bluuebunny/crossref_metadata_2025 huggingface dataset:
A Novel Analytical Model for Pore Volume Compressibility of Fractal Porous Media
Authors: Lei Gang , Cao Nai , McPherson Brian J. , Liao Qinzhuo , Chen Weiqing
Published: October 2019

Over the past decades, many scholars have been studying the pore volume compressibility (PVC) of porous media. However, the fundamental controls on PVC of porous media are not yet definitive. Some scholars suggest a negative correlation between PVC and initial porosity, while others suggest a positive correlation. Motivated by this discrepancy, this paper presents a new analytical model to study the PVC of fractal porous media. The predictions are compared with test results and thereby validated to be accurate. In our attempt not only to complement but also to extend the capability beyond available models, the derived model accounts for multiple fundamental variables, such as the microstructural parameters and rock lithology of porous media. Results suggest that, there is a negative correlation between PVC and initial porosity, if all other parameters are fixed, the relationship between initial porosity and PVC is not monotonic. In addition, PVC decreases with rougher pore surfaces and smaller initial minimum pore radius. Besides providing theoretical foundations for quantifying PVC of porous media, this analytical model could be applied to estimate pore structure parameters of porous media using inverse modeling.
Universal HIV and Birth Cohort HCV Screening in San Diego Emergency Departments
Authors: Hoenigl Martin , Mathur Kushagra , Blumenthal Jill , Brennan Jesse , Zuazo Miriam , McCauley Melanie , Horton Lucy E. , Wagner Gabriel A. , Reed Sharon L. , Vilke Gary M. , Coyne Christopher J. , Little Susan J.
Published: October 2019

Universal HIV and HCV screening in emergency departments (ED) can reach populations who are less likely to get tested otherwise. The objective of this analysis was to evaluate universal opt-out HIV and HCV screening in two EDs in San Diego. HIV screening for persons aged 13–64 years (excluding persons known to be HIV+ or reporting HIV testing within last 12 months) was implemented using a 4th generation HIV antigen/antibody assay; HCV screening was offered to persons born between 1945 and 1965. Over a period of 16 months, 12,575 individuals were tested for HIV, resulting in 33 (0.26%) new HIV diagnoses, of whom 30 (90%) were successfully linked to care. Universal screening also identified 74 out-of-care for >12-months HIV+ individuals of whom 50 (68%) were successfully relinked to care. Over a one-month period, HCV antibody tests were conducted in 905 individuals with a seropositivity rate of 9.9% (90/905); 61 seropositives who were newly identified or never treated for HCV had HCV RNA testing, of which 31 (51%) resulted positive (3.4% of all participants, including 18 newly identified RNA positives representing 2% of all participants), and 13/31 individuals (42%) were linked to care. The rate of newly diagnosed HCV infections exceeded the rate of newly diagnosed HIV infections by >7-fold, underlining the importance of HCV screening in EDs.
Author Correction: Non-alcoholic fatty liver disease and cerebral small vessel disease in Korean cognitively normal individuals
Authors: Jang Hyemin , Kang Danbee , Chang Yoosoo , Kim Yeshin , Lee Jin San , Kim Ko Woon , Jang Young Kyoung , Kim Hee Jin , Na Duk L. , Shin Hee Young , Kang Mira , Guallar Eliseo , Cho Juhee , Seo Sang Won
Published: October 2019

An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Modulating intramolecular chalcogen bonds in aromatic (thio)(seleno)phene-based derivatives
Authors: Trujillo Cristina , Rozas Isabel , Elguero José , Alkorta Ibon , Sánchez-Sanz Goar
Published: October 2019

Intramolecular chalcogen interactions have been studied for four different derivatives of compounds within two different families,SorSe, to evaluate the effect of these IMChBs in the stability of the interacting and non-interacting systems.
Exploring chemical space with alchemical derivatives: alchemical transformations of H through Ar and their ions as a proof of concept
Authors: Balawender Robert , Lesiuk Michael , De Proft Frank , Van Alsenoy Christian , Geerlings Paul
Published: October 2019

Alchemical derivatives have been used previously to obtain information about transformations in which the number of electrons is unchanged. Here an approach for combining changes in both the number of electrons and the nuclear charge is presented.
Transport of food- and catalytic-grade titanium dioxide nanoparticles in controlled field streams with varying streambed and biofilm conditions
Authors: Kim Junyeol , Roche Kevin R. , Sticha John , Shogren Arial J. , Bolster Diogo , Doudrick Kyle
Published: October 2019

With the increased use of nanoparticles (NPs) in consumer, food, and pharmaceutical products, their eventual release into streams is inevitable.
A novel demonstration of adhered material mobilisation by hydraulic transients
Authors: Weston Sally L. , Collins Richard P. , Boxall Joby B.
Published: October 2019

Laboratory experiments have shown that pipe-wall adhered material can be mobilised by transients, where steady-state hydraulic conditions cannot. This process is critical to managing water quality risks in drinking water distribution systems.
In vitro and in vivo testing of the hypocholesterolemic activity of ergosterol- and β-glucan-enriched extracts obtained from shiitake mushrooms (Lentinula edodes)
Authors: Morales Diego , Tejedor-Calvo Eva , Jurado-Chivato Noelia , Polo Gonzalo , Tabernero María , Ruiz-Rodríguez Alejandro , Largo Carlota , Soler-Rivas Cristina
Published: October 2019

Herein, two shiitake fractions were obtained: the ergosterol-enriched fraction exerted higher in vitro hypocholesterolemic activity and the β-glucan-enriched fraction reduced the cholesterol levels in mice.
p-Nitro-tetradecyloxy-calix[4]arene as a highly selective stationary phase for gas chromatographic separations
Authors: Sun Tao , Shuai Xiaomin , Bin Li , Ren Kaixin , Jiang Xingxing , Chen Haipeng , Hu Shaoqiang , Cai Zhiqiang
Published: October 2019

