bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recruitment strategies and challenges: Lessons learned from a coal ash and children's health study
Authors: Odoh Chisom , Sears Clara G. , Tompkins Lindsay K. , Hagemeyer Abby N. , Pfeiffer Jack A. , Polivka Barbara J. , Sears Lonnie , Brock Guy N. , Zhang C. , Zierold Kristina M. 
Published: October 2019

AbstractThe purpose of this paper is to describe the approaches and recruitment strategies of a study focused on the impact of coal fly ash on neurobehavioral performance among children living in proximity to coal‐burning power plants. Challenges encountered with each recruitment approach are highlighted as well as solutions used to overcome those challenges and ultimately enroll children and one of their parents or guardians. To ensure participants were distributed throughout the study area, geographical information systems were used to guide recruitment and achieve the target sample size (N = 300). Several approaches were employed to recruit the number of needed participants, including “shoe leather” or door‐to‐door recruitment, placement of flyers and brochures in public spaces, mailings to targeted addresses, media announcements, and local government outreach. Since September 2015, 265 participants have been enrolled in the study using a combination of the described recruitment approaches. Even with a well‐designed plan, it is important to re‐examine strategies at every step to maximize recruitment efforts. Researcher flexibility in adapting to new strategies is vital in facilitating recruitment efforts, and the recruitment of participants in the study remains a dynamic and evolving process.
Maternal and family predictors of infant psychological development in at‐risk families: A multilevel longitudinal study
Authors: Landi Isotta , Giannotti Michele , Venuti Paola , de Falco Simona 
Published: October 2019

AbstractThe impact of different parenting‐related variables on child psychological development is widely acknowledged. However, studies about the specific influence of maternal and family dimensions on child early developmental outcomes in at‐risk dyads are still scarce. The aim of this longitudinal study was to investigate the short‐ and middle‐term effects of prenatal and postnatal family and maternal features, and child attachment, on child psychological development at 3 and 24 months in at‐risk families. Forty‐two mothers with psychological, social and/or demographic risk conditions and their first‐born infants were assessed longitudinally. Measurements of maternal personality, psychological and depressive symptoms, family socioeconomic status (SES), child–mother attachment, and infant general psychological development were collected at multiple time points, through validated questionnaires and/or mother–child observation. Maternal and family dimensions showed a significant effect on child psychological development over time. The expected detrimental role of reported maternal depressive symptoms was observed both at 3 and 24 months of child's age. Data also highlighted the negative contribution of low family SES and an unexpected positive influence of maternal personality trait of psychoticism on child psychological development at 24 months. We also found a positive association between attachment security and child developmental outcome. These findings might have relevant implications for the implementation of early prevention programs by differentiating the specific predictive role of maternal child and familial factors on child psychological development in at‐risk families.
Neonatal outcome of cases with isolated prenatal ventricular disproportion with a dominant right ventricle
Authors: Zhao Liqing , Jiao Xianting , Huang Suqiu , Wu Yurong , Chen Sun 
Published: October 2019

AbstractObjectivesIsolated prenatal ventricular disproportion with a dominant right ventricle represents a challenge in decision‐making for both physicians and pregnant women. In the current study, we sought to delineate the postnatal outcomes of these cases.MethodsThis retrospective analysis included consecutive cases of isolated ventricular disproportion identified using complete fetal echocardiography at the Fetal Heart Center of Xinhua Hospital from January 2014 to October 2017. Postnatal cardiac outcome was examined using transthoracic echocardiography within the first 6 months after birth.ResultsA total of 90 fetuses were included in the final analysis. The median gestational age (GA) at diagnosis was 29 weeks (range 24 to 36). At postnatal examination, cardiac malformations were detected in 39 cases (43.3%), including 25 (27.8%) cases of congenital cardiac septal defects, eight (8.9%) of persistent left superior vena cava, four (4.4%) of left‐sided obstructive diseases, and one (1.1%) case of coronary fistula. Nineteen cases (21.1%) with fetal cardiac malformations had significant lower GA at diagnosis (P = .01) and greater right to left ventricle ratio (1.38 vs 1.30, P = .02). Neonatal surgical intervention was not required in any of the cases.ConclusionsIsolated prenatal ventricular disproportion with a dominant right ventricle comprises minor postnatal cardiac malformations and doesn't require neonatal intervention.
Quantitative systems toxicology (QST) reproduces species differences in PF‐04895162 liver safety due to combined mitochondrial and bile acid toxicity
Authors: Generaux Grant , Lakhani Vinal V. , Yang Yuching , Nadanaciva Sashi , Qiu Luping , Riccardi Keith , Di Li , Howell Brett A. , Siler Scott Q. , Watkins Paul B. , Barton Hugh A. , Aleo Michael D. , Shoda Lisl K. M. 
Published: October 2019

