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Review findings on the role of dietary patterns in preventing depression are inconsistent, possibly due to variation in assessment of dietary exposure and depression. We studied the association between dietary patterns and depressive symptoms in six population-based cohorts and meta-analysed the findings using a standardised approach that defined dietary exposure, depression assessment and covariates.
Included were cross-sectional data from 23 026 participants in six cohorts: InCHIANTI (Italy), LASA, NESDA, HELIUS (the Netherlands), ALSWH (Australia) and Whitehall II (UK). Analysis of incidence was based on three cohorts with repeated measures of depressive symptoms at 5–6 years of follow-up in 10 721 participants: Whitehall II, InCHIANTI, ALSWH. Three a priori dietary patterns, Mediterranean diet score (MDS), Alternative Healthy Eating Index (AHEI-2010), and the Dietary Approaches to Stop Hypertension (DASH) diet were investigated in relation to depressive symptoms. Analyses at the cohort-level adjusted for a fixed set of confounders, meta-analysis used a random-effects model.
Cross-sectional and prospective analyses showed statistically significant inverse associations of the three dietary patterns with depressive symptoms (continuous and dichotomous). In cross-sectional analysis, the association of diet with depressive symptoms using a cut-off yielded an adjusted OR of 0.87 (95% confidence interval 0.84–0.91) for MDS, 0.93 (0.88–0.98) for AHEI-2010, and 0.94 (0.87–1.01) for DASH. Similar associations were observed prospectively: 0.88 (0.80–0.96) for MDS; 0.95 (0.84–1.06) for AHEI-2010; 0.90 (0.84–0.97) for DASH.
Population-scale observational evidence indicates that adults following a healthy dietary pattern have fewer depressive symptoms and lower risk of developing depressive symptoms.
Spatial models are increasingly being used to target the most suitable areas for biodiversity conservation. This study investigates how the spatial tool Marxan with Zones (MARZONE) can be used to support the design of cost-effective biodiversity conservation policy. New in this study is the spatial analysis of the costs and effectiveness of different agro-environmental measures (AEMs) for habitat and biodiversity conservation in the Montado ecosystem in Portugal. A distinction is made between the financial costs paid to participating landowners and farmers for adopting AEMs and the broader economic opportunity costs of the corresponding land-use changes. Habitat and species conservation targets are furthermore defined interactively with the local government agency responsible for the management of protected areas, while the costs of agro-forestry activities and alternative land uses are estimated in direct consultation with local landowners. MARZONE identifies the spatial distribution of priority areas for conservation and the associated costs, some of which overlap with existing protected areas. These results provide useful insights into the trade-offs between nature conservation and the opportunity costs of protecting ecologically vulnerable areas, helping to improve current and future conservation policy design.
While numerous studies have recently shown that variation in input quantity predicts children’s rate of acquisition across a range of language skills, comparatively little is known about the impact of variation in input quality on (bilingual) children’s language development. This study investigated the relation between specific quality-oriented properties of bilingual children’s input and measures of children’s language development across a number of skills while at the same time taking family constellation into account. Participants were bilingual preschoolers (n = 50) acquiring Dutch alongside another language. Preschoolers’ receptive and productive vocabulary and morphosyntax in Dutch were assessed. Parental questionnaires were used to derive estimates of input quality. Family constellation was first operationalized as presence of a native-speaker parent and subsequently in terms of patterns of parental language use. Results showed that proportion of native input and having a native-speaker parent were never significant predictors of children’s language skills, whereas the degree of non-nativeness in the input, family constellation in terms of parental language use, and language richness were. This study shows that what matters is not how much exposure bilingual children have to native rather than non-native speakers, but how proficient any non-native speakers are.
