scholarly journals The Respiration of some Planktonic copepods II. The Effect Of Temperature

Author(s):  
D. T. Gauld ◽  
J. E. G. Raymont

The respiratory rates of three species of planktonic copepods, Acartia clausi, Centropages hamatus and Temora longicornis, were measured at four different temperatures.The relationship between respiratory rate and temperature was found to be similar to that previously found for Calanus, although the slope of the curves differed in the different species.The observations on Centropages at 13 and 170 C. can be divided into two groups and it is suggested that the differences are due to the use of copepods from two different generations.The relationship between the respiratory rates and lengths of Acartia and Centropages agreed very well with that previously found for other species. That for Temora was rather different: the difference is probably due to the distinct difference in the shape of the body of Temora from those of the other species.The application of these measurements to estimates of the food requirements of the copepods is discussed.

2000 ◽  
Vol 7 (1) ◽  
pp. 3-39 ◽  
Author(s):  
Tony Burns

AbstractWhat is the young Marx's attitude towards questions of psychology? More precisely, what is his attitude towards the human mind and its relationship to the body? To deal adequately with this issue requires a consideration of the relationship between Marx and Feuerbach. It also requires some discussion of the thought of Aristotle. For the views of Feuerbach and the young Marx are (in some respects) not at all original. Rather, they represent a continuation of a long tradition which derives ultimately from ancient Greek philosophy, and especially from the philosophy of Aristotle. As is well known, Aristotle's thought with respect to questions of psychology are mostly presented, by way of a critique of the doctrines of the other philosophers of his day, in his De Anima. W.H. Walsh has made the perceptive observation that Aristotle's views might be seen as an attempt to develop a third approach which avoids the pitfalls usually associated with the idealism of Plato, on the one hand, and the materialism of Democritus on the other. It might be argued that there is an analogy between the situation in which Aristotle found himself in relation to the idealists and materialists of his own day and that which confronted Marx in the very early 1840s. For, like Aristotle, Marx also might be seen as attempting to develop such a third approach. The difference is simply that, in the case of Marx, the idealism in question is that of Hegel rather than that of Plato, and the materialism is the ‘mechanical materialism’ of the eighteenth century rather than that of Democritus. This obvious parallel might well explain why Marx took such a great interest in Aristotle's De Anima both during and shortly after doing the preparatory work for his doctoral dissertation – the subject matter of which, of course, is precisely the materialist philosophy of the ancient Greek atomists Democritus and Epicurus.


2006 ◽  
Vol 2 (2) ◽  
Author(s):  
Carina Henriksson

This paper examines the question: what is the experience of meeting online and how does it differ from ordinary classroom situations? Drawing from personal experience, the author explores possible experiences of existing in virtual space and time. How do people meet, get to know each other and, interact in a pedagogical situation? Her experience as an online student made her to seriously reflect on the experiential nature of the computer-mediated encounter. But, it was not until she happened to participate in a workshop offered by the same teacher that the contrasts began to take shape for her. If there is a difference between online and offline meetings, what is it that makes the difference? Online communication could, just as face-to-face meetings, create feelings of closeness, and friendship; from the other-as-a-text on the screen, we subjectively create the other-as-an-idea, an idea that might be perceived as the real other. But is it? What reality is for real? What is the nature of the relationship established between body-less persons on line, and what difference does the body make in a face-to-face meeting?


Open Theology ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 430-450
Author(s):  
Kristóf Oltvai

