297 research outputs found

    Darwin\u27s Doubts and the Problems of Animal Pain

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    Globalization and E-Commerce III. The French Enviroment and Policy

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    According to most indicators, the use of the Internet and the development of e-commerce (over the Internet) in France are below the level that should be reached given the French level of development. This observation can be explained by the late adoption of digital technologies by the French. However, the French lateness is less important for professional uses than for domestic uses. France began to catch up with pioneering countries during 1999-2000, but the collapse Internet bubble reduced the pace of adoption. The French late adoption of digital technologies is partly the result of the strong involvement of France in the development of two pre-existing technologies: Minitel (principally dedicated to B2C) and EDI (dedicated to B2B). Both technologies provided the users with a sufficient level of service to support their business processes, but hindered their propensity to switch to new Internet-based technology. Consequently, most available indicators underestimate the actual level of e-commerce in France, especially the French business readiness to switching to Web-based commerce. The late adoption of technology was not the only inhibitor for e-commerce. In France\u27s recent economic history, decision makers focused for too long on other issues. France had to adapt its economy and its industry to a competitive and global environment. Since the State played a strong role in an economy that was not widely open to competition, a wide set of reforms took place between the mid-1980s and the late 1990s. However, this restructuring policy prepared France for the adoption of e-commerce. as France was transformed into a service economy. Most organizations became more flexible by externalizing non-core activities and by implementing modular principles of organization. French companies went international as well. This new business climate favored the adoption of e-business and e-commerce practice by the end of the 1990s. When macroeconomic and industrial restructurings were achieved, the French government launched a strong information society policy. Since 1998, the government furthered the deregulation of telecommunication services, reshaped the legal framework to adapt to digital technologies, promoted IT training and innovation, and developed e-government. These policies were both a component of and aligned with the year 2000 e-Europe initiative of the European Union (EU), which promoted the development of a strong digital economy. Specific support programs (in RD and development of content) were combined and an intensive effort for legislation and inter-member benchmarking occurred (to stimulate member states to align on the most advanced state), the Commission and the Council of the EU tried try to stimulate development of a dynamic digital industry in Europe, and to boost the adoption of digital technologies and the new-methods of work and business enabled by them. While the European and the French policies impacted the adoption of digital technologies and e-commerce development significantly, they were insufficient to really enable France to catch up. The bursting of the Internet bubble slowed the pace. Moreover, B2C e-commerce was inhibited by the efficiency of the French distribution system that serves at a low cost alternative to the Internet for most of the population. The existing installed base of EDI, especially in the automobile and distribution industries, inhibits B2B e-commerce over the Internet. Consequently, the French e-commerce path of development is unique since it relies less on the Internet than in many other countries. Despite these inhibitors, France is adopting digital technologies and related practices at a higher pace than the other European countries. Within France, e-commerce is quite different in the various regions and industries. The Paris area (one-fifth of the French population), the IT industry, the professional services and distribution industries, and large companies are as intensively digitized as most advanced countries, industries, and companies worldwide. H

    IT and Productivity in Developed and Developing Countries

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    Previous research at the cross-national level has found that IT investment is associated with significant productivity gains for developed countries but not for developing countries. Notwithstanding the lack of evidence of productivity gains, developing countries have increased their investment in IT dramatically. Given all of this investment, there is a need for research to study whether the investment has begun to pay off in greater productivity for developing countries. In this study, we employ production function analysis on new data on IT investment and productivity for 49 countries from 1985-2004, and compare the results from 1994-2004 with the earlier years (1985-1993) that were covered by Dewan and Kraemer (2000). The goal is to find out whether developing countries have been able to achieve significant productivity gains from IT investment in the more recent period as they have increased their IT capital stocks and gained experience with the use of IT. We also incorporate a set of complementary factors missing from previous studies, including telecommunications investment and prices, human resources, and foreign direct investment, to determine whether these factors have an impact on the relationship of IT to productivity. We find that for developing countries, there was no significant effect for IT capital for the 1985-1993 sample, but the relationship is positive and significant for the 1994-2004 sample. On the other hand, for developed countries, IT capital is significant across all time periods. Non-IT capital stock and labor hours also are positive and significant across all samples and time periods as expected. We also find developing countries with higher levels of tertiary education and lower telecommunication prices achieve greater productivity gains. To our knowledge, this is the first empirical research to find productivity impacts from IT investments in developing countries. The finding that developing countries only began to realize payoffs from IT investment in more recent years suggests that there may be some critical level of IT capital stock, or some minimum level of accumulated experience (human capital) required before such gains become evident. For policymakers in developing countries, these findings provide evidence that IT investments are likely to lead to productivity gains and give support for policies to promote IT investment and use

