bluuebunny/crossref_metadata_2025 huggingface dataset:
Solvent-controlled metal coordination polymers of Co(ii) with different topological structures and properties
Authors: Ma Zhi Long , Wang Meng Chen , Tian Li , Liu Zhong Yi
Published: September 2021

Three multidimensional Co-polymers were obtained. Co-1 exhibits as a 2D layer. Co-2 displays as a tetranodal (4,4,5,6)-connected 3D MOFs. Co-3 is a binodal (4,6)-connected 3D framework.
The necessity of periodic boundary conditions for the accurate calculation of crystalline terahertz spectra
Authors: Banks Peter A. , Burgess Luke , Ruggiero Michael T.
Published: September 2021

Terahertz vibrational spectroscopy has emerged as a powerful spectroscopic technique, providing valuable information regarding long-range interactions – and associated collective dynamics – occurring in solids.
Highly efficient T-shaped deep-red thermally activated delayed fluorescence emitters: substitution position effect
Authors: Zhang Kai , Fan Jianzhong , Wang Chuan-Kui , Lin Lili
Published: September 2021

Modulating the relationship between molecular structures and luminescence properties as well as charge transfer properties of deep-red thermally activated delayed fluorescence (TADF) emitters has always been a great challenge.
Multifunctional Ni–Mg bimetal-activated Zn(O,S) for hydrogen generation and environmental remediation with simulated solar-light irradiation
Authors: Abdullah Hairus , Shuwanto Hardy , Kuo Dong-Hau
Published: September 2021

NMZ-S10 is a powerful and robust photocatalyst that is capable of conducting the hydrogen evolution reaction, chromium (Cr6+) reduction, mixed-dye degradation, and hydrogenation reaction under solar light illumination.
Determining intrinsic stark tuning rates of adsorbed CO on copper surfaces
Authors: Chang Xiaoxia , Xiong Haocheng , Xu Yifei , Zhao Yaran , Lu Qi , Xu Bingjun
Published: September 2021

This work reports a general and effective strategy of determining the intrinsic Stark tuning rate by removing the impact of the dynamical coupling of adsorbed CO on the Cu surface with surface enhanced infrared absorption spectroscopy (SEIRAS).
Huge dielectric constants of the ferroelectric smectic-A phase in bent-shaped dimeric molecules
Authors: Nakasugi Shigemasa , Kang Sungmin , Watanabe Junji , Ishizaki Hiroki , Sone Masato
Published: September 2021

We present the dielectric relaxation properties of the ferroelectric smectic-A (SmAPF) phase formed by a mixture of bent-shaped dimeric molecules α,ω-bis(4-alkoxyanilinebenzylidene-4′-carbonyloxy)pentanes with different alkyl chain lengths.
An overview on the synthesis of carbohydrate-based molecules with biological activity related to neurodegenerative diseases
Authors: Lopes João Paulo B. , Silva Luana , Lüdtke Diogo S.
Published: September 2021

Herein, we discuss the synthesis of carbohydrate derivatives exhibiting high inhibitory activity against cholinesterase enzyme and their potential therapeutic use for the treatment of Alzheimer's disease.
2-Difluoromethylpyridine as a bioisosteric replacement of pyridine-N-oxide: the case of quorum sensing inhibitors
Authors: Tung Truong Thanh , Nguyen Quoc Thang
Published: September 2021

Herein, we demonstrate that 2-difluoromethylpyridine is a bioisosteric replacement of pyridine-N-oxide. This work could open a new path for bioisosteric replacement in drug discovery and development.
Gold-iron oxide nanohybrids: insights into colloidal stability and surface-enhanced Raman detection
Authors: Schwaminger Sebastian P. , Bauer David , Fraga-García Paula
Published: September 2021

Colloidal stability affects multiple properties at the nanoscale. Not only the synthesis of hybrid gold-iron oxide nanoparticles but also their ability to enhance Raman signals (SERS) is determined by their surface modification.
Synthesis and CO2 photoreduction of two 3d–4f heterometal–organic frameworks
Authors: Yang Yu , Fu Yaomei , You Siqi , Li Mingyue , Qin Chao , Zhao Liang , Su Zhongmin
Published: September 2021

Two 3d–4f heterometal–organic frameworks with similar structures were synthesized by a steam-assisted conversion method and exhibited high activity and selectivity for the photoreduction of CO2.
Tuning the electronic structure of NiCoVOx nanosheets through S doping for enhanced oxygen evolution
Authors: Ma Haibin , Sun Changning , Wang Zhili , Jiang Qing
Published: September 2021

The S4.06-NiCoVOx/NF electrode exhibits enhanced electrocatalytic activity for the oxygen evolution reaction via optimizing the electronic structure of active sites induced by S doping.
Research on the mechanism of particle deposit effects and process optimization of nanosecond pulsed laser truing and dressing of materials
Authors: Cai Song , Liu Wenhao , Long Saiqiong , Zhang Yang , Ming Rui , Ming Xingzu , Xu Jianfeng
Published: September 2021

Plasma experiments for LTDBDGW were carried out with LTDBDGW. A high-speed camera captured the evolution of plasma expansion.
Hierarchical NaFePO4 nanostructures in combination with an optimized carbon-based electrode to achieve advanced aqueous Na-ion supercapacitors
Authors: Biswas Sudipta , Mandal Debabrata , Singh Trilok , Chandra Amreesh
Published: September 2021

