4,111,866 research outputs found
Dignity, Self-Respect, and Bloodless Invasions
In Chapter 7, “Dignity, Self-Respect, and Bloodless Invasions”, Saba Bazargan-Forward asks How much violence can we impose on those attempting to politically subjugate us? According to Bazargan-Forward, “reductive individualism” answers this question by determining how much violence one can impose on an individual wrongly attempting to prevent one from political participation. Some have argued that the amount of violence one can permissibly impose in such situations is decidedly sub-lethal. Accordingly, this counterintuitive response has cast doubt on the reductive individualist project. Bazargan-Forward argues, however, that political subjugation involves an institutionally embodied form of disrespect that has been altogether missed. A proper appreciation of this sort of disrespect, he contends, morally permits much greater defensive violence against those attempting to politically subjugate us or others
Designing professional learning
The Designing Professional Learning report provides a snapshot of the key elements involved in creating effective and engaging professional learning in a globally dispersed market. AITSL commissioned Learning Forward to undertake this study to give greater guidance around the ‘how’ of professional learning. Learning design involves making careful decisions based on an integration of theories, research and models of human learning in order to contribute to the effectiveness of professional learning. This work is not presented as definitive findings, but seeks to draw attention to observed trends and areas of commonality between learning designs that have demonstrated success.
Following an analysis of a broad range of professional learning activities, a Learning Design Anatomy was developed to provide a framework for understanding the elements of effective professional learning. Each learning design element is framed by a detailed series of questions that challenge users to refine and clarify aims, intended learning outcomes and the most effective ways in which to engage—taking into consideration the unique context for learning. Examples of professional learning design are provided to illustrate elements of the Anatomy.
The report is designed to be of use to teachers, school leaders, policy makers, system administrators and professional learning providers. It is intended that this report and the Anatomy will serve as provocation for a broader conversation about the composition of professional learning and the elements that establish the strongest correlation between participants, environment, delivery and action
Defensive Liability Without Culpability
A minimally responsible threatener is someone who bears some responsibility for imposing an objectively wrongful threat, but whose responsibility does not rise to the level of culpability. Minimally responsible threateners include those who knowingly commit a wrongful harm under duress, those who are epistemically justified but mistaken in their belief that a morally risky activity will not cause a wrongful harm, and those who commit a harm while suffering from a cognitive impairment which makes it prohibitively difficult to recognize and act on what is morally required of them. The chapter argues that minimally responsible threateners can indeed be morally liable for the harms they impose. Put differently, culpability is not a necessary basis for liability
Accountability and Intervening Agency: An Asymmetry between Upstream and Downstream Actors
Suppose someone (P1) does something that is wrongful only in virtue of the risk that it will enable another person (P2) to commit a wrongdoing. Suppose further that P1’s conduct does indeed turn out to enable P2’s wrongdoing. The resulting wrong is agentially mediated: P1 is an enabling agent and P2 is an intervening agent. Whereas the literature on intervening agency focuses on whether P2’s status as an intervening agent makes P1’s conduct less bad, I turn this issue on its head by investigating whether P1’s status as an enabling agent makes P2’s conduct more bad. I argue that it does: P2 wrongs not just the victims of ϕ but P1 as well, by acting in a way that wrongfully makes P1 accountable for ϕ. This has serious implications for compensatory and defensive liability in cases of agentially mediated wrongs
Complicity
Complicity marks out a way that one person can be liable to sanctions for the wrongful conduct of another. After describing the concept and role of complicity in the law, I argue that much of the motivation for presenting complicity as a separate basis of criminal liability is misplaced; paradigmatic cases of complicity can be assimilated into standard causation-based accounts of criminal liability. But unlike others who make this sort of claim I argue that there is still room for genuine complicity in the law and in morality. In defending this claim, I sketch an approach to complicity which grounds our liability for what others do not in our causal relation to their actions but in our “agency-relations” with others. In such cases, one agent can be liable for the wrongs of second agent to the extent that first authorizes the second to act at her behest. This approach fills the gap where standard causation-based accounts of complicity fail – especially in where several agents cooperatively contribute to an overdetermined harm
Research on gravitational mass sensors Research contract status report, 15 Sep. - 15 Oct. 1965
Gravitational mass sensor - piezoresistive and barium titanate transducers, and torsional stress sensor
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Social and democratic participation in residential settings for older people: realities and aspiration
This paper explores some of the experiences of older people living in residential settings (sheltered, very sheltered housing and residential care), in the context of theories of participation, consumerism and citizenship. It draws on material from personal interviews undertaken with over 100 older people in England and Wales, and also from discussions with staff. Two-thirds of respondents were aged over 85. A significant minority of residents expressed some concerns about the routines of life, such as meals and social contact. Staff expectations of social participation were often unrealistic : for many residents, social contact was more a matter of adjustment than of friendship. Residents did not participate in deciding how the residential settings where they lived should be organised and managed, except for helping with simple domestic tasks. There is a need to change both attitudes and practice to enable older people to participate more fully in these settings
A Gedanken spacecraft that operates using the quantum vacuum (Dynamic Casimir effect)
Conventional rockets are not a suitable technology for deep space missions.
