bluuebunny/crossref_metadata_2025_split huggingface dataset:
Theory of Mind in Eating Disorders and Their Relationship to Clinical Profile
Authors: Tapajóz Pereira de Sampaio Fernanda , Soneira Sebastian , Aulicino Alfredo , Allegri Ricardo F. 
Published: July 2013

ABSTRACTObjectiveThis study aimed to assess cognitive and affective theory of mind (ToM) in patients with eating disorders and to explore its relationship with the clinical and psychopathological profile.MethodTheory of mind was assessed in 65 women, consisting of 22 with anorexia nervosa (AN), 19 with bulimia nervosa (BN), and 24 healthy controls (HC), using the Reading the Mind in the Eyes Test and the Faux Pas Test. These tasks evaluate affective and cognitive ToM, respectively. We also examined the correlations between performance on ToM tasks and the clinical psychopathological profile, which was extensively evaluated through self‐report instruments and clinical interviews.ResultsPatients with AN had poorer performance than BN patients and HCs had in the affective ToM task, particularly in recognizing negative emotions and emotions in male eyes. Moreover, this deficit showed no correlation with the psychopathological profile. Performance in the BN group was equivalent to that of HCs in both tasks.ConclusionsIn this study, patients with AN showed an impairment in affective ToM, independent of their clinical status. Consistent with other studies, our findings demonstrate a specific difficulty in social cognition in patients with AN. This may be a trait marker in this population and should be considered in treatment. Furthermore, patients with AN and BN have different difficulty profiles in this domain of social cognition. Copyright © 2013 John Wiley & Sons, Ltd and Eating Disorders Association.
Predicting concentrations of the cytostatic drugs cyclophosphamide, carboplatin, 5-fluorouracil, and capecitabine throughout the sewage effluents and surface waters of europe
Authors: Johnson Andrew C. , Oldenkamp Rik , Dumont Egon , Sumpter John P. 
Published: July 2013

Abstract

The present study evaluated the potential environmental concentrations of 4 cytostatic (also known as cytotoxic) drugs in rivers. The antimetabolite 5-fluorouracil (5FU) and its pro-drug capecitabine were examined based on their very high use rates, cyclophosphamide (CP) for its persistence, and carboplatin for its association with the metal element platinum. The study combined drug consumption information across European countries, excretion, national water use, and sewage removal rates to derive sewage effluent values across the continent. Results showed considerable variation in the popularity of individual cytostatic drugs across Europe, including a 28-fold difference in 5FU use and 15-fold difference in CP use. Such variations could have a major effect on the detection of these compounds in effluent or river water. Overall, capecitabine and CP had higher predicted levels in effluent than 5FU or carboplatin. Predicted effluent values were compared with measurements in the literature, and many non-detects could be explained by insufficient limits of detection. Linking the geographic based water resources model GWAVA with this information allowed water concentrations throughout 1.2 million km of European rivers to be predicted. The 90th percentile (worst case) prediction indicated that, with the exception of capecitabine, more than 99% of Europe's rivers (by length) would have concentrations below 1 ng/L for these cytostatic drugs. For capecitabine, 2.2% of river length could exceed 1 ng/L. Environ Toxicol Chem 2013;32:1954–1961. © 2013 SETAC
Predictors of mercury spatial patterns in San Francisco Bay forage fish
Authors: Greenfield Ben K. , Slotton Darell G. , Harrold Katherine H. 
Published: July 2013

Abstract

Pollution reduction efforts should be targeted toward those sources that result in the highest bioaccumulation. For mercury (Hg) in estuaries and other complex water bodies, carefully designed biosentinel monitoring programs can help identify predictors of bioaccumulation and inform management priorities for source reduction. This study employed a probabilistic forage fish Hg survey with hypothesis testing in San Francisco Bay (California, USA). The goal was to determine what pollution sources, regions, and landscape features were associated with elevated Hg bioaccumulation. Across 99 sites, whole-body Hg concentrations in Mississippi silversides (Menidia audens) and topsmelt (Atherinops affinis) followed a broad spatial gradient, declining with distance from the Guadalupe River (Pearson's r = –0.69 and –0.42, respectively), which drains historic mining areas. Site landscape attributes and local Hg sources had subtle effects, which differed between fish species. Topsmelt Hg increased in embayment sites (i.e., enclosed sites including channels, creek mouths, marinas, and coves) and sites with historic Hg-contaminated sediment, suggesting an influence of legacy industrial and mining contamination. In 2008, Mississippi silverside Hg was reduced at sites draining wastewater-treatment plants. Fish Hg was not related to abundance of surrounding wetland cover but was elevated in some watersheds draining from historic Hg-mining operations. Results indicated both regional and site-specific influences for Hg bioaccumulation in San Francisco Bay, including legacy contamination and proximity to treated wastewater discharge. Environ Toxicol Chem 2013;32:2728–2737. © 2013 SETAC
Biochemical and morphological responses in Chironomus riparius (Diptera, Chironomidae) larvae exposed to lead-spiked sediment
Authors: Arambourou Helene , Gismondi Eric , Branchu Philippe , Beisel Jean-Nicolas 
Published: July 2013

