Biodiversity and Conservation 4: 916-928.

Burning fossil fuel in the North American continent contributes more to the CO2 global warming problem than in any other continent. The resulting climate changes are expected to alter food production. The overall changes in temperature, moisture, carbon dioxide, insect pests, plant pathogens, and weeds associated with global warming are projected to reduce food production in North America. However, in Africa, the projected slight rise in rainfall is encouraging, especially since Africa already suffers from severe shortages of rainfall. For all (...) regions, a reduction in fossil fuel burning is vital. Adoption of sound ecological resource management, especially soil and water conservation and the prevention of deforestation, is important. Together, these steps will benefit agriculture, the environment, farmers, and society as a whole. (shrink)

The US neutrino community gathered at the Workshop on the Intermediate Neutrino Program at Brookhaven National Laboratory February 4-6, 2015 to explore opportunities in neutrino physics over the next five to ten years. Scientists from particle, astroparticle and nuclear physics participated in the workshop. The workshop examined promising opportunities for neutrino physics in the intermediate term, including possible new small to mid-scale experiments, US contributions to large experiments, upgrades to existing experiments, R&D plans and theory. The workshop was organized into (...) two sets of parallel working group sessions, divided by physics topics and technology. Physics working groups covered topics on Sterile Neutrinos, Neutrino Mixing, Neutrino Interactions, Neutrino Properties and Astrophysical Neutrinos. Technology sessions were organized into Theory, Short-Baseline Accelerator Neutrinos, Reactor Neutrinos, Detector R&D and Source, Cyclotron and Meson Decay at Rest sessions.This report summarizes discussion and conclusions from the workshop. (shrink)

By constructing a maximal incomplete d.r.e. degree, the nondensity of the partial order of the d.r.e. degrees is established. An easy modification yields the nondensity of the n-r.e. degrees and of the ω-r.e. degrees.

This book collects some of the most exciting pioneering work in perceptual and cognitive psychology. The authors' quantitative approach to the study of mental images and their representation is clearly depicted in this invaluable volume of research which presents, interprets, evaluates, and extends their work. The selections are preceded by a thorough review of the history of their experiments, and all of the articles have been updated with reviews of the current literature. The book's first part focuses on mental rotation; (...) the second includes other, more complex transformations and sequences of transformations. A third part describes work on rotational transformations in the context of the perceptual illusion of &"apparent motion.&" Roger N. Shepard is Professor of Psychology, Stanford University. Lynn A. Cooper is Professor of Psychology, University of Arizona. A Bradford Book. (shrink)

Does science have limits? Where does order come from? Can we understand consciousness? Written by Nobel Laureate Leon N. Cooper, this book places pressing scientific questions in the broader context of how they relate to human experience. Widely considered to be a highly original thinker, Cooper has written and given talks on a large variety of subjects, ranging from the relationship between art and science, possible limits of science, to the relevance of the Turing Test. These essays and (...) talks have been brought together for the first time in this fascinating book, giving readers an opportunity to experience Cooper's unique perspective on a range of subjects. Tackling a diverse spectrum of topics, from the conflict of faith and science to whether understanding neural networks could lead to machines that think like humans, this book will captivate anyone interested in the interaction of science with society. (shrink)

Sober (1992) has recently evaluated Brandon's (1982, 1990; see also 1985, 1988) use of Salmon's (1971) concept of screening-off in the philosophy of biology. He critiques three particular issues, each of which will be considered in this discussion.

By constructing a maximal incomplete d.r.e. degree, the nondensity of the partial order of the d.r.e. degrees is established. An easy modification yields the nondensity of the n-r.e. degrees and of the ω-r.e. degrees.

Disturbing international inequalities in health abound. Life expectancy in Swaziland is half that in Japan. A child unfortunate enough to be born in Angola has 73 times as great a chance of dying before age 5 as a child born in Norway. A mother giving birth in southern sub-Saharan Africa has 100 times as great a chance of dying from her labor as one birthing in an industrialized country. For every mile one travels outward toward the Maryland suburbs from downtown (...) Washington, DC on its underground rail system, life expectancy rises by a year – reflecting the race and class inequities in American health. Are the glaring, even larger, international health inequalities also unjust? -/- All of us no doubt think they are grossly unfortunate. Many of us think they are unfair or unjust. Why should some people be at such a health disadvantage through no fault of their own, losers in a natural and social lottery assigning them birth in an unhealthy place? Others of us are troubled by the absence of the kinds of human relationships that ordinarily give rise to the claims of egalitarian justice that we make on each other – for example, being fellow citizens or even interacting in a cooperative scheme. Who has obligations of justice to reduce these international inequalities? And do those obligations hold regardless of how the inequalities came about? What institutions are accountable for addressing them? (shrink)