Families with neurodevelopmental disorders engage in varied types of therapies to address behavioural, communication and cognitive challenges. Research suggests that consistent therapy adherence predicts positive therapy outcomes. The present study examined therapy adherence in 55 parent-child dyads where all children had been diagnosed with ASD, ADHD, and/or ID. Parents completed questionnaires assessing demographics, therapy type, adherence to child treatment, parental stress, and challenging child behaviour. The researchers proposed a new scale, the Child Therapy Adherence Scale (CTAS), which initial testing supported as a reliable measure of therapy adherence. Significant relationships were found between parental stress, annual household income and therapy adherence, with parental stress being a notably strong predictor of therapy adherence. No significant relationships were observed between child challenging behaviour, single parent status and therapy adherence. These findings have implications for practitioners, in that parent levels of stress and demographic influences may impact capacity to adhere to recommended home practice and interventions for children with neurodevelopmental disorders.
After five positive randomized controlled trials showed benefit of mechanical thrombectomy in the management of acute ischemic stroke with emergent large-vessel occlusion, a multi-society meeting was organized during the 17th Congress of the World Federation of Interventional and Therapeutic Neuroradiology in October 2017 in Budapest, Hungary. This multi-society meeting was dedicated to establish standards of practice in acute ischemic stroke intervention aiming for a consensus on the minimum requirements for centers providing such treatment. In an ideal situation, all patients would be treated at a center offering a full spectrum of neuroendovascular care (a level 1 center). However, for geographical reasons, some patients are unable to reach such a center in a reasonable period of time. With this in mind, the group paid special attention to define recommendations on the prerequisites of organizing stroke centers providing medical thrombectomy for acute ischemic stroke, but not for other neurovascular diseases (level 2 centers). Finally, some centers will have a stroke unit and offer intravenous thrombolysis, but not any endovascular stroke therapy (level 3 centers). Together, these level 1, 2, and 3 centers form a complete stroke system of care. The multi-society group provides recommendations and a framework for the development of medical thrombectomy services worldwide.
The instrument employs a fully-focussing optical system which allows a wide range of sample-orientations and thus permits determination of the preferred-orientation distribution-function. Hence, measured peak-intensifies can be corrected for non-randomness.
The sample performs a planetary motion around the focus of the primary, monochromatic beam. The angle of incidence can be varied over a wide range of values, including both transmission and reflection. The sample can be rotated in its own plane in a controlled manner. Full illumination is obtained in any position of the sample. The diameter of the Rowland-sphere of the powder-optics remains constant and permits the use of a sphericai sample-layer.
The Fundamental Parameter-based calculation of x-ray fluorescence intensities for thin and multilayer samples is performed with new formulas. By the calculations it is shown that both intra- and inter-layer secondary fluorescence can cause significant enhancement. With a method based on the discussed theory, it is possible to determine the composition and layer thicknesses of multilayer samples. Analyses are discussed of samples from IC technology and magnetic recording. Furthermore, the angular dependence of intensities is calculated, in good agreement with experiments performed with a novel spectrometer.
