bluuebunny/crossref_metadata_2025_split huggingface dataset:
A hypoplastic model for granular soils incorporating anisotropic critical state theory
Authors: Yang Zhongxuan , Liao Dong , Xu Tingting 
Published: January 2020

SummaryIt is well known that soil is inherently anisotropic and its mechanical behavior is significantly influenced by its fabric anisotropy. Hypoplasticity is increasingly being accepted in the constitutive modeling for soils, in which many salient features, such as nonlinear stress‐strain relations, dilatancy, and critical state failure, can be described by a single tensorial equation. However, within the framework of hypoplasticity, modeling fabric anisotropy remains challenging, as the fabric and its evolution are often vaguely assumed without a sound basis. This paper presents a hypoplastic constitutive model for granular soils based on the newly developed anisotropic critical state theory, in which the conditions of fabric anisotropy are concurrently satisfied along with the traditional conditions at the critical state. A deviatoric fabric tensor is introduced into the Gudehus‐Bauer hypoplastic model, and a scalar‐valued anisotropic state variable signifying the interplay between the fabric and the stress state is used to characterize its impact on the dilatancy and strength of the soils. In addition, fabric evolution during shearing can explicitly be addressed. Modifications have also been undertaken to improve the performance of the undrained response of the model. The anisotropic hypoplastic model can simulate experimental tests for sand under various combinations of principle stress direction, intermediate principal stress (or mode of shearing), soil densities, and confining pressures, and the associated drastic effect of different principal stress orientations in reference to the material axes of anisotropy can be well captured.
Assessment of ATR‐NIR and ATR‐MIR spectroscopy as an analytical tool for the quantification of the total polyphenols in Dendrobium huoshanense
Authors: Hao Jing‐Wen , Chen Yue , Chen Nai‐Dong 
Published: January 2020

AbstractIn this study, the potentiality of applying attenuated total reflectance near‐infrared (ATR‐NIR) and attenuated total reflectance mid‐infrared (ATR‐MIR) techniques combined with a partial least squares (PLS) regression technology to quantify the total polyphenols (TPs) in Dendrobium huoshanense (DHS) was investigated and compared. The real TP contents in the DHS samples were analysed using methods of reference. The capability of the two IR spectroscopic techniques to quantify the TPs in DHS was assessed by the root‐mean‐square error of calibration (RMSEC) and determination coefficients (R2). The results showed that both NIR and MIR might be used as a fast and simple tool to replace traditional chemical assays for the determination of the TP contents in DHS, and the best NIR model showed slightly better prediction performance [root‐mean‐square error of prediction (RMSEP): 0.307, R2: 0.9122, ratio performance deviation (RPD): 4.43] than the best MIR model (RMSEP: 0.440, R2: 0.9069, RPD: 3.09). Results from this study indicated that both the NIR and MIR models could be used to quantify the TP in DHS, and ATR‐NIR appeared to be the more predominant and more robust technique for the quantification of the TP in DHS.
Dual‐functional, aromatic, epoxy‐methacrylate monomers from bio‐based feedstocks and their respective epoxy‐functional thermoplastics
Authors: Bassett Alexander W. , Sweet Kayla R. , O'Dea Robert M. , Honnig Amy E. , Breyta Claire M. , Reilly Julia H. , La Scala John J. , Epps Thomas H. , Stanzione Joseph F. 
Published: January 2020

