840 research outputs found
The Google Book search settlement: A law and economics analysis
Beginning in December 2004 Google has pursued a new project to create a book search engine (Google Book Search). The project has released a storm of controversy around the globe. While the supporters of Google Book Search conceive the project as a first reasonable step towards unlimited access to knowledge in the information age, its opponents fear profound negative effects due to an erosion of copyright law. Our law and economics analysis of the Book Search Project suggests that â from a copyright perspective â the proposed settlement may be beneficial to right holders, consumers, and Google. For instance, it may provide a solution to the still unsolved dilemma of orphan works. From a competition policy perspective, we stress the important aspect that Googleâs pricing algorithm for orphan and unclaimed works effectively replicates a competitive Nash-Bertrand market outcome under post-settlement, third-party oversight.Book Rights Registry; Competition Policy; Copyright; Fair Use; Google Book Search; Library Program; Orphan Works
Does Online Access Promote Research in Developing Countries?
Universities in developing countries have rarely been able to subscribe to academic journals in the past. The âOnline Access to Research in the Environmentâ initiative (OARE) provides institutions in developing countries with free online access to more than 5,700 environmental science journals. Here we analyze the effect of OARE on scientific output in five developing countries. We apply difference-in-difference estimation using panel data for 18,955 articles from 798 research institutions. We find that online access via OARE increases publication output by at least 43% while lower-ranked institutions located in remote areas benefit less. Results are robust when we apply instrumental variables to account for information diffusion and Bayesian estimation to control for self-selectio
Does Online Access Promote Research in Developing Countries?
Universities in developing countries have rarely been able to subscribe to academic journals in the past. The âOnline Access to Research in the Environmentâ initiative (OARE) provides institutions in developing countries with free online access to more than 5,700 environmental science journals. Here we analyze the effect of OARE on scientific output in five developing countries. We apply difference-in-difference estimation using panel data for 18,955 articles from 798 research institutions. We find that online access via OARE increases publication output by at least 43% while lower-ranked institutions located in remote areas benefit less. Results are robust when we apply instrumental variables to account for information diffusion and Bayesian estimation to control for self-selectio
Gaining confidence on the correct realization of arbitrary quantum computations
We present verification protocols to gain confidence in the correct
performance of the realization of an arbitrary universal quantum computation.
The derivation of the protocols is based on the fact that matchgate
computations, which are classically efficiently simulable, become universal if
supplemented with additional resources. We combine tools from weak simulation,
randomized compiling, and classical statistics to derive verification circuits.
These circuits have the property that (i) they strongly resemble the original
circuit and (ii) cannot only be classically efficiently simulated in the ideal,
i.e. error free, scenario, but also in the realistic situation where errors are
present. In fact, in one of the protocols we apply exactly the same circuit as
in the original computation, however, to a slightly modified input state.Comment: 17 pages, 8 figure
Standardizing the analysis of physical activity in patients with COPD following a pulmonary rehabilitation program
BACKGROUND: There is a wide variability in measurement methodology of physical activity. This study investigated the effect of different analysis techniques on the statistical power of physical activity outcomes aft er pulmonary rehabilitation. METHODS: Physical activity was measured with an activity monitor armband in 57 patients with COPD (mean +/- SD age, 66 +/- 7 years; FEV 1, 46 +/- 17% predicted) before and aft er 3 months of pulmonary rehabilitation. The choice of the outcome (daily number of steps [STEPS], time spent in at least moderate physical activity [TMA], mean metabolic equivalents of task level [METS], and activity time [ACT]), impact of weekends, number of days of assessment, post-processing techniques, and influence of duration of daylight time (DT) on the sample size to achieve a power of 0.8 were investigated. RESULTS: The STEPS and ACT (1.6-2.3 metabolic equivalents of task) were the most sensitive outcomes. Excluding weekends decreased the sample size for STEPS (83 vs 56), TMA (160 vs 148), and METS (251 vs 207). Using 4 weekdays (STEPS and TMA) or 5 weekdays (METS) rendered the lowest sample size. Excluding days with, 8 h wearing time reduced the sample size for STEPS (56 vs 51). Differences in DT were an important confounder. CONCLUSIONS: Changes in physical activity following pulmonary rehabilitation are best measured for 4 weekdays, including only days with at least 8 h of wearing time (during waking hours) and considering the difference in DT as a covariate in the analysis
