bluuebunny/crossref_metadata_2025_split huggingface dataset:
Creating a Workplace Culture of Preventive Health: Process and Outcomes of the Colon Cancer–Free Zone at Virginia Cooperative Extension
Authors: Rafie Carlin L. , Hauser Lindsay , Michos John , Pinsky Jeffrey 
Published: July 2019

AbstractColorectal cancer is the third leading cause of cancer death in the USA, yet is highly preventable and detectable at an early stage through screening. Virginia Cooperative Extension (VCE) implemented a worksite colon cancer awareness program to increase colorectal cancer screening rates and preventive lifestyle behaviors among its employees. The Colon Cancer–Free Zone program is designed using best practice principles of worksite health programs and includes information sessions covering the topics of colorectal cancer, screening guidelines, insurance coverage, and preventive lifestyle behaviors. It is conducted in a campaign format that includes a strategic communication strategy targeting relevant screening barriers and facilitators, peer champions, and incentives. The program was implemented with VCE employees statewide utilizing a web-based system for the information sessions, and resulted in broad participation, a significant increase in screening self-efficacy (4.15 ± 0.64 vs 3.81 ± 0.76, ρ = 0.006), changes in diet and physical activity (50% and 40% of participants, respectively), and a 20.6% increase in the employee colorectal cancer screening rate. A Colon Cancer–Free Zone toolkit was developed for use by Extension Agents to implement the program at worksites in their service communities.
Lessons Learned from a Medical Response Team 45 Days Post Hurricane Maria in Puerto Rico
Authors: Gordon Jessica M. , Orriola Deidre , Unangst Mary , Gordon Federico , Vellon Yazmin E. Rodriguez 
Published: July 2019

ABSTRACTObjective:Describe the lived experience of a grassroots, non-governmental disaster medical team (DMT) through a research lens and share practical lessons learned, based on the DMT’s experience to support and inform future response teams.Methods:Forty-five days after Hurricane Maria, a non-governmental DMT provided primary medical care via community based pop-up clinics and home visitations in 5 different areas of Puerto Rico. Observational data, photo images, and debriefing notes were collected and documented in the response team’s daily activity log. Field notes were coded using a descriptive coding method and then categorized into 2 domains specific to public health and medical diagnosis.Results:Medical aid was provided to nearly 300 (N = 296) residents. Field note observations identified exhaustion related to living conditions and the exacerbation of underlying conditions such as reactive airway diseases, diabetes, hypertension, and depression due to the compounding effects of multiple post-disaster triggers. During home visitations, feelings of sadness and helplessness were identified secondary to natural disaster trauma and current living conditions.Conclusion:Our non-governmental DMT displayed similar characteristics demonstrated by federal DMTs post natural disaster. A number of strategic lessons learned emerged from the public health intervention important to future non-governmental DMTs.
Film thickness distribution in gravity-driven pancake-shaped droplets rising in a Hele-Shaw cell
Authors: Shukla Isha , Kofman Nicolas , Balestra Gioele , Zhu Lailai , Gallaire François 
Published: July 2019

We study here experimentally, numerically and using a lubrication approach, the shape, velocity and lubrication film thickness distribution of a droplet rising in a vertical Hele-Shaw cell. The droplet is surrounded by a stationary immiscible fluid and moves purely due to buoyancy. A low density difference between the two media helps to operate in a regime with capillary number $Ca$ lying between $0.03$ and $0.35$, where $Ca=\unicode[STIX]{x1D707}_{o}U_{d}/\unicode[STIX]{x1D6FE}$ is built with the surrounding oil viscosity $\unicode[STIX]{x1D707}_{o}$, the droplet velocity $U_{d}$ and surface tension $\unicode[STIX]{x1D6FE}$. The experimental data show that in this regime the droplet velocity is not influenced by the thickness of the thin lubricating film and the dynamic meniscus. For iso-viscous cases, experimental and three-dimensional numerical results of the film thickness distribution agree well with each other. The mean film thickness is well captured by the Aussillous & Quéré (Phys. Fluids, vol. 12 (10), 2000, pp. 2367–2371) model with fitting parameters. The droplet also exhibits the ‘catamaran’ shape that has been identified experimentally for a pressure-driven counterpart (Huerre et al., Phys. Rev. Lett., vol. 115 (6), 2015, 064501). This pattern has been rationalized using a two-dimensional lubrication equation. In particular, we show that this peculiar film thickness distribution is intrinsically related to the anisotropy of the fluxes induced by the droplet’s motion.
A numerical investigation of fluid flows induced by the oscillations of thin plates and evaluation of the associated hydrodynamic forces
Authors: Nuriev Artem N. , Kamalutdinov Airat M. , Egorov Andrey G. 
Published: July 2019

