bluuebunny/crossref_metadata_2025_split huggingface dataset:
Vorläufige und endgültige Leichenschau und
Todesbescheinigung im Rettungsdienst in Deutschland – uneinheitliche
Prozessabläufe und mangelnde Standards
Authors: Nohl André , Ondruschka Benjamin , Afflerbach Christian , Lurz Christian , Sarangi Frank , Zeiger Sascha , Weichert Veronika , Brune Bastian , Dudda Marcel 
Published: April 2022

Zusammenfassung
Hintergrund Uneinheitliche Regelungen und Gesetze bzgl. medizinischer
Untersuchungen und Prozesse können zu Missverständnissen und
fehlerhaften, vermeidbaren Abläufen führen. Mit dieser Studie
möchten wir die Heterogenität der einzelnen Prozesse bei der
vorläufigen und endgültigen Leichenschau und Todesbescheinigung
im deutschen Rettungsdienst evaluieren.
Methoden An 212 Ärztliche Leiter Rettungsdienst in Deutschland
wurde eine E-Mail mit einem Umfragelink versendet. Die Fragen konnten online
beantwortet werden.
Ergebnisse Die Rücklaufquote betrug 47%. Die Existenz
geregelter Verfahrensanweisungen bejahen 58% der Teilnehmer. Eine
vorläufige Todesbescheinigung ist bei 64% zulässig, eine
vorläufige Leichenschau in 45% der Fälle. 19,4%
der Notärztinnen und Notärzte werden regelmäßig
zur Durchführung der endgültigen Leichenschau verpflichtet.
41% der Teilnehmer empfinden das Notarzt-Einsatzprotokoll als
ausreichende Dokumentationsform. 45% der Teilnehmer bewerten die
für ihr Bundesland geltende gesetzliche Bestimmung als ausreichend
detailliert. Rückfragen und Beschwerden treten auf, insbesondere wenn
ÄLRD der Meinung sind, dass die landesspezifischen Bestimmungen nicht
ausreichend sind (p<0,001).
Schlussfolgerung Die Ergebnisse zeigen heterogene Prozessabläufe
in Deutschland im Rahmen der obligaten ärztlichen Tätigkeit
Leichenschau. Mehr als die Hälfte der Teilnehmer bewerten die
vorliegenden gesetzlichen Bestimmungen als unzureichend. In der Folge kommt es
nicht selten zu Rückfragen und Beschwerden, v. a. aber zu
Unsicherheiten im Praxisalltag. Eine einheitliche Gesetzgebung und klare
Prozessabläufe sind aufgrund unserer Ergebnisse
wünschenswert.
Ginseng – die Möglichkeit seiner Anwendung zur Behandlung der Tumor-assoziierten Müdigkeit
Authors: Pfuhlmann Katrin , Klose Petra , Neufeld Tanja , Langhorst Jost 
Published: April 2022

ZUSAMMENFASSUNGVon dem zu den Efeugewächsen gehörigen Ginseng sind vor allem zwei Arten bekannt: Der Asiatische oder Koreanische Ginseng Panax ginseng und der Amerikanische Ginseng Panax quinquefolius. Anwendung finden Verarbeitungen der Ginsengwurzel (Ginseng Radix), welche etliche gesundheitsförderliche Inhaltsstoffe enthält. Die wichtigsten pharmakologisch aktiven Substanzen stellen die Ginsenoside dar. Ginseng gilt als traditionelles Mittel gegen Erschöpfungszustände aller Art. Für diesen Zweck ist der Asiatische Ginseng in Europa als Arzneimittel zugelassen. Ergebnisse hochwertiger randomisierter kontrollierter Studien zeigen erste positive Effekte der Anwendung von Ginseng bei Tumor-assoziierter Müdigkeit und liefern Hinweise für eine toxikologische Unbedenklichkeit des Ginsengs. Auf Grundlage dieser Publikationen lautet die Empfehlung in der S3-Leitlinie „Komplementärmedizin in der Behandlung von onkologischen PatientInnen“: „Es liegen Daten aus 4 RCTs zur Wirksamkeit von Ginseng auf die Verbesserung von Fatigue bei onkologischen Patienten vor. Ginseng kann zur Verbesserung von Fatigue bei diesen Patienten erwogen werden.“
Bilateral CMV Retinitis in a Patient with Relapsed Non-Hodgkin Lymphoma on Oral Metronomic Chemotherapy: Case Report and Review of Literature
Authors: Saj Fen , Deb Amit Kumar , Kaliaperumal Subhashini , Kayal Smita , Dubashi Biswajit , Dhodapkar Rahul , Ganesan Prasanth 
Published: April 2022