Avoiding whinges from various and potentially conflicting stakeholders is a major challenge for sustainable development and for the identification of sustainability scenarios or policies for biodiversity and ecosystem services. It turns out that independently complying with whinge thresholds and constraints of these stakeholders is not sufficient because dynamic ecological-economic interactions and uncertainties occur. Thus more demanding no whinge standards are needed. In this paper, we first argue that these new boundaries can be endogenously exhibited with the mathematical concepts of viability (...) kernel and viable controls. Second, it is shown how these no whinge kernels have components, such as harvesting of resources, that should remain within safe corridor while some other components, in particular biodiversity, have only lower conservation limits. Thus, using radar charts, we show how this no whinge kernels can take the shape of a tree that we name viability tree. These trees of viability capture the idea that the unbounded renewal potential of biodiversity combined with a bounded use of the different ecosystem services are crucial ingredients for the sustainability of socio-ecosystems and the design of no whinge policies reconciling the different stakeholders involved. (shrink)

Peter Abelard (1079–1142 ce) was the most wide‐ranging philosopher of the twelfth century. He quickly established himself as a leading teacher of logic in and near Paris shortly after 1100. After his affair with Heloise, and his subsequent castration, Abelard became a monk, but he returned to teaching in the Paris schools until 1140, when his work was condemned by a Church Council at Sens. His logical writings were based around discussion of the “Old Logic”: Porphyry's Isagoge, aristotle'S Categories and (...) On Interpretation and boethius'S textbook on topical inference. They comprise a freestanding Dialectica (“Logic”; probably c.1116), a set of commentaries (known as the Logica [Ingredientibus], c. 1119) and a later (c. 1125) commentary on the Isagoge (Logica Nostrorum Petititoni Sociorum or Glossulae). In a work Abelard called his Theologia, issued in three main versions (between 1120 and c.1134), he attempted a logical analysis of trinitarian relations and explored the philosophical problems surrounding God's claims to omnipotence and omniscience. The Collationes (“Debates,” also known as “Dialogue between a Christian, a Philosopher and a Jew”; probably c.1130) present a rational investigation into the nature of the highest good, in which the Christian and the Philosopher (who seems to be modeled on a philosopher of pagan antiquity) are remarkably in agreement. The unfinished Scito teipsum (“Know thyself,” also known as the “Ethics”; c.1138) analyses moral action. (shrink)

We show that for any computably enumerable set A and any equation image set L, if L is low and equation image, then there is a c.e. splitting equation image such that equation image. In Particular, if L is low and n-c.e., then equation image is n-c.e. and hence there is no low maximal n-c.e. degree.

We give a corrected proof of an extension of the Robinson Splitting Theorem for the d. c. e. degrees.

For years there was no focus within the U.S. federal government for alternatives to animal toxicity testing. Questions coming to regulatory agencies fell upon individuals to address in the best way they could. Given this void, the ad hoc Interagency Regulatory Alternatives Group was founded by staff in a number of federal agencies in the late 1980s to coalesce efforts in the field. The group sponsored two international workshops on eye irritation, the first making proposals for change in the current (...) test method in rabbits, the second reviewing available data on in vitro alternatives. The result has been that the Organization for Economic Cooperation and Development (OECD) is considering revision of the in vivo eye irritation test guideline to incorporate a number of the workshop deliberations. However, movement of the in vitro eye irritation alternatives has been disappointing; attempts to determine their practical testing significance have thus far been unrewarding. (shrink)

Emotion has a substantial influence on the cognitive processes in humans, including perception, attention, learning, memory, reasoning, and problem solving. Emotion has a particularly strong influence on attention, especially modulating the selectivity of attention as well as motivating action and behavior. This attentional and executive control is intimately linked to learning processes, as intrinsically limited attentional capacities are better focused on relevant information. Emotion also facilitates encoding and helps retrieval of information efficiently. However, the effects of emotion on learning and (...) memory are not always univalent, as studies have reported that emotion either enhances or impairs learning and long-term memory retention, depending on a range of factors. Recent neuroimaging findings have indicated that the amygdala and prefrontal cortex cooperate with the medial temporal lobe in an integrated manner that affords (i) the amygdala modulating memory consolidation; (ii) the prefrontal cortex mediating memory encoding and formation; and (iii) the hippocampus for successful learning and long-term memory retention. We also review the nested hierarchies of circular emotional control and cognitive regulation (bottom-up and top-down influences) within the brain to achieve optimal integration of emotional and cognitive processing. This review highlights a basic evolutionary approach to emotion to understand the effects of emotion on learning and memory and the functional roles played by various brain regions and their mutual interactions in relation to emotional processing. We also summarize the current state of knowledge on the impact of emotion on memory and map implications for educational settings. In addition to elucidating the memory-enhancing effects of emotion, neuroimaging findings extend our understanding of emotional influences on learning and memory processes; this knowledge may be useful for the design of effective educational curricula to provide a conducive learning environment for both traditional “live” learning in classrooms and “virtual” learning through online-based educational technologies. (shrink)