Here, we report the first example of the utilization of p-nitro-tetradecyloxy-calix[4]arene (C4A-NO2) as a stationary phase for capillary gas chromatographic (GC) separations.
Efficient light harvesting in hybrid quantum dot–interdigitated back contact solar cells via resonant energy transfer and luminescent downshifting
Authors: Krishnan Chirenjeevi , Mercier Thomas , Rahman Tasmiat , Piana Giacomo , Brossard Mael , Yagafarov Timur , To Alexander , Pollard Michael E. , Shaw Peter , Bagnall Darren M. , Hoex Bram , Boden Stuart A. , Lagoudakis Pavlos G. , Charlton Martin D. B.
Published: October 2019

In this paper,we propose a hybrid quantum dot (QD)/Solar cell configuration to improve the performance of IBC silicon solar cells through efficient utilisation of resonant energy transfer (RET) and luminescent downshifting (LDS).
N,S–Codoped hierarchical porous carbon spheres embedded with cobalt nanoparticles as efficient bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries
Authors: Zhu Xiaojing , Dai Jiale , Li Ligui , Wu Zexing , Chen Shaowei
Published: October 2019

N,S-Codoped hierarchical porous carbon spheres embedded with cobalt nanoparticles as efficient bifunctional oxygen reversible electrocatalysts for high-performance rechargeable Zinc–air batteries.
Intermolecular scandium triflate-promoted nitrene-transfer [5 + 1] cycloadditions of vinylcyclopropanes
Authors: Laudenschlager Julie E. , Combee Logan A. , Hilinski Michael K.
Published: October 2019

Sc(OTf)3-promoted [5 + 1] cycloaddition of vinylcyclopropanes with PhINTs is reported, enabling the regioselective preparation of a range of 1,2,3,6-tetrahydropyridine scaffolds under mild conditions.
Anion replacement in silver chlorobromide nanocubes: two distinct hollowing mechanisms
Authors: Abeyweera Sasitha C. , Stewart Shea , Sun Yugang
Published: October 2019

Mechanistic studies on the controlled conversion of silver chlorobromide nanocubes into silver-based hollow nanostructures through chemical transformations.
General approach to 2-fluoroalkyl 1,3-azolesviathe tandem ring opening and defluorinative annulation ofN-fluoroalkyl-1,2,3-triazoles
Authors: Motornov Vladimir , Košťál Vojtěch , Markos Athanasios , Täffner Dominik , Beier Petr
Published: October 2019

Synthesis of 2-fluoroalkyl imidazoles, oxazoles and thiazoles fromN-fluoroalkyl-1,2,3-triazoles was developed.
Branched EHNBR and its properties with enhanced low-temperature performance and oil resistance
Authors: Liang Lu , Dong Jianjun , Yue Dongmei
Published: October 2019

Epoxide nitrile butadiene rubber (ENBR) was prepared via in situ epoxidation from nitrile butadiene rubber (NBR) with acetic acid and hydrogen peroxide.
The roughness of deciduous dentin surface and shear bond strength of glass ionomers in the treatment with four minimally invasive techniques
Authors: Moyaho-Bernal María de los Angeles , Badillo-Estévez Bitia Eunice , Soberanes-de la Fuente Ester Luminosa , González-Torres Maykel , Teutle-Coyotecatl Bernardo , Rubín de Celís-Quintana Gisela Nataly , Carrasco-Gutiérrez Rosendo , Vaillard-Jiménez Esther , Lezama-Flores Gloria
Published: October 2019

The concept of minimally invasive technique in dentistry emphasizes conservative strategies in the management of caries, which results in less destruction of healthy tooth structure.
Retracted Article: Melatonin protects spinal cord injury by up-regulating IGFBP3 through the improvement of microcirculation in a rat model
Authors: Wang Kun , Li Meng , Jin Linyu , Deng Chao , Chen Zhi , Chen Hao , Han Yingchao , Qian Lie , Li Xinfeng , Shen Hongxing
Published: October 2019

The present study was aimed at the investigation of the effects of melatonin on spinal cord injury (SCI) and the role of IGFBP3 in SCI both in vivo and in vitro.
Biological characterization of surface-treated dental implant materials in contact with mammalian host and bacterial cells: titanium versus zirconia
Authors: Siddiqui Danyal A. , Jacob Joel J. , Fidai Alikhan B. , Rodrigues Danieli C.
Published: October 2019

Early-colonizing oral bacterial adhesion and mammal cell proliferation were similar on surface-treated titanium and zirconia.
An effective method to improve the growth rate of large single crystal diamonds under HPHT processes: optimized design of the catalyst geometric construction
Authors: Li Yadong , Wang Chunxiao , Chen Liangchao , Guo Longsuo , Zhang Zhuangfei , Fang Chao , Ma Hongan
Published: October 2019

In this work, we presented the influence of catalyst geometric construction on temperature distribution, flow structure, the transport processes of the carbon atoms, and the resulting diamond growth in the process of HPHT diamond synthesis.
High-throughput metabolomics for evaluating the efficacy and discovering the metabolic mechanism of Luozhen capsules from the excessive liver-fire syndrome of hypertension
Authors: Wang Xi-jun , Gao Xin , Zhang Ai-hua , Wu Fang-fang , Yan Guang-li , Sun Hui
Published: October 2019

