bluuebunny/crossref_metadata_2025 huggingface dataset:
Large Binocular Telescope Search for Companions and Substructures in the (Pre)transitional Disk of AB Aurigae
Authors: Jorquera Sebastián , Bonnefoy Mickaël , Betti Sarah , Chauvin Gaël , Buenzli Esther , Pérez Laura M. , Follette Katherine B. , Hinz Philip M. , Boccaletti Anthony , Bailey Vanessa , Biller Beth , Defrère Denis , Eisner Josh , Henning Thomas , Klahr Hubert , Leisenring Jarron , Olofsson Johan , Schlieder Joshua E. , Skemer Andrew J. , Skrutskie Michael F. , Van Boekel Roy
Published: February 2022

Multiwavelength high-resolution imaging of protoplanetary disks has revealed the presence of multiple, varied substructures in their dust and gas components, which might be signposts of young, forming planetary systems. AB Aurigae bears an emblematic (pre)transitional disk showing spiral structures observed in the inner cavity of the disk in both the submillimeter (Atacama Large Millimeter/submillimeter Array (ALMA); 1.3 mm, 12CO) and near-infrared (Spectro-polarimetric High-contrast Exoplanet Research; 1.5–2.5 μm) wavelengths, which have been claimed to arise from dynamical interactions with a massive companion. In this work, we present new deep K
s (2.16 μm) and L′ (3.7 μm) band images of AB Aurigae obtained with the L/M-band Infrared Camera on the Large Binocular Telescope, aimed for the detection of both planetary companions and extended disk structures. No point source is recovered, in particular at the outer regions of the disk, where a putative candidate (ρ = 0.″681, PA = 7.°6) had been previously claimed. The nature of a second innermost planet candidate (ρ = 0.″16, PA = 203.°9) cannot be investigated by the new data. We are able to derive 5σ detection limits in both magnitude and mass for the system, going from 14 M
Jup at 0.″3 (49 au) down to 3–4 M
Jup at 0.″6 (98 au) and beyond, based on the ATMO 2020 evolutionary models. We detect the inner spiral structures (<0.″5) resolved in both CO and polarimetric H-band observations. We also recover the ring structure of the system at larger separation (0.″5–0.″7) showing a clear southeast/northwest asymmetry. This structure, observed for the first time at L′ band, remains interior to the dust cavity seen at ALMA, suggesting an efficient dust trapping mechanism at play in the disk.
Development and validation of RP-HPLC method for analytical characterization of the anabolic steroid Methenolone acetate in food supplements
Authors: Tzankova Diana , Mateeva Alexandrina , Mitkov Javor , Peikova Lily , Georgieva Maya
Published: February 2022

Nutritional supplements are concentrated sources of nutrients, vitamins and minerals with a nutritional or physiological effect, the purpose of which is to supplement the normal nutritional balance. A necessity of the health risk associated with their unregulated usage requires development of suitable fast and precise methods for their evaluation. As an answer to this a novel RP-HPLC method for analytical characterization of the anabolic steroid Methenolone acetate in food supplement was developed. The method is based on separation and evaluation performed on an analytical column Kintex 5µm EVO C18 (100 × 4.6 mm) with mobile phase acetonitrile:water = 60:40, v/v; flow rate of 1.0 mL/min and UV-detection at 240 nm and column temperature, at 25 °C. The method has proved to be specific, linear, accurate and precise. The method identified a presence of both Methenolone and Methenolone acetate in the evaluated sample.
Revision of the “ Chloritis delibrata (Benson, 1836)” group (Gastropoda, Stylommatophora, Camaenidae)
Authors: Páll-Gergely Barna , Ablett Jonathan D. , Szabó Márton , Neubert Eike
Published: February 2022

Chloritis delibrata (Benson, 1836), known from northeastern India, was believed to have three varietal forms, sometimes mentioned as subspecies: C. delibrata var. khasiensis (Nevill, 1877) and C. delibrata var. fasciata (Godwin-Austen, 1875) from the Khasi Hills, India, and C. delibrata var. procumbens (Gould, 1844) from Dawei in Myanmar. The reproductive anatomy of the latter form is known and does not match with those of any continental camaenid genera, but does with that of the newly examined Chloritis platytropis Möllendorff, 1894 from Thailand. The latter species is conchologically similar to Bouchetcamaena huberi Thach, 2018 (synonym of Helix fouresi Morlet, 1886), which is the type species of the genus Bouchetcamaena Thach, 2018. Thus, Bouchetcamaena can provisionally host the entire Chloritis delibrata -group with the exception of var. fasciata, which is transferred to Burmochloritis Godwin-Austen, 1920 due to the multiple reddish bands on its shell. The examination of shells deposited in the Natural History Museum, London revealed that seven morphologically distinguishable forms are present, which are accepted here as representing distinct species. Four new species are described from India: Bouchetcamaena foveata Páll-Gergely sp. nov., B. fusca Páll-Gergely sp. nov., B. raripila Páll-Gergely sp. nov., and B. subdelibrata Páll-Gergely sp. nov.
The efficacy of EGFR-tyrosine kinase inhibitor in non-small cell lung cancer patients with synchronous brain metastasis: a real-world study
Authors: Choi Jin-Hyuk , Choi Yong Won , Lee Hyun Woo , Kang Seok Yun , Jeong Geum Sook , Ahn Mi Sun , Oh Young-Taek , Noh O kyu , Kim Se-Hyuk , Roh Tae Hoon , Sheen Seung Soo
Published: February 2022

