bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation des Netzwerk OnkoAktiv aus
Patientenperspektive
Authors: Voland Annelie , Köppel Maximilian , Wiskemann Joachim 
Published: June 2022

Zusammenfassung
Hintergrund Zahlreiche Studien zeigen, dass Sport und Bewegung eine
signifikant positive Wirkung auf krebstherapiebedingte Nebenwirkungen haben.
Trotzdem fehlt es flächendeckend an qualifizierten, onkologischen
Bewegungsangeboten. Das Netzwerk OnkoAktiv (OA) vermittelt Krebspatienten daher
wohnortnah an qualitätsgeprüfte Trainings- und
Therapieinstitutionen. Ziel dieser Arbeit war die erstmalige Evaluation des
Netzwerkes am regionalen OA Zentrum Heidelberg aus Patientenperspektive.
Methode Es wurde eine quantitative, prospektive, einarmige
Längsschnittbefragung zu drei Messzeitpunkten (T1: Erstkontakt bei OA,
T2: Trainingsstart, T3: Abschluss der 8. Trainingswoche) durchgeführt.
Fragebogeninhalte bezogen sich auf die PRO´s: Körperliche
Aktivität (KA), Lebensqualität (LQ), Patientenzufriedenheit (PZ)
und Qualitätsparameter der OA-Leistungen sowie Abbruchquoten und Dauer
der OA-Vermittlung.
Ergebnis Es wurden 86 Patienten an 34 verschiedene
OA-Trainingsinstitutionen vermittelt, wovon 60 Patienten eingeschlossen wurden.
Die durchschnittliche Vermittlungsdauer betrug 42 Tage (min.5/max.110
Tage). 93% der Befragten zeigten eine hohe Patientenzufriedenheit
bezogen auf die OA-Leistungen. Es zeigte sich eine signifikante Verbesserung der
KA und globalen LQ nach 8 Wochen. Die Dropout- Quote lag bei 28,3%
(n=17).
Diskussion OA kann den hohen Anspruch onkologischer Patienten decken,
allerdings müssen bestehende Qualitätsparameter hinsichtlich
ihrer Effektivität und Effizienz angepasst werden. Es kann kein direkter
Zusammenhang zwischen KA, LQ und Trainingsbeteiligung dargestellt werden, da bei
einem Großteil der Patienten keine Anwesenheitskontrolle
durchgeführt wurde.
Schlussfolgerung Das Netzwerk OA ermöglicht standardisierte
Rahmenbedingungen zur Qualitätssicherung wohnortnaher onkologischer
Bewegungsangebote.
Embolic Materials: Understanding the Ocean of Choices
Authors: Young Shamar , Larson Anthony S. , Torkian Pooya , Golzarian Jafar 
Published: June 2022

AbstractEmbolization is a fundamental procedure that interventional radiologists perform on a daily basis to treat a variety of diseases. The disease processes for which embolization is considered a safe and effective treatment are continuously expanding, as are the embolization materials available for use. To achieve optimal clinical outcomes and minimize complications, it is imperative that the interventional radiologist understands the properties, strengths, and weaknesses of each class of embolic and specific embolic products. This is a continuous process as new materials are always becoming available. This article reviews the different classes of embolic materials, discusses strengths and weaknesses, and reviews areas of innovation.
Radiology Technologists Performing Peritoneal Drainage, Local Experience
Authors: Aljediea I , Alshehri M , Alenazi K , Memesh A , Fleet M 
Published: June 2022

Abstract
Purpose We conducted this study to review our experience of peritoneal drainages (paracentesis) performed by interventional radiology technologists.
Materials and Methods This is a retrospective study of peritoneal drainages performed by interventional radiology technologists.
Results We reviewed all peritoneal drainages performed in interventional radiology between November 2018 and November 2021. The review process included success rate, volume drained, catheter duration, and complications.
Conclusion Interventional radiology technologists can safely perform ultrasound-guided peritoneal drainages. Extending Interventional radiology technologists' role to perform ultrasound-guided peritoneal drainages allows interventional radiologists to do more complex procedures, enhances the workflow, and increases the efficiency of the interventional radiology team.
Competitive pricing on online markets: a literature review
Authors: Gerpott Torsten J. , Berends Jan 
Published: June 2022