An aqueous supercapacitor with hollow NaFePO4 microsphere structures combined with rGO shows as high as a 1.7 V working potential window and can deliver a maximum energy density of 25.29 W h kg−1 capacity retention.
Efficient artificial light-harvesting system constructed from supramolecular polymers with AIE property
Authors: Xiao Tangxin , Shen Yong , Bao Cheng , Diao Kai , Ren Dongxing , Qian Hongwei , Zhang Liangliang
Published: September 2021

An artificial light-harvesting system based on supramolecular polymers has been successfully constructed in aqueous media, which displays tunable emission with efficient energy transfer and high antenna effect.
Controllable crystal form transformation and luminescence properties of up-conversion luminescent material K3Sc0.5Lu0.5F6: Er3+, Yb3+ with cryolite structure
Authors: Yan Zhaoliang , Guo Qingfeng , Liao Libing , Shuai Pengfei , Huang Feifei , Mei Lefu
Published: September 2021

Controllable crystal form transformation can effectively influence the up-conversion luminous intensity of cryolite materials.
Retraction: Boric acid in magnetized water: clean and powerful media for synthesis of 3,4-dihydropyrimidin-2(1H)-ones
Authors: Khakyzadeh Vahid , Moosavi-Zare Ahmad Reza , Sheikhaleslami Sahra , Ehsani Amir , Sediqi Salbin , Rezaei-Gohar Mohammad , Jalilian Zahra
Published: September 2021

Retraction of ‘Boric acid in magnetized water: clean and powerful media for synthesis of 3,4-dihydropyrimidin-2(1H)-ones’ by Vahid Khakyzadeh et al., RSC Adv., 2021, 11, 22751–22755. DOI: 10.1039/D1RA03769B
Activation of β-diketones for CO2capture and utilization
Authors: Assaf Khaleel I. , Qaroush Abdussalam K. , Okashah Ibrahim K. , Al-Qaisi Feda'a M. , Alsoubani Fatima , Eftaiha Ala'a F.
Published: September 2021

β-Diketones are used for CO2sequestration and utilization which was made possible due to their dual Brønsted acid/Lewis base character upon activation using a superbase,1,8-diazabicyclo[5.4.0]undec-7-ene or zinc bromide, respectively.
Visualizing electron delocalization in contorted polycyclic aromatic hydrocarbons
Authors: Artigas Albert , Hagebaum-Reignier Denis , Carissan Yannick , Coquerel Yoann
Published: September 2021

Electron delocalization in contorted polycyclic aromatic hydrocarbon (PAH) molecules was examined through 3D isotropic magnetic shielding (IMS) contour maps built around the molecules using pseudo-van der Waals surfaces.
Understanding why poly(acrylic acid) works: decarbonylation and cross-linking provide an ionically conductive passivation layer in silicon anodes
Authors: Martin Trevor R. , Pekarek Ryan T. , Coyle Jaclyn E. , Schulze Maxwell C. , Neale Nathan R.
Published: September 2021

PAA undergoes decarbonylation during electrode curing to form polyethers that provide a silicon coating that assists Li-ion desolvation and conduction.
Hierarchical superhydrophilic/superaerophobic CoMnP/Ni2P nanosheet-based microplate arrays for enhanced overall water splitting
Authors: Liu Mengzhao , Sun Zhe , Li Shiyan , Nie Xiaowa , Liu Yuefeng , Wang Erdong , Zhao Zhongkui
Published: September 2021

Directly growing hierarchical nanosheet-based microplate phosphide arrays on Ni foam via a hydrothermal phosphorization process creates an active and durable bifunctional electrocatalyst for overall water splitting in both acidic and alkaline media.
Low-temperature sprayed SnOx nanocomposite films with enhanced hole blocking for efficient large area perovskite solar cells
Authors: Zhang Jinbao , Ding Yichuan , Jiang Guochen , Flick Austin C. , Pan Ziyi , Scheideler William J. , Zhao Oliver , Chen Justin P. , Yang Li , Rolston Nicholas , Dauskardt Reinhold H.
Published: September 2021

Open-air, low temperature ultrasonic spray coating of SnO2/SnOx is demonstrated to fabricate large area PSCs and modules. The optimized SnO2/SnOx nanocomposite exhibits significantly enhanced hole-blocking, high efficiencies, as well as good shelf-life stability.
Mechanisms of and three-dimensional morphology changes in fluoride shuttle battery reactions of PbF2 microparticles
Authors: Yamanaka Toshiro , Ogumi Zempachi , Abe Takeshi
Published: September 2021

Fluoride shuttle batteries (FSBs), which are based on defluorination of metal fluorides and fluorination of metals, are expected to become next-generation batteries with high energy densities.
RNA BioMolecular Electronics: towards new tools for biophysics and biomedicine
Authors: Pattiya Arachchillage Keshani G. Gunasinghe , Chandra Subrata , Piso Angela , Qattan Tiba , Artes Vivancos Juan M.
Published: September 2021

Nanoscience has enabled the electrical study of individual biomolecules. This perspective presents the nascent field of RNA BioMolecular Electronics, overviewing the main developments and exploring recent and future potential applications.
Dual-responsive ultrathin 1T-phase niobium telluride nanosheet-based delivery systems for enhanced chemo-photothermal therapy
Authors: Liu Hao , Chen Haolin , Liu Xiaoying , Mo Luoqi , Chen Chao , Guo Zhouyi , Liu Zhiming
Published: September 2021