The paper is devoted to the problem of harmonic oscillations of thin plates in a viscous incompressible fluid. The two-dimensional flows caused by the plate oscillations and their hydrodynamic influence on the plates are studied. The fluid motion is described by the non-stationary Navier–Stokes equations, which are solved numerically on the basis of the finite volume method. The simulation is carried out for plates with different thicknesses and shapes of edges in a wide range of control parameters of the oscillatory process: dimensionless frequency and amplitude of oscillations. For the first time in the framework of one model all two-dimensional flow regimes, which were found earlier in experimental studies, are described. Two new flow regimes emerging along the stability boundaries of symmetric flow regimes are localized. The map of flow regimes in the frequency–amplitude plane is constructed. The analysis of the hydrodynamic influence of flows on the plates allow us to establish new effects associated with the influence of the shape of the plates on the drag and inertia forces. Due to these effects, the values of hydrodynamic forces can differ by 90 % at the same parameters of the oscillation. The lower and upper estimates of hydrodynamic forces obtained in the work have a good agreement with the experimental data presented in the literature.
The effect of turbulence on mass transfer rates between inertial polydisperse particles and fluid
Authors: Karchniwy Ewa , Klimanek Adam , Haugen Nils Erland L. 
Published: July 2019

The current work investigates how turbulence affects the mass transfer rate between inertial particles and fluid in a dilute, polydisperse particle system. Direct numerical simulations are performed in which all scales of turbulence are fully resolved and particles are represented in a Lagrangian reference frame. The results show that, similarly to a monodisperse system, the mass transfer rate between particles and fluid decreases as a result of particle clustering. This occurs when the flow time scale (based on the turbulence integral scale) is long relative to the chemical time scale, and is strongest when the particle time scale is one order of magnitude smaller than the flow time scale (i.e. the Stokes number is around 0.1). It is also found that for larger solid mass fractions, the clustering of the heavier particles is enhanced by the effect of drag force from the particles on the fluid (momentum back-reactions or two-way coupling). In particular, when two-way coupling is accounted for, locations of particles of different sizes are much more correlated, which leads to a stronger effect of clustering, and thus a greater reduction of the particle–fluid mass transfer rate.
Constitutive equations with pressure-dependent rheological parameters for describing ice creep
Authors: ARCANGIOLI MARTINA , FARINA ANGIOLO , FUSI LORENZO , SACCOMANDI GIUSEPPE 
Published: July 2019

ABSTRACTExperimental data from creep tests on polycrystalline ice samples highlight not only the non-Newtonian behavior of ice but also suggest a critical dependence of the various rheological parameters upon the applied hydrostatic pressure. We propose a new modeling framework, based on implicit theories of continuum mechanics, that generalizes two well-known constitutive models by taking into account the effect of the pressure in the description of ice in creep. To ascertain the validity of the proposed models, we fit the physical parameters with experimental data for the elongational flow of ice samples. The results show good agreement with the experimental creep curves. In particular, the proposed generalized models reproduce the increase of the creep rate due to the presence of hydrostatic pressure.
Prevalence and risk factors of Strongyloides stercoralis infection among Orang Asli schoolchildren: new insights into the epidemiology, transmission and diagnosis of strongyloidiasis in Malaysia
Authors: Al-Mekhlafi Hesham M. , Nasr Nabil A. , Lim Yvonne A. L. , Elyana Fatin Nur , Sady Hany , Atroosh Wahib M. , Dawaki Salwa , Anuar Tengku Shahrul , Noordin Rahmah , Mahmud Rohela 
Published: July 2019

