Miracle-dz/UniFAR-FTUs huggingface dataset:
Clinical Study Incidence and Risk Factors of Early Delirium after Cardiac Surgery

Introduction. The aim of our study was to identify the incidence and risk factors of delirium after cardiac surgery implementing Intensive Care Delirium Screening Checklist (ICDSC). Material and Methods. 87 patients, undergoing cardiac surgery at Vilnius University hospital, were prospectively monitored for postoperative delirium development, during intensive care unit stay. Results. The incidence of postoperative delirium was 13.30%. No statistically relevant preoperative predictors of delirium were found. The duration of surgery was significantly longer in delirium group (4.51±1.15 versus 3.76±0.97 hours, P = 0.017). Patients in delirium group more often had blood product transfusions (1.50 (± 1.57) versus 0.49 (± 0.91) P = 0.003) and had a higher incidence of low cardiac output syndrome (33.30% versus 3.00%, P = 0.004); they were significantly longer mechanically ventilated (24.31 ± 28.35 versus 8.78 ± 4.77 (P < 0.001)) hours (OR = 1.15 (1.02–1.28)) and had twice longer ICU stay (5.00 ± 2.22 versus 2.60 ± 1.10 (P < 0.001)) days (OR = 1.91 (1.22–3.00)). Conclusions. The incidence of delirium after cardiac surgery was 13.3%. Independent predictors of delirium were duration of postoperative mechanical ventilation and intensive care unit stay.
Implementation of standard testbeds for numerical relativity

We discuss results that have been obtained from the implementation of the initial round of testbeds for numerical relativity which was proposed in the first paper of the Apples with Apples Alliance. We present benchmark results for various codes which provide templates for analyzing the testbeds and to draw conclusions about various features of the codes. This allows us to sharpen the initial test specifications, design a new test and add theoretical insight.
Designing Matching Mechanisms under General Distributional Constraints

In this paper, we consider two-sided, many-to-one matching problems where agents in one side of the market (schools) impose some distributional constraints (e.g., a maximum quota for a set of schools), and develop a strategyproof mechanism that can handle a very general class of distributional constraints. We assume distributional constraints are imposed on a vector, where each element is the number of contracts accepted for each school. The only requirement we impose on distributional constraints is that the family of vectors that satisfy distributional constraints must be hereditary, which means if a vector satisfies the constraints, any vector that is smaller than it also satisfies them. When distributional constraints are imposed, a stable matching may not exist. We develop a strategyproof mechanism called Adaptive Deferred Acceptance mechanism (ADA), which is nonwasteful and "more fair" than a simple nonwasteful mechanism called the Serial Dictatorship mechanism (SD) and "less wasteful" than another simple fair mechanism called the Artificial Cap Deferred Acceptance mechanism (ACDA). We show that we can apply this mechanism even if the distributional constraints do not satisfy the hereditary condition by applying a simple trick, assuming we can find a vector that satisfy the distributional constraints efficiently. Furthermore, we demonstrate the applicability of our model in actual application domains.
Towards the use of Integral Radar Volume Descriptors for quantitative areal precipitation estimation-results from pseudo-radar observations

The central objective of our analysis is to significantly enhance the quality of radar derived precipitation estimates by as fully as possible exploiting the information contained in the spatial and temporal variability of 3D radar volume data. The results presented are yet based on pseudo-radar data and rain rates of a regional weather forecasting model and 12 true radiosoundings as well. We pursue two approaches: The first approach estimates total rainfall from an individual storm over its lifetime while the second approach assesses the areawide instantaneous rainfall from a multiplicity of such storms by the use of measurements of the areal coverage of the storms exceeding a threshold radar reflectivity. We extend the concept by adding further predictors in order to significantly enhance the rainfall estimates. The horizontal expected value and the horizontal standard deviation of enclosed reflectivities at the ground, the mean brightband fraction and its trend, the fractional area with reflectivities exceeding a threshold τ and an orographic rainfall amplifier provide relative errors smaller than 10% in approximately 75% of the considered rain events in the first approach. In the second approach we achieve a relative error below 10% in approximately 63% elements of the test set.
Sympathetic hyperactivity in children of hypertensive parents