OBJECTIVES/SPECIFIC AIMS: 1.Assess changes in clinical research workforce landscape at Duke 2.Optimize and evaluate efficacy of a tier advancement process for clinical research career progression at Duke 3.Implement CRP engagement as a change management mechanism for workforce innovation METHODS/STUDY POPULATION: We evaluated 857 clinical research positions at Duke to understand changes in the workforce (demographics, numbers in each position and tier) since implementing the tier advancement process in 2016. To understand the efficacy of the tier assessment process, data from a subset of this population (n=84) who underwent the advancement process was examined for success rate. Individual employees and their managers were surveyed to understand their perception of the advancement process and identify areas for improvement. We also describe implementation of multiple mechanisms of community engagement to manage expectations around the tier advancement process and to provide opportunities for employees to self-manage their career planning, including portfolio planning and leadership opportunities. RESULTS/ANTICIPATED RESULTS: Whereas the clinical research workforce has grown by 5.5% since tiering began (2016, n=810; 2018 n=857). Nearly 13% of that growth has been in managerial or senior positions (2016, n=111; 2018 n=127). Distributions across job classifications changed only slightly, representing realignment of positions with study-level responsibilities over department-level responsibilities. Notably, clinical research nurses (CRNC & CRNC Sr.) was the only category including tiered and non-tiered positions to drop overall numbers between 2016 (n = 136) and 2018 (n=115), representing a shift in the workforce from research nurses to research coordinators. General demographics (gender, age) remained largely the same. A total of 359 positions have been hired during this time frame, nearly half of which were entry-level positions (175/359): 47 of these positions represent expansion of the workforce. Of 359 new hires since 2016, 271 currently still work in one of the research roles. Of the 84 employees who underwent the tier advancement process, 84% (43/51) succeeded in tier 2 advancement, 70% (14/20) succeeded in tier 3 advancement (CRC, CRNC, and regulatory coordinators), and 77% (10/13) of research program leaders (RPLs) succeeded in achieving tier two, which is the highest tier for this group. Fifty-five employees (65%) and 32 managers responded to a voluntary feedback survey. Overall confidence in the process improved in both groups from 2016 to 2018, most notably with managers. Both groups indicated a 10 hour reduction (employees = 35hr, 2016 and 25hr 2018; managers 25hr, 2016 and 15hr 2018) in time required to complete the tier advancement process. DISCUSSION/SIGNIFICANCE OF IMPACT: The use of objectively-assessed competencies is an important step in the development of a workforce. By 1) maintaining alignment with industry standards for competencies, 2) upholding high standards, and 3) offering a consistent approach to career growth, Duke is working to develop and maintain a workforce that supports high quality research. Since the implementation of standardized job classifications and competency-based tier advancement, the positions have undergone rigorous competency-based needs evaluation. This leads to better matched jobs to study needs as well as increased standardization across the clinical research workforce. We believe that the subtle workforce shifts represent alignment of our positions with the business needs of our clinical research enterprise. Additionally, approximately 15% of our clinical research workforce has taken advantage of the opportunity to advance their own careers. We have made significant improvements in the following tier advancement processes: standardization of assessments, scoring guides, and modes; changes from LMS to a REDCap delivery of the knowledge assessments; streamlined the utilization of electronic documentation; and additional guidance for employees and managers regarding portfolio inclusions. These improvements have increased satisfaction and acceptance with the advancement process and were made possible through strategic communication across the workforce. Regular town hall meetings and focus group feedback sessions have included the clinical research community in discussions of WE-R initiatives and provided a much-needed feedback loop for process improvement and change management. Moreover, inclusion of WE-R discussion in our Research Professional Network events has provided opportunities to discuss career advancement strategies as well as volunteer opportunities to grow and demonstrate leadership competencies.
For a long time, sexual violence in conflict has been seen and largely prosecuted as crimes committed by men against women. Only recently, the international community is becoming aware of the brutality of sexual violence perpetrated against men in conflict situations, and that the number of these atrocities is much higher than has always previously been assumed. Similarly, like men, women and girls are capable – and indeed have done so – of committing atrocious forms of conflict-related sexual violence against men, boys, women and girls alike.
According to Rosalind Petchesky, ‘acts of sexual violence against men, women … are named and experienced differently, which is what it means to say they are gendered’. Building on this insight, this chapter deals with the two oft en marginalised categories of conflict situations with regards to sexual violence, namely male victims and female perpetrators. It first explores the lack of awareness and knowledge surrounding both male victims and female perpetrators of sexual violence and the underlying reasons for such violence. It then discusses how gender norms regarding sexual violence impact on all aspects of the international justice process. In the case of male victims of sexual violence, attention is drawn to the tendency to erase the sexual nature of the crime by using a more general label, such as torture. It will be argued that this state of affairs derives from gender norms, which make male victimisation, and especially male sexual victimisation, inconsistent with ideals of masculinity. In the case of female perpetrators of conflict-related sexual violence, it will be argued that the existence of female perpetrators of sexual violence in conflict is at odds with ideals of femininity. Attention will, inter alia, be drawn to the tendency of these women to deny their ability – as women – to commit sexual violence. The chapter ends with some concluding remarks on the ways forward in understanding and prosecuting male sexual victimisation and sexual violence perpetrated by women.