AbstractPast reviews of studies concerning competitive pricing strategies lack a unifying approach to interdisciplinarily structure research across economics, marketing management, and operations. This academic void is especially unfortunate for online markets as they show much higher competitive dynamics compared to their offline counterparts. We review 132 articles on competitive posted goods pricing on either e-tail markets or markets in general. Our main contributions are (1) to develop an interdisciplinary framework structuring scholarly work on competitive pricing models and (2) to analyze in how far research on offline markets applies to online retail markets.
Political science as architecture
Authors: Lindvall Johannes 
Published: June 2022

AbstractThis article compares political science to another discipline, with which it has much in common. That discipline is architecture. The political-science-as-architecture analogy has a long history in political thought. It also has important implications for the ends, means, and uses of political science. It follows from the political-science-as-architecture analogy that political science is necessarily a heterogeneous and pluralistic discipline. It also follows that political scientists have a common purpose, which is to conceive of institutional structures that allow humans to live together in societies, just as the purpose of architecture is to conceive of physical structures in which humans can live together.
Age and growth of Pacific cownose ray,
Authors: Pabón-Aldana Karen A. , Melo-Barrera Felipe N. , Pérez-Palafox Xchel A. , Navia Andrés F. , Cruz-Escalona Víctor H. , Mejía-Falla Paola A. 
Published: June 2022

Context Rhinoptera steindachneri is the third-most abundant batoid species in the artisanal gillnet fishery of the Gulf of California, but there are limited age and growth data available for management. Aims The aim was to estimate age and growth of this species from vertebral centra of 276 individuals. Methods Two adjusted data sets were constructed on the basis of the birth and capture months and defining adequately the birth band. Individual growth was described through a multi-model approach and inference by using von Bertalanffy, Gompertz, and Logistic models (two and three parameters), and a two-phase growth model (four and five parameters). Key results The model with the best fit to the size-at-age data was the two-phase model for both sexes (females: Dw∞ = 91.21 cm; k = 0.25 year−1, Dw0 = 46.2 cm; males: Dw∞ = 79.1 cm; k = 0.42 year−1, Dw0 = 45.5 cm). Maximum ages ranged from 9.92 to 10.75 years (female) and from 6.92 to 7.67 years (males). Maturity age was estimated in 3.92 years (females) and 3.72 years (males). Conclusions Rhinoptera steindachneri is a batoid species with intermediate growth and a shorter lifespan than for confamilial species and even than species with similar reproductive traits. Implications The need to carry out age validation studies for this species is highlighted.
Experimental research in automatic subtitling
Authors: Karakanta Alina 
Published: June 2022

AbstractRecent developments in neural machine translation, and especially speech translation, are gradually but firmly entering the field of audiovisual translation (AVT). Automation in subtitling is extending from a machine translation (MT) component to fully automatic subtitling, which comprises MT, auto-spotting and automatic segmentation. The rise of this new paradigm renders MT-oriented experimental designs inadequate for the evaluation and investigation of automatic subtitling, since they fail to encompass the multimodal nature and technical requirements of subtitling. This paper highlights the methodological gaps to be addressed by multidisciplinary efforts in order to overcome these inadequacies and obtain metrics and methods that lead to rigorous experimental research in automatic subtitling. It presents a review of previous experimental designs in MT for subtitling, identifies their limitations for conducting research under the new paradigm and proposes a set of recommendations towards achieving replicability and reproducibility in experimental research at the crossroads between AVT and MT.
Altered regional 3D shear wave velocity patterns in youth competitive alpine skiers suffering from patellar tendon complaints – a prospective case–control study
Authors: Götschi Tobias , Franchi Martino V. , Schulz Nicole , Fröhlich Stefan , Frey Walter O. , Snedeker Jess G. , Spörri Jörg 
Published: June 2022

