bluuebunny/crossref_metadata_2025 huggingface dataset:
The Value of Empirical Data for Estimating the Parameters of a Sociohydrological Flood Risk Model
Authors: Barendrecht M. H. , Viglione A. , Kreibich H. , Merz B. , Vorogushyn S. , Blöschl G.
Published: January 2019

In this paper, empirical data are used to estimate the parameters of a sociohydrological flood risk model. The proposed model, which describes the interactions between floods, settlement density, awareness, preparedness, and flood loss, is based on the literature. Data for the case study of Dresden, Germany, over a period of 200 years, are used to estimate the model parameters through Bayesian inference. The credibility bounds of their estimates are small, even though the data are rather uncertain. A sensitivity analysis is performed to examine the value of the different data sources in estimating the model parameters. In general, the estimated parameters are less biased when using data at the end of the modeled period. Data about flood awareness are the most important to correctly estimate the parameters of this model and to correctly model the system dynamics. Using more data for other variables cannot compensate for the absence of awareness data. More generally, the absence of data mostly affects the estimation of the parameters that are directly related to the variable for which data are missing. This paper demonstrates that combining sociohydrological modeling and empirical data gives additional insights into the sociohydrological system, such as quantifying the forgetfulness of the society, which would otherwise not be easily achieved by sociohydrological models without data or by standard statistical analysis of empirical data.
Anxiety Among Adolescents With Asthma: Relationships With Asthma Control and Sleep Quality
Authors: Fidler Andrea , Lawless Casey , LaFave Elizabeth , Netz Mallory , McConville Andrew , Turner Elise , Fedele David
Published: January 2019

Objective: Adolescents with asthma are at increased risk for poor sleep quality, anxiety, and worse asthma control. Given associations between sleep and anxiety among youth and between asthma control and anxiety in the adult literature, this cross-sectional study aims to examine whether (1) asthma control and anxiety are related among adolescents with asthma and (2) sleep quality accounts for unique variance in symptoms of anxiety beyond asthma control. Methods: Forty-one adolescents with persistent asthma ( M age = 14.83, SD = 1.28) completed the Adolescent Sleep Wake Scale, the Multidimensional Anxiety Scale for Children 2, and the Asthma Control Test. Hierarchical linear regressions were conducted to assess whether sleep quality accounted for unique variance in anxiety above asthma control. Results: Asthma control was not related to overall anxiety, p > .05, but was associated with greater endorsement of Generalized Anxiety Disorder (GAD) and physical anxiety symptoms. Together, asthma control and sleep quality explained 32.3% of the variance in overall anxiety, F(3, 34) = 5.41, p = .004. Adding sleep quality to the model accounted for 15.8% of the variance, with worse sleep quality being associated with higher anxiety, β = −.43, p = .008. Controlling for asthma control, sleep quality also explained additional variance in GAD and physical anxiety symptoms. Asthma control and sleep quality were not related to harm avoidance, p > .05. Conclusions: Our results emphasize the importance of screening for anxiety and sleep difficulties when working with adolescents with asthma, particularly those with poor asthma control.

Implications for Impact Statement

This study among adolescents with asthma suggests sleep quality may be an important component of anxiety beyond asthma control. Additionally, findings indicate adolescents with worse asthma control and poorer sleep quality endorse more anxiety symptoms.
Stratification and prediction of remission in first-episode psychosis patients: the OPTiMiSE cohort study
Authors: Martinuzzi Emanuela , Barbosa Susana , Daoudlarian Douglas , Bel Haj Ali Wafa , Gilet Cyprien , Fillatre Lionel , Khalfallah Olfa , Troudet Réjane , Jamain Stéphane , Fond Guillaume , Sommer Iris , Leucht Stefan , Dazzan Paola , McGuire Philip , Arango Celso , Diaz-Caneja Covadonga M. , Fleischhacker Wolfgang , Rujescu Dan , Glenthøj Birte , Winter Inge , Kahn René Sylvain , Yolken Robert , Lewis Shon , Drake Richard , Davidovic Laetitia , Leboyer Marion , Glaichenhaus Nicolas ,   the OPTiMiSE Study Group
Published: January 2019

Early response to first-line antipsychotic treatments is strongly associated with positive long-term symptomatic and functional outcome in psychosis. Unfortunately, attempts to identify reliable predictors of treatment response in first-episode psychosis (FEP) patients have not yet been successful. One reason for this could be that FEP patients are highly heterogeneous in terms of symptom expression and underlying disease biological mechanisms, thereby impeding the identification of one-size-fits-all predictors of treatment response. We have used a clustering approach to stratify 325 FEP patients into four clinical subtypes, termed C1A, C1B, C2A and C2B, based on their symptoms assessed using the Positive and Negative Syndrome Scale (PANSS) scale. Compared to C1B, C2A and C2B patients, those from the C1A subtype exhibited the most severe symptoms and were the most at risk of being non-remitters when treated with the second-generation antipsychotic drug amisulpride. Before treatment, C1A patients exhibited higher serum levels of several pro-inflammatory cytokines and inflammation-associated biomarkers therefore validating our stratification approach on external biological measures. Most importantly, in the C1A subtype, but not others, lower serum levels of interleukin (IL)-15, higher serum levels of C-X-C motif chemokine 12 (CXCL12), previous exposure to cytomegalovirus (CMV), use of recreational drugs and being younger were all associated with higher odds of being non-remitters 4 weeks after treatment. The predictive value of this model was good (mean area under the curve (AUC) = 0.73 ± 0.10), and its specificity and sensitivity were 45 ± 0.09% and 83 ± 0.03%, respectively. Further validation and replication of these results in clinical trials would pave the way for the development of a blood-based assisted clinical decision support system in psychosis.
Determination of sample stability for whole blood parameters using formal experimental design
Authors: Murray Lara P. , Baillargeon Keith R. , Bricknell Jordan R. , Mace Charles R.
Published: January 2019

