A Computationally Efficient Compact Model for Ferroelectric FinFETs Switching with Asymmetric Non-Periodic Input Signals

<div>In this paper, we develop a Verilog-A implementable compact model for the dynamic switching of ferroelectric Fin-FETs (Fe-FinFETs) for asymmetric non-periodic input signals. We use the multi-domain Preisach Model to capture the saturated P-E loop of the ferroelectric capacitors. In addition to the saturation loop, we model the history dependent minor loop paths in the P-E by tracing input signals’ turning points. To capture the input signals’ turning points, we propose an R-C circuit based approach in this work. We calibrate our proposed model with the experimental data, and it accurately captures the history effect and minor loop paths of the ferroelectric capacitor. Furthermore, the elimination of storage of each turning point makes the proposed model computationally efficient compared with the previous implementations. We also demonstrate the unique electrical characteristics of Fe-FinFETs by integrating the developed compact model of Fe-Cap with the BSIM-CMG model of 7nm FinFET.</div>

A Computationally Efficient Compact Model for Ferroelectric FinFETs Switching with Asymmetric Non-Periodic Input Signals

<div>In this paper, we develop a Verilog-A implementable compact model for the dynamic switching of ferroelectric Fin-FETs (Fe-FinFETs) for asymmetric non-periodic input signals. We use the multi-domain Preisach Model to capture the saturated P-E loop of the ferroelectric capacitors. In addition to the saturation loop, we model the history dependent minor loop paths in the P-E by tracing input signals’ turning points. To capture the input signals’ turning points, we propose an R-C circuit based approach in this work. We calibrate our proposed model with the experimental data, and it accurately captures the history effect and minor loop paths of the ferroelectric capacitor. Furthermore, the elimination of storage of each turning point makes the proposed model computationally efficient compared with the previous implementations. We also demonstrate the unique electrical characteristics of Fe-FinFETs by integrating the developed compact model of Fe-Cap with the BSIM-CMG model of 7nm FinFET.</div>

Historical Turning Points in Tourism: The Establishment of the Hotel Board in South Africa

The concept of “turning points” is increasingly applied to understand the evolution of tourism. Using archival research, it is demonstrated that a significant turning point for the evolution of tourism in South Africa occurred in 1964–1965 with the establishment of the Hotel Board and the beginnings of its operations. From 1928 government legislation produced a hotel industry in which most “hotels” were oriented more to liquor selling than the supply of accommodation services. This trajectory of the hotel industry continued into the 1960s. Arguably, the initiation of the Hotel Board was a turning point in the growth and modernization of the hotel sector and for the tourism industry in South Africa. Undertaken at a period of expansion in the domestic and international tourism industry as well as of rising government awareness as to the potential economic (and political) benefits from expanded tourism promotion the activities of the Hotel Board addressed the long standing shortcomings surrounding the quality and standards of provision of accommodation services in South African hotels. It represented a transition in the character of the tourist hotel in South Africa from one that was formerly dominated by liquor to an institution that—going forward—would be mainly concentrated on the provision of hospitality services.

Boundary-layer Features in Limit of Conservative Nonlinear Oscillators

In the double limit of high amplitude (xmax → ∞) and high leading power (x2 N+1, N → ∞), (1+1) dimensional conservative nonlinear oscillatory systems exhibit characteristics akin to boundary layer phenomena. The oscillating entity, x(t), tends to a periodic saw-tooth shape of linear segments, the velocity, x′(t), tends to a periodic step-function and the x − x′ phase-space plot tends to a rectangle. This is demonstrated by transforming x and t into proportionately scaled variables, η and θ, respectively. η(θ) is (2-π) periodic in θ and bounded (|η(θ)| ≤ 1). The boundary-layer characteristics show up by the fact that the deviations of η(θ), η′(θ) and the η − η′ phase-space plot from the sharp asymptotic shapes occurs over a range in θ of O(1/N) near the turning points of the oscillations.