ABSTRACTPatellar tendon (PT) complaints are frequent throughout the population, with increased occurrence in athletes and, particularly, in youth competitive alpine skiers. Timely detection and treatment might improve prospects of recovery. Diagnostic modalities in clinical use to date rely on pain symptoms, manual palpation, and potentially, magnetic resonance imaging (MRI); however, MRI‐based imaging yields limited sensitivity. Quantitatively measuring the morphological and mechanical properties of PTs by means of B‐mode ultrasound and shear wave elastography (SWE), instead, may allow improved diagnosis or even early detection. We performed B‐mode scans and three‐dimensional ultrasound shear wave velocity (SWV) mapping and MRI of the PT in 106 youth skiers. A prospective one‐year survey on health problems combined with clinical assessments served to categorize symptomatic and asymptomatic youth skiers. Skiers suffering from distal or proximal tendon complaints showed lower SWV in the respective tendon region than asymptomatic skiers (p = 0.035 and p = 0.019, respectively). Youth skiers with distal tendon complaints additionally exhibited decreased SWV in the proximal region compared to asymptomatic counterparts (p = 0.020). Cross‐validated analysis of retrospective prediction indicated sensitivity and specificity in detecting tendon complaints in the range of 0.606–0.621 and 0.536–0.650, respectively. MRI detected distal tendon complaints with a sensitivity of 0.410 (12/29) but failed to detect any proximal cases. This study agrees with the most recent literature in that SWE holds promise as a valuable adjunct modality for the diagnosis of PT complaints or even the detection of subclinical prestages. However, to evaluate its prospective predictive value, long‐term studies are warranted.Highlights
Patellar tendon complaints are a frequent complaint in athletes, particularly in youth competitive alpine skiers, but timely quantitative detection of related tendon properties remains challenging.
Quantitative B‐mode US and three‐dimensional ultrasound shear wave elastography assessments and magnetic resonance imaging were performed in youth competitive alpine skiers.
Three‐dimensional shear wave elastography was able to discern symptomatic from asymptomatic patellar tendons both in the distal and proximal tendon regions, whereas magnetic resonance imaging failed to detect any proximal cases.
Measurement of the angular correlation between the two gamma rays emitted in the radioactive decays of a 60Co source with two NaI(Tl) scintillators
Authors: Amato E C , Anelli A , Barbieri M , Cataldi D , Cellamare V , Cerasole D , Conserva F , De Gaetano S , Depalo D , Digennaro A , Fiorente E , Gargano F , Gatti D , Loizzo P , Loparco F , Mele O , Nicassio N , Perfetto G , Pillera R , Pirlo R , Schygulla E , Troiano D 
Published: June 2022

Abstract
We implemented a didactic experiment to study the angular correlation between the two gamma rays emitted in typical 60Co radioactive decays. We used two NaI(Tl) scintillators, already available in our laboratory, and a low-activity 60Co source. The detectors were mounted on two rails, with the source at their center. The first rail was fixed, while the second could be rotated around the source. We performed several measurements by changing the angle between the two scintillators in the range from 90° to 180°. Dedicated background runs were also performed, removing the source from the experimental setup. We found that the signal rate increases with the angular separation between the two scintillators, with small discrepancies from the theoretical expectations.
Defect-control electron transport behavior of gallium nitride/silicon nonplanar-structure heterojunction
Authors: Zhang Yan , Jiang Hang-Hui , Luo Yuan-Hang , Xiao Meng-Zhen , Wen Chao , Xing Ya-Kun , Li Xin-Jian 
Published: June 2022

Abstract
Compared with a traditional heterojunction, a nonplanar-structure heterojunction can reduce the problems caused by a lattice mismatch through a three-dimensional stress release mechanism, which will be helpful for promoting the performance and stability of related devices. In this paper, we report our study on the electron transport behavior of a gallium nitride (GaN)/silicon (Si) heterojunction with nonplanar-structure interface, which was prepared through growing GaN on a hierarchical structure, Si nanoporous pillar array (Si-NPA). To clarify the electron transport mechanism and promote the device performance, annealing treatment in ammonia atmosphere was carried out to as-prepared GaN/Si-NPA. The formation of the heterojunction was verified by the typical rectification behavior observed in both as-prepared and annealed samples. After annealing treatment, a lower turn-on voltage, a smaller reverse saturation current density, a larger forward current density and a higher reverse breakdown voltage were obtained, which indicate the promotion of the heterojunction performance. By comparatively studying the spectrum evolution of photoluminescence before and after annealing treatment, the underlying mechanism is clarified as the variation of the type and density of point defects such as gallium vacancy (V
Ga), oxygen substitutional impurity (ON), and their complex defect V
Ga−ON in GaN. The results illustrate an effective defect-control strategy for optimizing the performance of GaN/Si heterojunction optoelectronic devices.
Wavefunction-based quantum-chemical ab initio calculations for core electron binding energies of small open shell molecules
Authors: Staemmler Volker 
Published: June 2022

