Thinking outside the blocks

This paper outlines an ongoing PhD research with the aim to develop an alternative fashion design and garment construction process for the initial design stages, using a practice initiated in three dimensions. The paper was partly triggered by views that meanwhile, especially in design education, there is a need to underline more the practical aspects of the design and making process, for example pattern cutting skills. One industry commentator said: “We have often taken on ex-fashion students either as staff or for work experience, and the majority have never been taught pattern-cutting, yet expecting glittering careers in design” (Everett, 2008) The nature of this design practice research utilizes tacit knowledge. It was therefore necessary to find a method to express such tacit knowledge in a tangible form. Due to its exploratory nature and the need for substantial iterative practical work, the reflective, practice-oriented approach of Action Research was used as lead methodology

(WP 2004-01) Inappropriate Pooling of Wealthy and Poor Countries in Empirical FDI Studies

This paper examines the question of whether less-developed countries\u27 (LDCs\u27) experiences with foreign direct investment (FDI) systematically different from those of developed countries (DCs). We do this by examining three types of empirical FDI studies that typically do not distinguish between LDCs and DCs in their analysis. First, we find that the underlying factors that determine the location of FDI activity across countries vary systematically across LDCs and DCs in a way that is not captured by current empirical models of FDI. Second, the effect of FDI on economic growth is one that is only supported for LDCs in the aggregate data, not DCs. Third, the evidence suggests that FDI is much less likely to crowd out (more likely to crowd in) domestic investment for LDCs than DCs

Inter-Temporal Investment in Climate Change Adaptation and Mitigation

Currently, different dimensions of mitigation strategies have been investigated in policy analysis. However, ambitious mitigation action aiming at reducing future climate change will not prevent much climate change before mid-century. Short-term and medium-term temperature as well as associated damages cannot be avoided completely. Increasingly there appears to be recognition of the need to simultaneously implement adaptation and mitigation. However, the optimal combination between adaptation and mitigation that can best address climate change over time is still an open question. Literature base is rather small, yet very diverse and inconsistent in conclusions. In this paper, we do an exploration of the temporal optimal investment mix between adaptation and mitigation and their relative contributions to climate change damage reduction. By proposing a conceptual framework that integrates both strategies and developing a more complete integrated assessment model, the temporal investment allocation between adaptation and mitigation is identified. Results suggest that adaptation is an effective climate change damages reduction strategy and a complement to mitigation. Adaptation investment tackles the short run reduction of damages in the first 250 years while mitigation dominates from thereon.Climate Change Damages, Adaptation, Mitigation, Temporal Investment, Integrated Assessment Model, Environmental Economics and Policy, Resource /Energy Economics and Policy, Risk and Uncertainty, Q54, Q58,

Inappropriate Pooling of Wealthy and Poor Countries in Empirical FDI Studies

This paper examines the question of whether less-developed countries' (LDCs') experiences with foreign direct investment (FDI) systematically different from those of developed countries (DCs). We do this by examining three types of empirical FDI studies that typically do not distinguish between LDCs and DCs in their analysis. First, we find that the underlying factors that determine the location of FDI activity across countries vary systematically across LDCs and DCs in a way that is not captured by current empirical models of FDI. Second, the effect of FDI on economic growth is one that is only supported for LDCs in the aggregate data, not DCs. Third, the evidence suggests that FDI is much less likely to crowd out (more likely to crowd in) domestic investment for LDCs than DCs.

Low SNR Capacity of Noncoherent Fading Channels

Discrete-time Rayleigh fading single-input single-output (SISO) and multiple-input multiple-output (MIMO) channels are considered, with no channel state information at the transmitter or the receiver. The fading is assumed to be stationary and correlated in time, but independent from antenna to antenna. Peak-power and average-power constraints are imposed on the transmit antennas. For MIMO channels, these constraints are either imposed on the sum over antennas, or on each individual antenna. For SISO channels and MIMO channels with sum power constraints, the asymptotic capacity as the peak signal-to-noise ratio tends to zero is identified; for MIMO channels with individual power constraints, this asymptotic capacity is obtained for a class of channels called transmit separable channels. The results for MIMO channels with individual power constraints are carried over to SISO channels with delay spread (i.e. frequency selective fading).Comment: submitted to IEEE I

The Growth of Oligarchy in a Yard-Sale Model of Asset Exchange: A Logistic Equation for Wealth Condensation

The addition of wealth-attained advantage (WAA) to the Yard-Sale Model (YSM) of asset exchange has been demonstrated to induce wealth condensation. In a model of WAA for which the bias is a continuous function of the wealth difference of the transacting agents, the condensation was shown to arise from a second-order phase transition to a coexistence regime. In this paper, we present the first analytic time-dependent results for this model, by showing that the condensed wealth obeys a logistic equation in time.Comment: 15 pages, 2 figure

Gender Differences in Current Received during Transcranial Electrical Stimulation.

Low current transcranial electrical stimulation (tCS) is an effective but somewhat inconsistent tool for augmenting neuromodulation. In this study, we used 3D MRI guided electrical transcranial stimulation modeling to estimate the range of current intensities received at cortical brain tissues. Combined T1, T2, and proton density MRIs from 24 adult subjects (12 male and 12 female) were modeled with virtual electrodes placed at F3, F4, C3, and C4. Two sizes of electrodes 20 mm round and 50 mm × 45 mm were examined at 0.5, 1, and 2 mA input currents. The intensity of current received was sampled in a 1-cm sphere placed at the cortex directly under each scalp electrode. There was a 10-fold difference in the amount of current received by individuals. A large gender difference was observed with female subjects receiving significantly less current at targeted parietal cortex than male subjects when stimulated at identical current levels (P < 0.05). Larger electrodes delivered somewhat larger amounts of current than the smaller ones (P < 0.01). Electrodes in the frontal regions delivered less current than those in the parietal region (P < 0.05). There were large individual differences in current levels that the subjects received. Analysis of the cranial bone showed that the gender difference and the frontal parietal differences are due to differences in cranial bone. Males have more cancelous parietal bone and females more dense parietal bone (P < 0.01). These differences should be considered when planning tCS studies and call into question earlier reports of gender differences due to hormonal influences