*Introduction by Joseph R. Strayer\n(ix-x) Not that Bloch was the greatest French historian of his generation, though he would certainly rank high in any list. Not even that he was the most widely read—others excelled in that art of combining exact knowledge with readability which has distinguished French scholarship for many years. Others have talked about the narrowness of purely political history, the evils of excessive specialization, and the unreality of the conventional periodization of history—without ever leaving their own limited (...) fields. Bloch not only said that history was a whole, that no period and no topic could be understood except in relation to other periods and topics, but he constantly taught [p.x] and wrote in accordance with this belief. …He worked constantly for a “wider, more human history,” for a history which described how and why people live and work together. He saw life as a whole, as a complicated interplay of ideals and realities, of conscious innovation and unconscious conservation. … Throughout the two volumes he sought, above everything else, to understand and explain the state of mind and the habits of life which could produce and support feudal organization.\n(32-33) It is very like the illusion of certain old etymologiests who thought they had said all when they set down the oldest known meaning of a word opposite its present sense, having shown… As if the main problem were not to understand how and why the transition had taken place. As if, above all, the meaning of any word were influenced more by its own past than by the contemporary state of the vocabulary which, in its turn, is determined by the social conditions of the moment. [Y: think about this when I give the meanings of sirhak]\n(64-65) …every historical research supposes that the inquiry has a direction at the very first step. In the beginning, there must be the guiding spirit. Mere passive observation, even supposing such a thing were possible, has never contributed anything productive to any science. \n(71) Every historical book worthy of the name oought to include a chapter, or if one prefers, a series of paragraphs inserted at turning points in the development, which might almost entitled: “How can I know what I am about to say?” I am persuaded that even the lay reader would experience an actual intellectual pleasure in examining these “confessions.”. (shrink)

Biblical anthropology is demonstrably both holist and dualist. It is holist in teaching that God created, redeems, and will glorify humans as whole embodied persons. It is dualist in teaching that God created humans of two ingredients and that he sustains persons apart from their bodies between death and resurrection. This chapter shows that key arguments against dualism are compromised by problematic hermeneutics, conceptual confusions, and faulty reasoning. It also shows that monism cannot account for the texts which imply dualism, (...) and that dualism is compatible with holism. N. T. Wright corroborates the exegesis supporting these conclusions but defines and rejects dualism as incompatible with holism. Nevertheless, his understanding of holism is compatible with virtually all current Christian dualism. However, Joel Green's holistic exegesis, integral anthropology, and practical theology make valuable contributions that dualists can affirm. (shrink)

There is a moment in Peter Brosens and Jessica Woodworth’s Khadak (2006) when the image of a tree is rotated 180 degrees [...].

This paper draws on 'views and visions' responses collected at the time of the Land Use-UK project in 1996. Surveyors were groups of school children with contributions in more remote locations from adults. As well as mapping the landscape participants were asked about their hopes and visions for the grid squares surveyed. One kilometre squares were identified by stratified random sampling techniques from the Ordnance Survey National Grid. The responses indicated varying levels of optimism and pessimism. The sample of responses (...) in this paper relates to rural key squares ( N = 424) and urban key squares ( N = 413). Young surveyors appeared to be the most pessimistic and there was some correlation of increasing pessimism with increasing land use intensity. (shrink)

This paper draws on 'views and visions' responses collected at the time of the Land Use-UK project in 1996. Surveyors were groups of school children with contributions in more remote locations from adults. As well as mapping the landscape participants were asked about their hopes and visions for the grid squares surveyed. One kilometre squares were identified by stratified random sampling techniques from the Ordnance Survey National Grid. The responses indicated varying levels of optimism and pessimism. The sample of responses (...) in this paper relates to rural key squares ( N = 424) and urban key squares ( N = 413). Young surveyors appeared to be the most pessimistic and there was some correlation of increasing pessimism with increasing land use intensity. (shrink)

Исследование посвящено философскому осознанию природы духовности человека. Автор рассматривает духовность внутреннего мира человека как единство высших чувств души и нравственного сознания. Для специалистов в области философии, методологии науки.

