University of Wisconsin–Milwaukee

About: University of Wisconsin–Milwaukee is a education organization based out in Milwaukee, Wisconsin, United States. It is known for research contribution in the topics: Population & Gravitational wave. The organization has 11839 authors who have published 28034 publications receiving 936438 citations. The organization is also known as: UWM & University of Wisconsin-Milwaukee.

Neural and Hormonal Control of Parental Behavior in Birds

Abstract: Publisher Summary Birds exhibit a wide spectrum of parental care patterns ranging from brood parasitism, in which no parental behavior is displayed, to full-time attentiveness to the eggs and young by one or both parents. This chapter reviews the neural and hormonal mechanisms that regulate parental care expression in galliform and columbiform species. It attempts to relate the evidence to that obtained in other avian species that have received less experimental attention. For purposes of this discussion, parental behavior is defined as those activities directed toward care of eggs or young. However, it is important to emphasize that these behaviors arise from antecedent events. At the risk of minimizing the importance of physiological and stimulus continuity in promoting transitions from one form of parental activity to another during the breeding cycle, the neural and hormonal regulation of parental activities exhibited prior to hatching (that is, incubation behavior) are discussed separately from those occurring after hatching (brooding and feeding the young). The chapter also discusses the physiological determinants of nest defense behavior that is displayed both before and after hatching in many species.

Organizations' Information Security Policy Compliance: Stick or Carrot Approach?

Abstract: Companies' information security efforts are often threatened by employee negligence and insider breach. To deal with these insider issues, this study draws on the compliance theory and the general deterrence theory to propose a research model in which the relations among coercive control, which has been advocated by scholars and widely practiced by companies; remunerative control, which is generally missing in both research and practice; and certainty of control are studied. A Web-based field experiment involving real-world employees in their natural settings was used to empirically test the model. While lending further support to the general deterrence theory, our findings highlight that reward enforcement, a remunerative control mechanism in the information systems security context, could be an alternative for organizations where sanctions do not successfully prevent violation. The significant interactions between punishment and reward found in the study further indicate a need for a more comprehensive ...

Economic Allocation for Energy Storage System Considering Wind Power Distribution

Abstract: Energy storage systems play a significant role in both distributed power systems and utility power systems Among the many benefits of an energy storage system, the improvement of power system cost and voltage profile can be the salient specifications of storage systems Studies show that improper size and placement of energy storage units leads to undesired power system cost as well as the risk of voltage stability, especially in the case of high renewable energy penetration To solve the problem, a hybrid multi-objective particle swarm optimization (HMOPSO) approach is proposed in the paper to minimize the power system cost and improve the system voltage profiles by searching sitting and sizing of storage units under consideration of uncertainties in wind power production Furthermore, the probability cost analysis is first put forward in this paper The proposed HMOPSO combines multi-objective particle swarm optimization (MOPSO) algorithm with elitist nondominated sorting genetic algorithm (NSGA-II) and probabilistic load flow technique It also incorporates a five-point estimation method (5PEM) for discretizing wind power distribution The IEEE 30-bus system is adopted to perform case studies The simulation results for each case clearly demonstrate the necessity for optimal storage allocation, and the effectiveness of the proposed method

Conformal energy-momentum tensor in curved spacetime: Adiabatic regularization and renormalization

Abstract: In preparation for an investigation of whether field-theoretic effects helped to make the early universe become isotropic, we seek to determine the physical (divergence-free) energy-momentum tensor through which the geometry of spacetime is influenced by a quantized scalar field with conformal ("new improved") coupling to the metric. The cosmological models studied are the Kasner-like (type I) metrics (homogeneous, spatially flat, nonrotating, but anisotropic), and also the isotropic Robertson-Walker metrics. The methods employed have previously been expounded in the context of a minimally coupled scalar field and a Robertson-Walker metric. Three divergent leading terms are extracted from an adiabatic expansion of the formal expressions for the expectation values of the energy density and pressures. In the Kasner case a slight reshuffling of the leading terms in the energy density displays all divergences to be proportional to either the metric tensor or a second-order curvature tensor which vanishes when the spacetime is isotropic; hence a finite energy-momentum tensor remains after renormalization of the cosmological constant and one other coupling constant in a generalized Einstein equation. In the Robertson-Walker cases, because of conformal flatness, there is no divergence beyond the usual quartically divergent constant vacuum energy; when the mass is not zero, however, a finite renormalization of the gravitational constant is suggested. The correctness of the methods is tested by considering a coordinate system in which flat spacetime assumes the form of a Kasner universe: The adiabatic definition of particle number and vacuum, which is basic to our expansion and renormalization methods, is seen to be consistent with the usual flat-space concepts.

Matter effects on binary neutron star waveforms

Abstract: Using an extended set of equations of state and a multiple-group multiple-code collaborative effort to generate waveforms, we improve numerical-relativity-based data-analysis estimates of the measurability of matter effects in neutron-star binaries. We vary two parameters of a parameterized piecewise-polytropic equation of state (EOS) to analyze the measurability of EOS properties, via a parameter {\Lambda} that characterizes the quadrupole deformability of an isolated neutron star. We find that, to within the accuracy of the simulations, the departure of the waveform from point-particle (or spinless double black-hole binary) inspiral increases monotonically with {\Lambda}, and changes in the EOS that did not change {\Lambda} are not measurable. We estimate with two methods the minimal and expected measurability of {\Lambda} in second- and third- generation gravitational-wave detectors. The first estimate, using numerical waveforms alone, shows two EOS which vary in radius by 1.3km are distinguishable in mergers at 100Mpc. The second estimate relies on the construction of hybrid waveforms by matching to post-Newtonian inspiral, and estimates that the same EOS are distinguishable in mergers at 300Mpc. We calculate systematic errors arising from numerical uncertainties and hybrid construction, and we estimate the frequency at which such effects would interfere with template-based searches.