Hematocrit increases with storage time, leading to a decrease in transport distance in our paper-based hematocrit device.
Force spectroscopic detection of peptide cleavage by thrombin exploiting biotin–streptavidin interactions in a bio-sensing context
Authors: Li Jingfeng , Li Qing , Potthoff Sebastian , Wei Gang , Lucio Colombi Ciacchi
Published: January 2019

Atomic-force-microscopy-based single-molecule force spectroscopy (AFM-SMFS) has become an important technique as the basis of novel, label-free biosensing strategies.
Synthesis of a dimeric phosphine-stabilized phosphidogermanium(i)–amidogermanium(ii) derivative
Authors: Bin Ismail Muhammad Luthfi , So Cheuk-Wai
Published: January 2019

The reaction of amidinato phosphinoamidosilylene 1 with GeCl2·dioxane in toluene afforded a dimeric phosphine-stabilized phosphidogermanium(i)–amidogermanium(ii) derivative 3 and a mixture of by-products. Compound 3 is the first example comprising a novel phosphidogermanium(i) dimer moiety [Ph2P-Ge:]2, being considered as a base-stabilized diphosphidoditetrelyne derivative.
Structure and cleavage of monosodium urate monohydrate crystals
Authors: Molloy Rachael G. E. , Sun Weihao , Chen Jialu , Zhou Wuzong
Published: January 2019

Needle-shaped crystals of monosodium urate monohydrate, the principal component in gout stones, were peeled off into polymerised molecules by sonication.
Hydrogen adsorption on transition metal carbides: a DFT study
Authors: Silveri Fabrizio , Quesne Matthew G. , Roldan Alberto , de Leeuw Nora H. , Catlow C. Richard A.
Published: January 2019

This work investigates the hydrogenation of the surfaces of those materials and its relationship with the catalytic behaviour of these materials.
Photoredox catalysts based on earth-abundant metal complexes
Authors: Hockin Bryony M. , Li Chenfei , Robertson Neil , Zysman-Colman Eli
Published: January 2019

Visible light photoredox catalysis has exploded into the consciousness of the synthetic chemist. We critically review Earth-abundant metal complexes photocatalysts including Cu(i), Zn(ii), Ni(0), V(v), Zr(iv), W(0), W(vi), Mo(0), Cr(iii), Co(iii) and Fe(ii).
Structural evolution of carbon in an Fe@C catalyst during the Fischer–Tropsch synthesis reaction
Authors: Lyu Shuai , Liu Chengchao , Wang Guanghui , Zhang Yuhua , Li Jinlin , Wang Li
Published: January 2019

A pseudo-in situ research method was applied to provide insight into the structural evolution of carbon in an Fe@C catalyst at different stages of the Fischer–Tropsch reaction.
Comparative assessment of the phase transfer behaviour of InP/ZnS and CuInS/ZnS quantum dots and CdSe/ZnS quantum dots under varying environmental conditions
Authors: Marşan Dilem , Şengül Hatice , Andaç Özdil Ayşe Müge
Published: January 2019

It is vital to assess the behavior of quantum dots in different environmental media to determine their environmental impacts and potential health risks.
COMBI, continuous ozonation merged with biofiltration to study oxidative and microbial transformation of trace organic contaminants
Authors: Zoumpouli Garyfalia A. , Scheurer Marco , Brauch Heinz-Jürgen , Kasprzyk-Hordern Barbara , Wenk Jannis , Happel Oliver
Published: January 2019

Investigating the biodegradation of ozonation products of trace organic contaminants is important to further elucidate their fate and to assess the efficiency of advanced water treatment processes.
Two-photon excitation spectroscopy of photosynthetic light-harvesting complexes and pigments
Authors: Betke Alexander , Lokstein Heiko
Published: January 2019

Two-photon excitation (TPE) profiles of LHCII samples containing different xanthophyll complements were measured in the presumed 11Ag−→ 21Ag−(S0→ S1) transition region of xanthophylls. Additionally, TPE profiles of Chlsaandbin solution and of WSCP, which does not contain carotenoids, were measured. The results indicate that direct two-photon absorption by Chls in the presumed S0→ S1transition spectral region of carotenoids is dominant over that of carotenoids, with negligible contributions of the latter. These results suggest the re-evaluation of previously published TPE data obtained with photosynthetic pigment–protein complexes containing (B)Chls and carotenoids.
A PET-based turn-on fluorescent probe for sensitive detection of thiols and H2S and its bioimaging application in living cells, tissues and zebrafish
Authors: Xu Kaixin , He Longwei , Yang Yunzhen , Lin Weiying
Published: January 2019

A two-photon turn-on fluorescent probe regulated by a PET mechanism has been engineered for detection of thiols and H2S in living cells, tissues and zebrafish.
The mechanism of controlled integration of ZnO nanowires using pulsed-laser-induced chemical deposition
Authors: Liu Zhikun , Liu Siyu , Wu Wenzhuo , Liu C. Richard
Published: January 2019

Laser-induced chemical deposition is an economical “grow-in-place” approach to produce functional materials.
Silent catalytic promiscuity in the high-fidelity terpene cyclase δ-cadinene synthase
Authors: Loizzi Marianna , Miller David J. , Allemann Rudolf K.
Published: January 2019

