Production and processing of Cu-Cr-Nb alloys

A new Cu-based alloy possessing high strength, high conductivity, and good stability at elevated temperatures was recently produced. This paper details the melting of the master alloys, production of rapidly solidified ribbon, and processing of the ribbon to sheet by hot pressing and hot rolling

Time resolution below 100 ps for the SciTil detector of PANDA employing SiPM

The barrel time-of-flight (TOF) detector for the PANDA experiment at FAIR in Darmstadt is planned as a scintillator tile hodoscope (SciTil) using 8000 small scintillator tiles. It will provide fast event timing for a software trigger in the otherwise trigger-less data acquisition scheme of PANDA, relative timing in a multiple track event topology as well as additional particle identification in the low momentum region. The goal is to achieve a time resolution of sigma ~ 100 ps. We have conducted measurements using organic scintillators coupled to Silicon Photomultipliers (SiPM). The results are encouraging such that we are confident to reach the required time resolution.Comment: 10 pages, 7 figure

Perpetration experience and gender predicting empathy with a stranger or acquaintance rapist

This study examined empathy with a hypothetical rapist based on experimentally varied type of rape (stranger; acquaintance), participant perpetration experience, and gender. Undergraduate students (115 male, 206 female) completed the Rape Perpetrator Empathy-During Subscale and Sexual Experiences Survey. Hypotheses were partially supported. Sexual perpetrators (of acquaintances) reported greater empathy than nonperpetrators, and men reported greater empathy than women. Type of rape was not significant. Findings support past research, but more data from rapists is needed

Impact of Colored Noise on the Acute Stress Response

In psychoacoustics, noise can be categorized as different ‘colors’, which refers to the varying power and spread of noise signals over the spectrum of sound frequencies. White noise contains all frequencies at equal volumes, and pink noise, in which the power spectral density of the sound is inverse to the frequency. Both have been studied for their effects on sleep and relaxation. However, little research exists on the topic of colored noise usage for stress reduction and the effects it may have on the acute stress response.https://digitalcommons.morris.umn.edu/urs_2023/1000/thumbnail.jp

Study of fuel cells using storable rocket propellants quarterly report no. 2, 18 may - 17 aug. 1965

Catalysts for Aerozine-50 reforming and nitrogen tetroxide decomposition for development of rocket fuel cells operating on storable propellan

Chemical fractionation of siderophile elements in impactites from Australian meteorite craters

The abundance pattern of siderophile elements in terrestrial and lunar impact melt rocks was used extensively to infer the nature of the impacting projectiles. An implicit assumption made is that the siderophile abundance ratios of the projectiles are approximately preserved during mixing of the projectile constituents with the impact melts. As this mixture occurs during flow of strongly shocked materials at high temperatures, however there are grounds for suspecting that the underlying assumption is not always valid. In particular, fractionation of the melted and partly vaporized material of the projectile might be expected because of differences in volatility, solubility in silicate melts, and other characteristics of the constituent elements. Impactites from craters with associated meteorites offer special opportunities to test the assumptions on which projectile identifications are based and to study chemical fractionation that occurred during the impact process

Exploring Criminal Thinking Patterns and Cognitions in High Risk Sexually and Non-Sexually Violent Offenders

The current understanding of shared offense supporting attitudes between different offender types is limited. This study compares criminal thinking styles and rape supportive attitudes between high-risk offenders who have engaged in either sexual or violent behavior. A sample of 237 incarcerated male high risk sexually violent and non-sexually violent offenders participated in a study where they completed a series of self-report questionnaires including the Psychological Inventory of Criminal Thinking Styles (PICTS) (Walters, 1995) and Bumby’s (1996) MOLEST and RAPE scales. Significant differences in criminal thinking between offender types was hypothesized. Significant overlap of rape supporting cognitive distortions, regardless of offender type was hypothesized. Hypotheses were partially supported. Implications for assessment and prevention are discussed

Role of route previewing strategies on climbing fluency and exploratory movements

This study examined the role of route previewing strategies on climbing fluency and on exploratory movements of the limbs, in order to understand whether previewing helps people to perceive and to realize affordances. Eight inexperienced and ten experienced climbers previewed a 10 m high route of 5b difficulty on French scale, then climbed it with a top-rope as fluently as possible. Gaze behavior was collected from an eye tracking system during the preview and allowed us to determine the number of times they scanned the route, and which of four route previewing strategies (fragmentary, ascending, zigzagging, and sequence-of-blocks) they used. Five inertial measurement units (IMU) (3D accelerometer, 3D gyroscope, 3D magnetometer) were attached to the hip, both feet, and forearms to analyze the vertical acceleration and direction of each limb and hip during the ascent. We were able to detect movement and immobility phases of each IMU using segmentation and classification processes. Depending on whether the limbs and/or hip were moving, five states of behavior were detected: immobility, postural regulation, hold exploration, hold change, and hold traction. Using cluster analysis we identified four clusters of gaze behavior during route previewing depending on route preview duration, number of scan paths, fixations duration, ascending, zigzagging, and sequence-of-blocks strategies. The number of scan paths was positively correlated with relative duration of exploration and negatively correlated with relative duration of hold changes during the ascent. Additionally, a high relative duration of sequence-of-blocks strategy and zigzagging strategy were associated with a high relative duration of immobility during the ascent. Route previewing might help to pick up functional information about reachable, graspable, and usable holds, in order to chain movements together and to find the route. In other words, route previewing might contribute to perceiving and realizing nested affordances