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Ultrasound is a well-established technology in medical science, though many of the conventional measurement systems (hydrophones and radiation force balances [RFBs]) often lack accuracy and tend to be expensive. This is a significant problem where sensors must be considered to be “disposable” because they inevitably come into contact with biological fluids and expense increases dramatically in cases where a large number of sensors in array form are required. This is inevitably the case where ultrasound is to be used for the in vitro growth stimulation of a large plurality of biological samples in tissue engineering. Traditionally only a single excitation frequency is used (typically 1.5 MHz), but future research demands a larger choice of wavelengths for which a single broadband measurement transducer is desirable. Furthermore, because of implementation conditions there can also be large discrepancies between measurements. The purpose of this paper deals with a very cost-effective alternative to expensive RFBs and hydrophones.

Utilization of cost-effective piezoelectric elements as broadband sensors.

Very effective results with equivalent (if not better) accuracy than expensive alternatives.

This paper concentrates on how very cost-effective piezoelectric ultrasound transducers can be implemented as sensors for ultrasound power measurements with accuracy as good, if not better than those achievable using radiation force balances or hydrophones.

Flight control mechanism for an airplane, comprising a pivotally supported control surface with a hinged boost tab thereon, means for swinging the control surface for airplane manoeuvring purposes, comprising an element mounted to rotate about an axis in coaxial relation with the pivot axis of the control surface, and an elongated torsional spring in concentric relation with said pivot axis of the control surface, having one end thereof fixedly connected to the element and its other end fixedly connected to said control surface, and adapted when the element is rotated while the control surface is subjected to low air resistance to swing said control surface conjointly with the element and further adapted when the element is rotated while the control surface is subjected to high air resistance to permit said element to rotate relatively to the control surface, and means operative in response to rotation of the element relatively to the control surface to tilt the tab into a position wherein it serves to assist in swinging the control surface.

Despite its prevalence in organizations, passive leadership has received scant research attention compared to more active forms of leadership. The purpose of this paper is to demonstrate the significant impact that passive leadership can have on two core constructs in the organizational sciences – trust and perceptions of fairness.

Data were collected through self-report questionnaires (n=192), using a three-wave survey methodology in order to provide temporal separation between the predictor, mediator, and outcome variables.

Passive leadership was negatively associated with cognition-based trust. Further, passive leadership exerted a negative indirect effect on employee perceptions of justice, through cognition-based trust.

Although this research was explicitly interested in employee perceptions, the use of self-report measures may be considered a study limitation.

This study underscores that passive leadership may represent a serious impediment to effective supervisor-employee relations. Employees do not trust supervisors who display a passive leadership style and a lack of trust can lead employees to perceive the supervisor as unfair.

This study contributes new insights into the psychological effects of passive leadership behavior by demonstrating the potential role of passive leadership in shaping employee perceptions of trust and fairness.

This paper aims to develop an original Café Delphi historical method to research women's individual and collective experiences of sex, sexuality and sexism in public relations (PR) in 1990s’ Britain.

An original Café Delphi historical method is shaped by an interpretive paradigm providing a conceptual framework to model sex, sexuality and sexism. This approaches history as a social science drawing on hermeneutic phenomenology, reflexivity and ethics of care. A case study, employing oral history and participatory action research (PAR), is used to develop and test the practicality of the original Café Delphi historical method to research women's individual and collective experiences of PR in 1990s’ Britain.

Three main findings are identified. (1) Developing a new method is complex, time-consuming and surfaces practical problems; however, the Café Delphi historical method is a viable way to explore individual and collective experiences. (2) Undertaking methodological innovation and innovating research methods involves action learning and requires agility, reflexivity and ability to navigate messiness and order. (3) Testing the multiphase mixed method study revealed its power and potential as an ethical and collaborative co-research approach.

This study expands the repertoire of research methods in PR historiography and provides a new approach to capture collective as well as individual experiences. This study develops a feminine analytic tool employing metamodern oscillation to connect past, present and future.

Adaptive reuse of older commercial buildings, particularly in countries such as the USA, has been regarded by building owners and developers as uneconomic. Retention of older commercial buildings has commonly been regarded as a barrier to progress and a hindrance to the regeneration of older urban areas. This paper aims to examine the program and legislation that is adopted to encourage the adaptive reuse of commercial buildings in the downtown area of Los Angeles (LA) in the USA, as it is considered to be an exemplar example of how a regeneration strategy makes a contribution to sustainability. It seeks to assess the effectiveness of adaptive reuse of redundant buildings as a commercially viable and effective strategy for urban regeneration that meets the criteria of sustainability.

A case example is used to examine the underlying factors that have contributed to LA being an exemplar for adaptive re‐use and its contribution to sustainability.