Cet article veut être une confrontation entre l'évolutionnisme et la philosophie d'inspiration thomiste. Pour mener à bien une telle confrontation il faut d'abord se rendre compte de la différence de niveau des deux positions. L'évolutionnisme est une théorie scientifique qui présente une explication plausible d'une série de faits ; elle nous est présentée par les biologistes comme jouissant d'une très haute probabilité. La réflexino philosophique par contre, se déroulant au plan des évidences, doit s'installer d'emblée dans l'absolu. Néanmoins, une confrontation (...) fructueuse entre la théorie de l'évolution et la réflex'on philosophique reste possible. La réflexion philosophique n'ajoute rien à la certitude de fait de la théorie scientifique, mais elle se prononce sur la cohérence intelligible des implications évolutionnistes. L'évolutionnisme considère l'avènement des différentes formes de vie comme une histoire, dans laquelle il n'y a pas seulement succession, mais également dépendance ou conditionnement. En outre elle voit cette histoire comme un développement ascendant de formes de vie toujours plus riches parce que plus différenciées et centralisées. L'homme est inclus dans cette histoire ascendante et en constitue le sommet. Le thomisme connait comme l'évolutionnisme une hiérarchie des vivants. Mais elle est conçue de façon plutôt statique. La question des origines n'est posée que en relation avec la source créatrice de l'être. Néanmoins une dimension historique est introduite dans ce scheme plutôt statique par l'influence du récit biblique de la création. Ceci amène la réflexion thomiste à admettre un ordre temporel qui est en même temps une ascenscion de l'inférieur au supérieur. Mais il semble bien qu'il s'agisse ici d'un conditionnement purement matériel et nullement d'une influence dans l'ordre de l'efficience. Cette dernière semble même devoir être exclue lorsqu'il s'agit du passage d'un être inférieur à un être supérieur, en vertu d'un principe fondamental du thomisme et même de la pensée humaine tout court : le principe de raison suffisante. L'évolutionnisme affirme-t-il une telle influence de l'inférieur sur le devenir du supérieur ? Il faut noter d'abord que l'infériorité et la supériorité au sens biologique ne signifient pas automatiquement une différence ontologique nettement marquée. L'espèce biologique ne peut pas être identifiée sans autre à espèce-essence philosophique. Dans le règne animal p. ex. on ne voit pas les critères apodictiques qui forceraient à admettre une diversité ontologique. Par contre lors du passage de l'animal à l'homme aucun doute n'est possible sur le franchissement d'une barrière essentielle. Cela implique-t-il contradiction ? Oui, si l'on n'admet que l'efficience de l'être inférieur. Mais non, si l'on ne voit dans l'efficience animale qu'un élément d'une efficience complexe, dans laquelle la cause créatrice, transcendante et immanente à la fois, agit à travers et par l'animal pour produire l'homme. La tradition admet une coopération semblable dans la génération de chaque homme. Il ne semble pas que l'inadéquation soit tellement différente dans l'un et l'autre cas, puisque même la formation du corps ressort en dernière analyse de l'âme. Ainsi on conclut à la noncontradiction entre thomisme et évolutionnisme. Il y a même convergence en ce que la doctrine de la matière première comme déterminabilité universelle, la doctrine de l'actuation successive et progressive, ainsi que celle de la connexion finale entre toutes choses forment comme un cadre tout prêt pour accueillir une vue evolutionniste du monde. (shrink)

The purpose of this study is to reveal the function of the concept of Infāq, which is included in the terminology of the Qurʾān itself, in social assistance and solidarity. Poverty has always been one of the social problems from past to present. Although it is analyzed differently in each society via different criteria, poverty generally refers to the condition in which a person lacks the basic necessities for a minimum living standard. Unfortunately, millions of people starve for basic biological (...) and social needs such as nutrition, shelter, education, health, and even water. This is a shame for the humanity. There are both international and national charities working to reduce the misery and poverty. However, due to socio-economic and structural problems such as globalization, disproportion in income distribution, unemployment, overpopulation, economic crises, lack of social security systems, and wars, poverty rises gradually and it is still one of the major social problems needed to be solved. Islam which is the last one of Abrahamic religions and its holy book Qurʾān consider social cooperation and solidarity pretty important within the context of Infāq and hold the believers responsible for the organization of social life. Infāq is an umbrella concept in the Qurʾān, referring to all expenses and cooperation in the name of Allah and it is one of the main qualities of believers. Infāq, which includes other forms of cooperation such as obligatoryalms (zakāt) and charity (ṣadaqā), enables a person to share his tangible values with those who have worse life conditions than himself. In this way, the Quran aims to promote human relations and thereby enhancement and peace in the society. In other words, Infāq aims to eliminate social injustice which refers to social and economic inequalities, to protect the economically weak people against the difficulties in life, and thereby, to maintain economic and social stability. Helping the needy is a powerful path toward having spiritual peace, removing selfish feelings, and keeping emotional wellbeing. People with good mental health will be able to build more humane relationships with others. It is obvious that Infāq would play an important role inbuilding a sense of fellowship and trust. A wealth of person who shares his wealth with the poor will be deemed legitimate by the needy people. Thus, the needy people would be freed from negative feelings and behaviors such as jealousy, incapacity, hatred, bullying, and hostility, and feel a sense of fellowship and gratitude towards those who have better life conditions. One of the most important reasons for robbery, extortion, purse-snatching, and etc., which are currently occurring more frequently, is economic deprivation. Considering the fact that this kind of incidents takes place more frequently in poor countries than developed ones, it is obvious that Infāq has a strategic role in fulfilling the basic needs of the needy. Poverty might be linked to violence, which might end up with murder. Infāq which is divine cooperation approach would take an important role in fighting against criminal incidents that cause fear and indignation. Moreover, the Quran does not specify any certain economic condition to be able to do Infāq, and thereby, it makes people with various economic abilities become a part of the social cooperation. As everyone would take care of people who are relatively worse off, interindividual trust will be strengthen and circle of cooperation will be expanded. According to the Qurʾān, people’s all goods and possessions actually belong to Allah. People are just the trustees of this wealth. Allah grants as much wealth as He wills to whomever He wills. While the rich is responsible for sharing their wealth with the needy, the poor is responsible for bearing the troubles caused by poverty with patience and endeavoring to make money in a halal way. Unless Infāq is done in order to please Allah, it does not have any significance in the presence of Allah. The reason why people have different material living conditions is that both the poor and the rich are subject to test. Thus, they would get rewards for hereafter besides the sustaining of social unity and solidarity. Allah is the only warrantor of the tangible and spiritual wealth gained in return for Infāq. (shrink)