AbstractCytomegalovirus (CMV) retinitis is one of the common complications in profoundly immunosuppressed patients such as those with acquired immune deficiency syndrome. It has been rarely reported in patients with lymphoma on aggressive chemotherapy. We encountered a patient with bilateral CMV retinitis who developed this vision-threatening complication while on low-dose palliative metronomic chemotherapy with oral drugs (cyclophosphamide, procarbazine, etoposide, and prednisolone). Though the infection resolved with treatment, there was residual vision loss. This case is presented to sensitize clinicians to the possibility of unusual infections in patients on long-term oral chemotherapies.
Generalized geodesic deviation in de Sitter spacetime
Authors: Waldstein Isaac Raj , Brown J David 
Published: April 2022

Abstract
The geodesic deviation equation (GDE) describes the tendency of objects to accelerate towards or away from each other due to spacetime curvature. The GDE assumes that nearby geodesics have a small rate of separation, which is formally treated as the same order in smallness as the separation itself. This assumption is discussed in various papers but is not articulated in any standard textbooks on general relativity. Relaxing this assumption leads to the generalized geodesic deviation equation (GGDE). We elucidate the distinction between the GDE and the GGDE by explicitly computing the relative acceleration between timelike geodesics in two-dimensional de Sitter spacetime. We do this by considering a fiducial geodesic and a secondary geodesic (both timelike) that cross with nonzero speed. These geodesics are spanned by a spacelike geodesic, whose tangent evaluated at the fiducial geodesic defines the separation. The second derivative of the separation describes the relative acceleration between the fiducial and secondary geodesics. Near the crossing point, where the separation between the timelike geodesics is small but their rates of separation can be large, we show that the GGDE holds but the GDE fails to apply.
Stress engineered SU-8 dielectric-microbridge based polymer MEMS Pirani gauge for broad range hermetic characterization
Authors: Garg Manu , Arya Dhairya Singh , Kumar Sushil , Yousuf Mujeeb , Chiu Yi , Singh Pushpapraj 
Published: April 2022

Abstract
The paper introduces a SU-8 dielectric µ-bridge based polymer microelectromechanical systems (MEMS) Pirani gauge which can be employed for hermetic characterization of packaged electronic sensors. The µ-bridge structure is adopted due to its simplicity in fabrication and lower footprint, which makes it feasible for heterogeneous integration. Further, the integration of SU-8 polymer with the active thermistor offers superior thermal isolation from the substrate and extends the dynamic range. Before fabricating the actual device, the SU-8 based µ-bridge is optimized for stress-free release. A stress engineering is performed and thermal processing of SU-8 is optimized. The measurement results reveal that the removal of quenching from the baking steps leads to the successful fabrication of freely suspended µ-bridge with SU-8 polymer as a structural layer. A quantitative comparison of the proposed gauge is established by comparing the gauge performance with conventional dielectric materials like silicon dioxide (SiO2), silicon nitride (Si3N4), and aluminum oxide (Al2O3). The fabricated SU-8 polymer-based MEMS Pirani gauge with a 40 µm × 7 µm footprint can be used for hermetic characterization from 30 Pa to 105 Pa and is an ideal candidate for heterogeneous integration.
Human coronavirus inactivation by atmospheric pressure helium plasma
Authors: Sasaki Shota , Osana Shion , Kubota Takahiro , Yamaya Mutsuo , Nishimura Hidekazu , Nagatomi Ryoichi , Kaneko Toshiro 
Published: April 2022