Background Hypertension is a global problem. Positive family history of hypertension is one of the risk factors for being hypertensive in future life for their children. Hyperactive sympathetic nervous system is reported in children of hypertensive parents. Purpose The main objective of the study was to observe the magnitude of alterations in autonomic reactivity following the standard autonomic function tests in normotensive male offsprings of both—hypertensive and normotensive parents. Methods Fifty young and healthy male subjects between 19-24 yr of age got examined for autonomic reactivity. Twenty five of them were having family history of hypertension (study group) while the remaining were the children of normotensive parents (control group). Non invasive autonomic function tests as per Ewing’s criteria were performed in all the subjects. Results The resting heart rate, systolic and diastolic blood pressures were not significantly raised in subjects of study group. The sympathetic function tests as assessed by rise in diastolic blood pressure following cold pressor test and hand grip test were highly significant in study group as compared with control one. However, the vagally mediated tests, for heart rate responses, denoting parasympathetic functions were similar in both groups. Conclusion It seems that there is increased sympathetic activity in children of hypertensive parents without parasympathetic modulation in early life. It may predispose them to hypertension in their later life.
Fast Incremental Method for Nonconvex Optimization

We analyze a fast incremental aggregated gradient method for optimizing nonconvex problems of the form $\min_x \sum_i f_i(x)$. Specifically, we analyze the SAGA algorithm within an Incremental First-order Oracle framework, and show that it converges to a stationary point provably faster than both gradient descent and stochastic gradient descent. We also discuss a Polyak's special class of nonconvex problems for which SAGA converges at a linear rate to the global optimum. Finally, we analyze the practically valuable regularized and minibatch variants of SAGA. To our knowledge, this paper presents the first analysis of fast convergence for an incremental aggregated gradient method for nonconvex problems.
Rising Inequality and the Politics of Redistribution in Affluent Countries

We use data from the Luxembourg Income Study to examine household market inequality, redistribution, and the relationship between market inequality and redistribution in affluent OECD countries in the 1980s and 1990s. We observe sizeable increases in market household inequality in most countries. This development appears to have been driven largely, though not exclusively, by changes in employment: in countries with better employment performance, low-earning households benefited relative to high-earning ones; in nations with poor employment performance, low-earning households fared worse. In contrast to widespread rhetoric about the decline of the welfare state, redistribution increased in most countries during this period, as existing social-welfare programs compensated for the rise in market inequality. They did so in proportion to the degree of increase in inequality, producing a very strong positive association between changes in market inequality and changes in redistribution. We discuss the relevance of median-voter theory and power resources theory for understanding differences across countries and changes over time in the extent of compensatory redistribution.Lane Kenworthy is an associate professor in the Department of Sociology at the University of Arizona (lane.kenworthy@arizona.edu). Jonas Pontusson is a professor in the Department of Politics at Princeton University (jpontuss@princeton.edu). Earlier versions of this paper were presented at the Conference of Europeanists (March 2002), a workshop on the Comparative Political Economy of Inequality at Cornell University (April 2002), the annual meeting of the Society for the Advancement of Socio-Economics (June 2002), and a seminar at the Center for European Studies, Harvard University (December 2003). For criticisms and suggestions the authors thank Richard Freeman, Janet Gornick, Alex Hicks, Torben Iversen, Larry Kahn, Tomas Larsson, Jim Mosher, Nirmala Ravishankar, David Rueda, Tim Smeeding, John Stephens, Michael Wallerstein, Christopher Way, Erik Wright, and the Perspectives on Politics reviewers.
Identify anomaly componentbysparsity and low rank

Traditional hyperspectral anomaly detection methods either model the global background or the local neighborhood, that bring some apparent drawbacks, such as the unreasonable assumption of uni-modular background in global detectors, or the high false alarms by sliding windows in local detectors. In this paper, a source component-based anomaly detection approach is proposed. It first extracts the source components in the spectral image data cube by using the blind source component separation and then identifies the components that are anomaly (or salient) to other components. We interpret the anomaly detection as a matrix decomposition problem with the minimum volume constraint for the multi-modular background and sparsity constraint for the anomaly image pixels. Experimental results show that the approach is promising for anomaly detection in spectral data cube.
Prospective Evaluation of Infection Episodes in Cancer Patients in a Tertiary Care Academic Center: Microbiological Features and Risk Factors for Mortality