Background If trials of therapeutic interventions are to serve society's interests, they must be of high methodological quality and must satisfy moral commitments to human subjects. The authors set out to develop a clinical - trials compendium in which standards for the ethical treatment of human subjects are integrated with standards for research methods. Methods The authors rank-ordered the world's nations and chose the 31 with >700 active trials as of 24 July 2008. Governmental and other authoritative entities of the (...) 31 countries were searched, and 1004 English-language documents containing ethical and/or methodological standards for clinical trials were identified. The authors extracted standards from 144 of those: 50 designated as ‘core’, 39 addressing trials of invasive procedures and a 5% sample of the remainder. As the integrating framework for the standards we developed a coherent taxonomy encompassing all elements of a trial's stages. Findings Review of the 144 documents yielded nearly 15 000 discrete standards. After duplicates were removed, 5903 substantive standards remained, distributed in the taxonomy as follows: initiation, 1401 standards, 8 divisions; design, 1869 standards, 16 divisions; conduct, 1473 standards, 8 divisions; analysing and reporting results, 997 standards, four divisions; and post-trial standards, 168 standards, 5 divisions. Conclusions The overwhelming number of source documents and standards uncovered in this study was not anticipated beforehand and confirms the extraordinary complexity of the clinical trials enterprise. This taxonomy of multinational ethical and methodological standards may help trialists and overseers improve the quality of clinical trials, particularly given the globalisation of clinical research. (shrink)

Cooperative child care among humans, where individuals other than the biological mother (allomothers) provide care, may increase a mother’s fertility and the survivorship of her children. Although the potential benefits to the mother are clear, the motivations for allomothers to provide care are less clear. Here, we evaluate the kin selection allomothering hypothesis using observations on Hadza hunter-gatherers collected in ten camps over 17 months. Our results indicate that related allomothers spend the largest percentage of time holding children. The higher (...) the degree of relatedness among kin, the more time they spend holding, supporting the hypothesis of nepotism as the strongest motivation for providing allomaternal care. Unrelated helpers of all ages also provide a substantial amount of investment, which may be motivated by learning to mother, reciprocity, or coercion. (shrink)

For much of the 20th century, vulnerability to deprivations of health has often been defined by geographical and economic factors. Those in wealthy, usually ‘Northern’ and ‘Western’, parts of the world have benefited from infrastructures, and accidents of geography and climate, which insulate them from many serious threats to health. Conversely, poorer people are typically exposed to more threats to health, and have lesser access to the infrastructures needed to safeguard them against the worst consequences of such exposure. However, in (...) recent years the increasingly globalized nature of the world’s economy, society and culture, combined with anthropogenic climate change and the evolution of antibiotic resistance, has begun to shift the boundaries that previously defined the categories of person threatened by many exogenous threats to health. In doing so, these factors expose both new and forgotten similarities between persons, and highlight the need for global cooperative responses to the existential threats posed by climate change and the evolution of antimicrobial resistance. In this article, we argue that these emerging health threats, in demonstrating the similarities that exist between even distant persons, provides a catalyst for global solidarity, which justifies, and provides motivation for, the establishment of solidaristic, cooperative global health infrastructures. (shrink)

This book provides a practical and accessible way of evaluating good and bad arguments used in everyday conversations by applying normative models of dialectical (interactive) argumentation, where two parties reason together in an orderly and cooperative way. Using case studies, the author analyzes correct and incorrect uses of argumentation on controversial issues that engage the reader's interest while illustrating points in a practical way. Walton gives clear explanations of the most common errors and tricky deceptions -- traditionally called "fallacies" -- (...) that can trip up an unwary arguer. (shrink)

