1,109 research outputs found
Effects of Smoking vs. Nicotine Replacement Therapy During Pregnancy on Childhood Health Outcomes: An Integrative Literature Review
PICOT: In pregnant women does the use of nicotine replacement therapy compared to smoking during pregnancy reduce the risk of future childhood health concerns?
Methods: A search was conducted on healthcare literature databases (Alt HealthWatch, AMED, CINAHL, and Medline).The initial search yielded 940 results related to the topic. Initial review narrowed the search to 25 articles. Articles were excluded if published before 2008. After reviewing the full articles and evaluating effectiveness of the studies, 12 studies met the criteria. These 12 articles focused on the effects of smoking and childhood outcomes, NRT, and success of NRT.
Findings: The articles concluded that NRT may aid in positive health outcomes since it excludes the risk factors associated with carbon monoxide and other carcinogens found in cigarettes. The NRT still delivers significant levels of nicotine exposure to the fetus and leads to pregnancy complications ending in low birth weight and preterm birth.
Recommendations: Further studies should be conducted on the effects of nicotine and NRT especially on birth outcomes and future childhood health concerns
General Landscape Connectivity Model (GLCM): a new way to map whole of landscape biodiversity functional connectivity for operational planning and reporting
Graph-theoretic approaches are commonly used to map landscape connectivity networks to inform environmental management priorities. We developed the new General Landscape Connectivity Model (GLCM), as a operationally practical way of evaluating and mapping habitat networks to inform conservation priorities and plans. GLCM is built on two complementary metapopulation ecology-based measures: Neighbourhood habitat area (Ni) and habitat link value (Li). Ni is a measure of the amount of connected habitat to each location considering its cross-scale connectivity to neighbouring habitat. The remaining Ni across a region can be reported as an indicator of Ecological Carrying Capacity for wildlife (plants and animals). Li at any location is its contribution to the landscape connectivity of the study region (i.e. which is reported as summed Ni across a region) by virtue of providing the ‘least-cost’ linkages between concentrations of habitat. Mapped Li provides valuable insights into the pattern of a region’s habitat network, highlighting functioning habitat corridors and stepping-stones, and candidate areas for conservation and restoration. Due to its foundations in ecological theory and its parsimonious design, GLCM addresses a number of criteria we list as important, while addressing criticisms often levelled at graph-theoretical approaches. We present results for three south-east Australian case studies using continuous-value ecological condition surfaces as input. However, a simple habitat/non-habitat binary surface approximating a threshold ecological condition can also be used. GLCM has been designed to specifically address the need for generic landscape connectivity assessment at regional scales, and broader. It incorporates connectivity analyses across a range of spatial scales and granularities relevant to broad ranges of taxa and movement processes (foraging, dispersal and migration). Successively finer spatial scales are more intensively sampled based on a simple scaling-law. This approach allows analysis resoluti ons to be determined by data-driven ecological relevance rather than by processing limitations. The operational advantages of GLCM means that landscape connectivity assessments can be readily updated with refined or changed inputs including time-series remote sensing of land cover, or applied to alternative scenarios of land use, ecological restoration, climate projections or combinations of these
Which environmental variables should I use in my biodiversity model?