Aza-analogues of carbocations inhibit δ-cadinene synthase: 1,6-cyclisation.
Investigation of the dithieno[3,2-b:2′,3′-d]pyrrole polymerization using cross-coupling and cationic mechanisms
Authors: Leysen Pieter , Quattrosoldi Silvia , Salatelli Elisabetta , Koeckelberghs Guy
Published: January 2019

In this manuscript, several methodologies to obtain a living polymerization of dithieno[3,2-b:2′,3′-d]pyrrole are investigated.
Thermally driven directional free-radical polymerization in confined channels
Authors: Datta Preeta , Efimenko Kirill , Genzer Jan
Published: January 2019

We report on the formation of poly(acrylamide) (PAAm) with a relatively-narrow molecular weight distribution (MWD) by means of thermally-driven directional free-radical polymerization carried out in polymerization chambers featuring two parallel glass walls separated by various distances, ranging from sub-millimeter to a few millimeters.
Electrospun composite nanofibre fabrics containing green reduced Ag nanoparticles as an innovative type of antimicrobial insole
Authors: Du L. , Li T. , Wu S. , Zhu H. F. , Zou F. Y.
Published: January 2019

This study aims to develop an antimicrobial insole with an electrospun nanofibre mat which contains green reduced Ag NPs by a facile fabrication method.
Effects of blending sequences and molecular structures of the compatibilizers on the morphology and properties of PLLA/ABS blends
Authors: Cao Xiaojun , Dong Wenyong , He Meifeng , Zhang Junqing , Ren Fanglu , Li Yongjin
Published: January 2019

The morphology and properties of compatibilized PLLA/ABS blends can be optimized by using appropriate compatibilizers and blending sequences.
CO2 capture by Mn(i) and Re(i) complexes with a deprotonated triethanolamine ligand
Authors: Koizumi Hiroki , Chiba Hiroyuki , Sugihara Ayumi , Iwamura Munetaka , Nozaki Koichi , Ishitani Osamu
Published: January 2019

CO2 capture at low concentration by catalysts is potentially useful for developing photocatalytic and electrocatalytic CO2 reduction systems.
In situ visualization of ozone in the brains of mice with depression phenotypes by using a new near-infrared fluorescence probe
Authors: Li Ping , Wang Jijuan , Wang Xin , Ding Qi , Bai Xiaoyi , Zhang Yandi , Su Di , Zhang Wei , Zhang Wen , Tang Bo
Published: January 2019

A near-infrared fluorescent probe was exploited to sensitively visualize ozone in the brains of mice with depression phenotypes in situ.
Hybrid mass spectrometry methods reveal lot-to-lot differences and delineate the effects of glycosylation on the tertiary structure of Herceptin®
Authors: Upton Rosie , Migas Lukasz G. , Pacholarz Kamila J. , Beniston Richard G. , Estdale Sian , Firth David , Barran Perdita E.
Published: January 2019

To quantify the measurable structural heterogeneity of a biopharmaceutical product and the effect of glycosylation on this we systematically evaluate three lots of Herceptin®, two mAb standards and an intact 5 Fc-hinge fragment.
Oxygen reactions on Pt{hkl} in a non-aqueous Na+ electrolyte: site selective stabilisation of a sodium peroxy species
Authors: Galloway Thomas A. , Dong Jin-Chao , Li Jian-Feng , Attard Gary , Hardwick Laurence J.
Published: January 2019

The oxygen reduction and evolution reaction in the presence of sodium ions in an organic solvent is studied on well-defined Pt electrode surfaces.
Catalytic β C–H amination via an imidate radical relay
Authors: Stateman Leah M. , Wappes Ethan A. , Nakafuku Kohki M. , Edwards Kara M. , Nagib David A.
Published: January 2019

An iodine-catalyzed strategy for β C–H amination of alcohols is enabled by a chemo-, regio-, and stereo-selective H-atom transfer mechanism.
Different metrics for connecting mobility and glassiness in thin films
Authors: DeFelice Jeffrey , Lipson Jane E. G.
Published: January 2019

Alternative perspectives of mobility method 1 (blue) vs. method 2 (red) compared to experimental data (symbols).
Controllable charge capacity using a black additive for high-energy-density sodium-ion batteries
Authors: Jo Chang-Heum , Choi Ji Ung , Yashiro Hitoshi , Myung Seung-Taek
Published: January 2019

A P′2 type cathode supported by a NaNO2 additive achieves a high energy density of ∼300 W h kg−1.
Lithium-ion batteries: outlook on present, future, and hybridized technologies
Authors: Kim Taehoon , Song Wentao , Son Dae-Yong , Ono Luis K. , Qi Yabing
Published: January 2019

Key insights into the evolution of lithium-ion batteries: present, future, and hybridized technologies.
Facile synthesis of porous hybrid materials based on Calix-3 dye and TiO2 for high photocatalytic water splitting performance with excellent stability
Authors: Huang Jian-Feng , Liu Jun-Min , Xiao Li-Min , Zhong Yu-Hui , Liu Liang , Qin Su , Guo Jing , Su Cheng-Yong
Published: January 2019

A highly robust hybrid material Calix-3-TiO2 based on calixarene dye and TiO2 is prepared by a facile sol–gel method for the first time. When Pt nanoparticles are introduced onto the hybrid, the catalysts display efficient and persistent photocatalytic water splitting activities.
Flower-like MoS2 nanocrystals: a powerful sorbent of Li+ in the Spiro-OMeTAD layer for highly efficient and stable perovskite solar cells
Authors: Jiang Lu-Lu , Wang Zhao-Kui , Li Meng , Li Chun-He , Fang Peng-Fei , Liao Liang-Sheng
Published: January 2019