Darwin's theory of evolution brought to an end the static view of nature. It was no longer possible to think of species as immortal, with secure places in nature. Fluctuation of population could no longer be thought of as occurring within definite limits which had been set at the time of creation. Nor was it any longer possible to generalize from the differential reproductive potentials, or from a few cases of mutualism between species, that everything in nature was “fitted to (...) produce general ends, and reciprocal uses.” 134 The appeal to “design” could no longer be substituted for answers to questions concerning animal demography. Instead, the dynamics of a population had to be viewed as the outcome of species' struggle against animate and inanimate factors in the environment. Both the members of a species and the environmental factors tend to vary randomly, and therefore neither evolution nor population dynamics could be fully understood alone. For this reason Darwin's linking of the two subjects was inevitable and not merely an historical accident. Since Darwin had shown that no automatic equilibrium existed, he demonstrated the importance of closer study of the causes of population dynamics and extinction. He also indicated that an understanding of population depends upon the development of a broad knowledge in ecology.Viewed from another direction, Darwin's work ended the early modern era of population studies by clarifying three interrelated problems which were important for understanding population: extinction, distribution, and the nature of species. The components of his answer had been discussed in the eighteenth century, but there had not existed enough evidence for the completion of the revolution in thought which had then begun. At the beginning of the nineteenth century, Playfair found the evidence for extinction conclusive, and, in spite of Lamarck, Curvier convinced the scientific world that there could no longer be any doubt about it. This was a step the importance of which, with his limited knowledge of biogeography and population, Cuvier could not have fully realized. Lamarck attempted, with his evolutionary theory, to circumvent the necessity for admitting extinction, but he overestimated the adaptability of organisms and in doing so he underestimated the importance of competition and the whole field of ecology. On the other hand, he was not willing to let questions such as the origin of species remain taboo to science. The origin of species was a biogeographical as well as a paleontological question. Humboldt correlated environment with the distribution of species and conveyed the impression that plant communities are subject to change. De Candolle, following the lead of Linnaeus and Humboldt, emphasized the ecological aspects of biogeography, not only the importance of habitat and range, clearly showing the ecological effects of competition. The entomologists Kirby and Spence took a faltering step toward understanding the relationship between population and ecological role, but they fell short of any significant new conclusions. Neither they nor Swainson could fully comprehend the new perspective of De Candolle.Lyell was able to bring together the evidence from these three lines of investigation and weave them into an important synthesis that almost accomplished that Darwin later did. Although opposing Lamarck's theory of evolution, Lyell had a dynamic view of ecology. He realized that population dynamics offered an important key to the understanding of biogeography. Since he knew that species become extinct, he investigated closely the factors which could either preserve or extinguish species. While explaining these factors, he described the interrelationships of species in greater detail than had ever been done before. Forbes continued to develop Lyell's ecological concepts, and his first-hand field experience enabled him to describe biotic communities more concretely than Lyell had.Having the advantages of Lyell's understanding and his own experience from a global voyage, Darwin could take the final step from the static to the dynamic concept of life. He had seen populations fluctuating and also fossil species in South America, and on the Galapagos Islands he had encountered a biogeographical problem that could not be credibly solved without the idea of evolution. However, the bare idea of evolution did not fully answer his questions. He sought physiological causes of extinction before he read Malthus and realized that De Candolle and Lyell had correctly emphasized the importance of competition. Darwin found that, in order to understand evolution, he needed to improve his understanding of ecology. He wanted to know when populations were most easily decimated, how extensive were competition and cooperation, what effects parasites have upon populations, and what changes occur in biotic communities when a species is either added or subtracted. He contributed to some extent to answering these questions. Though there remained much for others to do, there was now a new and more secure theoretical framework within which later studies could be interpreted. As Ernst Mayr has observed, Darwin's “consistent thinking in terms of population has had an impact on biological theory and practice which is second only to his sponsorship of natural selection as the mechanism of evolution.” 135. (shrink)

Intra- and intergroup conflict are likely to have been recurrent features of human evolutionary history; however, little research has investigated the factors that affect men’s combat alliance decisions. The current study investigated whether features of previous one-on-one combat with an opponent affect men’s interest in allying with that opponent for future group combat. Fifty-eight undergraduate men recruited from a psychology department subject pool participated in a one-on-one laboratory fight simulation. We manipulated fight outcome, perceived fighter health asymmetry, and the presence (...) of a witness over six sets of five rounds of fighting. Following each set, we asked men how interested they would be in allying with their opponent for future group combat. We found that men were more interested in allying with their opponent for future group combat if their opponent won the fight or if a witness was present, but perceived fighter-health asymmetry did not affect men’s decision to ally with their opponent. Exploratory analyses revealed a two-way interaction between fight outcome and the presence of a witness, such that winners without a witness present expressed less interest in allying with their opponent for future group combat. Our findings suggest that men attend to the benefits of allying with a man who has demonstrated relatively superior fighting ability. Alliance with a previous opponent for group combat may vary with the relationship value of the opponent and the utility of demonstrating cooperativeness to third-party observers. These findings inform our understanding of coalition formation. (shrink)

Mitochondrial function is achieved through the cooperative interaction of two genomes: one nuclear (nuDNA) and the other mitochondrial (mtDNA). The unusual transmission of mtDNA, predominantly maternal without recombination is predicted to affect the fitness of male offspring. Recent research suggests the strong sexual dimorphism in aging is one such fitness consequence. The uniparental inheritance of mtDNA results in a selection asymmetry; mutations that affect only males will not respond to natural selection, imposing a male‐specific mitochondrial mutation load. Prior work has (...) implicated this male‐specific mutation load in disease and infertility, but new data from fruit flies suggests a prominent role for mtDNA in aging; across many taxa males almost invariably live shorter lives than females. Here we discuss this new work and identify some areas of future research that might now be encouraged to explore what may be the underpinning cause of the strong sexual dimorphism in aging.Editor's suggested further reading in BioEssays: Mitonuclear match: Optimizing fitness and fertility over generations drives ageing within generations AbstractMitochondrial manoeuvres: Latest insights and hypotheses on mitochondrial partitioning during mitosis in Saccharomyces cerevisiae AbstractMitochondria and the culture of the Borg Abstract. (shrink)