This study investigated bidirectional associations between intake of food groups and depressive symptoms in 1058 Italian participants (aged 20–102 years) of the Invecchiare in Chianti study. Dietary intake, assessed with a validated FFQ, and depressive symptoms, measured with the Center for Epidemiologic Studies Depression scale (CES-D), were assessed at baseline and after 3, 6 and 9 years. Associations of repeated measurements of intakes of thirteen food groups with 3-year changes in depressive symptoms, and vice versa, were analysed using linear mixed models and logistic generalised estimating equations. Fish intake was inversely (quartile (Q)4 v. Q1, B=–0·97, 95 % CI –1·74, –0·21) and sweet food intake positively (Q4 v. Q1, B=1·03, 95 % CI 0·25, 1·81) associated with subsequent CES-D score. In the other direction, higher CES-D scores were associated with decreases in intakes of vegetables (ratio: 0·995, 95 % CI 0·990, 0·999) and red and processed meat (B=–0·006, 95 % CI –0·010, –0·001), an increase in dairy product intake (ratio: 1·008, 95 % CI 1·004, 1·013), and increasing odds of eating savoury snacks (OR: 1·012, 95 % CI 1·000, 1·024). Fruit, nuts and legumes, potatoes, wholegrain bread, olive oil, sugar-sweetened beverages, and coffee and tea were not significantly associated in either direction. Our study confirmed bidirectional associations between food group intakes and depressive symptoms. Fish and sweet food intakes were associated with 3-year improvement and deterioration in depressive symptoms, respectively. Depressive symptoms were associated with 3-year changes in vegetable, meat, dairy product and savoury snack intakes. Trials are necessary to examine the causal associations between food groups and depression.
Pregnant and lactating women and breastfed infants are at risk of vitamin D deficiency. The supplemental vitamin D dose that optimises maternal vitamin D status and breast milk antirachitic activity (ARA) is unclear. Healthy pregnant women were randomised to 10 (n 10), 35 (n 11), 60 (n 11) and 85 (n 11) µg vitamin D3/d from 20 gestational weeks (GW) to 4 weeks postpartum (PP). The participants also received increasing dosages of fish oil supplements and a multivitamin. Treatment allocation was not blinded. Parent vitamin D and 25-hydroxyvitamin D (25(OH)D) were measured in maternal plasma at 20 GW, 36 GW and 4 weeks PP, and in milk at 4 weeks PP. Median 25(OH)D and parent vitamin D at 20 GW were 85 (range 25–131) nmol/l and ‘not detectable (nd)’ (range nd–40) nmol/l. Both increased, seemingly dose dependent, from 20 to 36 GW and decreased from 36 GW to 4 weeks PP. In all, 35 µg vitamin D/d was needed to increase 25(OH)D to adequacy (80–249 nmol/l) in >97·5 % of participants at 36 GW, while >85 µg/d was needed to reach this criterion at 4 weeks PP. The 25(OH)D increments from 20 to 36 GW and from 20 GW to 4 weeks PP diminished with supplemental dose and related inversely to 25(OH)D at 20 GW. Milk ARA related to vitamin D3 dose, but the infant adequate intake of 513 IU/l was not reached. Vitamin D3 dosages of 35 and >85 µg/d were needed to reach adequate maternal vitamin D status at 36 GW and 4 weeks PP, respectively.
The gradual disengagement of mathematics from logic. Beginning with a historical review of the development of mathematical thought, we have to consider successively (cf. 10, pp. 139-140):
(1) The observational period. For some familiar regularities of (outer or inner) experience of time and space, which, to any attainable degree of approximation, seemed invariable, absolute and sure invariability was postulated. These regularities were called axioms and were put into language. Thereupon extensive systems of properties were developed from the linguistic substratum of the axioms by means of reasoning, guided by experience but linguistically following and using the principles of classical logic. This logic was considered autonomous, and mathematics was considered more or less dependent on logic.