Essential hypertension (EH) is a chronic disease characterized by a variety of causes of elevated systemic arterial pressure, which often causes functional or organic damage to important organs such as the heart, brain, and kidney.
Computational fluid dynamics simulation as a tool for optimizing the hydrodynamic performance of membrane bioreactors
Authors: Jin Yan , Liu Cheng-Lin , Song Xing-Fu , Yu Jian-Guo
Published: October 2019

The hydrodynamic properties and shear stresses experienced by a membrane bioreactor (MBR) are directly related to its rate of membrane fouling.
Structure-based design of nucleoside-derived analogues as sulfotransferase inhibitors
Authors: Kershaw Neil M. , Byrne Dominic P. , Parsons Hollie , Berry Neil G. , Fernig David G. , Eyers Patrick A. , Cosstick Richard
Published: October 2019

Regulated sulfation of biomolecules by sulfotransferases (STs) plays a role in many biological processes with implications for a number of disease areas. A structure-based approach and molecular docking were used to design a library of ST inhibitors.
Achieving efficient inverted perovskite solar cells with excellent electron transport and stability by employing a ladder-conjugated perylene diimide dimer
Authors: Wang Helin , Yang Fu , Xiang Yuren , Ye Shuai , Peng Xiao , Song Jun , Qu Junle , Wong Wai-Yeung
Published: October 2019

A ladder-conjugated perylene diimide dimer containing an indacenodithiophene unit was developed and used as a high efficiency electron transport layer in inverted perovskite solar cells.
How insignificant modifications of photocatalysts can significantly change their photocatalytic activity
Authors: Trochowski Mateusz , Kobielusz Marcin , Mróz Krystian , Surówka Marcin , Hämäläinen Jani , Iivonen Tomi , Leskelä Markku , Macyk Wojciech
Published: October 2019

Slight surface modifications of TiO2(“insignificant” at first glance), such as exposing to reducing or oxidizing agents and deposition of small amounts of a semiconductor material at the surface, may strongly affect the photoactivity of materials.
Green radicals of potassium poly(heptazine imide) using light and benzylamine
Authors: Markushyna Yevheniia , Lamagni Paolo , Teutloff Christian , Catalano Jacopo , Lock Nina , Zhang Guigang , Antonietti Markus , Savateev Aleksandr
Published: October 2019

A method to count the number of electrons accumulated in carbon nitride green radicals using a methylviologen redox indicator is reported.
High-activity Mo, S co-doped carbon quantum dot nanozyme-based cascade colorimetric biosensor for sensitive detection of cholesterol
Authors: Zhao Lianjing , Wu Zepei , Liu Guannan , Lu Huiying , Gao Yuan , Liu Fangmeng , Wang Chenguang , Cui Jiuwei , Lu Geyu
Published: October 2019

A Mo, S co-doped carbon quantum dot nanozyme-based cascade colorimetric sensing platform was fabricated and its application for detection of cholesterol was shown.
Tailoring a periodic metal nanoantenna array using low cost template-assisted lithography
Authors: Colombelli Adriano , Lospinoso Daniela , Taurino Antonietta , Manera Maria Grazia
Published: October 2019

Tailoring the optical response of metal nanoparticles by controlling their morphology is a key topic in the field of nano-optics. Here, a simple approach for the fabrication of tunable plasmonic nanostructures by nanosphere lithography is presented.
High-performance polymer LED using NiOx as a hole-transport layer
Authors: Chen Sy-Hann , Shih Kai-Yu , Hwang Jun-Dar , Yu Chang-Feng
Published: October 2019

We present an investigation of polymer light-emitting diodes (PLEDs) with a nickelous oxide (NiOx) interlayer fabricated using a radio-frequency magnetron sputtering system.
Original polymorphism in a naphthalene bisimide π-conjugated organogelator: a complex interplay between hydrogen bonding and heterocycle π-stacking
Authors: Diebold Morgane , Christ Elliot , Biniek Laure , Karmazin Lydia , Heinrich Benoît , Contal Christophe , Ghosh Suhrit , Mesini Philippe J. , Brinkmann Martin
Published: October 2019

A naphthalene bisimide organogelator forms different supramolecular assemblies in the gel phase and in the solid states; the structures of these different polymorphs have been uncovered by electron and X-ray diffraction, UV and FTIR spectroscopies.
High gain broadband photoconductor based on amorphous Ga2O3 and suppression of persistent photoconductivity
Authors: Zhou Haitao , Cong Lujia , Ma Jiangang , Li Bingsheng , Chen Mingzhu , Xu Haiyang , Liu Yichun
Published: October 2019

In this work, a high gain broadband photoconductor based on a wide bandgap amorphous gallium oxide film was reported. Meanwhile, a novel short-time heating method was demonstrated to effectively suppress the PPC effect.
A Comparison of the Storage-Only Deficit and Joint Mechanism Deficit Hypotheses of the Verbal Working Memory Storage Capacity Limitation of Children With Developmental Language Disorder
Authors: Montgomery James W. , Gillam Ronald B. , Evans Julia L. , Schwartz Sarah , Fargo Jamison D.
Published: October 2019

Purpose

The storage-only deficit and joint mechanism deficit hypotheses are 2 possible explanations of the verbal working memory (vWM) storage capacity limitation of school-age children with developmental language disorder (DLD). We assessed the merits of each hypothesis in a large group of children with DLD and a group of same-age typically developing (TD) children.

Method

Participants were 117 children with DLD and 117 propensity-matched TD children 7–11 years of age. Children completed tasks indexing vWM capacity, verbal short-term storage, sustained attention, attention switching, and lexical long-term memory (LTM).