I have attempted to clarify some of the pathways in the development of Darwin's thinking. The foregoing examples of influence by no means include all that can be found by comparing Darwin's writings with Humboldt's. However, the above examples seem adequate to show the nature and extent of this influence. It now seems clear that Humboldt not only, as had been previously known, inspired Darwin to make a voyage of exploration, but also provided him with his basic orientation concerning how (...) and what to observe and how to write about it. An important part of what Darwin assimilated from Humboldt was an appreciation of population analysis as a tool for assessing the state of societies and of the benefits and hardships which these societies can expect to receive from the living world around them.Darwin exhibited in his Journal of Researches a casual interest in the economic and political conditions of the countries he visited, but these considerations were much less important to him than to Humboldt. Instead, Darwin, with the assistance of Lyell's Principles of Geology, shifted from Humboldt's largely economic framework to a biological one built around the species question. This shift led Darwin away from a consideration of how the population biology of animals was related to man's economy to focus instead upon how population biology fitted into the economy of nature.Humboldt's Personal Narrative served very well as a model for Darwin's Journal of Researches, thereby helping Darwin gain scientific eminence. The Journal of Researches, like virtually all of Humboldt's writings, was a contribution to scientific orthodoxy. But Darwin had, along the way, acquired an urge to do more than just add his building blocks to the orthodox scientific edifice. He decided to rearrange those blocks of knowledge into a different structure, and for that task neither Humboldt's Personal Narrative nor any other of his works could serve as a model. Humboldt had lacked the confidence which Darwin needed that biogeography and the origin of species could be understood. Humboldt had not explored very far the possible connections between biology and geology. Nor had he provided a general synthetic account of population biology. Had he done so, he might have been more explicit about the extent of his endorsement of Malthus. But even if he had, Humboldt's strong orientation toward cooperation would probably have inhibited his recognition of the importance of competition in nature.Lyell, who had also benefited from reading Humboldt, gave Darwin insights that were lacking in Humboldt's Personal Narrative. Lyell admirably demonstrated how stratigraphy, paleontology, biogeography, and population biology could be interrelated, and his reasons for doing so were essentially the same as Darwin's. Lyell's understanding of biogeography and ecology came from the writings of Augustin-Pyramus de Candolle as much as from Humboldt's, and from the former Lyell derived an appreciation for the importance of competition and also a confidence that the mysteries of biogeography could be explained.117 Furthermore, Lyell's discussion of all these subjects and also of evolution in his Principles of Geology is a good synthetic argument that was the ideal model for Darwin's greatest book.Darwin, having become convinced that species change through time, was able to synthesize in his mind the contributions which he had derived from the writings of Humboldt and Lyell as they applied to the species question. When Darwin wrote his Journal of Researches there were two large gaps in his thinking about evolution that bothered him—the mechanism of evolution and the causes of extinction. It was only after reading Malthus in 1838 that he realized, as Lyell had more or less pointed out, how important was competition in nature. He now had the general outlines for his theory, and in the 1845 abridged edition of his Journal, now retitled The Voyage of the Beagle, he inserted a fuller discussion of competition in nature which showed his awareness of its importance as an ecological factor.118. (shrink)

Normal 0 false false false MicrosoftInternetExplorer4 During the Philippine-American War of 1899-1902, the United States Army’s most difficult, and renowned, counterinsurgency campaign was waged on the island of Samar. The Samareño insurgents had a well developed infrastructure and were merciless with those who collaborated with the Americans. The Samarnons made extensive use of the island’s rough terrain with heavy forest cover, and raised funds from the island’s hemp merchants. The Americans defeated the insurgents by separating them from the population. This (...) was achieved through food restrictions, a strict policy of non-neutrality forcing the people to choose between them or the insurgents, by concentrating the population in camps, by providing benefits to those who cooperated with them, and through skillful use of intelligence to dismantle the insurgent infrastructure. This campaign may have been an excellent demonstration of the principles of counterinsurgency warfare but it inflicted substantial abuses upon the Samarnons and caused long term damage to the island’s economy. Given the atrocities associated with the campaign, and its detrimental effects upon the island’s economy, one must truly wonder if it provides lessons worth learning. (shrink)

In his final work, Donald N. Levine, one of the great late-twentieth-century sociological theorists, brings together diverse social thinkers. Simmel, Weber, Durkheim, Parsons, and Merton are set into a dialogue with philosophers such as Hobbes, Smith, Montesquieu, Comte, Kant, and Hegel and pragmatists such as Peirce, James, Dewey, and McKeon to describe and analyze dialogical social theory. This volume is one of Levine's most important contributions to social theory and a worthy summation of his life's work. Levine demonstrates that approaching (...) social theory with a cooperative, peaceful dialogue is a superior tactic in theorizing about society. He illustrates the advantages of the dialogical model with case studies drawn from the French Philosophes, the Russian Intelligentsia, Freudian psychology, Ushiba's aikido, and Levine's own ethnographic work in Ethiopia. Incorporating themes that run through his lifetime's work, such as conflict resolution, ambiguity, and varying forms of social knowledge, Levine suggests that while dialogue is an important basis for sociological theorizing, it still vies with more combative forms of discourse that lend themselves to controversy rather than cooperation, often giving theory a sense of standing still as the world moves forward. The book was nearly finished when Levine died in April 2015, but it has been brought to thoughtful and thought-provoking completion by his friend and colleague Howard G. Schneiderman. This volume will be of great interest to students and teachers of social theory and philosophy. (shrink)

