bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transcranial magnetic stimulation (TMS) for major depression: a multisite, naturalistic, observational study of quality of life outcome measures in clinical practice
Authors: Janicak Philip G. , Dunner David L. , Aaronson Scott T. , Carpenter Linda L. , Boyadjis Terrence A. , Brock David G. , Cook Ian A. , Lanocha Karl , Solvason Hugh B. , Bonneh-Barkay Dafna , Demitrack Mark A. 
Published: July 2013

BackgroundTranscranial magnetic stimulation (TMS) is an effective and safe therapy for major depressive disorder (MDD). This study assessed quality of life (QOL) and functional status outcomes for depressed patients after an acute course of TMS.MethodsForty-two, U.S.-based, clinical TMS practice sites treated 307 outpatients with a primary diagnosis of MDD and persistent symptoms despite prior adequate antidepressant pharmacotherapy. Treatment parameters were based on individual clinical considerations and followed the labeled procedures for use of the approved TMS device. Patient self-reported QOL outcomes included change in the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) and the EuroQol 5-Dimensions (EQ-5D) ratings from baseline to end of the acute treatment phase.ResultsStatistically significant improvement in functional status on a broad range of mental health and physical health domains was observed on the SF-36 following acute TMS treatment. Similarly, statistically significant improvement in patient-reported QOL was observed on all domains of the EQ-5D and on the General Health Perception and Health Index scores. Improvement on these measures was observed across the entire range of baseline depression symptom severity.ConclusionThese data confirm that TMS is effective in the acute treatment of MDD in routine clinical practice settings. This symptom benefit is accompanied by statistically and clinically meaningful improvements in patient-reported QOL and functional status outcomes.
Towards a better understanding of the novel avian-origin H7N9 influenza A virus in China
Authors: Wang Yongbo , Dai Zhangyan , Cheng Han , Liu Zexian , Pan Zhicheng , Deng Wankun , Gao Tianshun , Li Xiaotong , Yao Yuangen , Ren Jian , Xue Yu 
Published: July 2013

AbstractRecently, a highly dangerous bird flu has infected over 130 patients in China and the outbreak was attributed to a novel avian-origin H7N9 virus. Here, we performed a systematic analysis of the virus. We clarified the controversial viewpoint on neuraminidase (NA) origin and confirmed it was reassorted from Korean wild birds with higher confidence, whereas common ancestors of pathogenic H7N9 genes existed only one or two years ago. Further analysis of NA sequences suggested that most variations are not drug resistant and current drugs are still effective for the therapy. We also identified a potentially optimal 9-mer epitope, which can be helpful for vaccine development. The interaction of hemagglutinin (HA) and human receptor analog was confirmed by structural modeling, while NA might influence cellular processes through a PDZ-binding motif. A simplified virus infection model was proposed. Taken together, our studies provide a better understanding of the newly reassorted H7N9 viruses.
High‐isolation switchable bandpass filter using connected‐coupling line
Authors: Chao Shih‐Fong , Lin Wei‐Cheng 
Published: July 2013

A new switchable bandpass filter using switchable connected‐coupling lines (SCCLs) is presented. The SCCL is embedded in a bandpass filter and treated as an admittance inverter to provide adequate coupling coefficient to form a bandpass response in an on state. The passband of the bandpass filter is centerd at 1.5 GHz with 12.8% 3‐dB fractional bandwidth. In the off state, the switchable line acts as a travelling‐wave switch to cut off the coupling path to achieve a high isolation. The measured isolation of the circuit is greater than 48 dB over the operating bandwidth.
Compact 3–11 GHz UWB planar unequal power divider using two‐section asymmetric coupled transmission lines and non‐uniform microstrip
Authors: Wu Y. , Liu Y. 
Published: July 2013

A compact upper wideband unequal power divider with planar configuration is proposed. This power divider includes two‐section asymmetric coupled transmission lines and non‐uniform microstrip. The measured results of the prototype divider show that the 12.1 dB return loss and ports‐isolation band is in the range from 3.1 to 10.6 GHz, the unequal power division coefficient is almost in the range 4.03–5 dB (the simulated result: 4.3–4.75 dB).
Power‐efficient, PVT robust conductance cancellation method for gain enhancement
Authors: Huang B. , Chen D. 
Published: July 2013