Results

For the DLD group, all of the mechanisms jointly explained 26.5% of total variance. Storage accounted for the greatest portion (13.7%), followed by controlled attention (primarily sustained attention; 6.5%) and then lexical LTM (5.6%). For the TD group, all 3 mechanisms together explained 43.9% of total variance. Storage accounted for the most variance (19.6%), followed by lexical LTM (16.0%), sustained attention (5.4%), and attention switching (3.0%). There was a significant LTM × Group interaction, in which stronger LTM scores were associated with significantly higher vWM capacity scores for the TD group as compared to the DLD group.

Conclusions

Results support a joint mechanism deficit account of the vWM capacity limitation of children with DLD. Results provide substantively new insights into the underlying factors of the vWM capacity limitation in DLD.

Supplemental Material

https://doi.org/10.23641/asha.9932312
Vehicle detection in intelligent transport system under a hazy environment: a survey
Authors: Husain Agha Asim , Maity Tanmoy , Yadav Ravindra Kumar
Published: October 2019

Developing an intelligent transportation system has attracted a lot of attention in the recent past. Moreover, with the growing number of vehicles on the road most nations are adopting an intelligent transport system (ITS) for handling issues like traffic flow density, queue length, the average speed of the traffic, and total vehicles passing through a point in a specific time interval and so on. ITS by capturing traffic images and videos through cameras, helps the traffic control centres in monitoring and managing the traffic. Efficient and unfailing vehicle detection is a crucial step for the ITS. This study reviews different techniques and applications used around the world for vehicle detection under various environmental conditions based on video processing systems. This study also discusses the types of cameras used for vehicle detections, and the classification of vehicles for traffic monitoring and controlling. This study finally highlights the problems encountered during surveillance under extreme weather conditions.
Image retrieval based on ASIFT features in a Hadoop clustered system
Authors: Huang Yin‐Fu , Wu Huan‐Yu
Published: October 2019

For image matching, the scale invariant feature transform (SIFT) algorithm is a commonly used one. They are invariant to image rotation, scale zooming, and partially invariant to change in illumination and 3D camera viewpoint. Affine SIFT (ASIFT) is an extension of SIFT, which solves the problem when images are captured at different angles. However, ASIFT has higher computational complexity than SIFT, due to a huge amount of features in the images. Therefore, in this study, a Hadoop‐based image retrieval system is proposed to solve the ASIFT shortcomings of high computation by the MapReduce technology. The system uses a combination of the Bag‐of‐Words method and support vector machine. Finally, the experimental results verify that the proposed method is more effective than the other state‐of‐the‐art methods for a variety of datasets.
Compressive sensing‐based super‐resolution DOA estimation for mechanical scanning radar
Authors: Cheng Fanglei , Wang Hongyu , Li Yang
Published: October 2019

This study presents a novel super‐resolution directions of arrival (DOA) estimation method for mechanical scanning radar by using the advanced compressive sensing algorithm. This method is implemented by constructing a signal model of the mechanical scanning radar through imitating the array radar signal model. Also then it established the compression relationship between the transmitted and received echo signals of the reader by sparsification technique of sending signals. Finally, the DOA estimation can be solved by employing advanced compressive sensing algorithm including basic pursuit (BP), orthogonal matching pursuit (OMP), regularised orthogonal matching pursuit algorithms and so on. Compared with the conventional super‐resolution DOA estimation method such as multiple signal classification, the proposed method can distinguish two or more targets within one beamwidth more precisely. Compared with the earlier super‐resolution DOA estimation method such as maximum likelihood, the proposed method can obtain more accurate and robust angle difference estimation and do not need to previously know the source number. Both simulated and experimental results show that the overall performance of the proposed DOA estimation is better than that of other methods.
Focal-plane wavefront sensing with the vector-Apodizing Phase Plate
Authors: Bos S. P. , Doelman D. S. , Lozi J. , Guyon O. , Keller C. U. , Miller K. L. , Jovanovic N. , Martinache F. , Snik F.
Published: October 2019

Context.One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) in the optical train downstream of the instrument’s main wavefront sensor split-off.

Aims.In this article we show that the vector-Apodizing Phase Plate (vAPP) coronagraph can be designed such that the coronagraphic point spread functions (PSFs) can act as wavefront sensors to measure and correct the (quasi-)static aberrations without dedicated wavefront sensing holograms or modulation by the deformable mirror. The absolute wavefront retrieval is performed with a non-linear algorithm.

Methods.The focal-plane wavefront sensing (FPWFS) performance of the vAPP and the algorithm are evaluated via numerical simulations to test various photon and read noise levels, the sensitivity to the 100 lowest Zernike modes, and the maximum wavefront error (WFE) that can be accurately estimated in one iteration. We apply these methods to the vAPP within SCExAO, first with the internal source and subsequently on-sky.

Results.In idealized simulations we show that for 107photons the root mean square (rms) WFE can be reduced to ∼λ/1000, which is 1 nm rms in the context of the SCExAO system. We find that the maximum WFE that can be corrected in one iteration is ∼λ/8 rms or ∼200 nm rms (SCExAO). Furthermore, we demonstrate the SCExAO vAPP capabilities by measuring and controlling the 30 lowest Zernike modes with the internal source and on-sky. On-sky, we report a raw contrast improvement of a factor ∼2 between 2 and 4λ/Dafter five iterations of closed-loop correction. When artificially introducing 150 nm rms WFE, the algorithm corrects it within five iterations of closed-loop operation.

Conclusions.FPWFS with the vAPP coronagraphic PSFs is a powerful technique since it integrates coronagraphy and wavefront sensing, eliminating the need for additional probes and thus resulting in a 100% science duty cycle and maximum throughput for the target.
Multifrequency JVLA observations of the X-shaped radio galaxy in Abell 3670
Authors: Bruno L. , Gitti M. , Zanichelli A. , Gregorini L.
Published: October 2019

Context.X-shaped radio galaxies (XRGs) exhibit a pair of bright primary lobes and a pair of weak secondary lobes (“wings”), which are oriented with an angle that gives the structure a cross-like shape. Though several theoretical models have been proposed to explain their origin, there is currently not a general consensus on a formation scenario.

