bluuebunny/crossref_metadata_2025_split huggingface dataset:
Collagen Strip Technique: A Novel Approach for Ridge Preservation and Concomitant Oroantral Communication Management After Implant Explantation
Authors: Cheng Guo‐Liang , Tatakis Dimitris N. 
Published: February 2020

IntroductionThis case report introduces a technique for managing oroantral communication (OAC) using a collagen membrane strip to repair the perforated sinus membrane and simultaneously graft the alveolar ridge.Case PresentationA 55‐year‐old Asian male presented for a second‐opinion consultation regarding an endosseous dental implant that had been placed overly subcrestal at #13 edentulous site. The 8 mm fixture had been placed 3 to 4 mm subcrestally with more than half the implant length into the maxillary sinus. The patient stated that no sinus augmentation procedure had been performed. The implant was considered to be non‐restorable and treatment planned for explantation with ridge preservation. Explantation revealed a sinus perforation with OAC. A collagen membrane strip (30 × 6 mm) was folded into a U‐shape, to hold bone allograft for ridge preservation, and placed with the bottom of the U‐shape level with the sinus floor and the ends extending to the buccal and palatal, beyond the crest. A second collagen membrane covered the graft at ridge crest level, followed by primary closure. Implant placement (4.1 × 10 mm) with indirect sinus augmentation was performed in 6 months. The implant was uncovered and subsequently restored following a 5‐month osseointegration period. The 13‐month follow‐up examination revealed successful outcomes, with normal clinical and radiographic parameters.ConclusionThis novel technique achieved the dual goals of ridge preservation and repair of a sinus membrane perforation simultaneously after implant explantation in the posterior maxilla. It further allowed a successful implant placement with simultaneous sinus augmentation and subsequent restoration.
Left atrial global function in chronic heart failure patients with functional mitral regurgitation after MitraClip
Authors: Öztürk Can , Fasell Tamana , Sinning Jan‐Malte , Werner Nikos , Nickenig Georg , Hammerstingl Christoph , Schueler Robert 
Published: February 2020

AbstractBackgroundLeft atrial (LA) volumes and function are believed to improve following interventional reduction of mitral regurgitation (MR) with MitraClip. However, exact LA alterations after MitraClip in patients with functional MR and functional mitral regurgitation (FMR) are unknown.ObjectivesWe aimed to evaluate the effect of MitraClip on LA volumes and global function in patients with FMR and its importance for patients' prognosis.MethodsAll patients underwent three‐dimensionally transthoracic echocardiography with an offline evaluation of LA geometry and strain analysis at baseline and follow‐up (FU). FU examinations were planned for 6 and 12 months after MitraClip.ResultsWe prospectively included 50 consecutive surgical high‐risk (logistic EuroSCORE: 17.2 ± 13.9%) patients (77 ± 9 years, 22% female) with symptomatic moderate‐to‐severe to severe functional MR without atrial fibrillation.Echocardiographic evaluation showed that the E/E' ratio was significantly higher at FU (15.6 ± 7.3, 24.1 ± 13.2, p = .05) without relevant changes in systolic left ventricle (LV) function (p = .5). LA volumes (end‐diastolic volume [LA‐EDV] and end‐systolic volume [LA‐ESV]) (LA‐EDV: 83.1 ± 39.5 ml, 115.1 ± 55.3 ml, p = .012; LA‐ESV: 58.4 ± 33.4 ml, 80.1 ± 43.9 ml, p = .031), muscular mass (105.1 ± 49.3 g, 145.4 ± 70.6 g, p = .013), as well as LA stroke volume (24.6 ± 12.5 ml, 34.9 ± 19.1 ml, p = .016) significantly increased after the procedure. LA ejection fraction (LA‐EF: 31.7 ± 12.8%, 31.1 ± 12.3%, p = .8) and atrial global strain (aGS: −10.8 ± 5.4%, −9.7 ± 4.45%, p = .4) showed no significant changes at FU.Despite no relevant changes during FU, the baseline aGS was found to be the strongest predictor for mortality and adverse interventional outcome.ConclusionMitraClip increases atrial stroke volume, atrial volumes, and muscular mass in patients with FMR. We found that the baseline aGS the strongest predictor for mortality, rehospitalization, and higher residual MR at FU.
Highly Accurate Prediction Method for Thermophysical Properties of Cryogenic Phase Change Materials
Authors: Zhang Jinwen , Li Yajun 
Published: February 2020