Abstract
The recent global pandemic of Corona Virus Disease-19 has impacted all aspects of society, producing a growing demand for a powerful virus inactivation method. To assess a potential and mechanism of human coronavirus inactivation using atmospheric pressure plasma (APP) technology, replication of a human coronavirus (HCoV-229E) after He + H2O APP plume exposure was evaluated using rhesus monkey kidney epithelial cells. The HCoV-229E titers were reduced by 3 log10TCID50 after the APP exposure for 30 s, showing a strong virus-inactivation efficacy of the APP. It was experimentally verified that the APP produced the liquid-phase reactive oxygen and nitrogen species (RONS) at high rates [e.g. •OH: ∼1.7 nmol s−1, H2O2 (including H2O2 precursors): ∼9.2 nmol s−1, NO2
− (including NO2
− precursors): ∼3.3 nmol s−1]. However, an administration of H2O2 with NO2
− failed to inactivate the virus and only Mn type superoxide dismutase among several RONS scavengers for •OH, HO2
•/O2
•−, 1O2, and •NO/•NO2 was significantly effective for the recovery of the APP-induced decrease in the viral titers. This suggests O2
•−-related chemical reaction in a network of interconnected reactions induced by the APP exposure is very important for the APP-induced virus inactivation. These results provide new insight into a more efficient inactivation method of human coronavirus using APPs.
Effect of non-magnetic doping on magnetic state and Li/Na adsorption and diffusion of black phosphorene
Authors: Zhong Kehua , Li Jiaxin , Xu Guigui , Zhang Jian-Min , Huang Zhigao 
Published: April 2022

Abstract
Black phosphorene (BP) have aroused great concern because of its great potential for the application in nanoelectronic devices and high-performance anode materials for alkali metal ion batteries (AIBs). However, the absence of magnetism for an ideal BP limits its wide application in spintronic devices which is one of the important nanoelectronic devices, and its application as a high-performance anode material for AIBs is still to be explored. In this paper, we adopt first-principles calculations to explore the effects of B, C, N, O, F, Al, Si and S atom doping on the magnetic state of monolayer BP and Li or Na atom adsorption and diffusion on the BP. Additionally, the thermal stability of the doped BP systems at room temperature is revealed by the ab initio molecular-dynamics calculations. Our calculated results indicate that O and S doping can make the doped BP become a magnetic semiconductor, C and Si doping makes the doped BP be metallic, and B, N, F and Al doping preserves semiconductor property. Moreover, little structural changes and significant decreases of diffusion barriers in armchair direction and slight increases of diffusion barriers in zigzag direction make B-doped BP beneficial as an anode material for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). It reveals that S-doping is suitable for improving the performance of SIBs rather than LIBs. Interestingly, it is found that magnetic states of O- and S-doped BP disappear when Li or Na atoms adsorb on them, whereas Li or Na adsorption on B- and Al-doped BP induces magnetic states of these systems. The analyses indicate that the distinct electron transfer between the dopant atom, adatom and neighboring P atoms, and specific electron configuration of dopant atoms cause the magnetism of the systems. Our results suggest that selecting appropriate composition to dope can effectively manipulate magnetic state and improve Li/Na adsorption and diffusion on the BP. These results may inspire further theoretical and experimental exploration on doped two-dimensional (2D) materials in spintronics and doped 2D promising anode materials for high-performance metal ion batteries.
Atomic structure of an FeCrMoCBY metallic glass revealed by high energy x-ray diffraction
Authors: Pussi K , Louzguine-Luzgin D V , Nokelaineni J , Barbiellini B , Kothalawala V , Ohara K , Yamada H , Bansil A , Kamali S 
Published: April 2022

Abstract
Amorphous bulk metallic glasses with the composition Fe48Cr15Mo14C15B6Y2 have been of interest due to their special mechanical and electronic properties, including corrosion resistance, high yield-strength, large elasticity, catalytic performance, and soft ferromagnetism. Here, we apply a reverse Monte Carlo technique to unravel the atomic structure of these glasses. The pair-distribution functions for various atomic pairs are computed based on the high-energy x-ray diffraction data we have taken from an amorphous sample. Monte Carlo cycles are used to move the atomic positions until the model reproduces the experimental pair-distribution function. The resulting fitted model is consistent with our ab initio simulations of the metallic glass. Our study contributes to the understanding of functional properties of Fe-based bulk metallic glasses driven by disorder effects.
Improvement of wire-mesh sensor accuracy via adapted circuit design and integrated energy loss measurement
Authors: Dias Felipe de Assis , Wiedemann Philipp , Schleicher Eckhard , da Silva Marco Jose , Hampel Uwe 
Published: April 2022