Aims.We analysed new multifrequencyKarl G. JanskyVery Large Array (JVLA) radio data at 1.5, 5.5, 6, and 9 GHz of the candidate XRG in Abell 3670 (A3670) in order to characterise and classify it for the first time and to investigate its origin.

Methods.We produced flux, spectral index, and radiative age maps of A3670 by means of the new radio data. We investigated the connection between the radio galaxy and its host, a brightest cluster galaxy (BCG) with two optical nuclei classified as a dumbbell galaxy. Finally we discussed the literature models and compared them to the observed properties of A3670.

Results.We classify A3670 as a Fanaroff–Riley I-type XRG and measured a 1.4 GHz radio power ofP1.4 = 1.7 × 1025W Hz−1. By estimating the radiative age of the various source components, we find that the wings are Δt ≃ 20 Myr older than the lobes. We verified that the lobes and wings are aligned with the major and minor axes of the optical galaxy, respectively, and we estimated a black hole mass ofMBH ∼ 109 M⊙, which is in agreement with the typical properties of the XRGs.

Conclusions.Among the discussed scenarios, the jet-shell interaction model may best reproduce the observed properties of A3670. The gas of a stellar shell is responsible for the deflection of the jets, thus forming the wings. The presence of stellar shells in A3670 is plausible, but it needs further optical observations to be confirmed.
„Die letzte Visite“: Leichenschau im Notarztdienst
Authors: Ondruschka Benjamin , Buschmann Claas
Published: October 2019

Die Feststellung des Todes ist eine nicht delegierbare ärztliche Aufgabe und muss mit der gleichen Souveränität beherrscht werden wie alle ärztlichen Maßnahmen, die am lebenden Patienten durchgeführt werden.
Der gynäkologische Notfall – Teil 2: gynäkologische Ursachen des unklaren Abdomens
Authors: Weißleder Anne , Egbe Anne , Beinkofer Daniela , Kulla Martin , Treffer Dominik
Published: October 2019

Der Artikel stellt wichtige Differenzialdiagnosen des typischen Präsentationssymptoms beim gynäkologischen Notfall – das unklare Abdomen der Frau – anhand von Szenarien aus dem prä- und innerklinischen Bereich vor: extrauterine Schwangerschaft, Pelvic inflammatory Disease (PID), Ovarialtorsion, Ovarialzystenruptur und Dysmenorrhö.
Die tolle Knolle
Authors: Ell-Beiser Helga
Published: October 2019

Ob als sogenannter Bauernfango und Trunk in der Hausmedizin oder nahezu optimaler Nährstofflieferant in der Küche – die Kartoffel bietet zahlreiche Anwendungsmöglichkeiten.
Von Erfolgsfaktoren, Hindernissen und Bedarfen zu Schlüsselkomponenten der kommunalen Bewegungsförderung bei Menschen mit sozialer Benachteiligung: Bericht von einem Workshop
Authors: Kohler Simone , Semrau Jana , Janz Lukas , Helsper Natalie , Abu-Omar Karim , Pfeifer Klaus , Rütten Alfred
Published: October 2019

Zur Umsetzung der Nationalen Empfehlungen für Bewegung und Bewegungsförderung für die gesamte Bevölkerung unter Berücksichtigung von Zugangswegen zu Menschen mit sozialer Benachteiligung im kommunalen Kontext werden im Projekt KOMBINE (Kommunale Bewegungsförderung zur Implementierung der Nationalen Empfehlungen) neben wissenschaftlichen Erkenntnissen auch die politischen und praktischen Erfahrungen aus der Kommune berücksichtigt.

In allen Projektphasen ist ein Aktivierungs- und Beteiligungsansatz grundlegend. Hierzu wurden bundesweit Akteure zu einem Workshop eingeladen, um gemeinsam Erfolgsfaktoren, Hindernisse und Bedarfe der kommunalen Bewegungsförderung mit Fokus auf Menschen mit sozialer Benachteiligung zu identifizieren.

Durch einen moderierten Austausch zwischen 60 Workshop-Teilnehmern aus elf Bundesländern konnten neun Schlüsselkomponenten kommunaler Bewegungsförderung ermittelt werden. Die Berücksichtigung dieser Schlüsselkomponenten wird als eine wesentliche Voraussetzung für den erfolgreichen und nachhaltigen Aufbau kommunaler Strukturen der Bewegungsförderung gesehen.

Es ist gelungen, mithilfe eines Aktivierungs- und Beteiligungsansatzes die Expertisen von kommunalen, politischen und wissenschaftlichen Akteuren einzubinden, um relevante Schlüsselkomponenten der kommunalen Bewegungsförderung abzuleiten. Diese bilden die Grundlage für die Entwicklung eines Handlungsmodells der kommunalen Bewegungsförderung, welches in einem nächsten Schritt kontextspezifisch in Modellkommunen erprobt wird.
Erbringung von Laborleistungen
Authors: Penner Andreas
Published: October 2019

Labordiagnostik ist für die Rheumatologie unerlässlich in medizinischer Hinsicht und für die ambulante Versorgung als Eigenlabor durch die Rheumatologen auch wirtschaftlich. Folglich haben die insbesondere in der ambulanten Versorgung anhaltenden Veränderungen der Laborvergütungen Auswirkungen auf die Rahmenbedingungen für eine qualitativ hochwertige Versorgung. Diese Änderungen der Rahmenbedingungen, die in jüngerer Zeit erfolgten und in den nächsten Jahren vermutlich zu erwarten sind, werden nachstehend beleuchtet.
Der Einfluss des Bundessozialgerichtes auf die Organisation der Leistungserbringung am Beispiel des OPS 8–983 und des Off-Label-Use
Authors: Bohmeier André , Koopmann-Röckendorf Tanja
Published: October 2019