Chemical rockets require a very large weight of propellant, travel very slowly
compared to light speed, and require significant energy to maintain operation
over periods of years. For example, the 722 kg Voyager spacecraft required
13,600 kg of propellant to launch and would take about 80,000 years to reach
the nearest star, Proxima Centauri, about 4.3 light years away. There have been
various attempts at developing ideas on which one might base a spacecraft that
would permit deep space travel, such as spacewarps. In this paper we consider
another suggestion from science fiction and explore how the quantum vacuum
might be utilized in the creation of a novel spacecraft. The spacecraft is
based on the dynamic Casimir effect, in which electromagnetic radiation is
emitted when an uncharged mirror is properly accelerated in the vacuum. The
radiative reaction produces a dissipative force on the mirror that tends to
resist the acceleration of the mirror. This force can be used to accelerate a
spacecraft attached to the mirror. We also show that, in principal, one could
obtain the power to operate the accelerated mirror in such a spacecraft using
energy extracted from the quantum vacuum using the standard Casimir effect
witha parallel plate geometry. Unfortunately the method as currently conceived
generates a miniscule thrust, and is no more practical than a spacewarp, yet it
does provide an interesting demonstration of our current understanding of the
physics of the quantized electromagnetic field in vacuum.Comment: 18 pages, 3 figure
Light levitated geostationary cylindrical orbits are feasible
This paper discusses a new family of non-Keplerian orbits for solar sail spacecraft displaced above or below the Earth's equatorial plane. The work aims to prove the assertion in the literature that displaced geostationary orbits exist, possibly to increase the number of available slots for geostationary communications satellites. The existence of displaced non-Keplerian periodic orbits is ¯rst shown analytically by linearization of the solar sail dynamics around a geostationary point. The full displaced periodic solution of the non-linear equations of motion is then obtained using a Hermite-Simpson collocation method with inequality path constraints. The initial guess to the collocation method is given by the linearized solution and the inequality path constraints are enforced as a box around the linearized solution. The linear and nonlinear displaced periodic orbits are also obtained for the worst-case Sun-sail orientation at the solstices. Near-term and high-performance sails can be displaced between 10 km and 25 km above the Earth's equatorial plane during the summer solstice, while a perforated sail can be displaced above the usual station-keeping box (75 £ 75 km) of nominal geostationary satellites. Light-levitated orbit applications to Space Solar Power are also considered
Business cycles and stock market performance in South Africa
The study investigates the relationship between stock market performance and business cycles in South Africa for the period 2002-2009 using monthly data. This is done by constructing a Vector Error Correction Model (VECM). The study specifies a business cycle model with the business cycle coincident indicator (BC) regressed against, the All Share Price Index (ALSI), Real Effective Exchange Rate (REER), Money Supply (M1), Inflation (CPIX) and the Prime Overdraft Rate (POR). The ALSI represents stock market performance whilst the rest of the variables are to enhance model specification. The study found a positive relationship between stock market performance and business cycles in South Africa. The results also indicated that business cycles are positively related to the lagged variable of the coincident indicator and money supply. In addition, the findings also reveal that BC is negatively related to interest rates and the real effective exchange rate
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