Where the headquarters are – evidence from large public companies 1990-2000

This paper examines the location of headquarter growth of large public companies during the 1990s. Headquarters continue to be attracted by large metropolitan areas. Yet among that group they continue to disperse into medium-sized centers. This paper identifies 6 different categories of gross flows underlying the net change of headquarters observed during the 90s. There is strong variation among the 50 largest metro areas in terms of the composition of these gross flows. On average, entry and exit represent over 2/3 of all gross flow activity. Pure relocation of headquarters is found to lead to urbanization. Mergers tend to not impact the distributing of headquarters across MSAs. A binomial probability model of the decision to move utilizes company-level as well as MSA- level data and finds that MSA-level amenities impact the choice to move.Industrial location ; Metropolitan areas - Statistics

Some studies on cytotoxic plant extracts

Imperial Users onl

Can shared surfaces be safely negotiated by blind and partially sighted people?

‘Shared Space’ schemes are designed to remove the physical distinction between pedestrian space and traffic space in the street environment to encourage more pedestrians to use the area. They may also make it easier for people with wheelchairs, prams or similar to negotiate the space. However, by removing the kerbs, blind and partially sighted people lose one of the key references that they normally use to know they are in a safe space away from vehicles and to navigate around the area. This study is intended to understand what people with visual impairments need from a surface to make it clearly detectable, given that it should not be a barrier to progress for people with other mobility limitations. With this information, some surfaces were tested to determine their suitability as a delineator. Approach and/or Methodology An experimental approach was adopted. People with mobility impairments and blind and partially sighted people were recruited. All participants used the normal street environment unaccompanied. The blind and partially sighted participants included people who use a guide dog, those who use a long cane and those who use no assistive device. The people with mobility impairments all used some form of mobility aid for example walking stick or wheelchair. The tests were run in the pedestrian testing facility PAMELA at UCL. The top surface of the test facility was predominantly concrete paving slab, but with test surfaces discretely located. The task for all participants was to travel from one designated place in the test area to another. For some of these trials the participant would encounter one of the test surfaces, but on other trials they would not. After each trial the participants were asked to rate how easy it was to detect a change in surface, or how easy it was to pass over the surface. The different surfaces included blister paving, corduroy paving, a central delineator, slopes, roughened surfaces, and traditional kerb upstands of different heights. Results or Expected Results None of the 400mm wide surfaces was detected by all participants. Changes in level through slopes were considered both positively and negatively, some people asking for steeper gradients and some less steep. Kerb heights below 60mm were not reliably detectable by blind or partially sighted people and are an obstacle to people in wheelchairs. Further tests on more surfaces are in process and the results will be incorporated into this paper. Conclusion Early suggestions for detectable surfaces – proposed in UK schemes - have been either a barrier to people with mobility impairments, or difficult to detect for blind and partially sighted people or both. The work presented in this paper shows the difficulty in finding a suitable dual purpose surface, yet clarifies the design requirements for shared space delineators for people with mobility impairments and blind or partially sighted people. This work has reinforced the point that 400mm width is insufficient to be used as a tactile surface. Further conclusions will be made after the additional surface tests. Topic Code: Ca C. Accessibility concerns and solutions for those with cognitive and sensory impairment a. Pedestrian safety at crossings and intersection

Holt v. Grange Mut. Cas. Co. Children Not Insureds Under Policy are Entitled to Death

The recent Ohio Supreme Court decision of Holt v. Grange Mutual Casualty Co., is a consumer friendly decision and represents both an equitable and sound interpretation and application of Ohio law to consumer insurance contracts.The decision in Holt favors insurance consumers but has alarmed the insurance industry. The industry perceives the decision as bringing into question what language of an insurance policy will be upheld under the freedom of contract and what will be stricken as against public policy. First, the industry would argue that Holt seems to denigrate and abrogate the rights of an uninsurance/underinsurance provider to craft its policies according to basic clear unambiguous language and contract principles. Second, the decision could be viewed as creating confusion and instability regarding what provisions insurers may rightfully include in their policies in order to limit their liability to the public in general. Third, insurance actuaries would state they have uncertainty in calculating how much an average car owner will need to pay to take into account these perceived abrogations of the right to contract. Lastly, the decision in Holt sends a message to consumers that they may challenge a policy\u27s plain language and may recover for losses under public policy principles, even if the strict letter of the insurance policy would prohibit recovery.Thus, insurers and insureds will continue to be impacted by future decisions dealing with uninsured/underinsured motorist protection because this protection requires the balancing of contract law with the public policy of protecting “persons from losses which, because of the tortfeasor\u27s lack of liability coverage would otherwise go uncompensated.

