bluuebunny/crossref_metadata_2025 huggingface dataset:
On-line chiral analysis using the kinetic method
Authors: Bain Ryan M. , Yan Xin , Raab Shannon A. , Ayrton Stephen T. , Flick Tawnya G. , Cooks R. Graham
Published: March 2016

Chiral analysis of constituents in solution-phase reaction mixtures can be performed by tandem mass spectrometry using the kinetic method to determine the enantiomeric excess (ee).
A novel DNA tetrahedron–hairpin probe for in situ “off–on” fluorescence imaging of intracellular telomerase activity
Authors: Feng Qiu-Mei , Zhu Meng-Jiao , Zhang Ting-Ting , Xu Jing-Juan , Chen Hong-Yuan
Published: March 2016

A DNA tetrahedron–hairpin probe with a high recovery efficiency is designed for in situ fluorescence imaging of intracellular telomerase activity.
A simple, fast and green nanofibers mat-based disk solid-phase extraction technique for chrysoidine analysis in soybean products
Authors: Qi Feifei , Li Xiaoqing , Liu Jingjing , Huang Kaiping , Rong Fei , Xu Qian
Published: March 2016

We proposed a simple and fast method for the determination of chrysoidine in soybean products.
Heavily doped Au25–xAgx(SC6H11)18− nanoclusters: silver goes from the core to the surface
Authors: Li Qi , Wang Shuxin , Kirschbaum Kristin , Lambright Kelly J. , Das Anindita , Jin Rongchao
Published: March 2016

The Au25(SR)18 nanocluster (where R = c-C6H11) can be heavily doped with silver through Ag(i)–thiolate complex induced size/structure transformation of Au23(SR)16− into Au25–xAgx(SR)18−.
A dynamical approach to non-adiabatic electron transfers at the bio-inorganic interface
Authors: Zanetti-Polzi Laura , Corni Stefano
Published: March 2016

A methodology is proposed to investigate the role of the energy fluctuations, determined by the dynamical evolution of a system, and the role of non-adiabaticity in affecting the kinetic rate of electron transfer reactions at the bio-inorganic interface.
Methane to methanol over copper mordenite: yield improvement through multiple cycles and different synthesis techniques
Authors: Bozbag Selmi E. , Alayon Evalyn Mae C. , Pecháček Jan , Nachtegaal Maarten , Ranocchiari Marco , van Bokhoven Jeroen A.
Published: March 2016

Successive cycles over Cu-mordenite for the conversion of methane to methanol provided higher yields.
Enhanced hydrogen storage properties of the 2LiBH4–MgH2composite with BaTiO3as an additive
Authors: Wang Jiasheng , Han Shumin , Wang Zhibin , Ke Dandan , Liu Jingjing , Ma Mingzhen
Published: March 2016

The 2LiBH4–MgH2+ 20 wt% BaTiO3composite was prepared by ball-milling LiBH4, MgH2and BaTiO3, and the effect of BaTiO3on the hydrogen storage properties of the composite was investigated.
Effect of Na3FeF6 catalyst on the hydrogen storage properties of MgH2
Authors: Sulaiman N. N. , Mustafa N. S. , Ismail M.
Published: March 2016

The MgH2 + 10 wt% Na3FeF6 composite resulted in both a reduced dehydrogenation temperature and enhanced sorption kinetics compared to the undoped MgH2 sample. The activation energy for the decomposition of the as-milled MgH2 was 167.0 kJ mol−1 and this value decreased to 75.0 kJ mol−1 after the addition of 10 wt% Na3FeF6 (a reduction by about 92.0 kJ mol−1).
Non-directed, carbonate-mediated C–H activation and aerobic C–H oxygenation with Cp*Ir catalysts
Authors: Kerr M. E. , Ahmed I. , Gunay A. , Venditto N. J. , Zhu F. , Ison E. A. , Emmert M. H.
Published: March 2016

Carbonate additives enhance the activity of [Cp*Ir(H2O)3](OTf)2 for non-directed C–H activations and the aerobic C–H oxygenation of alkyl arenes.
Merging of memory effect and anion intercalation: MnOx-decorated MgAl-LDO as a high-performance nano-adsorbent for the removal of methyl orange
Authors: Peng Hui Hua , Chen Jie , Jiang De Yi , Guo Xiao Long , Chen Hao , Zhang Yu Xin
Published: March 2016

MnOx-decorated MgAl layered double oxide was fabricated via merging of memory effect and anion intercalation. The as-prepared material exhibited high adsorption capacity for methyl orange with outstanding recycling performance.
A survey of indicator parameters to monitor regrowth in unchlorinated drinking water
Authors: van der Wielen Paul W. J. J. , Bakker Geo , Atsma Adrie , Lut Maarten , Roeselers Guus , de Graaf Bendert
Published: March 2016

The objective of our study was to explore microbiological parameters that are suitable as indicators for regrowth in distribution systems that receive unchlorinated drinking water in the Netherlands.
Routes to the preparation of mixed monolayers of fluorinated and hydrogenated alkanethiolates grafted on the surface of gold nanoparticles
Authors: Şologan Maria , Cantarutti Cristina , Bidoggia Silvia , Polizzi Stefano , Pengo Paolo , Pasquato Lucia
Published: March 2016

The use of binary blends of hydrogenated and fluorinated alkanethiolates represents an interesting approach to the construction of anisotropic hybrid organic–inorganic nanoparticles since the fluorinated and hydrogenated components are expected to self-sort on the nanoparticle surface because of their reciprocal phobicity. These mixed monolayers are therefore strongly non-ideal binary systems. The synthetic routes we explored to achieve mixed monolayer gold nanoparticles displaying hydrogenated and fluorinated ligands clearly show that the final monolayer composition is a non-linear function of the initial reaction mixture. Our data suggest that, under certain geometrical constraints, nucleation and growth of fluorinated domains could be the initial event in the formation of these mixed monolayers. The onset of domain formation depends on the structure of the fluorinated and hydrogenated species. The solubility of the mixed monolayer nanoparticles displayed a marked discontinuity as a function of the monolayer composition. When the fluorinated component content is small, the nanoparticle systems are fully soluble in chloroform, at intermediate content the nanoparticles become soluble in hexane and eventually they become soluble in fluorinated solvents only. The ranges of monolayer compositions in which the solubility transitions are observed depend on the nature of the thiols composing the monolayer.
High-flux ionic diodes, ionic transistors and ionic amplifiers based on external ion concentration polarization by an ion exchange membrane: a new scalable ionic circuit platform
Authors: Sun Gongchen , Senapati Satyajyoti , Chang Hsueh-Chia
Published: March 2016