AbstractThis cross-sectional study aimed to determine the prevalence and risk factors of S. stercoralis infection among 1142 Orang Asli primary schoolchildren in six different states of Peninsular Malaysia. Fecal samples were examined using direct smear, formalin-ether sedimentation (FES), agar plate culture (APC) and PCR techniques. Overall, 15.8% of the children were found to be infected with S. stercoralis. The prevalence was 0.2, 1.3, 15.2 and 13.7% by direct smear, FES, APC and PCR, respectively. Multivariate analysis showed that an age of >10 years, being male, belonging to a Proto-Malay tribe, belonging to the Senoi tribe, indiscriminate defecation, using an unimproved water source for drinking water and not wearing shoes when outside were the significant risk factors of infection among these children. In conclusion, we provide new evidence on the occurrence of S. stercoralis in Malaysia to show that there is a relatively high prevalence of infection among Orang Asli schoolchildren. Therefore, the use of specific methods for detecting S. stercoralis should be considered when screening these children for intestinal parasites. Moreover, prevention and control measures specific to S. stercoralis should be integrated into the intestinal parasitic infections control programme in Malaysia.
Neurotropic enteroviruses co-opt “fair-weather-friend” commensal gut microbiota to drive host infection and central nervous system disturbances
Authors: Clark Kevin B. 
Published: July 2019

Abstract
Some neurotropic enteroviruses hijack Trojan horse/raft commensal gut bacteria to render devastating biomimicking cryptic attacks on human/animal hosts. Such virus-microbe interactions manipulate hosts’ gut-brain axes with accompanying infection-cycle-optimizing central nervous system (CNS) disturbances, including severe neurodevelopmental, neuromotor, and neuropsychiatric conditions. Co-opted bacteria thus indirectly influence host health, development, behavior, and mind as possible “fair-weather-friend” symbionts, switching from commensal to context-dependent pathogen-like strategies benefiting gut-bacteria fitness.
Neuropeptide-like signaling in the microbiota-gut-brain axis
Authors: Fetissov Sergueï O. 
Published: July 2019

Abstract
For gut microbiota to influence behavior, microorganisms should be able to interfere with specific brain neurochemical circuitries. Understanding these molecular mechanisms is a key task in the new microbiota-gut-brain field. Recent studies have revealed that one major mechanistic link is the modulation of neuropeptide signaling by homologous bacterial proteins acting both directly and indirectly via production of neuropeptide-reactive immunoglobulins.
Practical guidelines for gut microbiome analysis in microbiota-gut-brain axis research
Authors: Valles-Colomer Mireia , Falony Gwen , Vieira-Silva Sara , Raes Jeroen 
Published: July 2019

AbstractThe microbiota-gut-brain (MGB) axis field is at an exciting stage, but the most recent developments in microbiota research still have to find their way into MGB studies. Here we outline the standards for microbiome data generation, the appropriate statistical techniques, and the covariates that should be included in MGB studies to optimize discovery and translation to clinical applications.
Causal clarity and deeper dimensions in microbiota-gut-brain research
Authors: Hooks Katarzyna B. , Konsman Jan Pieter , O'Malley Maureen A. 
Published: July 2019

AbstractOur analysis of microbiota-gut-brain (MGB) research took MGB to task for some of its methods, concepts, and interpretations. Commentators then raised numerous issues about the neuroscientific and microbiome aspects of MGB and how it can be understood as a field. We respond by addressing the dimensionality (scope and depth) and causal focus of MGB.
The role of one-carbon metabolism and homocysteine in Parkinson’s disease onset, pathology and mechanisms
Authors: Murray Lauren K. , Jadavji Nafisa M. 
Published: July 2019

