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Items from 61 to 80 out of 1,659,233 results

article

Machine Learning for Prediction of Posttraumatic Stress and Resilience Following Trauma: An Overview of Basic Concepts and Recent Advances

Katharina Schultebraucks, Isaac R. Galatzer‐Levy

Journal of Traumatic Stress > 32 > 2 > 215 - 225

Posttraumatic stress responses are characterized by a heterogeneity in clinical appearance and etiology. This heterogeneity impacts the field's ability to characterize, predict, and remediate maladaptive responses to trauma. Machine learning (ML) approaches are increasingly utilized to overcome this foundational problem in characterization, prediction, and treatment selection across branches of medicine...

article

Invariance of the Construct of Posttraumatic Stress Disorder: A Systematic Review

Ateka A. Contractor, Stephanie V. Caldas, Megan Dolan, Prathiba Natesan, more

Journal of Traumatic Stress > 32 > 2 > 287 - 298

We conducted a systematic review of studies that have evaluated invariance of the construct of posttraumatic stress disorder (PTSD) to summarize their conclusions related to invariance/noninvariance and sources of noninvariance. In November 2017, we searched Pubmed, PSYCINFO, PILOTS Web of Science, CINAHL, Medline, and Psychological and Behavioral Science Collection for abstracts and articles with...

article

Contributions of climate, plant phenology and natural enemies to the seasonal variation of aphids on cabbage

Elisangela G. Fidelis, Elizeu S. Farias, Mayara C. Lopes, Fernanda F. Sousa, more

Journal of Applied Entomology > 143 > 4 > 365 - 370

Brevicoryne brassicae (L), Lipaphis erysimi (Kalt) and Myzus persicae (Sultzer) (Homoptera: Aphididae) form the aphid complex that causes great losses in Brassicaceae in tropical and subtropical regions. Knowledge of their population dynamics is important for the development of integrated pest management programmes. This study aimed to investigate the effects of cabbage phenology, climatic factors...

article

First record of the siricid Urocerus albicornis, an invasive alien pest, in the Czech Republic

Jiří Háva, Jaroslav Holuša

Journal of Applied Entomology > 143 > 4 > 487 - 491

One male of the horntail wasp Urocerus albicornis was found in the Czech Republic in 2018. The male probably emerged from imported timber, although it may have originated from an established population because it was collected during the flight period.

article

Response of two parasitoid species (Hymenoptera: Braconidae, Figitidae) to tephritid host and host food substrate cues

María Josefina Buonocore Biancheri, Lorena C. Suárez, Laura Patricia Bezdjian, Guido Alejandro Van Nieuwenhove, more

Journal of Applied Entomology > 143 > 4 > 344 - 356

The Neotropical‐native figitid Aganaspis pelleranoi (Brèthes) and the Asian braconid Diachasmimorpha longicaudata (Ashmead) are two parasitoids of Tephritidae fruit flies with long and recent, respectively, evolutionary histories in the Neotropics. Both species experienced a recent range of overlap. In Argentina, A. pelleranoi is a potential species in biological control programs against the pestiferous...

article

Structure and Process in the Old French jeu‐parti

JOSEPH W. MASON

Music Analysis > 38 > 1-2 > 47 - 79

Previous analytical studies of trouvère song have tended to focus on the structural aspects of the songs. This leaves little room for a consideration of text‐music relationships beyond the first stanza of a song. This article proposes that the analytical constructs of structure and process may be used to reach a wider range of analytical readings. The study focuses on the Old French corpus of jeux‐partis...

article

Tornando Indietro: Dante's Tornata and Metapoetic Returns in the Trecento Madrigal

MIKHAIL LOPATIN

Music Analysis > 38 > 1-2 > 204 - 240

Dante's explanation of the final part of the canzone, which he calls ‘tornata’ (Convivio, II, xi, paras. 2–3), as a formal return that includes metrical and musical components casts fresh light on the poetic motive of return used in some of those tornatas and reveals a potential for metapoetic links between metrics and poetry. This article extrapolates this metapoetic reading of the word tornata to...

article

Synthesis of nanostructured ThO₂ pellets

Emanuele De Bona, Olaf Walter, Heike Störmer, Thierry Wiss, more

Journal of the American Ceramic Society > 102 > 7 > 3814 - 3818

We present here for the first time the production of 3‐ to 5‐nm–sized thoria nanopowders by decomposition of Th‐hydroxide under hot compressed water and their consolidation by high‐pressure spark plasma sintering into dense nanostructured ThO₂ with grain size of 50 nm.

article

Electric field tuning of magnetization in an antiferroelectric‐based heterostructure: Example of NMG/PLZST/NMG