Abstract

The aim of the present study was to assess the potential use of biochemical markers and mentum deformities as indicators of long-term exposure to lead (Pb) in Chironomus riparius larvae. To do this, the authors measured 3 biochemical markers (i.e., malondialdehyde level, metallothionein concentration, and energy reserve content) as well as larval growth and mentum deformities after 16-d exposure to sediment containing Pb. The concentrations studied ranged from 3.5 mg/kg to 505.5 mg/kg dry weight. Despite the bioaccumulation of Pb in C. riparius bodies, frequencies of both mentum deformities and the dry weight were not significantly different between the control and stressed groups. On the contrary, Pb exposure caused a significant increase of both malondialdehyde level and metallothionein concentration. The increase of body Pb concentrations did not significantly modify body copper and zinc concentrations. Moreover, we observed a decrease of total lipid content and an increase of glycogen content as a function of a dose–response relationship, while no variation in protein concentrations was observed. Despite the adverse effects observed at the biochemical level, larval development was not affected. These results suggested that measurements of malondialdehyde level, metallothionein concentration, and energy reserve content can be used as relevant biomarkers of long-term sublethal exposure to Pb in C. riparius larvae. Environ Toxicol Chem 2013;32:2558–2564. © 2013 SETAC
Noxious or nutritious? Progress in controlling nitrate as a contaminant in leafy crop species
Authors: Weightman Richard M. , Hudson Elizabeth M. 
Published: July 2013

AbstractHigh levels of nitrate in forage are a danger to the health of ruminant livestock consuming leafy crop species. Nitrate is also classed by food safety authorities as a contaminant in fresh produce. Since limits on nitrate levels in fresh produce marketed within the European Union were set, research has aimed to reduce nitrate, and to limit its variation. Progress is reported which focuses on the agronomy of a range of leafy salad crop species including lettuce (Lactuca sativa), spinach (Spinacea oleracea) and wild rocket (Diplotaxis tenuifolia). Genetic studies aiming to understand the sources of genetic variation in nitrate accumulation in lettuce are reviewed and considered in the context of research aiming to improve the nitrogen use efficiency of crop plants. Recent evidence is reported which suggests that nitrate could have significant health benefits that may contribute to the positive effects of eating a diet rich in fresh fruit and vegetables. Therefore, with the exception of babies and very young children, the risks from excess nitrate consumption are much greater for farm animals than they are for humans. Nevertheless, producers still need to carefully control nitrogen supply to leafy salad crops, to ensure that the risks of diffuse pollution from overuse of nitrogen fertilizer are minimized.
Treatment of depressive symptoms in diverse, rural, and vulnerable older adults
Authors: Scogin Forrest R. , Moss Kathryn , Harris Grant M. , Presnell Andrew H. 
Published: July 2013

BackgroundWe examined the effects of home‐delivered cognitive‐behavior therapy (CBT) on depressive symptoms among rural, diverse, and vulnerable older adults. Furthermore, we differentiated depression into its two salient aspects: psychological and somatic.MethodData came from a randomized controlled experiment of CBT on 134 individuals residing in rural Alabama.ResultsCognitive‐behavior therapy resulted in significantly lower depressive symptom severity scores. When depressive symptoms were categorized as psychological or somatic, CBT was found to significantly improve the former but not the latter. Notably, there was a trend toward somatic symptom improvement.ConclusionCognitive‐behavior therapy can be an effective treatment for depression in a hard‐to‐reach group of older adults. Home delivery affords advantages but is also an expensive delivery modality. Diverse older adults responded to the CBT intervention. Copyright © 2013 John Wiley & Sons, Ltd.
A Social Network Perspective on Turnover Intentions: The Role of Distributive Justice and Social Support
Authors: Soltis Scott M. , Agneessens Filip , Sasovova Zuzana , Labianca Giuseppe (Joe) 
Published: July 2013

