2,189 research outputs found
Evaluation of county public health services to Indians.
In light of increases in Indian Health Service (IHS) staffing and other health services, the Northwest Portland Area Indian Health Board initiated a reassessment of the impact, necessity, and sufficiency of contracting with county Health departments. This study followed five main objectives: 1) to examine carefully the services to Indians being provided by each county health department with whom IHS currently has a valid contract; 2) to describe what may be the strengths and weaknesses in contracting with county health departments; 3) to provide cost-effective information upon which the Portland Area Indian Health Board could jointly base any decisions regarding continuance or modification of existing county health department services to Indians; 4) to provide an updated report to the Northwest Portland Area Indian Health Board, the Portland Area Indian Health Service and the Tribes concerned, regarding the current status of county services to Indians; and 6) to provide opportunity for county health department personnel, Indian health field staff, and Indian consumers to exchange views regarding central health issues. Another important objective for the project was to obtain Indian consumer response to county services. Data analysis and field evaluation meetings provided the basis for this study. Baseline data were secured from statistical and narrative contract reports from local health departments to IHS, including: 1) contract files; 2) Community Health Activities Report by county; 3) Environmental Health Daily Activity Reports by county; 4) responses to a letter to county health officers requesting lists of services provided to all residents; 5) services provided to Indians; 6) services directly attributable to IHS contracts; and 7) program plans and budgets as available. Field evaluation meetings were held with providers and consumers in the 14 health districts on planning, communications, services, program, and budget. The evaluation was based on the following criteria: 1) Health Board and Service Unit recommendations concerning the contract; 2) acceptance of county Public health services by the Indian consumers; 3) value of services based on IHS staffing equivalents; and 4) cost of services as reported by county health officers. The approach used in the report was quantitative as well as qualitative and has implications for developmental policy analysis. Seven county health department contracts in Washington, and one in north-central Idaho were found to be cost-effective when compared to the expense of providing IHS employees for the same number of hours of service. Six of the contracts in Washington were found to cost more than would direct services assuming IHS had the positions and the personnel to fill them. An arrangement was made for individualizing county contracts based on Service Unit priorities and the capabilities of the particular health department. However, the study found that Area and Service Unit level administration of the contracts would require more time and money than is currently being expended. In every case, the Indian population reported was larger than that noted on the contract. Since the contract award amount is currently based on the Indian population, to update the census figures would result in an increased award in most cases. The list of services to be provided, according to the contract, rarely describes the programs currently being offered by counties. Moreover, different program emphases are requested according to Service Unit program plans. A further study of alternatives for providing environmental health services is recommended, pending the outcome of legal determinations about the status of Tribes under P.L. 280, and proposed Environmental Protection Agency regulations. It is recommended that meetings between county health departments and Tribal or Service Unit Indian health boards, continue to be a regular and important component of every program planning and contract evaluation session
Cavity-mediated coherent coupling of magnetic moments
We demonstrate the long range strong coupling of magnetostatic modes in spatially separated ferromagnets mediated by a microwave frequency cavity. Two spheres of yttrium iron garnet are embedded in the cavity and their magnetostatic modes probed using a dispersive measurement technique. We find they are strongly coupled to each other even when detuned from the cavity modes, and investigate the dependence of the magnet-magnet coupling on the cavity detuning. Dark states of the coupled magnetostatic modes of the system are observed, and ascribed to mismatches between the symmetries of the modes and the drive field.We would like to acknowledge support from Hitachi Cambridge Laboratory, EPSRC Grant No. EP/K027018/1 and ERC Grant No. 648613. A.J.F. is supported by a Hitachi Research Fellowship. A.C.D. is supported by the ARC via the Centre of Excellence in Engineered Quantum Systems (EQuS), Project No. CE110001013.This is the author accepted manuscript. The final version is available from the American Physical Society via http://dx.doi.org/10.1103/PhysRevA.93.02180
Women in senior post-graduate medicine career roles in the UK: a qualitative study