AbstractMany compounds that appear promising in preclinical species, fail in human clinical trials due to safety concerns. The FDA has strongly encouraged the application of modeling in drug development to improve product safety. This study illustrates how DILIsym, a computational representation of liver injury, was able to reproduce species differences in liver toxicity due to PF‐04895162 (ICA‐105665). PF‐04895162, a drug in development for the treatment of epilepsy, was terminated after transaminase elevations were observed in healthy volunteers (NCT01691274). Liver safety concerns had not been raised in preclinical safety studies. DILIsym, which integrates in vitro data on mechanisms of hepatotoxicity with predicted in vivo liver exposure, reproduced clinical hepatotoxicity and the absence of hepatotoxicity observed in the rat. Simulated differences were multifactorial. Simulated liver exposure was greater in humans than rats. The simulated human hepatotoxicity was demonstrated to be due to the interaction between mitochondrial toxicity and bile acid transporter inhibition; elimination of either mechanism from the simulations abrogated injury. The bile acid contribution occurred despite the fact that the IC50 for bile salt export pump (BSEP) inhibition by PF‐04895162 was higher (311 µmol/L) than that has been generally thought to contribute to hepatotoxicity. Modeling even higher PF‐04895162 liver exposures than were measured in the rat safety studies aggravated mitochondrial toxicity but did not result in rat hepatotoxicity due to insufficient accumulation of cytotoxic bile acid species. This investigative study highlights the potential for combined in vitro and computational screening methods to identify latent hepatotoxic risks and paves the way for similar and prospective studies.
Relationship between the Auger parameter and the ground state valence charge of the core‐ionized atom: The case of Cu(I) and Cu (II) compounds
Authors: Moretti Giuliano , Beck Horst P. 
Published: October 2019

We develop a simple semiempirical model that correlates the Auger parameter to the ground state valence charge of the core‐ionized atom with closed shell electron configuration. Until now, the Auger parameter was employed to separate initial and final state effects that influence the core electron binding energy. The model is applied to Cu(I) and Cu (II) compounds with the Auger parameter defined as α' =EbFL(2p3/2) +EkFL(L3M45M45;1G). The Auger parameter shift for Cu(I) ion in CuI, CuBr, CuFeS2, Cu2S, and Cu2O compounds—with respect to the copper free atom—increases with the electronic polarizability of the nearest‐neighbour ligands suggesting anonlocalscreening mechanism. This relaxation process is interpreted as due to an electron transfer from the nearest‐neighbour ligands toward the spatially extended 4sp valence orbitals of the core‐ionized Cu(I) ion. In agreement with our model, a linear relationship is found between the Auger parameter shift and the ground state Bader valence charge obtained by density functional theory calculations.The Auger parameter shift for the Cu (II) ion in CuF2, CuCl2, CuBr2, CuSO4, Cu (NO3)2•3H2O, Cu3(PO4)2, Cu (OH)2, and CuO compounds is very close to the Auger parameter of metallic copper, and therefore, it is not related to the calculated ground state Bader valence charge. The relaxation process in the final state is dominated by thelocalscreening mechanism, which involves an electron transfer from the nearest‐neighbour ligands toward the spatially contracted 3d orbitals of the core‐ionized Cu (II) ion.
Charged Layered Boron Nitride‐Nanoflake Membranes for Efficient Ion Separation and Water Purification
Authors: Pendse Aaditya , Cetindag Semih , Lin Meng‐Hsuan , Rackovic Angelina , Debbarma Rousan , Almassi Soroush , Chaplin Brian P. , Berry Vikas , Shan Jerry W. , Kim Sangil 
Published: October 2019