A powerful sorbent of Li+, flower-like MoS2 nanocrystals, was doped into the Spiro-OMeTAD layer for highly efficient and stable perovskite solar cells.
Direct synthesis of porous graphitic carbon sheets grafted on carbon fibers for high-performance supercapacitors
Authors: Zhang Xiaohua , Li Hengxiang , Qin Bing , Wang Qun , Xing Xiaohan , Yang Donghua , Jin Li'e , Cao Qing
Published: January 2019

Porous graphitic carbon sheets grafted on microfibers were synthesized with the aid of a green activating–graphitizing agent K3[Fe(C2O4)3].
Hierarchical spheres constructed by ultrathin VS2 nanosheets for sodium-ion batteries
Authors: Wang Jianbiao , Luo Ningjing , Wu Junxiu , Huang Shuping , Yu Ling , Wei Mingdeng
Published: January 2019

Hierarchical VS2 spheres assembled from ultrathin nanosheets exhibited superior electrochemical performance when employed as an anode material in SIBs.
Multi-biofunctional properties of three species of cicada wings and biomimetic fabrication of nanopatterned titanium pillars
Authors: Shahali Hesam , Hasan Jafar , Mathews Asha , Wang Hongxia , Yan Cheng , Tesfamichael Tuquabo , Yarlagadda Prasad K. D. V.
Published: January 2019

Inspired by the surface topography of cicada wings, Ti nanopillars were fabricated. The fabricated surfaces were bactericidal and cytocompatible.
The effect of manganese oxidation state on antiferromagnetic order in SrMn1−xSbxO3 (0 < x < 0.5) perovskite solid solutions
Authors: Bazuev Gennady V. , Tyutyunnik Alexander P. , Korolev Alexander V. , Suard Emmanuelle , Tai Cheuk-Wai , Tarakina Nadezda V.
Published: January 2019

Two ranges of mixed-valence manganese (Mn3+/Mn4+) SrMn1−xSbxO3 solid solution and corresponding magnetic structures were described for the first time.
Strain-controlled optical transmittance tuning of three-dimensional carbon nanotube architectures
Authors: Li Yang , Owuor Peter Samora , Dai Zhendong , Xu Quan , Salvatierra Rodrigo V. , Kishore Sharan , Vajtai Robert , Tour James M. , Lou Jun , Tiwary Chandra Sekhar , Ajayan Pulickel M.
Published: January 2019

This work develops a CNT/PDMS composite structure with tunable optical transmittance in response to a strain of less than 0.4%.
A novel Na3La(PO4)2/LaPO4:Eu blue-red dual-emitting phosphor with high thermal stability for plant growth lighting
Authors: Xia Mao , Wu Xianbo , Zhong Yuan , Zhou Zhi , Wong Wai-Yeung
Published: January 2019

The thermal stability of Na3La(PO4)2:Eu phosphors can be enhanced by Li ion doping due to crystal defects.
Recent breakthroughs in thermally activated delayed fluorescence organic light emitting diodes containing non-doped emitting layers
Authors: Godumala Mallesham , Choi Suna , Cho Min Ju , Choi Dong Hoon
Published: January 2019

Despite the high performance of OLEDs consisting of host–guest blend systems in the emissive layer, OLEDs containing a single molecule as an emitter in the emissive layer (i.e. non-doped OLEDs) have significant advantages including easy fabrication procedures and enhanced device stability.
Correction: Enantioselective copper catalysed intramolecular C–H insertion reactions of α-diazo-β-keto sulfones, α-diazo-β-keto phosphine oxides and 2-diazo-1,3-diketones; the influence of the carbene substituent
Authors: Shiely Amy E. , Slattery Catherine N. , Ford Alan , Eccles Kevin S. , Lawrence Simon E. , Maguire Anita R.
Published: January 2019

Correction for ‘Enantioselective copper catalysed intramolecular C–H insertion reactions of α-diazo-β-keto sulfones, α-diazo-β-keto phosphine oxides and 2-diazo-1,3-diketones; the influence of the carbene substituent’ by Amy E. Shiely et al., Org. Biomol. Chem., 2017, 15, 2609–2628.
Mathematical Abilities in Children With Developmental Language Disorder
Authors: Cross Alexandra M. , Joanisse Marc F. , Archibald Lisa M. D.
Published: January 2019

Purpose

This review article provides a scoping review of the literature on mathematical abilities in developmental language disorder (DLD). Children with DLD typically struggle with learning in school; however, the mechanism by which DLD impacts academic success is unclear. Mathematics involves demands in the multiple domains and therefore holds potential for examining the relationship between language and academic performance on tasks mediated by verbal and nonverbal demands.

Method

A scoping review was performed via computerized database searching to examine literature on mathematics and DLD. The 21 review articles meeting inclusion criteria compared children with typical development or DLD on various tasks measuring numerical cognition.

Results

Children with DLD consistently performed below peers with typical development on number transcoding, counting, arithmetic, and story problem tasks. However, performance was similar to peers with typical development on most number line, magnitude comparison, and conceptual mathematics tasks.