Liuyang Han, Freddy Ponchel, Nicolas Tiercelin, Denis Rémiens, more

Journal of the American Ceramic Society > 102 > 7 > 3809 - 3813

A magnetoelectric (ME) heterostructure was fabricated by depositing a Ni‐Mn‐Ga (NMG) magnetic film on an antiferroelectric (AFE) PLZST—(Pb, La)(Zr, Sn, Ti)O₃—ceramic substrate. Significant and reversible electric field‐induced relative magnetization changes (∆M/M₀) were firstly observed in this magnetic/AFE heterostructure, and the ∆M/M₀ vs electric field loops have been found to correspond well with...

article

Strength retention in hot‐pressed ZrB₂–SiC composite after thermal cycling exposure in air at 1200 and 1400°C

Shuqi Guo

Journal of the American Ceramic Society > 102 > 7 > 3843 - 3848

The effect of thermal cycling exposure on room temperature flexural strength was examined in hot‐pressed ZrB₂–SiC composite undergone cyclic heating‐cooling test at 1200 and 1400°C in air for up to 1000 or 500 cycles. For the post‐tested samples at 1200°C, the flexural strength of the composite initially increased and subsequently degraded with increase of number of thermal cycles (N). The strength...

article

Large‐scale growth of patterned SiC nanowire arrays and their field emission performance

Wenyou Yang, Wei Wang, Chunxiao Xie

Journal of the American Ceramic Society > 102 > 7 > 3854 - 3859

Fabrication of patterned one‐dimensional (1D) nanostructures was recognized as the key process for the construction of functional display devices. In current investigation, we put forward the large‐scale and uniform growth of patterned 3C‐SiC nanowire arrays assisted by the patterned Au catalysts on SiC wafer substrate. The as‐fabricated SiC nanowires presented tapered configuration with a typical...

article

Improvement of quality factor of SrTiO₃ dielectric ceramics with high dielectric constant using Sm₂O₃

Ting Luo, Xinxuan Shan, Jingwei Zhao, Hengheng Feng, more

Journal of the American Ceramic Society > 102 > 7 > 3849 - 3853

The ceramics with the formula of Sr₁₋_xSm₂_x_/3TiO₃ (x = 0‐0.5) were prepared by conventional ceramic process. A single phase of SrTiO₃‐type with cubic perovskite structure was found companied with a decrease in crystal volume when x < 0.5, which was confirmed by X‐ray diffraction results and Rietveld refine. At the level of x = 0.5, the sample consisted of two phases of SrTiO₃‐type and Sm₂Ti₂O₇....

article

Phase stability of rare earth sesquioxides with grain size controlled in the nanoscale

Giora Kimmel, Roni Z. Shneck, Witold Lojkowski, Ze'ev Porat, more

Journal of the American Ceramic Society > 102 > 7 > 3829 - 3835

Rare earth oxides are important materials due to their chemical and physical properties. The rare earth sesquioxides (RESOXs) possess a cubic, monoclinic, or hexagonal structure, depending on pressure, temperature and ionic radius. When RESOXs take the form of single crystalline grains with diameter in the nanoscale range (nanocrystals), it is suspected that the grain size determines the phase stability...

article

Ca₅Ga₆O₁₄:Eu³⁺: A novel phosphor with outstanding heat resistance for white light‐emitting diodes

Zhicong Liu, Chenyang Shen, Lin Yuan, Ya Chen, more

Journal of the American Ceramic Society > 102 > 7 > 3823 - 3828

A novel red‐emitting phosphor Ca₅Ga₆O₁₄:Eu³⁺ has been synthesized using solid‐state method. The excitation and emission spectra show that the phosphor can emit the red light with the main peak at 611 nm under excitation of the 280 and 393 nm UV chip and the optimal Eu³⁺ concentration is determined to be x = 0.07. Analysis of emission spectrum shows that Eu³⁺ occupy the center of noninversion symmetry...

article

Electrochemically assisted room‐temperature crack healing of ceramic‐based composites

Shengfang Shi, Tomoyo Goto, Sunghun Cho, Tohru Sekino

Journal of the American Ceramic Society > 102 > 7 > 4236 - 4246

We demonstrated for the first time the room‐temperature crack healing in ceramic‐based composites. For this purpose, 20 and 30 vol% of fine titanium metal (Ti) were homogeneously dispersed in electrically insulating alumina (Al₂O₃) ceramic to obtain composites that exhibited excellent electrical conductivity. Electrochemical anodization at room temperature was used to successfully heal cracks induced...

article

Linking fresh paste microstructure, rheology and extrusion characteristics of cementitious binders for 3D printing

Sooraj A. O. Nair, Hussam Alghamdi, Aashay Arora, Iman Mehdipour, more

Journal of the American Ceramic Society > 102 > 7 > 3951 - 3964

Cementitious binders amenable to extrusion‐based 3D printing are formulated by tailoring the fresh microstructure through the use of fine limestone powder or a combination of limestone powder and microsilica or metakaolin. Mixtures are proportioned with and without a superplasticizer to enable different particle packings at similar printability levels. A simple microstructural parameter, which implicitly...

