bluuebunny/crossref_metadata_2025_split huggingface dataset:
A 1DVAR‐based snowfall rate retrieval algorithm for passive microwave radiometers
Authors: Meng Huan , Dong Jun , Ferraro Ralph , Yan Banghua , Zhao Limin , Kongoli Cezar , Wang Nai‐Yu , Zavodsky Bradley 
Published: June 2017

AbstractSnowfall rate retrieval from spaceborne passive microwave (PMW) radiometers has gained momentum in recent years. PMW can be so utilized because of its ability to sense in‐cloud precipitation. A physically based, overland snowfall rate (SFR) algorithm has been developed using measurements from the Advanced Microwave Sounding Unit‐A/Microwave Humidity Sounder sensor pair and the Advanced Technology Microwave Sounder. Currently, these instruments are aboard five polar‐orbiting satellites, namely, NOAA‐18, NOAA‐19, Metop‐A, Metop‐B, and Suomi‐NPP. The SFR algorithm relies on a separate snowfall detection algorithm that is composed of a satellite‐based statistical model and a set of numerical weather prediction model‐based filters. There are four components in the SFR algorithm itself: cloud properties retrieval, computation of ice particle terminal velocity, ice water content adjustment, and the determination of snowfall rate. The retrieval of cloud properties is the foundation of the algorithm and is accomplished using a one‐dimensional variational (1DVAR) model. An existing model is adopted to derive ice particle terminal velocity. Since no measurement of cloud ice distribution is available when SFR is retrieved in near real time, such distribution is implicitly assumed by deriving an empirical function that adjusts retrieved SFR toward radar snowfall estimates. Finally, SFR is determined numerically from a complex integral. The algorithm has been validated against both radar and ground observations of snowfall events from the contiguous United States with satisfactory results. Currently, the SFR product is operationally generated at the National Oceanic and Atmospheric Administration and can be obtained from that organization.
Geospace system responses to the St. Patrick's Day storms in 2013 and 2015
Authors: Zhang Shun‐Rong , Zhang Yongliang , Wang Wenbin , Verkhoglyadova Olga P. 
Published: June 2017

AbstractThis special collection includes 31 research papers investigating geospace system responses to the geomagnetic storms during the St. Patrick's Days of 17 March 2013 and 2015. It covers observation, data assimilation, and modeling aspects of the storm time phenomena and their associated physical processes. The ionosphere and thermosphere as well as their coupling to the magnetosphere are clearly the main subject areas addressed. This collection provides a comprehensive picture of the geospace response to these two major storms. We provide some highlights of these studies in six specific areas: (1) global and magnetosphere/plasmasphere perspectives, (2) high‐latitude responses, (3) subauroral and midlatitude processes, (4) effects of prompt penetration electric fields and disturbance dynamo electric fields, (5) effects of neutral dynamics and perturbation, and (6) storm effects on plasma bubbles and irregularities. We also discuss areas of future challenges and the ways to move forward in advancing our understanding of the geospace storm time behavior and space weather effects.
Diketopyrrolopyrrole‐Based Semiconducting Polymer with Both Hydrophobic Alkyl and Hydrophilic Tetraethylene Glycol Chains for Monolayer Transistor and Sensing Application
Authors: Yang Si‐Fen , Zhang Xiao , Chen Peng‐Lei , Liu Zi‐Tong , Tian Jian‐Wu , Zhang Guan‐Xin , Zhang De‐Qing 
Published: June 2017

