Breeding, husbandry, veterinary care, and hematology of marsh rice rats (Oryzomys palustris), a small animal model for periodontitis.

Rice rats (Oryzomys palustris) are a recognized animal model for studying periodontal disease and the photoperiodic regulation of reproduction. Here we share information regarding the breeding, husbandry, veterinary care, and hematologic findings about this animal species to facilitate its use in studies at other research institutions. Rice rats initially were quarantined and monitored for excluded pathogens by using microbiologic, parasitologic, and serologic methods with adult female Mus musculus and Rattus norvegicus sentinel animals.

Draft Genome Sequence of the Novel Black-Pigmented Planococcus sp. Strain CAU13.

Presented here is the whole-genome sequence of a previously uncharacterized species of the genus Planococcus. A 16S sequence analysis shows that this bacterium exhibits 98% sequence identity to the closest relative of Planococcus kocurii. Whereas most species of Planococcus produce yellow to orange pigments, the species described here produces black pigmentation.

Factors associated with grip strength decline in older adults.

Background: Few studies have examined associations of multi-faceted demographic, health and lifestyle factors with long-term change in grip strength performance across the adult lifespan. The aim of this study was to examine the associations of risk factors in specific parts of the adult lifespan (e.g.

Blood glucose, diet-based glycemic load and cognitive aging among dementia-free older adults.

Background: Although evidence indicates that Type II Diabetes is related to abnormal brain aging, the influence of elevated blood glucose on long-term cognitive change is unclear. In addition, the relationship between diet-based glycemic load and cognitive aging has not been extensively studied. The focus of this study was to investigate the influence of diet-based glycemic load and blood glucose on cognitive aging in older adults followed for up to 16 years.

Genetic and environmental contributions to the associations between intraindividual variability in reaction time and cognitive function.

Intraindividual variability (IIV) in reaction time has been related to cognitive decline, but questions remain about the nature of this relationship. Mean and range in movement and decision time for simple reaction time were available from 241 individuals aged 51-86 years at the fifth testing wave of the Swedish Adoption/Twin Study of Aging. Cognitive performance on four factors was also available: verbal, spatial, memory, and speed.

Sex Differences in Genetic and Environmental Influences on Longitudinal Change in Functional Ability in Late Adulthood.

Objectives: To determine the extent to which genetic and environmental factors contribute to individual and gender differences in aging of functional ability.

Method: Twenty assessments of functional ability are collected as part of the longitudinal Swedish Adoption/Twin Study of Aging from 859 twins aged 50-88 at the first wave. Participants completed up to 6 assessments covering a 19-year period.

Computational study of the propagation of the longitudinal velocity in a polymer melt contained within a cylinder using a scale-bridging method.

The "constitutive equation"-free scale-bridging method connecting nonequilibrium molecular dynamics and continuum fluid mechanics, that had hitherto been applied only to a parallel-plates geometry, is extended to study the flow of a polymer melt in a cylindrical pipe subject to a velocity in the direction parallel to the cylinder's axis. The system, initially at rest, is given a velocity at the cylinder's surface, and the evolution of the velocity profile within the fluid is studied, along with the time taken for the velocity to propagate toward the cylinder's axis. The said time of propagation is found to increase with the boundary velocity-a fact in contrast with the case of a Newtonian fluid for which the time of propagation is expected to be independent of the boundary velocity.

Reasons registered nurses report serious wrongdoings in a public teaching hospital.

This study examined reasons a registered nurse would report a wrongdoing within a public teaching hospital. Of a group of 238 initial respondents, 30% reported they had observed a wrongdoing in the past year, with 68 nurses indicating they had reported a wrongdoing in the past year. The latter group was the focus of this study.

Genetic and environmental variation in lung function drives subsequent variation in aging of fluid intelligence.

Longitudinal studies document an association of pulmonary function with cognitive function in middle-aged and older adults. Previous analyses have identified a genetic contribution to the relationship between pulmonary function with fluid intelligence. The goal of the current analysis was to apply the biometric dual change score model to consider the possibility of temporal dynamics underlying the genetic covariance between aging trajectories for pulmonary function and fluid intelligence.

Melatonin, But not auxin, affects postnatal reproductive development in the marsh rice rat (Oryzomys palustris).

Melatonin and the plant hormone auxin (indole-3-acetic acid) have some structural similarity and, may thus exert comparable physiological effects on reproduction and growth. To test this possibility, I examined the effects of melatonin and auxin administration on reproductive and non-reproductive organ development in an animal model, the marsh rice rat Oryzomys palustris. Juvenile males housed under 14L:10D conditions were injected daily for four weeks with saline, melatonin, auxin, or melatonin and auxin, and the development of the testes and other organs was assessed.

Affording to exchange: social capital and online information sharing.

The potential harm and benefit associated with sharing personal information online is a topic of debate and discussion. Using survey methods (n=872), we explore whether attainment of social capital online relates to greater comfort with sharing personal information. We found that perceptions of bridging and bonding social capital earned from using Facebook are significant predictors of overall comfort levels with sharing personal information.

Shared and unique genetic and environmental influences on aging-related changes in multiple cognitive abilities.