1T-phase niobium telluride (NbTe2) nanosheets are becoming increasingly important in emerging fields, such as spintronics, sensors and magneto-optoelectronics, due to their excellent physical and chemical properties.
Molecular design and crystallization process control for thin sheet-shaped organic semiconductor crystals with two-dimensional packing
Authors: Wan Yuejuan , Zhang Zejian , Liu Haichao , Zhou Jiadong , Liu Liqun , Deng Jian , Ma Yuguang
Published: September 2021

A macroscopic morphology regulation from rod- to sheet-shaped crystals with the same single structure was realized via building a two-dimensional packed network in plane for organic semiconductors.
Dual-source vapor-processed blue-emissive cesium copper iodine microplatelets with high crystallinity and stability
Authors: Yan Jing-Jing , Ma Jing-Li , Zhang Meng-Yao , Yang Ruo-Ting , Chen Xu , Wu Di , Tian Yong-Tao , Li Xin-Jian , Shi Zhi-Feng
Published: September 2021

All-inorganic Cs3Cu2I5 microplatelets with a blue-emissive feature were prepared by a dual-source chemical vapor deposition method, and demonstrate high crystallinity and stability.
Progress and challenges in understanding the regulation and function of p53 dynamics
Authors: Yang Zhilin , Hanson Ryan L. , Batchelor Eric
Published: September 2021

The dynamics of p53 expression provide a mechanism to increase differentiation between cellular stresses and specificity in appropriate responses. Here, we review recent advances in our understanding of the molecular mechanisms regulating p53 dynamics and the functions of the dynamics in the regulation of p53-dependent cell stress responses. We also compare dynamic encoding in the p53 system with that found in other important cell signaling systems, many of which can interact with the p53 network. Finally, we highlight some of the current challenges in understanding dynamic cell signaling within a larger cellular network context.
Exploring Animal-Assisted Therapy for Creating Rich Communicative Environments and Targeting Communication Goals in Subacute Rehabilitation
Authors: Sherrill Martha , Hengst Julie A.
Published: September 2021

Purpose:

This study continues our research examining the use of animal-assisted therapy (AAT) for patients with acquired neurogenic communication disorders. AAT pairs an animal/handler team with a licensed therapist during sessions to target discipline-specific goals. Our original study focused on dog/handler teams paired with occupational and physical therapists during inpatient rehabilitation sessions. We documented multiple ways that AAT enriched the communicative environment, increasing the amount, complexity, and voluntariness of patient participation. This study focuses on speech-language pathology sessions, comparing communicative environments during AAT and traditional sessions. We also examined the speech-language pathologists' (SLPs') experiences in learning to plan for and target communication goals for patients during AAT sessions.

Method:

This interpretive design combines ethnographic methods with participatory action research. We recruited 10 patients from an inpatient rehabilitation unit and two SLPs. We video-recorded 20 speech-language pathology sessions (one AAT and one traditional for each patient) and conducted 26 interviews. We consulted with SLPs on how to incorporate AAT into their treatment during their preparation time and used self-report measures to track changes in their planning time and confidence across the 6-week study.

Findings:

Across participants, AAT sessions provided richer communicative environments than traditional speech-language pathology sessions as measured by participant talk time, mean length of turns, and use of interactional discourse resources such as narrative use and playful language. The SLPs were rapidly able to adapt their clinical practice to incorporate AAT and displayed rapid and marked decreases in their initial planning time and increases in confidence.

Conclusion:

AAT sessions created meaningful, rich, and complex communicative environments in a clinical space for participants to align with others around a shared interest.
Design and analysis of dual‐stator hybrid excited linear flux switching machine for long‐stroke applications
Authors: Ullah Basharat , Khan Faisal , Milyani Ahmad H. , Ahmad Naseer , Cheema Khalid Mehmood
Published: September 2021

In this work, a novel dual‐stator hybrid excited linear flux switching machine (DSHELFSM) is proposed. The proposed machine is suitable for long‐stroke applications as all the excitation sources are mounted on a short mover and the stator is completely passive. Second, the proposed machine uses ferrite magnets rather than the expensive rare earth permanent magnets (PMs) with the addition of field excitation to achieve flux‐regulation capability at various field currents. An iron bridge that provides an additional path for flux linkage to complete its circuit is used. Various design parameters such as split ratio, stator pole width, width and height of PM, the width of the iron bridge, width of mover's tooth, and stator slot depth are optimised using multivariable geometric optimisation (MGO) while keeping the slot area, electric and magnetic loading constant. The optimised design has improved the performance as compared to the initial design. Furthermore, the results obtained by 2D analysis are verified by 3D analysis. Thermal analysis is carried out to set the operating limit of the proposed machine.
Scheduling‐measure dependent modelling of delay propagation on a single railway line: A matrix transformation approach
Authors: Ma Junfeng , Ma Shan , Hu Wenfeng , Peng Tao , Gui Weihua
Published: September 2021

This paper proposes an analytical delay propagation model for single railway lines based on the max‐plus algebra theory. The scheduling measures taken by dispatchers, including re‐timing and re‐ordering, will be incorporated into our delay propagation model using a matrix transformation method. An analysis of delay propagation under some typical emergencies such as segment blockages and train speed limitation is performed. Numerical simulations show that the proposed train delay propagation model can predict emergency‐induced train delays under different scheduling strategies, thus may give a guidance to improve the traffic management. In the high‐speed railway train system, the scheduling measures taken by dispatchers, such as re‐timing and re‐ordering, can be formulated as a delay propagation model using a matrix transformation method.
A cost‐efficient joint target location and clock bias estimation technique using multiple time step measurements in mobile bistatic sonar
Authors: Zhang Chenglin , Zhang Qunfei , Shi Wentao , Wang Weidong , Xu Jiajie , Pang Feifei
Published: September 2021

