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1 – 10 of 187This study reviews the development of printed circuit technology from its origins before the Second World War until the present day. Various inventions appeared before the war for…
Abstract
This study reviews the development of printed circuit technology from its origins before the Second World War until the present day. Various inventions appeared before the war for producing circuits on a flat surface, but it was not until Dr Paul Eisler had the idea of utilising the long established arts of the printing industry that viable methods of production were established. Stimulated by the release of an American official secret of the use of a printed circuit in a proximity fuse, and the first Technical Symposium in 1947, government and industries researched into the best ways of producing planar circuits. Dr Eisler's etched foil method emerged as the most practical technique. The first decade of the technology was spent learning and refining print and etch techniques, during which time printed circuits gradually became accepted by the consumer industry, as well as by industry and government bodies. Most of the major advances were made during the second decade, such as plated‐through hole, multilayer and additive processes. Since then manufacturing technique has been consolidated and refined, affected by the continuing demands of the electronics industry for increasing miniaturisation and packaging densities.
This is the final part of an abridged version of the previously unpublished writings of Paul Eisler, universally acknowledged as the inventor of the printed circuit board and many…
Abstract
This is the final part of an abridged version of the previously unpublished writings of Paul Eisler, universally acknowledged as the inventor of the printed circuit board and many other technical innovations. The content of the extracts presented has concentrated mainly on Dr Eisler's efforts in the field of printed circuit technology, followed by a few details of some of his other areas of invention.
An abridged version of the previously unpublished writings of Paul Eisler, universally acknowledged as the inventor of the printed circuit board and many other technical…
Abstract
An abridged version of the previously unpublished writings of Paul Eisler, universally acknowledged as the inventor of the printed circuit board and many other technical innovations, will be presented in Circuit World in three parts. The content of the extracts will concentrate mainly on Dr Eisler's efforts in the field of printed circuit technology, followed by a few details of some of his other areas of invention.
An abridged version of the previously unpublished writings of Paul Eisler, universally acknowledged as the inventor of the printed circuit board and many other technical…
Abstract
An abridged version of the previously unpublished writings of Paul Eisler, universally acknowledged as the inventor of the printed circuit board and many other technical innovations, is being presented in Circuit World in three parts. The content of the extracts concentrates mainly on Dr Eisler's efforts in the field of printed circuit technology, followed by a few details of some of his other areas of invention.
Kirstie Petherbridge, Peter Evans and David Harrison
Many people believe that Eisler invented the printed circuit board (PCB) in the mid‐1930s, but the origins actually lie nearly before 50 years this. If this is true then who…
Abstract
Many people believe that Eisler invented the printed circuit board (PCB) in the mid‐1930s, but the origins actually lie nearly before 50 years this. If this is true then who invented the PCB? This review offers an alternative view of the history of the PCB including early developments and contributions from the world of art and printing, through innovations in science and engineering to the key developments of the modern electronics industry.
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he development of printed circuit technology is almost inseparable from the development of materials. Copper clad laminates could be said to have started with the discovery of…
Abstract
he development of printed circuit technology is almost inseparable from the development of materials. Copper clad laminates could be said to have started with the discovery of phenolic resins by Dr Leo Baekeland in 1909. He found that by using catalysts he could control the speed and extent of the reaction of phenol with formaldehyde, suspending the reaction at any time to add reinforcements. Using resins in a liquid form he was able to combine them with wood cloth, paper or fibre to build an insulating material.
The purpose of this paper is to establish a conceptual connection between gender-based violence (GBV) and genocide. Victims of gendercide, such as femicide and transicide, should…
Abstract
Purpose
The purpose of this paper is to establish a conceptual connection between gender-based violence (GBV) and genocide. Victims of gendercide, such as femicide and transicide, should be eligible for protections assigned to victims of genocide, including the Responsibility to Protect (R2P).
Design/methodology/approach
This study examines genocide, gendercide, femicide, transicide and the R2P doctrine to formulate a platform of engagement from which to argue the alignment and congruence of genocide with gendercide. Using a content analysis of the United Nations High Commission for Refugees definition of GBV, and Article II of the Genocide Convention (GC) five “directive” facets are examined, namely, identity, physical violence, psychological violence, oppressive violence and repressive violence.
Findings
Expressions of physical violence, psychological violence, oppressive violence and repressive violence reflected similarity, whereas the GCs omit sex and gender as facets of identity group inclusion. The only variation is the encapsulation of identity factors included in the acts of harm.
Practical implications
The elevation of gendercide to the status of genocide would permit us the leverage to make it not only illegal to permit gendercide – internationally or in-country – but make it illegal not to intervene, too.