AbstractFunctional field‐effect transistors (FETs) have received increasing attention in recent years. Herein, it is demonstrated that the incorporation of hydrophilic tetraethylene glycol (TEEG) chains into the diketopyrrolopyrrole (DPP)‐based semiconducting polymer (PDPP3T1) can facilitate the formation of polymeric monolayer at the air–water interface, and the resulting field‐effect transistors (FETs) show sensitive and selective response toward alcohol vapor. By using the Langmuir–Schaefer method, monolayer and ultrathin films from bilayer to five‐layer can be successfully prepared. Interestingly, nanopores with sizes of 50–100 nm are formed within the monolayer film, as observed by using atomic force microscopy. The monolayer FET exhibits relatively high hole mobilities up to 0.014 cm2 V−1 s−1, which is among the highest charge mobilities reported for ultrathin film FETs prepared with the Langmuir technique. Moreover, hole mobility increases with an increase in the thickness of the ultrathin film from monolayer to three‐layer, and it reaches 0.04 cm2 V−1 s−1 for three‐layer FETs. A variation of both on‐current and off‐current is detected for monolayer FET upon exposure to alcohol vapor. The monolayer FET displays ultrahigh sensitivity (down to 1 ppb) and good selectivity toward alcohol vapors, in particular ethanol vapor. This can be attributed to the synergetic effects of the hydrophilic TEEG chains in PDPP3T1 and the nanopores within the monolayers.
Matrix form of Biconjugate Residual Algorithm to Solve the Discrete‐Time Periodic Sylvester Matrix Equations
Authors: Hajarian Masoud 
Published: June 2017

AbstractThere are important relationships between the discrete‐time linear periodic descriptor systems and the discrete‐time periodic matrix equations. In the present paper, we introduce the matrix form of the biconjugate residual (BCR) algorithm for solving the discrete‐time periodic Sylvester matrix equations AiXiBi+CiXi+1Di=Ei,i=1,2,.... It is shown that the introduced algorithm converges to the solutions within a finite number of iterations in the absence of round‐off errors. Finally, three numerical examples are given to demonstrate the efficiency and the performance of the algorithm.
Experimentelle Ermittlung der Desorptionsisothermen von Porenbeton unterschiedlicher Dichte mit der Standardmethode SSS und mit der DVS‐Technik
Authors: Garbalińska Halina , Bochenek Magdalena 
Published: June 2017

AbstractIn dem Artikel wird die Bewertung von zwei Untersuchungsmethoden zur Ermittlung der Desorptionsisothermen – der Standardmethode SSS (Saturated Salt Solution) sowie der DVS‐Technik (Dynamic Vapor Sorption) – vorgestellt. Das Problem der Kompatibilität beider Methoden wird am Beispiel von Porenbeton der folgenden vier Rohdichteklassen getestet: 400, 500, 600, 700 kg/m3. Die erzielten Ergebnisse aus beiden Methoden zeichnen sich durch hohe Konformität bei allen getesteten Porenbetonsorten bei relativen Luftfeuchtigkeiten von 0 bis 75 % aus. Bei hohen Feuchtigkeitswerten zwischen 75–85 % und 98 % wurde ein deutlicher Unterschied im Verlauf der Desorptionsisothermen festgestellt, die mit den beiden Methoden ermittelt wurden, insbesondere bei den höheren Dichteklassen.
Auswertung von Raumklimamessungen und Bestimmung typischer Taupunkttemperaturen in natürlich belüfteten Wohnzimmern
Authors: Hofmann Markus , Geyer Christoph , Kornadt Oliver 
Published: June 2017

AbstractFür viele bauhysikalische Simulationen und Nachweise wird als wesentliche Eingangsgröße das Raumklima benötigt. Besonders detaillierte Angaben sind für instationäre Berechnungen erforderlich. Literaturangaben über die jahreszeitliche Entwicklung des Raumklimas sind meist recht allgemein gehalten und unterscheiden nicht nach Klimaregion, Belegungsprofil oder Raumnutzung. Ausgewertet wurden Raumklimamessungen aus zwölf Wohnzimmern eines Jahres. Aus den Messwerten werden außentemperatur‐ und zeitabhängige Ausgleichsfunktionen für die Raumlufttemperatur, die Raumluftfeuchte und die Taupunkttemperatur abgeleitet. Während des Messzeitraumes waren die Wohnzimmer schadensfrei und wiesen unterschiedliche Belegungsprofile auf. Aus den Messergebnissen wird ein Raumklimamodell für Wohnzimmer abgeleitet, womit auch eine Überprüfung und Bewertung von Simulationsergebnissen hinsichtlich des Tauwasserrisikos an der Wandoberfläche fensterbelüfteter Wohnzimmer möglich wird.
Integrative Verhandlungen fördern – ein experimenteller Ansatz zur Nutzung farbiger Beleuchtung in Verhandlungssituationen
Authors: Kombeiz Olga , Steidle Anna 
Published: June 2017