AbstractOrganizations are increasingly concerned about retaining human talent, particularly within knowledge‐based industries where turnover is expensive. Our study employs a social network perspective to explore the influence of employees' formal and informal workplace relationships on their turnover intentions. We do this in a life sciences organization experiencing employee turnover at over twice the rate of the industry average. Drawing on extant work on the effects of distributive justice at work, we argue that employees who are heavily sought out for advice see themselves as being under‐rewarded for the time and effort that goes into providing advice, thus increasing turnover intentions. Additionally, we argue that employees see the ability to seek out advice as a form of social support that embeds them into the organization and decreases intention to quit. By exploring the network positions of individuals in the workflow and advice networks, we demonstrate that when employees are either providing advice to someone they are obligated to work with or are able to seek out advice from others who are not required to work with them, the relationship with turnover intentions is most intense. We conclude by discussing contributions to the theory and practice of human resource management.
Dynamic sonography and CT findings of unilateral submandibular gland agenesis associated with herniated hypertrophic sublingual gland
Authors: Yerli Hasan 
Published: July 2013

ABSTRACTCongenital agenesis of the submandibular gland is uncommon. We report dynamic sonography and CT findings of the unilateral submandibular gland agenesis associated with herniated hypertrophic sublingual gland tissue through the mylohyoid gap. The dynamic sonography examination applied at rest and during the modified Valsalva maneuver demonstrated hypertrophied sublingual gland prolapsing to the anterior part through the mylohyoid gap. This may be the first reported case describing dynamic sonography findings of this entity. CT confirmed the agenesis of the left submandibular gland and compensatory hypertrophy of the ipsilateral sublingual gland. © 2013 Wiley Periodicals, Inc. J Clin Ultrasound 42:176–179, 2014
Application of ionic‐liquid‐supported magnetic dispersive solid‐phase microextraction for the determination of acaricides in fruit juice samples
Authors: Zhang Jiaheng , Li Min , Li Yubo , Li Zongyang , Wang Fenfen , Li Qiu , Zhou Wenfeng , Lu Runhua , Gao Haixiang 
Published: July 2013

In this study, ionic liquid (IL) supported magnetic dispersive solid‐phase microextraction was developed and a systematic investigation was conducted on imidazolium ILs for their extraction performance. This nano‐based pretreatment procedure was then applied for the determination of acaricides in fruit juice samples for the first time. A feature of this technique is that the commonly laborious chemical modification of magnetic nanoparticles (MNPs) was skillfully circumvented. Because of the combination of ILs, dispersive liquid–liquid microextraction, and dispersive MNP solid‐phase microextraction, the extraction efficiency can be significantly improved using commercial MNPs. Parameters of the extraction method were investigated by one‐factor‐at‐a‐time approach. The optimal experimental conditions were as follows: emulsification for 2 min by sonication with the addition of 50 μL [C6MIM][NTf2] in the dispersive liquid–liquid microextraction step and vortexing for 90 s after adding 40 mg spherical barium ferrite nanoparticles (20 nm). The desorption time was 2 min. Good linearity (0.5–500 ng/mL) and detection limits within the range of 0.05–0.53 ng/mL were achieved. The application of the proposed method was demonstrated by the analysis of real fruit juice samples, in which recoveries between 85.1 and 99.6% were obtained.
Determination of neurotransmitter amino acids in mouse central nervous system by CE–LIF
Authors: Xiong Xu‐Jie , Guo Xiao‐Feng , Ge Xu‐Xia , Wang Hong , Zhang Hua‐Shan 
Published: July 2013

An MEKC method with LIF detection has been developed for the determination of seven neurotransmitter amino acids (NAAs) using 1,3,5,7‐tetramethyl‐8‐(N‐hydroxysuccinimidyl butyric ester)difluoroboradiaza‐S‐indacene as the labeling reagent. After derivatization at room temperature for 30 min, the seven target NAAs including glycine, alanine, γ‐aminobutyric acid, taurine, glutamine, glutamic acid, and aspartic acid were separated in running buffer, which consisted of 70 mM pH 4.00 H3PO4/Na3PO4 buffer, 5.5 mM cetyltrimethyl ammonium bromide and 20% v/v acetonitrile within 17 min. The LODs were 2 ∼ 14 × 10−10 M without interference from other coexisting amino acids. The proposed method has been applied to the analysis of NAAs in the central nervous systems of healthy mice and those with Alzheimer's disease with recoveries of 92–104%.
CAD Model to Predict the Effect of Radome on the Characteristics of Rectangular Patch Antenna
Authors: Biswas Mantosh , Banik Sourav , Biswas Mahitosh , Sukla Archana 
Published: July 2013