Abstract Karl Barth’s and Jean-Luc Marion’s theories of revelation, though prominent and popular, are often criticized by both theologians and philosophers for effacing the human subject’s epistemic integrity. I argue here that, in fact, both Barth and Marion appeal to revelation in an attempt to respond to a tendency within philosophy to coerce thought. Philosophy, when it claims to be able to access a universal, absolute truth within history, degenerates into ideology. By making conceptually possible some ‚evental’ phenomena that always evade a priori epistemic conditions, Barth’s and Marion’s theories of revelation relativize all philosophical knowledge, rendering any ideological claim to absolute truth impossible. The difference between their two theories, then, lies in how they understand the relationship between philosophy and theology. For Barth, philosophy’s attempts to make itself absolute is a produce of sinful human vanity; its corrective is thus an authentic revealed theology, which Barth articulates in Christian, dogmatic terms. Marion, on the other hand, equipped with Heidegger’s critique of ontotheology, highlights one specific kind of philosophizing—metaphysics—as generative of ideology. To counter metaphysics, Marion draws heavily on Barth’s account of revelation but secularizes it, reinterpreting the ‚event’ as the saturated phenomenon. Revelation’s unpredictability is thus preserved within Marion’s philosophy, but is no longer restricted to the appearing of God. Both understandings of revelation achieve the same epistemological result, however. Reality can never be rendered transparent to thought; within history, all truth is provisional. A concept of revelation drawn originally from Christian theology thus, counterintuitively, is what secures philosophy’s right to challenge and critique the pre-given, a hermeneutic freedom I suggest is the meaning of sola scriptura.


Paragraph ◽  
2021 ◽  
Vol 44 (2) ◽  
pp. 238-256
Author(s):  
Andrew Sackin-Poll

This article addresses the question of the relationship between corporeality and the ordinary in the works of François Laruelle. This is done through the formulation of the ‘ordinary body’ that draws from across Laruelle's work on the ordinary, corporeality and photography in order to outline Laruelle's radically immanent account of embodiment. The critical outline of Laruellean corporeality and the ordinary body is drawn out via a critical posing of Laruelle in contrast to Deleuze and Guattari. In doing so, the article indicates the singular difference between Laruelle, on one side, and Deleuze and Guattari, on the other, with respect to corporeal immanence and the usage of the everyday and ordinary. The article concludes with an argument that the relationship between the body and the ordinary in Laruelle's thought implies a novel non-philosophical or non-standard ‘poetics’ and usage of the ordinary.


1867 ◽  
Vol 15 ◽  
pp. 220-222

In a paper “ On the Expansion by Heat of Water and Mercury” *, a method of determining the expansion of bodies is described, by which good results can be obtained with comparatively small quantities of the substances to be experimented with. This method, that of weighing the body in water at different temperatures, has been employed for the present research. The results obtained are given in the following Tables:— From the above the following conclusion is drawn-namely, that just as it may be said that the specific gravity of an alloy is approximately equal to the mean specific gravities of the component metals , so also from the foregoing we may deduce that the volume which an alloy will occupy at any temperature between 0° and 100° is approximately equal to the mean of the volumes o f the component metals at the same temperature, or, in the other words, the cubical or linear coefficients o f expansion by heat of an alloy between 0° and 100° are approximately equal to the mean of the cubical or linear coefficients of expansion by heat o f the component metals .


2007 ◽  
Vol 23 (1-2) ◽  
pp. 13-20
Author(s):  
Andrey Kurtenkov

It is related leg problems to the realization of the necessity of doing a detailed analysis of the phenotype correlations between body weight and exterior measurements. As a result of the study, lower coefficients have been obtained of the correlation between the girth of the tarso metatarsus on one hand, and the body weight and the girth behind the wings, on the other hand (respectively 0.563 and 0.608), compared with the one between the body weight and the girth behind the wings (0.898). It is advisable in the selection of ostriches to take into consideration the necessity of a higher phenotypic correlation between the girth of the tarso metatarsus on the one hand, and the body weight and the girth behind the wings on the other hand, with a view to preventing leg problems.


2021 ◽  
pp. 37-47
Author(s):  
BORIS KORDIĆ

The problems of relations of authority and power, authority and violence, authority and security in today's world point to the need to continually write about and discuss the authority. The paper proceeds from the ontological understanding of authority as a voluntary activity that is done because the actor believes the other person will watch their activity with approval. After that the results of research on the relationship of authority and obedience are problematized, and the question is raised about reasons for rejecting obedience. The difference of internal and external authorities is introduced and then analysed the emergence and development of the internal authority according to psychoanalytic theories. It turns out that the internal authority is attached to the inner true being of man and is based on caring for other people. Development of internal authority can set us free of coercion of outside authorities and help in coping and fight against human destructiveness.