ABSTRACTDual‐functional monomers consist of two distinctly different functional groups that enable chemical versatility. The most readily available epoxy‐methacrylate dual‐functional monomer is glycidyl methacrylate (GMA). In an effort to produce bio‐based, aromatic complements to GMA, asymmetric phenolic diols (vanillyl alcohol, syringyl alcohol, gastrodigenin, and tyrosol) were identified and selectively epoxidized at the aromatic hydroxyl followed by subsequent esterification at the aliphatic hydroxyl to prepare dual functional monomers, vanillyl alcohol epoxy‐methacrylate (VAEM), syringyl alcohol epoxy‐methacrylate (SAEM), gastrodigenin epoxy‐methacrylate (GDEM), and tyrosol epoxy‐methacrylate (TEM). These monomers are viable platforms for a multitude of applications due to their unique chemical functionalities. VAEM, SAEM, GDEM, and TEM were homopolymerized individually to produce aromatic, bio‐based epoxy‐functional thermoplastics analogous to poly(GMA). The molecular weight distributions and thermal properties of each polymer were evaluated, as were the surface characteristics of flow‐coated thin films from these polymers. Most of the newly prepared epoxy‐functional thermoplastics exhibited increased thermal stability (initial decomposition temperatures >260 °C in air) relative to poly(GMA), while retaining similar glass transition temperatures (~ 65 °C) and surface energies (~ 53 mJ m−2); thus, these materials could be substituted for poly(GMA) and enable use in higher‐temperature applications. © 2020 Wiley Periodicals, Inc. J. Polym. Sci. 2020, 58, 673–682
Antifungal activities of silver and selenium nanoparticles stabilized with different surface coating agents
Authors: Vrandečić Karolina , Ćosić Jasenka , Ilić Jelena , Ravnjak Boris , Selmani Atiđa , Galić Emerik , Pem Barbara , Barbir Rinea , Vinković Vrček Ivana , Vinković Tomislav 
Published: January 2020

AbstractBACKGROUNDExtensive and growing use of different chemical pesticides that affect both the environment and human health raises a need for new and more suitable methods to deal with plant pathogens. Nanotechnology has enabled the use of materials at the nanoscale with exceptional functionality in different economic domains including agricultural production.This study aimed to evaluate antifungal potential of selenium nanoparticles (SeNPs) and silver nanoparticles (AgNPs) stabilized with different surface coatings and characterized by different surface charge on plant pathogenic fungi Macrophomina phaseolina, Sclerotinia sclerotiorum and Diaporthe longicolla.RESULTSAgNPs were coated with three different stabilizing agents: mono citrate (MC‐AgNPs), cetyltrimethyl ammonium bromide (CTAB‐AgNPs) and polyvinylpyrrolidon (PVP‐AgNPs). SeNPs were coated with poly‐l‐lysine (PLL‐SeNPs), polyacrylic acid (PAA‐SeNPs), and polyvinylpyrrolidon (PVP‐SeNPs). Seven different concentrations (0.1, 0.5, 1, 5, 10, 50 and 100 mg L−1) of nanoparticles were applied. All AgNPs and SeNPs significantly inhibited the growth of the tested fungi. Among the tested NPs, PVP‐AgNPs showed the best inhibitory effect on the tested plant pathogenic fungi, especially against S. sclerotiorum. The similar inhibition of the sclerotia formation was observed for S. sclerotiorum treated with PLL‐SeNPs.CONCLUSIONObtained results provides new insights on fungicide effect of AgNPs and SeNPs stabilized with different coating agents on different plant pathogens. Further work should focus on detailed risk/benefit ratio assessment of using SeNPs or AgNPs in agriculture taking into account whole agroecosystem. © 2020 Society of Chemical Industry
Directed energy system technology for the control of soilborne fungal pathogens and plant‐parasitic nematodes
Authors: Riga Ekaterini , Crisp Jason D , McComb Gordon J , Weiland Jerry E , Zasada Inga A 
Published: January 2020

AbstractBACKGROUNDIt is challenging to manage soilborne pathogens and plant‐parasitic nematodes using sustainable practices. Here, we evaluated a novel energy application system, Directed Energy System (DES). This system generates pulses of energy capable of impacting selected biological organisms. The oomycete Phytophthora cinnamomi, the fungus Verticillium dahliae, and the plant‐parasitic nematodes Meloidogyne hapla and Globodera ellingtonae were added to soil. Then DES‐generated energy was applied to soil and impacts on target organisms were determined.RESULTSDES applied at 20, 40 and 70 J cm−3 to P. cinnamomi and V. dahliae resulted in ≥50% and 92% reductions (respectively) of propagules per gram of soil in comparison to the untreated control. There was a significant reduction of M. hapla eggs per gram of host tomato root between the untreated control, and 2.2, 13 and 25 J cm−3 DES dosages applied pre‐ or post‐planting. Additionally, an 84% reduction in hatch from G. ellingtonae encysted eggs after treatment with 70 J cm−3 DES was observed. The dosages ranged from 40 or 80V mm−1 for nematodes to 200 V mm−1 for fungi.CONCLUSIONDES‐generated energy reduced survival of the soilborne pathogens P. cinnamomi and V. dahlia, and the plant‐parasitic nematodes M. hapla and G. ellingtonae. The application of this technology to a field setting remains to be considered. Published 2020. This article is a U.S. Government work and is in the public domain in the USA. Pest Management Science published by Wiley Periodicals, Inc. on behalf of © 2020 Society of Chemical Industry.
A control chart for monitoring the lognormal process variation using repetitive sampling
Authors: Shaheen Uzma , Azam Muhammad , Aslam Muhammad 
Published: January 2020

