DEVELOPING PATHWAYS TO SERVING TOGETHER: DUAL MILITARY COUPLES' LIFE COURSE AND DECISION-MAKING

The increase in the number and types of military families since the advent of the All-Volunteer Force in 1973 has increased the impact of the work-family interface for the military. For dual career couples, where both the husband and wife are in the military, both are subject to deployment for extended periods of time, high geographic mobility, probability of a foreign residence, the risk of injury or death, and they must manage two specialized and structured career paths (Segal 1986). The purpose of this study is to analyze the work careers and family life course of dual military couples and their decision-making processes, using a life course perspective. Using a grounded theory methodology, I interviewed and analyzed the transcripts of 23 dual military officer couples in the U.S. Navy. Results show that work and family decisions are influenced by the organizational constraints as well as institutional and cultural norms. The rhythm of life in the Navy is shaped by cyclic changing of job assignments and locations, rotation of sea and shore duty assignments, warfare specialty career paths designed for promotion, and the cultural fast track. These couples' experiences in trying to live together with collocated job assignments shape their long-term decision-making for maintaining a career in the Navy. Their experiences show that the organization's demands and far-reaching control are infused into every aspect of their lives. Couples' discourse is focused on their human agency in an effort to maintain control of their life course while meeting the organizational demands of rigid and structured career paths, increased number of sea duty tours and deployments, and perceived low priority of collocation in the assignment process. Dual career couples in this organization use a long-term perspective of the life course to cope with their current situation with the knowledge that their life satisfaction will improve in the near future as they progress in their career. These couples adapt by employing work-family prioritization strategies for achieving their personal and professional goals. Learning how to successfully combine and separate roles through these prioritization strategies reduces stress and increases life satisfaction

Final report on Task 12: Southern Great Basin seismic network operations

The Nevada Seismological Laboratory began seismic monitoring operations under the DOE-UCCSN Cooperative Agreement on 11/01/1999. This final report summarizes our activities and studies made in the four years up to 09/30/2003. Previously, NSL operated under the M&O for the Yucca Mountain Project from October 1995 through September 1999 and under the U. S. Geological Survey from October 1992 through September 1995. For purposes of this report, earthquakes occurring in the years FY1998 and FY1999 were analyzed in the first two years of the NSL’s involvement with the Cooperative Agreement, and they will be treated here, along with the data in the years FY2000, FY2001, and FY2002. During the four years of funding under the Cooperative Agreement, FY2000-FY2003, NSL has maintained a seismic network in the vicinity of Yucca Mountain; installed a strong-motion capability at 10 sites; installed a borehole array of strong-motion instruments near the ESF north portal; and has conducted various studies on seismic-wave attenuation, earthquake interactions, the character of the stress field, and seismotectonics, all within the southern Great Basin and mostly focused on the immediate vicinity of Yucca Mountain. This report will summarize these operational efforts and associated investigative studies. This report references many of the previous reports submitted under the Cooperative Agreement and does not present any new data itself

Using Continuous Response Assessment to Evaluate the Effectiveness of Extension Education Products

The case study addressed in this article illustrates the value of continuous response measurement (CRM) for testing and refining messages produced for distribution to Extension audiences. We used CRM to evaluate the responses of Extension educators and Natural Resources Conservation Service technical service providers to a video describing greenhouse gas mitigation techniques. By using this assessment method, message producers can identify elements in a video that elicit strong positive or negative responses and then refine communication activities accordingly. Our study highlights the potential of CRM for informing how Extension education products and materials may be preevaluated to ensure more widespread acceptance and use of final versions by intended audiences

Distribution and prevalence of malaria parasites among long-tailed macaques (Macaca fascicularis) in regional populations across Southeast Asia.

