bluuebunny/crossref_metadata_2025_split huggingface dataset:
A low‐complexity scheme for enlarging the dynamic range of the open‐loop I‐FOG
Authors: Xie Jun , Yang Chuanchuan , Wang Qin , Wang Xinyue , Wang Ziyu 
Published: January 2016

ABSTRACTBoth the dynamic range and the sensitivity are very important parameters of the interferometric fiber‐optic gyroscopes (I‐FOGs), and generally the large dynamic range and the high sensitivity are contradictory in the open‐loop I‐FOGs. In this article, an efficient and easy to be implemented signal processing scheme is proposed for enlarging the dynamic range of the open‐loop I‐FOGs without reducing the sensitivity. A prototype was developed to verify the feasibility of the new scheme and compare its performance with the conventional open‐loop I‐FOGs. Experimental results show that, compared with the conventional open‐loop I‐FOG with the same fiber coil and optical devices, the dynamic range of the open‐loop I‐FOG with the aid of the new signal processing scheme is enlarged to ±360 (°/s) exceeding the single value area ±63 (°/s) of the conventional open‐loop I‐FOG obviously and the bias drift reduces from 0.068°/h to 0.046°/h. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:498–502, 2016
Sectored annular ring microstrip antenna with DGS for circular polarization
Authors: Singh Anil Kumar , Gangwar Ravi Kumar , Kanaujia Binod Kumar 
Published: January 2016

ABSTRACTA novel and simple design of circularly polarized sectored annular ring microstrip antenna with coplanar and concentric circular microstrip antenna is presented. The proposed antenna has single microstrip line feed with defected ground structure. Simulation analysis has been carried out using Ansoft High Frequency Structure Simulator (HFSSTM) software and measurement is carried out using the AgilentTM Vector Network Analyser (N5230A:PNA‐L). Parametric analysis of return loss and axial ratio versus frequency for different physical parameter of antenna has been studied. Experimental results of the proposed antenna show the 34.61% impedance bandwidth and 8.08% axial ratio bandwidth at 2.6 GHz center frequency with 6.96 dB peak gain. Simulated results are in good agreement with measured results. Due to low profile and simple geometry, it can be applicable for S‐band application effectively as wireless LAN, Wi‐Fi, Bluetooth, Zig‐Bee, and radio frequency identification antennas. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:569–573, 2016
Triple‐band oscillator with two shunt fourth‐order LC resonators
Authors: Jang Sheng‐Lyang , Huang Li‐Yu , Hsue Ching‐Wen 
Published: January 2016

ABSTRACTThis letter presents a triple‐band (TB) oscillator using two 4th order LC resonator to form a 6th order resonator. The TB cross‐coupled oscillator two pairs of back‐to‐back varactors for band switching and it has been implemented with CMOS devices in the TSMC 0.18μm SiGe 3P6M BiCMOS technology. The core power consumption of the high (middle, low)‐band core oscillator are 2.25(2.33, 2.58) mA and 1.8(1.86, 2.06) mW, respectively at the dc drain‐source bias of 0.8V. The oscillator can generate differential signals in the frequency range of 8.44–8.71GHz, 6.74–6.86GHz, and 4.22–4.47 GHz. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:580–583, 2016
An implantable antenna designed for ease of manufacturing
Authors: Rodriguez Miguel , Furse Cynthia M. 
Published: January 2016

ABSTRACTThis article describes an improved method of manufacturing PIFA antennas for medical implants, and associated design considerations. The antenna is manufactured “upside down,” by molding the silicone superstrate first, placing the radiating element against it, and then pouring epoxy into the mold to form the substrate. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:619–623, 2016
A dual notched band MIMO slot antenna system with Y‐shaped defected ground structure for UWB applications
Authors: Zhu Jianfeng , Feng Botao , Peng Biao , Deng Li , Li Shufang 
Published: January 2016