A power‐efficient, process, voltage and temperature (PVT) robust gds cancellation method for gain enhancement is proposed. The method generates a negative conductance, which matches and cancels the positive conductance. This makes the gds cancellation method effective over process and wide temperature variation without the aid of external calibration or a tuning circuit. The method senses signals from cascode nodes instead of output nodes, making the method insensitive to output voltage swing. The simulation results of an example implementation in IBM 0.13 µm process show at least 22 dB DC gain enhancement over all process corners and temperatures ranging from − 20 to 80°C, with less than 9% power consumption overhead.
Passive orientation measurement using magnetoquasistatic fields and coupled magnetic resonances
Authors: Arumugam D.D. , Ricketts D.S. 
Published: July 2013

A passive position orientation measurement method is presented which leverages the spatial variation of the reflected magnetoquasistatic field from a mobile loop to determine the loop's spatial orientation. The azimuthal orientation was measured from 0° to 360° at a distance of 1 m from the fixed measurement loop. Inverting the theoretical expressions to estimate orientation from measured field values resulted in an average and RMS error of 3.15° and 4.55°, respectively. This technique offers a means to accurately determine the orientation of the mobile loop through purely passive methods.
High field‐effect mobility amorphous InSnZnO thin‐film transistors with low carrier concentration and oxygen vacancy
Authors: Jang K. , Raja J. , Kim J. , Lee Y. , Kim D. , Yi J. 
Published: July 2013

The influence of carrier concentration and oxygen vacancy on the performance of amorphous‐indium–tin–zinc‐oxide (a‐ITZO) thin‐film transistors (TFTs) is reported. The ITZO TFT with lowest carrier concentration and oxygen vacancy has a high field‐effect mobility (μFE) of 37.2 cm2/V•s, a high on/off current ratio (ION/IOFF) of ∼1 × 107 and a low subthreshold swing (SS) of 0.93 V/decade. By increasing the carrier concentration and oxygen vacancy, μFE, ION/OFF and SS were surprisingly degraded to 14.4 cm2/V•s, ∼4 × 104 and 4.01 V/decade, respectively. By controlling the carrier concentration and oxygen vacancies of ITZO bulk, improvement of the performance in TFT devices can be achieved. The proposed high μFE of 37.2 cm2/V•s is enough for the application of next‐generation displays requiring ultra‐high resolution and high‐frame‐rate displays.
Three‐dimensional high‐speed optical coherence tomography system using KTN swept light source
Authors: Okabe Y. , Ueno M. , Sasaki Y. , Sakamoto T. , Toyoda S. , Kobayashi J. , Sugawa Y. , Fukuda A. , Ohmi M. 
Published: July 2013

Three‐dimensional (3D) optical coherence tomography (3D‐OCT) has attracted attention for visualising complex structures in the biomedical field. In this reported work, a high‐speed 3D‐OCT system is developed, which is based on a high‐speed swept light source and a Mach‐Zehnder interferometer with a high‐speed photodetector. The light source, incorporating a KTa1–xNbxO3 electro‐optic deflector, operates at a repetition rate of 200 kHz and enables high‐speed data acquisition. As a preliminary study, images of a strawberry's surface have been obtained, two‐ and three‐dimensionally. The 3D‐OCT system has potential for the construction of a four‐dimensional OCT image to dynamically display 3D‐OCT images.
60 GHz dual‐band bandpass filter using LTCC
Authors: Xu Xin , Wang Jianpeng , Zhang Gang 
Published: July 2013

A dual‐band bandpass filter with quasi‐elliptic response using a substrate integrated waveguide for 60 GHz dual‐band wireless communication systems is proposed. It is fabricated with standard low‐temperature co‐fired ceramic (LTCC) technology. The measured results indicate that the filter is operating at 59.78 and 61.56 GHz with fractional bandwidths of 2.1 and 2.2%, and minimum in‐band insertion losses of 3.61 and 3.55 dB, respectively. Furthermore, the proposed filter exhibits an electrical size (including the CPW measurement pads) of 2.38λg × 3.14λg, where λg is the guided wavelength at 60 GHz.
Compact tunable bandpass filter with wide tuning range and enhanced stopband characteristics
Authors: Zhao B.L. , He Z.T. , Wei X.B. , Shi Y. 
Published: July 2013

