scholarly journals Integrated Photodetectors Based on Group IV and Colloidal Semiconductors: Current State of Affairs

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 842
Author(s):  
Principia Dardano ◽  
Maria Antonietta Ferrara

With the aim to take advantage from the existing technologies in microelectronics, photodetectors should be realized with materials compatible with them ensuring, at the same time, good performance. Although great efforts are made to search for new materials that can enhance performance, photodetector (PD) based on them results often expensive and difficult to integrate with standard technologies for microelectronics. For this reason, the group IV semiconductors, which are currently the main materials for electronic and optoelectronic devices fabrication, are here reviewed for their applications in light sensing. Moreover, as new materials compatible with existing manufacturing technologies, PD based on colloidal semiconductor are revised. This work is particularly focused on developments in this area over the past 5–10 years, thus drawing a line for future research.

2018 ◽  
Author(s):  
Marina Milyavskaya ◽  
Kaitlyn M. Werner

Personal goals are ubiquitous in everyday life, with people typically pursuing multiple personal goals at any given time. This paper provides a review and synthesis of the vast and varied research on personal goals. A growing body of research shows that goals are best conceptualized as a distinct unit of analysis, with extensive within-person variations in both goal characteristics and attainment. In this paper, we review existing literature on personal goals, examining the process of goal pursuit from start to finish, including goal setting, goal pursuit and self-regulation, and the outcomes associated with attainment and/or failure. We also address the many aspects of personal goal pursuit that are still poorly understood, highlighting directions for future research.


2015 ◽  
pp. 347
Author(s):  
Teresa Torres Bustamante

The goal of this paper is an account of the role of tense and aspect in mirative constructions in Spanish. I propose that the past tense morphology and the imperfect/perfect morphology in Spanish miratives contribute their standard meanings to the semantics of mirativity. I define mirativity as the clash between the speaker’s previous beliefs and the current state of affairs asserted by the proposition. I propose a M operator that relates the speaker’s beliefs and the proposition by ranking the worlds in which the proposition doesn’t hold in the speaker’s previous beliefs as better ones. The past tense is interpreted outside the proposition, and constitutes the time argument of the modal base (doxastic domain). Aspect gets its usual interpretation in the proposition but also in the alternative propositions that order the worlds in the modal base. This way, differences regarding the imperfect mirative and the pluperfect one are accounted for. Finally, the paper also discusses stative miratives, which apparently challenge part of the analysis. I claim that these are not counter examples, but rather confirmation of the analysis, once we account for the interaction between miratives, statives and lifetime effects.


2019 ◽  
Vol 8 (3) ◽  
pp. 162-170 ◽  
Author(s):  
Maureen R. Weiss

The purpose of this review is to characterize major advancements in the past 40 years of research on youth sport motivation. The author focuses on this period, during which the Institute for the Study of Youth Sports, affiliated researchers, and other scholars contributed to the current state of the field. First, she traces paradigm shifts that represent changes in the philosophy and practice of science in youth sport motivation research. Second, she discusses emergent theoretical perspectives that guided empirical research and produced robust findings on predictors, mediators, and outcomes of motivation. Third, she translates these theories and associated studies to inform evidence-based best practices for youth sport programs. Finally, the author recommends that future research highlight developmental approaches, examine sport as a means of promoting physical activity, and consider multidisciplinary perspectives on conducive topics. By reflecting on paradigm shifts and research trends over time, scholars can meaningfully contribute to an increased understanding of youth sport motivation in the decades to come.


2019 ◽  
Vol 31 (2) ◽  
pp. 327-343 ◽  
Author(s):  
Yan Chi Tiffany Tivasuradej ◽  
Nam Pham

Purpose The purpose of this paper is to provide a broad preliminary overview and critical viewpoint on the current state of customer experience innovation and strategy in Thailand. Design/methodology/approach This paper outlines and critically analyses the key trends based on 15 prime instances of customer experience innovation from the past ten years in Thailand across three industries: retail, fuel service and insurance. Findings Customer experience in Thailand is still in its nascent stage. This is because firms are yet to realise their full potential as critical brand differentiators. Many Thai firms also miss collaboration opportunities with external partners when innovating customer experiences. This is despite the overwhelming contributions from local SMEs to breakthrough innovations and creativity. Consequently, many customer experience innovations in Thailand are yet to be truly memorable and unique. Originality/value This is the first paper that critically examines the trends in customer experience across the retail, fuel service and insurance. It is also the only paper that outlines strategic implications of customer experience strategies and innovations to date for Thailand. Both future research topics and managerial implications for Thai professionals are discussed in the paper.