A microfluidic ion exchange membrane hybrid ionic circuit chip is designed to achieve high-flux ionic diode, transistor and amplifier functionalities.
Furanodiene alters mitochondrial function in doxorubicin-resistant MCF-7 human breast cancer cells in an AMPK-dependent manner
Authors: Zhong Zhang-Feng , Tan Wen , Qiang William W. , Scofield Virginia L. , Tian Ke , Wang Chun-Ming , Qiang Wen-An , Wang Yi-Tao
Published: March 2016

Furanodiene is a bioactive sesquiterpene isolated from the spice-producingCurcuma wenyujinplant (Y. H. Chen and C. Ling) (C. wenyujin), which is a commonly prescribed herb used in clinical cancer therapy by modern practitioners of traditional Chinese medicine.
A mini review of designed mesoporous materials for energy-storage applications: from electric double-layer capacitors to hybrid supercapacitors
Authors: Lim Eunho , Jo Changshin , Lee Jinwoo
Published: March 2016

In recent years, porous materials have attracted significant attention in various research fields because of their structural merits.
Synthesis and absolute configuration assignment of albucidin: a late-stage reductive deiodination by visible light photocatalysis
Authors: Zhang Hu , Liu Peng-Fei , Chen Qiong , Wu Qiong-You , Seville Anne , Gu Yu-Cheng , Clough John , Zhou Shao-Lin , Yang Guang-Fu
Published: March 2016

The total synthesis and absolute configuration assignment of albucidin might pave the way for synthetic and medicinal chemists for further research on this type of bioactive molecule.
Studies on the interaction of 2-amino-3-hydroxy-anthraquinone with surfactant micelles reveal its nucleation in human MDA-MB-231 breast adinocarcinoma cells
Authors: Das Amit , Roy Sanjay , Mondal Palash , Datta Arup , Mahali Kalachand , Loganathan Gayathri , Dharumadurai Dhanasekaran , Sengupta Partha Sarathi , Akbarsha Mohammad A. , Guin Partha Sarathi
Published: March 2016

Structural, spectroscopic and biochemical studies on 2-amino-3-hydroxy-anthraquinone (AQ) were carried out.
Optically recoverable, deep ultraviolet (UV) stable and transparent sol–gel fluoro siloxane hybrid material for a UV LED encapsulant
Authors: Bae Jun-Young , Kim Hwea-Yoon , Lim Young-Woo , Kim Yoon-Hyeok , Bae Byeong-Soo
Published: March 2016

A UV transparent and stable fluoro-siloxane hybrid material was prepared for a deep UV-LED encapsulant. The hybrimer was fabricated by hydrosilylation reaction of vinyl-fluoro oligosiloxane resin.
Template-free assembling Ni nanoparticles to a 3D hierarchical structure for superior performance supercapacitors
Authors: Liu Xiangye , Dong Chenlong , Yuan Xiaotao , Wang Xin , Dong Wujie , Huang Fuqiang
Published: March 2016

Nanoflake arrays of Ni nanoparticles were assembled by template-free methods, including metal hydroxide arrays grown in situ on Ni foams and the following non-contact Al-reduction processes.
Sb doped Li4Ti5O12 hollow spheres with enhanced lithium storage capability
Authors: Li Fuyun , Zeng Min , Li Jing , Tong Xiaoling , Xu Hui
Published: March 2016

The Sb doped Li4Ti5O12 hollow spheres with an average diameter of around 3.5 μm were synthesized successfully via through a two-step process. Sb5+ doping can improve the capacity and maintain the cycling stability.
The study of the preparation and tribological behavior of TiAl matrix composites containing 1 wt% multi-walled carbon nanotubes
Authors: Yang Kang , Shi Xiaoliang , Zou Jialiang , Shen Qiao , Zhai Wenzheng , Huang Yuchun
Published: March 2016

TiAl matrix self-lubricating composites containing 1.0 wt% MWCNTs were evaluated on a ball-on-disk tribometer at 1.65, 4.15, 6.65, 9.15 and 11.65 N for sliding friction and wear behaviors.
Influence of clay-nanofiller geometry on the structure and properties of poly(lactic acid)/thermoplastic polyurethane nanocomposites
Authors: Kelnar I. , Kratochvíl J. , Fortelný I. , Kaprálková L. , Zhigunov A. , Nevoralová M. , Kotrisová M. , Khunová V.
Published: March 2016

The complex effect of platy and tubular nanofillers on the performance of a biodegradable multiphase polymer system is presented.
How does an amalgamated Ni cathode affect carbon nanotube growth? A density functional theory study
Authors: Dey Gangotri , Ren Jiawen , El-Ghazawi Tarek , Licht Stuart
Published: March 2016

This is a Density Functional Theory (DFT) study on the influence of an alloying mixture of Ni–Zn catalysts on carbon nanotube, CNT, growth.
Inactivation of immobilized trypsin under dissimilar conditions produces trypsin molecules with different structures
Authors: Sanchez Alfredo , Cruz Jenifer , Rueda Nazzoly , dos Santos Jose C. S. , Torres Rodrigo , Ortiz Claudia , Villalonga Reynaldo , Fernandez-Lafuente Roberto
Published: March 2016

Bovine trypsin immobilized on glyoxyl agarose and submitted to different inactivation conditions produce different conformations.
Catalytic oxidation of NO by O2 over CeO2–MnOx: SO2 poisoning mechanism
Authors: Lin Fawei , He Yong , Wang Zhihua , Ma Qiang , Whiddon Ronald , Zhu Yanqun , Liu Jianzhong
Published: March 2016