Active localization of a stationary target is one key issue in applications of bistatic sonar based on bistatic range (BR) measurement. However, the complex underwater environment makes achieving the synchronization between the transmitted station and the received station difficult. For solving the synchronization problem, this study relies on mobile bistatic sonar to acquire measurement information at multiple time steps. After that, the target location and clock bias are jointly estimated by solving a non‐linear least square problem. To this end, a recursive scheme is proposed to optimise the measurement cost and reduce the impact of the initial value to achieve accurate estimation by taking full advantage of the redundant measurement information. Orthogonal transformation is used to ensure computational efficiency and numerical reliability. The Cramer–Rao Lower Bound (CRLB) is also derived as a lower bound on the error in estimating the target position and clock bias. Simulation results show that the proposed method achieves the CRLB performance and optimises the measurement cost over the small error region under Gaussian noise.
Kinetics and mechanisms of coke and sinter on the coupling reaction to evaluate the integrated effects of coke solution loss reaction on blast furnace processes
Authors: Jin Jin , Wang Qi , Zhang Song
Published: September 2021

The gas–solid coupling reaction kinetics at a constant temperature at each temperature point in the high-temperature cohesive zone in a blast furnace environment were simulated using industrial blast furnace raw material sinter, the low-reactivity conventional coke, and the high-reactivity unconventional coke. In this method, the coupling test of the sinter and coke at constant temperature was performed after a supporting thermogravimetric device was used to carry out pre-reduction, and the coupling reaction of industrial-grade sinter and coke were used to obtain the kinetic data and a mathematical description of the reaction mechanism. The results showed that in the high-temperature cohesive zone, the gasification reaction rate of the low-reactivity coke is the rate-controlling step of the gas–solid coupling reaction rate between the sinter and the conventional low-reactivity coke. By contrast, the rate-controlling step of the gas–solid coupling reaction rate between the sinter and highly-reactive coke is the reduction of sinter. The maximum difference between the initial reaction temperatures of the two kinds of coke samples is 30 °C. Using the same testing standard as coke strength after the reaction (CSR) to test the thermal strength of coke after the coupling reaction, it was found that there is little difference between the thermal strengths (CSRp) of the two kinds of coke after the reaction. The thermal strength of the high-reactivity coke is the worst at 1100 °C, and that of coke with low reactivity is the worst at 1200 °C. The highly reactive coke can operate smoothly in the blast furnace of the cohesive zone and this is explained from the perspective of kinetics. This knowledge provides guidance for the evaluation of the capability of coke to resist solution loss.
Uncertainty quantification of the DTM2020 thermosphere model
Authors: Boniface Claude , Bruinsma Sean
Published: September 2021

Aims: The semi-empirical Drag Temperature Models (DTM) calculate the Earth’s upper atmosphere’s temperature, density, and composition. They were applied mainly for spacecraft orbit computation. We developed an uncertainty tool that we implemented in the DTM2020 thermosphere model. The model is assessed and compared with the recently HASDM neutral density released publicly in 2020.Methods: The total neutral density dataset covers all high-resolution CHAMP, GRACE, GOCE, and SWARM data spanning almost two solar cycles. We constructed the uncertainty model using statistical binning analysis and least-square fitting techniques, allowing the development of a global sigma error model to function the main variabilities driving the thermosphere state. The model is represented mathematically by a nonlinear manifold approximation in a 6-D space parameter.Results: The results reveal that the altitude parameter presents the most notable error range during quiet and moderate magnetic activity (Kp ≤ 5). However, the most considerable uncertainty appears during severe or extreme geomagnetic activities. The comparison with density data provided by the SET HASDM database highlights some coherent features on the mechanisms occurring in the thermosphere. Moreover, it confirms the tool’s relevance to provide a qualitative database of neutral densities uncertainties values deduced from the DTM2020 model.
Post-operative Use of Cervical Orthoses for Subaxial Cervical Spine Injuries – a Survey-based Analysis at German Spine Care Centres
Authors: Raisch Philipp , Jung Matthias K. , Vetter Sven Y. , Grützner Paul A. , Kreinest Michael
Published: September 2021

Introduction There are no evidence-based recommendations for the post-operative treatment and application of soft or rigid cervical collars after operative treatment of injuries of
the subaxial cervical spine. Cervical collars can restrict peak range of motion and serve as a reminder to the patient. However, they can also cause pressure ulcers. The aim of this
online-based survey among German spine centres was to gain an overview of post-operative treatment and the application of soft or rigid cervical collars after surgical treatment of injuries
of the subaxial cervical spine.

Materials and Methods An online-based survey was conducted among 59 spine centres certified by the German Spine Society. It comprised seven items and the option of adding remarks in
the form of open-ended responses.

Results The return rate was 63% (37 out of 59). Of the 37 analysed spine centres, 51% routinely apply a cervical collar post-operatively, 27% apply a soft and 16% a rigid cervical
collar, 8% sequentially apply first a rigid and later a soft cervical collar. Less than half of the spine centres (43%) routinely use no cervical collar. Rigid collars are applied for more
than 6 weeks and soft collars up to 6 weeks at some spine centres. Standardised post-operative treatment plans are common. The selection of the post-operative treatment plan depends
primarily on the type of injury and method of operation and partly on patient age and bone quality. The satisfaction of German spine centres with the current handling of post-operative
treatment of subaxial cervical spine injuries is high.