Objectives:This qualitative study sought to elicit the views, experiences, career journeys and aspirations of women in senior post-graduate medical education roles to identify steps needed to help support career progression.Design:In-depth semi-structured telephone interviews.Setting:UKParticipants:Purposive sample of 12 women in a variety of senior leadership roles in post-graduate medical education in the UK.Main outcome measures:Self reported motivating influences, factors that helped and hindered progress, key branch points, and key educational factors and social support impacting on participants' career in postgraduate medicine.Results:Respondents often reported that career journeys were serendipitous, rather than planned, formal or well structured. Senior women leaders reported having a high internal locus of control, with very high levels of commitment to the NHS. All reported significant levels of drive, although the majority indicated that they were not ambitious in the sense of a strong drive for money, prestige, recognition or power. They perceived that there was an under-representation of women in senior leadership positions and that high-quality female mentorship was particularly important in redressing this imbalance. Social support, such a spouse or other significant family member, was particularly valued as reaffirming and supporting women’s chosen career ambition. Factors that were considered to have hindered career progression included low self-confidence and self-efficacy, the so-called glass ceiling and perceived self-limiting cultural influences. Factors indirectly linked to gender such as part-time versus working full time were reportedly influential in being overlooked for senior leadership roles. Implications of these findings are discussed in the paper.Conclusion:Social support, mentorship and role modelling are all perceived as highly important in redressing perceived gender imbalances in careers in post-graduate medical education
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Nourishment is a modulating factor of the complications in pregnancy. Pregestational consumption of dietary fibre and some micronutrients may be related to the risk of developing gestational hyperglycemia, one of the most frequent metabolic disorders during pregnancy. However, evidence is still scant. The objective of this survey was to analyse the pregestational consumption of dietary fibre and some micronutrients and its relation to the development of hyperglycemia in pregnant women who went to the Hospital Materno Provincial Dr. RF Lucini and the Hospital Universitario de Maternidad y NeonatologÃa during 2021-2022.
An explanatory, observational and longitudinal survey was realized on a sample of 52 participants. A structured questionnaire was used to obtain sociodemographic and health information, and a food frequency questionnaire was used to know the average intake of dietary fibre and micronutrients in the pregestational diet. In order to diagnose hyperglycemia, it was taken into account the level of the fasting blood glucose and the oral glucose tolerance test (OGTT), according to the Federación Argentina de Sociedades de GinecologÃa y Obstetricia. Applying Fisher’s Exact Test (significance level 0.05) and using the software Stata V15, a descriptive analysis was realized about the relation between the consumption of dietary fibre and the development of hyperglycemia.
The survey revealed that 92.31% of the sample did not consume sufficient dietary fibre. The majority of women did not meet the requirements of vitamins A (75%), E (92.31%), B6 (80.77%), iron (92.31%) and calcium (84.62%). 15.38% developed hyperglycemia. The consumption of vitamin C was related to the development of hyperglycemia, since the majority of women presented a high level of consumption of vitamin C (p<0.05). There was no evidence about the relation between the consumption of dietary fibre and the remaining micronutrients that had been studied with the development of hyperglycemia during pregnancy.
A major amount of pregnant women does not meet the requirements of vitamins A, E, B6, iron and calcium. The pregestational consumption of those micronutrients and dietary fibre was not related to the development of hyperglycemia. It is necessary to evaluate the possible relationship between hyperglycemia and the intake of vitamin C.La alimentación resulta un factor modulador del riesgo de complicaciones en el embarazo. El consumo pregestacional de Fibra Dietética (FD) y algunos micronutrientes podrÃan estar asociados al riesgo de hiperglucemia gestacional, una de las alteraciones metabólicas más frecuentes del embarazo, no obstante, la evidencia es aún escasa. El objetivo de este estudio fue analizar el consumo pregestacional de FD y algunos micronutrientes, y su relación con la ocurrencia de hiperglucemia en mujeres gestantes que asistieron al Hospital Materno Provincial Dr. RF Lucini y al Hospital Universitario de Maternidad y NeonatologÃa durante 2021-2022.
Se desarrolló un estudio explicativo, observacional y longitudinal en una muestra de 52 participantes. Se aplicó un cuestionario estructurado para recabar información sociodemográfica y de salud, y un cuestionario de frecuencia alimentaria para conocer la ingesta promedio diaria de FD y micronutrientes de la dieta pregestacional. Para el diagnóstico de hiperglucemia se tuvieron en cuenta los valores de glucemia en ayunas como los de PTOG según la clasificación de FASGO. Se realizó un análisis descriptivo y se analizó la relación entre la ingesta de FD y micronutrientes y la ocurrencia de hiperglucemias aplicando test exacto de Fisher (nivel de significación 0,05), utilizando el software Stata V15.
Un 92,31% de la muestra obtuvo un consumo de FD insuficiente. La mayorÃa de las mujeres no cubrió los requerimientos de vitaminas A (75%), E (92,31%), B6 (80,77%), B9 (71,15%), hierro (92,31%) y calcio (84,62%). Un 15,38% desarrolló hiperglucemia. El consumo de vitamina C se asoció a la ocurrencia de hiperglucemia, observándose que la mayorÃa de las mujeres con hiperglucemia presentaban un alto consumo de la misma (p<0,05). No se evidenció relación entre el consumo de FD y los restantes micronutrientes estudiados, y la ocurrencia de hiperglucemia durante el embarazo.