AbstractCore electron binding energies (CEBEs), i.e. ionization energies of 1s core orbitals, are calculated by means of wavefunction-based quantum-chemicalab initiomethods for a series of small open-shell molecules containing first-row atoms. The calculations are performed in three steps: (a) Koopmans’ theorem, where the orbitals of the electronic ground state are used unchanged also for the ions, (b) Hartree–Fock or self consistent field (SCF) approximation in which the orbitals are allowed to relax after 1s ionization (ΔSCF), (c) dynamic correlation effects on top of SCF. For open-shell molecules 1s ionization leads to ions in several spin states, mostly to a pair of a triplet and a singlet state. In several cases one or both of these ionic states are only poorly described by a single-reference SCF wavefunction, therefore a multi-reference complete active space self consistent field (CAS-SCF) wavefunction is used instead. The correlation effects are evaluated by means of our multi-reference coupled electron pair approximation program. The accuracy of the calculated CEBEs is in the order of 0.1–0.4 eV. This is in agreement with experimental results for NO and O2. But there exist only very few gas phase data for CEBEs of open-shell molecules.
Biological/metal oxide composite transport layers cast from green solvents for boosting light harvesting response of organic photovoltaic cells indoors
Authors: Dagar Janardan , Brown Thomas M 
Published: June 2022

Abstract
Organic solar cells with biological/metal–oxide electron transport layers (ETLs), consisting of a ZnO compact layer covered by a thin DNA layer, both of which deposited with green solvents (water or water/alcohols mixtures) are presented for application under low intensity indoor lighting. Under white LED lamp (200, 400 lx), photovoltaic cells with P3HT:PC70BM polymer semiconductor blends delivered an average maximum power density (MPD) of 8.7 μW cm−2, corresponding to a power conversion efficiency, PCE, of = 8.56% (PCE of best cell was 8.74%). The ZnO/DNA bilayer boosted efficiency by 68% and 13% in relative terms compared to cells made with DNA-only and ZnO-only ETLs at 400 lx. Photovoltaic cells with ZnO/DNA composite ETLs based on PTB7:PC70BM blends, that absorb a broader range of the indoor lighting spectrum, delivered MPDs of 16.2 μW cm−2 with an estimated average PCE of 14.3% (best cell efficiency of 15.8%) at 400 lx. The best efficiencies for cells fabricated on flexible plastic substrates were 11.9% at 400 lx. This is the first report in which polymer photovoltaics incorporating biological materials have shown to increment performance at these low light levels and work very efficiently under indoor artificial light illumination. The finding can be useful for the production of more bio-compatible photovoltaics as well as bio-sensing devices based on organic semiconductors.
Vectorial probing of electric and magnetic transitions in variable optical environments and vice-versa
Authors: Chacon Reinaldo , Leray Aymeric , Kim Jeongmo , Lahlil Khalid , Bouhelier Alexandre , Kim Jong-Wook , Gacoin Thierry , Colas des Francs Gérard 
Published: June 2022

Abstract
We use europium doped single crystalline NaYF4 nanorods for probing the electric and magnetic contributions to the local density of optical states (LDOS). Reciprocically, we determine intrinsic properties of the emitters (oscillator strength, quantum yield) by comparing their measured and simulated optical responses in front of a mirror. We first experimentally determine the specifications of the nanoprobe (orientation and oscillator strength of the electric and magnetic dipoles moments) and show significant orientation sensitivity of the branching ratios associated with electric and magnetic transitions. In a second part, we measure the modification of the LDOS in front of a gold mirror in a Drexhage’s experiment. We discuss the role of the electric and magnetic LDOS on the basis of numerical simulations, taking into account the orientation of the dipolar emitters. We demonstrate that they behave like degenerated dipoles sensitive to polarized partial LDOS.
Modeling of the electron beam induced current signal in nanowires with an axial p-n junction
Authors: Lahreche Abderrezak , Babichev Andrey V , Beggah Yamina , Tchernycheva Maria 
Published: June 2022

