6,876 research outputs found
The Path to the Top: Changes in the Attributes and Careers of Corporate Executives, 1980-2001
The analyses below compare the career histories and personal characteristics of the executives in the top ranks of the world's largest and most stable business operations, the Fortune 100, between 1980 and 2001. To our knowledge, there have been no prior studies of contemporary changes in the experience or attributes of executives beyond CEOs. In 2001, these executives were younger, more likely to be women, and less likely to have been Ivy League educated. Most important, they got to the executive suite about four years faster than in 1980 and did so by holding fewer jobs on the way to the top. (In particular, women in 2001 got to their executive jobs faster than their male counterparts --there were no women executives in the Fortune 100 in 1980). Executives in 2001 also spent about five years less in their current organization and were more likely to be hired from the outside than in 1980. Interestingly, the most stable firms the 26 that were in the Fortune 100 in both periods had just as much lifetime employment among executives in 2001 as in 1980, although changes in other aspects of careers were similar. Overall, the path to the executive suite and the attributes of the individuals who get there appear to have changed even in the largest and most stable business operations.
Are Franchises Bad Employers?
Franchise jobs are often described as representing the epitome of the "low road" approach to managing employees: high turnover, little training, deskilled jobs, and little employee involvement, practices often seen as unsophisticated. Research on franchise operations suggests, however, that the basic operating principles and practices of franchises tend to be more sophisticated than those of equivalent independent operators. We might therefore expect their employee management practices to be more advanced as well, challenging the stereotype of franchise jobs. We use data from a national probability sample of establishments to examine the relationship between franchise status and employment practices. While descriptive statistics suggest that franchise operations use low road practices, once industry, size, and other control variables are included in the analysis, franchise operations appear on important dimensions to offer better jobs with more sophisticated systems of employee management than similar non-franchise operations.
Localising fast radio bursts and other transients using interferometric arrays
A new population of sources emitting fast and bright transient radio bursts
has recently been identified. The observed large dispersion measure values of
FRBs suggests an extragalactic origin and an accurate determination of their
positions and distances will provide an unique opportunity to study the
magneto-ionic properties of the IGM. So far, FRBs have all been found using
large dishes equipped with multi-pixel arrays. While large single dishes are
well-suited for the discovery of transient sources they are poor at providing
accurate localisations. A 2D snapshot image of the sky, made with a correlation
interferometer array, can provide an accurate localisation of many compact
radio sources simultaneously. However, the required time resolution to detect
FRBs and a desire to detect them in real time, makes this currently
impractical. In a beamforming approach, where many narrow tied-array beams are
produced, the advantages of single dishes and interferometers can be combined.
We present a proof-of-concept analysis of a new non-imaging method that
utilises the additional spectral and comparative spatial information obtained
from multiple overlapping TABs to estimate a transient source location with up
to arcsecond accuracy in almost real time. We show that this method can work
for a variety of interferometric configurations, including for LOFAR and
MeerKAT, and that the estimated angular position may be sufficient to identify
a host galaxy without reference to other simultaneous or follow-up
observations. With this method, many transient sources can be localised to
small fractions of a HPBW of a TAB, in the case of MeerKAT, sufficient to
localise a source to arcsecond accuracy. In cases where the position is less
accurately determined we can still significantly reduce the area that need be
searched for associated emission at other wavelengths and potential host
galaxies.Comment: 17 pages, 12 figures, accepted for publication in the Astronomy and
Astrophysics journal, updated Table
The public–private pension mix in OECD countries
This article surveys the relationship between public and private pension provision in the countries of the Organisation for Economic Co-operation and Development. OECD. Population ageing has led many OECD countries to undertake a wide range of pension reforms. The overall effect of these reforms has in many cases been to reduce public pension promises, often signficantly. This, in turn, has increased the role of private pensions, which have expanded significantly in a number of countries. The article discusses the extent to which a number of countries will need to further increase private provision in order to guarantee adequate future retirement incomes.pension; retirement
Consumer preferences for teledermoscopy screening to detect melanoma early