The catalytic oxidation of NO by O2 was performed over a series of CeO2–MnOx catalysts with different molar ratios of Mn/Ce, which were prepared by the sol–gel method.
Morphology-controlled synthesis of NiO films: the role of the precursor and the effect of the substrate nature on the films' structural/optical properties
Authors: Battiato Sergio , Giangregorio Maria M. , Catalano Maria R. , Lo Nigro Raffaella , Losurdo Maria , Malandrino Graziella
Published: March 2016

NiO thin films were grown through MOCVD on quartz and LaAlO3 (001) single crystal substrates. The relationship between the precursor/substrate nature and film properties allowed to define the best conditions to grow good quality NiO films.
First-principles design of a borocarbonitride-based anode for superior performance in sodium-ion batteries and capacitors
Authors: Banerjee Swastika , Neihsial Siamkhanthang , Pati Swapan K.
Published: March 2016

Three fundamental challenges for the development of technologically relevant sodium-ion batteries (SIB) and sodium-ion capacitors (SIC) are the lower cell voltage, decreased ionic-diffusivity and larger volume of sodium-ions relative to their lithium-ion analogues.
Anisamide-targeted gold nanoparticles for siRNA delivery in prostate cancer – synthesis, physicochemical characterisation and in vitro evaluation
Authors: Fitzgerald Kathleen A. , Rahme Kamil , Guo Jianfeng , Holmes Justin D. , O'Driscoll Caitriona M.
Published: March 2016

The surface of cationic gold nanoparticles was modified with the anisamide targeting ligand and successfully mediated siRNA uptake into prostate cancer cells via binding to the sigma receptor.
Inhibitor encapsulated, self-healable and cytocompatible chitosan multilayer coating on biodegradable Mg alloy: a pH-responsive design
Authors: Jia Zhaojun , Xiong Pan , Shi Yuying , Zhou Wenhao , Cheng Yan , Zheng Yufeng , Xi Tingfei , Wei Shicheng
Published: March 2016

Self-healable, pH-responsive coatings on biodegradable Mg–Ca alloy are prepared, which exhibit unique self-healing activity against biocorrosion and elicit good biocompatibility towards pre-osteoblastic MC3T3-E1 cells.
Effect of depth and soil moisture on buried ultra‐wideband antenna
Authors: Zemmour H. , Baudoin G. , Diet A.
Published: March 2016

Ultra‐wideband (UWB) wireless underground sensor networks consist of wirelessly connected underground sensor nodes that communicate through the soil. Performances of buried antennas and of the communication link depend on the soil dielectric characteristics. The effects of soil moisture and depth, in the frequency band of 3.1–10.6 GHz, on an UWB antenna return loss and bandwidth are presented. The measurements are conducted in two different types of soil: sandy soil and railway pebbles. The experimental results show that burying antenna shifts down its bandwidth. This phenomenon is accentuated by the increase of soil moisture and not impacted by the burial depth variations. In a dry sandy soil, the shift of the bandwidth low‐end is of 0.75 GHz, while it is 1 and 1.5 GHz at 5 and 20% soil moisture, respectively. This fact has allowed us to further miniaturise the used antenna.
Dead‐time optimisation for a phase‐shifted dc–dc full bridge converter with GaN HEMT
Authors: Joo D.M. , Lee B.K. , Kim J.S.
Published: March 2016

An accurate dead‐time adjustment method for phase‐shifted full bridge (PSFB) converter is presented. This method allows the dead‐time of converters to be optimised to meet zero voltage switching condition. The optimum dead‐time range can be predicted with high accuracy for any type of power semiconductor switch, including gallium nitride high‐electron‐mobility transistor, so that a practical design for a PSFB converter can be realised. The validity of the proposed dead‐time optimisation method was verified by experimental results with a 600 W prototype.
Single‐mode visible laser oscillation in Pr‐doped double‐clad structured waterproof fluoro‐aluminate glass fibre
Authors: Kajikawa S. , Terao T. , Yoshida M. , Motokoshi S. , Ishii O. , Yamazaki M. , Fujimoto Y.
Published: March 2016

A Pr‐doped double‐clad structured waterproof fluoride glass fibre (Pr:DC‐WPFGF) was successfully drawn, and the laser oscillation was demonstrated. The maximum output power was measured as 251.7 mW at 639.0 nm. The Pr:DC‐WPFGF was designed to be single‐mode fibre, with 0.08 of numerical aperture and 5.2 µm of core diameter. The beam‐quality factor, M2, was measured and evaluated to be 1.0.
Adaptive search range by neighbouring depth intensity weighted sum for HEVC texture coding
Authors: Lee T.‐K. , Chan Y.‐L. , Siu W.‐C.
Published: March 2016

High‐efficiency video coding (HEVC) outperforms H.264/AVC by providing a bitrate reduction of about 50% while having almost the same perceptual quality. It adopts more flexible partitioning in motion estimation (ME) which gains higher coding efficiency at a cost of increased coding complexity. Depth maps in the emerging multi‐view plus depth videos are exploited to adjust the search range in ME for HEVC complexity reduction. With the aid of depth intensity variations among neighbouring blocks, the proposed algorithm derives weights to the neighbouring blocks and establishes an adaptive search range according to the weighted sum of the motion vectors from the neighbouring blocks. Compared with the fast test zone (TZS) search in HEVC, the proposed algorithm saves 65% coding time in ME on average with insignificant rate‐distortion degradation.
Bit error rate degradation model for time‐delay parameter of co‐channel interference occurring in human body communication
Authors: Hwang Jung‐Hwan , Kang Tae‐Wook , Hyoung Chang‐Hee , Park Seong‐Ook
Published: March 2016

Human body communication (HBC) is a new technology for mobile and wearable devices operating over body area networks. In HBC, the body is used as a medium for transmitting data between devices to replace wired and wireless technologies. This study examines the bit error rate (BER) degradation experienced by HBC systems under the presence of co‐channel interference. A degradation model is proposed to estimate the change in BER, and a selective simulation method is proposed to obtain the BER performance with a small exceedance probability and a small number of BER samples.
Interference management in macro‐femtocell and micro‐femtocell cluster‐based long‐term evaluation‐advanced green mobile network
Authors: Mukherjee Anwesha , De Debashis , Deb Priti
Published: March 2016