Abstract
A tridimensional mathematical model to calculate the electron beam induced current (EBIC) of an axial p-n nanowire junction is proposed. The effect of the electron beam and junction parameters on the distribution of charge carriers and on the collected EBIC current is reported. We demonstrate that the diffusion of charge carriers within the wire is strongly influenced by the electrical state of its lateral surface which is characterized by a parameter called surface recombination velocity (v
r). When the surface recombination is weak (i.e. low v
r value), the diffusion of charge carriers occurs in one dimension (1D) along the wire axis, and, in this case, the use of bulk EBIC models to extract the diffusion length (L) of charge carriers is justified. However, when the surface effects are strong (i.e. high v
r values), the diffusion happens in three dimensions (3D). In this case, the EBIC profiles depend on v
r value and two distinct cases can be defined. If the L is larger than the nanowire radius (r
a), the EBIC profiles show a strong dependency with this parameter. This gives evidence that the recombination of generated carriers on the surface through v
r is the dominant process. In this situation, a decrease of two orders of magnitude in the EBIC profiles computed with a high and a low v
r value is observed in neutral regions of the junction. For the case of L smaller than r
a the dependency of the EBIC profiles on the v
r is weak, and the prevalent recombination mechanism is the bulk recombination process.
Finite element modeling and validation of a soft array of spatially coupled dielectric elastomer transducers
Authors: Croce Sipontina , Neu Julian , Moretti Giacomo , Hubertus Jonas , Schultes Günter , Rizzello Gianluca 
Published: June 2022

Abstract
Dielectric elastomer (DE) transducers are suitable candidates for the development of compliant mechatronic devices, such as wearable smart skins and soft robots. If many independently-controllable DEs are closely arranged in an array-like configuration, sharing a common elastomer membrane, novel types of cooperative and soft actuator/sensor systems can be obtained. The common elastic substrate, however, introduces strong electro-mechanical coupling effects among neighboring DEs, which highly influence the overall membrane system actuation and sensing characteristics. To effectively design soft cooperative systems based on DEs, these effects need to be systematically understood and modeled first. As a first step towards the development of soft cooperative DE systems, in this paper we present a finite element simulation approach for a 1-by-3 silicone array of DE units. After defining the system constitutive equations and the numerical assumptions, an extensive experimental campaign is conducted to calibrate and validate the model. The simulation results accurately predict the changes in force (actuation behavior) and capacitance (sensing behavior) of the different elements of the array, when their neighbors are subjected to different electro-mechanical loads. Quantitatively, the model reproduces the force and capacitance responses with an average fit higher than 93% and 92%, respectively. Finally, the validated model is used to perform parameter studies, aimed at highlighting how the array performance depends on a relevant set of design parameters, i.e. DE-DE spacing, DE-outer structure spacing, membrane pre-stretch, array scale, and electrode shape. The obtained results will provide important guidelines for the future design of cooperative actuator/sensor systems based on DE transducers.
Sending-or-not-sending twin field quantum key distribution with imperfect vacuum sources
Authors: Hu Xiao-Long , Jiang Cong , Yu Zong-Wen , Wang Xiang-Bin 
Published: June 2022

Abstract
The sending-or-not-sending (SNS) protocol of the twin-field (TF) quantum key distribution (QKD) can tolerant large misalignment error and its key rate can exceed the linear bound of repeaterless QKD. The original SNS protocol and all variants of TF-QKD require perfect vacuum sources, but in the real world experiments there is no practical perfect vacuum source. Instead, experimenters use extremely weak sources to substitute vacuum sources, which may break the security of the protocol. Here we propose an SNS protocol with imperfect vacuum sources and give the non-asymptotic decoy-state analysis of this protocol. Our numerical simulation shows that when the imperfect vacuum sources are close to perfect vacuum sources, our protocol can obtain similar key rate as that with perfect vacuum sources. This is the first result that closes the potential security loophole due to imperfect vacuum of TF-QKD.