A compact tunable bandpass filter (BPF) with wide tuning range and enhanced stopband characteristics based on low‐temperature co‐fired ceramic technique is proposed. The wide tuning range is realised by properly introducing an axial coupling structure. Three transmission zeros are obtained near the passband for enhanced frequency selectivity by introducing mixed electric/magnetic (E/M) coupling between the source/load and the taped inductor. Back‐to‐back varactor diodes are adopted to improve linearity characteristics. A tunable BPF with a 120% tuning range from 370 to 850 MHz has been designed and fabricated to verify the proposed design concept. The measured results are in good agreement with the electromagnetic simulation. The circuit occupies only 4.0 × 3.0 × 1.6 mm3.
High RF performance improvement using surface passivation technique of AlGaN/GaN HEMTs at K‐band application
Authors: Lee B.H. , Kim R.H. , Lim B.O. , Choi G.W. , Kim H.J. , Hong I.P. , Lee J.H. 
Published: July 2013

A surface passivation technique of high electron mobility transistor (HEMT) devices is reported. The passivated HEMT device has a much higher RF performance of FT and Fmax than a non‐passivated one. The AlGaN/GaN HEMT has a short gate length of 0.15 µm using an E‐beam lithography system and very low ohmic contact resistance of 1.3 × 10−6 Ωcm−2 using a rapid thermal processing alloy system. In addition, to protect the active layer from the surface trap, an SiO2 thin film passivation process is applied by the plasma‐enhanced chemical vapour deposition system. The fabricated AlGaN/GaN HEMT exhibits a maximum drain current of 900 mA/mm and a maximum transconductance of 320 mS/mm. In particular, this device produces excellent RF performance of small‐signal characteristics, such as a current gain cut‐off frequency (fT) of 55 GHz and maximum oscillation frequencies (fmax) of 130 GHz.
Flat super‐continuum generation using carbon‐nanotube‐based modelocked laser and normal dispersion photonic crystal fibre
Authors: Liu H.H. , Chow K.K. 
Published: July 2013

A flat super‐continuum (SC) generated by a 1.5 µm passively fibre modelocked laser incorporating a single‐walled carbon‐nanotube‐based saturable absorber and a normal dispersion highly nonlinear photonic crystal fibre (PCF) is demonstrated. A compressed 620 fs pulse train from the modelocked laser is obtained and launched into the PCF. Since the pulses propagate in the normal dispersion regime of the PCF, linear frequency chirp is induced by self‐phase modulation which leads to a flat SC. An SC covering 200 nm with less than 7 dB power fluctuation is achieved. The experimental results are consistent with the theoretical analysis based on the nonlinear Schrödinger equation.
Metasurface‐loaded circularly‐polarised slot antenna with high front‐to‐back ratio
Authors: Chung K.L. , Kharkovsky S. 
Published: July 2013

A new technique to achieve high front‐to‐back radiation ratios of slot antennas is presented. A 0.8 mm thin metasurface is loaded onto a circularly‐polarised slot antenna and backed by a metallic reflector at close distances. The antenna has an overall height of ∼ 0.1 wavelengths. However, it exhibits wideband characteristics with a measured impedance bandwidth (voltage standing‐wave ratio ≤ 2) of 73.3% and a 3 dB axial‐ratio bandwidth of 29.1%. A broadside gain of 7 dBic with a front‐to‐back ratio of 23.7 dB is achieved at 2.7 GHz.
Wheat Arabinoxylan Structure Provides Insight into Function
Authors: Kiszonas Alecia M. , Fuerst E. Patrick , Morris Craig F. 
Published: July 2013