Conclusions

The findings suggest a relationship between DLD and mathematics was characterized by more detrimental performance on tasks with higher verbal demands. Results are discussed with respect to typical academic curricula and demonstrate a need for early identification and intervention in DLD to optimize academic outcomes.
Use of Simulation With Standardized Patients in AAC Pre-Service Training: Potentiating Practical Learning
Authors: Gutmann Michelle
Published: January 2019

In this article, a brief overview of simulation is presented as a way to contextualize discussion of its application to pre-service clinical skill learning in augmentative and alternative communication (AAC). The emphasis of this article is on the process of standardized patient implementation rather than its product. The steps involved in preparing for, implementing, and evaluating this learning activity will be discussed, as will directions for further relevant activity and research.
High‐gain circularly polarised Fabry–Perot antenna with tapered frequency selective surface for X‐band
Authors: Nguyen T.K.
Published: January 2019

A design of partially reflective surface (PRS) for Fabry–Perot resonator antenna to simultaneously achieve axial ratio bandwidth and broadside‐gain enhancement is demonstrated. A simple wideband stacked patch antenna that operates at X‐band (8–12 GHz) is used as a radiation source to demonstrate the performance of this design. The proposed antenna has a PRS array comprising of 11 × 11 unit cells tapered which features 16.9 dBi maximum broadside gain and 12.7% common bandwidth from 8.8 to 10.0 GHz.
0.55–1.8 V, 7.5 nW, 225.5 mV, CMOS‐only subthreshold voltage reference
Authors: Duan Quanzhen , Wang Xuan , Huang Shengming , Ding Yuemin , Meng Zhen , Shi Kai
Published: January 2019

This Letter presents a wide supply voltage range, ultra‐low power, and CMOS‐only subthreshold voltage reference. A complementary‐to‐absolute‐temperature () generator implemented by a standard transistor and a high transistor is used to obtain a negative temperature coefficient (TC) voltage. While, a proportional‐to‐absolute‐temperature () generator adopts a unbalanced differential pair to achieve a positive TC voltage. With both generator and generator, the CMOS‐only voltage reference circuit is proposed, which is implemented in a standard CMOS process. The simulation results show that the mean output reference voltage is 225.5 mV at room temperature with a supply voltage as low as 0.55 V, meanwhile the output reference voltage achieves a TC of with a temperature range from to . With a supply voltage of 0.55 V and at room temperature, the current consumption is 13.6 nA and the power consumption is only 7.5 nW. The reference circuit correctly works with a supply voltage ranging from 0.55 to 1.8 V, and it obtains the line regulation of 0.0022%/V.
Voltage stability constrained line‐wise optimal power flow
Authors: Mohamed Amr Adel , Venkatesh Bala
Published: January 2019

The purpose of optimal power flow (OPF) is to optimise an objective function subject to a set of operating constraints. It remains an active research area because of using the bus‐wise power balance equations, which leads to a non‐linear solution space, resulting in OPF yielding local optimal solutions, thereby causing significant economic loss. In this study, first, a new line‐wise OPF (LWOPF) formulation is proposed. Thereafter, a maximum loadability factor, as a voltage collapse indicator, is derived and combined with LWOPF constraints to form a voltage stability constrained LWOPF (VSCLWOPF) model. As the line‐wise power balance equations are based upon the square of voltage magnitudes, it results in significant improvement in the solution space and lower‐order terms in all computational steps. The LWOPF and VSCLWOPF formulations, are solved using non‐linear optimisation technique, tested on several benchmark and real power systems. Results show that the proposed LWOPF is accurate, provides monotonic convergence, and scales well for large systems. It provides a better solution and is consistently faster, up to twice the speed of MATPOWER, due to reduced computational needs. Results of VSCLWOPF show that, for the same voltage stability level, the solution costs less than that obtained by classical bus‐wise OPF.
Fault‐cause identification method based on adaptive deep belief network and time–frequency characteristics of travelling wave
Authors: Liang Hanqing , Liu Yadong , Sheng Gehao , Jiang Xiuchen
Published: January 2019

Accurate fault‐cause identification is highly important to the fault analysis of overhead transmission lines (OTLs). In order to improve the efficiency and accuracy of fault identification, this study proposes a fault identification method based on the ADBN (adaptive deep belief network) model and the time–frequency characteristics of a travelling wave. According to the mechanisms of different OTL faults, the appropriate time–frequency characteristic parameters of the fault current travelling wave were selected as the input of the ADBN model, and the fault‐type labels were selected as the output. The ADBN model introduces the idea of adaptive learning rate into CD (contrastive divergence) algorithm and improves its performance with self‐adjusting learning rate. The parameters of the ADBN model were pre‐trained with the improved CD algorithm and adjusted by back propagation algorithm with the labels of the samples. The performance of the ADBN model was verified by field data, and the accuracy of fault identification was analysed under different model parameters, characteristic parameters, and sample sizes. The results showed that the model helps to characterise the inherent relationship between characteristic parameters and fault causes, and the proposed method can effectively identify different fault causes in OTLs.
Accelerated seam carving for image retargeting
Authors: Patel Diptiben , Raman Shanmuganathan
Published: January 2019

Display of images on different display devices having varied size and aspect ratio requires one to resize them. Many attempts have been made to perform content‐aware image retargeting while generating an image compatible with a target display size. Seam carving is one of the image retargeting operators which alters the size of an image by removing least energy pixels. However, it requires high computational time in order to perform retargeting. In this study, the authors accelerate the naive seam carving process by removal or insertion of multiple pixel wide batch seam in a single iteration rather than a single pixel wide seam. Along with the energy of pixels to be removed, inserted energy after the removal of a batch seam is also minimised in order to prevent the inclusion of false edges. The width of a batch seam is a critical factor which is made adaptive during the retargeting process to preserve the energy of an image. They have shown a significant decrease in computational time with the increase in the width of a batch seam. They have compared the proposed technique with other state‐of‐the‐art image retargeting operators using different quality assessment metrics and visual results.
Simulation ofdrag reduced conductors based on a new accurate model using finite element method
Authors: Wang Peijin , Gao Yaochong , Wang Hongwei , Qiao Mu , Xia Miao , Li Qingquan
Published: January 2019