Background/Aims: The optimal treatment (Tx) for epidermal growth factor receptor (EGFR)-mutant non-small cell lung cancer (NSCLC) patients with brain metastasis (BM) remains to be determined.Methods: A retrospective review was conducted on 77 NSCLC patients with synchronous BM who underwent first-line EGFR-tyrosine kinase inhibitor (TKI) Tx. The outcomes of patients were analyzed according to the clinicopathological characteristics including local Tx modalities.Results: Fifty-nine patients underwent local Tx for BM (gamma knife surgery [GKS], 37; whole brain radiotherapy [WBRT], 18; others, four) concurrently or sequentially with EGFR-TKI. Patients treated with TKI alone showed significantly lower incidence of central nervous system (CNS) symptoms. The median progression-free survival (PFS) and overall survival (OS) after the initiation of EGFR-TKI for all patients were 9 and 19 months, respectively. In 60 patients with follow-up brain imaging, the median time to CNS progression was 15 months. Patients with EGFR exon 19 deletion had a significantly longer median OS than those with other mutations including L858R (23 months vs. 17 months). Other clinical characteristics, including CNS symptoms, number of BM, and the use of local Tx were not associated with OS, as well as PFS. In terms of the local optimal Tx modality, no difference was found between GKS and WBRT in the OS and PFS.Conclusions: This study suggests that EGFR-TKI may result in a favorable outcome in NSCLC patients with synchronous BM, especially in deletion 19 mutant, regardless of the extent of BM lesions or local Tx modalities. Patients with asymptomatic BM can be treated with EGFR-TKI and careful surveillance.
L’expansion internationale des musées : entre diffusion du soft power et valorisation économique du patrimoine culturel
Authors: Anger Cécile
Published: February 2022

A partir d’une analyse du rapport de la Cour des comptes sur La valorisation internationale de l’ingénierie et des marques culturelles paru en 2019 et des pratiques menées par les établissements culturels, cet article se penche sur l’expansion internationale des musées français. Cette expansion se caractérise par la conclusion d’accords à titre onéreux. L’enjeu de diffusion de la culture française dans le monde est important mais il n’est pas exclusif. Tout en jouant de son soft power , la France noue des partenariats avec d’autres Etats qui permettent de valoriser son patrimoine culturel, en particulier son patrimoine mobilier (les œuvres de ses collections) et son patrimoine immatériel (le savoir-faire des hommes et des femmes qui travaillent dans les musées et les marques de ses grandes institutions culturelles).
Cancers et alimentation : de l’analyse des discours et des représentations à la création d’ateliers culinaires
Authors: Hugol-Gential Clémentine
Published: February 2022

Cet article s’intéresse aux enjeux du repas en situation de cancer et aux différentes valeurs et représentations qui traversent l’alimentation-cancer. Celles-ci se construisent, entre autre, au travers de discours médiatiques et de partages d’informations entre patients sur des médias sociaux. Le cancer et plus globalement, la maladie, interviennent comme une rupture dans la vie des patients induisant des modifications de comportements. Dans un second temps, grâce à une tâche de tri réalisée auprès de 60 patientes, ce travail s’attache à montrer les nouvelles représentations et pratiques alimentaires des patientes. L’ensemble de ce travail s’interroge sur le paradigme qui s’étend du pouvoir au devoir d’agir sur ses pratiques alimentaires, donnant lieu au développement de nouvelle modalité de prise en charge performative avec la mise en place d’ateliers culinaires. Cette nouvelle modalité permet alors de réinterroger la dimension de soins du repas et de réintroduire un prisme hédonique.
Plans nationaux de relance et de résilience de la France et de ses principaux pays voisins
Authors: Bisciari Patrick , Gelade Wouter , Melyn Wim
Published: February 2022

Le plan de relance Next Generation EU octroie, sur la période 2021-2026, davantage de moyens aux États membres qui étaient économiquement plus vulnérables avant la pandémie et qui ont subi des pertes économiques plus sévères en 2020 et 2021, comme l’Italie et l’Espagne, qu’aux autres États tels que l’Allemagne, la France et la Belgique. Pour ces cinq pays, l’article montre que plus les gouvernements reçoivent de subventions (et prêts) européens, plus ils se sont engagés à mettre en place, dès les premières années du programme, des réformes à la hauteur des défis auxquels ils sont confrontés.
Faut-il brûler les règles budgétaires ? Leçons de l’expérience américaine (1988-2017)
Authors: Farvaque Étienne , Joanis Marcelin , Ooghe Nicolas
Published: February 2022