Das Bundessozialgericht stellt mit seinen Entscheidungen regelmäßig detaillierte Vorgaben zu den Mindestmerkmalen oder sonstigen Voraussetzungen zur Zulässigkeit der Kodierung von Diagnosen- oder Prozedurenschlüssel oder zulässigen Anwendung von Arzneimitteln im Off-Label-Use auf. Die Nichtbeachtung dieser Voraussetzung führt regelmäßig zum Ausschluss der kompletten Vergütung für den Behandlungsfall. Daneben drohen Rückforderungen der Krankenkassen bereits gezahlter Vergütungen bis zur Verjährungsgrenze von 2 bzw. 4 Jahren in die Vergangenheit. Die zügige Umsetzung der durch die Rechtsprechung aufgestellten Vorgaben ist daher essenziell für die Erlössicherung.
Infektionen unter der Behandlung mit Biologika: Erfahrung der Juvenile Inflammatory Rheumatism cohort (JIR-Kohorte)
Authors: Hofer Michaël , Belot Alexandre , Hofer François , Hentgen Véronique
Published: October 2019

Die Juvenile Inflammatory Rheumatism (JIR) Kohorte ist eine internationale, multizentrische Beobachtungsstudie, deren Daten webbasiert erfasst werden. Sie ist modular aufgebaut und kann als elektronische Patientenakte sowie für wissenschaftliche Untersuchungen genutzt werden. Primär wurde die JIR-Kohorte auf den Weg gebracht, um mehr Informationen zur Sicherheit und Wirksamkeit von krankheitsmodifizierenden antirheumatischen Medikamenten (DMARDs) bei Kindern und Jugendlichen mit entzündlichen rheumatischen Erkrankungen zu gewinnen. Die erste Analyse zur Sicherheit von biologischen DMARDs bei 813 Patienten mit entzündlich rheumatischen Erkrankungen wies keine neuen Sicherheitssignale nach. Die weitere Überwachung von Patienten mit langfristiger Arzneimittelexposition bereits ab dem Kindes- und Jugendalter ist notwendig, um zuverlässige Daten über die Langzeitsicherheit und -wirksamkeit von DMARDs bei juvenilen rheumatischen Erkrankungen zu erhalten. Darüber hinaus wird die JIR-Kohorte für weitere Forschungsfragen eingesetzt, z. B. zur Untersuchung der Verträglichkeit von Impfungen bei immunsupprimierten Kindern oder zur Charakterisierung spezieller Krankheitsmanifestationen, wie einer Uveitis.
Morphological and Histological Study of an ‘Iliac Venous Ladder’ Associated with Very Short Common Iliac Arteries
Authors: Nayak Satheesha B. , Surendran Sudarshan , Nelluri Venu Madhav , Shetty Prakashchandra
Published: October 2019

Introduction Communications between iliac veins in the pelvis are reported to be rare occurrences, which are mostly due to developmental abnormalities. The common iliac vein is formed by the joining of the internal and external iliac veins. Here, we present a detailed morphological and histological study of a rare communication found between the internal and external iliac veins, which would prove to be of substantial value to the knowledge of vessels in the pelvis, both for clinicians and surgeons.

Materials and Methods In the present study, we came across a rare communication in the form of a ladder, between the left internal and external iliac veins in a 70-year-old male cadaver. There were two communications (named upper and lower communications) between the external and internal iliac veins, before they joined to form the common iliac vein. On naked eye observation, the lumen of the right common iliac vein appeared to be wider than on the left side. The lengths of these communications and the distance between each of their attachments have been measured and tabulated. The walls of these veins, their microscopic sections and their communication involved in the case were taken. The possible causes for these variations were congenital, owing to the complicated nature of the developmental process involved in the formation of the inferior vena cava and the venous system of the lower limb.

Results The structure of all the veins involved in this case and the communications were seen to be normal. The thickness of these walls were measured and tabulated for uniformity around the circumference of the wall of these veins. All the measurements from the structural variations and from the histological observations are tabulated in our results.

Conclusion The complicated development sequence of these veins could have possibly led to the persistence of these communications. Such a developmental variation does not seem to pose any threat until unless encountered under clinical or surgical interventions, as the histological structure of the walls of the communications as well as the major channels connected appeared to be normal and well-developed. The detailed morphological and histological features of these structures involved in the variation along with the possible complications have been presented in the present report. Knowledge of these variations and complications due to injury plays a key role in a clinical setup.
Improving the Effectiveness of Health Information Technology: The Case for Situational Analytics
Authors: Novak Laurie Lovett , Anders Shilo , Unertl Kim M. , France Daniel J. , Weinger Matthew B.
Published: October 2019

Health information technology has contributed to improvements in quality and safety in clinical settings. However, the implementation of new technologies in health care has also been associated with the introduction of new sociotechnical hazards, produced through a range of complex interactions that vary with social, physical, temporal, and technological context. Other industries have been confronted with this problem and have developed advanced analytics to examine context-specific activities of workers and related outcomes. The skills and data exist in health care to develop similar insights through situational analytics, defined as the application of analytic methods to characterize human activity in situations and identify patterns in activity and outcomes that are influenced by contextual factors. This article describes the approach of situational analytics and potentially useful data sources, including trace data from electronic health record activity, reports from users, qualitative field data, and locational data. Key implementation requirements are discussed, including the need for collaboration among qualitative researchers and data scientists, organizational and federal level infrastructure requirements, and the need to implement a parallel research program in ethics to understand how the data are being used by organizations and policy makers.
Huge Retroperitoneal Dermoid: A Presentation
Authors: Huda Tanweerul , Singh Mahendra Pratap
Published: October 2019