ABSTRACTIn this letter, a compact ultrawideband polarization diversity MIMO antenna system with dual band‐notched characteristics is proposed. The proposed antenna element consists of a metal ground with a stepped slot etched on it. The stepped slot is fed by a 50‐Ω microstrip line on the top layer. Dual notched bands (5G WLAN and 8G X band) are achieved by etching an open ended slot and a split ring resonator in the ground plane, respectively. Two identical antenna elements are arranged orthogonally and fed perpendicularly to obtain polarization diversity and enhance port isolation. A simple Y‐shaped defected ground structure is etched in the ground plane to suppress mutual coupling between two antennas and improve the impedance matching. Diversity performance in term of envelop correlation coefficient (ECC) and mean effective gain (MEG) are studied. The simulated and measured results show good agreement, which demonstrates that the proposed MIMO antenna system can be a good candidate for UWB MIMO system applications. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:626–630, 2016
Shorting posts loaded patch coupler with enhanced bandwidth and extended coupling coefficient range
Authors: Xu Bo Wei , Pu Xing Yu , Zheng Shao Yong , Long Yun Liang 
Published: January 2016

ABSTRACTThis article presents a thorough investigation of the use of shorting posts to widen the bandwidth and coupling coefficient range of a patch quadrature coupler. The lumped equivalent circuit is used to analyze the characteristics of two proposed shorting posts loaded patch configurations. It is shown that by loading shorting post on the center of a patch, the bandwidth of coupler with loose coupling can be significantly improved. The patch configuration with four shoring posts is also proposed to provide a loose coupling coefficient up to 15 dB, which cannot be achieved using the conventional configuration. For demonstration purposes, two quadrature couplers were designed to exhibit 10 and 15 dB coupling coefficients with bandwidths of 29% and 19.2%, respectively. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:683–688, 2016
Miniaturized low loss 60 GHz CMOS mixed coupled BPF with patterned ground shield
Authors: Barakat Adel , Hanif Muhammad , Pokharel Ramesh K. 
Published: January 2016

ABSTRACTThis letter presents a miniaturized low loss mixed coupled on‐chip band‐pass filter using overlapped open loop ring resonators and using patterned ground shields. The fabricated prototype shows an insertion loss of 3.7 dB, a return loss > 20 dB, a bandwidth of 13 GHz, and a chip size of 700 μm × 450 μm. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:697–699, 2016
Pluripotency and differentiation of cells from human testicular sperm extraction: An investigation of cell stemness
Authors: Sadeghian‐Nodoushan Fatemeh , Aflatoonian Reza , Borzouie Zahra , Akyash Fatemeh , Fesahat Farzaneh , Soleimani Mehrdad , Aghajanpour Samaneh , Moore Harry D. , Aflatoonian Behrouz 
Published: January 2016

SUMMARYHuman male germ‐line stem cells (hmGSCs) and human testis‐derived embryonic stem cell‐like (htESC‐like) cells are claimed to be in vitro pluripotent counterparts of spermatogonial stem cells (SSCs), but the origin and pluripotency of human testis‐derived cell cultures are still under debate. The aim of this study was to generate putative pluripotent stem cells in vitro from human testicular sperm‐extracted (TESE) samples of infertile men, and to assess their pluripotency and capacity to differentiate. TESE samples were minced, enzymatically disaggregated and dispersed into single‐cell or cluster suspensions, and then cultured. Initially, cell clusters resembled those described for hmGSCs and htESC‐like cells, and were positive for markers such as OCT4/POU5F1, NANOG, and TRA‐2‐54. Prolonged propagation of cell clusters expressing pluripotency markers did not thrive; instead, the cells that emerged possessed characteristics of mesenchymal stromal cells (MSCs) such as STRO‐1, CD105/EGLN1, CD13/ANPEP, SOX9, vimentin, and fibronectin. KIT, SOX2, and CD44 were not expressed by these MSCs. The multipotential differentiation capacity of these cells was confirmed using Oil Red‐O and Alizarin Red staining after induction with specific culture conditions. It is therefore concluded that pluripotent stem cells could not be derived using the conditions previously reported to be successful for TESE samples. Mol. Reprod. Dev. 83: 312–323, 2016. © 2016 Wiley Periodicals, Inc.
Downfield‐NOE‐suppressed amide‐CEST‐MRI at 7 Tesla provides a unique contrast in human glioblastoma
Authors: Zaiss Moritz , Windschuh Johannes , Goerke Steffen , Paech Daniel , Meissner Jan‐Eric , Burth Sina , Kickingereder Philipp , Wick Wolfgang , Bendszus Martin , Schlemmer Heinz‐Peter , Ladd Mark E. , Bachert Peter , Radbruch Alexander 
Published: January 2016