Appropriate selection of environmental variables is critical to the performance of biodiversity models, but has received less attention than the choice of modelling method. Online aggregators of biological and environmental data, such as the Global Biodiversity Information Facility and the Atlas of Living Australia, necessitate a rational approach to variable selection. We outline a set of general principles for systematically identifying, compiling, evaluating and selecting environmental variables for a biodiversity model. Our approach aims to maximise the information obtained from the analysis of biological records linked to a potentially large suite of spatial environmental variables. We demonstrate the utility of this structured framework through case studies with Australian vascular plants: regional modelling of a species distribution, continent-wide modelling of species compositional turnover and environmental classification. The approach is informed by three components of a biodiversity model: (1) an ecological framework or conceptual model, (2) a data model concerning availability, resolution and variable selection and (3) a method for analysing data. We expand the data model in structuring the problem of choosing environmental variables. The case studies demonstrate a structured approach for the: (1) cost-effective compilation of variables in the context of an explicit ecological framework for the study, attribute accuracy and resolution; (2) evaluation of non-linear relationships between variables using knowledge of their derivation, scatter plots and dissimilarity matrices; (3) selection and grouping of variables based on hypotheses of relative ecological importance and perceived predictor effectiveness; (4) systematic testing of variables as predictors through the process of model building and refinement and (5) model critique, inference and synthesis using direct gradient analysis to evaluate the shape of response curves in the context of ecological theory by presenting predictions in both geographic and environmental space
Upper extremity freezing and dyscoordination in Parkinson\u27s disease: Effects of amplitude and cadence manipulations
Purpose. Motor freezing, the inability to produce effective movement, is associated with decreasing amplitude, hastening of movement, and poor coordination. We investigated how manipulations of movement amplitude and cadence affect upper extremity (UE) coordination as measured by the phase coordination index (PCI)—only previously measured in gait—and freezing of the upper extremity (FO-UE) in people with Parkinson's disease (PD) who experience freezing of gait (PD + FOG), do not experience FOG (PD-FOG), and healthy controls. Methods. Twenty-seven participants with PD and 18 healthy older adults made alternating bimanual movements between targets under four conditions: Baseline; Fast; Small; SmallFast. Kinematic data were recorded and analyzed for PCI and FO-UE events. PCI and FO-UE were compared across groups and conditions. Correlations between UE PCI, gait PCI, FO-UE, and Freezing of Gait Questionnaire (FOG-Q) were determined. Results. PD + FOG had poorer coordination than healthy old during SmallFast. UE coordination correlated with number of FO-UE episodes in two conditions and FOG-Q score in one. No differences existed between PD−/+FOG in coordination or number of FO-UE episodes. Conclusions. Dyscoordination and FO-UE can be elicited by manipulating cadence and amplitude of an alternating bimanual task. It remains unclear whether FO-UE and FOG share common mechanisms
Reproductive and Sexual Healthcare Needs Among Adults with Disabilities as Perceived by Social Workers
People with disabilities often experience unique gynecological and reproductive healthcare needs, which may be exacerbated by their experience of sexual victimization. Previous research on adolescents with disabilities found that social workers held beneficial roles in supporting their clients to make empowered decisions concerning sexual healthcare, pregnancy, and parenting. This study aimed to assess the reproductive and sexual health needs of adults with various disabilities from the perspectives of their social workers. Eleven social workers working primarily with adults with various disabilities were interviewed using a phenomenological study design to offer their perspectives of the sexual and reproductive health needs of their clients. Interviews were transcribed and analyzed; themes and subthemes were identified. According to social workers, (1) adults with disabilities experienced distinctive reproductive healthcare interactions and challenges, including specific needs that were uniquely related to risks for sexual victimization and (2) social workers performed several roles in supporting sexual and reproductive healthcare of these clients, including education and brokering. Social workers demonstrated the need to support clients within a biopsychosocial framework since their biological, psychological, and social needs intersected to either restrain or empower their reproductive health. Social workers played key roles in supporting their clients in reproductive and sexual health decision-making, yet appeared to struggle to address ethical dilemmas, especially those related to ensuring their clients’ well-being and self-determination. Secondly, the results of this study made a connection between challenges in adults with disabilities’ receipt of health wellness exams and histories of sexual victimization
Social Workers’ Roles in Supporting the Sexual and Relational Health of Children with Disabilities
The purpose of this study was to understand social workers’ roles in meeting the sexual and relational health needs of children (aged 3–11) with disabilities. We conducted semi-structured interviews with 12 social workers from a range of practice settings. A phenomenological lens privileged the perspectives of social workers in their definitions of disability and sought to convey the meaning they assigned to their experiences of working with children in practice concerning matters related to sexual and relational health. Social workers enacted a broad definition of disability and often came to work with youth in contexts labeled as sexually problematic. In the provision of sexual health services, social workers embodied commonly adhered to roles including as practitioners, enablers, advocates, brokers, and managers. Services are needed that promote positive sexuality and relational health among children with disabilities. It is important that social workers be proactive advocates for the full inclusion of people with disabilities as equal sexual citizens
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