AbstractConsidering the limitations of experimental studies on thermophysical properties of cryogenic phase change materials (PCMs), a highly accurate approach to predict the solid‐liquid equilibrium (SLE) of PCMs is proposed, in which the method of referenced state by a hypothetic path is used in the fugacity of PCMs in the solid phase and the Soave‐Redlich‐Kwong (SRK)‐UNIFAC model is applied in the liquid phase. Based on this method, the thermophysical properties of cryogenic composite PCMs including eutectic composition, eutectic temperature, and eutectic enthalpy are predicted with a minor deviation. Taking the liquid natural gas (LNG) air separation unit as an example, the established simulating method with high accuracy to predict the thermophysical properties of the PCMs is adopted for material selection and design for a cold storage unit in this project with high efficiency.
Black TiO2: What are exact functions of disorder layer
Authors: Kim Sungsoon , Cho Yoonjun , Rhee Ryan , Park Jong Hyeok 
Published: February 2020

AbstractAmong the substantial amount of photocatalyst materials, TiO2 has been enthusiastically studied for a few decades due to its outstanding photocatalytic activity and stability. Recently, black TiO2 consisting of approximately 2 nm of thin disorder layer around the surface showed surprisingly high solar hydrogen generation ability. The disorder layer of TiO2 can enhance its light absorption, charge separation, and surface reaction abilities, however exact fundamentals of photocatalytic water‐splitting pathways are still ambiguous. Herein, recent progress and investigations on exact functions of disorder layer and its application in photocatalytic CO2 reduction will be discussed. Throughout the comprehensive studies on disorder layer of TiO2, disorder engineering on photocatalyst materials will suggest the further extension of developing solar‐fuel production technologies.
Converting Poly(Methyl Methacrylate) into a Triple‐Responsive Polymer
Authors: Hils Christian , Fuchs Emma , Eger Franziska , Schöbel Judith , Schmalz Holger 
Published: February 2020

AbstractMultiresponsive polymers that can respond to several external stimuli are promising materials for a manifold of applications. Herein, a facile method for the synthesis of triple‐responsive (pH, temperature, CO2) poly(N,N‐diethylaminoethyl methacrylamide) by a post‐polymerization amidation of poly(methyl methacrylate) (PMMA) is presented. Combined with trivalent counterions ([Fe(CN)6]3−) both an upper and lower critical solution temperature (UCST/LCST)‐type phase behavior can be realized at pH 8 and 9. PMMA and PMMA‐based block copolymers are readily accessible by living anionic and controlled radical polymerization techniques, which opens access to various responsive polymer architectures based on the developed functionalization method. This method can also be applied on melt‐processed bulk PMMA samples to introduce functional, responsive moieties at the PMMA surface.
A Thioxanthone Sensitizer with a Chiral Phosphoric Acid Binding Site: Properties and Applications in Visible Light‐Mediated Cycloadditions
Authors: Pecho Franziska , Zou You‐Quan , Gramüller Johannes , Mori Tadashi , Huber Stefan M. , Bauer Andreas , Gschwind Ruth M. , Bach Thorsten 
Published: February 2020

AbstractA chiral phosphoric acid with a 2,2’‐binaphthol core was prepared that displays two thioxanthone moieties at the 3,3’‐position as light‐harvesting antennas. Despite its relatively low triplet energy, the phosphoric acid was found to be an efficient catalyst for the enantioselective intermolecular [2+2] photocycloaddition of β‐carboxyl‐substituted cyclic enones (e.r. up to 93:7). Binding of the carboxylic acid to the sensitizer is suggested by NMR studies and by DFT calculations to occur by means of two hydrogen bonds. The binding event not only enables an enantioface differentiation but also modulates the triplet energy of the substrates.
Asymmetric Catalysis with Chiral Frustrated Lewis Pairs
Authors: Meng Wei , Feng Xiangqing , Du Haifeng 
Published: February 2020

The chemistry of frustrated Lewis pairs (FLPs) provides the most important approach for the metal‐free hydrogenation and hydrosilylations. Great progress has been achieved in this area for the past decade. Some promising results have also been obtained. This perspective article mainly focuses on the recent advances for the synthesis of chiral Lewis acidic boranes in category of three protocols, 1) hydroboration of chiral internal alkenes with Piers’ borane HB(C6F5)2; 2) in situ hydroboration of chiral alkenes or alkynes without any purification; 3) and substitution reaction of (C6F5)nBCl3–n with chiral organometallic reagents, as well as their applications in the metal‐free asymmetric hydrogenations and hydrosilylations.
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Direct Growth of Graphene over Insulators by Gaseous‐Promotor‐Assisted CVD: Progress and Prospects
Authors: Liu Bingzhi , Sun Jingyu , Liu Zhongfan 
Published: February 2020