AbstractParkinson’s disease (PD) is the second most common neurodegenerative disorder. It is characterised by the progressive degeneration of dopaminergic (DA) neurons. The cause of degeneration is not well understood; however, both genetics and environmental factors, such as nutrition, have been implicated in the disease process. Deficiencies in one-carbon metabolism in particular have been associated with increased risk for PD onset and progression, though the precise relationship is unclear. The aim of the present review is to determine the role of one-carbon metabolism and elevated levels of homocysteine in PD onset and pathology and to identify potential mechanisms involved. A search of PubMed, Google Scholar and Web of Science was undertaken to identify relevant human and animal studies. Case–control, prospective cohort studies, meta-analyses and non-randomised trials were included in the present review. The results from human studies indicate that polymorphisms in one-carbon metabolism may increase risk for PD development. There is an unclear role for dietary B-vitamin intake on PD onset and progression. However, dietary supplementation with B-vitamins may be beneficial for PD-affected individuals, particularly those onl-DOPA (levodopa orl-3,4-dihydroxyphenylalanine) treatment. Additionally, one-carbon metabolism generates methyl groups, and methylation capacity in PD-affected individuals is reduced. This reduced capacity has an impact on expression of disease-specific genes that may be involved in PD progression. During B-vitamin deficiency, animal studies report increased vulnerability of DA cells through increased oxidative stress and altered methylation. Nutrition, especially folates and related B-vitamins, may contribute to the onset and progression of PD by making the brain more vulnerable to damage; however, further investigation is required.
Effects of a multipronged beverage intervention on young children’s beverage intake and weight: a cluster-randomized pilot study
Authors: Grummon Anna H , Cabana Michael D , Hecht Amelie A , Alkon Abbey , McCulloch Charles E , Brindis Claire D , Patel Anisha I 
Published: July 2019

AbstractObjective:To evaluate whether a multipronged pilot intervention promoting healthier beverage consumption improved at-home beverage consumption and weight status among young children.Design:In this exploratory pilot study, we randomly assigned four childcare centres to a control (delayed-intervention) condition or a 12-week intervention that promoted consumption of healthier beverages (water, unsweetened low- or non-fat milk) and discouraged consumption of less-healthy beverages (juice, sugar-sweetened beverages, high-fat or sweetened milk). The multipronged intervention was delivered via childcare centres; simultaneously targeted children, parents and childcare staff; and included environmental changes, policies and education. Outcomes were measured at baseline and immediately post-intervention and included children’s (n 154) at-home beverage consumption (assessed via parental report) and overweight/obese status (assessed via objectively measured height and weight). We estimated intervention impact using difference-in-differences models controlling for children’s demographics and classroom.Setting:Two northern California cities, USA, 2013–2014.Participants:Children aged 2–5 years and their parents.Results:Relative to control group children, intervention group children reduced their consumption of less-healthy beverages from baseline to follow-up by 5·9 ounces/d (95 % CI −11·2, −0·6) (–174·5 ml/d; 95 % CI –331·2, –17·7) and increased their consumption of healthier beverages by 3·5 ounces/d (95 % CI −2·6, 9·5) (103·5 ml/d; 95 % CI –76·9, 280·9). Children’s likelihood of being overweight decreased by 3 percentage points (pp) in the intervention group and increased by 3 pp in the control group (difference-in-differences: −6 pp; 95 % CI −15, 3).Conclusions:Our exploratory pilot study suggests that interventions focused comprehensively on encouraging healthier beverage consumption could improve children’s beverage intake and weight. Findings should be confirmed in longer, larger studies.
LYAPUNOV EXPONENTS OF THE KURAMOTO–SIVASHINSKY PDE
Authors: EDSON RUSSELL A. , BUNDER J. E. , MATTNER TRENT W. , ROBERTS A. J. 
Published: July 2019

The Kuramoto–Sivashinsky equation is a prototypical chaotic nonlinear partial differential equation (PDE) in which the size of the spatial domain plays the role of a bifurcation parameter. We investigate the changing dynamics of the Kuramoto–Sivashinsky PDE by calculating the Lyapunov spectra over a large range of domain sizes. Our comprehensive computation and analysis of the Lyapunov exponents and the associated Kaplan–Yorke dimension provides new insights into the chaotic dynamics of the Kuramoto–Sivashinsky PDE, and the transition to its one-dimensional turbulence.
INVARIANCE OF THE GERSTENHABER ALGEBRA STRUCTURE ON TATE-HOCHSCHILD COHOMOLOGY
Authors: Wang Zhengfang 
Published: July 2019