For improving the reliability of power transmission lines, it is urgent to reduce the horizontal load and wind deviation, while replacing with drag reduced conductors can achieve it without changing the original transmission line path. On the basis of the theory of turbulence simulation, a new model of drag reduced conductor with accurate traverse section is built using finite element method software. This new model is applicable for calculating the air flow field around the conductor, for studying the effect of wind speed, attack angle and conductor section shape on the drag coefficients of both single and bundle conductors. Compared with aluminum conductor steel reinforced (ACSR)in the same diameter, drag reduced conductor has lower drag coefficient and decreases more significantly with the increase of wind speed. A new research method for the development of new conductors and the galloping of overhead conductors is presented.
A novel high‐conversion‐ratio bidirectional three‐phase DC–DC converter
Authors: Wang Fan , Wang Yubin , Zhang Fengyi , Teng Changpeng
Published: January 2019

A novel high‐conversion‐ratio bidirectional three‐phase DC–DC converter is proposed in this paper, which features not only low switch voltage and current stresses, but also automatic voltage balancing and current sharing ability without adding extra circuit or control method. Both total current ripple of the inductors and total voltage ripple of the capacitors are reduced by using interleaving technology. The proposed converter is suitable for fields of renewable energy, electric vehicles, energy storage systems and so on. The proposed topology can achieve three times the conversion ratio of the traditional three‐phase DC–DC converter by only adding two capacitors. High voltage conversion ratio can be achieved with a moderate duty cycle which can avoid the extreme working condition existed in the traditional boost converter. Control method, operating principle, voltage conversion ratio, characteristics of automatic voltage balancing and current sharing, voltage and current stresses current and voltage ripples are analyzed in more detail. Finally, feasibility and superiority of the proposed converter are verified by software simulation and prototype experiment.
Frequency‐domain‐based complete loss model for 10 kV/1 MW solid‐state transformer
Authors: Liu Tao , Hao Xiang , Liu Weizeng , Li Zhi , Yu Xiangen , Zeng Jie , He Jianzong
Published: January 2019

This study proposes a frequency‐domain‐based loss model for dual active bridge (DAB) inside modular multi‐level cascaded solid‐state transformer (SST). Previously, the loss model is mainly derived in the time domain and requires enormous modelling effort. This study establishes the frequency‐domain model of DAB. Based upon that, the switching loss, conduction loss and ferrite loss are derived. The loss model is then used to determine the control scheme for SST. The effect of a PR controller and notch filter on DAB is compared, and the detailed loss analysis is also presented. For the DAB control with a notch filter, it obtains higher efficiency and is implemented in the SST system. The experiment results in both DAB and SST systems verify the effectiveness of the proposed methods.
Determining thermal dust emission from Planck HFI data using a sparse, parametric technique
Authors: Irfan Melis O. , Bobin Jérôme , Miville-Deschênes Marc-Antoine , Grenier Isabelle
Published: January 2019

Context. The Planck data releases have provided the community with submillimetre and full-sky radio observations at unprecedented resolutions. We make use of the Planck 353, 545, and 857 GHz maps alongside the IRAS 3000 GHz map. These maps contain information on the cosmic microwave background (CMB), cosmic infrared background (CIB), extragalactic point sources, and diffuse thermal dust emission.

Aims. We aim to determine the modified black-body (MBB) model parameters of thermal dust emission in total intensity and produce all-sky maps of pure thermal dust, having separated this Galactic component from the CMB and CIB.

Methods. This separation is completed using a new, sparsity-based, parametric method, Parameter Recovery Exploiting Model Informed Sparse Estimates (premise). The method is comprised of three main stages: 1) filtering the raw data to reduce the effect of the CIB on the MBB fit; 2) fitting an MBB model to the filtered data across super-pixels of various sizes determined by the algorithm itself; and 3) refining these super-pixel estimates into full-resolution maps of the MBB parameters.

Results. We present our maps of MBB temperature, spectral index, and optical depth at 5 arcmin resolution and compare our estimates to those of GNILC and to the two-step MBB fit presented by the Planck Collaboration in 2013.

Conclusions. By exploiting sparsity we avoid the need for smoothing, enabling us to produce the first full-resolution MBB parameter maps from intensity measurements of thermal dust emission. We consider the premise parameter estimates to be competitive with the existing state-of-the-art solutions, outperforming these methods within low signal-to-noise regions as we account for the CIB without removing thermal dust emission through oversmoothing.
Nutritional quality of the fresh and processed grey mullet (Mugilidae) products: a short review including data concerning fish from freshwater
Authors: Ben Khemis Ines , Hamza Neila , Sadok Saloua
Published: January 2019

This short review compiles the data concerning the quality of flesh, processed roe and smoked fillets of grey mullets (Mugilidae), including when available the data concerning the fish from freshwater and in particular those from Tunisian reservoirs. The biochemical and mineral composition of the fish, the nutritional benefits and the potential health risks related to the consumption of fish products are discussed with regard to human health, taking into consideration the nutritional recommendations and normative toxicological limits defined by leading health authorities. Flesh proximal compositions of fish from freshwater are relatively scarce, but the few available lipid data are within the very large proximal range (from less than 1% to more than 11%) reported for grey mullets in general. Most of the studies reveal the predominance of unsaturated fatty acids with a substantial proportion ω3 type not only for fish from marine environment but also for those from freshwater. Flesh constitutes a source of essential amino acids and mineral nutrients too. The mullets are generally reported to be safe for human consumption except the fish from heavily contaminated zones. Globally, it should be regarded as an interesting contribution to a healthy diet. The mullets are also greatly appreciated for the production of salted and dried roe as well as smoked fillets, which allow increasing their economic value while preserving products health beneficial attributes. Data concerning processing mullet's roe from freshwater are missing, but it may be supposed that these roes have acceptable texture, taste and flavour as they are highly sought by connoisseurs. It is recommended to perform studies on the qualities of freshwater mullet's roe and to look for labelling the origin for both the roes and the smoked fillets of mullet from Tunisian reservoirs dedicated to the production of drinking water as it would guarantee that the fish come from unpolluted environments.
Doppler-Duplex-Sonografie der hirnversorgenden Gefäße – Fallstricke
Authors: Uphaus Timo , Gröschel Klaus
Published: January 2019