This study presents a frequency allocation strategy for macro‐femtocell and micro‐femtocell cluster‐based long‐term evaluation‐advanced network. In the proposed approach the network is divided into a number of clusters. Each cluster contains a macrocell or a number of microcells. Femtocells are deployed within a macrocell or a microcell. In the proposed strategy fractional frequency reuse is used. Each macrocell and microcell is divided into three regions. Different frequency sets are allocated for macrocell and femtocells in a macro‐femtocell cluster. Similarly in a micro‐femtocell cluster, different frequency sets are provided to a microcell and the femtocells contained in that microcell. For each region inside a macrocell or a microcell, the allotted frequency band is different from the adjacent region. The path loss model for the macro‐femtocell and micro‐femtocell cluster‐based network is developed in this study. The signal‐to‐interference‐plus‐noise ratio and spectral efficiency are determined. The simulation results show that using the proposed strategy signal‐to‐interference‐plus‐noise ratio can be increased to ∼62–92%. Simulation results present that macro‐femtocell and micro‐femtocell cluster‐based network reduces the power transmission to ∼48% than that of a macro‐femtocell network. Hence it is referred as a green mobile network.
Voronoi tessellation‐based regionalised segmentation for colour texture image
Authors: Zhao Quanhua , Wang Yu , Li Yu
Published: March 2016

This study presents a region‐based algorithm for segmenting colour texture image, which uses Voronoi tessellation for partitioning the domain of the image and Markov random field (MRF) for modelling colour texture. In detail, (i) an image domain is divided into polygons (or sub‐regions) by Voronoi tessellation; (ii) two MRF models, improved Potts model and multivariate Gaussian MRF model, are used to characterise colour texture structures inter‐ and intra‐polygons, respectively; (iii) by Bayesian paradigm, a posterior distribution which characterises the segmentation and model parameters conditional on a given colour image can be obtained up to a normalising constant; (iv) a Markov chain Monte Carlo algorithm is developed to simulate from the posterior distribution; finally, (v) a maximum a posteriori scheme is employed to find an optimal segmentation and model parameters. In order to evaluate the proposed colour texture segmentation algorithm, two kinds of colour texture images are tested, including synthetic and real colour texture images. The accuracy assessments are performed qualitatively on all kinds of images and quantitatively on synthetic images. All results demonstrate that the proposed algorithm is efficiently.
Improved relative coupling control structure for multi‐motor speed synchronous driving system
Authors: Shi Tingna , Liu Hao , Geng Qiang , Xia Changliang
Published: March 2016

This paper presents an improved relative coupling control structure for multi‐motor speed synchronous driving system. Unlike the traditional relative coupling control structure, the proposed structure introduces an additional speed controller so that all the motors in the system can be treated as an entity. It also takes the importance of each motor's speed into consideration in the speed feedback process and the speed synchronous compensation. Meanwhile, the speed synchronisation and tracking performance of the multi‐motor system can be decoupled (i.e. independently adjusted) and regulated by changing synchronous coefficient and tracking coefficient, respectively, and the performance of the multi‐motor system can be obviously promoted. To evaluate the performance of the system comprehensively, this study proposes an assessment method based on synchronisation and tracking errors of the system, moreover, a comparison between the traditional structure and the proposed structure is analysed. Finally, the simulation and experimental results are carried out under triple‐permanent magnet synchronous motor system, which can verify the feasibility and the effectiveness of the proposed method.
Method for fabricating polymethylmethacrylate micro‐nanotube arrays based on spin‐coating method and PAA templates
Authors: Kang Wei‐min , Jia Zhi‐xia , Liu Hao , Cheng Bo‐wen
Published: March 2016

A novel and low‐cost method for fabricating poly(methyl methacrylate) micronanotube arrays (PMMA‐MNAs) using a porous anodic aluminium (PAA) template and spin‐coating method was presented. PMMA‐MNAs with different length micronanotubes were fabricated by changing the temperature of electric heating drying oven and heating time, then characterised by field‐emission scanning electron microscope. Experimental results showed that the poly(methyl methacrylate) (PMMA) liquid membrane was obtained by means of spin coating at the spin velocity of 4000 r/min, and can further grow into PMMA‐MNAs using an all‐through‐pore PAA film as template at a certain temperature. The length of PMMA‐MNAs increased nonlinearly with the increasing of the oven temperature and trended to a stable value (about 6.51 μm) at 150°C for 1.5 h. Flexible PMMA‐MNAs with characteristics of hollow structure will have wide application prospects in catalyst carrier, high precise sensor, drug sustained release and so on. The presented experimental results could facilitate understanding the growth mechanism of polymer nanotube arrays.
Fünf minuten für die IT
Authors: Mau Jens
Published: March 2016

Mit neuer IT wollen Krankenhäuser ihre Abläufe schneller und nachhaltiger machen. Doch wie groß der Wertbeitrag der IT wirklich ist, kann kaum jemand sagen. Eine Onlineumfrage mit dem Namen “Wahrgenommener Wertbeitrag von IT in Krankenhäusern” soll jetzt ein bisschen Licht ins Dunkel bringen.
Wenn die Lichter ausgehen
Authors: Thalmayr Maria
Published: March 2016

Verbandsnachrichten der FKT - Fachvereinigung Krankenhaustechnik (e. V.). Diese Seiten sind nur als PDF-Dokument verfügbar.
Von Dr. House lernen
Authors: Ehrhardt Jana
Published: March 2016

Beeinflussen Arztserien im Fernsehen die Angst der Patienten vor und die Zufriedenheit mit Operationen? Sogar sehr – das fanden der Chirurg Kai Witzel und der ehemalige Programmdirektor der ARD, Günter Struve, in einer gemeinsamen Studie heraus.
Systemüberwindende Reform
Authors: Gerster Florian
Published: March 2016

Alle Beteiligten im Gesundheitswesen warten auf den großen Wurf des Gesundheitsministers Philipp Rösler hin zu einem marktwirtschaftlichen Gesundheitssystem auf Grundlage der Bürgerpauschale. Die staunende Öffentlichkeit kann im täglichen koalitionären Kleinkrieg auch beobachten, wie der ehemalige Bundesgesundheitsminister Horst Seehofer den Amtsinhaber Philipp Rösler quält. So ist scheinbar der Status quo die beste aller gesundheitspolitischen Welten; vor allem sozial gerecht. Damit macht sich kurioserweise die CSU zum Erbwalter der sozialdemokratischen Gesundheitsministerin Ulla Schmidt. So viel „S“ im Namen der bayerischen C-Partei war nie.
Ein eheähnliches Verhältnis
Authors: Zehnder Adalbert
Published: March 2016