Discussion The post-operative treatment of injuries of the subaxial cervical spine at German spine centres is heterogeneous, and the evidence on advantages and disadvantages of the
post-operative application of cervical collars is insufficient. Planning and implementation of randomised controlled clinical trials in subaxial cervical spine injuries is challenging.
Anterior Lumbar Interbody Fusion (ALIF) or Transforaminal Lumbar Interbody Fusion (TLIF) for Fusion Surgery in L5/S1 – What Is the Best Way to Restore a physiological Alignment?
Authors: Platz Uwe , Halm Henry , Thomsen Björn , Pecsi Ferenc , Köszegvary Mark , Bürger Nina , Berlin Clara , Quante Markus
Published: September 2021

Study Design A retrospective single center cohort study with prospective collected data from an institutional spine registry.

Objectives To determine whether restoration of lordosis L5/S1 is possible with both anterior lumbar interbody fusion (ALIF) and transforaminal lumbar interbody fusion (TLIF) and to find out which technique is superior to recreate lordosis in L5/S1.

Methods Seventy-seven patients with ALIF and seventy-nine with TLIF L5/S1 were included. Operation time, estimated blood loss), and complications were evaluated. Segmental lordosis L5/S1 and L4/5, overall lordosis, and proximal lordosis (L1 to L4) were measured in X-rays before and after surgery. Oswesery disability index and EQ-5D were assessed before surgery, and 3 and 12 months after surgery.

Results Mean operation time was 176.9 minutes for ALIF and 195.7 minutes for TLIF (p = 0.048). Estimated blood loss was 249.2 cc for ALIF and 362.9 cc for TLIF (p = 0.005). In terms of complications, only a difference in dural tears were found (TLIF 6, ALIF none; p = 0.014). Lordosis L5/S1 increased in the ALIF group (15.8 to 24.6°; p < 0.001), whereas no difference was noted in the TLIF group (18.4 to 19.4°; p = 0.360). Clinical results showed significant improvement in the Oswesery disability index (ALIF: 43 to 21.9, TLIF: 45.2 to 23.0) and EQ-5D (ALIF: 0.494 to 0.732, TLIF: 0.393 to 0.764) after 12 months in both groups, without differences between the groups.

Conclusion ALIF and TLIF are comparable methods for performing fusion at L5/S1, with good clinical outcomes and comparable rates of complications. However, there is only a limited potential for recreating lordosis at L5/S1 with a TLIF.
Robotic Surgery in Crohn's Disease
Authors: Gunnells Drew , Cannon Jamie
Published: September 2021

Surgery for Crohn's disease presents unique challenges secondary to the inflammatory nature of the disease. While a minimally invasive approach to colorectal surgery has consistently been associated with better patient outcomes, adoption of laparoscopy in Crohn's disease has been limited due to these challenges. Robotic assisted surgery has the potential to overcome these challenges and allow more complex patients to undergo a minimally invasive operation. Here we describe our approach to robotic assisted surgery for terminal ileal Crohn's disease.
Clinicopathological Profile of the von Willebrand Disease in a Tertiary Care Centre in Varanasi
Authors: Pandey Pawan K. , Tilak Vijai , Yadav Mahima , Kashyap Neelu
Published: September 2021

Objective The von Willebrand disease (vWD) is one of the most common inherited bleeding disorders in India; however, the diagnostic tests and its interpretation require specialized laboratory and personnel which are not readily available in the eastern part of North India. The purpose of this study is to estimate the relative prevalence of vWD and study the clinical and laboratory features including advanced diagnostic tests.

Methods All patients referred to the pathology department for evaluation of bleeding were evaluated for vWD during a period of 4 years. Clinical and laboratory features were analyzed and reported.

Results A total of 1,126 cases of bleeding manifestations were evaluated, and 237 cases of inherited bleeding disorders were diagnosed; vWD was diagnosed in 38 (16%) of these 237 cases. Advanced diagnostic tests were done in all of these cases.

Conclusion The vWD is among the most common inherited bleeding disorders in the country, second only to hemophilia A. Type-1 vWD was the most frequent with 25 cases (65.7%), followed by type-2N with 7 cases (18.4%).
Praxisbeispiel aus der AMEOS Gruppe: Transformation des Einkaufs als Wertetreiber im Klinikumfeld
Authors: Schönrath Frank
Published: September 2021

Das Gesundheitssystem ist aufgrund der Corona-Krise besonders gefordert. Während Klinik-Kapazitäten ausgebaut und Hygienekonzepte angepasst werden, wird auch der Bereich Einkauf & Logistik mit neuen Aufgaben konfrontiert, um in der Krise eine sichere Klinikversorgung zu gewährleisten. Die AMEOS Gruppe hat als zentrale Leistungseinheit für Einkaufsthemen die KH Einkauf GmbH gegründet.
Zentrale Krankenhauslogistik und Wirtschaftlichkeit: Ohne Logistik läuft nichts!
Authors: Weise Holger
Published: September 2021

… außer die Pflegekräfte, die „laufend“ Patiententransporte erbringen und somit weniger Zeit für die Versorgung der Patienten haben. Warum eine zentrale Logistik auch in kleinen Krankenhäusern obligatorisch sein sollte und sie generell dafür sorgt, dass Krankenhäuser gut orchestriert sind.
Violation of the Bell-CHSH inequality and marginal laws in a single-entity Bell-test experiment
Authors: Aerts Diederik , Sassoli de Bianchi Massimiliano
Published: September 2021