AbstractControl charts are developed to make the specific quality measures for a successful production process and follow normal distribution behaviors. But some real‐life practices do not match such practices and exhibit some positively skewed behavior like lognormal distribution. The present study has considered this situation and proposed a monitoring control chart based on lognormal process variation using a repetitive sampling scheme. This concept proved better for detecting shifts as quickly as possible, and compared with the existing concept, results are elaborated through extensive tables. The average run lengths and standard deviations of the run lengths are being used as a performance evaluation measures and computed by using Monte Carlo simulations performed in R language. A real‐life situation has been discussed in the example section to strengthen the proposed control chart concept in a real‐life situation.
Positive psychology intervention for couples: A pilot study
Authors: Antoine Pascal , Andreotti Eva , Congard Anne 
Published: January 2020

AbstractIn this randomized study, a multicomponent, theory‐driven, autonomous self‐help positive psychology intervention (PPI) for couples was examined. This intervention was not designed for distressed couples but rather to address autonomous couples with a good initial level of functioning who, nonetheless, wished to improve it. The objective was to assess the efficacy of the PPI on satisfaction with life, affective life, communication patterns, and dyadic adjustment in each member of the dyad. The 4‐week PPI encompassed dyadic and individual daily activities. Thirty‐eight couples were assigned to an intervention group (n = 20 couples) or a waiting list control (WLC) group (n = 18 couples). Assessments were conducted prior to and after the PPI, with an immediate post‐test and a follow‐up. Ninety‐two percent of the PPI was completed by the participants. Linear mixed models revealed improvements in positive emotions, communication patterns of mutuality, and dyadic adjustment from the pretest to the immediate post‐test in the intervention group compared with the WLC group. Effects of dyadic adjustment were maintained from pretest to 1‐month follow‐up in the intervention group. This pilot study suggests that the realization of intentional dyadic activities presents an interesting approach to contribute to individual positive emotions and dyadic functioning.
Super‐Resolution Mapping of Single Nanoparticles inside Tumor Spheroids
Authors: Liu Yongtao , Wang Fan , Lu Hongxu , Fang Guocheng , Wen Shihui , Chen Chaohao , Shan Xuchen , Xu Xiaoxue , Zhang Lin , Stenzel Martina , Jin Dayong 
Published: January 2020

AbstractCancer spheroids have structural, functional, and physiological similarities to the tumor, and have become a low‐cost in vitro model to study the physiological responses of single cells and therapeutic efficacy of drugs. However, the tiny spheroid, made of a cluster of high‐density cells, is highly scattering and absorptive, which prevents light microscopy techniques to reach the depth inside spheroids with high resolution. Here, a method is reported for super‐resolution mapping of single nanoparticles inside a spheroid. It first takes advantage of the self‐healing property of a “nondiffractive” doughnut‐shaped Bessel beam from a 980 nm diode laser as the excitation, and further employs the nonlinear response of the 800 nm emission from upconversion nanoparticles, so that both excitation and emission at the near‐infrared can experience minimal loss through the spheroid. These strategies lead to the development of a new nanoscopy modality with a resolution of 37 nm, 1/26th of the excitation wavelength. This method enables mapping of single nanoparticles located 55 µm inside a spheroid, with a resolution of 98 nm. It suggests a solution to track single nanoparticles and monitor their release of drugs in 3D multicellar environments.
Anionic Redox Chemistry as a Clue for Understanding the Structural Behavior in Layered Cathode Materials
Authors: Lee Wontae , Yun Soyeong , Li Hao , Kim Jaeyoung , Lee Hayeon , Kwon Kyeongkeun , Lee Jin Yong , Choi Young‐Min , Yoon Won‐Sub 
Published: January 2020

