Miracle-dz/UniFAR-FTUs huggingface dataset:
Activism Mergers

Shareholder value creation from hedge fund activism occurs primarily by influencing takeover outcomes for targeted firms. Controlling for selection decisions, activist interventions substantially increase the probability of a takeover offer. Third-party bids for targets have higher returns, premia, and completion rates, but these patterns reverse when the activist is the bidder. Failed bids for activism targets lead to improvements in operating performance, financial policy, and positive long-term abnormal returns, suggesting that activism enhances value. The positive long-term performance from hedge fund activism arises from monitoring target management during merger and acquisition contests and not from target undervaluation or bidder overpayment.
Image reconstruction for Magnetic Induction Tomography and Preliminary simulations on a simple head model

Magnetic Induction Tomography (MIT) of biological tissue is a contactless and noninvasive method to image the complex conductivity distribution or its changes inside a human body. In this paper, 2D (two-dimensional) simulations of the forward problem in MIT are performed by finite element method and an inverse solver based on regularized Newton-Raphson method is developed to reconstruct MIT images from the simulated measuring data. Preliminary MIT simulations on a simple head model are presented. Images can be reconstructed successfully with regularized Newton-Raphson method using the simulated measuring data. The preliminary simulation results show that a better image quality could be obtained by the increase of the number of the coils or the exciting frequencies. And low-conducting skull will exert little influence on the MIT of the brain. Future image reconstruction from real measuring data of physical models is expected and the preliminary simulation results on the brain prove MIT a hopeful and advantageous method on imaging the impedance of the human brain.
A fluorescence-based helicase assay: application to the screening of G-quadruplex ligands

Helicases, enzymes that unwind DNA or RNA structure, are present in the cell nucleus and in the mitochondrion. Although the majority of the helicases unwind DNA or RNA duplexes, some of these proteins are known to resolve unusual structures such as G-quadruplexes (G4) in vitro. G4 may form stable barrier to the progression of molecular motors tracking on DNA. Monitoring G4 unwinding by these enzymes may reveal the mechanisms of the enzymes and provides information about the stability of these structures. In the experiments presented herein, we developed a reliable, inexpensive and rapid fluorescence-based technique to monitor the activity of G4 helicases in real time in a 96-well plate format. This system was used to screen a series of G4 structures and G4 binders for their effect on the Pif1 enzyme, a 5′ to 3′ DNA helicase. This simple assay should be adaptable to analysis of other helicases and G4 structures.
Born, Not Made

Books, magazine articles, and educational programs on entrepreneurship are all based on the idea that anyone can be an entrepreneur—that entrepreneurs are made, not born. Well, maybe not. In a study of 234 CEOs funded by the Kauffman Foundation, James L. Fisher and James V. Koch came up with a surprising conclusion: Some individuals are simply more naturally fitted to become entrepreneurs than others. They are pre-wired. Because of heredity, some people are much more likely to become successful entrepreneurs or pursue entrepreneurial strategies within a corporate setting profitably. By recognizing that, this book will significantly improve corporate selection processes, strengthen entrepreneurship programs, and boost the confidence of aspiring entrepreneurs through invaluable insights. Among other things, Fisher and Koch show that true entrepreneurs not only see the world differently—they act differently. Compared with corporate managers, for example, they are more confident, more decisive, more likely to upset the apple cart, and more energetic. They love to compete but are notable for the partnerships they are able to fashion with friend and foe alike. Such conclusions are remarkable. Why? Because they are based on the only empirical comparison study yet conducted on entrepreneurship. The insights are not based on personal opinion or case studies but on valid and reliable personality indicators. Because the book shows that certain kinds of people will find it much easier to found successful companies than others, it has many practical applications. It will help organizations fit the right people into jobs requiring an entrepreneurial bent. It will challenge corporations to hire entrepreneurial CEOs who will transform businesses rather than maintain the status quo. And it will speak directly to entrepreneurs and those contemplating starting a business, who will learn if they have the right stuff to start and sustain a business. In short, this book provides insights into the entrepreneurial soul that can change the fortunes of individuals and companies for the better.
Learning Large-Scale Poisson DAG Models based on OverDispersion Scoring

In this paper, we address the question of identifiability and learning algorithms for large-scale Poisson Directed Acyclic Graphical (DAG) models. We define general Poisson DAG models as models where each node is a Poisson random variable with rate parameter depending on the values of the parents in the underlying DAG. First, we prove that Poisson DAG models are identifiable from observational data, and present a polynomial-time algorithm that learns the Poisson DAG model under suitable regularity conditions. The main idea behind our algorithm is based on overdispersion, in that variables that are conditionally Poisson are overdispersed relative to variables that are marginally Poisson. Our algorithms exploits overdispersion along with methods for learning sparse Poisson undirected graphical models for faster computation. We provide both theoretical guarantees and simulation results for both small and large-scale DAGs.
Pancreatic Response to Hind Limb Suspension in Rats is Affected by Age