We describe a simple experimental setting where joint measurements performed on a single (classical or quantum) entity can violate both the Bell-CHSH inequality and the marginal laws (also called no-signaling conditions). Once emitted by a source, the entity propagates within the space of Alice’s and Bob’s detection screens, with the measurements’ outcomes corresponding to the entity being absorbed or not absorbed in a given time interval. The violation of the marginal laws results from the fact that the choice of the screen on the side of Alice affects the detection probability on the side of Bob, and vice versa, and we show that for certain screen choices, the Bell-CHSH inequality can be violated up to its mathematical maximum. Our analysis provides a clarification of the mechanisms that could be at play when the Bell-CHSH inequality and marginal laws are violated in entangled bipartite systems, which would not primarily depend on the presence of a bipartite structure but on the fact that the latter can manifest as an undivided whole.
Robust nuclear hyperpolarization driven by strongly coupled nitrogen vacancy centers
Authors: Wunderlich Ralf , Staacke Robert , Knolle Wolfgang , Abel Bernd , Haase Jürgen , Meijer Jan
Published: September 2021

Nuclear magnetic resonance techniques are widely used in the natural sciences but they lack sensitivity. Therefore, large sample volumes or long measurement times are necessary. In this work, we investigate the polarization of bulk 13C nuclei in a diamond above the thermal equilibrium at room temperature. Previously studied mechanisms utilize direct coupling to nitrogen vacancy centers or the additional assistance of substitutional nitrogen impurities for this purpose. We exploit strongly coupled nitrogen vacancy centers as polarization sources. We study two approaches to transfer the optically induced polarization of the electron spins of the nitrogen vacancy centers to nearby nuclear spins. First, the electron-nuclear polarization transfer is achieved by energy matching conditions or, second, by magnetic field sweeps inducing Landau–Zener-like transitions. Simulations according to a quantum mechanical system consisting of two coupled nitrogen vacancy centers and a weakly coupled 13C spin show an excellent agreement with the experimental data. Both approaches allow a reduction of the measurement time by roughly three orders of magnitude.
Mass flux and current density distributions of electrospray plumes
Authors: Thuppul A. , Collins A. L. , Wright P. L. , Uchizono N. M. , Wirz R. E.
Published: September 2021

Performance and lifetime analysis of electrospray thrusters requires accurate knowledge of the mass and charge distributions of the plume. Mass flux and current density distributions were measured for a single capillary electrospray emitter using EMI-Im and found to be substantially different across a wide range of flow rates and emission voltages. Mass flux measurements yield an n∼3 super-Gaussian profile across all flow rates and voltages, while current density measurements change shape from n∼1.5–2.5 super-Gaussian profiles monotonically with decreasing flow rate, where n=1 is Gaussian and higher n values correspond to increasingly more flat-top “super-Gaussian” profiles with steeper drop-off toward higher angles. For increasing flow rate, the mass flux profile grows while maintaining its shape, whereas the current density profile exhibits higher kurtosis, i.e., plumes that distribute proportionately more charge to higher angles. Additionally, higher extraction voltages exhibited tilted emission that led to highly off-axis plumes, ∼10°, for both mass flux and current density. Lifetime and performance assessments of electrospray thrusters must consider that mass flux and current density in the plume display different distribution shapes and trends in shape across changes in extraction voltage and flow rate.
Simulating electronic excitation and dynamics with real-time propagation approach to TDDFT within plane-wave pseudopotential formulation
Authors: Shepard Christopher , Zhou Ruiyi , Yost Dillon C. , Yao Yi , Kanai Yosuke
Published: September 2021

We give a perspective on simulating electronic excitation and dynamics using the real-time propagation approach to time-dependent density functional theory (RT-TDDFT) in the plane-wave pseudopotential formulation. RT-TDDFT is implemented in various numerical formalisms in recent years, and its practical application often dictates the most appropriate implementation of the theory. We discuss recent developments and challenges, emphasizing numerical aspects of studying real systems. Several applications of RT-TDDFT simulation are discussed to highlight how the approach is used to study interesting electronic excitation and dynamics phenomena in recent years.
Deconfinement of classical Yang–Mills color fields in a disorder potential
Authors: Ermann Leonardo , Shepelyansky Dima L.
Published: September 2021

We study numerically and analytically the behavior of classical Yang–Mills color fields in a random one-dimensional potential described by the Anderson model with disorder. Above a certain threshold, the nonlinear interactions of Yang–Mills fields lead to chaos and deconfinement of color wavepackets with their subdiffusive spreading in space. The algebraic exponent of the second moment growth in time is found to be in the range of 0.3–0.4. Below the threshold, color wavepackets remain confined even if a very slow spreading at very long times is not excluded due to subtle nonlinear effects and the Arnold diffusion for the case when initially color packets are located in close vicinity. In the case of large initial separation of color wavepackets, they remain well confined and localized in space. We also present the comparison with the behavior of the one-component field model of discrete Anderson nonlinear Schrödinger equation with disorder.
Giant demagnetization effects induced by superconducting films
Authors: Mironov S. V. , Buzdin A. I.
Published: September 2021