Inicjacje terenowe i rozwojowy wymiar doświadczania „pola badawczego”. Opowieści o wojnie, zesłaniu i terenowym modus operandi

Ethnographic field research involves not only work, but also personal and existential experience. Sometimes it is routine, ordinary, and on schedule, but generally, it is not without difficulties and challenges. I discuss some of these in this article. The analysis is based on my own research experience, the common feature of which is the transgressive nature of experiences related by people and issues generally defined as “difficult”. My research projects involved war victims (exiles, refugees, deportees), i.e. people who often found themselves in life-threatening situations, had experienced loss, trauma and death of their relatives. Our meetings and interviews had cognitive, psychological and devel- opmental dimension, both in a personal and professional sense. I refer to these situations as “initiatory” experiences, as they constitute significant turning points in my perception of reality and my approach to research as a profession. In this paper, I discuss both meth- odological challenges related to research deemed difficult, as well as dilemmas related to ethnographic epistemology and the auto-ethnographic turn. My main concern here is whether and how to write about what is happening on the margins of field research and the personal struggles involved in such research.

From Chaplaincy to Spiritual Care: Turning points for an emerging health profession

Objectives: National standards in Australia acknowledge the significance of spiritual care in the provision of holistic care, understanding that peoples’ beliefs and values impact their experience and health outcomes. While spiritual care has been provided in Australian hospitals for many decades little attention has been given to changes in the workforce and the implications for quality of care. This study aimed to further understanding of the key influences and mechanisms for change to ensure safe and high-quality spiritual care provision in Australia by a qualified and credentialed workforce. Methods: This study used a qualitative case study design which included interviews and analysis of archived records. Narrative analysis produced an extensive organisational case study from which a timeline of key changes significant to the spiritual care workforce was constructed to inform this paper. Results: There have been movements towards a professional spiritual care workforce, but progress has been slow, and inconsistency persists across Australia. Five key influences were identified that provide a basis for future progress: the need for evidence, cooperation amongst stakeholders, investment by government and health service management, and leadership and advocacy from spiritual care peak bodies. Conclusions: Attention to historical turning points enables understanding of the influences for change. These can become opportunities for health management to further progress towards a qualified and credentialed spiritual care workforce able to deliver safe and high-quality spiritual care.

Exploring the Outcomes That Matter Most to Young People Treated for Chronic Pain: A Qualitative Study

Global and national policies state that all children and young people should be part of decision making and that outcomes that matter to them should take priority, yet patient-centred outcomes have been identified as a gap in the paediatric chronic pain literature. This study gave youths experiencing chronic pain a platform to have their views heard. Using novel methods, twenty-one young people, aged 11 to 18 years old, completed a semi-structured interview in which they constructed a timeline drawing to symbolise their treatment. They identified when aspects of their life changed (outcomes) and described the importance of these changes. Thematic analysis identified four themes that emerged at different stages of the treatment: “perfect storm”; “turning points”; “disconnect”; and; “free”. “Turning points” were points in time when the narrative of the young person took a turn in a different direction. At these points, the outcomes important to them also changed. Youths initially prioritised outcomes related to pain, then during treatment the focus became their emotional functioning, with role functioning and “going out” becoming the focus at the end. The stage of treatment as perceived by the young person impacted which outcomes mattered most.

Trajectories, Turning Points, and Interruptions: How Social Inequality Shapes Women’s Later-Life Health

We explore women’s health in midlife and later life at the nexus of structural sexism and the life course perspective, applying Dannefer’s (2018) concept of life course reflexivity, which emphasizes social dynamism with potential health-changing ‘input’ at all ages. We present three types of reflexive changes in the gendered life course that shape women’s health as they age: (1) trajectories of lifetime labor market disadvantage leading to limited health-protective resources in later life; (2) turning points in family structure and need, with draining caregiving demands; (3) interruptions in midlife, such as divorce, erasing the social and economic benefits of marriage. We provide support for critical arguments that theoretical work on the life course has too-often utilized the ‘privileged’ or the ‘male’ life course with insufficient attention to structural sexism as a fundamental cause of women’s health disparities in later life.