Disuse and aging are associated with changes in glucose metabolism and insulin responsiveness of skeletal muscle. However, their combined effects on the islets of Langerhans in the pancreas and serum insulin levels have not been studied. The goal of this study was to investigate the response of the pancreas to disuse, induced by hind limb sus- pension (HS), in young and old animals. Male Fisher 344 X Brown Norway rats at 6 (young) and 32 (old) months of age were subjected to 14 days HS. Serum insulin and pancreas morphology were examined. Serum insulin concentration was lower in old rats, and decreased significantly following HS in young, but not old rats. Islets of Langerhans in the pancreas showed a more diffuse appearance in the old rats independent of HS, but no statistically significant differences were ob- served in islet area, cells per islet, or area occupied by islets. However, in old animals, but not young, HS was associated with an increase in islet number. No differences were observed in the percentage or area of insulin positive cells in the pancreas. We conclude that the insulin secretion response to disuse is lost at old age, and this can not be explained by changes in islet size or insulin positive cell number. The implications of changed appearance and number of islets in old rats in response to HS remain to be investigated.
Can we see gravitational collapse in (quantum) gravity perturbation theory

In this paper, by making use of the perturbative expansion around topological field theory we are trying to understand why the standard perturbation theory for General Relativity, which starts with linearized gravity does not see gravitational collapse. We start with investigating classical equations of motion. For zero Immirzi parameter the ambiguity of the standard perturbative expansion is reproduced. This ambiguity is related to the appearance of the linearized diffeomorphism symmetry, which becomes unlinked from the original diffeomorphism symmetry. Introducing Immirzi parameter makes it possible to restore the link between these two symmetries and thus removes the ambiguity, but at the cost of making classical perturbation theory rather intractable. Then we argue that the two main sources of complexity of perturbation theory, infinite number of degrees of freedom and non-trivial curvature of the phase space of General Relativity could be disentangled when studying {\it quantum} amplitudes. As an illustration we consider zero order approximation in quantum perturbation theory. We identify relevant observables, and sketch their quantization. We find some indications that this zero order approximation might be described by Doubly Special Relativity.
GRAPE: An environment to build display processes

New modelling primitives and new rendering techniques are appearing at a rapid rate. To be able to implement and evaluate them easily, we need a very flexible display environment. We describe an environment which allows experimenting both with the basic modelling and rendering operations and with the process structure of the display system.The desired operations are implemented in nodes, coded in a traditional programming language, which can then be structured into arbitrary directed acyclic graphs. These nodes are all "plug compatible", and pass streams of appels, which are generalized pixels, that is data structures containing information necessary for pixel evaluation. In addition, synchronization parameters are used to allow the expansion or the reduction of the stream of appels.This approach allows the assembly of new display systems from existing modules without coding, making it easy to experiment with different architectures and display processes. Algorithm designers are also able to test an algorithm at any point of the display process with a minimum of new coding.We describe an implementation of the scheme with a library of nodes written in C and the assembly of the graphs made through the use of the directory manipulation tools provided under UNIX™. We give examples of the uses of the implementation to build basic nodes, variations in compositing and texture mapping and special-purpose display systems.
Self-Compassion and Mindfulness Differentially Predict Eating Behaviors Among Emerging Adults

Objectives: Poor eating behaviors (EB) and food cravings (FC) represent risk factors for obesity and related outcomes. Mindfulness and self-compassion (SC) have been individually linked to healthful EB in prior research, representing salient intervention targets. While conceptualized as having health behavioral self-regulatory benefits, no research has examined these variables’ differential contributions to EB and FC. Method: Participants were 283 university undergraduates (152 females; m. age = 19.1 + 1.6; m. BMI = 23.7 + 4.2 kg/m). Multiple regression analyses in women (W) and men (M) assessed how validated measures of mindfulness and SC were associated with Fruit/Vegetable intake (FV), Emotional Eating (EE), Uncontrolled Eating (UE), Restrained Eating (RE), and FC, after controlling for distress and BMI in Step 1. In Model 1, mindfulness was entered in Step 2, and SC in Step 3; the order was reversed in Model 2. Results: Mindfulness significantly predicted FV and FC in men, and EE/UE in both genders. Results for SC differed by Model and gender. Neither construct predicted RE. Overall, mindfulness emerged a stronger predictor of eating behaviors among M than W. While the pattern of results was mixed among W by model, SC robustly and consistently predicted EE. Conclusion: These results partially replicate the previously observed relationship of mindfulness to EE, UE, and FV, and generate speculation that mindfulness may be particularly helpful for fostering healthful EB among M, whereas SC training may be prove a salient target of intervention for W high in EE.
Solving the Join Ordering Problem via Mixed Integer Linear Programming