Abstract2D layered nanomaterials have attracted considerable attention for their potential for highly efficient separations, among other applications. Here, a 2D lamellar membrane synthesized using hexagonal boron nitride nanoflakes (h‐BNF) for highly efficient ion separation is reported. The ion‐rejection performance and the water permeance of the membrane as a function of the ionic radius, ion valance, and solution pH are investigated. The nonfunctionalized h‐BNF membranes show excellent ion rejection for small sized salt ions as well as for anionic dyes (>97%) while maintaining a high water permeability, ≈1.0 × 10−3 L m m−2 h−1 bar−1). Experiments show that the ion‐rejection performance of the membrane can be tuned by changing the solution pH. The results also suggest that the rejection is influenced by the ionic size and the electrostatic repulsion between fixed negative charges on the BN surface and the mobile ions, and is consistent with the Donnan equilibrium model. These simple‐to‐fabricate h‐BNF membranes show a unique combination of excellent ion selectivity and high permeability compared to other 2D membranes.
Chiral Inorganic mesoporous materials used as the stationary phase in GC
Authors: He Yu‐Yu , Pu Qing , Zhang Jun‐Hui , Xie Sheng‐Ming , Chen Xue‐Xian , Yuan Li‐Ming 
Published: October 2019

AbstractMesoporous materials are promising functional materials due to their properties, such as a large surface area, tunable pore size, structure and morphology. Chiral mesoporous silica is an indispensable part of mesoporous materials. Considering that chirality is rare in inorganic mesoporous materials, there are very few reports on chiral inorganic mesoporous silica for chromatographic separations. In this work, we report the use of chiral inorganic mesoporous silica based on the template of myristyl chloride‐l‐valine sodium as the stationary phase for enantioselective separation in gas chromatography. Thirteen chiral compounds were resolved on a fabricated column using dynamic coating, including chiral alcohols, epoxides and amino acid derivatives. In addition, n‐alkanes, n‐alcohols and aromatic hydrocarbons have also been separated.
Schubsteifigkeit von Ständerrahmen im Hochregallagerbau
Authors: Ungermann Dieter , Schneider Stephan 
Published: October 2019

AbstractFür die Queraussteifung von Hochregallagern ist die Schubsteifigkeit der zumeist aus dünnwandigen, kaltgeformten Querschnitten gefertigten Ständerrahmen von essenzieller Bedeutung. Im Vergleich zu einem idealen Fachwerk liegt die Schubsteifigkeit der Ständerrahmen nur bei etwa 5–15 %. Geschlossene theoretische Ansätze zur realitätsnahen Bestimmung der Schubsteifigkeit existieren derzeit nicht, sodass es im Regalbau gängige Praxis ist, die Schubsteifigkeit experimentell in sogenannten Rahmenschubversuchen zu bestimmen. Dieses Vorgehen ist zeit‐ und kostenintensiv und verhindert eine gezielte Weiterentwicklung der Bauweise der Ständerrahmen, die aufgrund der stetig gestiegenen Bauhöhe von Hochregallagern zunehmend an ihre statisch‐konstruktiven Grenzen stoßen. Aus diesem Anlass ist das Forschungsvorhaben FOSTA P1078 „Schubsteifigkeit von Ständerrahmen im Hochregallagerbaű initiiert worden. Mithilfe von umfassenden experimentellen und numerischen Untersuchungen ist das Trag‐ und Verformungsverhalten der Ständerrahmen analysiert und ein Bemessungsmodell in Anlehnung an die Komponentenmethode entwickelt worden, das es erlaubt, die Schubsteifigkeit realitätsnah analytisch zu bestimmen.
The toxicological paradigms of aluminum and the etiology of Alzheimer's disease in the nematodeCaenorhabditis elegans
Authors: de Oliveira Vanessa Ecléa , Vanin Ana Paula , Concato Ani Carla , Tamagno Wagner A. , Treichel Helen , Kaizer Rosilene R. 
Published: October 2019