AbstractDas Verhandlungsgeschick der Mitarbeiter trägt in vielen Organisationen wesentlich zum Unternehmenserfolg bei. Gleichzeit weist aktuelle Forschung daraufhin, dass zwischenmenschliches Verhalten zum Beispiel in Verhandlungen durch die physikalische Umgebung beeinflusst werden kann. Die vorliegende Studie untersuchte die Bedeutung des farbigen Lichts für kooperatives Verhalten in integrativen Verhandlungen. Die Autoren nahmen an, dass rotes Licht eine angenehme, sozialfreundliche Raumatmosphäre schafft und somit den Verhandlungserfolg fördert. In einer experimentellen Studie wurde die Lichtfarbe (rot vs. blau und weiß) variiert. Die Ergebnisse bestätigten die Annahme. Der theoretische Wert, Limitationen sowie praktische Implikationen der Befunde werden diskutiert.
Klimagenerator CLIG zur Gebäude‐ und Bauteilsimulation
Authors: Häupl Peter , Hansel Frank 
Published: June 2017

AbstractDer Klimagenerator CLIG ist ein Dienstprogramm zur Erzeugung von Klimadateien (Temperatur, relative Luftfeuchtigkeit, Globalstrahlung, kurzwellige Direktstrahlung auf beliebige Bauteilflächen, kurzwellige Diffusstrahlung auf beliebige Bauteilflächen, Bedeckungsgrad, langwellige Strahlungsbilanz, Niederschlag, Windgeschwindigkeit, Windrichtung, Schlagregenbelastung beliebiger Vertikalflächen) auf Stundenbasis für alle Raumklimasimulationsprogramme und zur Berechnung des hygrothermischen Verhaltens von Außenbauwerksteilen. Zwei Beispiele werden gegeben.
A case of severe unprovoked hemorrhage in an elderly male: a case report
Authors: Ioannou Petros , Tsagkaraki Emmanouela , Tsioutis Constantinos , Devetzoglou Maria , Xylouri Irene , Gikas Achilleas , Panagiotakis Symeon 
Published: June 2017

Key Clinical MessageAcquired hemophilia is a rare but potentially fatal clinical condition requiring clinical suspicion to reach to a diagnosis, especially in elder patients. This diagnosis should be suspected in patients that present with unexplained persistent bleeding from skin, soft tissues, and mucosa and have a prolonged aPTT.
Gibbs Measures on Mutually Interacting Brownian Paths under Singularities
Authors: Mukherjee Chiranjib 
Published: June 2017

AbstractWe are interested in the analysis of Gibbs measures defined on two independent Brownian paths in ℝd interacting through a mutual self‐attraction. This is expressed by the Hamiltonian with two probability measures μ and ν representing the occupation measures of two independent Brownian motions. We will be interested in a class of potentials V that are singular, e.g., Dirac‐ or Coulomb‐type interactions in ℝ3, or the correlation function of the parabolic Anderson problem with white noise potential.The mutual interaction of the Brownian paths inspires a compactification of the quotient space of orbits of product measures, which is structurally different from the self‐interacting case introduced in [27], owing to the lack of shift‐invariant structure in the mutual interaction. We prove a strong large‐deviation principle for the product measures of two Brownian occupation measures in such a compactification and derive asymptotic path behavior under Gibbs measures on Wiener paths arising from mutually attracting singular interactions. For the spatially smoothened parabolic Anderson model with white noise potential, our analysis allows a direct computation of the annealed Lyapunov exponents, and a strict ordering of them implies the intermittency effect present in the smoothened model. © 2017 Wiley Periodicals, Inc.
Effect of transcervical arterial ligation on the severity of postoperative hemorrhage after transoral robotic surgery
Authors: Kubik Mark , Mandal Rajarsi , Albergotti William , Duvvuri Umamaheswar , Ferris Robert L. , Kim Seungwon 
Published: June 2017