We transform join ordering into a mixed integer linear program (MILP). This allows to address query optimization by mature MILP solver implementations that have evolved over decades and steadily improved their performance. They offer features such as anytime optimization and parallel search that are highly relevant for query optimization. We present a MILP formulation for searching left-deep query plans. We use sets of binary variables to represent join operands and intermediate results, operator implementation choices or the presence of interesting orders. Linear constraints restrict value assignments to the ones representing valid query plans. We approximate the cost of scan and join operations via linear functions, allowing to increase approximation precision up to arbitrary degrees. We integrated a prototypical implementation of our approach into the Postgres optimizer and compare against the original optimizer and several variants. Our experimental results are encouraging: we are able to optimize queries joining 40 tables within less than one minute of optimization time. Such query sizes are far beyond the capabilities of traditional query optimization algorithms with worst case guarantees on plan quality. Furthermore, as we use an existing solver, our optimizer implementation is small and can be integrated with low overhead.
Performance/Thermal-Aware Design of 3D-Stacked L2 Caches for CMPs

Three-dimensional (3D) stacking technology enables integration of more memory on top of chip multiprocessors (CMPs). As the number of cores and the capacity of on-chip memory increase, the Non-Uniform Cache Architecture (NUCA) becomes more attractive. Compared to 2D cases, 3D stacking provides more options for the design of on-chip memory due to numerous advantages, such as the extra layout dimension, low latency across layers, etc. On the other hand, 3D stacking aggravates the thermal problem due to the increase of power density. In this work, we first study the design of 3D-stacked set-associative L2 caches through managing the placement of cache ways. The evaluation results show that the placement and corresponding management of 3D cache ways have an impact on the performance of CMPs. Then, we show that the efficiency of thermal control is also related to the placement of cache ways. For caches implemented with different memory technologies, the placement and management of cache ways have different effects on power consumption and power distribution. Consequently, we propose techniques to improve the efficiency of thermal control for different memory technologies. The evaluation results show the trade-off between performance and thermal control efficiency.
Design of High-performance Digital Logic Circuits based on FinFET Technology

gate FinFET is a novel device structure used in the nanometer regime, whereas the conventional CMOS technology's performance deteriorates due to increased short channel effects (SCEs). Double-gate (DG) FinFETs has better SCEs performance compared to the conventional CMOS and stimulates technology scaling. In this paper, we are designing 32nm DGFinFETs and extracting their characteristics by using Sentaurus TCAD, Simulated results of the device show that it can be governed at the nanometer - scale regime. DGFinFET has independent gates; threshold voltage of one gate can be altered by varying the voltage at the other gate. By using this phenomenon logic circuit can be configured in one of the modes such as SG mode, LP mode, IG mode and IG/LP mode. INVERTER and NAND gate are designed in the above mentioned node and comparison has been drawn between them. Based on the simulated results SG-mode is adequate for high- performance design.
Globalization with a human face

Introduction by Jung Min Choi, John W. Murphy, and Manuel J. Caro The Traditional Ontology of Development, History, and Globalization From Below by John W. Murphy What is Globalization? Ambiguities of the Contemporary World Scene by Vincente Berdayes Globalization & Power: The Hidden Injuries of Consumerism by Stephen Shapiro Globalization & Resistance to the Market in Education by Karen A. Callaghan Does Dependency Theory Still Have Relevance in Latin America? by William Guedes Cortezia Vanishing Meaning, the Ideology of Value-Addition, and the Diffusion of Broadband Information Technology by Eric Mark Kramer Universalized Globalization and the Logistics of Identity by Algis Mickunas The Limits and Alternatives to Democracy-- Democracy in the Era of Globalization by Alejandro Serrano Caldera Nationhood, Quantum Humanism, and Latin America by Carlos Largacha-Martinez and Manuel J. Caro Towards an Embodied Global Ethic by Luigi Esposito Striking Back at Empire: A Postmodern Resistance to Neoliberalism and Globalization by Jung Min Choi and Lawrence Byrne About the Editors About the Contributors
Constraints on the ionization sources of the high‐redshift intergalactic medium