We show that a ferromagnetic (F) slab with the in-plane magnetization sandwiched between two superconducting (S) films experiences strong demagnetization effect due to the Meissner screening of the stray magnetic field by superconductors. In the extreme case, the transition of the S film from normal to the superconducting state can switch the demagnetization factor from 0 to 1, which is in a sharp contrast with the S/F bilayers where such transition affects the magnetic field inside the F film only slightly. The giant demagnetization effect is shown to be qualitatively robust against the decreasing superconducting film thickness and may provide a hint toward the explanation of the anomalously large ferromagnetic resonance frequency shift recently observed for the S/F/S structures [Golovchanskiy et al., Phys. Rev. Appl. 14, 024086 (2020)].
Continuous-wave Raman amplification in silicon core fibers pumped in the telecom band
Authors: Huang Meng , Sun Shiyu , Wu Dong , Ren Haonan , Shen Li , Hawkins Thomas W. , Ballato John , Gibson Ursula J. , Peacock Anna C.
Published: September 2021

Stimulated Raman amplification is observed for the first time in the silicon core fiber (SCF) platform. The SCFs were tapered to obtain sub-micrometer core dimensions and low optical transmission losses, facilitating efficient spontaneous scattering and stimulated Raman amplification using a continuous-wave pump source with milliwatt power levels. A maximum on–off gain of 1.1 dB was recorded at a pump power of only 48 mW with our numerical simulations, indicating that gains up to 6dB are achievable by increasing the fiber length. This work shows that the SCF platform could open a route to producing compact and robust all-fiber integrated Raman amplifiers and lasers across a broad wavelength region.
Electrodeposited of ultrathin VOx-doped NiFe layer on porous NiCo phosphide for efficient overall water splitting
Authors: Yang Xueying , Wang Xiuhang , Zhao Tingwen , Ma Yi , Wang Zenglin , Zhao Chuan
Published: September 2021

An ultrathin VOx-doped NiFe alloy layer (VOx@NiFe) was electrodeposited on the surface of nickel-cobalt phosphide (NiCoP) supported by titanium mesh (TM) to achieve a highly active and low-cost bifunctional electrocatalyst for overall water splitting. VOx doping not only significantly enhances the electrochemical surface areas and the concentration of oxygen vacancies in the NiFe/NiCoP/TM composite, but also greatly improves the surface hydrophilicity. The VOx@NiFe/NiCoP/TM electrode retains a 3D porous structure of NiCoP/TM and exhibits superior electrocatalytic activity for water electrolysis. It requires the overpotentials of merely 45 and 215 mV to deliver the current density of 10 mA cm−2 in 1.0 M KOH for HER and OER, respectively. Meanwhile, the VOx@NiFe/NiCoP/TM electrode also displays robustness and outstanding durability in alkaline medium. Serving as both anode and cathode electrocatalysts in a two-electrode water electrolytic cell, the bifunctional VOx@NiFe/NiCoP/TM electrodes only require a potential of 1.52 and 1.65 V to deliver the current densities of 10 and 50 mA cm−2 with excellent durability. This work provides a design of multilevel porous structure of bifunctional electrocatalysts for energy storage and conversion.
Constant potential simulations on a mesh
Authors: Ahrens-Iwers Ludwig J. V. , Meißner Robert H.
Published: September 2021

Molecular dynamics simulations in a constant potential ensemble are an increasingly important tool to investigate charging mechanisms in next-generation energy storage devices. We present a highly efficient approach to compute electrostatic interactions in simulations employing a constant potential method (CPM) by introducing a particle–particle particle–mesh solver specifically designed for treating long-range interactions in a CPM. Moreover, we present evidence that a dipole correction term—commonly used in simulations with a slab-like geometry—must be used with caution if it is also to be used within a CPM. It is demonstrated that artifacts arising from the usage of the dipole correction term can be circumvented by enforcing a charge neutrality condition in the evaluation of the electrode charges at a given external potential.
Numerical study on hydrodynamic performance and flow noise of a hydrofoil with wavy leading-edge
Authors: Li Fang , Huang Qiaogao , Pan Guang , Shi Yao
Published: September 2021

Flow control based on bionics provides new research ideas for noise reduction. As one of the flow control methods, the wavy leading edge (WLE) inspired by the leading edge tubercles of the humpback whale is proposed in this paper. The hydrodynamic performance and flow noise of a National Advisory Committee for Aeronautics 0020 hydrofoil subjected to three WLEs are numerically investigated. A hybrid numerical method of large eddy simulation combined with the Ffowcs Williams–Hawkings equation is adopted to obtain the unsteady flow properties and predict the far-field noise. At a Reynolds number of 3.05 × 105, the simulation results show that the addition of WLEs can reduce the lift coefficient fluctuation but will increase the drag coefficient slightly. In addition, the WLE can reduce the OverAll Sound Pressure Level of the hydrofoil by up to 7.28 dB. The analysis of the flow features shows that the WLE can reduce the pressure fluctuation on the hydrofoil surface, which is directly beneficial to the noise reduction. Moreover, the WLE enhances the spanwise flow of the hydrofoil, produces streamwise vortices, and reduces the spanwise coherence coefficient at both the leading edge and trailing edge.
The #ReframeCovid initiative
Authors: Olza Inés , Koller Veronika , Ibarretxe-Antuñano Iraide , Pérez-Sobrino Paula , Semino Elena
Published: September 2021