Urban regeneration requires a vision and a continued commitment to sustainability. In the case of LA, there is clearly evidence of a commitment to sustainability through the implementation of an adaptive re‐use program. A key to this strategy's success is the offering of incentives. Such incentives are required to entice investment and involvement in the program. The ability to make commercial buildings attractive to developers as viable reuse projects relied heavily on the use of legislation that reduces code and zoning requirements and offers substantial financial incentives in the form of tax concessions. The advantages of adaptive reuse in terms of sustainability appear to outweigh the advantages of demolition and new development as experienced in LA. Certainly in terms of urban regeneration the adaptive reuse program in the downtown area appears to have been something of a catalyst in prompting investment in major developments.

The sharing of experiences is pivotal to learning. Such situated learning can provide clients, and industry practitioners with insights about how adaptive re‐use can be used to promote sustainable outcomes. The experiences of LA emphasize the need to consider emphasis on not only environmental and economic benefits but also issues of social equity such as low cost housing for lower income groups. Generally, the objectives of reusing old buildings appear to coincide with many of the desired outcomes of sustainability, but further research is needed to assess the viability of adaptive reuse as a strategy for urban regeneration and sustainability.

Children are becoming heavy users of communication and information technologies from an early age. These technologies carry risks to which children may be exposed. In collaboration with the Israel Ministry of Education (IME), the authors launched a week-long safe online awareness program for school children in 257 elementary and middle schools in Israel. Each class independently composed a safe and ethical code of online behavior following two classroom debate sessions. The purpose of this study was to analyze these codes and learn how school children perceive and understand the proper use of the network using thematic analysis.

A total of 8,181 students between the ages of 8 and 14 years in 303 classes from 257 schools participated in the program. These classes composed 303 ethical codes, which were decomposed into 2,201 elements (phrases, sentences, or paragraphs). Using mixed-methods research combining quantitative and qualitative methodologies, the elements of the ethical codes were analyzed, interpreted, and classified to identify the dominant themes and discourses used by the students when addressing issues related to safe online use.

Findings indicate that Israeli students are aware of the dangers and risks of the internet, and these concerns are reflected in their own ethical codes. The students discouraged online self-exposure and encouraged precautions and wariness towards members of out-groups. The themes included sentences which asked for responsible, appropriate, and lawful use, expressed concern about privacy issues, and stated the need for adult involvement. Most of them reflected an “us against them (strangers)” perspective.

The current study presents an innovative “bottom-up” program based on wisdom of the crowd approach, that can be implemented in schools internationally in order to encourage reflexivity and teach children the necessary skills for safe online experiences. In addition, this study analyses the school children’s own views of the dangers of social media and learn about their perspective and understanding of internet use.

A lot has been discussed about Peter Drucker, and there exists significant written content admiring or criticizing his work as a management writer. This paper aims to offer a holistic analysis of Peter Drucker’s written contributions to better understand his views of society, government and organizations of all kinds.

Many have written about Peter Drucker and his considerable impact on the practical and philosophical foundations of modern management. Yet, there has been no systematic scholarly evaluation of Drucker as a writer, although many have praised and criticized his written work on management. In this study, the authors offer an analysis of Peter Drucker’s written contributions to evaluate his central contributions, as well as how he communicated his ideas on society and management.

A comprehensive analysis of Drucker’s word usage and writing style throughout his writing career forms an evidence-based approach to better understand his viewpoints and objectively evaluate the criticisms surrounding his work.

This research contributes to a better understanding of Peter Drucker’s central contributions, concerns and sentiments, as it relates to not only business management but also to his views of society, government and organizations of all kinds. A reconsideration of Drucker as a writer presents possible implications for the practice of management.

The purpose of this study is to mirror the late guitarist Peter Green’s life experiences through insights from Andrew Voyce, who recovered from mental illness, and expertise from Peter Bryngelsson, a Swedish professional musician and author.

The authors used a mixed method of collaborative autoethnography, psychobiography and digital team ethnography.

Despite having not previously attracted academic interest, Peter Green’s experiences of mental health problems and his return to recording and performance provide a rich data source when mirrored and compared to the lives and experiences of Andrew Voyce and Peter Bryngelsson.

The main limitation of this piece of work is that Peter Green died in 2020. During the process of writing, the authors have had to follow different, mostly unacademic, sources that have described various parts of Peter Green’s life. The authors have given examples and drawn conclusions from their own lives as well as from academic sources, which they have found appropriate.

Both Andrew Voyce and Peter Bryngelsson’s stories would be helpful when it comes to a deeper understanding as to why Peter Green “took a left turn”, i.e., turned his back on an accepted lifestyle.

Acid casualty is a problem connected to both mental distress and to the music industry. Peter Bryngelsson’s story tells us that one can remain sane and drug free and still be an influential and creative musician.

The analysis has brought together two stories of mental distress in combination with insights.