BackgroundPlasmodium knowlesi and Plasmodium cynomolgi are two malaria parasites naturally transmissible between humans and wild macaque through mosquito vectors, while Plasmodium inui can be experimentally transmitted from macaques to humans. One of their major natural hosts, the long-tailed macaque (Macaca fascicularis), is host to two other species of Plasmodium (Plasmodium fieldi and Plasmodium coatneyi) and is widely distributed in Southeast Asia. This study aims to determine the distribution of wild macaques infected with malarial parasites by examining samples derived from seven populations in five countries across Southeast Asia.MethodsPlasmodium knowlesi, P. cynomolgi, P. coatneyi, P. inui and P. fieldi, were detected using nested PCR assays in DNA samples from 276 wild-caught long-tailed macaques. These samples had been derived from macaques captured at seven locations, two each in the Philippines (n = 68) and Indonesia (n = 70), and one each in Cambodia (n = 54), Singapore (n = 40) and Laos (n = 44). The results were compared with previous studies of malaria parasites in long-tailed macaques from other locations in Southeast Asia. Fisher exact test and Chi square test were used to examine the geographic bias of the distribution of Plasmodium species in the macaque populations.ResultsOut of 276 samples tested, 177 were Plasmodium-positive, with P. cynomolgi being the most common and widely distributed among all long-tailed macaque populations (53.3 %) and occurring in all populations examined, followed by P. coatneyi (20.4 %), P. inui (12.3 %), P. fieldi (3.4 %) and P. knowlesi (0.4 %). One P. knowlesi infection was detected in a macaque from Laos, representing the first documented case of P. knowlesi in wildlife in Laos. Chi square test showed three of the five parasites (P. knowlesi, P. coatneyi, P. cynomolgi) with significant bias in prevalence towards macaques from Malaysian Borneo, Cambodia, and Southern Sumatra, respectively.ConclusionsThe prevalence of malaria parasites, including those that are transmissible to humans, varied among all sampled regional populations of long-tailed macaques in Southeast Asia. The new discovery of P. knowlesi infection in Laos, and the high prevalence of P. cynomolgi infections in wild macaques in general, indicate the strong need of public advocacy in related countries

Hyperinfectivity: A Critical Element in the Ability of V. cholerae to Cause Epidemics?

BACKGROUND: Cholera is an ancient disease that continues to cause epidemic and pandemic disease despite ongoing efforts to limit its spread. Mathematical models provide one means of assessing the utility of various proposed interventions. However, cholera models that have been developed to date have had limitations, suggesting that there are basic elements of cholera transmission that we still do not understand. METHODS AND FINDINGS: Recent laboratory findings suggest that passage of Vibrio cholerae O1 Inaba El Tor through the gastrointestinal tract results in a short-lived, hyperinfectious state of the organism that decays in a matter of hours into a state of lower infectiousness. Incorporation of this hyperinfectious state into our disease model provides a much better fit with the observed epidemic pattern of cholera. These findings help to substantiate the clinical relevance of laboratory observations regarding the hyperinfectious state, and underscore the critical importance of human-to-human versus environment-to-human transmission in the generation of epidemic and pandemic disease. CONCLUSIONS: To have maximal impact on limiting epidemic spread of cholera, interventions should be targeted toward minimizing risk of transmission of the short-lived, hyperinfectious form of toxigenic Vibrio cholerae. The possibility of comparable hyperinfectious states in other major epidemic diseases also needs to be evaluated and, as appropriate, incorporated into models of disease prevention

Identifying rhesus macaque gene orthologs using heterospecific human CNV probes

AbstractWe used the Affymetrix® Genome-Wide Human SNP Array 6.0 to identify heterospecific markers and compare copy number and structural genomic variation between humans and rhesus macaques. Over 200,000 human copy number variation (CNV) probes were mapped to a Chinese and an Indian rhesus macaque sample. Observed genomic rearrangements and synteny were in agreement with the results of a previously published genomic comparison between humans and rhesus macaques. Comparisons between each of the two rhesus macaques and humans yielded 206 regions with copy numbers that differed by at least two fold in the Indian rhesus macaque and human, 32 in the Chinese rhesus macaque and human, and 147 in both rhesus macaques. The detailed genomic map and preliminary CNV data are useful for better understanding genetic variation in rhesus macaques, identifying derived changes in human CNVs that may have evolved by selection, and determining the suitability of rhesus macaques as human models for particular biomedical studies

Nutrient and biogenic particulate distributions, primary productivity and nitrogen uptake in the Weddell-Scotia Sea marginal ice zone during winter