SMA CO(2-1) Observations of CG30: A Protostellar Binary System with a High-Velocity Quadrupolar Molecular Outflow

We present interferometric observations in the 12CO (2-1) line and at 1.3 mm dust continuum of the low-mass protostellar binary system in the cometary globule CG30, using the Submillimeter Array. The dust continuum images resolve two compact sources (CG30N and CG30S), with a linear separation of ~8700 AU and total gas masses of ~1.4 and ~0.6 M_sun, respectively. With the CO images, we discover two high-velocity bipolar molecular outflows, driven by the two sources. The two outflows are nearly perpendicular to each other, showing a quadrupolar morphology. The northern bipolar outflow extends along the southeast (redshifted, with a velocity up to ~23 km/s) and northwest (blueshifted, velocity up to ~30 km/s) directions, while the southern pair has an orientation from southwest (blueshifted, velocity up to 13 km/s) to northeast (redshifted, velocity up to ~41 km/s). The outflow mass of the northern pair, driven by the higher mass source CG30N, is ~9 times larger than that of the southern pair. The discovery of the quadrupolar molecular outflow in the CG30 protobinary system, as well as the presence of other quadrupolar outflows associated with binary systems, demonstrate that the disks in (wide) binary systems are not necessarily co-aligned after fragmentation.Comment: 12 pages, 3 figures, to be published by ApJL in October 200

The Eroding Artificial/Natural Distinction: Some Consequences for Ecology and Economics

Since Thomas Kuhn’s The Structure of Scientific Revolutions (1962), historians and philosophers of science have paid increasing attention to the implications of disciplinarity. In this chapter we consider restrictions posed to interdisciplinary exchange between ecology and economics that result from a particular kind of commitment to the ideal of disciplinary purity, that is, that each discipline is defined by an appropriate, unique set of objects, methods, theories, and aims. We argue that, when it comes to the objects of study in ecology and economics, ideas of disciplinary purity have been underwritten by the artificial-natural distinction. We then problematize this distinction, and thus disciplinary purity, both conceptually and empirically. Conceptually, the distinction is no longer tenable. Empirically, recent interdisciplinary research has shown the epistemological and policy-oriented benefits of dealing with models which explicitly link anthropogenic (i.e., “artificial”) and non-anthropogenic factors (i.e., “natural”). We conclude that, in the current age of the Anthropocene, it is to be expected that without interdisciplinary exchange, ecology and economics may relinquish global relevance because the distinct and separate systems to which each “pure” science was originally made to apply will only diminish over time

Holt v. Grange Mutual Casualty Co.: Children Not Insureds under Policy Are Entitled to Death Benefits

The automobile insurance industry is up in arms after a decade of consumer friendly Ohio Supreme Court decisions. The insurance industry and commentators have noted the trend of judicial activism in interpreting insurance contracts. These decisions have been overwhelmingly in favor of consumers and against insurance companies. The Ohio Supreme Court decision of Holt v. Grange Mutual Casualty Co., is another consumer friendly decision and represents both an equitable and sound interpretation and application of Ohio law to consumer insurance contracts. This note walks through the Holt case, starting at the trial court level and working up through the Ohio Supreme Court decision. The authors conclude that the Ohio Supreme Court has taken a significant and laudable step to support the public policy considerations embodied in the uninsured/underinsured insurance statute and wrongful death statute at the expense of the narrowly drafted language imposed upon consumers in contracts crafted by insurance companies