Marx, Aristotle and beyond: aspects of Aristotelianism in Marxist social ontology

Marx's debt to Aristotle has been noted, but inadequately. Usually commentators focus on the parallels between discrete ethical theories of both writers. However, for Marx, ethics is not a discrete field, but is founded on a conception of social ontology. This thesis links the two by showing that, precisely because of its Aristotelian roots, Marx's political economy of bourgeois society demands an ethical view arising from alienated labour. Marx conceives of bourgeois society as an organic whole. But this entails that is social matter can only exist potentially, and not fully setting up a tension that points to the eventual supercession of its social form. In this manner, Marx's Aristotelian hylomorphism provides the link between the early and the later Marx, between the critique of alienation and the mature works of political economy. This reading of Marx is facilitated by combining it with recent developments in philosophy. The works of Harré, Kripke and Wiggins, in particular have helped retrospectively to justify Marx's intuitive realism. Their contributions on explanation identity and sortals are applied in order to elucidate and justify his ontology. In the course of this, the problematic boundary between analytical philosophy and social theory is crossed. Marx restates ancient beliefs about the transitory nature of existence and the eternal nature of change. In particular, there are strong parallels between Marx's account of the decline and eventual fall of capitalism, and the Aristotelian message that all sublunary entities come to be and pass away. These parallels are sufficiently striking to allow us to recognise that Marx's account of the crisis ridden and ultimately doomed perspective for capitalism, overlooked by his protagonists, is but a variant of the Aristotelian theory of passing away or phthorá

Optimization of resource allocation can explain the temporal dynamics and honesty of sexual signals

In species in which males are free to dynamically alter their allocation to sexual signaling over the breeding season, the optimal investment in signaling should depend on both a male’s state and the level of competition he faces at any given time. We developed a dynamic optimization model within a game‐theoretical framework to explore the resulting signaling dynamics at both individual and population levels and tested two key model predictions with empirical data on three‐spined stickleback (Gasterosteus aculeatus) males subjected to dietary manipulation (carotenoid availability): (1) fish in better nutritional condition should be able to maintain their signal for longer over the breeding season, resulting in an increasingly positive correlation between nutritional status and signal (i.e., increasing signal honesty), and (2) female preference for more ornamented males should thus increase over the breeding season. Both predictions were supported by the experimental data. Our model shows how such patterns can emerge from the optimization of resource allocation to signaling in a competitive situation. The key determinants of the honesty and dynamics of sexual signaling are the condition dependency of male survival, the initial frequency distribution of nutritional condition in the male population, and the cost of signaling

Ranging behaviour of commercial free-range laying hens

Simple Summary: Commercial free-range production has become a significant sector of the fresh egg market due to legislation banning conventional cages and consumer preference for products perceived as welfare friendly, as access to outdoor range can lead to welfare benefits such as greater freedom of movement and enhanced behavioural opportunities. This study investigated dispersal patterns, feather condition and activity of laying hens in three distinct zones of the range area; the apron area near shed; enriched zone 10–50 m from shed; and outer range beyond 50 m, in six flocks of laying hens under commercial free-range conditions varying in size between 4000 and 24,000 hens. Each flock was visited for four days to record number of hens in each zone, their behaviour, feather condition and nearest neighbour distances (NND), as well as record temperature and relative humidity during the visit. Temperature and relative humidity varied across the study period in line with seasonal variations and influenced the use of range with fewer hens out of shed as temperature fell or relative humidity rose. On average, 12.5% of the hens were observed on the range and most of these hens were recorded in the apron zone as hen density decreased rapidly with increasing distance from the shed. Larger flocks appeared to have a lower proportion of hens on range. The hens used the range more in the early morning followed by a progressive decrease through to early afternoon. The NND was greatest in the outer range and decreased towards the shed. Feather condition was generally good and hens observed in the outer range had the best overall feather condition. Standing, pecking, walking and foraging were the most commonly recorded behaviours and of these, standing occurred most in the apron whereas walking and foraging behaviours were recorded most in the outer range. This study supported the findings of previous studies that reported few hens in the range and greater use of areas closer to the shed in free-range flocks. This study suggests that hens in the outer range engaged more in walking and foraging activities and showed signs of better welfare than those closer to the shed. Abstract: In this study, the range use and behaviour of laying hens in commercial free-range flocks was explored. Six flocks were each visited on four separate days and data collected from their outdoor area (divided into zones based on distance from shed and available resources). These were: apron (0–10 m from shed normally without cover or other enrichments); enriched belt (10–50 m from shed where resources such as manmade cover, saplings and dust baths were provided); and outer range (beyond 50 m from shed with no cover and mainly grass pasture). Data collection consisted of counting the number of hens in each zone and recording behaviour, feather condition and nearest neighbour distance (NND) of 20 birds per zone on each visit day. In addition, we used techniques derived from ecological surveys to establish four transects perpendicular to the shed, running through the apron, enriched belt and outer range. Number of hens in each 10 m × 10 m quadrat was recorded four times per day as was the temperature and relative humidity of the outer range. On average, 12.5% of hens were found outside. Of these, 5.4% were found in the apron; 4.3% in the enriched zone; and 2.8% were in the outer range. This pattern was supported by data from quadrats, where the density of hens sharply dropped with increasing distance from shed. Animals 2016, 6, x 2 of 13 Consequently, NND was greatest in the outer range, least in the apron and intermediate in the enriched belt. Hens sampled in outer range and enriched belts had better feather condition than those from the apron. Standing, ground pecking, walking and foraging were the most commonly recorded activities with standing and pecking most likely to occur in the apron, and walking and foraging more common in the outer range. Use of the outer range declined with lower temperatures and increasing relative humidity, though use of apron and enriched belt was not affected by variation in these measures. These data support previous findings that outer range areas tend to be under-utilized in commercial free-range flocks and suggest positive relationships between range use, feather condition and increased behavioural opportunities and decline in the use of range in cold and/or damp conditions