Die Beziehungen zwischen Krankenhäusern und ihren Zulieferern aus Handel, Dienstleistung und Industrie verändern sich. Aus bloßen Lieferanten werden Systempartner, die nicht mehr nur einfach verkaufen, sondern auch beraten, Leistungspakete anbieten und oft sogar in die finanzielle Verantwortung gehen.
Operation am offenen Herzen
Authors: Zehnder Adalbert
Published: March 2016

Sanierung und Umbau bei laufendem Betrieb: Für Krankenhäuser ist dies eine Horrorvorstellung. An der Uniklinik Köln gab es dazu aber keine Alternative. Mehr als zehn Jahre lang arbeiten deshalb im Bettenhochhaus Ärzte und Pflegekräfte, Handwerker und Bauarbeiter parallel unter einem Dach. Ein Baustellenbesuch zur Halbzeit.
Immer mit der Ruhe
Authors: Ehrhardt Jana
Published: March 2016

Die Fachgesellschaften wollen mit einer neuen Weiterbildungsordnung auf die Entwicklungen in der Medizin und in der Krankenhauslandschaft reagieren. Der Ärztetag 2010 wies jedoch alle Änderungsanträge bis auf einen ab. Nun wird es noch mehrere Jahre dauern, bis sich etwas tut.
Protest gegen Entmachtung der Pflege
Authors: Gaede Kirsten
Published: March 2016

Sie haben den Überblick, sie kennen und lenken zunehmend die Prozesse: Pflegekräfte gewinnen im Krankenhaus an Bedeutung.
Der Dreiklang als Lösung
Authors: Zehnder Adalbert
Published: March 2016

Der Bund will die Belastungen der Krankenhäuser durch gestiegene Personalkosten infolge der Tarifabschlüsse zumindest teilweise kompensieren. Allerdings soll diese einmalige Finanzspritze von 300 Millionen Euro mit Bedingungen verknüpft sein.
Antwort auf den Investitionsstau
Authors: Mau Jens
Published: March 2016

Kliniken finanzieren ihre medizintechnischen Geräte derzeit überwiegend durch Kauf, Miete oder Leasing – die Industrie möchte gerne sogenannte Technologiepartner­schaften etablieren. Reformstau und immer kürzere Innovationszyklen helfen dabei.
Dolmetscher für die Ärzte
Authors: Dirks Claudia
Published: March 2016

Das Unfallkrankenhaus Berlin hat Ende April sein eigenes „Forscherhaus” eingeweiht. Haus Nr. 49, denkmalgeschützt und restauriert, steht nun ganz der klinischen Forschung zur Verfügung. Es ist eine einzigartige Einrichtung in nicht-universitärer Landschaft.
Für dumm verkauft
Authors: Gaede Kirsten
Published: March 2016

Es kracht in deutschen Kliniken: Klinikmanager üben mit knallharten Finanzvorgaben Druck aus. Chefärzte fordern fairere Umgangsformen.
Stoppt das Seilziehen
Authors: Murzin Gunter
Published: March 2016

Dualismus kann innovativ, aber ebenso kontraproduktiv wirken. Führungsteams, die dies verstanden haben, bündeln ihre unterschiedlichen Fachkenntnisse und -ziele zu einem zielgerichteten Aktionsbündel.
Kabale und Hiebe
Authors: Gaede Kirsten
Published: March 2016

Die Geschäftsführung des Klinikums München ist komplett, das Eigenkapital um 200 Millionen Euro aufgestockt. Kann nun endlich die konkrete Sanierung und Restrukturierung beginnen? Zweifel sind angebracht: Das Klinikum scheint weiterhin Spielball der Politik zu sein.
Fresenius und Rhön mit sattem Kursplus
Authors: Schmidt Hartmut
Published: March 2016

Die Anleger sind guter Dinge: Die Gewinne der Unternehmen sprudeln, und Geld ist billig. Der Dax schloss seit langer Zeit erstmals wieder über der 8.000-Punkte-Marke. Erfreulich entwickeln sich auch die Aktien der Klinik- und Pflegeheimbetreiber, allen voran die von Fresenius.
Uniklinik Bonn spart 12 Millionen Euro
Authors: Gaede Kirsten
Published: March 2016

Bei Sammelbestellungen denken Einkäufer in den Kliniken vor allem an Massenware wie Spritzen, Tupfer und Medikamente.
„Krankenkassen scheuen die gut begründete Wette auf die Zukunft”
Authors: Mühlnikel Ingrid
Published: March 2016

Rolf Stuppardt ist einer, der es wissen muss: Kassen und Leistungserbringer pflegen keinen guten Umgang miteinander – auch das ist ein Grund für die häufigen Interventionen des Gesetzgebers im Gesundheitswesen, glaubt der ehemalige Vorstandsvorsitzende des IKK-Bundesverbands. Seine Reformideen für das System: Strikte Fristenlösungen und Check­listen bei multimorbiden Fällen.
Als Autopilot untauglich
Authors: Geisendorf Nicklas
Published: March 2016

Michael Möllmann ist Chefarzt für Anästhesiologie am St. Frankziskus-Hospital Münster. Er sagt, dass Software Unterstützung ist, aber keine Stand-alone-Lösung sein darf, wenn es um Patientensicherheit geht. Das Klinikum nutzt das vorhandene System, das sich hausintern um selbst programmierte Komponenten erweitern lässt.
Intensiv mit Technik flankiert
Authors: Geisendorf Nicklas
Published: March 2016

Walter Schaffartzik ist Direktor der Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie am Unfallkrankenhaus Berlin. Die dortige Intensivstation arbeitet seit rund zwei Jahren erfolgreich IT-unterstützt.
Vorbereitet auf Europa
Authors: Dirks Claudia
Published: March 2016