AbstractUtilizing a direct chemical vapor deposition (CVD) approach to allow transfer‐free synthesis of graphene on insulating substrates is appealing. Nevertheless, the quality and uniformity of thus‐grown graphene without the aid of any catalyst stay normally inferior to that of graphene formed on metals by far. This mainly stems from the catalytic inertness of the insulating surface with regard to the decomposition of carbon feedstock. In this respect, delicate methodologies have been devised to date to boost the quality of directly‐grown graphene. In this Minireview, recent advances in the direct CVD growth of graphene on insulators by introducing various gaseous promotors is covered. The effects and mechanisms of different types of promotors on the direct growth are discussed. At the end, existing challenges and future perspectives in this field are further highlighted.
Hybrid Carbon Dioxide Reduction Photocatalysts Consisting of Macrocyclic Cobalt(III) Complexes Deposited on Semiconductor Surfaces
Authors: Huang Peipei , Pantovich Sebastian A. , Okolie Norbert O. , Deskins N. Aaron , Li Gonghu 
Published: February 2020

AbstractHybrid photocatalysts can be prepared by coupling metal‐ligand complexes with light‐harvesting semiconductors. It is often challenging and time consuming to derivatize ligands with anchoring groups to effectively attach onto surfaces. In this study, we synthesized hybrid carbon dioxide reduction photocatalysts by directly depositing two macrocyclic Co(III) complexes on three different semiconductor surfaces (TiO2, N−Ta2O5 and C3N4). The resulting hybrid photocatalysts were characterized with various techniques and tested in CO2 reduction reactions under different light conditions. Excellent visible‐light CO2‐reduction activity was obtained using C3N4 as the light‐harvesting semiconductor. Density functional theory calculations were conducted to help understand interactions between the cobalt complexes with a model TiO2 surface.
Recurrent genomic selection for wheat grain fructans
Authors: Veenstra Lynn D. , Poland Jesse , Jannink Jean‐Luc , Sorrells Mark E. 
Published: February 2020

AbstractFructans are carbohydrates found in many plants, including wheat (Triticum aestivum L.), and they serve physiological roles in both plants and humans. Genomic selection (GS) could facilitate the rapid development of climate‐resilient, nutritionally improved wheat cultivars, such as high‐fructan cultivars, while decreasing resource‐intensive phenotyping requirements. However, few empirical studies have examined GS for nutritional quality breeding. Although GS can accelerate gain from selection, loss of genetic variation and inbreeding may limit the potential for long‐term gain. The objectives of this study were (a) to determine realized gain from GS for wheat grain fructan content with simple truncated selection (TS) and optimized contribution selection (OCS) methods, (b) to determine if gains agree with theoretical expectations, and (c) to compare impacts of selection on inbreeding, genetic variance, and indirect selection on agronomic characteristics. Over 2 yr, two cycles of GS were performed with equal contribution TS and inbreeding‐constrained OCS selection. Genomic selection with TS and OCS led to a 25 ± 12% and 34 ± 6.4% increase in wheat grain fructan content, respectively. Although positive gains from selection were observed for both populations, OCS populations exhibited these gains while simultaneously retaining greater genetic variance and lower inbreeding levels relative to TS populations. Selection for wheat grain fructan content did not change plant height but significantly decreased days to heading in OCS populations. In this study, GS effectively improved the nutritional quality of wheat, and OCS controlled the rate of inbreeding.
A multicenter audit of outpatient care for adult anorexia nervosa: Symptom trajectory, service use, and evidence in support of “early stage” versus “severe and enduring” classification
Authors: Ambwani Suman , Cardi Valentina , Albano Gaia , Cao Li , Crosby Ross D. , Macdonald Pamela , Schmidt Ulrike , Treasure Janet 
Published: February 2020

