Karl Popper,Forensic Science,and Nested Codes

This paper utilizes the framework of Karl Popper’s 3-world ontology to make the case that forensic science is a specialized coding system that establishes meaningful connections between the world of biology (world 1) and the world of human society (world 3). Forensic science is a cross-disciplinary endeavor that uses scientific methods to determine what transpired in a crime so the legal system can determine how to prosecute the offender(s). On a Popperian analysis of forensic science, world 1 consists of evidence gathered at the crime scene, which enables investigators to develop a detailed reconstruction of the incident for consideration under the legal and ethical codes of society, which are products of world 3. Understanding forensic science in this way serves two purposes: first, it extends Marcello Barbieri’s code biology into the realm of philosophical considerations in science, law and ethics; and second, it situates forensic science within the larger context of debates in contemporary philosophy of science.     

Are our universities producing too many PhDs?

As we enter the 21st century, we face a world that will be increasingly dominated by science and technology. More and more jobs will require many of the analytical and thinking skills of a scientist. Citizens everywhere must also become better able to evaluate and understand the judgements of scientific and technical experts when making personal and community decisions. To spread the values and knowledge of science much more widely throughout our societies, we must also spread scientists. Therefore, advanced training in science and the acquisition of important skills through an extensive exposure to research are valuable tools for a wide variety of occupations.     

Are our universities producing too many PhDs?

As we enter the 21st century, we face a world that will be increasingly dominated by science and technology. More and more jobs will require many of the analytical and thinking skills of a scientist. Citizens everywhere must also become better able to evaluate and understand the judgements of scientific and technical experts when making personal and community decisions. To spread the values and knowledge of science much more widely throughout our societies, we must also spread scientists. Therefore, advanced training in science and the acquisition of important skills through an extensive exposure to research are valuable tools for a wide variety of occupations.     

Are our universities producing too many PhDs?

As we enter the 21st century, we face a world that will be increasingly dominated by science and technology. More and more jobs will require many of the analytical and thinking skills of a scientist. Citizens everywhere must also become better able to evaluate and understand the judgements of scientific and technical experts when making personal and community decisions. To spread the values and knowledge of science much more widely throughout our societies, we must also spread scientists. Therefore, advanced training in science and the acquisition of important skills through an extensive exposure to research are valuable tools for a wide variety of occupations.     

Science Educational Outreach Programs That Benefit Students and Scientists

Both scientists and the public would benefit from improved communication of basic scientific research and from integrating scientists into education outreach, but opportunities to support these efforts are limited. We have developed two low-cost programs—"Present Your PhD Thesis to a 12-Year-Old" and "Shadow a Scientist”—that combine training in science communication with outreach to area middle schools. We assessed the outcomes of these programs and found a 2-fold benefit: scientists improve their communication skills by explaining basic science research to a general audience, and students'' enthusiasm for science and their scientific knowledge are increased. Here we present details about both programs, along with our assessment of them, and discuss the feasibility of exporting these programs to other universities.     

Science, politics, and public policy: a legislator's perspective.

Making judgments on priorities in funding is a politican's most difficult task. Scientific information is often necessary to make those judgments, so that good communication between scientist and politican is important. This is, however, difficult because the politician's usual training and working habits are different from those of the scientist. Messages to politicans must therefore be couched differently than in communications between scientists. These messages are more effective when they are concerned with the public need than when they plead for special interests. These messages are most effective when directed to those politicians serving on committees that must deal with the specified issue because Congress makes most political decisions through these committees. Committee members and committee staff members turn to scientists whom they know personally, so that getting to know the members of Congress and the key staff members of committees facilitates communication between science and public policy.     