From the beginning of the COVID-19 pandemic, governments, health agencies, public institutions and the media around the
world have made use of metaphors to talk about the virus, its effects and the measures needed to reduce its spread. Dominant among these
metaphors have been war metaphors (e.g. battles, front lines, combat), which present the virus as an enemy that needs to be
fought and beaten. These metaphors have attracted an unprecedented amount of criticism from diverse social agents, for a variety of reasons.
In reaction, #ReframeCovid was born as an open, collaborative and non-prescriptive initiative to collect alternatives to war metaphors for
COVID-19 in any language, and to (critically) reflect on the use of figurative language about the virus, its impact and the measures taken
in response. The paper summarises the background, aims, development and main outcomes to date of the initiative, and launches a call for
scholars within the metaphor community to feed into and use the #ReframeCovid collection in their own basic and applied research
projects.
Metaphorical blending in complex proverbs
Authors: Lemghari El Mustapha
Published: September 2021

Metaphor-based accounts of expressions involving a set of metaphors do not indicate how complex meaning is generated. For instance, meaning of the expression ‘this surgeon is a butcher’ is taken to arise from one metaphor:a person who performs actions with certain characteristics is a member of a profession known for those characteristics(Lakoff, 2008). But this metaphor does not explain its negative meaning. Blending Theory, in contrast, offers a convincing solution to this issue. Notwithstanding, it regards the expression as nonmetaphorical. I aim to combine Metaphor Theory and Blending Theory into a broad approach that best describes complex metaphorical expressions. I will apply it, first, to ‘this surgeon is a butcher’ and, second, to a pair of related proverbs: ‘God is in the details’ and ‘the devil is in the details’. Meanings of these proverbs will be assumed to emerge from three integration networks. Each operation uses two metaphors as inputs and yields a blend, comprising a new metaphor and a coded illocutionary force. The new metaphor structures their meanings, whereas the illocutionary force determines their conditions of use. The proverbs will be shown to behave, paradoxically, both as synonyms and antonyms.
Metaphors in Polish, English, Russian, and French perfumery discourse
Authors: Zawisławska Magdalena , Falkowska Marta
Published: September 2021

This paper examines metaphors in perfume reviews in four languages, namely Polish, English, Russian, and French. Some typical features of the perfumery discourse, similar across the four languages, have been highlighted, such as clustering, extension, and mixing metaphors. The authors also discuss the most typical schemata used in the conceptualization of perfumes. Although the analyzed texts exhibit a certain similarity, a statistical analysis of the reviews identifies some interesting discrepancies between the languages, that is: unequal distribution of metaphorical types, preferences in usage of perceptual and non-perceptual source frames, and variance in perfume conceptualization (perfume is a womanvs.perfume is a man).
Urban youth accents in France
Authors: Trimaille Cyril , Candea Maria
Published: September 2021

Following previous studies on the production and perception of a type of accent commonly known in France as
“accent de banlieue” (Vernet and Trimaille 2007; Devilla and Trimaille 2010; Trimaille, Candea and
Lehka-Lemarchand 2012), we suggest that the emblematic palatalization of /t/ and /d/ is not specific to
young urban people. We also examine how stereotypical uses in the media display this feature and contribute to its
iconization (Irvine and Gal 2000). The complex dynamics of a potential
phonetic change requires a mixed-method methodology, which provides partially contradictory results, and addresses
complex methodological issues in the field of sociophonetics. We, therefore, develop a pragmatic and critical
perspective about indexical relations that link social and linguistic categories, and in so doing, we highlight that
such an unstable linguistic category can only provide an illusion of stability, mainly because it relies on stable
social categorizations.
Study on Tensile Properties of Reinforced Composite Laminates with Open Holes
Authors: Cong Ding
Published: September 2021

The performance of open-hole composite laminates with different sizes and fillets under tensile load was analyzed by experiments and finite element software of ABAQUS. The effects of different hole sizes and fillet radius on the tensile properties of laminates were discussed. The results showed that the tensile failure load decreased with the increase of the hole size, and the trend was obvious. As the fillet radius of the hole increased, the failure load tended to increase.
Study on the Aggregation Performance of Nitrogen and Oxygen Gas Based on Permanent Magnet Gradient Magnetic
Authors: Man Zunhai , Zhao Keli , Liu Yuqi , Yu Aiwei
Published: September 2021

Oxygen and nitrogen in the air have different magnetic properties in a magnetic field. Oxygen and nitrogen are paramagnetic gases and diamagnetic gases, and the magnetizing force received in a gradient magnetic field is in opposite directions. Based on the magnetization theory and simulation experiment analysis, this paper uses the difference in the direction and magnitude of the magnetization force of oxygen and nitrogen in a gradient magnetic field to study the force state of oxygen and nitrogen molecules in the input air in a gradient magnetic field and the oxygen mass fraction of the output gas to explore effective ways to obtain oxygen-enriched gas. The results of this study can provide oxygen-enriched gas for operations such as oxygen-enriched combustion technology and sewage treatment engineering, and improve operational efficiency.
Effect of fiber size of straw on properties of straw board
Authors: Xiao Li-guang , Ding Yan-bo
Published: September 2021

The fiber and powdered reed straw fibers of different sizes were pretreated with 2% NaOH solution at 180°C and 6MPa for 8min. The straw board without adhesive was prepared by hot pressing. The surface morphology, energy spectrum analysis, thermal stability and mechanical properties of the straw board were studied. The experimental results showed that the surface Si content of straw was significantly increased by alkali activation pretreatment, and the mechanical properties of straw board were significantly improved. The static bending strength (MOR), elastic modulus (MOE) and internal bonding strength (IB) were significantly increased, while the water absorption and expansion rate (TS) were significantly decreased. Compared with fibrous straw board, the fiber bond of straw board made from powdered straw is more compact, its mechanical properties are improved greatly, and its water absorption and expansion rate are reduced obviously.