AbstractThis study examined behavioral and enzymatic changes ofC. elegansfrom its exposure to aluminum, and the resulting relationship with Alzheimer's disease. After chronic and acute exposure to aluminum, the results indicated that it alters the cholinergic status and behavior parameters of the nematode, suggesting a relationship between exposure to aluminum and the etiology of AD.
Jute bioblanket as a soil rehabilitation strategy in Sorocaba, Brazil: Soil chemistry and SWOT approaches
Authors: da Silva Alexandre Marco , Tsuchiya Lucas Hubacek , Mendes Pablo Bettio , de Camargo e Timo Thiago Philipe , Cerdà Artemio 
Published: October 2019

AbstractSoil erosion and the invasion of exotic plant species are major constraints to achieve sustainable development around the world. Currently, we find few products devoted concomitantly to combatting soil erosion as well as the establishment of unwanted exotic plants. In this paper, we introduce a new product, called herein a bioblanket, that protects the soil and impedes the establishment of exotic plant species. This product is of simple design, and to manufacture it, we use two biodegradable materials: jute tissue and grass wastes. We designed this product to combat soil erosion and the germination and establishment of new, unwanted, invasive plant species. In this paper, we describe our evaluation of how successful this product was in terms of improving the chemical attributes of soil. We also identified the product's potentialities and weaknesses by means of strengths, weaknesses, opportunities, and threats (SWOT) analysis. The bioblanket ameliorated the chemical attributes of the soil, as evidenced especially by the neutralization of acidity (8.5%) and aluminum toxicity (33%), and by an increment in nutrients concentration. We argue that after adequate treatment and management, the residues of plants that are normally considered unwanted materials can be transformed into a raw material to control the propagation of unwanted plant species, and concomitantly control soil erosion while improving the chemical conditions of the soil. The improvement of the soil chemical attributes was one of the main positive effects reported through the SWOT analysis. In addition, the SWOT analysis revealed some features that need improvement in future generations of the product, but we argue that these features do not impede the benefits for the use of the product in its present form.
Mating quadratic maps with the modular group II
Authors: Bullett Shaun , Lomonaco Luna 
Published: October 2019

Abstract
In 1994 S. Bullett and C. Penrose introduced the one complex parameter family of (2 : 2) holomorphic correspondences $$\mathcal {F}_a$$Fa: $$\begin{aligned} \left( \frac{aw-1}{w-1}\right) ^2+\left( \frac{aw-1}{w-1}\right) \left( \frac{az+1}{z+1}\right) +\left( \frac{az+1}{z+1}\right) ^2=3 \end{aligned}$$aw-1w-12+aw-1w-1az+1z+1+az+1z+12=3and proved that for every value of $$a \in [4,7] \subset \mathbb {R}$$a∈[4,7]⊂R the correspondence $$\mathcal {F}_a$$Fa is a mating between a quadratic polynomial $$Q_c(z)=z^2+c,\,\,c \in \mathbb {R}$$Qc(z)=z2+c,c∈R, and the modular group $$\varGamma =PSL(2,\mathbb {Z})$$Γ=PSL(2,Z). They conjectured that this is the case for every member of the family $$\mathcal {F}_a$$Fa which has a in the connectedness locus. We show here that matings between the modular group and rational maps in the parabolic quadratic family $$Per_1(1)$$Per1(1) provide a better model: we prove that every member of the family $$\mathcal {F}_a$$Fa which has a in the connectedness locus is such a mating.
Risk Factors for Parental Burnout among Finnish Parents: The Role of Socially Prescribed Perfectionism
Authors: Sorkkila Matilda , Aunola Kaisa 
Published: October 2019