Parasitology ◽  
1941 ◽  
Vol 33 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Kenneth M. Smith

Extracts of caterpillars and other insects are shown to inhibit the infective power of tobacco mosaic and tobacco necrosis viruses. The inhibitor is not sedimented after spinning for 2½ hr. at 30,000 r.p.m. Experiments with non-vector insects such as caterpillars have shown that the virus of sugar-beet curly-top, of tobacco ringspot and other viruses, are destroyed within the body of the insect. On the other hand, tobacco mosaic virus passes through the body of the caterpillar unchanged though greatly reduced in concentration. By the use of the specific insect vector and artificial feeding methods it was possible to recover the virus of curly-top 24 hr. after it had been injected into the blood of the caterpillar but the viruses of tobacco mosaic and tobacco necrosis could not be so recovered. Experimental evidence is given to show that the virus of beet curly-top is present in the saliva of viruliferous insects.


2019 ◽  
Vol 29 (Supplement_4) ◽  
Author(s):  
D Caiazzo ◽  
L Kundisowa ◽  
G Bocci ◽  
N Vonci ◽  
L Alaimo ◽  
...  

Abstract Introduction Resilience is the ability to resist, cope with life positively after suffering a negative event. Midwifery has been defined as ’emotionally demanding’; midwives with an higher levels of resilience experience higher levels of subjective well-being (SWB). The aim of this study was to evaluate the relationship between resilience and SWB amongst midwives. Materials and methods Data were collected using a questionnaire, distributed between September 2018-January 2019 in hospitals in the Tuscany region (Italy). For evaluation of SWB, we used OECD scale (2013) evaluating three items: actual happiness (AH); emotive wellbeing (BE) composed of positive (PA) and negative affect (NA) and life satisfaction (LS). Also, job satisfaction (JS) was evaluated. Resilience (RS) was evaluated using the Italian version of the Resilience Scale by Wagnild and Young. All items were expressed on the Likert scale, statistical analysis was performed with Minitab 18. Results In total 123 questionnaires were analyzed. The average scores were: AH: 6.9±1.8; BE: 5.9±1.6; PA: 6.0±1.8; NA: 4.2±2.1; LS: 7.1±1.6; JS: 6.5 ± 2.4. Average R was 130.3±18.1. RS was correlated (p < 0.001) to AH (Coef=0.4), PA (Coef=0.4), BE (Coef=0.3) e LS (Coef=0.4). The sample was divided into three groups according to RS: low (LR)<116, medium (MR):116-139 and high (HR) ≥140. MR represented 44%, followed by HR (35%). AH, PA, BE values were significantly higher in the HR group (ANOVA; Tukey; p < 0.001). For NA the highest values were observed in the LR group, but the difference was not significant. LS resulted significantly lower in LR group (ANOVA; Tukey; p < 0.001) and JS was significantly higher in medium resilience group in confrontation to other two groups (ANOVA; Tukey; p < 0.001). Conclusions Our results confirmed, that the higher levels of RS influenced positively almost all components of SWB (AH, PA, BE, LS). On the other hand to achieve a higher level of JS the level of RS should not be nor too high, nor too low. Key messages Midwifery has been defined as ’emotionally demanding’, higher levels of resilience influenced positively almost all components of subjective wellbeing. The medium resilience was correlated to higher level of job satisfaction.


Author(s):  
R. C. Newell ◽  
H. R. Northcroft

The rate of cirral beat of Balanus balanoides is related to the logarithm of the body weight as an exponential function. In any one animal, there is little effect of temperature on cirral activity between 7·5° and 10° C. Between 10° and 20° C, however, there is a rapid increase in cirral beat with temperature followed by a fall at temperatures above 20° C.Balanus balanoides exhibits a fast, medium and zero rate of oxygen consumption. These rates of oxygen consumption correspond with (a) normal cirral beating, (b) ‘testing’ activity with no cirral movement, and (c) with the closure of the mantle cavity. Both of the possible levels of oxygen uptake are related to the logarithm of the body weight in a logarithmic fashion over the temperature range 7·5°–22·5° C. Temperature affects the two rates of oxygen consumption differently. In the slower rate (rate B) there is an increase in the rate of oxygen consumption between 7·5° and 14° C but there is no significant increase in the rate of oxygen consumption between 14° and 22·5 C°.


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