Geosciences ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 361
Author(s):  
Aleksandra Checinska Sielaff ◽  
Stephanie A. Smith

Mars is a planet of great interest in the search for signatures of past or present life beyond Earth. The years of research, and more advanced instrumentation, have yielded a lot of evidence which may be considered by the scientific community as proof of past or present habitability of Mars. Recent discoveries including seasonal methane releases and a subglacial lake are exciting, yet challenging findings. Concurrently, laboratory and environmental studies on the limits of microbial life in extreme environments on Earth broaden our knowledge of the possibility of Mars habitability. In this review, we aim to: (1) Discuss the characteristics of the Martian surface and subsurface that may be conducive to habitability either in the past or at present; (2) discuss laboratory-based studies on Earth that provide us with discoveries on the limits of life; and (3) summarize the current state of knowledge in terms of direction for future research.


2019 ◽  
Vol 104 (9) ◽  
pp. 3779-3784 ◽  
Author(s):  
Jonathon O Russell ◽  
Christopher R Razavi ◽  
Mohammad Shaear ◽  
Lena W Chen ◽  
Andrew H Lee ◽  
...  

Abstract Context The transoral endoscopic thyroidectomy vestibular approach (TOETVA) is a recently described procedure for surgical management of select thyroid pathology that avoids a cutaneous scar. TOETVA is far from the first described remote-access approach to the thyroid. In fact, numerous such techniques have been described over the past 20 years, although none has gained widespread implementation in North America or Europe. However, with its rapid growth worldwide and excellent outcomes to date, TOETVA may succeed where these prior techniques have failed. Evidence Acquisition The English literature was reviewed using the following keywords: transoral thyroidectomy, remote-access thyroidectomy, minimally invasive thyroidectomy, and TOETVA. Because three systematic reviews of this technique were recently conducted, this manuscript does not seek to provide a fourth. Rather, we summarize salient findings from these reviews and focus on candidates for the procedure, technique-specific characteristics that have led to early success with TOETVA, and prospects for the future. Evidence Synthesis TOETVA is the only thyroidectomy approach obviating the need for a cutaneous incision, and it offers several advantages over previously described remote-access thyroidectomy techniques. These include a favorable anatomic surgical perspective, a comparatively short learning curve, no requirement for expensive instrumentation, and a broad inclusion criterion. These characteristics have facilitated the excellent surgical outcomes to date. Conclusions TOETVA is a suitable surgical option with proven safety and feasibility for a carefully selected patient population. The potential value of the procedure outside enhanced cosmesis continues to be defined.


2020 ◽  
Vol 62 (5) ◽  
pp. 503-516
Author(s):  
Emel Taban ◽  
Olatunji Oladimeji Ojo

Abstract Flexible and digital manufacturing technologies like additive manufacturing (AM) have evolved as the future of modern manufacturing with the capability of obtaining multi-dimensional components and material functionality improvement. In the past decade, the additive manufacturing of steel has advanced into an effective approach for controlling local microstructure and fabricating hybrid build with tailored performance. As an emerging technology, there are still some challenges in the additive manufacturing of steel that need to be circumvented in order to attain the full potentials of this novel technology. This review paper examines the current state of additively manufactured steel as well as the associated microstructure, mechanical properties, and corrosion of as-built steel. An insight into further and future research directions is provided.


Author(s):  
Pankaj Kamthan

The role of communication is central to any software development. The documentation forms the message carrier within the communication infrastructure of a software project. As software development processes shift from predictive to adaptive environments and serve an ever more hardware diverse demographic, new communication challenges arise. For example, an engineer may want to be able to remotely author a document in a shell environment without the need of any special purpose software, port it to different computer architectures, and provide different views of it to users without making modifications to the original. However, the current state of affairs of software documentation is inadequate to respond to such expectations. In this article, we take the position that the ability of documents to be able to communicate at all levels intrinsically depends upon their representation. The rest of the article proceeds as follows. We first outline the background necessary for later discussion. This is followed by a proposal for a quality-based framework for representing software documentation in descriptive markup and application to agile software documentation. Next, challenges and avenues for future research are outlined. Finally, concluding remarks are given.


2021 ◽  
pp. 108876792110469
Author(s):  
Lynn A. Addington

Over the past 25 years, homicide researchers have largely ignored older adults. This pattern continues even in light of the ongoing demographic shift associated with the aging baby boomer generation. This article reflects on the current state of the literature and discusses areas in need of attention. Future research needs can be categorized into substantive and methodological issues. The insights gained by exploring these topics can generate nuanced explanations for fatal violence against older adults and support future evidence-based prevention policies.


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