Immorality or Immortality? An Argument for Virtue

In the 5th century a number of sophists challenged the orthodox understanding of morality and claimed that practicing injustice was the best and most profitable way for an individual to live. Although a number of responses to sophistic immoralism were made, one argument, in fact coming from a pair of sophists, has not received the attention it deserves. According to the argument I call Immortal Repute, self-interested individuals should reject immorality and cultivate virtue instead, for only a virtuous agent can win the sort everlasting reputation that makes a life truly admirable and successful

Legein to What End?

In the 5th century a number of sophists challenged the orthodox understanding of morality and claimed that practicing injustice was the best and most profitable way for an individual to live. Although a number of responses to sophistic immoralism were made, one argument, in fact coming from a pair of sophists, has not received the attention it deserves. According to the argument I call Immortal Repute, self-interested individuals should reject immorality and cultivate virtue instead, for only a virtuous agent can win the sort of everlasting reputation that makes a life truly admirable and successful

A study of saturated tensor cone for symmetrizable Kac-Moody algebras

Let \fg be a symmetrizable Kac-Moody Lie algebra with the standard Cartan subalgebra \fh and the Weyl group $W$. Let $P_+$ be the set of dominant integral weights. For $\lambda \in P_+$, let $L(\lambda)$ be the irreducible, integrable, highest weight representation of \fg with highest weight $\lambda$. For a positive integer $s$, define the {\em saturated tensor semigroup} as \begin{align*} \Gamma_s:= \{(\lambda_1, \dots, \lambda_s,\mu)\in P_+^{s+1}: \exists\, N>1 \,\,\text{with}\,\, L(N\mu)\subset L(N\lambda_1)\otimes \dots \otimes L(N\lambda_s)\}. \end{align*} The aim of this paper is to begin a systematic study of $\Gamma_s$ in the infinite dimensional symmetrizable Kac-Moody case. In this paper, we produce a set of necessary inequalities satisfied by $\Gamma_s$. We further prove that any integer $d>0$ is a saturation factor for $A^{(1)}_1$ and 4 is a saturation factor for $A^{(2)}_2$.Comment: 30 page

The chest x-ray in delayed presentation of coarctation of the aorta

This article shows the chest radiograph of a thirteen-year-old male. The study demonstrates bilateral notching of the inferior borders of the 3rd-8th posterior ribs, a finding associated with coarctation of the aorta. Blood bypasses the aortic narrowing through intercostal collaterals, which enlarge to accommodate the increased flow rates. The pulsations of these vessels cause disruption to bone remodelling leading to the characteristic notching.peer-reviewe

Stabilization of gravity oriented satellites Patent

Stabilization system for gravity-oriented satellites using single damper ro

Joint Ultra-wideband and Signal Strength-based Through-building Tracking for Tactical Operations

Accurate device free localization (DFL) based on received signal strength (RSS) measurements requires placement of radio transceivers on all sides of the target area. Accuracy degrades dramatically if sensors do not surround the area. However, law enforcement officers sometimes face situations where it is not possible or practical to place sensors on all sides of the target room or building. For example, for an armed subject barricaded in a motel room, police may be able to place sensors in adjacent rooms, but not in front of the room, where the subject would see them. In this paper, we show that using two ultra-wideband (UWB) impulse radios, in addition to multiple RSS sensors, improves the localization accuracy, particularly on the axis where no sensors are placed (which we call the x-axis). We introduce three methods for combining the RSS and UWB data. By using UWB radios together with RSS sensors, it is still possible to localize a person through walls even when the devices are placed only on two sides of the target area. Including the data from the UWB radios can reduce the localization area of uncertainty by more than 60%.Comment: 9 pages, conference submissio

Irradiation effects studies of NERVA materials

Several materials used in the NERVA project were irradiated at cryogenic temperatures to neutron fluences between 10 to the 17th and 10 to the 19th power newtons per square centimeter. Tensile properties were determined over a temperature range to evaluate the effects of irradiation on the material properties. The expected radiation damage typical of other materials was observed. A general increase in strength and decrease in ductility occurred. The effects at liquid nitrogen temperatures are more pronounced since radiation induced defects are not annealed out