Objective: We aimed to determine the frequency, type, and etiology of infections and the risk factors for infections and mortality in hospitalized cancer patients. Materials and Methods: We prospectively enrolled adult cancer patients hospitalized in the internal medicine wards of a tertiary care academic center between January and August 2004. Patients were followed during their hospitalization periods for neutropenia, infections, culture results, and mortality. Results: We followed 473 cancer patients with 818 hospitalization episodes and 384 infection episodes in total. Seventy-nine percent of the infections were nosocomial, and febrile neutropenia (FN) was observed in 196 (51%) of the infection episodes. Bacteremia was found in 29% of FN episodes and in 8% of nonneutropenic patients. Gram-positive bacteria were the leading cause of bacteremia in both neutropenic and nonneutropenic cases (70% and 58%, respectively). Presence of an indwelling central catheter increased bacteremia risk by 3-fold. The overall mortality rate was 17%, whereas 34% of the patients with bloodstream infections died. Presence of bacteremia and advanced disease stage increased overall mortality by 6.1-fold and 3.7-fold, respectively. Conclusion: Nearly half of the cancer patients developed an infection during their hospital stays, with gram-positive bacteria being the predominant etiologic microorganisms. This demonstrates the changing trends in infections considering that, until 2004, gram-negative bacteria were the most predominant microorganisms among cancer patients in our institute.
Meta-analysis of the efficacy and acceptability of cognitive-behavioural therapy for Arab adult populations experiencing anxiety, depression or post-traumatic stress disorder

Abstract A meta-analysis of the literature of cognitive behaviour therapy (CBT) with Arab adult populations experiencing anxiety, depression or post-traumatic stress disorder (PTSD) was conducted. Nine studies (n = 536) met the eligibility criteria. Three of the nine studies (33%) were randomised control trials using waitlist control groups. All studies (100%) reported a statistically significant reduction in psychological symptoms at post-treatment with large effect sizes for anxiety (effect size, 95% confidence interval) (1.44 [1.29, 1.59]), depression (1.26 [1.16, 1.35]) and PTSD (2.08 [1.94, 2.23]). Six out of the nine studies (67%) collated follow-up data and reported that reductions of psychological symptoms were maintained at follow-up. An average dropout rate of 26% indicated good overall acceptability. Five out of nine (55%) of the trials reported diagnostic remission rates and of those trials the mean remission rate was 31%). Five of the nine eligible studies (55%) delivered remotely via Internet or telephone were found to have similar effect sizes as face-to-face CBT. The current meta-analysis indicates the potential of CBT, delivered either face-to-face or via internet, as efficacious and acceptable interventions for the treatment of anxiety, depression and PTSD for Arab adult populations.
RoboCupRescue-Robot League Team RescueRobots Freiburg ( Germany )

This paper describes the approach of the RescueRobots Freiburg team. RescueRobots Freiburg is a team of students from the university of Freib urg, that originates from the former CS Freiburg team (RoboCupSoccer) and the ResQ Freiburg team (RoboCupRescue Simulation). Due to the high versatility of the RoboCupRescue competition we tackle the three arenas by a a twofold approach: On the one hand we want to introduce ro bust vehicles that can safely be teleoperated through rubble and building debr is while constructing three-dimensional maps of the environment. On the other ha nd we want to introduce a team of autonomous robots that quickly explore a large ter ain while building a two-dimensional map. This two solutions are particularly wellsuited for the red and yellow arena, respectively. Our solution for the or ange arena will finally be decided between these two, depending on the capabilities of both approaches at the venue. In this paper, we introduce some preliminary results that we achieved so f ar fr m map building, localization, and autonomous victim identification. Furthermore we introduce a custom made 3D Laser Range Finder (LRF) and a novel m echanism for the active distribution of RFID tags.
Reducing RFID reader load with the meet-in-the-middle strategy