Dieser CME-Fortbildungsartikel soll einen strukturierten Untersuchungsgang der Doppler- und Duplexsonografie der hirnversorgenden Gefäße vermitteln und dabei auf besondere Schwierigkeiten / Fallstricke hinweisen. Im Einzelnen werden Kriterien zur Stenosegraduierung, häufig auftretende Fehlermöglichkeiten sowie anatomische und methodische Besonderheiten dargestellt.
Can a University Reproductive Medicine Centre Be Financed Under the Pre-Existing General Conditions in Germany?
Authors: Hildebrandt Thomas , Oversohl Nicola , Dittrich Ralf , Lotz Laura , Beckmann Matthias , Lux Michael
Published: January 2019

Background Reduced resources for financing healthcare services are available to the German health system. For this reason, demographic development represents one of the greatest challenges for the German health system. Reproductive medicine can offer potential solutions and counteract the ageing of the population through an increase in the birth rate. Most reproductive medical treatments take place in private centres. For the development of new, innovative therapeutic approaches, continuing education and scientific advancement, university centres are essential.

Materials and Methods Using multistage contribution margin accounting, IVF and ICSI treatments at the University Fertility Centre Franken (UFF) were investigated in 2012. The cost situation from the perspective of the patient couple and the statutory payer were contrasted with the cost and revenue situation of the service provider as a university reproductive medicine centre.

Results The costs for the patient couple for an IVF treatment cycle were 538.71 € and for an ICSI cycle, 700.07 €. For the payer, the costs, including the university flat rate (194.80 €) to be paid, amount to 733.51 € for an IVF cycle and 894.87 € for an ICSI cycle. The payments of the patient couple and the payer were added and this yielded total costs of 1272.22 € and 1594.94 €. The University Fertility Centre Franken, as a part of the Department of Gynaecology of the Erlangen University Hospital, incurred costs of 1364.47 € for an IVF treatment cycle and 1423.48 € for an ICSI treatment cycle. In addition, the OB/GYN clinic had to pay the university hospital a flat general expense rate of 14.9% of the income. There was thus a loss for the department of gynaecology of 281.81 € for an IVF cycle and 66.19 € for an ICSI cycle.

Discussion From the perspective of a university reproductive medicine centre, IVF and ICSI treatments currently cannot be performed in a cost-covering manner. At the same time, a reproductive medicine treatment cycle represents a significant financial burden on the patient couple due to only partial cost coverage by most statutory health insurance funds. This therefore demonstrates a need for action in health policy to revise and, in the interest of the patient couples, reproductive medicine centres and, not least of all, in the interest of society, to improve existing cost absorption policies and thus also benefit from this as a society over the long term.
A prospective multicenter observational study evaluating the risk of periendoscopic events in patients using anticoagulants: the Osaka GIANT Study
Authors: Inoue Takuya , Iijima Hideki , Yamada Takuya , Okuyama Yuji , Takahashi Kanae , Nishida Tsutomu , Ishihara Ryu , Akasaka Tomofumi , Kobayashi Ichizo , Kuroshima Toshio , Yasunaga Yuichi , Yamamoto Katsumi , Nakahara Masanori , Doi Yoshinori , Nakajima Sachiko , Mukai Akira , Masuda Eiji , Yoshii Shunsuke , Hayashi Yoshito , Minamiguchi Hitoshi , Sakata Yasushi , Yamamoto Kouji , Tsujii Masahiko , Takehara Tetsuo
Published: January 2019

Background and study aims An increasing number of patients have been using anticoagulants including anti-vitamin K antagonists (VKAs) and direct oral anticoagulants (DOACs); however, in patients using anticoagulants, limited data are available with regard to the risks of gastrointestinal bleeding and thromboembolic events during the peri-endoscopic period. We aimed to evaluate the peri-endoscopic bleeding and thrombotic risks in patients administered VKAs or DOACs.

Patients and methods Consecutive patients using anticoagulants who underwent endoscopic biopsy, mucosal resection, or submucosal dissection were prospectively enrolled across 11 hospitals. The primary outcome assessed was difference in incidence of post-procedural gastrointestinal bleeding in patients using VKAs and DOACs. Duration of hospitalization and peri-procedural thromboembolic events were also compared.

Results We enrolled 174 patients using VKAs and 37 using DOACs. In total, 16 patients using VKA were excluded from the analysis because of cancellation of endoscopic procedures and contraindications to the use of DOACs; 128 (81 %) patients using VKAs and 17 (46 %) using DOACs received heparin-bridging therapy (HB). The rate of post-procedural gastrointestinal bleeding in DOAC users was similar to that in VKA users (16.2 % vs. 16.4 %, P = 1.000). Duration of hospitalization was significantly longer in patients using VKAs than in those using DOACs (median 15 vs. 7 days, P < 0.0001). Myocardial infarction occurred during pre-endoscopic HB in one patient using VKAs.