Die Novellierung der EU-Richtlinie, die auch die Aufbereitung von Medizinprodukten regeln soll, lässt weiter auf sich warten. Der Spezialaufbereiter Vanguard wartet nicht mehr. Er hat sich als Hersteller zertifizieren lassen, eigene Maschinen entwickelt und seine Prozesse restrukturiert: Aufbereitung auf Herstellerniveau.
Neues aus der Zukunftswerkstatt
Authors: König Romy
Published: March 2016

In Leipzig arbeiten Mediziner, Techniker und Hersteller am OP-Saal von morgen: 2011 feierte das „Surgical Deck“ Premiere, seither wird es stetig weiter erprobt und evaluiert. Eine interne Auswertung liefert nun erste Hinweise auf die Praxistauglichkeit.
Rhön beflügelt die Fantasie der Aktionäre
Authors: Schmidt Hartmut
Published: March 2016

Während die Anleger über die künftige Geldpolitik grübeln, freuen sich die Aktionäre des Rhön-Klinikums. Die Gründe: Es keimen Hoffnungen, dass Fresenius einen erneuten Übernahmeversuch unternehmen wird, außerdem entfacht das Programm „Impuls“ neue Ertragsfantasien.
Nachwuchssorgen in einem wichtigen Berufsstand
Authors: Dirks Claudia
Published: March 2016

Wenn der Berufsverband Medizinischer Informatiker e.V. im Juli sein 30-jähriges Jubiläum begeht, dann geschieht das unter schwierigeren Vorzeichen, als es sich so manch einer noch vor zehn Jahren gedacht hätte.
Deutsche Rentenversicherung spielt Django
Authors: Hiltensperger Monika
Published: March 2016

Scheinselbstständigkeit – dieser Verdacht lehrt Kliniken das Zittern. Doch sie können die Kontrollzüge der DRV Bund kräftig parieren: Es gibt viele Argumente, die für eine Freiberuflichkeit von Honorarkräften sprechen.
Unerotisch, aber heiß umworben
Authors: Zehnder Adalbert
Published: March 2016

In einem europaweit einzigartigen Studiengang werden an der Technischen Hochschule Mittelhessen in Gießen technische Krankenhausmanager ausgebildet und ab kommendem Jahr sogar Krankenhausplaner. Die Absolventen gehen weg wie warme Semmeln.
Unternehmerblut für Vivantes
Authors: Mau Jens
Published: March 2016

2005 wechselte Andrea Grebe aus der zweiten Führungsebene des Berliner Krankenhauskonzerns Vivantes nach Ludwigsburg, wo sie Geschäftsführerin eines großen Klinikverbunds wurde. Vor einem halben Jahr heuerte die Unternehmertochter nun wieder bei Vivantes an – als Geschäftsführerin Klinikmanagement.
Zerstrittener Vorstand macht weiter
Authors: Müller Hermann
Published: March 2016

In einer denkwürdigen Sitzung ist die zerstrittene KBV-Spitze zwar in ihren Ämtern bestätigt worden. Doch tiefe Gräben zwischen Haus- und Fachärzten, persönliche Animositäten und gravierende Missstände prägen die Situation innerhalb der Körperschaft.
Geiz ist teuer
Authors: Bublitz Thomas
Published: March 2016

Die Menschen werden älter und müssen immer länger arbeiten. Ihre Gesunderhaltung durch Rehabilitation ist alternativlos. Die Politik sollte deshalb einen unkomplizierten Zugang zur Reha schaffen, auch um Pflegebedürftigkeit hinauszuzögern – meint Thomas Bublitz vom BDPK.
„Die Zeit ist reif für Private Equity”
Authors: Gaede Kirsten
Published: March 2016

Ausländische Investoren schielen auf den deutschen Klinikmarkt – so raunt es seit Jahren immer wieder einmal durch die Branche. Doch was ist dran an dem Gerücht? kma sprach mit jemandem, der es ernst meint: dem Geschäftsführer des Londoner Private Equity-Unternehmens Bridgepoint.
Traumhimmel überm Tomografen
Authors: Kucera Martin
Published: March 2016

Kunstlicht, Apparate, Enge: In Diagnostikräumen ist die Angst von Patienten am größten. Und Angst beeinträchtigt die Heilungsgeschwindigkeit. Ein „Healing Environment” zu schaffen, kann hier eine Lösung sein. Krankenhäuser, Großgerätehersteller und Architekten arbeiten daran.
Krankenpflegehelfer de luxe
Authors: Kucera Martin , Gaede Kirsten
Published: March 2016

Als Relikt aus dem vergangenen Jahrhundert gilt vielen die Krankenpflegehelfer-Ausbildung – aber nicht in Baden-Württemberg: Die Uniklinik Tübingen verlängert sie und wertet sie auf – um vor allem Hauptschulabgänger fachlich und charakterlich besser auf die Anforderungen einer Uniklinik vorzubereiten.
Spahn geißelt Verhalten der Bundesländer
Authors: Mau Jens
Published: March 2016

Jens Spahn (CDU) und Karl Lauterbach (SPD) haben im Koalitionsvertrag detailliert den Fahrplan für die Gesundheitspolitik formuliert – nun arbeitet Schwarz-Rot die Punkte ab. Im kma-Interview erklärt Jens Spahn, was auf Kliniken zukommt – und macht seinem Ärger über die Bundesländer Luft.
Der Koloss wächst weiter
Authors: Mau Jens
Published: March 2016

„Gehst du auf die Medica?” Der Satz ist in den zurückliegenden Wochen wohl tausendfach gefallen – und zwar nicht nur auf Deutsch, sondern auch auf Chinesisch, Thailändisch, Portugiesisch, Französisch und natürlich Englisch.
Systematic Review and Meta-analysis of En Bloc Vertebrectomy Compared with Intralesional Resection for Giant Cell Tumors of the Mobile Spine
Authors: Luksanapruksa Panya , Buchowski Jacob M. , Singhatanadgige Weerasak , Bumpass David B.
Published: March 2016

Study Design

Systematic review and meta-analysis.

Objective

To compare the recurrence and perioperative complication rate of en bloc vertebrectomy (EV) and intralesional resection (IR) in the giant cell tumor of the mobile spine (SGCT).