ABSTRACTRecent attention to dietary fiber in wheat (Triticum aestivum L.) has invigorated research in the nonstarch carbohydrate arabinoxylan (AX). AX molecules are composed of a linear xylose backbone with arabinose substitutions along the backbone. These arabinose substituents can also carry a ferulic acid moiety. AX molecules can be fractionated into two categories based on extraction properties that have a structural and conformational basis: water‐extractable (WEAX) and water‐unextractable (WUAX) molecules. The ferulic acid moieties also allow for oxidative cross‐linking between AX molecules or the tyrosine residues of proteins. The contents of total AX and WEAX molecules are primarily influenced by genetic differences; however, there is also evidence of environmental influence on content. There are several useful methods for quantifying AX molecules, providing varying levels of structural information as well as accuracy and precision. The high water‐absorption capacity of AX molecules results in a strong influence of AX on end‐use quality. Whereas WEAX molecules, in particular, tend to be detrimental for the quality of soft wheat products such as cookies, WEAX molecules are beneficial to the quality of hard wheat products such as bread. The role of WUAX molecules among the range of soft wheat products is as yet unclear; however, WUAX molecules tend to have a detrimental influence on bread. Because of the variable influence of AX structure on end‐use product functionality, closer examination of structure–function relationships may provide key insights into how to direct breeding efforts to maximize these relationships between AX molecules and other ingredients. Further investigation is necessary to obtain a more complete understanding of how the arabinose substitution levels and patterns affect end‐use quality and how the genetic basis of these traits can be resolved and manipulated for optimum end‐use quality.
The Violence of Abstract Space: Contested Regional Developments in Southern Mexico
Authors: Wilson Japhy 
Published: July 2013

AbstractThe article proposes a reinterpretation of Henri Lefebvre's concept of abstract space, emphasizing the significance of the ‘violence of abstraction’ within the concept itself, and within the concrete process of the capitalist production of space. This interpretation of abstract space is developed through the case of the Plan Puebla Panama (PPP) as an ‘actually existing’ abstract space. Launched in 2001 and abandoned in 2008, the PPP was a regional development programme for southern Mexico and Central America, which aimed to transform this region from a peripheral zone of peasant agriculture and social unrest into a modernized node of the global economy through the construction of infrastructure networks and the restructuring of economic activity. Focusing on southern Mexico, I explore the symbolic, structural and direct forms of violence embodied in the PPP: its abstraction from the lived spaces of the region; its incorporation of the region into global circuits of capital; and its repression of a network of place‐based resistances.
Effect of Temperature on Six Different Developmental Landmarks within the Pupal Stage of the Forensically Important Blowfly Calliphora vicina (Robineau‐Desvoidy) (Diptera: Calliphoridae)
Authors: Defilippo Francesco , Bonilauri Paolo , Dottori Michele 
Published: July 2013

AbstractThis study investigates the pupal development times of the blow fly Calliphora vicina, which were studied in the laboratory at six different constant temperatures (15, 20, 23, 25, 28, and 30°C each ± 1°C). Lower thresholds (tL) for development were estimated from the linear regression of the developmental rates on each temperature. These data have made it possible to calculate the accumulated degree days (ADD) necessary for C. vicina to complete the larval stage and to achieve adult emergence. The minimal duration of development from oviposition to adult emergence was found to be inversely related to temperature. Additionally, six landmarks in pupal development are showed, and for each of the landmarks, the ADD value was calculated for every rearing temperature involved. These data assist in calculating the duration of the pupal stage based on morphological characteristics and would be of great value for future forensic entomological casework.
First Report of Blaesoxipha plinthopyga (Diptera: Sarcophagidae) from a Human Corpse in the U.S.A. and a New State Geographic Record Based on Specimen Genotype
Authors: Wells Jeffrey D. , Smith Joshua L. 
Published: July 2013

AbstractCarrion flies in the taxonomic family Sarcophagidae are often recovered from a human corpse. However, because such specimens are difficult to identify, the forensic literature on this taxon is quite limited compared with that of the commonly employed Calliphoridae. Faced with a sarcophagid larva that could not be identified microscopically from a death investigation in the state of Idaho, we generated cytochrome oxidase one DNA sequence data from the specimen. Comparison to a reference data set of forensically significant sarcophagids from Canada and the U.S.A. confirmed that this was the first discovery of Blaesoxipha plinthopyga in a human corpse in the U.S.A. and the first record of this species in Idaho. Because B. plinthopyga occurs from the Northern U.S.A. to the Neotropics, it is potentially useful for estimating time since death at many locations.
Forensic Identification of Blood in the Presence of Contaminations Using Raman Microspectroscopy Coupled with Advanced Statistics: Effect of Sand, Dust, and Soil
Authors: Sikirzhytskaya Aliaksandra , Sikirzhytski Vitali , McLaughlin Gregory , Lednev Igor K. 
Published: July 2013

