Anisotropic field dependence of the magnetic transition in Cu2Te2O5Br2

We present the results of measurements of the thermal conductivity of Cu2Te2O5Br2, a compound where tetrahedra of Cu^{2+} ions carrying S=1/2 spins form chains along the c-axis of the tetragonal crystal structure. The thermal conductivity kappa was measured along both the c- and the a-direction as a function of temperature between 3 and 300 K and in external magnetic fields H up to 69 kOe, oriented both parallel and perpendicular to the c-axis. Distinct features of kappa(T) were observed in the vicinity of T_N=11.4 K in zero magnetic field. These features are unaltered in external fields which are parallel to the c-axis, but are more pronounced when a field is applied perpendicularly to the c-axis. The transition temperature increases upon enhancing the external field, but only if the field is oriented along the a-axis.Comment: 5 pages, 3 figure

A Measure for Ending Hunger in the United States

Hunger is a persistent problem in the United States. In 1999, three percent of U.S. households (more than 7.5 million people) were food insecure with hunger.2(p7) An additional seven percent of households (more than 23 million people) were food insecure without hunger. In all, 31 million Americans, including 12 million children, did not have enough food to meet their basic needs.In response, PARTNERS IN ENDING HUNGER (a grass-roots organization with over 17 years of experience) has declared itself an organization accountable for providing communities with the tools and training necessary to create and implement effective action plans for ending hunger (see Appendix A). Two essential tools for this work are: (1) a direct and accurate way to measure hunger in a community and (2) criteria that define when hunger has ended.The hunger measure PARTNERS has chosen is the U.S. Household Food Security Measure. It is a survey instrument and severity scale developed under the joint leadership of the U.S. Departments of Agriculture (USDA) and Health and Human Services (HHS). It has been used to measure the extent of hunger at national and state levels since 1995 and was specifically designed to be used at the local level as well.Building on distinctions and definitions presented in the U.S. Household Food Security Measure, PARTNERS has established criteria that define when hunger in a community has ended. According to PARTNERS' criteria, a community has ended hunger when, for two consecutive years, the results of the U.S. Household Food Security Measure show that none of the community's households have members who experience hunger and four percent or fewer of the community's households experience food insecurity. PARTNERS asserts that when communities meet these criteria and sustain these results over time, they have ended the persistence of hunger. These communities will then serve as models and catalysts for other communities to do the same

Separation and Surface Nuclei Effects in a Cavitation Susceptibility Meter

This work is concerned with the effects of flow separation and surface nuclei on the operation of a fixed geometry Cavitation Susceptibility Meter (CSM) with laminar flow. Cavitation is induced under controlled conditions at the throat of a glass venturi tube for the measurement of the active nuclei concentration in water samples as a function of the applied tension. Both cavitation and flow velocity are monitored optically by a Laser Doppler Velocimeter. The throat pressure is determined indirectly from the upstream pressure and the local flow velocity. The results show that laminar flow separation and surface nuclei effects are the most stringent operational limitations. Separation in the diffuser increases the minimum attainable throat pressure above the susceptibility of most cavitation nuclei commonly found in technical waters. Surface nuclei can generate extensive sheet or spot cavitation at relatively high tensions even on optically finished glass surfaces. These phenomena are difficult to eliminate and bring therefore into question the practical utility of CSM's with laminar flow and fixed geometry for the measurement of the dependence of the cavitating nuclei concentration over wide ranges of the applied tension, as required for cavitation studies

Al-Razi's Conception of the Soul: Psychological Background to His Ethics

Page range: 245-26

VCW, Inc. Workplace Committee Overview

Includes mission statement and quality expectations. Report Submitted to the Commission on the Future of Worker-Management Relations.Report_VCW.pdf: 245 downloads, before Oct. 1, 2020

A brief report on an action learning group exploration of how older people adapt to change in later life

In collaboration with Age Concern UK, older people were invited to participate in action learning groups to explore how they adapt to change. Themes for discussion were initially identified using a nominal focus method. Discussions identified actual and desired methods of coping with changes in later life. A series of weekly meetings with three cohorts of urban, rural and sheltered accommodation participants with an average age of 81 years revealed that they were concerned with having to cope with and adapt to a wide range of experiences. These included the loss of sharing and reduced sociability, reduced mobility, bereavement, physical changes, having to move house order to cope with these experiences, participants engaged in a range of activities that centred on aspects of communication and social networking. Participants talked to each other socially and informally, exchanging information and advice. When able, they also participated in more structured but non-specific social events during which time they also had the opportunity more formal social networking and information exchange opportunities

Hepatitis B immunisation : a survey of surgeons and theatre nurses

Acute viral hepatitis remains a serious condition. Its long-term sequelae include cirrhosis and hepatocellular carcinoma. Health workers constitute a high-risk group for contracting hepatitis B. A group of clinicians associated with invasive procedures and nurses working in operating theatres were invited to answer a confidential questionnaire concerning hepatitis B immunisation and the use of protective measures. A self-administered confidential questionnaire was sent to 152 clinicians and 97 theatre nurses, of whom 82 and 74 respectively responded, giving an overall response rate of 63 %. Whilst 91% of respondents considered their speciality as being of high risk for hepatitis B only 63% of them were fully immunised and of these only 51% had had their immunity tested. Out of those who checked their antibody status 19% did so following a needle stick injury. 60% of our respondents had had a needle stick injury over the past year. Even so barrier precaution techniques were used infrequently with only 17% always or at least frequently using double gloving and 10% wearing a visor during operations. Some respondents also commented on the poor availability of resources such as impermeable gowns or blunt needles which are established precautions against contamination from hepatitis B.peer-reviewe

Biologically Active Compounds. II. The Synthesis of β-CarboxY-γ-butyrolactone Derivatives

Amide derivatives of γ-substituted paraconic and aconic　acids have been　synthesized. Ultraviolet spectra of the aconic acid derivatives showed characteristic　fine structure in the region of 245 to 280 mμ

Economic Dynamics, Contribution to the Encyclopedia of Nonlinear Science, Alwyn Scott (ed.), Routledge, 2004.

Contribution to the Encyclopedia of Nonlinear Science, Alwyn Scott (ed.), Routledge, 2005, pp.245-248.