When tag privacy is required in radio frequency identification (ID) system, a reader needs to identify, and optionally authenticate, a multitude of tags without revealing their IDs. One approach for identification with lightweight tags is that each tag performs pseudo-random function with his unique embedded key. In this case, a reader (or a back-end server) needs to perform a brute-force search for each tag-reader interaction, whose cost gets larger when the number of tags increases. In this paper, we suggest a simple and efficient identification technique that reduces readers computation to O(√N log N) without increasing communication cost. Our technique is based on the well-known "meet-in-the- middle" strategy used in the past to attack symmetric ciphers.
The 1956 earthquake and tsunami in Amorgos, Greece

SUMMARY We conduct a comprehensive study of the Amorgos, Greece earthquake and tsunami of 1956 July 09, the largest such event in the Aegean Sea in the 20th century. Systematic relocation of the main shock and 34 associated events defines a rupture area measuring 75 × 40 km. The use of the Preliminary Determination of Focal Mechanism algorithm resolves the longstanding controversy about the focal geometry of the event, yielding a normal faulting mechanism along a plane dipping to the southeast, which expresses extensional tectonics in the back arc behind the Hellenic subduction zone. The seismic moment of 3.9 × 10 27 dyn cm is the largest measured in the past 100 yr in the Mediterranean Basin. A quantitative database of 68 values of tsunami run-up was built through the systematic interview, over the past 5 yr, of elderly eyewitness residents of 16 Aegean islands and the Turkish coast of Asia Minor. It confirms values of up to 20 m on the southern coast of Amorgos, 10 m on Astypalaia, and up to 14 m on the western coast of Folegandros, 80 km to the west of the epicentre. These values, largely in excess of the inferred seismic slip at the source, and their concentration along isolated segments of fault, are incompatible with the generation of the tsunami by the seismic dislocation, and require an ancillary source, in the form of a series of landslides triggered by the earthquake and/or its main aftershocks, a model confirmed by hydrodynamic simulations using both the dislocation source and models of landslide sources.
On the distribution of periodic orbits

Let f : $M\to M$ be a $C^{1+\varepsilon}$-map on a smooth Riemannian manifold $M$ and let $\Lambda\subset M$ be a compact $f$-invariant locally maximal set. In this paper we obtain several results concerning the distribution of the periodic orbits of $f|_\Lambda$. These results are non-invertible and, in particular, non-uniformly hyperbolic versions of well-known results by Bowen, Ruelle, and others in the case of hyperbolic diffeomorphisms. We show that the topological pressure Ptop$(\varphi)$ can be computed by the values of the potential $\varphi$ on the expanding periodic orbits and also that every hyperbolic ergodic invariant measure is well-approximated by expanding periodic orbits. Moreover, we prove that certain equilibrium states are Bowen measures. Finally, we derive a large deviation result for the periodic orbits whose time averages are apart from the space average of a given hyperbolic invariant measure.
Shareholder Power and Corporate Innovation: Evidence from Hedge Fund Activism

This paper studies how hedge fund activism reshapes corporate innovation. We find that firms targeted by hedge fund activists experience an improvement in innovation efficiency after intervention. Despite reduction in R&D expenditures, target firms experience increases in innovation output (measured by both patent counts and citations), with stronger effects seen among firms starting with more diversified innovation portfolios. We further show that the reallocation of innovative resources and the redeployment of human capital contribute to the refocusing of the scope of innovation and lead to gains in efficiency. Finally, we establish that the link between hedge fund interventions and improvements in innovation efficiency is a by-product of asset reallocations triggered by activist interventions at the target firms. JEL Classification: G23, G34, O31
Analysis and Implementation of a Simple Method to Add Noise to a Channel Using Non-uniform Sampling

This paper is an investigation into non--uniform sampling and its effects when correction is not available. First, a mathematical model is put forth, which a physical implementation was then based on. A comparison of both the theoretical and practical implementation took place, and it was found that the mathematical model accurately predicted the results. The mathematical model used statistics to predict the output variance given an input variance; the output variance was found to have half the input variance. It was found that the amount of noise added to the channel increases linearly with the length of the shift register until it reaches a maximum value.
MODERN QUANTUM TECHNOLOGIES OF INFORMATION SECURITY AGAINST CYBER-TERRORIST ATTACKS

