276 research outputs found

    Modern Unilateral Contracts

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    Why would anyone write about unilateral contracts today? After all, Karl Llewellyn argued convincingly more than forty years ago\u27 that unilateral contracts are rare and unimportant and should be relegated to the freak tent. \u27 2 Academics, he said, created the Great Dichotomy between unilateral and bilateral contracts; lack of support for the unilateral contract idea in the cases required those academics to illustrate the concept with ridiculous hypotheticals about climbing greased flagpoles and crossing the Brooklyn Bridge. The drafters of the Second Restatement of Contracts thus considered it a step forward when they not only minimized the importance of the unilateral-bilateral distinction but sought to eliminate the term unilateral contract from the lexicon of the law. Today, those commentators who still deem the subject worthy of mention applaud the burial of the unilateral contract.3 Why unearth the decaying corpse

    Oxygen-Partial-Pressure Sensor for Aircraft Oxygen Mask

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    A device that generates an alarm when the partial pressure of oxygen decreases to less than a preset level has been developed to help prevent hypoxia in a pilot or other crewmember of a military or other high-performance aircraft. Loss of oxygen partial pressure can be caused by poor fit of the mask or failure of a hose or other component of an oxygen distribution system. The deleterious physical and mental effects of hypoxia cause the loss of a military aircraft and crew every few years. The device is installed in the crewmember s oxygen mask and is powered via communication wiring already present in all such oxygen masks. The device (see figure) includes an electrochemical sensor, the output potential of which is proportional to the partial pressure of oxygen. The output of the sensor is amplified and fed to the input of a comparator circuit. A reference potential that corresponds to the amplified sensor output at the alarm oxygen-partial-pressure level is fed to the second input of the comparator. When the sensed partial pressure of oxygen falls below the minimum acceptable level, the output of the comparator goes from the low state (a few millivolts) to the high state (near the supply potential, which is typically 6.8 V for microphone power). The switching of the comparator output to the high state triggers a tactile alarm in the form of a vibration in the mask, generated by a small 1.3-Vdc pager motor spinning an eccentric mass at a rate between 8,000 and 10,000 rpm. The sensation of the mask vibrating against the crewmember s nose is very effective at alerting the crewmember, who may already be groggy from hypoxia and is immersed in an environment that is saturated with visual cues and sounds. Indeed, the sensation is one of rudeness, but such rudeness could be what is needed to stimulate the crewmember to take corrective action in a life-threatening situation

    Method and apparatus for monitoring oxygen partial pressure in air masks

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    Method and apparatus are disclosed for monitoring an oxygen partial pressure in an air mask and providing a tactile warning to the user. The oxygen partial pressure in the air mask is detected using an electrochemical sensor, the output signal from which is provided to a comparator. The comparator compares the output signal with a preset reference value or range of values representing acceptable oxygen partial pressures. If the output signal is different than the reference value or outside the range of values, the air mask is vibrated by a vibrating motor to alert the user to a potentially hypoxic condition

    2006 Housing in the Nation's Capital

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    Explores the interdependent relationship between public school systems and housing markets, and examines the ability of coordinated investment in affordable housing and quality education to revitalize Washington, D.C., metropolitan area neighborhoods

    Coming in Warm: Qualitative Study and Concept Map to Cultivate Patient‐Centered Empathy in Emergency Care

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    Background Increased empathy may improve patient perceptions and outcomes. No training tool has been derived to teach empathy to emergency care providers. Accordingly, we engaged patients to assist in creating a concept map to teach empathy to emergency care providers. Methods We recruited patients, patient caretakers and patient advocates with emergency department experience to participate in three separate focus groups (n = 18 participants). Facilitators guided discussion about behaviors that physicians should demonstrate in order to rapidly create trust, enhance patient perception that the physician understood the patient's point of view, needs, concerns, fears, and optimize patient/caregiver understanding of their experience. Verbatim transcripts from the three focus groups were read by the authors and by consensus, 5 major themes with 10 minor themes were identified. After creating a codebook with thematic definitions, one author reviewed all transcripts to a library of verbatim excerpts coded by theme. To test for inter‐rater reliability, two other authors similarly coded a random sample of 40% of the transcripts. Authors independently chose excerpts that represented consensus and strong emotional responses from participants. Results Approximately 90% of opinions and preferences fell within 15 themes, with five central themes: Provider transparency, Acknowledgement of patient's emotions, Provider disposition, Trust in physician, and Listening. Participants also highlighted the need for authenticity, context and individuality to enhance empathic communication. For empathy map content, patients offered example behaviors that promote perceptions of physician warmth, respect, physical touch, knowledge of medical history, explanation of tests, transparency, and treating patients as partners. The resulting concept map was named the “Empathy Circle”. Conclusions Focus group participants emphasized themes and tangible behaviors to improve empathy in emergency care. These were incorporated into the “Empathy Circle”, a novel concept map that can serve as the framework to teach empathy to emergency care providers

    Rape Myth Acceptance and Willingness to Intervene: A Comparison of Greek-Affiliated and Non-Affiliated College Students by Gender

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    Fraternity and sorority members are overrepresented as perpetrators and victims of sexual assault, respectively. The current study examined rape myth acceptance, bystander attitudes, and bystander efficacy across four groups: sorority women, fraternity men, non-affiliated women, and non-affiliated men. Data were collected from 912 college undergraduates. Greek affiliated students were more accepting of rape myths than non-affiliated students. There were no differences in bystander attitudes based on Greek affiliation; however, Greek affiliated students did report significantly lower bystander efficacy than non-affiliated students. Sorority women and fraternity men reported no differences in their acceptance of rape myths or bystander efficacy; however, sorority women did report higher bystander attitudes than fraternity men. Based on the findings, it is recommended that prevention practitioners work to change norms within fraternities and sororities to promote a social identity that is associated with gender equality and a willingness, perhaps even an obligation, to intervene in risky situations.Faculty Sponsor: Amber Paulk; Andrea Hunt; Yaschica Williams; Ryan Zaya

    Optimizing Software Team Performance with Cultural Differences

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    Software development is primarily a team task that requires a high degree of coordination among team members. Prior research has indicated that the composition of team member traits such as personality and culture can influence the performance of software teams. However, this line of research does not give practical guidance on how to build teams with personnel constraints. Some research has built teams by starting with personality. However, cultural traits—which are also known to influence team performance—have not been examined in the same manner. This research, therefore, builds upon this stream by: 1) examining the effects of Hofstede’s latest six-dimensional model of national culture, 2) segmenting potential software team members into distinct cultural clusters, and 3) testing the outcomes of teams built upon homogeneous versus heterogeneous cultural compositions over time. Our results indicate that—consistent with prior research—homogenous team compositions are initially better for performance. However, this effect reverses over time, and ultimately heterogenous team compositions are superior
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