ABSTRACTBackgroundThe value of transcervical arterial ligation during transoral robotic surgery (TORS) as a measure to decrease postoperative bleeding incidence or severity is unclear.MethodsA retrospective single institution study was performed to identify risk factors for hemorrhage after TORS for oropharyngeal squamous cell carcinoma (SCC).ResultsOverall, 13.2% of patients (35/265) experience postoperative hemorrhage. T classification, perioperative use of anticoagulants, surgeon experience >50 cases, and tumor subsite were not predictors of postoperative hemorrhage. Of this cohort, 28% underwent prophylactic arterial ligation. The overall incidence of bleeding was not significantly decreased in patients who underwent arterial ligation (12.1% vs 13.6%; p = .84). However, arterial ligation significantly reduced the incidence of major and severe bleeding events (1.3% vs 7.8%; p = .04). Radiation before TORS was a risk factor for major and severe postoperative hemorrhage (p < .02).ConclusionTranscervical arterial ligation during TORS may reduce the severity of postoperative hemorrhagic events. © 2017 Wiley Periodicals, Inc. Head Neck 39: 1510–1515, 2017
Strength, toughness, and reliability of a porous glass/biopolymer composite scaffold
Authors: Fu Qiang , Jia Weitao , Lau Grace Y. , Tomsia Antoni P. 
Published: June 2017

AbstractDevelopment of bioactive glass and ceramic scaffolds intended for the reconstruction of large segmental bone defects remains a challenge for materials science due to the complexities involved in clinical implantation, bone–implant reaction, implant degradation and the multiple loading modes the implants subjected to. A comprehensive evaluation of the mechanical properties of inorganic scaffolds and exploration of new ways to toughen brittle constructs are critical prior to their successful application in loaded sites. A simple and widely adopted approach involves the coating of an inorganic scaffold with a polymeric material. In this work, a systematic evaluation of the influence of a biopolymer, polycaprolactone (PCL), coating on the mechanical performance of bioactive glass scaffolds was carried out. Results from this work indicate that a biopolymer PCL coating was more effective in increasing the compressive strength and reliability of the glass scaffold under compression, but less effective in improving its flexural strength or fracture toughness. This is the first report that reveals the limited successfulness of a polymer coating in improving the toughness of strong scaffolds, suggesting that new and novel ways of toughening inorganic scaffolds should be future research directions for scaffolds applied in loaded sites. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1209–1217, 2018.
LncRNA LINC01512 Promotes the Progression and Enhances Oncogenic Ability of Lung Adenocarcinoma
Authors: Chen Jie , Zhang Fan , Wang Junjun , Hu Lijuan , Chen Jian , Xu Gang , Wang Yumin 
Published: June 2017