Introduction: ‘Store and forward’ teledermoscopy is a technology with potential advantages for melanoma screening. Any large-scale implementation of this technology is dependent on consumer acceptance. Aim: To investigate preferences for melanoma screening options compared with skin self-examination in adults considered to be at increased risk of developing skin cancer. Methods: A discrete choice experiment was completed by 35 consumers, all of whom had prior experience with the use of teledermoscopy, in Queensland, Australia. Participants made 12 choices between screening alternatives described by seven attributes including monetary cost. A mixed logit model was used to estimate the relative weights that consumers place on different aspects of screening, along with the marginal willingness to pay for teledermoscopy as opposed to screening at a clinic. Results: Overall, participants preferred screening/diagnosis by a health professional rather than skin self-examination. Key drivers of screening choice were for results to be reviewed by a dermatologist; a higher detection rate; fewer non-cancerous moles being removed in relation to every skin cancer detected; and less time spent away from usual activities. On average, participants were willing to pay AUD110 to have teledermoscopy with dermatologist review available to them as a screening option. Discussion and conclusions: Consumers preferentially value aspects of care that are more feasible with a teledermoscopy screening model, as compared with other skin cancer screening and diagnosis options. This study adds to previous literature in the area which has relied on the use of consumer satisfaction scales to assess the acceptability of teledermoscopy
The remission of rheumatoid arthritis during pregnancy
Rheumatoid arthritis (RA) is an autoimmune disease that is favorably influenced by pregnancy but relapses after delivery. A variety of circulating factors has been considered as candidates for inducing gestational improvement of RA; however, the factors/pathways responsible remain still elusive. This review discusses recent research on the effect of pregnancy on RA with a focus on immunregulation, cytokine secretion, HLA antigens, microchimerism, and innate immunity. The complex hormonal and immunological alterations of pregnancy may temporarily correct the disturbed immunregulation of R
VERIFICATION OF THE BEARING CAPACITY OF PILES
The location of the buses in the basement of the new bus station in Bratislava, supplemented by two further parking floors below, shifted the foundation joint of the new bus station to a depth of approximately 14 m. The maneuvering space for the buses required unusually large distances between the supporting columns. In extreme cases, it was necessary to transfer a vertical load of more than 30,000 kN from the column to the subsoil. Only a relatively thin layer of Quaternary gravel remained between the footing bottom and the Neogene soils. The whole area was designed to be based on deep foundations. As this was a construction of the 3rd geotechnical category, it was necessary to verify the bearing capacity and quality of the piles. The applied test methods (especially the dynamic load tests) confirmed the correct design and implementation of piles
Measuring Affective Information Processing in Information Systems and Consumer Research – Introducing Startle Reflex Modulation
Over the last two decades, scholars in information systems and consumer research have started to successfully apply methods from neuroscience to research questions on emotional aspects related to IS or consumption behavior. However, there is still a lack of understanding regarding which particular facets of emotion can actually be measured by the various neuroscientific techniques. Especially when it comes to their ability to measure underlying affective information processing, some neuroscientific methods are more suitable than others. We discuss startle reflex modulation as one possibility for validly measuring the valence of affective information processing. The biologically deep-rooted startle reflex (eye-blink as a response to, e.g., an acoustic startle probe) is a valid measure of affective information processing, which is the basis of all emotions. We review three examples of startle reflex modulation having been successfully applied in the context of IS and consumer neuroscience and propose directions for further research
Understanding Executive Job Search
We apply the exploitation/exploration dichotomy faced by organizations in business strategy to the decisions of individual executives as to whether to continue in their current organization and exploit career opportunities there or explore new ones through the avenue of job search. Specifically, we observe whether executives pursue offers from an executive search firm to be considered for positions at other organizations. Insights from the multi-armed bandit problem help explain who searches and who does not, focusing on the structural attributes of each individual’s situation. Individuals are more likely to search where their current roles are less certain and where broader career experience makes search more useful because the array of possible opportunities is greater. The results also shed light on the operations of executive search firms, who are central actors in executive careers
Cell surface engineering of renal cell carcinoma with glycosylphosphatidylinositol-anchored TIMP-1 blocks TGF-beta 1 activation and reduces regulatory ID gene expression
Tissue inhibitor of metalloproteinase 1 (TIMP-1) controls matrix metalloproteinase activity through 1:1 stoichiometric binding. Human TIMP-1 fused to a glycosylphosphatidylinositol (GPI) anchor (TIMP-1-GPI) shifts the activity of TIMP-1 from the extracellular matrix to the cell surface. TIMP-1-GPI treated renal cell carcinoma cells show increased apoptosis and reduced proliferation. Transcriptomic profiling and regulatory pathway mapping were used to identify the potential mechanisms driving these effects. Significant changes in the DNA binding inhibitors, TGF-beta 1/SMAD and BMP pathways resulted from TIMP-1-GPI treatment. These events were linked to reduced TGF-beta 1 signaling mediated by inhibition of proteolytic processing of latent TGF-beta 1 by TIMP-1-GPI
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