During austral winter of 1988, we determined the distributions of inorganic nutrients (nitrate, silicic acid, phosphate, nitrite and ammonium) and particulate materials (chlorophyll, biogenic silica, particulate organic carbon and particulate organic nitrogen), as well as primary productivity and rates of nutrient (NO3− and NH4+) uptake in the upper 150 m of the marginal ice zone of the Weddell-Scotia Sea. Nutrient concentrations were high and particulate matter levels were low throughout the study area, but occasionally nutrient minima and particulate maxima occurred near the ice edge associated with warm-core eddies. Chlorophyll concentrations and primary productivity averaged 0.12 μg l−1 and 32 mg C m−2 d−1, respectively. Surface growth rates calculated from carbon uptake and total particulate organic carbon were very low (ca. 0.03 doublings d−1), but living phytoplankton only comprised about 10% of the POC in the surface layer. Thus, mean phytoplankton growth rates appear to have been between 0.1 and 0.2 doublings d−1. Although nitrate was about 40 times as abundant as ammonium, ammonium was consistently the preferred substrate of the plankton assemblages, accounting for over half of the nitrogen taken up. Paired samples from the same depth and vertically integrated f-ratios averaged 0.43. Both ammonium and nitrate were removed at rates that individually exceeded the apparent nitrogen demand of the phytoplankton, implying significant heterotrophic uptake of inorganic nitrogen

NICMOS Imaging of the HR 4796A Circumstellar Disk

We report the first near infrared (NIR) imaging of a circumstellar annular disk around the young (~8 Myr), Vega-like star, HR 4796A. NICMOS coronagraph observations at 1.1 and 1.6 microns reveal a ring-like symmetrical structure peaking in reflected intensity 1.05 arcsec +/- 0.02 arcsec (~ 70 AU) from the central A0V star. The ring geometry, with an inclination of 73.1 deg +/- 1.2 deg and a major axis PA of 26.8 deg +/- 0.6 deg, is in good agreement with recent 12.5 and 20.8 micron observations of a truncated disk (Koerner, et al. 1998). The ring is resolved with a characteristic width of less than 0.26 arcsec (17 AU) and appears abruptly truncated at both the inner and outer edges. The region of the disk-plane inward of ~60 AU appears to be relatively free of scattering material. The integrated flux density of the part of the disk that is visible (greater than 0.65 arcsec from the star) is found to be 7.5 +/- 0.5 mJy and 7.4 +/- 1.2 mJy at 1.1 and 1.6 microns, respectively. Correcting for the unseen area of the ring yields total flux densities of 12.8 +/- 1.0 mJy and 12.5 +/- 2.0 mJy, respectively (Vega magnitudes = 12.92 /+- 0.08 and 12.35 +/-0.18). The NIR luminosity ratio is evaluated from these results and ground-based photometry of the star. At these wavelengths Ldisk(lambda)/L*(lambda) = 1.4 +/- 0.2E-3 and 2.4 +/- 0.5E-3, giving reasonable agreement between the stellar flux scattered in the NIR and that which is absorbed in the visible and re-radiated in the thermal infrared. The somewhat red reflectance of the disk at these wavelengths implies mean particle sizes in excess of several microns, larger than typical interstellar grains. The confinement of material to a relatively narrow annular zone implies dynamical constraints on the disk particles by one or more as yet unseen bodies.Comment: 14 pages, 1 figure for associated gif file see: http://nicmosis.as.arizona.edu:8000/AAS99/FIGURE1_HR4796A_ApJL.gif . Accepted 13 January 1999, Astrophyical Journal Letter

Paramedic students working in snow resort medical clinics: a non-traditional interprofessional clinical placement model

This study investigates the experiences of undergraduate paramedic students completing interprofessional clinical placements in snow sport injury clinics. Qualitative methods were used to investigate the experiences of participants (n=6) undertaking non-traditional ambulance clinical placements as part of a multidisciplinary healthcare team. Ethical approval was obtained through Queensland University of Technology, Brisbane Australia. Data were collected via individual face-to-face interviews and analysed using holistic and focused coding. The analysed results indicated the presence of three main categories, namely Pre-Placement, Intra-Placement and Post-Placement phases. As it was a new placement, student capabilities were not initially known by clinic staff. Nevertheless the workplace culture was inclusive and supportive, and paramedic skills were applicable in the clinic environment. Despite the placement costs being excessive, participants viewed it as an investment in their future careers. Benefits of the placement included perceived improvement in maturity levels, the acquisition of professional networks, an understanding of interprofessional practice and an exposure to clinical skills not normally practiced during traditional ambulance placements. The interprofessional clinical placement appears to be a valid alternative to traditional ambulance placements. However, using this model to replace mainstream placements is problematic due to the costs involved, the limited number of spots available and the seasonal occurrence of snow sports