This study investigated whether cross-linguistic differences affect semantic prediction. We assessed this by looking at two languages, Dutch and Turkish, that differ in word order and thus vary in how words come together to create sentence meaning. In an eye-tracking task, Dutch and Turkish four-year-olds (N = 40), five-year-olds (N = 58), and adults (N = 40) were presented with a visual display containing two familiar objects (e.g., a cake and a tree). Participants heard semantically constraining (e.g., “The boy eats the big cake”) or neutral sentences (e.g., “The boy sees the big cake”) in their native language. The Dutch data revealed a prediction effect for children and adults; however, it was larger for the adults. The Turkish data revealed no prediction effect for the children but only for the adults. These findings reveal that experience with word order structures and/or automatization of language processing routines may lead to timecourse differences in semantic prediction.
A total of eight foxhound packs in England and Wales were screened for Echinococcus species using a genus-specific coproantigen ELISA and for Echinococcus granulosus sensu lato and Echinococcus equinus by coproPCR. Main screening (n = 364 hounds) occurred during 2010–2011 wherein a quarter (25.6%) of the foxhound fecal samples tested were Echinococcus coproantigen-positive (93/364). In total, five of eight (62.5%) hunts screened had coproantigen-positive hounds; coproantigen prevalence for individual foxhound packs ranged from 0 to 61.2% and was shown to be >30% in three hunts (in counties of Powys, Wales and Northumberland, England). Foxhound fecal samples from six of the eight tested hunts (four Welsh and two English hunts) were positive by coproPCR for E. granulosus s.l (including one sequence confirmation of E. granulosus sensu stricto) and E. equinus DNA. Analysis of hunt questionnaire data suggested that there was an association between poor foxhound husbandry, especially feeding practices and Echinococcus coproantigen prevalence. Clearer guidelines regarding the risk of canine echinococcosis are required for safe management of foxhound hunts in England and Wales.
Zn deficiency and diarrhoea are prevalent and may coexist in children living in low-resource settings. Recently, a novel approach for delivering Zn via microbiologically treated, Zn-fortified water was shown to be effective in improving Zn status in West African schoolchildren. We assessed the effectiveness of Zn-fortified, microbiologically purified water delivered as a household intervention on Zn intake, status and morbidity in children aged 2–6 years from rural western Kenya.
Randomised controlled trial. Intervention included households assigned to water treatment device with (ZFW) or without (FW) Zn delivery capability
Rural households in Kisumu, western Kenya.
Children aged 2–6 years.
The ZFW group had higher dietary Zn intake compared with the FW group. ZFW contributed 36 and 31 % of daily requirements for absorbable Zn in children aged 2–3 and 4–6 years, respectively, in the ZFW group. Consumption of Zn-fortified water resulted in lower prevalence of reported illness (risk ratio; 95 % CI) in the ZFW group compared with the FW group: for cold with runny nose (0·91; 0·83, 0·99; P=0·034) and abdominal pain (0·70; 0·56, 0·89; P=0·003) in the intention-to-treat analysis and for diarrhoea (0·72; 0·53, 0·96; P=0·025) in the per-protocol analysis. We did not detect an effect of treatment on plasma Zn concentration.
Daily consumption of Zn-fortified, microbiologically treated water results in increased intake of absorbable dietary Zn and may help in preventing childhood infections in pre-school children in rural Africa.
