The Extent of Job Search during Layoff

macroeconomics,job search, layoff

Trait-level Predictors of Objectification in Heterosexual Men

This item is only available electronically.Sexual objectification is a problem routinely faced by nearly all Australian women, yet little work has been done to understand the traits of heterosexual men who are most likely to objectify women. Sexual objectification occurs when a woman’s sexual parts or functions are separated from the rest of her personhood for either use or to replace her identity. Experiencing sexual objectification is associated with increased body shame and eating disorder symptoms, and has been experimentally linked to reduced cognitive performance. The present study aimed to determine the strongest trait-level predictors of sexually objectifying behaviours and attitudes in heterosexual men. 164 heterosexual adult males completed a short online survey which measured traits including aggression, empathy, hostile sexism, benevolent sexism, and desire for power, as well as a measure of interpersonal sexual objectification (both behaviours and attitudes). This study also considered, as a secondary aim, the relationship between dehumanisation and objectification. Higher levels of sexual objectification perpetration were associated with lower levels of empathy, lower agreeableness, lower openness, increased hostile and benevolent sexism, increased aggression, and an increased desire to have power over others. Regression analyses indicated that hostile sexism and affective empathy explained unique variance in the prediction of sexual objectification. Results also indicated that animalistic dehumanisation of women was associated with sexual objectification of women. This research is an early, but nonetheless necessary, steppingstone in the development of interventions to help reduce sexual objectification in Australian society.Thesis (B.PsychSc(Hons)) -- University of Adelaide, School of Psychology, 202

Comparison of Dual-beamforming Algorithms on Nearfield Locational Audio Signals

In many applications it is desirable to focus on the direction a signal is coming from to isolate the signal from interfering noise coming from other directions. This is often done by focusing the receiver on a given direction. One method to accomplish this focusing is to use an array of receivers and a signal processing algorithm called beamforming. This algorithm attenuates signals coming from all other directions besides the direction of interest, which can be viewed pictorially as a beam. However, it would also benefit many applications to be able to focus on a location rather than just a direction. This can be accomplished in the nearfield using two beamforming arrays. When these two arrays are used together their beams cross in a location and focus on the signals coming from that location. However, another approach that could be taken to accomplish this locational targeting of a signal, in the nearfield, would be to take advantage of the spherical wave front coming from the signal source to identify its origin. Using the Whittaker-Shannon interpolation formula, locational beamforming can be accomplished that would require only one array of microphones. In order to understand the benefits and differences of both approaches, they were both implemented using an array of microphones and a desktop computer and then tested in a soundproof room. The goal of this experiment was to test the speed of each algorithm and the number of microphones required to get a below a certain response

Comparison of Locational Beamforming Algorithms for Audio Targeting

In many applications it is desirable to focus on the direction a signal is coming from to isolate the signal from interfering noise coming from other directions. This is often done by focusing the receiver on a given direction. One method to accomplish this focusing is to use an array of receivers and a signal processing algorithm called beamforming. This algorithm attenuates signals coming from all other directions besides the direction of interest, which can be viewed pictorially as a beam. However, it would also benefit many applications to be able to focus on a location rather than just a direction. This can be accomplished in the nearfield using two beamforming arrays. When these two arrays are used together their beams cross in a location and focus on the signals coming from that location. However, another approach that could be taken to accomplish this locational targeting of a signal, in the nearfield, would be to take advantage of the spherical wave front coming from the signal source to identify its origin. Using the Whittaker-Shannon interpolation formula, locational beamforming can be accomplished that would require only one array of microphones. In order to understand the benefits and differences of both approaches, they were both implemented using an array of microphones and a desktop computer and then tested in a soundproof room. The goal of this experiment was to test the spatial separation capabilities of each algorithm

