Search results

This study aims to propose a methodology aimed at understanding the cognitive and physiological processes inherent in cadet pilot operations. Through analyzing responses from two cadet pilots with varied experience levels across diverse simulation scenarios, the research uses descriptive statistics, t-test, one-way ANOVA and percentage change analysis to explore crucial variables, including heart rate (HR), heart rate variability (HRV) and respiratory rate (RR).

The investigation meticulously examines HR, HRV and RR under circumstances encompassing resting state, visual flight rules and instrument flight rules with engine failure. Pilots undergo comprehensive analyses employing statistical techniques and visual representations to comprehend cognitive loads and physiological adaptations.

Significant disparities emerge between the two pilots, elucidating the profound impact of experience on cognitive and physiological outcomes. Novice cadet pilots exhibit heightened variability during scenario transitions, while experienced cadet pilot demonstrate controlled responses, indicative of adaptability. Visual flight simulations evoke distinct responses, whereas instrument-based scenarios, particularly those simulating emergencies, lead to pronounced physiological changes.

The findings of this research hold practical significance in introducing the proposed novel methodology for monitoring Cadet pilots to refine pilot training simulation protocols and enhance aviation safety by illuminating the interplay between experience levels and scenario complexities.

This study proposes a novel methodology for investigating cognitive and physiological responses in pilot operations, mainly investigating cadet pilots’ vital parameters through diverse analytical methods and an exploration of scenario-specific demands.

The purpose of this study is to numerically model the rigid pavement resting on Pasternak soil and to examine its various response parameters and stress resultants like deflection, rotation, bending moment and shear force when subjected to aircraft loading.

The study is carried out using a one-dimensional (1D) beam element based on the finite element method (FEM). Each node in this element has three rotational and three translational degrees of freedom (DOF). MATLAB programming is used to perform the static analysis of rigid pavement.

Response parameters and stress resultants of the rigid pavement were determined. The FEM used in this work is validated by two closed-form numerical examples, which are in great accord with previous research findings with a maximum divergence of 4.64%, therefore verifying the finite element approach used in the current study. Additionally, various parametric studies have been carried out to study the variations in response parameters and stress resultants.

The investigation at hand focuses exclusively on the static analysis of the pavement. The study constraints pertaining to the preliminary design phase of rigid pavements are such that a comprehensive three-dimensional finite element analysis is deemed unnecessary.

As limited previous research had performed the static analysis of rigid pavement on Pasternak foundation with 6 DOF. Furthermore, no prior study has done seven separate parametric investigations on the static analysis of rigid pavement.

This paper aims to advance the concept of “menstrual justice” by building on the comprehensive framework developed by Margaret E. Johnson (2019), which integrates legal rights, social justice and intersectional analysis. By applying Johnson’s insights and human rights frameworks to menstrual health management, the study advocates for state interventions to safeguard women labourers from exploitative practices that endanger their reproductive health and to uphold their menstrual rights.

A case study methodology is used to scrutinize menstrual injustices experienced by women labourers in precarious employment conditions. Specifically, it examines two cases, the mass hysterectomies in Beed, Maharashtra and the administration of unidentified pharmaceuticals to women in Tamil Nadu factories to mitigate menstrual pain and maximize productivity.

The findings reveal severe violations pertaining to menstrual justice, with practices deeply rooted in socioeconomic deprivation and systemic neglect. These issues subject female workers to various forms of gender-based violence that goes beyond physical abuse, raising critical concerns about menstrual justice and human rights violations.

The study’s findings have limited generalizability due to the specific contexts of the case study. Furthermore, the absence of insights from managers/supervisors, and factory owners limits a comprehensive understanding of the policies and factors leading to neglect of menstrual management practices.

The findings of the study will prompt the medical industry to initiate research into medications that can effectively alleviate period pain while minimizing harmful side effects. Current treatments often come with significant drawbacks, highlighting the need for safer and more effective alternatives. Addressing this research gap is vital for achieving menstrual equity, as it ensures that individuals suffering from menstrual pain have access to relief that does not jeopardize their overall health. Advancing research in this area will not only enhance the quality of life for menstruators but also contribute to a more equitable and inclusive approach to menstrual health care.

The findings support reframing menstrual friendly labour policies including comprehensive sexual and reproductive health information to everyone, regardless of gender, to reduce misinformation and stigma associated with menstruation at workplaces. Additionally, the study proposes the introduction of reusable menstrual products like menstrual cups to overcome period poverty. Thus, ensuring access to these resources is crucial for enabling informed decision-making, promoting gender equality, addressing health disparities and fostering the development of menstrual-friendly workplace policies.