AbstractKeller proved in 1999 that the Gerstenhaber algebra structure on the Hochschild cohomology of an algebra is an invariant of the derived category. In this paper, we adapt his approach to show that the Gerstenhaber algebra structure on the Tate–Hochschild cohomology of an algebra is preserved under singular equivalences of Morita type with level, a notion introduced by the author in previous work.
Transnational society as a mirror of international society: a reinterpretation of contemporary world order
Authors: Davies Thomas 
Published: July 2019

AbstractAlthough there has been widespread attention to the apparent rise of a transnational society of cross-border non-state actors alongside the international society of states, transnational society and international society have traditionally been treated as distinctive domains with different institutions. This article, by contrast, aims to transform theorization of world order through its investigation of how actors in transnational society have developed institutions that mirror in notable respects some of the primary institutions of the international society of states such as through serving constitutive and regulative functions. In addition to delineating these institutions of transnational society, the article interrogates the interdependence of these institutions of transnational society and those of international society, as well as their differences and repercussions for world order. The analysis considers how, in conjunction with the contribution of institutions of international society to international order, institutions of transnational society contribute to transnational order. By exploring not only the tensions between but also the complementarities of transnational and interstate institutions, the article both provides a reinterpretation of contemporary world order and helps reveal the potential for its more harmonious operation.
Modeling germination of smallflower umbrella sedge (Cyperus difformisL.) seeds from rice fields in California across suboptimal temperatures
Authors: Pedroso Rafael M. , Dourado Neto Durval , Victoria Filho Ricardo , Fischer Albert J. , Al-Khatib Kassim 
Published: July 2019

AbstractSmallflower umbrella sedge is a prolific C3weed commonly found in rice fields in 47 countries. The increasing infestation of herbicide-resistant smallflower umbrella sedge populations threatens rice production. Our objectives for this study were to characterize thermal requirements for germination of smallflower umbrella sedge seeds from rice fields in California and to parameterize a population thermal-time model for smallflower umbrella sedge germination. Because the use of modeling techniques is hampered by the lack of thermal-time model parameters for smallflower umbrella sedge seed germination, trials were carried out by placing field-collected seeds in a thermogradient table set at constant temperatures of 11.7 to 41.7 C. Germination was assessed daily for 30 d, and the whole experiment was repeated a month later. Using probit regression analysis, thermal time to median germination [θT(50)], base temperature for germination (Tb), and SD of thermal times for germination [σθT(50)] were estimated from germination data, and model parameters were derived using the Solver tool in Microsoft Excel®. Germination rates increased linearly below the estimated optimum temperatures of 33.5 to 36 C. EstimatedTbaveraged 16.7 C, whereasθT(50)equaled 17.1 degree-days and σθT(50)was only 0.1 degree-day. The estimatedTbfor smallflower umbrella sedge is remarkably higher than that ofjaponicaandindicatypes of rice, as well asTbof important weeds in theEchinochloacomplex. Relative to the latter, smallflower umbrella sedge has lower thermal-time requirements to germination and greater germination synchronicity. However, it would also initiate germination much later because of its higherTb, given low soil temperatures early in the rice growing season in California. When integrated into weed growth models, these results might help optimize the timing and efficacy of smallflower umbrella sedge control measures.
Hertz‐Mindlin Theory of Contacting Grains and the Effective‐Medium Approximation for the Permeability of Deforming Porous Media
Authors: Richesson Samuel , Sahimi Muhammad 
Published: July 2019

AbstractEstimating flow and transport properties of porous media that undergo deformation as a result of applying an external pressure or stress is important to a wide variety of processes, ranging from shale formations into which a fracking liquid is injected to CO2 sequestration in geological formations. We propose a novel model for estimating the effective permeability of such porous media. Given the pore‐size distribution (PSD) of a porous medium before deformation, as well as the Young's modulus of its grains, the model uses Hertz‐Mindlin theory of contact between grains to compute the new PSD that results from applying an external pressure P to the medium and utilizes the updated PSD in the effective‐medium approximation to estimate the effective permeability at P. Comparison between the predictions and experimental data for several types of sandstones indicates excellent agreement between the two.