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PubMed2005

Radioactivity in trinitite six decades later.

The first nuclear explosion test, named the Trinity test, was conducted on July 16, 1945 near Alamogordo, New Mexico. In the tremendous heat of the explosion, the radioactive debris fused with the local soil into a glassy material named Trinitite. Selected Trinitite samples from ground zero (GZ) of the test site were investigated in detail for radioactivity. The techniques used included alpha spectrometry, high-efficiency gamma-ray spectrometry, and low-background beta counting, following the radiochemistry for selected radionuclides. Specific activities were determined for fission products (90Sr, 137Cs), activation products (60Co, 133Ba, 152Eu, 154Eu, 238Pu, 241Pu), and the remnants of the nuclear fuel (239Pu, 240Pu). Additionally, specific activities of three natural radionuclides (40K, 232Th, 238U) and their progeny were measured. The determined specific activities of radionuclides and their relationships are interpreted in the context of the fission process, chemical behavior of the elements, as well as the nuclear explosion phenomenology.

New Mexico↗
PubMed2002

The monthly variation in acute anterior uveitis in a community-based ophthalmology practice.

BACKGROUND: A significant increase in the number of episodes of acute anterior uveitis was found in December for two consecutive years at a community-based ophthalmology practice. PURPOSE: To evaluate the monthly variation in episodes of acute anterior uveitis (AAU). METHODS: The charts of all patients with AAU in a practice within a community-based multispecialty ophthalmology group in Albuquerque, New Mexico, were reviewed. Seventy-seven patients with acute, self limited, nontraumatic, unilateral, nongranulomatous anterior uveitis over a two-year period were identified. RESULTS: Ninety-four episodes of AAU occurred in 77 patients (42 men, 35 women). The median number of episodes of AAU was three episodes per month (range: 0-14 episodes/month). An increased number of episodes was found in December of both years (11 in December 1996 [p < 0.01] and 14 in December 1997 [p < 0.003]). Smaller clusters of AAU were seen in other months, but did not reach statistical significance. CONCLUSIONS: The presence of a seasonal variation in the number of episodes of AAU suggests that environmental factors are important. A search for such factors that increase the risk of AAU during selected periods may be useful for a better understanding of disease pathogenesis.

Acute Disease↗
PubMedDate not supplied

Effectiveness of postpartum education received by certified nurse-midwives' clients at a university hospital.

This pilot study's objective was to determine the effectiveness of postpartum education received by midwifery clients at the University of New Mexico Hospital. The authors of the study randomized 100 women following delivery to two groups. Group one, n = 55, received written postpartum instructions only. Group two, n = 45, received oral instructions by the certified nurse-midwife in addition to the written instructions. Both groups answered a written questionnaire after the teaching. Analyses were carried out on 100 posttest scores. Mean test scores for group one was 17.9 out of a possible score of 20. Mean score for group two was 18.3. No significant difference was detected between these two mean scores. A 95% confidence interval for the difference between mean scores was -1.9 to 1.1 (P > .05). Reliability of instrument was established via the Kuder-Richardson formula 21. This conservative estimate of internal consistency yielded r = .50. The authors found that oral instructions by the certified nurse-midwife did not significantly increase the knowledge of primiparas as evidenced by posttest results. However, results must be interpreted cautiously for three reasons: low reliability of the instrument, the small difference between groups, and the sample size. The need to determine how best to approach postpartum education is imperative in this era of early hospital discharge. A certified nurse-midwife's time may be better spent focusing on individual concerns rather than on a set teaching agenda. Alternative opportunities such as postpartum home visits need to be explored as a means of providing support and guidance to new mothers.

Female↗
PubMedDate not supplied

Management of diabetes mellitus in the Lovelace Health Systems' EPISODES OF CARE program.