Una proporción importante de las mujeres embarazadas no cubre los requerimientos de vitaminas A, E, B6, B9, hierro y calcio. El consumo pregestacional de estos micronutrientes y FD no se asoció a la ocurrencia de la hiperglucemia. Es necesario profundizar el estudio de la posible relación de la hiperglucemia y la ingesta de vitamina C.
A cautionary note regarding count models of alcohol consumption in randomized controlled trials
BACKGROUND: Alcohol consumption is commonly used as a primary outcome in randomized alcohol treatment studies. The distribution of alcohol consumption is highly skewed, particularly in subjects with alcohol dependence. METHODS: In this paper, we will consider the use of count models for outcomes in a randomized clinical trial setting. These include the Poisson, over-dispersed Poisson, negative binomial, zero-inflated Poisson and zero-inflated negative binomial. We compare the Type-I error rate of these methods in a series of simulation studies of a randomized clinical trial, and apply the methods to the ASAP (Addressing the Spectrum of Alcohol Problems) trial. RESULTS: Standard Poisson models provide a poor fit for alcohol consumption data from our motivating example, and did not preserve Type-I error rates for the randomized group comparison when the true distribution was over-dispersed Poisson. For the ASAP trial, where the distribution of alcohol consumption featured extensive over-dispersion, there was little indication of significant randomization group differences, except when the standard Poisson model was fit. CONCLUSION: As with any analysis, it is important to choose appropriate statistical models. In simulation studies and in the motivating example, the standard Poisson was not robust when fit to over-dispersed count data, and did not maintain the appropriate Type-I error rate. To appropriately model alcohol consumption, more flexible count models should be routinely employed
Six-dimensional (1,0) effective action of F-theory via M-theory on Calabi-Yau threefolds
The six-dimensional effective action of F-theory compactified on a singular
elliptically fibred Calabi-Yau threefold is determined by using an M-theory
lift. The low-energy data are derived by comparing a circle reduction of a
general six-dimensional (1,0) gauged supergravity theory with the effective
action of M-theory on the resolved Calabi-Yau threefold. The derivation
includes six-dimensional tensor multiplets for which the (anti-) self-duality
constraints are imposed on the level of the five-dimensional action. The vector
sector of the reduced theory is encoded by a non-standard potential due to the
Green-Schwarz term in six dimensions. This Green-Schwarz term also contains
higher curvature couplings which are considered to establish the full map
between anomaly coefficients and geometry. F-/M-theory duality is exploited by
moving to the five-dimensional Coulomb branch after circle reduction and
integrating out massive vector multiplets and matter hypermultiplets. The
associated fermions then generate additional Chern-Simons couplings at
one-loop. Further couplings involving the graviphoton are induced by quantum
corrections due to excited Kaluza-Klein modes. On the M-theory side integrating
out massive fields corresponds to resolving the singularities of the Calabi-Yau
threefold, and yields intriguing relations between six-dimensional anomalies
and classical topology.Comment: 55 pages, v2: typos corrected, discussion of loop corrections
improve
Impact of socioeconomic deprivation on rate and cause of death in severe mental illness
Background:
Socioeconomic status has important associations with disease-specific mortality in the general population. Although individuals with Severe Mental Illnesses (SMI) experience significant premature mortality, the relationship between socioeconomic status and mortality in this group remains under investigated.<p></p>
Aims:
To assess the impact of socioeconomic status on rate and cause of death in individuals with SMI (schizophrenia and bipolar disorder) relative to the local (Glasgow) and wider (Scottish) populations.<p></p>
Methods:
Cause and age of death during 2006-2010 inclusive for individuals with schizophrenia or bipolar disorder registered on the Glasgow Psychosis Clinical Information System (PsyCIS) were obtained by linkage to the Scottish General Register Office (GRO). Rate and cause of death by socioeconomic status, measured by Scottish Index of Multiple Deprivation (SIMD), were compared to the Glasgow and Scottish populations.<p></p>
Results:
Death rates were higher in people with SMI across all socioeconomic quintiles compared to the Glasgow and Scottish populations, and persisted when suicide was excluded. Differences were largest in the most deprived quintile (794.6 per 10,000 population vs. 274.7 and 252.4 for Glasgow and Scotland respectively). Cause of death varied by socioeconomic status. For those living in the most deprived quintile, higher drug-related deaths occurred in those with SMI compared to local Glasgow and wider Scottish population rates (12.3% vs. 5.9%, p = <0.001 and 5.1% p = 0.002 respectively). A lower proportion of deaths due to cancer in those with SMI living in the most deprived quintile were also observed, relative to the local Glasgow and wider Scottish populations (12.3% vs. 25.1% p = 0.013 and 26.3% p = <0.001). The proportion of suicides was significantly higher in those with SMI living in the more affluent quintiles relative to Glasgow and Scotland (54.6% vs. 5.8%, p = <0.001 and 5.5%, p = <0.001).