ABSTRACTPreviously, a significantly upregulated lncRNA, LINC01512, in lung adenocarcinoma (LAD) was obtained, while its biological function and molecular mechanisms were unclear. The expression level of LINC01512 was estimated by qPCR from 100 pairs of LAD and NT samples. The correlation of LINC01512 to clinical data of LAD patients was analyzed. LINC01512 was knocked down and overexpressed in SPCA‐1 and A549 cell lines by lentivirus‐mediated technology, and the oncological behavioral changes of SPCA‐1 and A549 cells were observed, as well as, tumorigenicity in experimental nude mice. Compared to the adjacent tissues, LINC01512 was obviously upregulated in LAD. The expression level of LINC01512 was closely related to lymph node metastasis and tumor node metastasis (TNM) stage. Survival analysis showed that the survival time of high expression LINC01512 group was significantly shorter than the low‐expression group in LAD. Knockdown or overexpression test unanimously confirmed that LINC01512 can increase the ability of cell migration, invasion, proliferation, colony formation, adhesion, and S phase and G2/M phase cells, whereas decrease the apoptosis and G0/G1 phase cells. Nude mice experiments confirmed that LINC01512 significantly enhanced the speed and weight of tumorigenicity. LINC01512 is an oncogenic lncRNA gene that promotes the progression and distinctly enhances the oncogenic ability in lung adenocarcinoma. J. Cell. Biochem. 118: 3102–3110, 2017. © 2017 The Authors. Journal of Cellular Biochemistry Published by Wiley Periodicals Inc.
Chemiedozententagung 2017
Authors: Langer Robert 
Published: June 2017

AbstractDie jährliche Chemiedozententagung, bei der Nachwuchswissenschaftler ihre eigenständige Forschung der deutschen Chemie‐Wissenschaftselite präsentieren, fand dieses Jahr Mitte März an der Universität Marburg statt. Die 400 Teilnehmer konnten auf der dreitägigen Veranstaltung 99 angemeldete Vorträge in drei parallel verlaufenden Vortragsreihen hören. Eine Besonderheit dieses Jahr: Erstmals hatten auch Postdoktoranden die Möglichkeit, ihre wissenschaftlichen Ergebnisse zu präsentieren. Im Zusammenhang mit dieser Neuerung steht auch die einzige negative Meldung dieser Tagung: Einer deutsch‐iranischen Postdoktorandin vom Massachusetts Institute of Technology wurde abgeraten, zum jetzigen Zeitpunkt aus den Vereinigten Staaten auszureisen – es galt als wahrscheinlich, dass ihr die Wiedereinreise verweigert würde [Nachr. Chem. 2017, 65, 460].
An Osteometric Study on the Variation in Orientation of the Lesser Trochanter in an Early Medieval Human Skeletal Assemblage and Comparison with an Individual from the Late Upper Palaeolithic
Authors: Flohr S. , Rieger A. , Orschiedt J. , Kierdorf H. , Kierdorf U. 
Published: June 2017

AbstractAnatomical textbooks describe the lesser trochanter in contemporary humans as being oriented posteromedially. In contrast, orientation of the lesser trochanter towards posterior was observed in some human femora from the Upper Palaeolithic, including the femur of a young adult individual from Germany (Irlich 1), radiocarbon dated to 12 500–11 200 bp (calibrated AMS age). The present study analysed the orientation of the lesser trochanter in femora originating from an early medieval skeletal assemblage (Greding, Germany) and compared the results with those for the Irlich 1 femur. Eleven landmarks, four on the proximal femur, four on the mid‐shaft and three on the distal femur, were recorded with a MicroScribe® digitizer and analysed using AutoCAD® 2010 software. Seven angles and five distances were measured. In the Greding femora, significant differences (p < 0.05) between sexes were found for several linear measurements, while no significant sex‐related differences existed for angular measurements. For some angular variables related to the orientation of the lesser trochanter, the values for the Irlich 1 femur lay outside the range of variation of the Greding specimens, reflecting the more posterior orientation of the lesser trochanter in the Irlich 1 femur. This posterior orientation of the lesser trochanter was not associated with a particularly low degree of femoral anteversion. It is hypothesised that the differences in orientation of the lesser trochanter between the Irlich 1 femur (and other femora of Upper Palaeolithic individuals) and the femora from Greding could basically reflect differences in traction exercised by the iliopsoas muscle during infancy and childhood between the sedentary agricultural population from Greding and Upper Palaeolithic hunter‐gatherers with a mobile lifestyle. Copyright © 2017 John Wiley & Sons, Ltd.
The effect of illumination on the depth profile of thermally annealed MEH‐PPV/dPS blends
Authors: Morgan Brian , Dadmun Mark D. 
Published: June 2017

