Suitability of HI-FI sound systems in measurements of reverberation time in domestic multi-media rooms

Reverberation time measurements are taken as part of the acoustic design of residential performance rooms such as home cinemas, listening rooms and studios This study examines the suitability of using Hi-Fi sound systems for the reverberation time measurements in domestic multi-media rooms Seven residential rooms were measured for reverberation time (T20) following ISO 3382-02-2008 using in turn a dodecahedron source, and Hi-Fi loudspeakers as the excitation sound sources. Tests used gated pink noise as well as integrated impulse response methods and results were compared. Overall T20 results from both sound sources agreed within 5% from 500Hz upwards, remaining very closely aligned as the frequency increased. A discrepancy of around 10% was observed between results obtained from both methods regardless of sound source employed This study showed that Hi-Fi loudspeakers can be a suitable and reliable sound source for reverberation time measurements in multi-media domestic rooms. This finding can give confidence in the use of existing Hi-Fi loudspeakers installed in domestic rooms to aid in their interior acoustic design

Being tough doesn’t always pay off: The culture of honor vs dignity in negotiation

Early work on cross-cultural negotiation has focused on East-West differences. In the current study we investigate the negotiation scripts employed by Middle Eastern negotiators, more specifically Iranian negotiators, in an intracultural interaction, compared to North American negotiators. We examine how the Iranian worldviews, beliefs, norms, and social behavior influence their goals and aspirations, negotiation tactics, and ultimately final outcome. We formulated our hypotheses based on the theory of honor-dignity cultures and illustrate how the importance of preserving and maintaining honor influences the Iranian negotiation strategies in business dealings. Our results illustrate that consistent with the culture of honor, Iranian negotiators are more likely to be competitive, express emotions, and employ distributive tactics compared to Canadian negotiators. Moreover, this competitive mindset leaves Iranian negotiators at a disadvantage as the overall joint gain is significantly lower than Canadian negotiators

Surface tension induced convection in encapsulated liquid metals in microgravity: Apollo-Soyuz test project experiment no. MA-041

This experiment was designed to determine the extent of surface tension induced convection caused by a steplike compositional variation in a liquid metal. Preliminary results are presented

A study of the B (3He, p)13C and B (3He, 3He) B reactions

The purpose of this experiment was to study the 11B(3He, p)13C and the 11B(3He, 3He) 11B reactions. The proton angular distributions were analyzed in terms of the plane wave stripping theory of Newns and the optical model was used to fit the elastic scattering data. All the experimental measurements were made with the 5.5 Mev Van de Graaff at the Oak Ridge National Laboratory. The reaction products were observed with silicon surface barrier detectors. A particle identification system, which identifies the type and energy of the incident particle, was used to facilitate the interpretation of the pulse-height spectra. Proton angular distributions, corresponding to the ground and first excited states of 13C for an incident 3He energy of 12 Mev and for the ground, first, second, sixth, eighth, ninth, and thirteenth excited states of 13C for an incident 3He energy of 10 Mev, were obtained. Spin and parity assignments were made for the eighth and thirteenth excited states of 13C for which no values have been reported. The spin and parity assignments for the other groups were consistent with those reported from other experiments. The elastic scattering of 3He particles was analyzed at 8, 10, and 12 Mev. The experimental results were satisfactorily interpreted in terms of the optical model

Texas Business Review, January 1976

The Business Situation in Texas; The Last Hundred Years; The Next Hundred Years; Electric Funds Transference: Development and Prospects; Texas Construction: Four Decades of ChangeBureau of Business Researc

The sexual health needs of looked after young people; findings from qualitative interviews led through public health and health psychology.

Background - Looked after young people (LAYP) have poorer sexual health outcomes than their peers. However, research seldom examines the health needs of, or intervenes with, this group. The aim of the current study was to identify LAYP's perceived sexual health needs and explore sources of sexual health information, knowledge levels, concerns and service preferences. Methods - Looked after young people within Fife, Scotland, were recruited through their workers and carers to participate in qualitative semi-structured interviews. Those aged 12–19 years were targeted for recruitment. National Health Services ethics approval was granted. Thematic analysis was conducted using NVivo. Results - Interviews were conducted with 10 LAYP. Key themes included gaps in knowledge, and gaps between knowledge and behaviour. Being ‘looked after’ may have negative consequences on knowledge, sources of support and safer sex. A flexible, one-to-one service, aimed at several lifestyle issues, not solely sexual health, was preferred by respondents. Conclusion - Looked after young people require support to bridge the gap between knowledge and behaviour and several theories relevant to the findings have been identified. Participants desired more support around a range of health issues, which may come from school, workers and carers, as well as health professionals. Further research examining effective interventions with this group is crucial to improve outcomes