This study, by using a case study-based approach, has thoroughly examined the issues and challenges faced by female labourers in fields and factories. It uniquely identifies the inadequacies in menstrual management provisions for female workers in India and advocates for a human rights-based approach to ensure that menstruators can manage their menstrual health safely. Unlike most existing studies, which primarily focus on product usage and the stigma or myths surrounding menstruation, this study advances menstrual justice by calling for labour policy reforms and medical research to lessen menstrual pain without compromising menstruators’ health. These reforms aim to provide working women with adequate rest and necessary provisions during menstruation. Addressing these gaps is essential and has been largely overlooked in global health policies.

This study aims to explore the synthesis and tribological performances of di-n-octyl sebacate (DOS) synthesized with spherical nano-MoS₂/sericite (SMS) and carboxylated SMS (CSMS) as catalysts.

SMS and CSMS were used as esterification catalysts to synthesize DOS from sebacic acid and n-octanol. The two catalysts were in situ dispersed in the synthesized DOS after the reaction to form suspensions. The tribological performances of the two suspensions after 20 days of storage were studied.

CSMS was more stably dispersed in DOS than SMS, and they reduced friction by 55.6% and 22.2% and wear by 51.3% and 56.5%, respectively. Such results were mainly caused by the COOH on CSMS, which was more conducive to improving the dispersion and friction reduction of CSMS than wear resistance. Another possible reason was the difference between the dispersion amounts of CSMS and SMS in DOS. The sericite of SMS was converted into SiO₂ to enhance wear resistance, while that of CSMS only partially generated SiO₂, and the rest still remained on the surface to reduce friction.

This work provides a more effective SMS catalytical way for DOS synthesis than the traditional inorganic acid catalytical method. SMS does not need to be separated after reaction and can be dispersed directly in DOS as a lubricant additive. Replacing SMS with CSMS can produce a more stable suspension and reduce friction significantly. This work combined the advantages of surface carboxylation modification and in situ catalytic dispersion and provided alternatives for the synthesis of DOS and the dispersion of MoS₂-based lubricant additives.

In typical model-based calibration, linearization errors are derived inevitably, and non-negligible negative impact will be induced on the identification results if the rotational kinematic errors are not small enough or the lengths of links are too long, which is common in the industrial cases. Thus, an accurate two-step kinematic calibration method minimizing the linearization errors is presented for a six-DoF serial robot to improve the calibration accuracy.

The negative impact of linearization on identification accuracy is minimized by removing the responsible linearized kinematic errors from the complete kinematic error model. Accordingly, the identification results of the dimension-reduced new model are accurate but not complete, so the complete kinematic error model, which achieves high identification accuracy of the rest of the error parameters, is combined with this new model to create a two-step calibration procedure capable of highly accurate identification of all the kinematic errors.

The proportions of linearization errors in measured pose errors are quantified and found to be non-negligible with the increase of rotational kinematic errors. Thus, negative impacts of linearization errors are analyzed quantitatively in different cases, providing the basis for allowed kinematic errors in the new model. Much more accurate results were obtained by using the new two-step calibration method, according to a comparison with the typical methods.

This new method achieves high accuracy with no compromise on completeness, is easy to operate and is consistent with the typical method because the second step with the new model is conveniently combined without changing the sensors or measurement instrument setup.

Zygmunt Bauman was a Senior philosopher who did not need a previous presentation. His theses have shed light on modern philosophy and sociology globally. For Bauman, the liquid modernity should be understood through the lens of a binomial model, grounded on two main figures: vagabonds and tourists. The postmodern society is structured on an extreme social inequality expressed in the bipolar division between two classes: tourists and vagabonds. Each one is determined by a different degree of freedom of choice, which seems to be the cornerstone of postmodern life. The more freedom of choice each class showed the higher its rank in the postmodern social hierarchy. The chapter discusses the weaknesses and strengths in Bauman's reasoning.

This chapter explores genderwashing in the context of exclusive talent management (ETM) and defensive diversity management (DDM). It makes the counter intuitive argument that ETM is a misnomer in that it privileges maintenance of an organizational hierarchy based on social identity over the development of talent. Further, DDM is a genderwashing tool, enabling organizations to fend off criticism through symbolic diversity, equity, and inclusion (DEI) initiatives while enacting discourses that legitimate structures, practices, and norms that produce a status hierarchy based on social identities. A genderwashing perspective reveals this contradiction and spotlights the uncomfortable reality of workplace inequalities. It also shows that operating within boundaries set by the status quo renders DDM ineffective in removing the real career impediments faced by women and members of minoritized groups (MMG). A transformative diversity management (TDM) approach is needed to confront these realities and enable organizations to support the career aspirations of women and MMG.