Teratoma can be defined as a true neoplasm that contains tissues that either are foreign to the primary site of origin or are histologically diverse and represent more than one of the embryonic germ layers. A 20-year-old female patient presented with chief complaints of swelling in the right upper abdomen since childhood and back pain for the past 4 years. Per abdomen, examination revealed a lump of around 15 cm in size in the right hypochondrial region extending to the epigastric region. Contrast-enhanced computed tomography abdomen revealed a 14.3 × 14.1 × 17.4 cm well-defined heterogeneously hypoattenuating nonenhancing complex cystic mass with focal areas of calcifications and fat attenuation in retroperitoneum. The patient was taken up for exploratory laparotomy and a tumor was found in the retroperitoneum, retrocavally and was excised with due care. Histopathological examination features were suggestive of mature cystic teratoma. The postoperative stay was uneventful.
Sociodemographic, Rationale Drug Use of Antiepileptic Drugs among Pediatric Patients with Epilepsy: A Prospective Study at a Tertiary Care Hospital
Authors: Dwajani S. , Adarsh E. , Nirmala K. S. , Sahajananda H.
Published: October 2019

Background  Drug utilization studies are important and considered as a potential tool for the evaluation of health care systems. The goal of drug utilization research studies should be to assess whether drug therapy is rational or not.

Objective  The main aim of this article is to analyze the different types of epilepsy and their drug utilization pattern in children with epilepsy at the Department of Pediatrics and evaluate the extent of older and newer antiepileptic drugs (AEDs), either as monotherapy or polytherapy in pediatric age groups.

Materials and Methods  To look into the sociodemographic profile of children with epilepsy, the type of epilepsy was diagnosed along with drug utilization pattern in children attending both outpatient and inpatient department of pediatrics. Demographic details were collected according to modified Kuppuswamy scale. Disease characteristics such as type of epilepsy, onset, duration, time since last attack, family history, comorbid conditions, monotherapy/polytherapy, dose, and duration of treatment were noted. Investigations such as electroencephalography, magnetic resonance imaging, and computed tomographic scan if any were recorded.

Results  In this pilot study, we have 100 patients, younger than 18 years, with confirmed cases of epilepsy, receiving AEDs either monotherapy or polytherapy. Male predominance was 56%, and 60% were from rural areas and 40% were from urban areas. As per the modified Kuppuswamy scale, we analyzed socioeconomic class of these 100 patients and found that 40% belong to lower-middle-class family. Nearly 51% were diagnosed with generalized tonic clonic seizures, 30% were with febrile seizures, while focal, partial, absence, and myoclonic seizures, and hot water epilepsy were less in percentage. Almost 83% received monotherapy, while only 17% received polytherapy. Among monotherapy, 51.80% received older AEDs and 48.20% received newer drugs.

Conclusion  Although epilepsy can be controlled and managed effectively with older AEDs, an experience in management with newer AEDs is required to offer an additional advantage to patients to have better safety profile.
High Prevalence of Asymptomatic Anterior Tarsal Tunnel Syndrome in Toddy Tappers of South India: A Case Series of 21 Participants
Authors: Panwar Ajay , Madhavarao Veeramalla , Mohammed Owais , Valupadas Chandrasekhar
Published: October 2019

Background  Anterior tarsal tunnel syndrome (ATTS) is an uncommon entrapment neuropathy which occurs due to the compression of deep peroneal nerve under the inferior extensor retinaculum at the ankle. We observed a frequent occurrence of this syndrome in toddy palm tappers and hence, planned to study the association between the two.

Materials and Methods  We studied the prevalence of isolated deep peroneal neuropathy at the ankle among the asymptomatic toddy tappers enrolled over a period of 3 months.

Results  In our case series, 81% (17/21) of the study participants had ATTS of which 43% (9/21) had unilateral and 38% (8/21) had bilateral involvement. There was a strong inverse association (p < 0.001) of “duration of toddy tapping in years” with peroneal (extensor digitorum brevis) amplitudes on both the sides.

Conclusion  Our study confirms “palm tree climbing” to be an occupational etiology of ATTS.
Klinikunternehmen: Auf-/Absteiger des Monats
Authors: Schmidt Hartmut
Published: October 2019

Börsenexperte Hartmut Schmidt analysiert für kma die Jahresabschlüsse ausgewählter Kliniken
Europäischer gesundheitskongress münchen: Pflegefachkräfte aus dem Ausland: Ein Albtraum, wenn sie wieder gehen…
Authors: Küng Claudia
Published: October 2019

Sie gelten als ein Rettungsanker gegen den Kollaps in der Pflege: Die Zahl ausländischer Pflegefachkräfte in Deutschland hat sich binnen fünf Jahren fast versechsfacht. Die Konzertierte Aktion Pflege will diese Entwicklung jedoch noch beschleunigen. Denn Experten rechnen damit, dass bis 2025 rund 150 000 zusätzliche Pflegekräfte benötigt werden.
Klimamanagement: CO2 und Kosten sparen - mit einem KLI(C)
Authors: Heeser Alexandra
Published: October 2019

Krankenhäuser und Reha-Kliniken verbrauchen viel Energie, Wasser und andere Ressourcen. Es gibt zahlreiche Einzelmaßnahmen oder bundeslandspezifische Klimaaschutzprojekte, jedoch kein gemeinschaftliches Vorgehen. KLIK green, eine Qualifizierungsmaßnahme für Klimamanager, verankert Klimaschutz im Krankenhausmanagement und im klinischen Alltag von 250 Krankenhäusern und soll damit Breitenwirkung entfalten.
Vom finanz-In den kliniksektor: „Geld ist nicht alles!“
Authors: Lang Michael
Published: October 2019