L’étude des règles budgétaires en vigueur dans les États américains, pour la plupart depuis très longtemps, permet de juger si leur effet est pro ou contra-cyclique face à un choc. Nous analysons les ajustements budgétaires mis en œuvre, non seulement en étudiant les variations des dépenses et des impôts, mais aussi en intégrant la volatilité de l’emploi public. Nous utilisons une classification des règles budgétaires plus détaillée que celle couramment utilisée dans la littérature et intégrons également les fonds de stabilisation (Rainy Day Funds), qui offrent un instrument de lissage de la conjoncture, pour les États en possédant. Nous montrons que, pour les États américains en cycle budgétaire annuel, les règles budgétaires ne sont pas neutres : le nombre de règles budgétaires dans la phase de mise en œuvre du budget exerce une fonction limitative sur le budget, notamment si elles sont de nature constitutionnelle. Ce sont ces règles qui contraignent les gouverneurs à opérer des ajustements budgétaires, et ce avec un effet amplifié en fonction de la force d’un choc non anticipé (générant donc un comportement procyclique).
Could the Public Debt Management via ECB’s QE Create a Surge of Inflation in the Euro Area?
Authors: Papadamou Stephanos , Sidiropoulos Moïse , Vidra Aristea
Published: February 2022

Sur la base de l’expérience récente des programmes d’assouplissement quantitatif (QE) avec des taux d’intérêt négatifs adoptés par la BCE après la crise de la dette publique dans la zone euro (2010-2011) et face à la pandémie en 2020, nous étudions les effets de sa récente politique monétaire non conventionnelle sur la poussée de l’inflation dans la zone euro via le mécanisme des marges de crédit des banques. En utilisant la méthodologie des modèles « Panel Vector Autoregressive » (PVAR) sur huit États membres de la zone euro, cette étude suggère qu’une expansion du bilan de la BCE due à la monétisation de la dette publique génère un faible effet positif sur l’inflation de la zone euro lorsqu’elle s’accompagne aussi d’une politique de taux négatifs. Ceci valide le résultat selon lequel « la crainte exprimée par certains que l’excédent monétaire résultant des injections massives de liquidités via l’assouplissement quantitatif puisse conduire à de l’inflation dans la zone euro ne résiste pas à l’épreuve » (De Grauwe [2021]) ainsi que la proposition de Christine Lagarde [2021] réitérant que le programme de QE de la BCE se poursuivra et qu’il n’est pas envisagé de relever les taux d’intérêt en 2022.
Stability analysis of pressure and penetration rate in rotary drilling system
Authors: Mlayeh Rhouma
Published: February 2022

The purpose of this paper is to stabilize the annular pressure profile throughout the well bore continuously while drilling. A new nonlinear dynamical system is developed and a controller is designed to stabilize the annular pressure and achieve asymptotic tracking by applying feedback control of the main pumps. Hence, the paper studies the control design for the well known Managed Pressure Drilling system (MPD). MPD provides a closed loop drilling process in which pore pressure, formation fracture pressure, and bottomhole pressure are balanced and managed at surface. Although, responses must provide a solution for critical downhole pressures to preserve drilling efficiency and safety. Our MPD scheme is elaborated in reference to a nontrivial backstepping control procedure, and the effectiveness of the proposed control laws is shown by simulations.
« Ce sont toujours les mêmes qui participent » : la norme selon Foucault dans les dispositifs participatifs institutionnels
Authors: Amand Léa
Published: February 2022

À partir d’une ethnographie menée en contexte de gouvernance municipale, notre contribution analyse les obstacles à l’inclu­sion des profils éloignés de la participation au sein des disposi­tifs participatifs institutionnels. Reprenant la théorie du dispositif selon Foucault articulant les notions de normes, de savoirs et de pouvoir, nous démontrons que la non-maîtrise des savoirs et postures légitimés par la norme et véhiculés par le dispositif participatif est source d’exclusion des rapports de résistance au pouvoir, incarné par les élus et agents de la Ville.
Integrating Spirituality in Modern Workplaces
Authors: Thomas Jais V. , Mallika Sankar M.
Published: February 2022

The organizational system across the world is undergoing a transition and is affected by numerous factors ranging from technology to psychology as the COVID-19 pandemic has created a perplexing situation in all spheres of life. The pandemic made people experience trauma, anxiety, stress, and psychological pressure. The stressors can damage health and influence the sense of well-being, behaviour, and mental health. The magnitude of issues faced by the organizational members and approaches to overcome these post-COVID situations have to be given high importance, and the present study is an attempt to understand the relevance, applicability, and appropriateness of workplace spirituality and its interconnectedness with occupational burnout, work engagement, and employee wellbeing. Previous research studies have been relied upon for developing the conceptual framework of the study. The insights gained from the study include a positive linkage between workplace spirituality and employee wellbeing mediated by thriving at work, work engagement, and occupational burnout.
Service Learning as an Approach to Combatting the Triad of Interrelated Diseases in the District of Columbia
Authors: Jean-Baptiste Anne Marie , Asongwed Elmira T.
Published: February 2022