AbstractThe anionic redox chemistries of layered cathode materials have been in focus recently due to an intriguing phenomenon that cannot be described by the number of electrons of transition metal ions. However, even though several studies have investigated the anionic redox chemistry of layered materials in terms of the charge compensation, the relationship between the origin of the structural behavior and anionic redox chemistry in layered materials remains poorly understood. In addition, a simultaneous redox process of transition metal ions could occur through the d bands interaction. Here, it is demonstrated that the anionic redox chemistry is associated with the anisotropic structural behavior of the layered cathode materials albeit without providing additional capacities exceeding the theoretical values. These findings will provide a foundation of a new chapter in the understanding of the properties of materials.
A framework for modelling structural association amongst barriers to software outsourcing partnership formation: An interpretive structural modelling approach
Authors: Ali Sikandar , Huang Jiwei , Khan Siffat Ullah , Li Hongqi 
Published: January 2020

AbstractSoftware Outsourcing Partnership (SOP) is considered as a type of risk and reward sharing relationship between a client organisation, in the developed countries, and its overseas vendor organisation. Regardless of numerous benefits, the development of SOP still remnants in its infancy stage due to several interactive barriers. Some studies have been conducted to examine the barriers to SOP formation. However, no attempt has been reported so far to explore the multifaceted interrelationships amongst them. To bridge the gap, this study implements Interpretive Structural Model (ISM) approach to reconnoitre the interrelationships amongst the barriers in the context of SOP formation. The objective of this research paper is to develop a framework for modelling structural association amongst the barriers. To achieve the objective, we used a hybrid methodology based on systematic literature review (SLR), empirical survey, and ISM. Firstly, via SLR study, we identified 27 barriers to SOP formation. Secondly, to empirically explore the interrelationships amongst the identified barriers, a questionnaire survey was performed with 50 experts from a total of 20 different countries. Further, interrelationships amongst the barriers were identified using ISM via panel review, and their classifications were carried out via Cross‐Impact Matrix Multiplication Applied to the Classification Approach.
Existence and integral representation of solutions for plane deformations of a micropolar elastic solid with surface elasticity
Authors: Gharahi Alireza , Schiavone Peter 
Published: January 2020

AbstractWe consider a linear theory of elastic boundary reinforcement of a micropolar elastic solid subjected to plane‐strain deformations. The reinforcement consists of a thin micropolar elastic coating bonded to part of the boundary of the solid. The elastic properties of the coating incorporate both classical and micropolar bending, extension and twisting effects. Interior and exterior mixed boundary problems are formulated and analyzed using the boundary integral equation method. The boundary value problems are reduced to systems of singular integro‐differential equations to which Noether‐type theorems are shown to apply. We consider also the corresponding boundary value problems based on an alternative lower‐order shell model of the reinforcement. Finally, existence and uniqueness results are presented for the corresponding interior and exterior boundary value problems in the appropriate classical function spaces.
Anisotropic destruction of the Fermi surface in inhomogeneous holographic lattices
Authors: Iliasov Askar , Bagrov Andrey A. , Katsnelson Mikhail I. , Krikun Alexander 
Published: January 2020

Abstract
We analyze fermionic response of strongly correlated holographic matter in presence of inhomogeneous periodically modulated potential mimicking the crystal lattice. The modulation is sourced by a scalar operator that explicitly breaks the translational symmetry in one direction. We compute the fermion spectral function and show that it either exhibits a well defined Fermi surface with umklapp gaps opening on the Brillouin zone boundary at small lattice wave vector, or, when the wave vector is large, the Fermi surface is anisotropically deformed and the quasiparticles get significantly broadened in the direction of translation symmetry breaking. Making use of the ability of our model to smoothly extrapolate to the homogeneous Q-lattice like setup, we show that this novel effect is not due to the periodic modulation of the potential and Umklapp physics, but rather due to the anisotropic features of the holographic horizon. That means it encodes novel physics of strongly correlated critical systems which may be relevant for phenomenology of exotic states of electron matter.
Genetic characterization and genome-wide association mapping for dwarf bunt resistance in bread wheat accessions from the USDA National Small Grains Collection
Authors: Gordon Tyler , Wang Rui , Hole David , Bockelman Harold , Michael Bonman J. , Chen Jianli 
Published: January 2020

