The Limits of Conversation

2021 ◽  
pp. 103-110
Author(s):  
Amia Srinivasan

This commentary raises a series of questions for Philip Kitcher’s theory of moral progress. First, does the history of moral progress really challenge metaethical realism, as Kitcher claims—or the liberal fantasy that we are all equally equipped to get onto the moral truth? Second, is Kitcher’s theory really, as he claims, morally neutral—or does his notion of “ideal” deliberation smuggle in substantive normative claims? Both questions point toward a different way of reading Kitcher’s proposal: not as a metaethical theory of moral truth, but as a substantive, first-order procedure for achieving moral progress. But Kitcher’s proposal falsely presupposes that the history of moral progress has been a history of conversation, when in fact it has, in large part, been a history of power: the wielding of power by the dominant against the oppressed, and the eventual seizing of that power by the dominated.

2010 ◽  
Vol 7 (1) ◽  
pp. 37-53 ◽  
Author(s):  

AbstractThe history of ethics contains many moral faculty theories, which usually are sorted by their metaphysics. The usual suspects include moral rationalism (Richard Price, Kant), moral sentiment theory (Hutcheson, Hume, Smith) and the varieties of ethical naturalism. Moral faculty theories differ importantly upon yet another dimension, on how widely it is distributed. Some, the Platonic elitists (Plato, J.S. Mill, R.M. Hare), suppose that moral truth can be discerned only by philosophical argument. Hence, they ascribe a revisionary task to normative theory, that of correcting nonphilosophers' moral errors. Others, the communalists (Aquinas, Hume, W.D. Ross), hold that the moral faculty is universally distributed. Hence, they hold that normative theory's task is not to revise, but rather to discern and explain the shared moral conception that we all apply in our ordinary moral lives. I here offer arguments to support commonalism.


1994 ◽  
Vol 48 (6) ◽  
pp. 733-736 ◽  
Author(s):  
N. T. McDevitt ◽  
J. S. Zabinski ◽  
M. S. Donley ◽  
J. E. Bultman

Crystalline disorder in thin films plays an important role in determining their properties. Disorder in the crystal structure of MoS2 films prepared by magnetron sputtering and pulsed laser deposition was evaluated with the use of Raman spectroscopy. The peak positions and bandwidths of the first-order Raman bands, in the region 100 to 500 cm−1, were used as a measure of crystalline order. In addition, a low-frequency feature was observed at 223 cm−1 that is not part of the normal first-order spectrum of a fully crystalline specimen. Data presented here demonstrate that this band is characteristic of crystalline disorder, and its intensity depends on the annealing history of the film. This behavior seems to be analogous to the disorder found in graphite thin films.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jiashun Hu ◽  
Lijun Liu ◽  
Michael Gurnis

AbstractGrowth of the Andes has been attributed to Cenozoic subduction. Although climatic and tectonic processes have been proposed to be first-order mechanisms, their interaction and respective contributions remain largely unclear. Here, we apply three-dimensional, fully-dynamic subduction models to investigate the effect of trench-axial sediment transport and subduction on Andean growth, a mechanism that involves both climatic and tectonic processes. We find that the thickness of trench-fill sediments, a proxy of plate coupling (with less sediments causing stronger coupling), exerts an important influence on the pattern of crustal shortening along the Andes. The southward migrating Juan Fernandez Ridge acts as a barrier to the northward flowing trench sediments, thus expanding the zone of plate coupling southward through time. Consequently, the predicted history of Andean shortening is consistent with observations. Southward expanding crustal shortening matches the kinematic history of inferred compression. These results demonstrate the importance of climate-tectonic interaction on mountain building.


Etyka ◽  
1974 ◽  
Vol 13 ◽  
pp. 121-125
Author(s):  
Vasile Popescu

The author describes briefly the activities of different ethical centres and gives a survey of the principle directions of ethical research in Romania. These include primarily normative problems (such as moral progress, the structure of moral consciousness, marital and family morals, the ethics of labour, socialist humanism), the theoretical problems (the relation of ethics to science, the sociology of morals, the history of morals, and a critique of contemporary ethical systems) and translations of classical ethical works. The recent publication of a project for a code of socialist morality gives evidence of the advance and significance of ethical research in Romania.


1979 ◽  
Vol 101 (3) ◽  
pp. 213-217 ◽  
Author(s):  
N. A. Moussa ◽  
E. N. Tell ◽  
E. G. Cravalho

Populations of erythrocytes in solution were heated “instantaneously” to and maintained at temperatures in the range of 44 to 60°C on a microscope stage specifically designed for this purpose. Simultaneously, the visually observed hemolysis-time history of these cells was measured. The results were successfully correlated on the basis of two models: 1) a kinetic scheme assuming two sequential, first-order reactions by which the cells are first reversibly altered and then irreversibly damaged; and 2) a statistical model for which the number of cells that are damaged at each instant is assumed to be normally distributed. From the experimental data the rate constants for the two reactions in the kinetic model were determined and were found to have an Arrhenius dependence on temperature. By applying the statistical model to the data, we were able to determine the mean and standard deviation of the distribution curve for this model. The logarithms of these latter two parameters vary with temperature in a linear fashion.