PurposeThe chemical exchange saturation transfer (CEST) effect observed in brain tissue in vivo at the frequency offset 3.5 ppm downfield of water was assigned to amide protons of the protein backbone. Obeying a base‐catalyzed exchange process such an amide‐CEST effect would correlate with intracellular pH and protein concentration, correlations that are highly interesting for cancer diagnosis. However, recent experiments suggested that, besides the known aliphatic relayed‐nuclear Overhauser effect (rNOE) upfield of water, an additional downfield rNOE is apparent in vivo resonating as well around +3.5 ppm. In this study, we present further evidence for the underlying downfield‐rNOE signal, and we propose a first method that suppresses the downfield‐rNOE contribution to the amide‐CEST contrast. Thus, an isolated amide‐CEST effect depending mainly on amide proton concentration and pH is generated.MethodsThe isolation of the exchange mediated amide proton effect was investigated in protein model‐solutions and tissue lysates and successfully applied to in vivo CEST images of 11 glioblastoma patients.ResultsComparison with gadolinium contrast enhancing longitudinal relaxation time–weighted images revealed that the downfield‐rNOE‐suppressed amide‐CEST contrast forms a unique contrast that delineates tumor regions and show remarkable overlap with the gadolinium contrast enhancement.ConclusionThus, suppression of the downfield rNOE contribution might be the important step to yield the amide proton CEST contrast originally aimed at. Magn Reson Med 77:196–208, 2017. © 2016 Wiley Periodicals, Inc.
On the Krylov subspace methods based on tensor format for positive definite Sylvester tensor equations
Authors: Ali Beik Fatemeh Panjeh , Movahed Farid Saberi , Ahmadi‐Asl Salman 
Published: January 2016

SummaryThis paper deals with studying some of well‐known iterative methods in their tensor forms to solve a Sylvester tensor equation. More precisely, the tensor form of the Arnoldi process and full orthogonalization method are derived by using a product between two tensors. Then tensor forms of the conjugate gradient and nested conjugate gradient algorithms are also presented. Rough estimation of the required number of operations for the tensor form of the Arnoldi process is obtained, which reveals the advantage of handling the algorithms based on tensor format over their classical forms in general. Some numerical experiments are examined, which confirm the feasibility and applicability of the proposed algorithms in practice. Copyright © 2016 John Wiley & Sons, Ltd.
Temperature dependence of GaN MOS capacitor characteristics
Authors: Guo Zhibo , Tang Ke , Chow T. Paul 
Published: January 2016

AbstractGaN MOS capacitors on both as‐grown and dry/wet‐etched GaN surfaces are characterized by C‐V and G‐ω measurements at elevated temperatures. The nature of GaN/SiO2 interface traps are determined in detail by extracting interface trap density, surface potential fluctuation, trap time constant and capture cross‐section. When temperature increases, trap time constant decreases so that more traps become active and contribute to observed higher interface trap density, especially for traps at deeper energy levels. The deeper trap levels activated at higher temperatures also induce corresponding temperature‐dependent surface potential fluctuation variations. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Matrin3: connecting gene expression with the nuclear matrix
Authors: Coelho Miguel B. , Attig Jan , Ule Jernej , Smith Christopher W.J. 
Published: January 2016

As indicated by its name, Matrin3 was discovered as a component of the nuclear matrix, an insoluble fibrogranular network that structurally organizes the nucleus. Matrin3 possesses both DNA‐ and RNA‐binding domains and, consistent with this, has been shown to function at a number of stages in the life cycle of messenger RNAs. These numerous activities indicate that Matrin3, and indeed the nuclear matrix, do not just provide a structural framework for nuclear activities but also play direct functional roles in these activities. Here, we review the structure, functions, and molecular interactions of Matrin3 and of Matrin3‐related proteins, and the pathologies that can arise upon mutation of Matrin3. WIREs RNA 2016, 7:303–315. doi: 10.1002/wrna.1336This article is categorized under:

RNA Interactions with Proteins and Other Molecules > Protein–RNA Interactions: Functional Implications
RNA Processing > Splicing Regulation/Alternative Splicing
RNA in Disease and Development > RNA in Disease
Using integral projection models to compare population dynamics of four closely related species
Authors: Schwartz Lauren M. , Gibson David J. , Young Bryan G. 
Published: January 2016