AbstractKey messageDwarf bunt-resistant bread wheat accessions and SNP markers associated with DB resistance identified in this study are valuable resources for characterization and deployment of DB resistance in bread wheat.AbstractDwarf bunt (DB), caused byTilletia controversaJ.G. Kühn, can significantly reduce grain yield and quality on autumn-sown wheat in regions with prolonged snow cover. DB can be managed with the use of resistant cultivars. The objectives of the present study were to characterize DB resistance in a large set of bread wheat accessions from the National Small Grains Collection and use a genome-wide association study approach to identify genetic loci associated with DB resistance. A total of 292 accessions were selected using historical DB resistance data recorded across many trials and years in the Germplasm Resources Information Network (GRIN) and re-tested for DB resistance in replicated field nurseries in Logan, UT, in 2017, 2018, and 2019. Ninety-eight accessions were resistant with DB normalized incidence ≤ 10%, and twenty-eight of these were highly resistant with DB normalized incidence ≤ 1% in both GRIN and the field nurseries. Based on the presence of marker haplotypes of the four published dwarf bunt QTL on 6DS, 6DL, 7AL, and 7DS, highly resistant accessions identified in this study may provide novel resistance and should be further evaluated. This study validated one previously identified QTL on 6DS and identified an additional locus on 6DS. These loci explained 9–15% of the observed phenotypic variation. The resistant accessions and molecular markers identified in the present study may provide valuable resources for characterization and deployment of DB resistance in bread wheat.
Therapeutic potential of ayahuasca in grief: a prospective, observational study
Authors: González Débora , Cantillo Jordi , Pérez Irene , Farré Magí , Feilding Amanda , Obiols Jordi E. , Bouso José Carlos 
Published: January 2020

Abstract
Rationale
Recent studies have assessed the therapeutic potential of ayahuasca for the treatment of depression with promising preliminary results.

Objectives
Here, we examine the course of grief over 1 year of follow-up in a bereaved sample that attended a center in Peru to participate in indigenous Shipibo ayahuasca ceremonies. We also explore the roles of experiential avoidance and decentering as mechanisms of change.

Methods
Bereaved participants who attended the ayahuasca center responded to an online survey that included the Texas Revised Inventory of Grief, Symptom Assessment-45, WHO Quality of Life-Bref, Acceptance and Action Questionnaire, and Decentering. Baseline assessment was completed by 50 individuals (T0). Of these, 39 completed the post-assessment at 15 days (T1), 31 at 3 months (T2), 29 at 6 months (T3), and 27 at 12 months (T4) after leaving the retreat. Pearson’s analysis was performed to examine the relationship between the severity of grief and mechanisms of change during the period of T0 and T1.

Results
A significant decrease in Texas Revised Inventory was observed at all time points (T1: Cohen’s d = 0.84; T2: Cohen’s d = 1.38; T3: Cohen’s d = 1.16; T4: Cohen’s d = 1.39). We found a relationship between experiential avoidance (r = 0.55; p < .01), decentering (r = − 0.47; p < .01), and a reduction in the severity of grief.

Conclusions
Our results suggest that the ceremonial use of ayahuasca has therapeutic value by reducing the severity of grief. Acceptance and decentering are both psychological processes that mediate the improvement of grief symptoms.
The discontinuous effect of pressure on twin boundary strength in MgO
Authors: van Driel J. , Schusteritsch G. , Brodholt J. P. , Dobson D. P. , Pickard C. J. 
Published: January 2020

AbstractMgO makes up about 20% of the Earth’s lower mantle; hence, its rheological behaviour is important for the dynamics and evolution of the Earth. Here, we investigate the strength of twin boundaries from 0 to 120 GPa using DFT calculations together with structure prediction methods. As expected, we find that the energy barrier and critical stress for shear-coupled migration of the 310/[001] interface vary strongly with pressure. However, what is surprising is that the twin boundary also exhibits sudden strong discontinuities in strength which can both weaken and strengthen the boundary with increasing pressure. Since twin boundary migration is a proposed mechanism for both deformation and seismic attenuation in MgO, these results may suggest that MgO can undergo sudden changes in rheology due to transitions in grain boundary structure. The multiplicity of interfaces, however, necessitates the need for further studies to examine the role that phase changes in grain boundary structure play in mediating polycrystalline plasticity in the Earth.