In this paper, the systematisation and classification of modern quantum technologies of information security against cyber-terrorist attack are carried out. The characteristic of the basic directions of quantum cryptography from the viewpoint of the quantum technologies used is given. A qualitative analysis of the advantages and disadvantages of concrete quantum protocols is made. The current status of the problem of practical quantum cryptography use in telecommunication networks is considered. In particular, a short review of existing commercial systems of quantum key distribution is given.
Pulmonary Inflammation Impacts on CYP1A1-Mediated Respiratory Tract DNA Damage Induced by the Carcinogenic Air Pollutant Benzo[a]pyrene

Pulmonary inflammation can contribute to the development of lung cancer in humans. We investigated whether pulmonary inflammation alters the genotoxicity of polycyclic aromatic hydrocarbons (PAHs) in the lungs of mice and what mechanisms are involved. To model nonallergic acute inflammation, mice were exposed intranasally to lipopolysaccharide (LPS; 20 µg/mouse) and then instilled intratracheally with benzo[a]pyrene (BaP; 0.5 mg/mouse). BaP-DNA adduct levels, measured by 32P-postlabeling analysis, were approximately 3-fold higher in the lungs of LPS/BaP-treated mice than in mice treated with BaP alone. Pulmonary Cyp1a1 enzyme activity was decreased in LPS/BaP-treated mice relative to BaP-treated mice suggesting that pulmonary inflammation impacted on BaP-induced Cyp1a1 activity in the lung. Our results showed that Cyp1a1 appears to be important for BaP detoxification in vivo and that the decrease of pulmonary Cyp1a1 activity in LPS/BaP-treated mice results in a decrease of pulmonary BaP detoxification, thereby enhancing BaP genotoxicity (ie, DNA adduct formation) in the lung. Because less BaP was detoxified by Cyp1a1 in the lungs of LPS/BaP-treated mice, more BaP circulated via the blood to extrapulmonary tissues relative to mice treated with BaP only. Indeed, we observed higher BaP-DNA adduct levels in livers of LPS/BaP-treated mice compared with BaP-treated mice. Our results indicate that pulmonary inflammation could be a critical determinant in the induction of genotoxicity in the lung by PAHs like BaP. Cyp1a1 appears to be involved in both BaP bioactivation and detoxification although the contribution of other enzymes to BaP-DNA adduct formation in lung and liver under inflammatory conditions remains to be explored.
The Chemical Composition of Carbon-rich, Very Metal Poor Stars: A New Class of Mildly Carbon Rich Objects without Excess of Neutron-Capture Elements

We report on an analysis of the chemical composition of five carbon-rich, very metal poor stars based on high-resolution spectra. One star, CS 22948-027, exhibits very large overabundances of carbon, nitrogen, and the neutron-capture elements, as found in the previous study of Hill et al. This result can be interpreted as a consequence of mass transfer from a binary companion that previously evolved through the asymptotic giant branch stage. By way of contrast, the other four stars we investigate exhibit no overabundances of barium ([Ba/Fe] < 0), while three of them have mildly enhanced carbon and/or nitrogen ([C + N] ~ +1). We have been unable to determine accurate carbon and nitrogen abundances for the remaining star (CS 30312-100). These stars are rather similar to the carbon-rich, neutron-capture-element-poor star CS 22957-027 discussed previously by Norris et al., although the carbon overabundance in this object is significantly larger ([C/Fe] = +2.2). Our results imply that these carbon-rich objects with "normal" neutron-capture element abundances are not rare among very metal-deficient stars. One possible process to explain this phenomenon is as a result of helium-shell flashes near the base of the asymptotic giant branch in very low metallicity, low-mass (M ≲ 1M☉) stars, as recently proposed by Fujimoto et al. The moderate carbon enhancements reported here ([C/Fe] ~ +1) are similar to those reported in the famous r-process-enhanced star CS 22892-052. We discuss the possibility that the same process might be responsible for this similarity, as well as the implication that a completely independent phenomenon was responsible for the large r-process enhancement in CS 22892-052.