OBJECTIVE: To design and implement the Lovelace Diabetes EPISODES OF CARE program in a managed care setting. This program is intended to address the complex needs of patients with type 2 diabetes mellitus by using specific physician-provider and patient interventions. DESIGN: Observational study. SETTING: Lovelace Health Systems, the second-largest and most fully integrated health care delivery system in New Mexico. The main facility is located in Albuquerque. PARTICIPANTS: Lovelace Health Plan members with type 2 diabetes. INTERVENTIONS: Physician-provider interventions included practice guidelines medical profile screens, and provider support reports. Patients interventions included diabetes education; improved access to care, with focused diabetes clinic visits and "Diabetes Days"; and reminder systems. MAIN OUTCOME MEASURES: Glycohemoglobin values, dilated eye examination rates, and access to education. RESULTS: Significant lowering of glycohemoglobin values, dilated eye examination rates exceeding benchmark measures, and increases in educational access rates have occurred since the Lovelace Diabetes EPISODES OF CARE program was implemented. CONCLUSIONS: An integrated health care delivery system with a comprehensive, diabetes disease management program can substantially improve outcomes.

Delivery of Health Care, Integrated↗
PubMed1991

Clinical, clinicopathologic, and pathologic features of plague in cats: 119 cases (1977-1988).

The clinical, clinicopathologic, and pathologic features of 119 cases of plague in cats from 1977 to 1988 in New Mexico were reviewed. Fifty-three percent were bubonic, 10% were pneumonic, 8% were septicemic, and 29% with neither buboes nor pneumonia were unclassified (but presumed septicemic). Three quarters of the lymphadenopathy was submandibular, and almost half of this was bilateral. One third of all cats had the triad of lethargy, anorexia, and fever in addition to buboes; one quarter had this triad plus abscesses. The overall mortality rate was 33%, with the greatest risk of death in pneumonic cases. For confirmatory diagnosis with a single laboratory test, fluorescent antibody was most frequently used (39% of cases). Cultures and passive hemagluttination titers were also used for confirmation. Gross and histologic findings depended on the type of plague, with Yersinia pestis organisms visualized in buboes of cats with bubonic plague and in the alveolar spaces and respiratory tubules of cats with pneumonic plague.

Animals↗
PubMed2004

Influence of ethnicity and language concordance on physician-patient agreement about recommended changes in patient health behavior.

The purpose of this study is to examine the association of ethnicity and language concordance with physician-patient agreement about physicians' recommendations for patient health behavior in the following areas: diet, exercise, medication, smoking, stress, and weight. Twenty-seven resident physicians at the University of New Mexico's internal medicine and family practice clinics and 427 of their patients participated. Random effects models were used to estimate the influence of ethnicity and language concordance on whether patients and physicians agreed about specific recommended changes in patient behavior. Ethnicity concordance was not significantly associated with physician-patient agreement. Language concordance positively influenced the likelihood of agreement about exercise but negatively influenced agreement about medications. The lowest percentage of agreement occurred in the area of medication regimens (60%). The results from this study indicate that language is an important barrier to physician-patient agreement, while ethnicity concordance has no effect. However, the influence of whether the physician and patient speak the same language on agreement is unclear and warrants further research.

Adolescent↗
PubMed2005

Detection of Rickettsia felis in a New World flea species, Anomiopsyllus nudata (Siphonaptera: Ctenophthalmidae).

The flea and rodent samples studied in this project were collected from field study sites in New Mexico from winter 1998 to spring 2001. During this period, 155 small rodents (14 different species) were live-trapped and combed for the presence of fleas. A total of 253 fleas were collected, comprising 21 species. Two of the 253 fleas collected were polymerase chain reaction (PCR) positive for the Rickettsia 17-kDa protein gene. These two fleas were both Anomiopsyllus nudata Baker, each collected from an individual Neotoma albigula Hartley, on two occasions. Individual fleas positive for the Rickettsia 17-kDa protein gene were then tested with primers targeting the rickettsial genes for citrate synthase (gltA) and two major outer membrane proteins (ompA and ompB). The nucleotide sequences of the PCR products of these two fleas were identical to each other and were 100% (394/394), 100% (1150/1150), 99.8% (469/470), and 99.3% (818/824) similar to the corresponding sequences of the 17-kDa, gltA, ompA, and ompB genes of Rickettsia felis, respectively. Flea homogenates of individual PCR-positive fleas were inoculated into shell vials seeded with Vero cells, and the Gimenez stain technique was used to demonstrate the presence of Rickettsia-like organisms in detached cells found in aspirated medium 19 d after inoculation. These cells were harvested and tested by PCR, targeting portions of the 17-kDa and gltA genes, resulting in products 100% identical to R. felis. This work comprises the first report of R. felis detection in a flea species (A. nudata) endemic to the New World.