Abstract
We reviewed the electronic principles and design of the wire-mesh sensor with respect to inherent energy losses. From the analysis we derived a new circuit design with an optimized amplifier circuit and extended the sensor by an extra transmitter electrode embedded into the dielectric construction material. The latter allows an inherent determination of the energy losses that cannot be suppressed by circuit optimization only. Experimental analysis showed that we achieve an improvement in measurement accuracy with respect to the local and average phase fractions. Deviations in a single crossing point are reduced from more than

30
%

down to less than

5
%

and deviations in the average phase fraction are reduced from more than

15
%

down to less than

2
%

.
First-order thermodynamics of scalar-tensor cosmology
Authors: Giardino Serena , Faraoni Valerio , Giusti Andrea 
Published: April 2022

Abstract
A new thermodynamics of scalar-tensor gravity is applied to spatially
homogeneous and isotropic cosmologies in this
class of theories and tested
on analytical solutions. A forever-expanding universe approaches the
Einstein “state of equilibrium” with zero effective temperature at late
times and departs from it near spacetime singularities. “Cooling” by
expansion and “heating” by singularities compete near the Big Rip, where
it is found that the effective temperature diverges in the case of
a conformally coupled scalar field.
Post-Newtonian parameters of ghost-free parity-violating gravities
Authors: Qiao Jin , Zhu Tao , Li Guoliang , Zhao Wen 
Published: April 2022

Abstract
We investigate the slow-motion and weak-field approximation of the general ghost-free parity-violating (PV) theory of gravity in the parametrized post-Newtonian (PPN) framework and derive the perturbative field equations, which are modified by the PV terms of this theory. The complete PPN parameters are obtained by solving the perturbative field equations. We find that all the PPN parameters are exactly the same as those in general relativity, except for an extra parameter κ, which is caused by the new curl-type term in the gravitomagnetic sector of the metric in this theory. We calculate the precession effects of gyroscopes in this theory and constrain the model parameters by the observations of the Gravity Probe B experiment.
Optical theorem, crossing property, and derivative dispersion relations: implications on the asymptotic behavior of

and
Authors: Campos S. D. , Okorokov V. A. 
Published: April 2022

Abstract
In this paper, we present some results on the behavior of the total cross section and ρ-parameter at asymptotic energies in proton–proton (

) and antiproton–proton (

) collisions. Hence, we consider three of the main theoretical results in high energy physics: the crossing property, derivative dispersion relation, and optical theorem. The use of such machinery facilitates the derivation of analytic formulas for a wide set of the measured global scattering parameters and some important relations between them. The suggested parameterizations approximate the energy dependence for the total cross section and ρ-parameter for

and

with a statistically acceptable quality in the multi-TeV region. Additionally, the qualitative description is obtained for important interrelations, namely difference, sum, and ratio of the antiparticle–particle and particle–particle total cross sections. Despite the reduced number of experimental data for the total cross section and ρ-parameter at the TeV-scale, which complicates any prediction for the beginning of the asymptotic domain, the fitting procedures indicates that asymptotia occur in the energy range 25.5–130 TeV. Moreover, in the asymptotic regime, we obtain

. A detailed quantitative study of the energy behavior of the measured scattering parameters and their combinations in the ultra–high energy domain indicates that the scenario with the generalized formulation of the Pomeranchuk theorem is more favorable with respect to the original formulation of this theorem.
Review Article: Resonant Families of Periodic Orbits in the Restricted Three-body Problem*
Authors: Pan Shanshan , Hou Xiyun 
Published: April 2022

Abstract
The restricted three-body problem (RTBP) is a fundamental model in celestial mechanics. Periodic orbits in the synodic frame play a very important role in understanding the dynamics of the RTBP model. Most of these periodic orbits, when interpreted in the sidereal frame, are actually resonant periodic orbits. As a result, numerical computation of the periodic orbits is also one approach for researchers to understand the orbital resonances of the three-body problem. Extensive studies have been carried out on this topic, concerning either the circular case or the elliptic case of this model. In this paper, we make a brief review of the history and current status of the studies on resonant periodic orbits in the RTBP model. Starting from the unperturbed two-body problem, we organize the review paper by the two cases of this model—the circular restricted three-body problem and the elliptic restricted three-body problem.
Optimization Design of Short Shell Structure of Rocket Fuel Tank Based on Kriging Surrogate Model
Authors: Luo Zheng , Liu Zeya , He Xiaoyu 
Published: April 2022