Social implications
Deliberate harm based on sex and gender are crimes against people because of their real or perceived group membership, and as such, should be included in genocide theory and prevention.
Originality/value
This study explores a new conceptual basis for addressing gendercidal violence nationally to include sex and gender victim groups typically excluded from formal parameters of inclusion and address due to limitations in Article II. The analysis of genocide alongside GBV may inform scholars and activists in the aim to end gendered violence.
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Adam J. Vanhove, Tiffany Brutus and Kristin A. Sowden
In recent years, a wide range of psychosocial health interventions have been implemented among military service members and their families. However, there are questions over the…
Abstract
In recent years, a wide range of psychosocial health interventions have been implemented among military service members and their families. However, there are questions over the evaluative rigor of these interventions. We conducted a systematic review of this literature, rating each relevant study (k = 111) on five evaluative rigor scales (type of control group, approach to participant assignment, outcome quality, number of measurement time points, and follow-up distality). The most frequently coded values on three of the five scales (control group type, participant assignment, and follow-up distality) were those indicating the lowest level of operationally defined rigor. Logistic regression results indicate that the evaluative rigor of intervention studies has largely remained consistent over time, with exceptions indicating that rigor has decreased. Analyses among seven military sub-populations indicate that interventions conducted among soldiers completing basic training, soldiers returning from combat deployment, and combat veterans have had, on average, the greatest evaluative rigor. However, variability in mean scores across evaluative rigor scales within sub-populations highlights the unique methodological hurdles common to different military settings. Recommendations for better standardizing the intervention evaluation process are discussed.
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Abhishek Pathak, Carlos Velasco and Gemma Anne Calvert
With trade amounting to more than US$400bn, counterfeiting is already affecting many successful brands. Often, consumers are deceived into buying fake products due to the visual…
Abstract
Purpose
With trade amounting to more than US$400bn, counterfeiting is already affecting many successful brands. Often, consumers are deceived into buying fake products due to the visual similarity between fake and original brand logos. This paper aims to explore the varying forms of fraudulent imitation of original brand logotypes (operationalized at the level of logotype transposition), which can aid in the detection of a counterfeit brand.
Design/methodology/approach
Across two studies, this research tested how well consumers can differentiate counterfeit from original logos of well-known brands both explicitly and implicitly. Seven popular brand logos were altered to create different levels of visual dissimilarity and participants were required to discriminate the logos as fake or genuine.
Findings
Results demonstrate that although consumers can explicitly discriminate fake logos with a high degree of accuracy, the same is not true under conditions in which logos are presented very briefly (tapping participants’ implicit or automatic logo recognition capabilities), except when the first and last letters of the logotype are substituted.
Originality/value
A large body of research on counterfeit trade focuses on the individual or cross-cultural differences behind the prevalence of counterfeit trade. There is limited research exploring the ability of a consumer to correctly identify a fake logo, based on its varying similarity with the original logotype; this paper addresses this gap. Given that many of the purchase decisions are often made automatically, identifying key implicit differentiators that can help a consumer recognize a fake logo should be informative to both practitioners and academics.
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The purpose of this paper is to discuss the transforming effect of pursuing person centered ethnography using contemporary reflexive methods and a cultural traditions model on a…
Abstract
Purpose
The purpose of this paper is to discuss the transforming effect of pursuing person centered ethnography using contemporary reflexive methods and a cultural traditions model on a researcher in late life. It attempts to show the usefulness of life history research as a lens through which to examine the complex ways people age. It adds to literature dealing with ethnographic studies of aging women and demonstrates personal narrative as a way to convey information. Lastly it demonstrates the value of studies pursued by researchers in old age, and illuminates aspects of ethnographic work when women interview women.
Design/methodology/approach
Using a journey format, the paper uses personal narrative as a way to achieve its goals. The personal account is complemented by noting other ethnographic studies that have contributed to age studies literature, and it draws attention to the value of reflexivity in good ethnographic work as proposed by anthropologists Barbara Myerhoff and John Caughey.
Findings
The paper points toward research institutions who study aging valuing ethnographic findings and making use of researchers in old age to engage in ethnographic studies. It points to the possibility that elders engaged in such research may strengthen their sense of self and empower them as they make a contribution to age studies.
Research limitations/implications
This paper deals with the transformative power of engaging in reflexive life history research, especially as it is done by an ethnographer in late life. This freeing from customary cultural ways of thinking may be as beneficial to the researcher as life review or reminiscence. This should be explored further.
Originality/value
The paper points to the idea, implicit not explicit, that an elder who engages in reflexive life history research that involves doing a self-ethnography, can benefit in ways similar to having engaged in life review or reminiscence. This is original.
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