Dirac’s conception of the magnetic monopole, and its modern avatars

Conclusions Dirac’s philosophy of mathematical elegance led to his pioneering work on magnetic monopoles and inspired a large number of subsequent developments. It remains true that magnetic monopoles have never been detected, despite numerous attempts, but after all it was Dirac who once remarked, “It is more important to have beauty in one’s equations than to have them fit experiment”. One might therefore assume that he was more than satisfied with the impact of this work. This is not quite the case. Towards the end of his life, the complete lack of experimental evidence for magnetic monopoles began to weigh on him. In 1981, a year short of his 80th birthday, he was invited to Trieste for a conference to commemorate the 50th anniversary of his monopole paper. He declined the invitation due to the strain of travelling, but sent a letter of thanks to Abdus Salam, the Nobel Laureate and Director of the Centre at Trieste. In this letter, Dirac wrote: “I am inclined now to believe that monopoles do not exist. So many years have gone by without any encouragement from the experimental side.” Dirac passed away nearly two decades ago, but it remains to be determined who was right about monopoles: Dirac in 1931, or Dirac in 1981.     

Sci‐Hub: The new and ultimate disruptor? View from the front

The Harbinger project was a 3‐year‐long international study of the changing attitudes and behaviours of early career researchers (ECRs). One of the aims of the project was to discover if ECRs were adopting disrupting platforms that, legitimately or illegitimately, promote openness and sharing. It has been alleged that such an adoption appeals to them as Millennials. More than 100 ECRs from seven countries were questioned annually, and questions about Sc‐Hub were raised as part of discussions about discovery and access. Interview data were supplemented by desk research and Google Trends statistics. It was found that Sci‐Hub use was increasing and that a quarter of the ECRs now use it, with French ECRs being the biggest users. However, Sci‐Hub is making little headway with ECRs from the UK, USA, Malaysia, and China, although in China's case, this can be explained by it being banned and the country having its own equivalent, www.91lib.com . Sci‐Hub is used as much for convenience as necessity; use is not connected to the strength of library provision and and it has been suggested that it represents a bigger threat to publishers than ResearchGate, whose star might be waning.     

Families made by science. Arnold Gesell and the technologies of modern child adoption

This essay considers the effort to transform child adoption into a modern scientific enterprise during the first half of the twentieth century via a case study of Arnold Gesell (1880-1961), a Yale developmentalist well known for his studies of child growth and the applied technologies that emerged from them: normative scales promising to measure and predict development. Scientific adoption was a central aspiration for many human scientists, helping professionals, and state regulators. They aimed to reduce the numerous hazards presumed to be inherent in adopting children, especially infants, who were not one's "own." By importing insights and techniques drawn from the world of science into the practical world of family formation, scientific adoption stood for kinship by design. This case study explores one point of intersection between the history of science and the history of social welfare and social policy, simultaneously illustrating the cultural progress and power of scientific authority and the numerous obstacles to its practical realization.     

The changed – and changing – landscape of serials publishing: Review of the literature on emerging models

This article presents an up‐to‐date portrayal of the greatly changed landscape of scholarly journal publishing and identifies the emerging trends characterizing it. We consider the attributes, novelty, and disruptive potential of different models, which range from improvements to the extant model to attempts at reconfiguration and transformation. We propose that journal transition can be seen as falling into three categories. The first is enhanced models of the traditional scholarly journal, which typically afford enriched functionality that breaks the bonds of the printed page whilst otherwise remaining wholly traditional in their offerings. The second category is innovative models of the traditional scholarly journal, which aim at supporting the journal in performing its traditional roles through convention‐altering ways. The third category is the possible alternatives to the traditional journal, which represent a move towards alternative modes of knowledge dissemination. This review shows that each of the models identified makes contributions to enriching the reporting and showcasing of scholarly output. They also make it more effective and more efficient. However, we conclude that none of the possible alternatives being discussed can serve as a full‐fledged alternative to the journal.     

Adapting the Assessing British Sign Language Development: Receptive Skills Test into American sign language

Signed languages continue to be a key element of deaf education programs that incorporate a bilingual approach to teaching and learning. In order to monitor the success of bilingual deaf education programs, and in particular to monitor the progress of children acquiring signed language, it is essential to develop an assessment tool of signed language skills. Although researchers have developed some checklists and experimental tests related to American Sign Language (ASL) assessment, at this time a standardized measure of ASL does not exist. There have been tests developed in other signed languages, for example, British Sign Language, that can serve as models in this area. The purpose of this study was to adapt the Assessing British Sign Language Development: Receptive Skills Test for use in ASL in order to begin the process of developing a standardized measure of ASL skills. The results suggest that collaboration between researchers in different signed languages can provide a valuable contribution toward filling the gap in the area of signed language assessment.     