article

Improvement of bone mineral density and markers of proximal renal tubular function in chronic hepatitis B patients switched from tenofovir disoproxil fumarate to tenofovir alafenamide

Tse‐Ling Fong, Brian T. Lee, Andy Tien, Mimi Chang, more

Journal of Viral Hepatitis > 26 > 5 > 561 - 567

Tenofovir alafenamide (TAF) is a novel prodrug that reduces tenofovir plasma levels by 90% compared to tenofovir disoproxil fumarate (TDF), resulting in decreased bone mineral density (BMD) loss and renal toxicity. We aimed to study changes in BMD and markers of renal function of chronic hepatitis B (CHB) patients previously treated with TDF who were switched to TAF in as early as 12 weeks. This was...

article

Molecular epidemiology of hepatitis B virus mutants associated with vaccine escape, drug resistance and diagnosis failure

Federico A. Di Lello, Ezequiel Ridruejo, Alfredo P. Martínez, Paula S. Pérez, more

Journal of Viral Hepatitis > 26 > 5 > 552 - 560

The massive implementation of the vaccine and antiviral agents against hepatitis B virus (HBV), targeting the envelope and viral polymerase genes, induces a selection pressure that might lead to the emergence of variants that impair the effectiveness of the vaccine, diagnostic methods and antiviral therapy. The aim of this study was to evaluate the prevalence of HBV vaccine escape mutants (VEMs),...

article

Solution electrowriting of highly stable TiN nanofiber pattern for transparent electrode under extreme environment

Sanyuan Hu, Tao Chen, Jianye Liang, Huamin Zhou, more

Journal of the American Ceramic Society > 102 > 7 > 3972 - 3979

The fast developing electronic industry boosts higher demand of transparent electrode. Nanofiber network design provides a new platform for finding alternative materials to replace the traditional indium‐doped tin oxide (ITO) film as transparent electrode. In this work, the TiN nanofiber network with a micron‐scale precise geometry was firstly assembled by solution electrowriting. Unlike the ordinary...

article

Monolithic silicon carbide with interconnected and hierarchical pores fabricated by reaction‐induced phase separation

Bo‐xing Zhang, Yubei Zhang, Zhenhua Luo, Weijian Han, more

Journal of the American Ceramic Society > 102 > 7 > 3860 - 3869

Hierarchically porous silicon carbide (SiC) monoliths were fabricated based on polycarbosilane (PCS), divinyl benzene (DVB), and decalin, by a sequence of procedures including catalyst‐free hydrosilylation reaction‐induced phase separation, ambient‐pressure drying, calcination, and HF etching. The influences of ratios of each component on the phase separation were systematically studied. It was found...

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Search results

Machine Learning for Prediction of Posttraumatic Stress and Resilience Following Trauma: An Overview of Basic Concepts and Recent Advances

Invariance of the Construct of Posttraumatic Stress Disorder: A Systematic Review

Contributions of climate, plant phenology and natural enemies to the seasonal variation of aphids on cabbage

First record of the siricid Urocerus albicornis, an invasive alien pest, in the Czech Republic

Response of two parasitoid species (Hymenoptera: Braconidae, Figitidae) to tephritid host and host food substrate cues

Structure and Process in the Old French jeu‐parti

Tornando Indietro: Dante's Tornata and Metapoetic Returns in the Trecento Madrigal

Synthesis of nanostructured ThO₂ pellets

Electric field tuning of magnetization in an antiferroelectric‐based heterostructure: Example of NMG/PLZST/NMG

Strength retention in hot‐pressed ZrB₂–SiC composite after thermal cycling exposure in air at 1200 and 1400°C

Large‐scale growth of patterned SiC nanowire arrays and their field emission performance

Improvement of quality factor of SrTiO₃ dielectric ceramics with high dielectric constant using Sm₂O₃

Phase stability of rare earth sesquioxides with grain size controlled in the nanoscale

Ca₅Ga₆O₁₄:Eu³⁺: A novel phosphor with outstanding heat resistance for white light‐emitting diodes

Electrochemically assisted room‐temperature crack healing of ceramic‐based composites

Linking fresh paste microstructure, rheology and extrusion characteristics of cementitious binders for 3D printing

Improvement of bone mineral density and markers of proximal renal tubular function in chronic hepatitis B patients switched from tenofovir disoproxil fumarate to tenofovir alafenamide

Molecular epidemiology of hepatitis B virus mutants associated with vaccine escape, drug resistance and diagnosis failure

Solution electrowriting of highly stable TiN nanofiber pattern for transparent electrode under extreme environment

Monolithic silicon carbide with interconnected and hierarchical pores fabricated by reaction‐induced phase separation

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