The maintenance of good health and wellness for individuals and communities depend on the provision of opportunities to prevent health problems and improve their basic health and well-being. The traditional learning approach in the nursing profession is based on individual and curative models of care. However, combating the interrelated triad of heart disease, diabetes, and hypertension that affect a large percentage of younger and older adults in the District of Columbia calls for a paradigm shift of learning toward a collective and social approach such as service-learning. The purpose of this chapter is to illustrate how interprofessional and multi-disciplinary practices are used to tackle health issues and explain how the pedagogical approach, with social and preventive directions, led to the development and sustainable community partnerships in all eight wards of the District of Columbia.
Integrating Service Learning Into Higher Education Curriculum
Authors: Guptan Vinitha , Rasiah Ratneswary , Turner Jason James
Published: February 2022

This study aims to assess the effectiveness of integrating service learning into the business curriculum of a higher education provider to enhance learners' competencies and reflective learning. Founded on the educational theories of constructivism and social learning, this research consolidates and takes research forward in the understanding of how transforming the business curriculum by integrating service learning through teacher-learner partnerships enhances a students' ability for reflective learning. Using a self-administered questionnaire-based survey with 256 respondents, the data were analysed using variance based PLS-SEM to reveal that service learning had a significant positive influence on reflective learning and on student competency development. The results indicate the positive impact that team-based service learning through teacher-learner partnerships had on the learners' experience. These findings offer some interesting insight for educators, researchers, and policy makers as a means to enhance the learning experience of students in tertiary education in Malaysia.
Building a Local Network
Authors: Lewis Nancy , Regosin Elizabeth , Rocchio Rivka
Published: February 2022

The purpose of this chapter is to highlight the ongoing development and work of a local consortium of post-secondary educators, correctional administrators, and community members who aim to bring education programs to local prisons and jails. The authors contend that bringing post-secondary education programs to prison and preparing people who are incarcerated for successful transition to their home communities is a local responsibility as well as a grassroots endeavor. Although such a project necessitates careful attention to local conditions and resources, the authors have identified overarching strategies that can benefit any community thinking about similar projects. This chapter offers readers insight into identification of the need for such a consortium in their community, network-building strategies, and an overview of successes, challenges, and the path forward.
Experiencing Democracy and Diversity
Authors: Schwarze Sharon
Published: February 2022

The course “Democracy and Diversity” used oral history gathering as a service-learning project. The obvious goal of the oral history project was to preserve valuable stories from the residents of Mt. Pleasant, a small community on Philadelphia's Main Line, mostly African American. The second goal was to ease the problems caused by student renters in the neighborhood. The students primarily used the neighborhood for partying off campus and showed little respect for the longtime residents. The process of creating the oral histories created a bridge between town and gown and raised the consciousness of the students. The course used a variety of materials and practices to prepare students. One of the residents of Mt. Pleasant, Barbara Byrd, co-facilitated the course and provided a strong link and a welcoming role model for the class.
LEAD Testimonials
Authors: Palazzolo Alyssa N.
Published: February 2022

Through service-learning courses, the University of Windsor's Faculty of Education seeks to provide meaningful learning opportunities in different areas of education for teacher candidates. This chapter includes a summary of a Master's thesis research study that, in part, explored the impact of the experiences secondary teacher candidates had in the L.E.A.D. Program, and how their experience impacted their efficacy with diverse student populations. The important themes that emerged from their reported experiences were practical experience, empathy and understanding, social learning, and life-long learning. This chapter also includes a compilation of testimonials from both elementary and secondary teacher candidates that were collected at various points after their graduation.
Best Planning Practices for Differentiated Instruction for Learners With Disabilities
Authors: Luhalima Takalani Rhoda , Mulovhedzi Shonisani Agnes
Published: February 2022

This chapter discusses the best planning practices for differentiated instruction for learners with disabilities. The inclusion classroom should be facilitated by the teacher with a spirit of “Ubuntu.” Best planning practices assist the teacher to give each learner with disabilities a multitude of ways of learning and to achieve learning goals. It also elucidates differentiated instruction and “Ubuntu” as an essential concept and the importance of differentiated instruction in the education of learners with disabilities. It focuses on the components of differentiated instruction, classroom arrangements, and ways of managing it during teaching and learning. Further, it provides strategies that could be used to restore “Ubuntu” in education and to assist teachers to customise their teaching approach to the learning styles of their learners. The chapter clarifies ways of differentiating instruction for special education and identifies challenges that teachers face when teaching learners with disabilities and concludes by explaining various teaching methods of differentiated learning.
Responding to Learner Needs Through Adaptation, Accommodation, and Modification
Authors: Nkomo Duduzile , Dube Buyisani
Published: February 2022

All over the world, the growing appreciation of the right to basic education of all learners, including those with special needs, in mainstream schools has attempted to influence the provision of necessary support systems. These support systems usually call for modifications or adaptations in various areas of instruction such as curriculum content, teaching methods, and the physical environment. It is, however, imperative that the education development agenda, particularly targeted at learners in Africa, be premised on the guiding values of ubuntu philosophy. This chapter, therefore, discusses ways in which the unique needs of different learners in an African context can be effectively met through adaptation, accommodation, and modification. Particular attention is mainly given to learners with physical disabilities, intellectual disabilities, visual loss, hearing loss, learning disabilities, emotional and behavioral disorders, communication and speech disorders, chronic illnesses, and those from minority cultural groups.
Responsive Assessment Tools in an Inclusive Education Setting
Authors: Jili Nokukhanya Noqiniselo
Published: February 2022