Animals↗
PubMed1997

A modification of the injury severity score that both improves accuracy and simplifies scoring.

OBJECTIVES: The Injury Severity Score (ISS) has served as the standard summary measure of anatomic injury for more than 20 years. Nevertheless, the ISS has an idiosyncrasy that both impairs its predictive power and complicates its calculation. We present here a simple modification of the ISS called the New Injury Severity Score (NISS), which significantly outperforms the venerable but dated ISS as a predictor of mortality. DESIGN: Retrospective calculation of NISS and comparison of NISS with prospectively calculated ISS. MATERIALS AND METHODS: The NISS is defined as the sum of the squares of the Abbreviated Injury Scale scores of each of a patient's three most severe Abbreviated Injury Scale injuries regardless of the body region in which they occur. NISS values were calculated for every patient in two large independent data sets: 3,136 patients treated during a 4-year period at the American College of Surgeons' Level I trauma center in Albuquerque, New Mexico, and 3,449 patients treated during a 4-year period at the American College of Surgeons' Level I trauma center at the Emanuel Hospital in Portland, Oregon. The power of NISS to predict mortality was then compared with previously calculated ISS values for the same patients in each of the two data sets. MEASUREMENTS AND MAIN RESULTS: We find that NISS is not only simple to calculate but more predictive of survival as well (Albuquerque: receiver operating characteristic (ROC) ISS = 0.869, ROC NISS = 0.896, p < 0.001; Portland: ROC ISS = 0.896, ROC NISS = 0.907,p < 0.004). Moreover, NISS provides a better fit throughout its entire range of prediction (Hosmer Lemeshow statistic for Albuquerque ISS = 29.12, NISS = 8.88; Hosmer Lemeshow statistic for Portland ISS = 83.48, NISS = 19.86). CONCLUSION: NISS should replace ISS as the standard summary measure of human trauma.

Abbreviated Injury Scale↗
PubMed2006

Study on the relationship between backpack use and back and neck pain among adolescents.

A descriptive correlation study was conducted in Hobbs, New Mexico, USA, to find the relationship between backpack use and back and neck pain among adolescent boys and girls. A higher percentage of girls than boys rated their pain as being moderate to extremely strong. The correlation between pain and backpack weight per body mass index among girls was positive and significant, but negative and non-significant among boys. The correlation between pain and backpack weight was positive and non-significant among both boys and girls. The correlation between pain and each of the variables of backpack weight per body weight, backpack weight per height, and backpack weight per body surface area was negative and non-significant among boys, but positive and non-significant among girls. Gender-based research studies with additional variables and safe backpack use education in schools are recommended.

Adolescent↗
PubMed2003

Rural-urban differences in ductal carcinoma in situ as a proxy for mammography use over time.

CONTEXT: With emphasis on increasing use of mammography, the rate of ductal carcinoma in situ (DCIS) of the breast has increased dramatically in the United States starting in the early 1980s. It is unclear if rural and urban women have experienced similar increases. PURPOSE: To describe differences in incidence of DCIS between rural and urban women 50 to 69 years of age over time. This may be a proxy indicator of mammography use for the early detection of breast cancer. METHODS: The study population consisted of women 50 to 69 years of age who were diagnosed with DCIS during 1973-1997 and resided in Iowa, Utah, or New Mexico. Data from the Surveillance, Epidemiology, and End Results (SEER) programs in these states were used in the analysis. Location of the woman's residence was classified into urban when she lived in a county considered a Metropolitan Statistical Area, while she was considered rural if she resided elsewhere at the time of her diagnosis. FINDINGS: Increases in rates were different between rural (annual percentage change [APC]: 15.1) and urban women (APC: 34.4). During the 1990s among urban women, the rate of DCIS was still increasing (APC: 3.8), while there was no increase among rural women (APC: 0.2). Differences between rural and urban women within these 3 states were also identified. CONCLUSIONS: The data suggest differences in utilization of mammography between both populations; the increase was lower and started later for rural women. Possible reasons for such differences over time are discussed.

Aged↗
PubMed1999

Characterization of two subsurface H2-utilizing bacteria, Desulfomicrobium hypogeium sp. nov. and Acetobacterium psammolithicum sp. nov., and their ecological roles.