Methods

We systematically searched publications in the PubMed and Embase databases for reports of SGCTs, excluding the sacrum. Two reviewers independently assessed all publications. A meta-analysis was performed using local recurrence and postoperative complications as the primary outcomes of interest.

Results

There were four articles reporting recurrence and two articles reporting postoperative complications. All included articles were case series. In all, 91 patients were included; 49 were treated with IR and 42 were treated with EV. Local recurrence rates were 36.7 and 9.5% in the IR and EV groups, respectively. Rates of postoperative complications were 36.4% with IR and 11.1% with EV. Overall, patients treated with EV not only had a lower recurrence rate (relative risk [RR] 0.22; 95% confidence interval [CI] 0.09 to 0.52) but also had a lower postoperative complication rate (RR 0.34; 95% CI 0.07 to 1.52) compared with IR.

Conclusions

Based on the limited data obtained from systematic review, SGCT patients treated with EV had a lower recurrence rate and fewer postoperative complications than those treated with IR.
The absence of a dense potential core in supercritical injection: A thermal break-up mechanism
Authors: Banuti Daniel T. , Hannemann Klaus
Published: March 2016

Certain experiments in quasi-isobaric supercritical injection remain unexplained by the current state of theory: Without developing a constant value potential core as expected from the mechanical view of break-up, density is observed to drop immediately upon entering the chamber. Furthermore, this phenomenon has never been captured in computational fluid dynamics (CFD) despite having become a de facto standard case for real fluid CFD validation. In this paper, we present strong evidence for a thermal jet disintegration mechanism (in addition to classical mechanical break-up) which resolves both the theoretical and the computational discrepancies. A new interpretation of supercritical jet disintegration is introduced, based on pseudo-boiling, a nonlinear supercritical transition from gas-like to liquid-like states. We show that thermal disintegration may dominate classical mechanical break-up when heat transfer takes place in the injector and when the fluid state is sufficiently close to the pseudo-boiling point. A procedure which allows to capture subsided cores with standard CFD is provided and demonstrated.
Perspective: Highly ordered MoS2 thin films grown by multi-step chemical vapor deposition process
Authors: Heo S. N. , Ishiguro Y. , Hayakawa R. , Chikyow T. , Wakayama Y.
Published: March 2016

We established a process for growing highly ordered MoS2 thin films. The process consists of four steps: MoO3 thermal evaporation, first annealing, sulfurization, and second annealing. The main feature of this process is that thermally deposited MoO3 thin films are employed as a precursor for the MoS2 films. The first deposition step enabled us to achieve precise control of the resulting thickness of the MoS2 films with high uniformity. The crystalline structures, surface morphologies, and chemical states at each step were characterized by X-ray diffraction, atomic force microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. Based on these characterizations and a careful optimization of the growth conditions, we successfully produced a highly oriented MoS2 thin film with a thickness of five monolayers over an entire one-centimeter-square sapphire substrate.
Magnetic stripe domains of [Pt/Co/Cu]10 multilayer near spin reorientation transition
Authors: Sun L. , Liang J. H. , Xiao X. , Zhou C. , Chen G. , Huo Y. , Wu Y. Z.
Published: March 2016

The dependence of magnetic anisotropy, magnetic domain patterns and magnetization reversal processes in [Pt/Co(tCo)/Cu]10 film stack epitaxied on Cu (111) substrate have been studied as a function of the Co layer thickness tCo, by magneto-optic polar Kerr magnetometry and microscopy. We find the film undergoes spin reorientation transition from out-of-plane to in-plane as tCo increases. The SRT thickness is verified by Rotating-field Magneto-Optic Kerr effect method. The film exhibits the stripe domain structures at remanence with the width decreasing while tCo approaches SRT. As demonstrated by the first order reversal curve measurement, the magnetization reversal process encompasses irreversible domain nucleation, domain annihilation at large field and reversible domain switching near remanence.
Electrical-field and spin-transfer torque effects in CoFeB/MgO-based perpendicular magnetic tunnel junction
Authors: Yoshida Chikako , Noshiro Hideyuki , Yamazaki Yuichi , Sugii Toshihiro , Furuya Atsushi , Ataka Tadashi , Tanaka Tomohiro , Uehara Yuji
Published: March 2016

The electric-field (E) dependence of the magnetoresistance (RH) loops for top-pinned perpendicular CoFeB/MgO-based magnetic tunnel junctions (MTJs) in the presence of a spin-transfer torque (STT)-current was measured. The E effects were distinguished from the STT-current effects using a micromagnetic simulation. The coercive field (Hc) decreased and the RH loop shifted as both the positive and negative bias E increased owing to the STT current. Furthermore, E-assisted switching for an MTJ with a diameter of 20 nm, which exhibited a nearly coherent magnetization reversal, was demonstrated using micromagnetic simulation.
Magnetostrictive GMR spin valves with composite FeGa/FeCo free layers
Authors: Liu Luping , Zhan Qingfeng , Yang Huali , Li Huihui , Zhang Shuanglan , Liu Yiwei , Wang Baomin , Tan Xiaohua , Li Run-Wei
Published: March 2016

We have fabricated strain-sensitive spin valves on flexible substrates by utilizing the large magnetostrictive FeGa alloy to promote the strain sensitivity and the composite free layer of FeGa/FeCo to avoid the drastic reduction of giant magnetoresistance (GMR) ratio. This kind of spin valve (SV-FeGa/FeCo) displays a MR ratio about 5.9%, which is comparable to that of the conventional spin valve (SV-FeCo) with a single FeCo free layer. Different from the previously reported works on magnetostrictive spin valves, the SV-FeGa/FeCo displays an asymmetric strain dependent GMR behavior. Upon increasing the lateral strain, the MR ratio for the ascending branch decreases more quickly than that for the descending branch, which is ascribed to the formation of a spiraling spin structure around the FeGa/FeCo interface under the combined influences of both magnetic field and mechanical strain. A strain sensitivity of GF = 7.2 was achieved at a magnetic bias field of -30 Oe in flexible SV-FeGa/FeCo, which is significantly larger than that of SV-FeCo.
Propagation-based phase-contrast tomography for high-resolution lung imaging with laboratory sources
Authors: Krenkel Martin , Töpperwien Mareike , Dullin Christian , Alves Frauke , Salditt Tim
Published: March 2016