AbstractObjectivesAlthough parental burnout can have detrimental consequences to families, the investigation of the syndrome is still in its infancy. The present study investigated what are the key family background variables that contribute to parental burnout among Finnish parents. Moreover, we investigated how self-oriented and socially prescribed perfectionism uniquely and interactively relate to parental burnout over and above the impacts of background variables.MethodsQuestionnaire-based data was collected from 1725 parents (91% mothers) and analyzed using structural equation modeling (SEM).ResultsThe results showed that when several family- and child-related background variables were taken into account, parent’s age, unemployment, perceived poor financial situation of the family, and having a child with special needs, showed unique associations with burning out as a parent. Even more crucial risk factor for burning out was, however, socially prescribed perfectionism: the higher the level of socially prescribed perfectionism the parents reported, the higher the level of their parental burnout. The relationship between socially prescribed perfectionism and parental burnout was further strengthened when parents reported also a high level of self-oriented perfectionism. Finally, the relationship between gender and parental burnout was mediated via perfectionism: mothers reported more socially prescribed and self-oriented perfectionism than fathers and, consequently, were also more burned out as parents.ConclusionsThe results suggest that in Finland specific attention should be given to families with poor financial resources and unemployment. Moreover, high social expectations experienced by the mothers could be balanced, for example, by teaching them skills of self-acceptance and compassion.
Frege and the origins of model theory in nineteenth century geometry
Authors: Eder Günther 
Published: October 2019

AbstractThe aim of this article is to contribute to a better understanding of Frege’s views on semantics and metatheory by looking at his take on several themes in nineteenth century geometry that were significant for the development of modern model-theoretic semantics. I will focus on three issues in which a central semantic idea, the idea of reinterpreting non-logical terms, gradually came to play a substantial role: the introduction of elements at infinity in projective geometry; the study of transfer principles, especially the principle of duality; and the use of counterexamples in independence arguments. Based on a discussion of these issues and how nineteenth century geometers reflected about them, I will then look into Frege’s take on these matters. I conclude with a discussion of Frege’s views and what they entail for the debate about his stance towards semantics and metatheory more generally.
Sophisticated collective foraging with minimalist agents: a swarm robotics test
Authors: Talamali Mohamed S. , Bose Thomas , Haire Matthew , Xu Xu , Marshall James A. R. , Reina Andreagiovanni 
Published: October 2019

AbstractHow groups of cooperative foragers can achieve efficient and robust collective foraging is of interest both to biologists studying social insects and engineers designing swarm robotics systems. Of particular interest are distance-quality trade-offs and swarm-size-dependent foraging strategies. Here, we present a collective foraging system based on virtual pheromones, tested in simulation and in swarms of up to 200 physical robots. Our individual agent controllers are highly simplified, as they are based on binary pheromone sensors. Despite being simple, our individual controllers are able to reproduce classical foraging experiments conducted with more capable real ants that sense pheromone concentration and follow its gradient. One key feature of our controllers is a control parameter which balances the trade-off between distance selectivity and quality selectivity of individual foragers. We construct an optimal foraging theory model that accounts for distance and quality of resources, as well as overcrowding, and predicts a swarm-size-dependent strategy. We test swarms implementing our controllers against our optimality model and find that, for moderate swarm sizes, they can be parameterised to approximate the optimal foraging strategy. This study demonstrates the sufficiency of simple individual agent rules to generate sophisticated collective foraging behaviour.
Swelling-induced twisting and shearing in fiber composites: the effect of the base matrix mechanical response
Authors: Demirkoparan Hasan , Pence Thomas J. 
Published: October 2019

Abstract
If a helical network of fibers is embedded in a swellable matrix, and if the fibers themselves resist swelling, then a change in the amount of swelling agent will cause a corresponding twisting motion in the material. This effect has recently been analyzed in highly deformable soft material tubes using the theory of hyperelasticity, suitably modified to incorporate the swelling effect. Those studies examined the effect of spiral angle and fiber-to-matrix inherent stiffness in the context of a ground state matrix material that exhibited classical neo-Hookean behavior in the absence of swelling. While such a ground state material is nonlinear in general, its shear response is linear. As we describe here, it is this shear response that governs the matrix contribution to the twist-swelling interaction. Because gels, elastomers, and even biological tissue can exhibit complex ground state behavior in shear—behavior that may depart significantly from a linear response—we then examine the effect of alternative ground state behaviors on the twist-swelling interaction. The range of behaviors considered includes materials that harden in shear, materials that soften in shear, materials that have an ultimate shear stress bound, and materials that collapse in shear. Matrix materials that either soften or collapse in shear are found to amplify the twisting effect.