AbstractBody fluid traces recovered at crime scenes are among the most common and important types of forensic evidence. However, the ability to characterize a biological stain at a crime scene nondestructively has not yet been demonstrated. Here, we expand the Raman spectroscopic approach for the identification of dry traces of pure body fluids to address the problem of heterogeneous contamination, which can impair the performance of conventional methods. The concept of multidimensional Raman signatures was utilized for the identification of blood in dry traces contaminated with sand, dust, and soil. Multiple Raman spectra were acquired from the samples via automatic scanning, and the contribution of blood was evaluated through the fitting quality using spectroscopic signature components. The spatial mapping technique allowed for detection of “hot spots” dominated by blood contribution. The proposed method has great potential for blood identification in highly contaminated samples.
Prey‐specific foraging tactics in a web‐building spider
Authors: Welch Kelton D. , Haynes Kenneth F. , Harwood James D. 
Published: July 2013

Abstract

Predator foraging behaviour can have important impacts on trophic‐web structure, and on biological control. In agroecosystems, foraging‐tactic selection may determine whether the predator feeds on pest or nonpest prey.
We examined the foraging behaviour of a flexibly‐foraging web‐building spider in response to pest (aphids) and nonpest prey (springtails) aiming to assess the potential role of predator foraging behaviour in biological control.
Spiders were allowed to choose between simulated microhabitats with and without a given prey item aiming to determine what tactics spiders would use to forage for the given prey.
Spiders preferred microhabitats with aphid prey over paired microhabitats with no prey but showed no preference for springtail prey. Spiders rarely constructed webs in response to aphids but frequently utilized web‐construction tactics in the presence of springtails.
These findings demonstrate that predators can regulate their foraging activity to maximize the consumption of specific prey items.
In the many cases where pest and nonpest prey differ in ecology, prey‐specific foraging tactics such as these may limit the usefulness of natural enemies in pest suppression: high‐quality, nonpest prey may cause shifts in predator behaviour that reduce consumption of pest prey. Therefore, nonpest prey can have behaviour‐mediated, indirect effects on biological control.
Fragmented QRS Complexes Are Associated with Increased Left Ventricular Mass in Patients with Essential Hypertension
Authors: Kadi Hasan , Kevser Ayşe , Ozturk Ahmet , Koc Fatih , Ceyhan Koksal 
Published: July 2013

BackgroundLeft ventricular hypertrophy (LVH) is an independent predictor of poor prognosis in patients with hypertension. In hypertensive hypertrophy, the pathophysiological mechanism is the accumulation of collagen in the myocardium. Fragmented QRS (fQRS) complexes are associated with myocardial fibrosis.MethodsThe study population included 90 patients with hypertension and a normal coronary angiogram. The fQRS was defined as the presence of an additional R wave (R′), notching of the R or S wave, or the presence of fragmentation in two contiguous leads corresponding to a major coronary artery. Echocardiographic examinations were performed according to the recommendations of the American Society of Echocardiography.ResultsForty‐five patients who had fQRS and were suitable for the study criteria were compared with 45 age‐ and gender‐matched patients who did not have fQRS according to demographic data and echocardiographic findings. The left ventricular (LV) mass index (g/m2) was significantly higher (P < 0.001) in the group with fQRS. The wall thickness, diameter, volume, and ejection fraction (EF) were higher in this group (P < 0.001). Concentric and eccentric hypertrophy were also higher in this group (P < 0.001). In the logistic regression analysis, fQRS on ECG was an indicator of LVH in hypertensive patients (B = 0.064; P < 0.001; odds ratio = 1.066; 95% confidence interval = 1.041–1.092)ConclusionThe LV mass index of the hypertensive patients who had fQRS on their ECGs was significantly higher than that of the patients who did not, and fQRS on ECG was an important indicator of LVH in hypertensive patients.