AbstractDemographic processes, such as survival, growth, and reproduction, can inform us about invasion risk, extinction risk, and trade‐offs in life history strategies. The population dynamics of four Amaranthaceae species in southern Illinois, USA were examined using integral projection models (IPMs) to determine whether vital rates reflect life history among these closely related species. Two of the species, Amaranthus palmeri and Amaranthus tuberculatus, are summer annuals and considered to be some of the most problematic agricultural weeds in the US Midwest. Achyranthes japonica is a relatively new invasive exotic species that primarily inhabits forests. Iresine rhizomatosa, is an endangered species in the study area, which also inhabits forests. Two populations of each species were studied from 2012 to 2014 in which height of individuals were measured and used as the state variable in the IPMs. The Amaranthus species and Achyranthes japonica had an estimated population growth rate >1, projecting increases in population size. By contrast, λ was <1 for I. rhizomatosa, projecting a decline in population size demonstrating its endangered status. Germination rates and seed viability were dependent on species and varied over time. Elasticity analyses showed that survival and growth contributed most to λ for the perennial species; whereas, for the annual species population dynamics were driven primarily by fecundity. Overall, Achyranthes japonica and the Amaranthus species show similar trends in demographic processes that align with their invasive nature and not with their life histories. Furthermore, this study demonstrates that more research on the competitive nature of Achyranthes japonica is needed.
Construction and evaluation of a novel bifunctional phenylalanine–formate dehydrogenase fusion protein for bienzyme system with cofactor regeneration
Authors: Jiang Wei , Fang Bai-Shan 
Published: January 2016

AbstractPhenylalanine dehydrogenase (PheDH) plays an important role in enzymatic synthesis of l-phenylalanine for aspartame (sweetener) and detection of phenylketonuria (PKU), suggesting that it is important to obtain a PheDH with excellent characteristics. Gene fusion of PheDH and formate dehydrogenase (FDH) was constructed to form bifunctional multi-enzymes for bioconversion of l-phenylalanine coupled with coenzyme regeneration. Comparing with the PheDH monomer from Microbacterium sp., the bifunctional PheDH–FDH showed noteworthy stability under weakly acidic and alkaline conditions (pH 6.5–9.0). The bifunctional enzyme can produce 153.9 mM l-phenylalanine with remarkable performance of enantiomers choice by enzymatic conversion with high molecular conversion rate (99.87 %) in catalyzing phenylpyruvic acid to l-phenylalanine being 1.50-fold higher than that of the separate expression system. The results indicated the potential application of the PheDH and PheDH–FDH with coenzyme regeneration for phenylpyruvic acid analysis and l-phenylalanine biosynthesis in medical diagnosis and pharmaceutical field.
The ups and downs of visual orientation: The effects of diagonal orientation on product judgment
Authors: Schlosser Ann E. , Rikhi Ruchi R. , Dagogo‐Jack Sokiente W. 
Published: January 2016

AbstractOrienting a logo upward or downward may seem like an arbitrary graphic design decision, but we propose that it can have important implications for consumer judgments. In particular, we find across four experimental studies and a content analysis that diagonal direction can convey different levels of activity with upward—or ascending—diagonals conveying greater activity and effort than downward—or descending—diagonals. Consequently, when the context highlights the benefits of activity (vs. passivity), upward (vs. downward) diagonals lead to more favorable product judgments, greater product efficacy beliefs, and greater post‐consumption satisfaction. Furthermore, we provide process evidence that perceived product efficacy beliefs mediate these effects, and that the effect is strongest when the object being visually oriented is text rather than images. These findings are particularly important in light of our content analysis findings that diagonal orientation is a relatively underutilized design feature. Collectively, our findings suggest that firms should use upward diagonals when the product context highlights a favorable view of activity. Otherwise, the firm should use downward diagonals, especially when the product context encourages consumers to view passivity favorably.
Criticizing another's child: How teachers evaluate students during parent-teacher conferences
Authors: Pillet-Shore Danielle 
Published: January 2016

AbstractAs the principal occasion for establishing cooperation between family and school, the parent-teacher conference is crucial to the social and educational lives of children. But there is a problem: reports of parent-teacher conflict pervade extant literature. Previous studies do not, however, explain how conflict emerges in real time or how conflict is often avoided during conferences. This article examines a diverse corpus of video-recorded naturally occurring conferences to elucidate a structuralpreference organizationoperative during parent-teacher interaction that enables participants to forestall conflict. Focusing on teachers' conduct around student-praise and student-criticism, this investigation demonstrates that teachers do extra interactional work when articulating student-criticism. This research explicates two of teachers' most regular actions constituting this extra work:obfuscating responsibilityfor student-troubles by omitting explicit reference to the student, androutinizingstudent-troubles by invoking other comparable cases of that same trouble. Analysis illuminates teachers' work to maintain solidarity with students, and thus parents. (Institutional interaction, parent-teacher conferences, conversation analysis, criticism, praise, evaluating students, assessments, preference organization)*
Star Formation in the Local Milky Way
Authors: Lada Charles J. 
Published: January 2016