Abstract
Aiming at the weight reduction optimal design of short shell structure of rocket fuel tank, this paper deals with the structural optimization under the action of axial load. First, the accuracy of equivalent stiffness method is verified by post-buckling analysis of short shell in ABAQUS. Then, according to the parametric model of short shell, based on Kriging surrogate model and EGO algorithm, the optimal structure without and with fillet are obtained under the given design load. Finally, a parametric study is carried out on the influence of fillet on the bearing capacity per unit mass of short shell. The results show that when the width of rib or the spacing of transverse rib is small, and the height of rib, the thickness of skin or the spacing of longitudinal rib is large, processing large fillet for load-bearing purpose is less beneficial or even disadvantageous.
Research on the Built-in Test Design of Civil Aircraft Flight Control System
Authors: Shen Shilei , Ma Linlong 
Published: April 2022

Abstract
Based on ARINC 624 for civil aircraft airborne maintenance system, the working modes and application forms of civil aircraft Flight Control System Built-in Test (BIT) design are given. The test principles and implementation methods of the civil aircraft Flight Control System Power-on BIT and Initiated BIT are analyzed in detail, and the overall functional architecture of the civil aircraft Flight Control System BIT is described. Taking the actuator as an example, the realization method of its return to service test is analyzed. Finally, the general characteristics of the BIT technology of the civil aircraft Flight Control System are summarized.
Study on the combination influences of homotype rough element on hypersonic blunt cone flow
Authors: Tang Xiaojun , Liu Lixia , Sun Zijie , Xin Liang , Shi Mingfang 
Published: April 2022

Abstract
To study the influence of the homotype rough element combination and spacing on the flow around the hypersonic blunt cone, the high-order accuracy finite difference method is used to directly simulate the flow field around the hypersonic compressible blunt cone, and the influence of the homotype of rough element on the boundary layer parameters such as heat flux and friction coefficient is discussed. It is concluded that two K-type rough elements lead to the formation of three compression waves and two expansion waves in the flow field. On the contrary, two D-type rough elements form two compression waves and three expansion waves in the flow field, and a long flow separation will be formed between two K-type and D-type rough elements. When the spacing of rough elements is 1, the drag reduction and heat reduction effect of K+K rough element is better than that of D+D rough element. When the spacing between the two rough elements is greater than a certain length, the two rough elements will not affect each other.
A model for a metal bobbin tile with open cylindrical shell structures
Authors: Wang Zhaodong , Li Pu 
Published: April 2022

Abstract
Correct modeling of static stiffness and strength of the metal bobbin tile is crucial in the design of roof structures. In the past, finite element method (FEM) is the only accurate way to evaluate stiffness and strength of the metal tile. In this paper, the single metal bobbin tile is first treated as an open cylindrical shell. Then an analytical model for the static stiffness of the metal bobbin tile under concentrated load is presented based on a double triangular series. The accuracy of the present models is verified by comparing their results with the numerical results of FEM.
Synthesis analysis of electric propulsion implement in large civil aircraft
Authors: Dong Qinpeng , Ma Chao 
Published: April 2022

Abstract
With more and more concerns of carbon emission reduction in civil aviation, this article aims to illustrate the current development and product of electric propulsion in civil aviation, also to investigate the feasibility and benefit of electric propulsion implement on large civil aircraft. In order to achieve this objective, a single aisle passenger airliner concept with electric propulsion was designed and trade-studied. There are both advantages and disadvantages of different energy architecture such as Turbine generator, APU generator, Lithium battery and Hydrogen fuel cell system. As the practical energy density of lithium battery is much lower than needed, considering the current situation and development potential, fuel cell with liquid hydrogen are most possibly used as the main power source in future large civil aircraft.
Numerical Simulation Of Propellant Slurry Stirring Process
Authors: Zhao Ruyan , Huang Jingru , Zhuang Zhenmin , Guan Xu 
Published: April 2022

Abstract
Taking the mixing process of medicine slurry in kneader as the research object, the finite element analysis method was used to simulate the law and characteristics of TCM slurry flow in the mixing process. The simulation results show that the telocentric blade plays an important role in the stirring process. The scraping area of telecentric blades and the kneading area of two blades are the main kneading areas. The flow direction of slurry does not change at different speeds, and the velocity has a linear relationship with the blade speed. The axial conveying capacity is the best at the central horizontal section of the mixing kettle. When the rotational speed increases, the shear stress and viscous heat loss rate increase, and the viscosity decreases.