Constraints on the ionization structure of the intergalactic medium (IGM) are derived as directly imposed by observations in conjunction with the results of numerical simulations for structure formation. Under the assumption that the population of sources dominating the ultraviolet (UV) ionizing background at z < 6i sthe same population which reionized the IGM, it is shown that consistency with measurements of the mean Lyα transmitted flux at high redshifts requires the epoch of hydrogen reionization of the IGM to have occurred at a redshift z ri < 11, independent of the space density of the sources. The upper limit on the reionization redshift depends only on the shape of the UV spectra of the sources. Consistency with constraints on the reionization epoch from the Wilkinson Microwave Anisotropy Probe requires the sources of photoionization to have had hard spectra, such as quasi-stellar objects (QSOs) or Population III stars. The only ways to escape these conclusions are either (i) the sources which dominate the photoionization background at z < 6 are the remnants of a population that was a much more prodigious source of ionizing photons at earlier times, or (ii) the sources responsible for the photoionization of the IGM are an unknown population that contributes negligibly to the ionization of the IGM at z < 6. The evolution of the QSO luminosity function over the range 3 < z < 6i sestimated from recent QSO counts, and the fraction of ionizing photons arising in QSOs is evaluated under the assumptions of either pure luminosity evolution or pure density evolution. It is shown that QSOs dominate the UV ionizing background for z < 3.5, but that it is unlikely that more than one-half to one-third of the ionizing background radiation originates in QSOs in the redshift range 4.5 < z < 6. QSOs acting alone could not have reionized the hydrogen in the IGM prior to z ≈ 4. If the QSOs had hard spectra, however, they may have reionized the helium in the IGM as early as z ≈ 5. The possibility that the IGM was reionized by low-luminosity active galactic nuclei is discussed. Ke yw ords: methods: numerical ‐ intergalactic medium ‐ quasars: absorption lines ‐ quasars: general ‐ X-rays: diffuse background.
Effect of training on epinephrine-stimulated lipolysis determined by microdialysis in human adipose tissue.

Trained humans (Tr) have a higher fat oxidation during submaximal physical work than sedentary humans (Sed). To investigate whether this reflects a higher adipose tissue lipolytic sensitivity to catecholamines, we infused epinephrine (0.3 nmol.kg-1.min-1) for 65 min in six athletes and six sedentary young men. Glycerol was measured in arterial blood, and intercellular glycerol concentrations in abdominal subcutaneous adipose tissue were measured by microdialysis. Adipose tissue blood flow was measured by 133Xe-washout technique. From these measurements adipose tissue lipolysis was calculated. During epinephrine infusion intercellular glycerol concentrations were lower, but adipose tissue blood flow was higher in trained compared with sedentary subjects (P < 0.05). Glycerol output from subcutaneous tissue (Tr: 604 +/- 322 nmol.100 g-1.min-1; Sed: 689 +/- 203; mean +/- SD) as well as arterial glycerol concentrations (Tr: 129 +/- 36 microM; Sed: 119 +/- 56) did not differ between groups. It is concluded that in intact subcutaneous adipose tissue epinephrine-stimulated blood flow is enhanced, whereas lipolytic sensitivity to epinephrine is the same in trained compared with untrained subjects.
Scalable Directory Services Using Proactivity

Common to computational grids and pervasive computing is the need for an expressive, efficient, and scalable directory service that provides information about objects in the environment. We argue that a directory interface that ‘pushes’ information to clients about changes to objects can significantly improve scalability. This paper describes the design, implementation, and evaluation of the Proactive Directory Service (PDS). PDS’ interface supports a customizable ‘proactive’ mode through which clients can subscribe to be notified about changes to their objects of interest. Clients can dynamically tune the detail and granularity of these notifications through filter functions instantiated at the server or at the object’s owner, and by remotely tuning the functionality of those filters. We compare PDS’ performance against off-the-shelf implementations of DNS and the Lightweight Directory Access Protocol. Our evaluation results confirm the expected performance advantages of this approach and demonstrate that customized notification through filter functions can reduce bandwidth utilization while improving the performance of both clients and directory servers.
Springtime connections between the large-scale sea-level pressure field and gust wind speed over Iberia and the Balearics

This paper investigates, by means of Singular Value Decomposition analysis, the springtime relationships between the mean sea-level pressure field over the North Atlantic and the regional wind gusts over the Iberian Peninsula, identifying the main atmospheric circulation patterns linked to gust wind speed anomaly configurations. The statistical significance of the obtained modes is investigated by means of Monte Carlo approach. The analysis highlighted that the covariability is dominated by two main large-scale features of the atmospheric circulation over the North Atlantic. The first mode relates to Iberian gust wind speeds to the Scandinavian pattern (SCAND), linking the large-scale pattern to above-normal wind gusts. The second covariability mode, associated with the North Atlantic Oscillation (NAO) pattern, correlates with maximum wind speeds over Iberia. An enhanced spring NAO pattern is related to positive (negative) wind gust correlations over northern (southern) Iberia. To find true relationships between large-scale atmospheric field and the gust wind speeds, composite maps were built up to give an average atmospheric circulation associated with coherent wind gust variability over Iberia.