Innovation platforms are fast becoming part of the mantra of agricultural research for development projects and programmes. Their basic tenet is that stakeholders depend on one another to achieve agricultural development outcomes, and hence need a space where they can learn, negotiate and coordinate to overcome challenges and capture opportunities through a facilitated innovation process. Although much has been written on how to implement and facilitate innovation platforms efficiently, few studies support ex-ante appraisal of when and for what purpose innovation platforms provide an appropriate mechanism for achieving development outcomes, and what kinds of human and financial resource investments and enabling environments are required. Without these insights, innovation platforms run the risk of being promoted as a panacea for all problems in the agricultural sector. This study makes clear that not all constraints will require innovation platforms and, if there is a simpler and cheaper alternative, that should be considered first. Based on the review of critical design principles and plausible outcomes of innovation platforms, this study provides a decision support tool for research, development and funding agencies that can enhance more critical thinking about the purposes and conditions under which innovation platforms can contribute to achieving agricultural development outcomes.
OBJECTIVES/SPECIFIC AIMS: Describe (1) the components of the research navigation service and consultation/onboarding program, (2) use and adoption of the services, and (3) the overall satisfaction from the research community. METHODS/STUDY POPULATION: Duke offers 2 programs to support researchers: Research Navigation and Researcher Onboarding. The services aim to connect researchers to resources, offices, funding opportunities, and other collaborators. The general Research Navigation Service is an on-demand “hotline,” where navigators answer questions from researchers across the institution, helping them understand processes, best practices, and how to locate resources or potential collaborators. Navigators can be reached via the myRESEARCHhome portal, email, or by phone. The researcher onboarding program is a free 1:1 consultative service, focused on the researcher’s individual portfolio, stage of career, and immediate plans in the research arena. The goal is to equip researchers “from the start” to be successful. Researchers are identified via the new faculty hire list, or by referral. Both services are provided by the myRESEARCHnavigators team, who are trained in a variety of research areas, from basic to clinical to social sciences, and are familiar with Duke. RESULTS/ANTICIPATED RESULTS: Use of both services has increased substantially over the year. Of the almost 200 faculty members hired into the School of Medicine in 2017, ~75% have taken part in the onboarding program, and 91% have rated the service as 5-stars. The content of the sessions will be described. The Research Navigation service has fielded hundreds of calls since its inception, with topics including Equipment and Facilities (55 requests), Study start up (44 requests), Innovation and Technology (15 requests), and Regulation and Policy (25 requests). Categorization of requests, users of the services, and other information about the programs will be described. DISCUSSION/SIGNIFICANCE OF IMPACT: The navigation and onboarding services are proving to be a successful way to increase efficiency and understanding of processes and resources across the institution. Feedback from the users, coupled with high referral rates to the programs, suggests that the program is helping researchers feel better equipped with regard to their research planning, conduct, and analysis.
OBJECTIVES/SPECIFIC AIMS: Objectives/goals: Describe the process used to develop leveled competencies and associated examples. Discuss the final leveled competencies and their potential use in clinical research professional workforce initiatives. METHODS/STUDY POPULATION: The revised JTFCTC Framework 2.0 has 51 competency statements, representing 8 domains. Each competency statement has now been refined to delineate fundamental, skilled or advanced levels of knowledge and capability. Typically, the fundamental level describes the competency for a professional that requires some coaching and oversight, but is able to understand and identify basic concepts. The skilled level of the competency reflects the professional’s solid understanding of the competency and use of the information to take action independently in most situations. The advanced level embodies high level thinking, problem solving, and the ability to guide others in the competency. The process for developing both the three levels and examples involved 5 workgroups, each chaired by a content expert and comprising of national/international clinical research experts, including representatives from research sites, professional associations, government, and industry and academic sponsors. RESULTS/ANTICIPATED RESULTS: The committee developed 51 specific competencies arrayed across 3 levels and examples of each to demonstrate an appropriate application of the competency. The competencies and examples, and potential utilization, will be described. DISCUSSION/SIGNIFICANCE OF IMPACT: The use of competencies in the context of workforce development and training initiatives is helping to create standards for the clinical research profession. These leveled competencies allow for an important refinement to the standards that can be used to enhance the quality and safety of the clinical research enterprise and guide workforce development.