Magic Swords, Mythic Creatures, and Mighty Warriors: Archetypal Patterns in Fantasy Literature

Thesis advisor: Timothy DuketSynthesizing elements of so many traditions, fantasy has grown into perhaps the most pervasive genre of literature in the western world. The archetypal adventures and themes that have been carried into fantasy through ancient legends and myths have survived over the ages because it was decided long ago those tales had great worth. It was the unpopular and poorly formed legends that died out, while the superior stories were carried from culture to culture under new guises. In this way, fantasy can be seen as the culmination of human legends, filtered throughout history so that only the great tales remain. On what greater pedestal could a form of literature be based? Fantasy has even continued the refinement process in the last fifty years, with active writers like Jordan and Goodkind incorporating elements from the greatest of previous fantasy authors like Tolkien, Howard, and Donaldson. Thus fantasy is continually improving upon itself and evolving in new ways through its modification of old themes. How long can critics refuse to recognize fantasy as a legitimate form? With such admirable authors writing today, it seems logical that the answer would be sooner rather than later. Might fantasy be vanquished by sneering critics and replaced with another form of fiction? Gandalf claims even the Wise cannot see all ends, and while in no way do I profess such wisdom, I find it difficult to believe that, as the successor of mythology, fantasy will ever fizzle and die. A force greater than all the magic swords and rings combined would be necessary to kill four thousand years of human imagination.Thesis (BA) — Boston College, 2003.Submitted to: Boston College. College of Arts and Sciences.Discipline: English.Discipline: College Honors Program

A Resource Curse for Institutions: Rent Dependency and Quality of Government

Thesis advisor: Richard, S.J. McGowanThe Natural Resource Curse literature proposes to explain why and to what extent resource-wealthy countries have poor economic growth outcomes. Most research focuses on direct economic explanations, considering the role of governing institutions exogenously if at all. One emerging branch of explanations attempts to address this shortcoming, focusing on the indirect effects of institutional deterioration on economic outcomes in resource-rich countries. I add to this emerging literature by performing an econometric analysis of 16 oil-producing nations, examining the impact of national oil rent dependency on 12 dimensions of government quality from 1987-2008. I find that oil dependency has a significant negative impact on government quality in 11 of the 12 dimensions. I also find that controlling for preexisting levels of democracy does not significantly mitigate institutional resource curse effects. This runs counter to findings about economic effects, which tend to disappear when democracy levels are high.Thesis (BA) — Boston College, 2010.Submitted to: Boston College. College of Arts and Sciences.Discipline: Economics Honors Program.Discipline: College Honors Program.Discipline: Economics

Habitat Selection in a Rocky Landscape: Experimentally Decoupling the Influence of Retreat Site Attributes from That of Landscape Features