Within a South African context, facilitating the increased participation of marginalized groups within society has become a cornerstone of social policy. In institutions of higher education, this has generally involved the targeting for support of individuals representing groups traditionally excluded on the grounds of socio-economic and disability status. The focus has tended to be more on physical access issues and some technical supports. For students with disabilities, assessment practices are fraught with additional limitations. One will say that access issues within higher education have been inadequately conceptualized and as a result failed to address fundamental issues around assessment for students with disabilities. Hence, this chapter explores diverse assessment practices that are used as a tool in responsive inclusive education settings particularly in institutions of higher learning. It comprises of a literature review focusing on the analysis of inclusive education and diverse assessments practices that can be used to respond to challenges of inclusive education.
Feminist Approaches to Global Migration
Authors: Harris Karleah , Vakkia Roseline Jindori Yunusa , Ashirifi Gifty Dede , McCarthy Peter , Le Kieu Ngoc
Published: February 2022

Women comprise slightly less than half of the total population of immigrants across the world. As advocacy and fight for equal rights, opportunities, and identity for women continue, migration opens doors to global education for immigrant women to obtain personal autonomy, independence, empowerment, and a chance of earning higher wages than what they would have earned in their home countries. On the opposite end, women may also face oppression, gender inequality, and discrimination based on their ethnicity, class, and race through migration. This chapter highlights the rewards and drawbacks experienced by migrant women and feminist theory approaches to global migration. Examining the experience of migrant women using feminist theory underpinnings could potentially lead to deeper understanding and recommendations for international policies as well as evidence-based, culturally competent interventions to assist women migrants.
Gender Bias in School Education
Authors: Thasniya K. T.
Published: February 2022

Education has ever been considered as the best instrument for facilitating women empowerment and ensuring gender justice. Schools play a major role in gender socialization, and are expected to develop proper attitudes and values in children required for a gender just society. Based on the empirical studies conducted in 24 schools in Kerala, India, the gender bias existing in the overall school climate and classroom practices are exposed. The study using observation and interviews revealed that the practices in several schools are gendered with regard to the rules and regulations, dress code, seating arrangements and play provisions to boys and girls. Findings also revealed that there are gendered classroom practices existing with regard to teacher-student verbal interaction, teacher eye contact and attention, grouping of students, assigning roles and responsibilities, and disciplinary practices. Based on the findings, the author suggests measures to eliminate the gender bias from the school education system.
A Phenomenological Study of Female and Feminist Identities Among Iranian Muslim Immigrant Women
Authors: Malekan Mozhgan
Published: February 2022

Little is known about Iranian Muslim immigrant women in the US with respect to their female and feminist identities and the interconnections with Islam and immigration. The aim in the current study was to provide detailed answers to the research questions using diagrammatic elicitation, semi-structured individual interviews, and observation as the primary tools for collecting data. Two themes—immigration and experiencing more freedom and autonomy and immigration and different conditions—emerged through diagrammatic elicitation. Five themes emerged during the interviews. These themes included experiencing social change and a new definition of the situation, experiencing different values, empowerment and emancipation, fulfillment of needs, and self-image. Three themes appeared from observation of the participants in the group meetings: gender identity versus national and religious identities, America the land of opportunities, and to be or not be is the question. The current study suggests that the participants are experiencing a sort of gender consciousness and agency.
Gender Differences in Perception of Gamification Elements on Social Live Streaming Services
Authors: Scheibe Katrin , Zimmer Franziska
Published: February 2022

Gamification is seen as an important factor for people to use different services, this also applies to social live streaming services (SLSSs). In China, there are around 200 SLSSs available, and the most successful of them apply a wide range of gamification elements. The general SLSS YouNow, which is mostly used by the younger generation, is a SLSS with the most applied gamification elements outside of China. However, it remains unclear if and to what extend gamification elements motivate female and male streamers differently. We empirically investigate this question by applying a survey with 94 streamers (female N = 48; male N = 46). The results indicate that YouNow is seen favorable by the streamers, but female streamers have a more positive view of it. Furthermore, male and female streamers are inclined to spend real money to further their motives. Overall, female streamers are more motivated by gamification elements than male streamers. Female streamers prefer Levels, the Progress Bar, Badges; male streamers favor Coins, Gifts, and Levels.
Dangerous Women Feminism
Authors: Allmark Panizza
Published: February 2022

In the last 10 years, feminism has been foregrounded in popular music more than at any time. At the same time, female pop music artists have been the target of hostility because of the feminist messages they espouse. This chapter examines US-based female popular music artists who have embraced a postfeminist agenda. This agenda engages messages of empowerment, sex positivity, and elements of girl culture. In addition, this chapter explores the notion of resilience in relation to how these music artists have used the voice of feminism to become outspoken and show independence and strength in celebrating the female body. In particular, the author discusses the discourse of their concert tours, as this is a time when these artists are in the spotlight through both their performance and the promotional materials for those performances and as a consequence are more open (and vulnerable) to critique than at other times.
If S/He Be Worthy
Authors: Guinibert Matthew , Nairn Angelique
Published: February 2022