Philip R. White (1901–1968)—a tribute

The groundbreaking research carried out by Philip R. White in the 1930s and 1940s played a critical early role in the development of modern plant biotechnology and the production of biotech crops. He gained instant fame and became a historical figure early in his career by becoming the first person to attain unlimited growth of cultured plant tissues. White was one of the best known and most influential figures of his generation in plant cell culture research. His tireless and lifelong efforts to promote the use of plant cell culture systems inspired a generation of scientists and stimulated much scientific activity. White was not only a brilliant and visionary scientist but also a highly principled man who spoke courageously about the great moral and political issues of his day. He was admired as much for his science as for his humanity. His belief that plant cell culture research was not well represented at national and international meetings, and his deeply held conviction that science had to be international and without borders in order to be of service to humankind led to the founding of the International Association for Plant Biotechnology in 1963, currently the largest forum for the international plant biotechnology community. This tribute honors and celebrates Philip R. White for his inspiring science, for his kind and generous mentoring of young scientists, for his advocacy of plant cell culture research and its applications, for his promotion of international scientific exchange and cooperation, and for his leadership in the founding of the International Association for Plant Biotechnology.     

Organotherapy and the emergence of reproductive endocrinology

Conclusions Early scientific investigation of the reproductive process was neither a cause nor a direct result of changing social attitudes toward sex. It was instead part of the continuing search, initiated in the 1890s, to discover internal secretions that might be isolated and prove useful in therapy. Laboratory scientists, nonetheless, were among the many groups altering understanding of human sexual physiology in the first quarter of this century. The new data they generated regarding the dependence of human sexuality and fertility on chemical substances elaborated by the ovaries and testes became part of the evidence which hastened that quite tortuous transformation called the sexual revolution.Increasingly, as social reformers demanded more information about human reproduction, scientists were asked to provide it, and scientific concerns were shaped in the process. In the 1920s, especially in the United States, studies of the physiology of reproduction began to receive financial backing from social reformers. This was because for many, contraception had become a fact of life. Expression rather than repression of sexuality was accepted as being necessary to the stability of the fundamental social unit, the family. Theoretical and practical incentives for continued study of the reproductive process could thus be joined in common effort. This convergence of goals occurred just as the gonadal hormones were being isolated. The 1920s, therefore, mark an important juncture in the congruence of interests represented by theoretical science on the one hand and expressed social needs on the other.As a result of this convergence of interests and goals, physiologists gained a new realm of influence, claiming authoritative knowledge over a subject which once had been allocated to the priest and then, by the mid-nineteenth century, transferred to the physician. Since that formative period other research scientists, such as Alfred Kinsey and, more recently, William Masters and Virginia Johnson, have explored that niche and applied the scientific method to study of behavioral and physiological aspects of the human sexual response. They have been beset by many of the same tactical issues that confronted the earliest investigators of reproductive physiology. The definition, specification, and measurement of phenomena relating to sexual and reproductive activity have been as inherently difficult as they have been taboo.⁷⁹ Traditional resistance to scientific study of the reproductive process was overcome in the early twentieth century by the expectation that this particular line of inquiry would lead to understanding and therefore medical control of the complex of disorders—physiological, psychological, and social — associated with the generative glands. Early investigators, particularly in Britain, did not wish to be social reformers. Especially in the 1910s such a stance would have threatened their credibility in a field determined to establish itself as a theoretical science. Once scientific progress was assured, as it was from about 1920, new problems opened for investigation and began to be motivated by social needs as well as by the concerns of a rapidly developing science. Especially in the United States new resources encouraged this work, allowing development of the specialized focus on gonadal hormones represented by the emerging field of reproductive endocrinology.     

In the trenches: lessons for scientists from California's Proposition 71 campaign

I describe a number of valuable lessons I learned from participating in California's Proposition 71 effort about the role that scientists and rigorous scientific advice can play in a public political process. I describe how scientists can provide valuable information and advice and how they can also gain a great deal from the experience that is valuable to a practicing research scientist. Finally, I argue that in the future, building similar broad coalitions to support biomedical and other areas of scientific research will be essential to protect publicly funded science. Thus, a key lesson from the Proposition 71 experience is that engagement of scientists with diverse nonscientific groups can make a big difference and that scientists must actively engage with the public in the future if we are to contribute robustly to the medical and economic health of our communities.     