Aging-related declines occur in many different domains of cognitive function during middle and late adulthood. However, whether a global dimension underlies individual differences in changes in different domains of cognition and whether global genetic influences on cognitive changes exist is less clear. We addressed these issues by applying multivariate growth curve models to longitudinal data from 857 individuals from the Swedish Adoption/Twin Study of Aging, who had been measured on 11 cognitive variables representative of verbal, spatial, memory, and processing speed abilities up to 5 times over up to 16 years between ages 50 and 96 years.

An investigation of abusive supervision, vicarious abusive supervision, and their joint impacts.

Recent work has begun to look at the impact of abusive supervision, a dysfunctional workplace behavior, on employee outcomes. This study extends this line of research by examining vicarious abusive supervision (abuse not directly experienced, but rumors about it or hearing about it, that is "experienced vicariously"). In particular, this research effort investigates whether vicarious abuse has effects above and beyond those accounted for by personally experienced abusive supervision on the outcomes of job frustration, coworker abuse, and perceived organizational support.

Effects of message framing in anti-binge drinking PSAs: the moderating role of counterfactual thinking.

This experiment examined the interaction effects of message framing and counterfactual thinking on attitudes toward binge drinking and behavioral intentions. Data from a 2 (message framing: gain vs. loss) × 2 (counterfactual thinking priming: additive vs.

Fever management in patients with brain injury.

Elevated temperature in patients with brain injury has been linked to increased hospital and intensive care unit lengths of stay, increased morbidity, greater disability, and higher mortality. The prevailing medical opinion is that maintaining normothermia in patients with acute brain injury is beneficial. However, little evidence exists to support this recommendation.

Synthesis and biological evaluation of naloxone and naltrexone-derived hybrid opioids.

The synthesis and biological evaluation of hybrid opioids consisting of Naloxone or Naltrexone and a partial opioid peptide are described. These compounds were synthesized in a homogeneous solution as well as in solid phase. A hydrazone linkage was employed to connect the alkaloids to the tetrapeptides.

Both odor identification and ApoE-ε4 contribute to normative cognitive aging.

Research indicates that apoliprotein E (ApoE) plays a role in the development of Alzheimer's disease (AD) and possibly in the cognitive decline associated with normative aging. More recently, researchers have shown that ApoE is expressed in olfactory brain structures, and a relationship among ApoE, AD, and olfactory function has been proposed. In the current analyses, we investigated the contribution of ApoE and odor identification in decline trajectories associated with normative cognitive aging in various domains, using longitudinal data on cognitive performance available from the Swedish Adoption/Twin Study of Aging.

Who abuses their coworkers? An examination of personality and situational variables.

This study examines predictors of abusive employee behavior toward coworkers. We examined two personality variables, negative affectivity and political skill, and two situational relationship variables-team member exchange and coworker relationship conflict. We tested our hypotheses with data obtained from a sample of 232 working employees.

Quantification of intraoral pressures during nutritive sucking: methods with normal infants.

We report quantitative measurements of ten parameters of nutritive sucking behavior in 91 normal full-term infants obtained using a novel device (an Orometer) and a data collection/analytical system (Suck Editor). The sucking parameters assessed include the number of sucks, mean pressure amplitude of sucks, mean frequency of sucks per second, mean suck interval in seconds, sucking amplitude variability, suck interval variability, number of suck bursts, mean number of sucks per suck burst, mean suck burst duration, and mean interburst gap duration. For analyses, test sessions were divided into 4 × 2-min segments.

Lessons learned from the 1918-1919 influenza pandemic.

The 1918 influenza pandemic was one of the most virulent strains of influenza in history. Phylogenic evidence of the novel H1N1 strain of influenza discovered in Mexico last spring (2009) links it to the 1918 influenza strain. With information gained from analyzing viral genetics, public health records and advances in medical science we can confront the 2009 H1N1 influenza on a global scale.

The role of occupational complexity in trajectories of cognitive aging before and after retirement.

We examined the association between complexity of the main lifetime occupation and changes in cognitive ability in later life. Data on complexity of work with data, people, and things and on 4 cognitive factors (verbal, spatial, memory, and speed) were available from 462 individuals in the longitudinal Swedish Adoption/Twin Study of Aging. Mean age at the first measurement wave was 64.

What shy individuals do to cope with their shyness: a content analysis and evaluation of self-selected coping strategies.

A content analysis of the written responses of 158 shy individuals was performed to investigate the nature of the self-selected strategies they reported using to deal with their shyness. The classification, along with the frequency of their use, of the self-selected strategies by four raters identified 10 separate categories, with the top five labeled forced extraversion (65%), cognitively induced self-reassurance (26%), educational extraversion (15.2%), sought professional help (14.

Death and dying course offerings in psychology: a survey of nine Midwestern states.

The certainty of facing death and bereavement and the complex personal and societal issues involved argue for the importance of death education. The current study addresses a gap in knowledge by beginning to assess the extent of dying, death, and bereavement (DD&B) course offerings by U.S.

Genetic variance in processing speed drives variation in aging of spatial and memory abilities.

Previous analyses have identified a genetic contribution to the correlation between declines with age in processing speed and higher cognitive abilities. The goal of the current analysis was to apply the biometric dual change score model to consider the possibility of temporal dynamics underlying the genetic covariance between aging trajectories for processing speed and cognitive abilities. Longitudinal twin data from the Swedish Adoption/Twin Study of Aging, including up to 5 measurement occasions covering a 16-year period, were available from 806 participants ranging in age from 50 to 88 years at the 1st measurement wave.