This study examined Redditors' reactions to the announcement that Natalie Portman will play female Thor in Thor: Love and Thunder. The discussions on Reddit allowed fans to voice support, trepidation, and condemnation of the announcement. The authors analysed over 4000 Reddit comments using thematic analysis, which resulted in seven themes regarding women's voice and agency. They found that many Redditors engaged in bullying, misogyny, and hate speech while others supported the pro-feminist implications. Further, they found that Marvel's attempts at “going woke” drew condemnation from fans espousing male dominance and dividing those that voiced feminist rhetoric.
Reckoning With #MeToo and the Aftermath
Authors: Sohal Prabhjot Kaur
Published: February 2022

In 2017, following the #MeToo movement stirred by the public outing of Hollywood producer Harvey Weinstein, the safety of women at the workplace became a prime agenda for international news media. Although far from being truly inclusive, the #MeToo movement rapidly spread to other parts of the world. Women of different nationalities, backgrounds, and race shared their stories of abuse and survival using the #MeToo hashtag and its variants. In 2018, women within the news media industry in India joined the movement and called out prominent editors, filmmakers, and artists on social media for perpetrating and abetting acts of sexual harassment and abuse against them. As an immediate result, several accused were made to resign from their organizations and dropped from prestigious public posts. However, a backlash to the movement followed soon after, most evidently in the form of victim-shaming and defamation lawsuits against women. Based on the theory of epistemic advantage, the study explores the perception of sexual harassment among journalists in India using in-depth interviews.
Foreign Body Shape Classification Using Intuitionistic Fuzzy Rule Based Approach on Pediatric Radiography Images
Authors: Vasumathy M.  , Mythili T.
Published: February 2022

Segmentation is the significant key stage in image analysis towards partitioning an image into different regions which have homogeneous features such as color, shape, and texture which is very important in classifying different region shapes in an image. In general, images are considered fuzzy due to the uncertainty present in terms of vagueness. The regions contain imprecise gray levels and uncertain data values which makes the task of defining the membership function difficult due to lack of precise knowledge. The intuitionistic fuzzy rule-based shape classification approach is used to classify the different shapes, such as circular, polygon, sharp, and irregular of the aspired foreign body on pediatric radiography images. Experimental results show the effectiveness of the proposed method in contrast to conventional fuzzy rule base algorithm.
Social Hazards or Helpers?
Authors: Blackwell Courtney K.
Published: February 2022

This chapter reviews current theoretical and empirical work on associations between young children's mobile media use in early childhood education settings and their social development, including social relationships and foundational social skills such as communication, collaboration, and positive social interactions and engagement. Touchscreen tablets are highlighted given their increased presence in early childhood education as well as their unique affordances specifically for young children. Particular attention is paid to factors influencing whether, what, and how educators integrate tablets into their classroom environments; facilitators and barriers to integration; how such integration may enable or interfere with social skills and relationships; and implications for practice and policy.
Present and Future Prospects of Blockchain Technology in Healthcare
Authors: Kurni Muralidhar , Saritha K.  , Mohammed Mujeeb Shaik
Published: February 2022

Many sectors, including finance, government, energy, health, and others, have found interest in blockchain technology over the last decade. It's no exaggeration to state that blockchain is pervasive in the healthcare industry. According to industry insiders, its application in healthcare has yet to achieve its full potential, but the implications might be substantial as it matures. This chapter presents the ongoing research trends, the existing issues and challenges, and presents future research opportunities to understand blockchain better. This chapter also throws light on the concepts of blockchain. This chapter also presents some examples of the uses of blockchain in healthcare. The authors hope that this chapter provides insight to the readers on the present and future research opportunities of blockchain in healthcare.
Integration of Blockchain and Supply Chain Management
Authors: Verma Manish
Published: February 2022

Supply chain has been the main process of sustainable products/services flow from supplier to customer in various industries. Blockchain has been a revolution in cryptocurrency, and it is the tamperproof, timestamp, consensus-based algorithm with the decentralized ledger. There are emerging applications of blockchain from financials to healthcare and creating various jobs in service industries. Big data and Industry 4.0 with the blockchain ecosystems can bring efficiencies and real-time transactions in the pharmaceutical industry from origin to distribution in the healthcare supply chain. This chapter shall explain the physical aspects of the integration of blockchain and supply chain management in pharmaceutical industries.
Combined Processing of Flat End Surfaces of Electrical Parts
Authors: Tkachenko Artem N. , Selemeneva Elena M. , Cherepenko Arkady A. , Zvyagina Elena A. , Kovaleva Vera S.
Published: February 2022

The article shows the relevance and scientific significance in the use of a combined processing method that combines the cutting process and surface plastic deformation, which provides an increase in the efficiency of processing of the basic flat end surfaces of electrical parts made of copper, the study of the patterns of microrelief formation during mechanical processing and plastic deformation of a copper surface. It was found that the use of a combined tool allows you to combine several transitions, which provides an increase in processing productivity by reducing the machine and auxiliary processing time. Replacing the grinding operation of the existing technological process with diamond burnishing can significantly improve the quality of the processed surface.
Stages and Irregularities of Plastic Strain in Austenitic Stainless Steel within a Temperature Range of 143 < t < 420 k
Authors: Barannikova Svetlana A. , Nikonova Albina M. , Kolosov Sergey V. , Shlyakhova Galina V.
Published: February 2022