Informed consent has passed through three stages. The first paternalistic stage lasted for many centuries: The doctor's diagnosis and healing arts were kept secret, and informing patients was regarded as professionally and ethically wrong. Second came the legal stage, when the right of patients to make informed decisions concerning their own treatment was imposed by the courts and reluctantly tolerated by medical professionals. The third informed consent stage emerged more recently: the general therapy stage. The therapeutic benefits of informed consent (...) have been well established, and informed consent is widely recognized as an important element in sound medical practice. When patients are effectively informed and can exert knowledgeable control over their own treatment decisions and therapy processes, that enhances recovery, strengthens the immune system, promotes better pain tolerance, prevents depression, and encourages patient cooperation and fortitude in treatment, rehabilitation, and preventative procedures. As the medical community has absorbed greater knowledge of this research, informed consent has been recognized as both ethically essential and therapeutically sound: the hallmark of the current general therapy stage of informed consent. (shrink)

The relation between sex hormones and responses to partner infidelity was explored in two studies reported here. The first confirmed the standard sex difference in relationship jealousy, that males (n=133) are relatively more distressed by a partner’s sexual infidelity and females (n=159) by a partner’s emotional infidelity. The study also revealed that females using hormone-based birth control (n=61) tended more toward sexual jealousy than did other females, and reported more intense affective responses to partner infidelity (n=77). In study two, 47 (...) females were assessed four times across one month. Patterns of response to partner infidelity did not vary by week of menstrual cycle, but significant relations between salivary estradiol level and jealousy responses were obtained during the time of rising and high fertility risk. The implications, at least for females, are that any evolved psychological, affective, or behavioral dispositions regarding reproduction-related relationships are potentially moderated by estradiol, and that the use of synthetic hormones may disrupt this relation. (shrink)

This essay asks the question “What would it mean to be a just university?” and answers to that the question may be understood in two ways. One way to understand “just” is procedural, having to do with internal governance and ensuring that a university’s policies are themselves just. The other is substantive, having to do with the university’s purpose or reason for existing. The second assumes the university is to serve some function necessary for the general good. This good is (...) often defined in material terms: fostering a stronger economy, medical breakthroughs, more efficient use of natural resources, and so on. But such a view of the university defines its value entirely by factors external to itself. Proponents of one definition of the university’s purpose typically acknowledge some validity in the other, and universities commonly strive to fulfill the claims of both definitions. But universities also have an obligation to teach the young and to do so within the context of a common set of values that both determines the setting in which teaching takes place and encourages students to develop values that will shape their own lives. Katz argues in particular that intellectuals have a special obligation to work cooperatively to eliminate intellectual obstacles that stand in the way of commensuration, communication, and comprehension globally. It is this responsibility that he calls “intellectual philanthropy.”. (shrink)

Ample research links mothers’ postpartum depression (PPD) to adverse interactions with their infants. However, most studies relied on general population samples, whereas a substantial number of women are at elevated depression risk. The purpose of this study was to describe mothers’ interactions with their 6- and 12-month-old infants among women at elevated risk, although with a range of symptom severity. We also identified higher-order factors that best characterized the interactions and tested longitudinal consistency of these factors from 6 to 12 (...) months of infant age. We leveraged data from eight projects across the United States (n = 647), using standardized depression measures and an adaptation of the NICHD Mother-Infant Interaction Scales. Overall, these depression-vulnerable mothers showed high levels of sensitivity and positive regard and low levels of intrusiveness, detachment, and negative regard with their infants. Factor analyses of maternal behaviors identified two overarching factors—“positive engagement” and “negative intrusiveness” that were comparable at 6 and 12 months of infant age. Mothers’ ability to regulate depressed mood was a key behavior that defined “positive engagement” in factor loadings. An exceptionally strong loading of intrusiveness on the second factor suggested its central importance for women at elevated depression risk. Mothers with severe depressive symptoms had significantly more “negative intrusiveness” and less “positive engagement” with their 6-month-old infants than women with moderate or fewer depressive symptoms, suggesting a potential tipping point at which symptoms may interfere with the quality of care. Results provide the foundation for further research into predictors and moderators of women’s interactions with their infant among women at elevated risk for PPD. They also indicate a need for evidence-based interventions that can support more severely depressed women in providing optimal care. (shrink)

Heidegger's book is both Kant's good fortune and ours; as a philosopher, Heidegger's treatment is guided by the thesis that ontology is founded on transcendental philosophy, and that it is prior to metaphysica specialis, i.e., cosmology, psychology, and theology. As a scholar, Heidegger finely dissects the Transcendental Analytic, arguing that man's finitude consists in the required cooperation of sensibility and understanding, both of which stem, as Kant intimated, from imagination; and time is of the essence of imagination. Heidegger's vigorous defense (...) of the Schematism is a superb example of imaginative philosophy and careful scholarship well blended. The translator lacks confidence in the English language, and often uses English merely as a clue to Heidegger's German. --R. C. N. (shrink)