Conclusion DOAC administration showed similar post-procedural gastrointestinal bleeding risk to VKA administration in patients undergoing endoscopic procedures, but it shortened the hospital stay.
Kognitive Defizite der Elektrokonvulsionstherapie bei Depressionen: Moderierende Variablen und neuropsychologische Testverfahren
Authors: Margittai Zsofia , Yardimci Tugba , Marin Dominik , Kamp Daniel , Cordes Joachim , Kujovic Milenko
Published: January 2019

Aufgrund der hohen Wirksamkeit der Elektrokonvulsionstherapie (EKT) in der leitliniengerechten Behandlung therapieresistenter depressiver Episoden und der klinischen Bedeutung kognitiver Beeinträchtigungen ist eine Optimierung des Nebenwirkungsmanagements notwendig. Da kognitive Nebenwirkungen des Verfahrens in Verbindung mit krankheitsbedingten Beeinträchtigungen das soziale Funktionsniveau und das subjektive Wohlbefinden reduzieren können, sollten eine umfassende Aufklärung und ein spezifisches Monitoring potenzieller kognitiver Nebenwirkungen erfolgen. Diese Übersichtsarbeit stellt die klinische Relevanz und die Messverfahren kognitiver Nebenwirkungen dar, die bei einer EKT-Behandlung auftreten können. Es wird diskutiert, welche patientenindividuellen, technischen und pharmakologischen Faktoren die Auswirkung der EKT auf die Kognition moderieren können. Ferner werden die Empfehlungen hinsichtlich des Monitorings kognitiver Nebenwirkungen in nationalen und internationalen Leitlinien zusammengefasst. Bei der EKT werden Beeinträchtigungen der globalen Kognition sowie anterograde und retrograde Gedächtnisstörungen beobachtet. In den ersten beiden Bereichen scheinen diese nur vorübergehend von Bedeutung zu sein, wohingegen das Ausmaß der retrograden Gedächtnisdefizite, darunter vor allem das des autobiografischen Gedächtnisses, nach aktuellem Kenntnisstand nicht klar definiert ist und potenziell länger anhaltend beeinträchtigt sein kann. Ein kontroverses Thema ist diesbezüglich auch die Frage nach geeigneten Testverfahren zur Erfassung dieser Funktionen, um die Dauer möglicher Leistungsabfälle und den Schweregrad ermitteln zu können. Im klinischen Kontext finden hierbei unterschiedliche Verfahren Verwendung, teilweise wird eine Symptomgraduierung aufgrund von Zeitmangel oder methodischer Unsicherheit nicht durchgeführt. Die vorliegenden nationalen und internationalen Leitlinien machen sehr unterschiedliche Vorgaben, wie die kognitiven Beeinträchtigungen im Laufe der Therapie beobachtet und dokumentiert werden sollen. Im deutschen Sprachraum werden keine konkreten Handlungsempfehlungen zur Erfassung von kognitiven Nebenwirkungen erteilt. In diesem Zusammenhang wird eine Überarbeitung der aktuellen Leitlinien empfohlen sowie weiterer Forschungsbedarf identifiziert, um die Erfassung und das Monitoring der Nebenwirkungen zu verbessern und Patienten mit einer erhöhten Anfälligkeit zu identifizieren.
Extracellular Vesicles in Liver Diseases: Diagnostic, Prognostic, and Therapeutic Application
Authors: Urban Sabine , Mocan Tudor , Sänger Hanna , Lukacs-Kornek Veronika , Kornek Miroslaw
Published: January 2019

Extracellular vesicles, comprising exosomes, microvesicles, and apoptotic bodies, represent an emerging field in disease diagnostics and prognosis. They can be isolated from peripheral blood of patients as well as from other body fluids and can therefore be considered a minimally invasive liquid biopsy screening tool. Especially their surface antigen composition can reveal information about disease backgrounds. For several liver diseases, including fatal hepatocellular and cholangiocellular carcinoma as well as other nonmalignant liver disorders such as nonalcoholic fatty liver disease, alcoholic hepatitis, or acute liver failure, it has been shown that extracellular vesicle (EV) surface profiling can be useful for disease diagnosis and prognosis. This review focuses on latest advances in these areas to improve liver disorder detection and management. Additionally, the authors will discuss possible therapeutic applications of EVs in liver diseases, which might be a potent treatment option in the future.
Impact of Telemedicine Tools on Record Keeping and Compliance in Haemophilia Care
Authors: Banchev A. , Goldmann G. , Marquardt N. , Klein C. , Horneff S. , Langenkamp R. , Frankenberger T. , Oldenburg J.
Published: January 2019

Background Record keeping is integral to home treatment for haemophilia. Issues with paper diaries include questionable compliance, data validity and quality. Implementation of electronic diaries (e-diaries) in haemophilia patients could improve documentation of home treatment.

Aim This article evaluates the effects of an e-diary, Haemoassist, on recording and patient compliance with therapy.

Patients and Methods An explorative study was used to assess the sequential use of paper diaries and e-diaries by 99 patients with severe haemophilia A or B and 1 with severe factor VII deficiency. Median age was 41 years. Information was obtained from paper records for 3 years preceding the introduction of an electronic record system and the first 6 to 12 months of Haemoassist use. Data from the 3-year period were averaged. Missing data for rounded 12 months of e-diary use were extrapolated to correspond to a full year.

Results Enhancement of 23% in record delivery was observed for the period of Haemoassist use (p = 0.013). Twenty-one percent increase in patients’ compliance for data reporting (from 65% 35 to 86% 22, p = 0.003) and 16% increase for documentation of bleedings (from 68 to 84% of patients, p = 0.01) were detected. Compliance to prescribed therapy of patients for the whole studied period improved by 6% (from 82% ± 29 to 88% ± 25, p = 0.05). Major advances were demonstrated predominantly in the age groups of between 13 and 20 and 21 and 40 years.

Conclusion e-Diaries' use enables improved recording of information about patients' home treatment and bleeding episodes. Enhanced compliance with therapy may be a further benefit.