Discussion and conclusions:
Excess mortality in those with SMI occurred across all socioeconomic quintiles compared to the Glasgow and Scottish populations but was most marked in the most deprived quintiles when suicide was excluded as a cause of death. Further work assessing the impact of socioeconomic status on specific causes of premature mortality in SMI is needed
On the use of the group SO(4,2) in atomic and molecular physics
In this paper the dynamical noninvariance group SO(4,2) for a hydrogen-like
atom is derived through two different approaches. The first one is by an
established traditional ascent process starting from the symmetry group SO(3).
This approach is presented in a mathematically oriented original way with a
special emphasis on maximally superintegrable systems, N-dimensional extension
and little groups. The second approach is by a new symmetry descent process
starting from the noninvariance dynamical group Sp(8,R) for a four-dimensional
harmonic oscillator. It is based on the little known concept of a Lie algebra
under constraints and corresponds in some sense to a symmetry breaking
mechanism. This paper ends with a brief discussion of the interest of SO(4,2)
for a new group-theoretical approach to the periodic table of chemical
elements. In this connection, a general ongoing programme based on the use of a
complete set of commuting operators is briefly described. It is believed that
the present paper could be useful not only to the atomic and molecular
community but also to people working in theoretical and mathematical physics.Comment: 31 page
Mapping Helminth Co-Infection and Co-Intensity: Geostatistical Prediction in Ghana
Urinary schistosomiasis and hookworm infections cause considerable morbidity in school age children in West Africa. Severe morbidity is predominantly observed in individuals infected with both parasite types and, in particular, with heavy infections. We investigated for the first time the distribution of S. haematobium and hookworm co-infections and distribution of co-intensity of these parasites in Ghana. Bayesian geostatistical models were developed to generate a national co-infection map and national intensity maps for each parasite, using data on S. haematobium and hookworm prevalence and egg concentration (expressed as eggs per 10 mL of urine for S. haematobium and expressed as eggs per gram of faeces for hookworm), collected during a pre-intervention baseline survey in Ghana, 2008. In contrast with previous findings from the East Africa region, we found that both S. haematobium and hookworm infections are highly focal, resulting in small, localized clusters of co-infection and areas of high co-intensity. Overlaying on a single map the co-infection and the intensity of multiple parasite infections allows identification of areas where parasite environmental contamination and morbidity are at its highest, while providing an evidence base for the assessment of the progress of successive rounds of mass drug administration (MDA) in integrated parasitic disease control programs
Detection of multiple respiratory pathogens during primary respiratory infection: nasal swab versus nasopharyngeal aspirate using real-time polymerase chain reaction
In this study, we present the multiple detection of respiratory viruses in infants during primary respiratory illness, investigate the sensitivity of nasal swabs and nasopharyngeal aspirates, and assess whether patient characteristics and viral load played a role in the sensitivity. Healthy infants were included at signs of first respiratory tract infection. Paired nasopharyngeal aspirates and nasal swabs were collected. Real-time polymerase chain reaction (PCR) was carried out for 11 respiratory pathogens. Paired nasopharyngeal aspirates and nasal swabs were collected in 98 infants. Rhinovirus (n = 67) and respiratory syncytial virus (n = 39) were the most frequently detected. Co-infection occurred in 48% (n = 45) of the infants. The sensitivity of the nasal swab was lower than the nasopharyngeal aspirate, in particular, for respiratory syncytial virus (51% vs. 100%) and rhinovirus (75% vs. 97%). The sensitivity of the nasal swab was strongly determined by the cycle threshold (CT) value (p < 0.001). The sensitivity of the swab for respiratory syncytial virus, but not rhinovirus, was 100% in children with severe symptoms (score ≥11). It is concluded that, for community-based studies and surveillance purposes, the nasal swab can be used, though the sensitivity is lower than the aspirate, in particular, for the detection of mild cases of respiratory syncytial virus (RSV) infection
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