ABSTRACTDue to its simplicity and cost‐effectiveness, single solution casting of organic optoelectronics has grown in popularity for device fabrication to produce technologies such as organic photovoltaics and thin film transistors. In order to explore the structural evolution that occurs in the film formation of a blend composed of polystyrene and the benchmark conjugated polymer MEH‐PPV, we have performed a series of neutron reflectivity experiments focused on studying the film structure as it changes through the thermal annealing process both in the presence and absence of white light. Results indicate the formation of a nonhomogeneous blend upon casting, which becomes stratified with thermal annealing. More importantly, the extent of stratification varies with illumination, where exposure to white light increases stratification. This data suggests in situ illumination is a potential novel tool to manipulate device‐relevant morphologies of optoelectronic active layers throughout the fabrication process, offering a cheap nondestructive tool to effectively tune desired structural parameters. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2017, 55, 1142–1149
First‐Principles Calculation of Phase/Size Characteristic in Yb3+/Tm3+/ZnO Upconversion Nanoparticles through Metal Ga3+ Doping
Authors: Li Yuemei , Li Yongmei , Wang Rui , Xu Yanling , Zheng Wei , Liu Zhihua 
Published: June 2017

AbstractThe crystal size of upconversion nanoparticles (UCNPs) can be effectively controlled by doping metal ions, which remarkably enhances upconversion luminescence (UCL) intensity and pure color turning. This study investigates phase and size properties of Yb3+/Tm3+/ZnO with various concentrations of Ga3+. In Yb3+/Tm3+/ZnO UCL system, Ga3+‐doping controls the structure (nanocrystal size/phase) of UCNPs and the resulting effect of UCL fluorescence properties. The first principles calculations is used to study variety of the band structure state of density and electronic density of ZnO with different Ga3+ ions. Consequently, it is found that such a series of Yb3+/Tm3+/ZnO nanoparticles doped with x mol% Ga3+ (x= 0, 1, 2, 3 mol%) can increase the electron charge density and decrease the size of nanoparticles, thereby exhibiting greatly enhancement of UC intensity.
Carbonyl Directed Regioselective Hydration of Alkynes under Ag‐Catalysis
Authors: Santhi Jampani , Baire Beeraiah 
Published: June 2017

AbstractA mild strategy for highly regioselective hydration of the alkynes (internal and terminal) has been developed employing intramolecular ketone as the directing group under Ag(I) catalysis. In this process both internal and terminal alkynes exhibited 100 % complementary reactivity i. e. 6‐endo‐dig vs. 5‐exo‐dig respectively, and provided two regio‐isomeric dicarbonyl products as exclusive products. This process found very broad scope for the ketones and alkynes. The 1,5‐diketones were efficiently transformed in to synthetically and pharmaceutically important naphthalene derivatives employing an intramolecular Aldol condensation.
[3+3] Cycloaddition of in Situ Formed Azaoxyallyl Cations with Nitrones: Synthesis of 1,2,4‐Oxadiazinan‐5‐one Derivatives
Authors: Xuan Jun , Cheng Xiao , Cao Xia 
Published: June 2017

AbstractA [3+3] cycloaddition reaction of the in situ generated azaoxyallyl cations with nitrones under mild reaction conditions is presented. The reaction provides an efficient method to various biologically important 1,2,4‐oxadiazinan‐5‐one derivatives in good to high yields. More importantly, the method can be further expanded to modify some natural aldehydes and drug molecules. The broad substrate scope, mild reaction conditions, and the importance of the corresponding heterocyclic products render this approach attractive and valuable.