Organisms selecting retreat sites may evaluate not only the quality of the specific shelter, but also the proximity of that site to resources in the surrounding area. Distinguishing between habitat selection at these two spatial scales is complicated by co-variation among microhabitat factors (i.e., the attributes of individual retreat sites often correlate with their proximity to landscape features). Disentangling this co-variation may facilitate the restoration or conservation of threatened systems. To experimentally examine the role of landscape attributes in determining retreat-site quality for saxicolous ectotherms, we deployed 198 identical artificial rocks in open (sun-exposed) sites on sandstone outcrops in southeastern Australia, and recorded faunal usage of those retreat sites over the next 29 months. Several landscape-scale attributes were associated with occupancy of experimental rocks, but different features were important for different species. For example, endangered broad-headed snakes (Hoplocephalus bungaroides) preferred retreat sites close to cliff edges, flat rock spiders (Hemicloea major) preferred small outcrops, and velvet geckos (Oedura lesueurii) preferred rocks close to the cliff edge with higher-than-average sun exposure. Standardized retreat sites can provide robust experimental data on the effects of landscape-scale attributes on retreat site selection, revealing interspecific divergences among sympatric taxa that use similar habitats

Dietary carotenoid availability, sexual signalling and functional fertility in sticklebacks

In species where males express carotenoid-based sexual signals, more intensely coloured males may be signalling their enhanced ability to combat oxidative stress. This may include mitigating deleterious oxidative damage to their sperm, and so be directly related to their functional fertility. Using a split-clutch in vitro fertilization technique and dietary carotenoid manipulation, we demonstrate that in non-competitive fertilization assays, male three-spined sticklebacks (Gasterosteus aculeatus) that are fed higher (but biologically relevant) levels of carotenoids had a significantly increased fertilization success, irrespective of maternal carotenoid intake. Furthermore, within diet groups, a male's fertilization success was positively related to the expression of his carotenoid-based nuptial coloration, with more intensely coloured males having higher functional fertility. These data provide, to our knowledge, the first demonstration that dietary access to carotenoids influences fertilization success, and suggest that females could use a male's nuptial coloration as an indicator of his functional fertility

Computational mechanisms underlying social evaluation learning and associations with depressive symptoms during adolescence

There is a sharp increase in depression in adolescence, but why this occurs is not well understood. We investigated how adolescents learn about social evaluation and whether learning is associated with depressive symptoms. In a cross-sectional school-based study, 598 adolescents (aged 11-15 years) completed a social evaluation learning task and the short Mood and Feelings Questionnaire. We developed and validated reinforcement learning models, formalising the processes hypothesised to underlie learning about social evaluation. Adolescents started the learning task with a positive expectation that they and others would be liked, and this positive bias was larger for the self than others. Expectations about the self were more resistant to feedback than expectations about others. Only initial expectations were associated with depressive symptoms; adolescents whose expectations were less positive had more severe symptoms. Consistent with cognitive theories, prior beliefs about social evaluation may be a risk factor for depressive symptoms

Inhaled nitric oxide to control platelet hyper-reactivity in patients with acute submassive pulmonary embolism

Background: We test if inhaled nitric oxide (NO) attenuates platelet functional and metabolic hyper-reactivity in subjects with submassive pulmonary embolism (PE). Methods: Participants with PE were randomized to either 50 ppm NO + O2 or O2 only for 24 h with blood sampling at enrollment and after treatment; results were compared with healthy controls. Platelet metabolic activity was assessed by oxygen consumption (basal and uncoupled) and reactivity was assessed with agonist-stimulated thromboelastography (TEG) and fluorometric measurement of agonist-stimulated cytosolic [Ca++] without and with pharmacological soluble guanylate (sGC) modulation. Results: Participants (N = 38 per group) were well-matched at enrollment for PE severity, comorbidities as well as TEG parameters and platelet O2 consumption. NO treatment doubled the mean plasma [NO3-] (P < 0.001) indicating successful delivery, but placebo treatment produced no change. After 24 h, neither TEG nor O2 consumption parameters differed significantly between treatment groups. Platelet cytosolic [Ca++] was elevated with PE versus controls, and was decreased by treatment with cinaciguat (an sGC activator), but not riociguat (an sGC stimulator). Stimulated platelet lysate sGC activity was increased with PE compared with controls. Conclusions: In patients with acute submassive PE, despite evidence of adequate drug delivery, inhaled NO had no major effect on platelet O2 consumption or agonist-stimulated parameters on TEG. Pharmacological activation, but not stimulation, of sGC effectively decreased platelet cytosolic [Ca++], and platelet sGC activity was increased with PE, confirming the viability of sGC as a therapeutic target