We examined the relative roles of acetogenic and sulfate-reducing bacteria in H2 consumption in a previously characterized subsurface sandstone ecosystem. Enrichment cultures originally inoculated with ground sandstone material obtained from a Cretaceous formation in central New Mexico were grown with hydrogen in a mineral medium supplemented with 0.02% yeast extract. Sulfate reduction and acetogenesis occurred in these cultures, and the two most abundant organisms carrying out the reactions were isolated. Based on 16S rRNA analysis data and on substrate utilization patterns, these organisms were named Desulfomicrobium hypogeium sp. nov. and Acetobacterium psammolithicum sp. nov. The steady-state H2 concentrations measured in sandstone-sediment slurries (threshold concentration, 5 nM), in pure cultures of sulfate reducers (threshold concentration, 2 nM), and in pure cultures of acetogens (threshold concentrations 195 to 414 nM) suggest that sulfate reduction is the dominant terminal electron-accepting process in the ecosystem examined. In an experiment in which direct competition for H2 between D. hypogeium and A. psammolithicum was examined, sulfate reduction was the dominant process.

DNA, Bacterial↗
PubMed1999

Neuropsychological performance of Hispanic and non-Hispanic older adults: an epidemiologic survey.

Performance on a brief battery of neuropsychological tests was compared for 797 Hispanic and non-Hispanic white older adults (65-97 years) participating in a community-based epidemiological survey of Bernalillo County, New Mexico. Tests included measures of memory (Fuld Object Memory Evaluation), attention (Digit Span), verbal fluency (category naming), visuoconstruction (clock drawing), and psychomotor speed and cognitive flexibility (Color Trails). Statistically significant ethnic group differences were observed on all tests in analyses that also considered effects of age, education, gender, depressive symptoms, and a global measure of medical illness. Effect sizes were small for all measures except Digit Span and Color Trails. In dementia screening or other clinical cognitive assessment, separate ethnic group norms may be useful in interpreting results for these measures. Preliminary normative tables are provided for Hispanic older adults at two levels of age (65-74 years and 75-97 years) and four levels of education (0-6 years, 7-9 years, 10-12 years, and > 12 years).

Age Distribution↗
PubMedDate not supplied

Keys to the puzzle: recognizing strengths in a rural community.

The elderly population in rural communities is growing. Rural populations generally experience excessive deficiencies in health care access, social services, and other goods and services needed for healthy living. An ethnographic study of multicultural elderly participants from a rural county in New Mexico was completed to explore the participants' definitions of health, health care perceptions, and health care needs. Several key issues regarding health care were identified, including the escalating cost of prescriptions, limited access to primary health care and specialty care, and social isolation and loneliness. However, despite these limitations, existing strengths and assets were also identified: elders' knowledge about sustaining health in austere conditions and caring for the sick using simple measures; an existing group of dedicated professional nurses applying their own and others' knowledge to the challenge of health care; and a preexisting community-based action group working to decrease fragmentation of services, streamline delivery of services, and work with legislators on funding priorities. Building on these strengths can provide the keys to the puzzle of transforming the current health care environment and improving inadequate health care for these elderly rural community members.

Aged↗
PubMed2005

Ideologies of aid, practices of power: lessons for Medicaid managed care.

The articles in this special issue teach valuable lessons based on what happened in New Mexico with the shift to Medicaid managed care. By reframing these lessons in broader historical and cultural terms with reference to aid programs, we have the opportunity to learn a great deal more about the relationship between poverty, public policy, and ideology. Medicaid as a state and federal aid program in the United States and economic development programs as foreign aid provide useful analogies specifically because they exhibit a variety of parallel patterns. The increasing concatenation of corporate interests with state and nongovernmental interests in aid programs is ultimately producing a less centralized system of power and responsibility. This process of decentralization, however, is not undermining the sources of power behind aid efforts, although it does make the connections between intent, planning, and outcome less direct. Ultimately, the devolution of power produces many unintended consequences for aid policy. But it also reinforces the perspective that aid and the need for it are nonpolitical issues.

Altruism↗
PubMed1987

Prevalence of benign, atypical, and malignant breast lesions in populations at different risk for breast cancer. A forensic autopsy study.