Alternative Doppler Extraction for Indoor Communication Signals

Radar is a common detection system for detecting the speed and velocity of moving objects. Radar is performed by transmitting a radio signal in the direction of a moving object and then processing the received reflected radio waves. The radar system processes the received signal to extract the Doppler frequency of the reflected waves, which reveals information about the velocity of the object. In traditional radar, the system uses one antenna for both the transmitter and the receiver. In passive bistatic radar, the transmit antenna and receiver antenna are separated. In addition, the radar system has no control over the transmitter. The transmitted signal is instead a signal of opportunity. Signals of opportunity include FM and AM radio signals, satellite GPS signals, and WiFi signals. The receiver in the radar system receives a signal of opportunity and extracts the Doppler frequency from the signal. The Doppler frequency can then be used to get the velocity of the object, which can be used for tracking the object. In previous research, the methods of traditional radar were applied to passive bistatic radar using a WiFi signal in order to track a moving object within a building. Traditional radar methods are to compare the Doppler-shifted signal to the original signal. In passive radar, the original signal needs to be measured without being affected by the Doppler-shifted signal, which requires a second antenna to be placed by the transmitter. The research presented suggests a new method of retrieving the Doppler frequencies from a communication signal. This new method does not require a separate antenna to get the original signal but uses knowledge about the communication signal to successfully measure the Doppler frequency on the signal. The system was implemented using GNURadio, a software-defined radio library. Additional processing was done using MATLAB

LITTLE GIRLS TO ADVANCED GYMNASTS: WHAT CAN WE LEARN FROM THE SURVIVING GYMNASTS?

TTalent identification programmes are widely employed in gymnastics to select young girls whom are thought to exhibit the pre-requisite traits to excel at the elite level in the future. This study revisits the Thomas, Wilson, and Bradshaw (2013) paper on 5-8 year old talent selected artistic gymnasts. The Gymnastics Victoria and Gymnastics Australia websites were data mined to track the competition history of these gymnasts. The original data (e.g. anthropometry, jump biomechanics) of the gymnasts that survived to an advanced level were compared against those whom did not, using the Kruskal Wallis test. The analysis revealed that better drop jump performance was the key indicator of longer term talent potential. Prospective analysis on surviving gymnasts provides better insights on the key attributes related to future advanced gymnastics potential

Sexual behaviour patterns in South Africa and their association with the spread of HIV: insights from a mathematical model

This paper aims to quantify the effects of different types of sexual risk behaviour on the spread of HIV in South Africa. A mathematical model is developed to simulate changes in numbers of sexual partners, changes in marital status, changes in commercial sex activity and changes in the frequency of unprotected sex over the life course. This is extended to allow for the transmission of HIV, and the model is fitted to South African HIV prevalence data and sexual behaviour data. Results suggest that concurrent partnerships and other non-spousal partnerships are major drivers of the HIV/AIDS epidemic in South Africa.AIDS/HIV, sexual behavior, simulation model, South Africa

INFLUENCE OF IMPELLER SUCTION SPECIFIC SPEED ON VIBRATION PERFORMANCE

LectureThe most commonly used hard limitation for pump suction specific speed is 11,000 (US units). This hard limit grew out of the recommendations from a 1982 reliability study by J.L. Hallam (Hallam 1982). Concomitant testing of the vibration performance of an OH2 4x6-11 pump was made with impellers designed for different suction specific speeds (Lobanoff and Ross 1985). This study showed that all things being equal, a strong relationship existed between suction specific speed and the pump vibration at off BEP operation. Given the significant changes in impeller design methods and computational tools in the subsequent three decades, this paper seeks to investigate how these new methods/tools have affected the relationship between suction specific speed and the pump vibration. 3rd Middle East Turbomachinery Symposium (METS III) 15-18 February 2015 | Doha, Qatar | mets.tamu.edu Copyright© 2015 by Turbomachinery Laboratory, Texas A&M Engineering Experiment Station 2 Experiments are performed using a series of impellers designed for different suction specific speeds using modern design techniques. These impellers are mounted in a subject test pump which is also an OH2 4x6-11 in order to achieve equivalency with the prior testing. Vibration performance over the pump operating range is recorded. The results are complemented with computational fluid dynamic (CFD) analysis to further examine the performance of each impeller