AbstractBackgroundWe explored the utility of “staging” anorexia nervosa (AN) by duration of illness and psychological wellbeing. We also investigated 12‐month symptom trajectories and service usage in a large cohort of patients with AN assessed for outpatient treatment.MethodWe conducted secondary analyses on data from a multisite clinical trial of adults with AN (n = 187) recruited from 22 NHS England specialist eating disorder (ED) services into a digital treatment augmentation study. Clinical outcomes and service use were measured at postintervention (six weeks), 6 and 12 months. We grouped patients into two categories: “early stage” (illness duration <3 years; n = 60) and “severe and enduring” stage (SE‐AN; n = 41) indicated by distress (Depression Anxiety and Stress Scales, DASS ≥60) and illness duration (≥7 years).ResultsAt 12 months, patients reported large improvements in body mass index, small to moderate improvements in ED symptoms, mood, and work/social adjustment, and 23.6% met criteria for recovery. However, patients classified as SE‐AN reported higher rates of accessing intensive services, higher ED symptomatology, and poorer work/social adjustment at baseline, and lower rates of improvement in work/social adjustment at 12 months compared to “early stage” respondents.DiscussionAlthough present findings suggest overall symptomatic improvements, exploratory results highlight marked differences in course and service use between people at different stages of AN, suggesting a need to consider staging for clinical decision‐making. Further research differentiating between clinical subtypes of AN and adoption of a more personalized approach may ensure that services and care pathways better fit patient needs.
Specific microbiota enhances intestinal IgA levels by inducing TGF‐β in T follicular helper cells of Peyer's patches in mice
Authors: Beller Alexander , Kruglov Andrey , Durek Pawel , von Goetze Victoria , Werner Katharina , Heinz Gitta Anne , Ninnemann Justus , Lehmann Katrin , Maier René , Hoffmann Ute , Riedel René , Heiking Kevin , Zimmermann Jakob , Siegmund Britta , Mashreghi Mir‐Farzin , Radbruch Andreas , Chang Hyun‐Dong 
Published: February 2020

AbstractIn humans and mice, mucosal immune responses are dominated by IgA antibodies and the cytokine TGF‐β, suppressing unwanted immune reactions but also targeting Ig class switching to IgA. It had been suggested that eosinophils promote the generation and maintenance of mucosal IgA‐expressing plasma cells. Here, we demonstrate that not eosinophils, but specific bacteria determine mucosal IgA production. Co‐housing of eosinophil‐deficient mice with mice having high intestinal IgA levels, as well as the intentional microbiota transfer induces TGF‐β expression in intestinal T follicular helper cells, thereby promoting IgA class switching in Peyer's patches, enhancing IgA+ plasma cell numbers in the small intestinal lamina propria and levels of mucosal IgA. We show that bacteria highly enriched for the genus Anaeroplasma are sufficient to induce these changes and enhance IgA levels when adoptively transferred. Thus, specific members of the intestinal microbiota and not the microbiota as such regulate gut homeostasis, by promoting the expression of immune‐regulatory TGF‐β and of mucosal IgA.
The new micropatterned interdigitated electrode for selective assessment of the nociceptive system
Authors: Di Stefano Giulia , Di Lionardo Andrea , La Cesa Silvia , Di Pietro Giuseppe , Fasolino Alessandra , Galosi Eleonora , Leone Caterina , Cruccu Giorgio , Marinelli Lucio , Leandri Massimo , Truini Andrea 
Published: February 2020

AbstractBackgroundIn this neurophysiological study, we aimed at verifying the nociceptive selectivity of the new, micropatterned electrode (150IDE), recently designed to generate an electric field limited to the intraepidermal free nerve endings.MethodsUsing the new 150IDE, we recorded evoked potentials after stimulation of the face and hand dorsum in 22 healthy participants and in patients with exemplary conditions selectively affecting the nociceptive system. We also measured the peripheral conduction velocity at the upper arm and verified the nociceptive selectivity of 150IDE assessing the effect of a selective block of nociceptive nerve fibres of radial nerve with local anaesthetic infiltration. In healthy participants and in patients, we have also compared the 150IDE‐evoked potentials with laser‐evoked potentials.ResultsIn healthy participants, the 150IDE‐evoked pinprick sensation and reproducible scalp potentials, with latency similar to laser‐evoked potentials. The mean peripheral conduction velocity, estimated at the upper arm, was 12 m/s. The selective nociceptive fibre block of the radial nerve abolished the scalp potentials elicited by the 150IDE stimulation. In patients, the 150IDE‐evoked potentials reliably detected the selective damage of the nociceptive system.ConclusionsOur neurophysiological study shows that this new 150IDE provides selective information on nociceptive system.Significance150IDE is a promising new tool for investigating nociceptive system in patients with neuropathic pain.
Development of Archimedean t‐norm and t‐conorm‐based interval‐valued dual hesitant fuzzy aggregation operators with their application in multicriteria decision making
Authors: Sarkar Arun , Biswas Animesh 
Published: February 2020