A forensic autopsy series of 519 women more than 14 years old was studied for prevalence of benign, atypical, and occult malignant breast lesions. The women included Anglos (non-Hispanic whites), Hispanics, and American Indians from New Mexico and Eastern Arizona. These three ethnic/racial groups are at markedly different risk for the development of breast cancer (Anglo 89 of 100,000 women per year, Hispanic 45.5, and American Indian 24.9. There were striking ethnic/racial and age-related differences in both the prevalence and magnitude of all forms of nonproliferative and proliferative fibrocystic disease. The various subsets of fibrocystic disease were highly associated with each other. Such lesions as apocrine metaplasia, sclerosing adenosis, and lobular microcalcification showed as much difference according to ethnic/racial background and age as the more common cystic change and duct epithelial hyperplasia. Atypical lobular and ductal hyperplasia, carcinoma in situ, and occult invasive carcinoma were uncommon and also occurred in ethnic/racial groups in a pattern that parallels the cancer risk in those groups.

Adenofibroma↗
PubMed1997

Environmental hazard of selenium in the Animals La Plata water development project.

A hazard assessment of selenium was conducted for the Animas La Plata Project, a multiple-use water development proposed for Colorado and New Mexico by the United States Bureau of Reclamation. A published protocol for aquatic hazard assessment of selenium was applied to environmental monitoring data to assess current threats to biota in the water supply rivers (Animas, La Plata, and Mancos Rivers). Hazard evaluation were also made for two proposed reservoirs (Ridges Basin and Southern Ute Reservoirs) based on estimated concentrations of selenium. The assessment protocol indicated moderate hazard in the Animas and La Plata Rivers, and high hazard in the Mancos River and both of the proposed reservoirs. These ratings indicate that the risk of selenium poisoning in fish and aquatic birds is substantial. Moreover, the geology and climate of this site make it prone to irrigation-induced selenium contamination of water and biota. The water supplies already contain dangerously high concentrations of selenium that may increase further due to agricultural irrigation drainage. The stage is set for significant environmental problems unless a development scenario can be devised that will effectively reduce ecological risks.

Animals↗
PubMed1988

Prediction of licensing examination scores in physical therapy graduates.

The primary purpose of this study was to determine which information available on applicants to the University of New Mexico physical therapy program would best predict performance on the licensing examination. The secondary purpose was to provide documentation of a procedure for selection that could be useful to other programs in other settings. American College Testing (ACT) scores, prerequisite and nonprerequisite grade point averages (GPAs), and interview and recommendation scores were used to predict licensing examination scores for the classes graduating from 1980 to 1984. Six of the regression analyses were significant, but three had similar correlations that were much higher than the rest. The variables in those three regression analyses were ACT composite score and both GPAs; ACT composite score, both GPAs, and interview score; and ACT composite score, prerequisite GPA, and interview score. The results of this study suggest that selection committees use standardized ability tests as admission criteria because the ACT scores accounted for the most variance in licensing examination scores. Other professional schools might also benefit by applying the procedures used in this study to their own data to develop prediction equations.

Educational Measurement↗
PubMed1997

Pleural fluid characteristics in hantavirus pulmonary syndrome.

Hantavirus pulmonary syndrome (HPS), is a rodent-borne, acute, often fulminant cardiorespiratory illness. Noncardiogenic pulmonary edema is prominent in HPS as is cardiac dysfunction. Pleural effusions are commonly noted in patients with HPS and have been thought to be exudative. This report describes the prevalence and characteristics of pleural effusions by an assessment of chest radiographs for the presence of pleural fluid and reviews all pleural fluid specimens obtained from patients with HPS. Of 23 patients treated at the University of New Mexico Hospital for HPS, 22 had evidence of pleural fluid while 4 had sampling of their pleural fluid. Two samples met criteria for an exudate by pleural fluid protein to serum protein ratio of more than 0.5; one was clearly a transudate and the other had inconsistent characteristics. The two exudative samples were obtained 7 days after admission, while the other 2 were obtained within 1 day of admission. Pleural fluid cultures were sterile, and the total of nucleated cells was less than 170/mm3, and predominately mononuclear. A hypothesis may be formulated that the pleural fluid in HPS is initially transudative, consistent with the observed cardiopulmonary dysfunction. However, following aggressive resuscitative efforts and as the acute illness resolves, fluid shifts occur as cardiac function normalizes; the pleural fluid may take on characteristics of an exudate.

Blood Glucose↗