This work aims at investigating the stages and irregularity of plastic strain in austenitic stainless steel 12Kh18N9T within a temperature range of 143 < T < 420 K. The localized plastic strain fronts at different stages of strain hardening have been visualized and monitored via digital speckle photography (DSP). This method consists in the high-accuracy recording of the displacement field via tracking any material surface changes and the subsequent comparison of speckle images acquired under uniaxial tension. The stress-strain diagrams were found to strongly vary with a decrease in temperature due to strain-induced-phase transition. The analysis of localized strain distributions revealed the emergence of a mobile system of equidistant strain localization foci at the strain hardening stage. The temperature dependence of plastic strain localization parameters at the linear strain hardening stage was established as well.
Energy and Exergy Analysis of the Performance of a Double Effect Libr-H2O Absorption Chiller Using the Adapted Characteristic Equations Method
Authors: Belkacem Gouasmi , Boumeddane Boussad , Mahmoud Gouasmi
Published: February 2022

Various researchers have developed a model of conventional H2O -LiBr absorption machines, with the aim of predicting their performance. In this paper, the methodology of the adaptation of the characteristic equations is applied; this model is able to represent the cooling capacity of the double effect absorption chiller by means of simple algebraic linear equation. As a result, it is concluded that a good agreement between the theoretical simulation using the thermodynamic model and the results obtained on the literature. The results achieved through the adapted characteristic equations model have a deviation less than 10% for the cooling capacity and the coefficient of performance COP, and less than 15% for the heat capacity comparing to the thermodynamic model results. The developed characteristic equations and their assessment are useful for the simulation and the control purpose.
Isothermal Transformation Diagrams of Austenite in Maraging Steel 08H15N5D2T at Overcooling
Authors: Makhneva Tat’ana M. , Sukhikh Arkadiy A. , Dementyev Vyacheslav B. , Makarov Sergey S.
Published: February 2022

The diagrams of isothermal transformation based on kinetic curves R = (τ) for retained austenite in high-strength alloy low-carbon at overcooling have been built. It is shown that the temperature of quenching influences the stability at overcooling and resistance to isothermal transformation of austenite at sub-zero temperatures.
Renewable Energy Sources Scheduling Approach for Windfarm Layout Optimization by Using Ant Lion Optimization Algorithm
Authors: Nawal Taleb , Bachir Bentouati , Saliha Chettih , Abdelkader Harrouz , El-Sehiemy Ragab
Published: February 2022

The increasing penetration of RES and the intermittent nature of various distributed power generation (DG) resources have created uncertainty in variable power production and power systems. The overall energy output of a wind farm may be optimized by strategically positioning wind turbines. This paper proposes a three-step strategy to dealing with the difficult-to-control problem of wind farm layout optimization. To construct the non-wake and wake impacts at various levels, three case scenarios are studied. The proposed strategy is used to a particular Ant-Lion Optimization Algorithm (ALOA) as a novel approach to producing highly efficient optimal output power, as well as case studies using actual wind data assessing potential turbine site. Finally, the simulation results demonstrate that the suggested approach is robust in ALOA design because it further reduces the objective function on the best new outcomes to implement all network restrictions acquired via the analysis.
Method of Diamond-Like Coatings Obtaining
Authors: Chkalov Ruslan V. , Chkalova Darya G.
Published: February 2022

The article is devoted to the method of obtaining a diamond-like coating on a silicon substrate by laser ablation of a glassy carbon target in a vacuum. The presented technology makes it possible to achieve the synthesis of wear-resistant thin-film coatings with a thickness of about 200 nm. The diagnostics of the obtained coating was carried out using probe microscopy, the chemical and phase composition was estimated by the Raman spectra.
Effect of Atmospheric Pressure Plasma in Inert Gases on Orthopedic Ultra-High Molecular Weight Polyethylene
Authors: Vasilets Victor N. , Velyaev Yuriy , Mosunov Andrew , Evstigneev Maxim
Published: February 2022

In this work, studies have been conducted on the treatment of ultrahigh molecular weight polyethylene (UHMWPE), which is one of the structural materials used in the endoprostheses, with atmospheric pressure plasma in high-purity argon and helium. For this purpose, an installation consisting of a high-voltage pulsed generator, voltage and current measuring devices and a reaction quartz chamber with electrodes, in which UHMWPE samples were placed, was developed and constructed. It is shown that processing under certain conditions in Ar plasma and He at atmospheric pressure leads to the appearance of terminal double bonds in the structure of the processed polyethylene, as evidenced by the appearance of a peak of 880 cm-1, in the attenuated total reflection IR spectrum. This peak is observed both for samples treated in helium and argon plasma. The formation of such bonds is a consequence of the generation of active radicals in the UHMWPE surface layer under plasma treatment, which, during recombination, also form intermolecular crosslinking, thereby increasing the strength characteristics of the material as a whole. The modification of the surface of the treated samples begins within the first minute of processing and reaches its peak values 10-20 minutes after treatment in plasma.
Simulation of Rolling and Analysis of Structure and Properties of F420W Cold-Resistant Steel for Manufacture of Wind Turbine Towers
Authors: Knyazyuk T.V. , Novoskoltsev N.S , Kondratyev N.A
Published: February 2022