What have we learned from the dead? A compilation of three years of cooperation between entomologists and crime scene investigators in Southern Brazil

With homicide rates higher than the world average, Brazil stands out as one of the most violent countries worldwide. Time of death estimation based solely on body changes can be biased or inaccurate; forensic entomology can play a determinant role in such cases. Accurate knowledge of necrophilous fauna is essential to validate experimental data and allows for the application of entomological evidence in forensic investigations, which benefits scientists, investigators, and society in general. Entomological evidence from Curitiba and 22 nearby cities were collected by crime scene investigators from the Scientific Police of Paraná. The corpses were found in diverse environments and specimens from each species were collected from all life stages. We present data from 25 cases from 2011 to 2014, including associated species, new records, and comparisons between existing experimental data and data from species collected in the cases presented. We identified 23 total species, of which eight species of Coleoptera and two species of Diptera have not previously been recorded on corpses. In all cases, Calliphoridae (76%) and Silphidae (48%) were the most numerous families collected. Working together with the scientific police gave us insight into which species lacked detailed records and enabled us to collaboratively focus on resolving deficits in our knowledge of necrophagous insects.     

Fixed-bin analysis for statistical evaluation of continuous distributions of allelic data from VNTR loci, for use in forensic comparisons.

The detection of DNA polymorphisms by RFLP analysis is having a major impact on identity testing in forensic science. At present, this approach is the best effort a forensic scientist can make to exclude an individual who has been falsely associated with an evidentiary sample found at a crime scene. When an analysis fails to exclude a suspect as a potential contributor of an evidentiary sample, a means should be provided to assess suitable weight to the putative match. Most important, the statistical analysis should not place undue weight on a genetic profile derived from an unknown sample that is attributed to an accused individual. The method must allow for limitations in conventional agarose-submarine-gel electrophoresis and Southern blotting procedure, limited sample population data, possible subpopulation differences, and potential sampling error. A conservative statistical method was developed based on arbitrarily defined fixed bins. This approach permits classification of continuous allelic data, provides for a simple and portable data-base system, and is unlikely to underestimate the frequency of occurrence of a set of alleles. This will help ensure that undue weight is not placed on a sample attributed to an accused individual.     

The model of development of science by the example of limnology

Limnology--the science about lakes is the young and relatively closed area of studies; its existence is owing to several hundreds of scientists. The International Society of Limnologists holds its meetings since 1922. We used materials of these meetings to find out the main stages of development of this science; among these stages there were both fast and relatively calm periods. Based on analysis of these data, we constructed a model of development of the science, the same data being used for tuning and verification of the model. We have suggested that the main regularities and of development of limnology can be extrapolated to other sciences. The main "acting person" in the model is population of scientists. Each scientist, with some probability, can propose new ideas as well as use in his elaborations some particular complex of the already accumulated knowledge and ideas. The model also takes into consideration how the scientific information is spreading, specifically some individual peculiarities of model scientists, such as age, experience, communicability. After the model parameters had been chosen in such a way that is described adequately the development of limnology, we performed a series of experiments by changing some of the characteristics and obtained rather unexpected results published preliminary in the short work (Levchenko V. F and Menshutkin V. V. Int. J. Comp. Anticip. Syst., 2008, vol. 22, p. 63-75) and discussed here in the greater detail. It is revealed, that the development of science is passing irregularly and sharply decelerated at low level of scientists communication and absence of scientific schools, and that the age of "scientific youth" of scientist begins usually only after 40 years.     

Reduction through education: the insight of a trainer

One of the articles contained within European Council Directive 86/609/EEC states that "Persons who carry out experiments or take part in them, and persons who take care of animals used for experiments, including duties of a supervisory nature, shall have appropriate training". In effect, this article stipulates that only competent individuals are allowed to work with laboratory animals. At least three groups of individuals can be identified with different responsibilities toward experimental animals: animal technicians, scientists, and veterinarians/animal welfare officers. The responsibilities and duties of the individuals within each of these categories differ. This paper focuses on the training of scientists. The scientist designs, and often also performs, animal experiments. Therefore, scientists must be educated to develop an attitude of respect toward laboratory animals, and must be trained so that, if an experiment must be performed with animals, it is designed according to the highest possible scientific and ethical standards. In The Netherlands, the law stipulates that scientists intending to work with animals must have completed a course in laboratory animal science. This compulsory course started in 1986. The Department of Laboratory Animal Science at Utrecht University is responsible for the national coordination of this course. Participants must have an academic degree (at the level of MSc) in one of the biomedical sciences, such as biology, medicine or veterinary medicine. Although the course is an intensive 3-week, 120-hour long course, which covers both technical and ethical aspects of laboratory animal experimentation, it cannot provide full competence. It is designed to provide sufficient basic training and knowledge to enable students to design animal experiments, and to develop an attitude that will be conducive to the implementation of the Three Rs. However, full competence will always require further training that can only be acquired as a result of practical experience gained while working in the field of laboratory animal research. Evaluations subsequent to the course have revealed that more than 98% of the students regard the course as indispensable for all scientists working in a research area where animal experiments are performed. They agree that the course not only contributes to the quality of experiments and to the welfare of animals, but also to a decrease in the number of animals used in experiments.     