Wie erlebt ein IT-Sicherheitsexperte den Wechsel von der Finanzwirtschaft in die Gesundheitsbranche? Bernhard Bues, seit März Informationssicherheitsmanager der Mühlenkreiskliniken, gibt Auskunft über seine Arbeit.
(Bi0.2Sb0.8)2Te3 based dynamic synapses with programmable spatio-temporal dynamics
Authors: Wan Qingzhou , Zhang Peng , Shao Qiming , Sharbati Mohammad T. , Erickson John R. , Wang Kang L. , Xiong Feng
Published: October 2019

Neuromorphic computing has recently emerged as a promising paradigm to overcome the von-Neumann bottleneck and enable orders of magnitude improvement in bandwidth and energy efficiency. However, existing complementary metal-oxide-semiconductor (CMOS) digital devices, the building block of our computing system, are fundamentally different from the analog synapses, the building block of the biological neural network—rendering the hardware implementation of the artificial neural networks (ANNs) not scalable in terms of area and power, with existing CMOS devices. In addition, the spatiotemporal dynamic, a crucial component for cognitive functions in the neural network, has been difficult to replicate with CMOS devices. Here, we present the first topological insulator (TI) based electrochemical synapse with programmable spatiotemporal dynamics, where long-term and short-term plasticity in the TI synapse are achieved through the charge transfer doping and ionic gating effects, respectively. We also demonstrate basic neuronal functions such as potentiation/depression and paired-pulse facilitation with high precision (>500 states per device), as well as a linear and symmetric weight update. We envision that the dynamic TI synapse, which shows promising scaling potential in terms of energy and speed, can lead to the hardware acceleration of truly neurorealistic ANNs with superior cognitive capabilities and excellent energy efficiency.
The vanishing adiabatic exponent limits of Riemann solutions to the isentropic Euler equations for power law with a Coulomb-like friction term
Authors: Sheng Shouqiong , Shao Zhiqiang
Published: October 2019

In this paper, we investigate the vanishing adiabatic exponent limits of the Riemann solutions to the isentropic Euler equations for power law with a Coulomb-like friction term. The formation of delta shock waves and vacuum states is identified and analyzed as the adiabatic exponent vanishes. Unlike the homogeneous case, the Riemann solutions are no longer self-similar. We rigorously justify that, as the adiabatic exponent vanishes, the Riemann solutions to the isentropic Euler equations for power law with a Coulomb-like friction term converge to the Riemann solutions to the zero pressure gas dynamics model with a body force. Moreover, we also give some numerical results to confirm the theoretical analysis.
Tensile strength prediction of orthogonal CFRP under high intensity CW laser irradiation
Authors: Wang Jiawei , Zhu Yongxiang , Wei Chenghua , Lv Yuwei , Ma Zhiliang , Wang Lijun , Feng Guobin
Published: October 2019

Considering the two most important factors, delamination and tensile strength temperature dependence, a tensile strength prediction model for orthogonal carbon fiber reinforced polymer (CFRP) under continuous wave (CW) laser irradiation is proposed. In the prediction model, delamination was judged by the thermal data recorded by a thermal imager. In order to eliminate the influence of heating rate on the tensile strength temperature dependence parameters, a two-sided laser irradiation method was proposed to test the tensile strength temperature dependence of CFRP. Furthermore, according to the temperature distribution in the thickness direction of the T700/E44 CFRP specimen and the tensile strength temperature dependence, the tensile strength for orthogonal CFRP under CW laser irradiation was calculated. The results show that the prediction model can reflect the decreasing process of tensile strength with laser irradiation, especially in the cases of high intensity laser irradiation and high tensile load. This research can make a reference for the tensile strength prediction of composite materials in high intensity CW laser irradiation and pre-tension loading conditions.
Terahertz absorption spectra of several polymer nanocomposites indicating polymer-filler interactions
Authors: Mori Keigo , Seki Tomofumi , Hirai Naoshi , Ohki Yoshimichi
Published: October 2019

Optical absorption spectra in a frequency range from 0.5 to 5.0 THz were measured in several epoxy resin nanocomposites with and without co-addition of micro-sized fillers, aiming at obtaining important information on intermolecular interactions between filler and polymer. As a result, significantly large absorption appears when both micro-sized MgO and nano-sized SiO2 fillers were added in epoxy resin. Similar but smaller absorption is also found in an epoxy resin composite with nano-sized TiO2 fillers.
Breakdown path and condition of air-insulated rod–plane gap with polymeric barrier inserted under alternating voltages
Authors: Zheng Yuesheng , Li Qiongqiong , Chen Yong , Shu Shengwen , Zhuang Chijie
Published: October 2019

In order to improve the insulating performance of air-insulated high voltage electrical apparatuses, solid barriers are always introduced in the interelectrode gaps. The breakdown paths and conditions of air-insulated rod-plane gaps in the range of 2–5 cm under alternating voltages were investigated for three different sizes of polyvinyl chloride barriers inserted at different gap positions. The breakdown processes were observed using two cameras placed in orthogonal directions, and two typical breakdown paths were captured. The statistical results showed that the occurrence probabilities of the two typical breakdown paths were related to the barrier position, but that the breakdown voltages were very similar in all breakdown events. Further, formulae to predict the breakdown voltage were deduced using a linear regression method. The results provide a reference for improving the insulation performance of gas–solid hybrid insulation systems based on the barrier effect as well as for modelling gas discharges in hybrid gaps.