Physical activity counselling during pulmonary rehabilitation in patients with COPD : a randomised controlled trial
Background Pulmonary rehabilitation programs only modestly enhance daily physical activity levels in patients with chronic obstructive pulmonary disease (COPD). This randomised controlled trial investigates the additional effect of an individual activity counselling program during pulmonary rehabilitation on physical activity levels in patients with moderate to very severe COPD. Methods Eighty patients (66 +/- 7 years, 81% male, forced expiratory volume in 1 second 45 +/- 16% of predicted) referred for a six-month multidisciplinary pulmonary rehabilitation program were randomised. The intervention group was offered an additional eight-session activity counselling program. The primary outcomes were daily walking time and time spent in at least moderate intense activities. Results Baseline daily walking time was similar in the intervention and control group (median 33 [interquartile range 16-47] vs 29 [17-44]) whereas daily time spent in at least moderate intensity was somewhat higher in the intervention group (17[4-50] vs 12[2-26] min). No significant intervention*time interaction effects were observed in daily physical activity levels. In the whole group, daily walking time and time spent in at least moderate intense activities did not significantly change over time. Conclusions The present study identified no additional effect of eight individual activity counselling sessions during pulmonary rehabilitation to enhance physical activity levels in patients with COPD
The Google Book search settlement: A law and economics analysis
Beginning in December 2004 Google has pursued a new project to create a book search engine (Google Book Search). The project has released a storm of controversy around the globe. While the supporters of Google Book Search conceive the project as a first reasonable step towards unlimited access to knowledge in the information age, its opponents fear profound negative effects due to an erosion of copyright law.
Our law and economics analysis of the Book Search Project suggests that â from a copyright perspective â the proposed settlement may be beneficial to right holders, consumers, and Google. For instance, it may provide a solution to the still unsolved dilemma of orphan works. From a competition policy perspective, we stress the important aspect that Googleâs pricing algorithm for orphan and unclaimed works effectively replicates a competitive Nash-Bertrand market outcome under post-settlement, third-party oversight
Academic Publishing and Open Access
With the spread of the internet and new opportunities for publishing academic works digitally at virtually no costs, the traditional copyright model has recently been put under critical review which is for at least two reasons: First and foremost, a vast increase in subscription prices for academic journals has forced (university) libraries to significantly cut their journal portfolios. Second, copyright seems negligible in academia as researchers are motivated by reputation gains and CV effects rather than direct financial returns from publishing their works. As a consequence, the promotion of Open Access (OA) to scientific research is claimed as the perceived future of academic publishing in the information age.
This paper critically reviews the OA debate by discussing theoretical and empirical arguments on the role of copyright in publishing scientific outcomes. A brief historical perspective introduces to the changed environmental conditions for scholarly publishing, pointing to a new trade-off in the digital age. By framing the debate in a broader literature stream and related issues, we provide with caveat for further research and a glimpse of possible future scenarios. It is shown that copyright may be both a blessing and a curse in establishing an effective framework for scientific progress
Academic Publishing and Open Access
With the spread of the internet and new opportunities for publishing academic works digitally at virtually no costs, the traditional copyright model has recently been put under critical review which is for at least two reasons: First and foremost, a vast increase in subscription prices for academic journals has forced (university) libraries to significantly cut their journal portfolios. Second, copyright seems negligible in academia as researchers are motivated by reputation gains and CV effects rather than direct financial returns from publishing their works. As a consequence, the promotion of Open Access (OA) to scientific research is claimed as the perceived future of academic publishing in the information age.
This paper critically reviews the OA debate by discussing theoretical and empirical arguments on the role of copyright in publishing scientific outcomes. A brief historical perspective introduces to the changed environmental conditions for scholarly publishing, pointing to a new trade-off in the digital age. By framing the debate in a broader literature stream and related issues, we provide with caveat for further research and a glimpse of possible future scenarios. It is shown that copyright may be both a blessing and a curse in establishing an effective framework for scientific progress
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