2010 ◽  
Vol 31 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Kristen Cecala ◽  
Michael Dorcas ◽  
Steven Price

AbstractThe juvenile stage for many reptiles is considered “the lost years” because of low capture probabilities, however understanding factors impacting juvenile survivorship and recruitment is critical for conservation of populations. We studied the ecology of juvenile Northern watersnakes, Nerodia sipedon, by intensively sampling a first-order stream and determined the occupancy of juveniles in 30 low-order streams in the Piedmont of North Carolina. Juveniles were relatively abundant within a single stream (n = 62 ± 9), and their capture probabilities were positively related to increasing stream-water temperatures. We also found that juveniles had high survivorship (ϕ = 0.87 ± 0.017). Occupancy of juvenile N. sipedon in low-order, Piedmont streams may be greater at streams that have confluences with high order streams or lakes, which potentially support adult N. sipedon populations. This study provides important information regarding the natural history of juvenile reptiles and indicates the importance of low order streams as habitat for N. sipedon populations.


2018 ◽  
Vol 5 (2) ◽  
pp. 201-210
Author(s):  
Muchamad Subali Noto ◽  
Siska Firmasari ◽  
Mohammad Fatchurrohman

Tujuan penelitian ini adalah untuk mengetahui kontribusi aspek-aspek matematika pada sumur purbakala, sejarahnya, proses berpikir matematis dalam pembuatan sumur, dan proses pembelajaran matematika di sekolah. Hasil penelitian ini disajikan dalam bentuk kualitatif untuk mendeskripsikan tentang sejarah sumur purbakala. Bentuk bangunan sumur menggambarkan sebuah bangun datar seperti segitiga, segilima, persegi panjang, jajar genjang, trapesium, lingkaran, dan bangun ruang seperti balok dan tabung, yang merupakan aspek-aspek matematika pada materi geometri. Proses pembuatan sumur yang berbentuk lingkaran dapat dilakukan dengan segi-n yang didekati oleh limit n menuju tak hingga yang dilihat dari banyaknya batu bata pada susunan pertama dan banyaknya susunan pada pembuatan sumur. Hasil penelitian ini juga berkaitan dengan proses pembelajaran matematika di sekolah, seperti materi segitiga dan segiempat di SMP serta aturan sinus dan cosinus di SMA. Diharapkan hasil penelitian ini dapat dijadikan bahan ajar pada jenjang sekolah menengah ataupun referensi untuk penelitian lain di bidang budaya dan matematika. Ethnomathematics at the sumur purbakala Kaliwadas Village of Cirebon and relationship with mathematics learning in school AbstractThe purpose of this research is to know the mathematical aspects of sumur purbakala, its history, the process of mathematical thinking in the making of well, and the process of learning mathematics in school. The results of this research are presented in qualitative form to describe the history of the sumur purbakala. The shape of the building is constructed like a triangle, a pentagon, a rectangle, a parallelogram, a trapezoid, a circle, and a space-building like beams and tubes, which are the mathematical aspects of the material geometry. The process of making a well in the form of a circle can be done with the n-segments approximated by the boundary n to the not until seen from the number of bricks in the first order and the number of arrangements on the well-making. The results of this study are also related to the process of learning mathematics in schools, such as triangle and quadrilateral materials in junior high and the rules of sinus and cosine in high school. It is expected that the results of this study can be used as teaching materials at the level of the school and references to other research in the field of culture and mathematics.


Author(s):  
E.I. Gordon

This and forthcoming articles discuss two of the most known nonstandard methods of analysis---the Robinsons infinitesimal analysis and the Boolean valued analysis, the history of their origination, common features, differences, applications and prospects. This article contains a review of infinitesimal analysis and the original method of forcing. The presentation is intended for a reader who is familiar only with the most basic concepts of mathematical logic---the language of first-order predicate logic and its interpretations. It is also desirable to have some idea of the formal proofs and the Zermelo--Fraenkel axiomatics of the set theory. In presenting the infinitesimal analysis, special attention is paid to formalizing the sentences of ordinary mathematics in a first-order language for a superstructure. The presentation of the forcing method is preceded by a brief review of C.Godels result on the compatibility of the Axiom of Choice and the Continuum Hypothesis with Zermelo--Fraenkels axiomatics. The forthcoming article is devoted to Boolean valued models and to the Boolean valued analysis, with particular attention to the history of its origination.


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