AbstractStudies of molecular clouds and young stars near the sun have provided invaluable insights into the process of star formation. Indeed, much of our physical understanding of this topic has been derived from such studies. Perhaps the two most fundamental problems confronting star formation research today are: 1) determining the origin of stellar mass and 2) deciphering the nature of the physical processes that control the star formation rate in molecular gas. As I will briefly outline here, observations and studies of local star forming regions are making particularly significant contributions toward the solution of both these important problems.
The Structure and Evolution of Protoplanetary Disks: an Infrared and Submillimeter View
Authors: Cieza Lucas A. 
Published: January 2016

AbstractCircumstellar disks are the sites of planet formation, and the very high incidence of extrasolar planets implies that most of them actually form planetary systems. Studying the structure and evolution of protoplanetary disks can thus place important constraints on the conditions, timescales, and mechanisms associated with the planet formation process. In this review, we discuss observational results from infrared and submillimeter wavelength studies. We review disk lifetimes, transition objects, disk demographics, and highlight a few remarkable results from ALMA Early Science observations. We finish with a brief discussion of ALMA's potential to transform the field in near future.
Rotation Profile of Kepler-63 from Planetary Transits
Authors: Netto Yuri , Valio Adriana 
Published: January 2016

AbstractCurrently it is possible to estimate the rotation profile of a star that harbours a planet in an orbit such that it eclipses the star periodically. During one of these transits, the planet may occult a spot on the photosphere of the star, causing small variations in its light curve. By detecting the same spot in a later transit, it is possible to estimate the stellar rotation period. Here we present the results of this model for the case of the star Kepler-63, which has a planet in an orbit with high obliquity. This means that the planetary eclipse occults many latitude bands of the star, from near the equator to the poles. The results show that Kepler-63 has differential rotation of 0.133 rd/d and a relative differential rotation of 11.4%.
Toward Direct Imaging of Low-mass Gas-Giant Planets with the James Webb Space Telescope
Authors: Schlieder J. E. , Beichman C. A. , Meyer M. R. , Greene T. 
Published: January 2016

AbstractIn preparation for observations with the James Webb Space Telescope (JWST), we have identified new members of the nearby, young M dwarf sample and compiled an up to date list of these stars. Here we summarize our efforts to identify young M dwarfs, describe the current sample, and detail its demographics in the context of direct planet imaging. We also describe our investigations of the unprecedented sensitivity of the JWST when imaging nearby, young M dwarfs. The JWST is the only near term facility capable of routinely pushing direct imaging capabilities around M dwarfs to sub-Jovian masses and will provide key insight into questions regarding low-mass gas-giant properties, frequency, formation, and architectures.
Precise Near-Infrared Radial Velocities
Authors: Plavchan Peter , Gao Peter , Gagne Jonathan , Furlan Elise , Brinkworth Carolyn , Bottom Michael , Tanner Angelle , Anglada-Escude Guillem , White Russel , Davison Cassy , Mills Sean , Beichman Chas , Johnson John Asher , Ciardi David , Wallace Kent , Mennesson Bertrand , Vasisht Gautam , Prato Lisa , Kane Stephen , Crawford Sam , Crawford Tim , Sung Keeyoon , Drouin Brian , Lin Sean , Leifer Stephanie , Catanzarite Joe , Henry Todd , von Braun Kaspar , Walp Bernie , Geneser Claire , Ogden Nick , Stufflebeam Andrew , Pohl Garrett , Regan Joe 
Published: January 2016

AbstractWe present the results of two 2.3 μm near-infrared (NIR) radial velocity (RV) surveys to detect exoplanets around 36 nearby and young M dwarfs. We use the CSHELL spectrograph (R ~ 46,000) at the NASA InfraRed Telescope Facility (IRTF), combined with an isotopic methane absorption gas cell for common optical path relative wavelength calibration. We have developed a sophisticated RV forward modeling code that accounts for fringing and other instrumental artifacts present in the spectra. With a spectral grasp of only 5 nm, we are able to reach long-term radial velocity dispersions of ~20–30 m s−1 on our survey targets.