We have performed high-resolution phase-contrast tomography on whole mice with a laboratory setup. Enabled by a high-brilliance liquid-metal-jet source, we show the feasibility of propagation-based phase contrast in local tomography even in the presence of strongly absorbing surrounding tissue as it is the case in small animal imaging of the lung. We demonstrate the technique by reconstructions of the mouse lung for two different fields of view, covering the whole organ, and a zoom to the local finer structure of terminal airways and alveoli. With a resolution of a few micrometers and the wide availability of the technique, studies of larger biological samples at the cellular level become possible.
Scattering characteristics of cylindrical metamaterials
Authors: Hwang Ruey-Bing , Huang Hsien-Tung
Published: March 2016

This paper reports the scattering of electromagnetic plane wave by annular metamaterials composed of concentric regular dielectric layers of infinite length. Interestingly, in certain frequency ranges, their scattering properties are similar to those of a perfect electric conductor cylinder, except that the tangential electric field on their surfaces does not vanish. Moreover, the frequency bands of total reflection spectra can be rigorously predicted using Floquet–Bloch theorem.
Effect of Si addition on AC and DC magnetic properties of (Fe-P)-Si alloy
Authors: Gautam Ravi , Prabhu D. , Chandrasekaran V. , Gopalan R. , Sundararajan G.
Published: March 2016

We report a new (Fe-P)-Si based alloy with relatively high induction (1.8-1.9 T), low coercivity (< 80 A/m), high resistivity (∼38 μΩ cm) and low core loss (217 W/kg @ 1 T/1 kHz) comparable to the commercially available M530-50 A5 Si-steel. The attractive magnetic and electrical properties are attributed to i) the two phase microstructure of fine nano precipitates of Fe3P dispersed in α-Fe matrix achieved by a two-step heat-treatment process and ii) Si addition enhancing the resistivity of the α-Fe matrix phase. As the alloy processing is by conventional wrought metallurgy method, it has the potential for large scale production.
The efforts to re-establish the Chinese water deer population in Shanghai, China
Authors: Chen Min , Liu Chaofei , He Xin , Pei Enle , Yuan Xiao , Zhang Endi
Published: March 2016

Chinese water deer (Hydropotes inermis) was endangered in China and vanished from Shanghai early in the 20th century. The deer was reintroduced from 2006 onward, so as to re-establish a wild population in Shanghai. We obtained the deer from the breeding stock and released them. The deer numbers increased from 21 in 2007 to 299 in 2013. There has been a total area of 30.62 km2 of free-range deer release from 2010 and this will be enlarged in the future.
Physiological and growth parameters of fattening lambs after shearing under heat-stress conditions
Authors: Moslemipur F. , Golzar-Adabi S.
Published: March 2016

Shearing is a common practice for lamb hygiene and health, which can also influence the animal survival and productivity in stressful environments. This study was conducted to investigate the effects of shearing on performance and some metabolic and physiological parameters of fattening lambs exposed to ambient heat stress. Thirty -two male Dalagh fattening lambs (32.4 ± 5.7 kg), 3.5 ± 0.5 months of age, were selected from a herd existing at the research station of the University of Gonbad Kavoos (temperate mild-latitude zone of Iran). Lambs were divided into two groups, maintained individually and fed with a mixture of alfalfa hay and concentrate with free access to drinking water. One group was completely shorn while the other group was left unshorn, and both groups were reared for 10 weeks (July–Sept.) with mean ambient temperature of 29.3°C. Feed intake and liveweight changes were recorded weekly whereas metabolic parameters were measured daily. Fasting blood samples were collected three times a week and used for blood metabolites and hormone assays. Results showed that shearing has no effects on feed intake and weight gain over the study. Feed conversion ratio was improved (P < 0.05) by shearing (10.70 vs 13.26 kg/kg). Shearing also caused a decline in lamb rectal temperature (P < 0.05), whereas heart rate remained unchanged. Respiratory rate was lower in shorn lambs (P < 0.001), whereas blood glucose, urea and total protein levels were not affected. Serum concentrations of thyroxine declined in shorn lambs compared with unshorn lambs (P < 0.05), but cortisol level was unchanged between groups. In conclusion, the study showed that when lambs are kept sheltered under heat stress conditions, shearing appears to induce energy retention via reducing some vital activities such as respiration and heat loss leading to enhanced feed efficiency. The decrease in thyroxine level can be considered as the possible underlying mechanism for the decline observed in rectal temperature.
Effect of volume of urine and mass of faeces on N2O and CH4 emissions of dairy-cow excreta in a tropical pasture
Authors: Cardoso Abmael da Silva , Alves Bruno José Rodrigues , Urquiaga Segundo , Boddey Robert Michael
Published: March 2016

We aimed to quantify nitrous oxide (N2O) and methane (CH4) emissions as a function of the addition of different quantities of bovine faeces and urine on soil under pasture. Two experiments were performed in randomised complete blocks with five replicates. In the first experiment, the emissions of CH4 and N2O were evaluated for 14 days after the addition of four amounts of faeces (0.0, 1.2, 1.8 and 2.4 kg of fresh faeces per plot), and in a second experiment, N2O emissions were evaluated for 43 days after addition of four volumes of urine (0.0, 1.0, 1.5 and 2.0 L). Urine and faeces came from crossbred (Fresian × Gir) dairy cows fed on pasture and concentrates. N2O emissions from faeces did not alter the emission factor (EF) according to the faeces weight (P = 0.73). N2O-N EF from faeces-N averaged 0.18% (±0.05) of total applied N. The volume of urine applied influenced N2O losses. The EF decreased linearly (P = 0.015) with increasing volumes of urine, being 4.9% (±0.75), 3.36% (±0.7) and 2.43% (±0.46) of N applied emitted as N2O for the 1.0, 1.5 and 2.0 L volumes of urine respectively. The EF from urine was significantly (P < 0.0001) higher than the EF from faeces. There was no change to the CH4 emissions per kilogram of excreta when the amount of faeces added was varied (P = 0.87). However, the CH4 emitted increased linearly with the amount of faeces (P = 0.02). The CH4 EF was estimated to be 0.95 (±0.38) kg/head.year.