AbstractIn this article, Archimedean t‐norm and t‐conorm (At‐N&t‐CN)‐based aggregation operators are developed for aggregating the interval‐valued dual hesitant fuzzy (IVDHF) elements (IVDHFEs), which can cover a wide variety of existing aggregation operators. After introducing the concept of IVDHF set, several related terms, viz., score function, accuracy function, and degree of hesitancy are defined. Using At‐N&t‐CN, different operations for IVDHFEs are presented. Conversion processes from the developed operators to other forms of operators in several variants of fuzzy environments are discussed. An approach to solve multicriteria decision making problem in IVDHF context is presented using the developed concepts. To demonstrate proficiency of the developed method, an illustrative example is presented. Furthermore, several numerical examples, studied previously, are also solved, and achieved solutions are compared with the existing ones to establish the robustness of the proposed operator.
Comparison of various atomic compositions of Au@Pd/C, Pd/C, and AuPd/C electrocatalysts for direct ethanol fuel cells
Authors: Fontes Eric H. , Nandenha Júlio , Piasentin Ricardo M. , De Souza Rodrigo F. B. , Neto Almir O. 
Published: February 2020

AbstractPd/C, Au@Pd/C (core‐shell), and AuPd/C (AR—consisting in Au microparticles) were used as electrocatalysts for ethanol oxidation in alkaline medium. A synergistic effect between Au and Pd atoms in Au@Pd/C makes the binding between ethanol and Au@Pd/C stronger. This leads to product formation in higher potentials and can be useful to select ethanol products. We also showed that the atomic composition of the electrocatalysts to be used in fuel cells and in powder form to be used in electrochemical experiments are very similar, reaching high values of correlation. The depth profiling X‐ray photoelectron spectroscopy for the anode catalysts to be used in fuel cells can provide new insights about ethanol oxidation in direct ethanol fuel cells (DEFCs), for instance, metal oxide species can act in fuel cells environment. In terms of electric generation, Au@Pd/C presented a better performance in electrochemical experiments; the current density was about 1.6 times higher than the peak current density obtained for Pd/C. In terms of electrochemical stability, Au@Pd/C presented better final current density when compared to Pd/C and AuPd/C electrocatalysts. However, in DEFC experiments, Pd/C showed better performance.
Assessing the fire behavior of woods modified by N‐methylol crosslinking, thermal treatment, and acetylation
Authors: Rabe Sebastian , Klack Patrick , Bahr Horst , Schartel Bernhard 
Published: February 2020

SummaryWood products are often treated by different techniques to improve their longevity when used as building materials. Most of the time, the goal is to increase their resistance to weathering effects, deformations in material dimensions or biotic decomposition. These wood treatment techniques have a significant impact on pyrolysis and burning behavior. The general effects of three different common wood treatments on flame retardancy were investigated by comparing treated woods with their untreated counterparts and with other kinds of wood. While the acetylation of beech leads to a slightly increased fire hazard, the thermal treatment of wood and crosslinking of cellulose microfibrils dimethyloldihydroxy‐ethyleneurea show a limited flame retarding effect. Switching to woods with a higher lignin content, and thus higher char yield, however, results in a more pronounced improvement in flame retardancy performance. This article delivers a comprehensive and balanced assessment of the general impact of different wood modifications on the fire behavior. Further, it is a valuable benchmark for assessing the flame retardancy effect of other wood modifications.
Kriechförmig verlaufende Großmassenbewegungen – Charakterisierung und Bewertungen des Sicherheitszustands
Authors: Marte Roman , Hofmann Robert 
Published: February 2020

AbstractThis article investigates to what extent a ”condition and safety assessment“ with a classically defined safety factor η (now partial safety factor or load factor) is useful or indeed possible for creeping slides of large masses as are often encountered in the Alps, or whether different quantities like the displacement rate and its change with time are more useful for the description of the condition of such large‐scale slides. This discussion is held under the viewpoint that various procedures with different results are available for the determination of such a ”safety factor“ and consequently there are also justified discrepancies between experts in the assessment of such a ”safety factor for the current state“ of the moving slope. The authors are of the opinion that the partial safety factors required by standards or former ”safety factors“ are predominantly intended for engineering structures, earthworks and dams but not generally for creeping slopes. In this case, classification of creep rate and the geological engineering assessment are always preferred. This is illustrated with two examples.