Rigorous Training of Dogs Leads to High Accuracy in Human Scent Matching-To-Sample Performance

Human scent identification is based on a matching-to-sample task in which trained dogs are required to compare a scent sample collected from an object found at a crime scene to that of a suspect. Based on dogs’ greater olfactory ability to detect and process odours, this method has been used in forensic investigations to identify the odour of a suspect at a crime scene. The excellent reliability and reproducibility of the method largely depend on rigor in dog training. The present study describes the various steps of training that lead to high sensitivity scores, with dogs matching samples with 90% efficiency when the complexity of the scents presented during the task in the sample is similar to that presented in the in lineups, and specificity reaching a ceiling, with no false alarms in human scent matching-to-sample tasks. This high level of accuracy ensures reliable results in judicial human scent identification tests. Also, our data should convince law enforcement authorities to use these results as official forensic evidence when dogs are trained appropriately.     

Citizen Science

Citizen science Citizen science is performed on a honorary basis. Citizen scientists (”Citizen Science proper“) have no professional employment in the relevant field of research and differ very much in their educational background, specific knowledge and amount of time dedicated to the subject of research. Today, citizen science has become especially important in some fields neglected by professional science, e.g. regional research. Recently, another form of citizen science has gained much attention, in which usually many citizen scientist are active (”Citizen Science light“). Internet, smartphone and georeferencing by GPS are important tools for collecting, documenting and communicating the observation data. Besides the scientific results, social relevance through participation and information of citizens (e.g. for conservation issues) play a very important role in these projects. The recently strongly increasing interest in and contribution to citizen science plays an important role to strengthen the link and communication between science and society.     

Model of development of science by the example of limnology

Limnology—the science about lakes—is the young and relatively closed area of studies; its existence is owing to several hundreds of scientists. The International Society of Limnologists holds its meetings since 1922. We used materials of these meetings to find out the main stages of development of this science; among these stages there were both fast and relatively calm periods. Based on analysis of these data, we constructed a model of development of the science, the same data being used for tuning and verification of the model. We have suggested that the main regularities and mechanisms of development of limnology can be extrapolated to other sciences. The main “acting person” in the model is population of scientists. Each scientist, with some probability, can propose new ideas as well as use in his studies some particular complex of the already accumulated knowledge and ideas. The model also takes into consideration how the scientific information is spreading, as well as some individual peculiarities of model scientists, such as age, experience, communicability. After the model parameters had been chosen in such a way that is described adequately development of limnology, we performed a series of experiments by changing some of the characteristics and obtained rather unexpected results published preliminary in the short work (Levchenko, V.F. and Menshutkin, V.V., Int. J. Comput. Anticip. Syst., 2008, vol. 22, pp. 63–75) and discussed here in the greater detail. It is revealed that development of science occurs irregularly and is sharply decelerated at low level of communication between scientists and the absence of scientific schools, while the age of “scientific youth” of scientist usually begins only after 40 years.     