The impact of the pandemic on early career researchers' work-life and scholarly communications: A quantitative aerial analysis

After two-years of repeat interviewing early career sciences/social sciences researchers from around the world about their work life and scholarly communications in pandemic-times, the Harbingers-2 project is in a position to release quantitative data on the pandemic's overall impact. The data comes from around 50 questions asked in the third and final round of interviews with 147 early career researchers (ECRs), which had a codifiable element to them (such as yes, no, do not know). The 19 scholarly topics covered include: pandemic-related research; research funding; changes to the workplace/working from home; pandemic-incurred stress and anxiety; teaching; employment security; career progression; mentoring; assessment (including metrics); collaboration; searching/finding information; ethics; networking; informal communication; publishing; sharing; pre-prints; outreach; and scholarly transformations. The main findings are that in six broad aspects of ECRs' work-life and scholarly behaviour, more than 50% of ECRs were impacted by the pandemic, with remote teaching having the greatest impact. By way of comparison, in another six aspects there was little change, least of all when it came to sharing activities. Among the countries studied, Malaysia stood out as being the most impacted, and of the disciplines it was the medical sciences and the soft social sciences most impacted.     

Locke,Intellectual Property Rights,and the Information Commons

This paper examines the question whether, and to what extent, John Locke’s classic theory of property can be applied to the current debate involving intellectual property rights (IPRs) and the information commons. Organized into four main sections, Section 1 includes a brief exposition of Locke’s arguments for the just appropriation of physical objects and tangible property. In Section 2, I consider some challenges involved in extending Locke’s labor theory of property to the debate about IPRs and digital information. In Section 3, it is argued that even if the labor analogy breaks down, we should not necessarily infer that Locke’s theory has no relevance for the contemporary debate involving IPRs and the information commons. Alternatively, I argue that much of what Locke has to say about the kinds of considerations that ought to be accorded to the physical commons when appropriating objects from it – especially his proviso requiring that “enough and as good” be left for others – can also be applied to appropriations involving the information commons. Based on my reading of Locke’s proviso, I further argue that Locke would presume in favor of the information commons when competing interests (involving the rights of individual appropriators and the preservation of the commons) are at stake. In this sense, I believe that Locke offers us an adjudicative principle for evaluating the claims advanced by rival interests in the contemporary debate about IPRs and the information commons. In Section 4, I apply Locke’s proviso in my analysis of two recent copyright laws: the Copyright Term Extension Act (CTEA), and the Digital Millennium Copyright Act (DMCA). I then argue that both laws violate the spirit of Locke’s proviso because they unfairly restrict the access that ordinary individuals have previously had to resources that comprise the information commons. Noting that Locke would not altogether reject copyright protection for IPRs, I conclude that Locke’s classic property theory provides a useful mechanism for adjudicating between claims about how best to ensure that individuals will be able to continue to access information in digitized form, while at the same time also allowing for that information to enjoy some form of legal protection.     

Effect of antioxidants and antibiotics on levels of seminal oxidative stress in leukocytospermic infertile men

Defective sperm function is the most common cause of infertility. A prospective study was carried out to correlate the concentration of nitrite (the stable metabolite of nitric oxide) in seminal plasma with leukocytospermia, and sperm membrane integrity. Total Fifty-seven normozoospermic subjects with and without leukocytospermia visiting the Infertility clinic at KH and MRC, Karad, were included in the present study. Semen samples were checked for sperm concentration, total sperm count, sperm motility, seminal leukocyte concentration and sperm membrane integrity as Hypoosmotic Swelling Test. Similarly the concentration of nitrite in seminal plasma was measured by Griess reaction and total antioxidant power measured as ferric reducing ability of plasma. The concentration of nitrite in seminal plasma was found to be raised with significantly increased leukocyte concentration in semen. Also significantly lowered levels of total antioxidant power along with defective sperm function was observed. Our results suggest that supplementary treatment of antioxidants with antibiotic for leukocytospermic infertile male patients may improve the sperm membrane integrity.     

Fetal lead exposure: Encephalopathy in a child

It is well known that lead exposure in the early period of pre pregnancy and antenatal life leads to serious health complications. In this case report, a five month old child who was suffering from encephalopathy was finally confirmed a victim of lead exposure, the source being the environment and the family. We report this case with complete clinical investigation including blood lead analysis. This case report highlights the various ways in which lead may accumulate in the body. It is also aimed at increasing awareness regarding the pathogenesis and clinical manifestations of lead toxicity. The literature survey done reveals that this is the youngest age at which lead toxicity has been documented in India.