    It diffusion in developing countries

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    here is widespread belief among international agencies and development specialists in the potential value of information technology (IT) to sup-port economic and human development [11, 12]. Some question whether IT alone can have a major impact on the standard of living in developing countries, but most see it offering access to vital information and services such as weather forecasting, commodity prices, health care, and education. However, a significant digital divide exists between richer and poorer countries in the use of IT and the availability of complementary assets such as telecommunications networks and skilled IT profes-sionals. This gap has led to a public debate about what can be done to promote greater IT use so that developing coun-tries can achieve the types of benefits already being enjoyed in the industrialized world. Policymakers need to recognize that developing economies have different drivers for IT investment than their wealthier brethren

    Classical and Quantum-Mechanical Calculations of HCO^+ + e → CO(v) + H

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    It has been suggested that interstellar CO produced in the dissociative recombination between HCO+ and electrons can be detected via infrared emission from excited vibrational levels. Using classical and quantum mechanical equations of motion, we have calculated the distribution of CO product vibrational states for the dissociative recombination reaction between HCO+ and electrons. We have assumed the dissociation to occur along a purely linear geometry. The CO vibrational distribution has been calculated for two electronic states: (1) the ground X1Σ^+ state and (2) the excited a ^3Π state. For the X state, we have used a newly calculated ab initio potential surface for the dissociation of HCO. Results for the a state can be compared with the results of experimental work by Adams and collaborators. Our results show that in general vibrational excitation of the CO product is not large, so that detection of infrared emission from interstellar clouds will not be facile

    Online forums for addiction recovery support: characteristics and engagement

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    In developing public resources for the Networks Enhancing Addiction Recovery – Forum Activity Roadmap (NEAR-FAR), we completed a comprehensive observational study of English-language online forums related to recovery from alcohol or other drug addiction. Among 207 identified forums, the majority were classified as “general addiction” or alcohol-focused, though classifications related to other substances were common on websites hosting multiple forums. Commonly used social media platforms such as Reddit, Facebook, or Quora offered easily accessible venues for individuals seeking online support related to a variety of addictive substances. They included forums related to established mutual help programs such as 12-step and SMART recovery, other nonprofit and for-profit recovery programs, and community forums without formal programs. Among 148 forums with any observed user activity, the median time between unique user engagements was 27 days (inter-quartile range: 2-74). Among 98 forums with past-month posting activity, we found a median of <10 posts per week (inter-quartile range: 1-78). This study compares three metrics of observed forum user activity (posts per week, responses per post, time between unique user engagements) and considers forum characteristics that may potentiate greater engagement and support in addiction recovery

    Circumstellar Structure around Evolved Stars in the Cygnus-X Star Formation Region

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    We present observations of newly discovered 24 micron circumstellar structures detected with the Multiband Imaging Photometer for Spitzer (MIPS) around three evolved stars in the Cygnus-X star forming region. One of the objects, BD+43 3710, has a bipolar nebula, possibly due to an outflow or a torus of material. A second, HBHA 4202-22, a Wolf-Rayet candidate, shows a circular shell of 24 micron emission suggestive of either a limb-brightened shell or disk seen face-on. No diffuse emission was detected around either of these two objects in the Spitzer 3.6-8 micron Infrared Array Camera (IRAC) bands. The third object is the luminous blue variable candidate G79.29+0.46. We resolved the previously known inner ring in all four IRAC bands. The 24 micron emission from the inner ring extends ~1.2 arcmin beyond the shorter wavelength emission, well beyond what can be attributed to the difference in resolutions between MIPS and IRAC. Additionally, we have discovered an outer ring of 24 micron emission, possibly due to an earlier episode of mass loss. For the two shell stars, we present the results of radiative transfer models, constraining the stellar and dust shell parameters. The shells are composed of amorphous carbon grains, plus polycyclic aromatic hydrocarbons in the case of G79.29+0.46. Both G79.29+0.46 and HBHA 4202-22 lie behind the main Cygnus-X cloud. Although G79.29+0.46 may simply be on the far side of the cloud, HBHA 4202-22 is unrelated to the Cygnus-X star formation region.Comment: Accepted by A

    Land Use Influences the Composition and Antimicrobial Effects of Propolis

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    Honey bee propolis is a complex, resinous mixture created by bees using plant sources such as leaves, flowers, and bud exudates. This study characterized how cropland surrounding apiaries affects the chemical composition and antimicrobial effects of propolis. The chemical composition and compound abundance of the propolis samples were analyzed using Gas Chromatography- Mass Spectrometry (GC-MS) and the antimicrobial effects were analyzed using the 50% minimum inhibitory concentration (MIC50) assay against four relevant bee pathogens, Serratia marcescens, Paenibacillus larvae, Lysinibacillus sphaericus, and Klebsiella pneumoniae. Propolis composition varied significantly with apiary, and cropland coverage predicted mean sum abundance of compounds. The apiary with the highest cropland coverage exhibited significantly higher MIC50 values for S. marcescens and K. pneumoniae compared to other apiaries. These results demonstrate that agricultural land use surrounding honey bee apiaries decreases the chemical quality and antimicrobial effects of propolis, which may have implications for the impacts of land use on hive immunity to potential pathogens
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