Two schemes of thermomechanical processing of F420W cold-resistant steel to produce sheets with thickness of 5 and 15 mm for manufacture of wind turbine towers, were developed and tested in laboratory conditions. The first scheme simulated hot rolling on a continuous mill, including reductions with minimal inter-deformation pauses and subsequent slow cooling. The second one corresponded to hot rolling on a reverse mill with accelerated cooling. Mechanical properties were analyzed taking into account the related structural features. Technological recommendations for hot rolling of a thin sheet made of high-strength cold-resistant steel were proposed.
Effect of Elements of the Cutting Conditions on the Amplitude of Vibration during End Milling
Authors: Topolov Dmitriy Y. , Boldyrev Igor S.
Published: February 2022

The choice of cutting mode elements in end milling has a significant effect on machining performance. However, an increase in these parameters leads to an increase in cutting force and vibration amplitude. Therefore, the designation of the elements of the cutting mode must be carried out taking into account the dynamic phenomena accompanying milling. The article shows the influence of the depth of cut on the amplitudes of forced vibrations. The choice of the optimal values of the cutting mode during end milling is proposed to ensure the minimum vibration amplitude.
The Structure and Properties of Hardening Coatings of Low-Chromium Hard Alloys for Agricultural Machine Parts
Authors: Malikov Vladimir N. , Ishkov Alexey V. , Polkovnikova Marina V. , Ivanaisky Viktor V.
Published: February 2022

A new surfacing material consisting of the Fe-Si-Cr-Cu-C-B system sparingly alloyed with chromium is proposed for agricultural machine parts hardening by induction surfacing method capable to replace the currently widely used materials like Sormite No. 1, 2, PG-US25/27 and those similar to them. The chromium content in the new material is 4.3 %, which is 3-8 times less than that in analogs. The new material was obtained metallurgically, its phase, chemical composition and properties were investigated. The main phase of the alloy is Ferrosilide FeSin, along the grain boundaries of which a carbide phase is precipitated represented by small particles of Cr2C3, Cr7C3 carbides of regular and acicular shapes, as well as large particles of special chromium carbides (Cr,Fe)7C3, (Cr,Fe)23C6. In terms of the relative content, the carbides present in the new material can be conventionally arranged in the following series: (Cr,Fe)23C6 > (Cr,Fe)7C3 > Cr7C3 > Cr2C3.
Determination of Rational Structural Parameters for Sandwich Panels with a Cone-Shaped Filler’s Cells
Authors: Zotov Anatoly A. , Volkov Anton N. , Kokurov Andrey M.
Published: February 2022

The paper presents an algorithm, methodology and results of solving the primary problem of determining the stress-strain state and choosing design parameters for a three-layer structure under uniform pressure loading, depending on the size and pitch of support filler’s cells, as well as geometry features of the simulated structure.
Application of the Method for Optical Measuring the Neck Profile to Determine the Hardening Curve of Aluminum from the Results of the Tensile Test
Authors: Erpalov Mikhail , Khotinov Vladislav
Published: February 2022

The article is devoted to studying the rheological properties of metals and alloys in a cold state based on the results of tensile tests of cylindrical specimens. The aim of this study is to apply the method for optical measuring the neck profile for determining the hardening curve and to evaluate the accuracy of the data obtained using reverse simulation of the test process. For the study, the specimen of aluminum was used, which is characterized by increased plasticity and a continuous stage of deformation concentrated in the neck. The experimental data were processed using the Bridgman, Davidenkov-Spiridonova, and Ostsemin models. The results of the reverse simulation that performed using the hardening curve based on the Ostsemin model have the greatest convergence with the laboratory experiment in terms of tensile force and convergence at the level of other models in terms of neck shape change.
Additive Technologies in Manufacturing and IT Industry
Authors: Kurasov Dmitry A.
Published: February 2022

Additive technologies over the past two decades have formed a technological innovation segment of mechanical engineering: world markets for technologies, equipment have been formed, large-scale research and development work is being carried out, standards for product certification are being developed. The article discusses additive technologies and their definition. The main types of these technologies and their classification are understood. Conclusions on positive and negative aspects of each technology are formed.
Some Aspects of the Experimental Method for Determining Residual Stresses in the Circular Grooves of Body Parts
Authors: Terekhov Viktor , Khizhov Mikhail , Mironova Lubov , Vinnikov Viktor
Published: February 2022

An approach to the development of the full-scale specimens for an experimental method to determine the residual stresses in the circular grooves of body parts is described. The selection of the specimen shape is based on the fulfillment of the geometric and force similarity conditions. The form of a surveillance specimen and loading conditions are proposed, during which all the equally-spaced points of the specimen experience an equal stress-strain state. This approach enables to correctly determine the residual stress levels for various methods of the part machining by cutting.