The interface of natural theology and science in the ethology of W. H. Thorpe

Conclusion It should be clear by now the extent to which many features of Thorpe's interpretation of animal behavior and of the animal mind rested, at bottom, not simply on conventional scientific proofs but on interpretive inferences, which in turn rested on a willingress to make extensions of human experience to animals. This, in turn, rested on his view of evolution and his view of reality. And these were governed by his natural theology, which was the fundamental stratum of his intellectual experience.Contrary to the scientific ethos, which restricts theory choice to scientific issues alone, Thorpe's career suggests that the actual reasons for theory choice among scientists often are not limited to science, but are multiple and may sometimes be difficult to discover. It is largely because Thorpe took a public part in the natural theology enterprise that we can know something about his religious beliefs and so can see their probable influence on his scientific decisions. Similar beliefs of other scientists are sometimes harder to get at. Most may be practically beyond discovery, for the ethos of science has discouraged public professions of personal belief in relation to scientific work.¹⁰¹ Yet does it seem plausible that, for example, the restriction of self-consciousness to humans by some scientists is a purely scientific decision?¹⁰² Surely not, any more than that the strong influence of natural theology on Thorpe's thought means that he was not a good scientist. His natural theology may have led him into incautious enthusiasms regarding the animal mind — such as the potential if unrealizable linguistic ability of chimpanzees — through a bias in favor of the continuity of emergents in a progressive evolutionary system, just as it led him to advocate animal consciousness long before the recent upsurge of interest, but the scientific integrity of his work overall is unimpeachable. And yet, that work is not comprehensible historically as science alone. Personal philosophy must not be discounted in writing the history of recent science. This somewhat obvious conclusion (obvious to historians of science) needs emphasis, for we are still prone to think that the sciences of our own time provide their own internal dynamic that is in itself sufficient to account for their content and development.     

Evaluating how we evaluate

Evaluation of scientific work underlies the process of career advancement in academic science, with publications being a fundamental metric. Many aspects of the evaluation process for grants and promotions are deeply ingrained in institutions and funding agencies and have been altered very little in the past several decades, despite substantial changes that have taken place in the scientific work force, the funding landscape, and the way that science is being conducted. This article examines how scientific productivity is being evaluated, what it is rewarding, where it falls short, and why richer information than a standard curriculum vitae/biosketch might provide a more accurate picture of scientific and educational contributions. The article also explores how the evaluation process exerts a profound influence on many aspects of the scientific enterprise, including the training of new scientists, the way in which grant resources are distributed, the manner in which new knowledge is published, and the culture of science itself.     

Producing Absolute Truth: CSI Science as Wishful Thinking

ABSTRACT  Forensic science has come to be assigned an important role in contemporary crime fiction. In this article, I analyze the cultural repertoire of forensic science conveyed by the popular television show Crime Scene Investigation (CSI). I argue that CSI science, in delivering an absolute "truth" about how and by whom crimes have been committed, is equated with justice, effectively superseding nonfictional forensic science as well as nonfictional judicature as a whole. Thus, CSI as a cultural performance adds to the mediascape a repertoire of wishful-thinking science with which to think about perceptions of and desires for crime and justice in nonfictional society. This repertoire seems to be considered relevant enough to nonfictional society to cause concern about the judicial system, as expressed in discussions of the so-called " CSI effect."     

Restoration and Science: A Practitioner/Scientist's View from Rare Habitat Restoration at a Southern California Preserve

Researchers reexamining the relationship between restoration science and practice report a continuing scientist‐practitioner gap. As a land manager with scientific training, I offer my perspective of the chasm and describe a restoration practice infused with as much science as the realities of limited budget and time allow. The coastal sage scrub (CSS) restoration project at Starr Ranch, a 1,585 ha Audubon preserve in southern California, combines non‐chemical invasive species control, restoration, and applied research. Our practices evolve from modified scientific approaches and the scientific literature. Results from experiments with non‐optimum replication (on effects of seed rates, soil tamping, and timing of planting) nonetheless had value for management decisions. A critical practice came from academic research that encouraged cost‐effective passive restoration. Our passive restoration monitoring data showed 28–100% total native cover after 3–5 years. Another published study found that restoration success in semiarid regions is dependent on rainfall, a finding vital for understanding active restoration monitoring results that showed a range of 0–88% total native cover at the end of the first season. Work progresses through a combination of applied research, a watchful eye on the scientific literature, and “ecological intuition” informed by the scientific literature and our own findings. I suggest that it is less critical for academic scientists to address the basic questions on technique that are helpful to land managers but rather advocate practitioner training in methods to test alternative strategies and long‐term monitoring.