ABSTRACTA simple CAD model based on cavity model analysis is proposed to compute accurately the resonant frequency, input impedance, and gain of radome loaded rectangular patch antenna. The computed values using present model for wide range of radome parameters are compared with different theoretical and experimental values available in open literature. To validate the present model, we have performed several sets of experiments. The present model shows very close agreements with the experiments compared to the other models. We have also used electromagnetic software (HFSS) to generate simulated data. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2460–2468, 2013
Low Cost E/O and O/E Modules for Radio Over Fibre Link
Authors: Łysiuk Anna , Godziszewski Konrad , Yashchyshyn Yevhen 
Published: July 2013

ABSTRACTIn this article low cost and low complexity E/O and O/E modules for radio over fibre link have been presented. The modules are built based on pigtail coaxial laser diode and photodiode available on the market. In the designs special attention has been focused on achieving flat transmission characteristics in the frequency range of 1‐3 GHz. The modules have been equipped with signalization of the proper supply and generation of optical carrier. The devices have been dedicated to transmission of modulated RF signals through optical fibre in radio over fibre link. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2423–2425, 2013
Small Planar Dual‐Band Microstrip‐Fed Monopole Antenna for Wireless Local Area Network Applications Using Slotted Conductor‐Backed Plane
Authors: Moosazadeh Mahdi , Esmati Zahra 
Published: July 2013

ABSTRACTThis article presented a dual‐band monopole antenna fed by a 50‐Q microstrip line for wireless local area network applications. The antenna consists of a square patch as radiator and slotted conductor‐backed plane which can generate dual‐band operations. The slotted conductor‐backed plane produces two resonant bands at about 2.4 GHz for the 802.11b standard and 5 GHz for the upper band of the 802.11a. By adjusting the positions and the lengths of these structures of slots on the conductor‐backed plane, two different current paths can be obtained at different frequency bands. The designed antenna has a small overall size of 15 × 15 mm2, and operates over the frequency ranges, 2.4–2.5 GHz and 4.2–7.5 GHz suitable, which can cover the frequency bands from 2.4 to 2.484 GHz, for the 802.11b standard and from 5.15 to 5.35 GHz (the lower band) and from 5.725 to 5.825 GHz (the higher band) for the 802.11a standard. Simulation and measurement results of the proposed antenna show good agreements. Experimental results show that the proposed dual‐band antenna has good characteristics in terms of radiation pattern and gains. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2380–2383, 2013
Efficient Closed‐Form Green's Functions for Layered Stripline Structures
Authors: Dingand Jun , Dvorak Steven L. 
Published: July 2013

ABSTRACTIn this article, simple and efficient closed‐form Green's function representations for various inhomogeneously‐filled (layered) stripline structures are derived in terms of cylindrical and spherical waves for a horizontal electric dipole source. The method is based on a two‐level approximation of the spectral‐domain Green's function. After using a fast pole‐location method to extract the surface‐wave modes that are guided by the dielectric slabs and the parallel‐plate modes that are trapped by the two ground planes, we first use a method that is similar to the first step in the traditional two‐level discrete complex image method (DCIM). This step provides a good approximation to the spectral‐domain Green's function for large values of the spectral variable
, thus accounting for the fields at near and intermediate distances from the source. The remainder (smaller values of
) of the spectral‐domain Green's function is approximated using a few poles and residues by using the total least squares algorithm, which requires much less computational resources as compared to the vector fitting method or DCIM. This portion of the Green's function accounts well for the fields that are further away from the source. Our proposed method provides an efficient and accurate means for representing Green's functions in layered stripline structures both near and far from the source. The results are verified by comparing with those obtained using the traditional two‐level DCIM as well as direct numerical integration of the spectral‐domain Green's function. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2261–2265, 2013
Low‐cost OFDM Direct Detection Passive Optical Network
Authors: Stepniak G. 
Published: July 2013

ABSTRACTIn this article, operation of a low‐cost orthogonal frequency division multiplexing–based passive optical network is presented. At the optical network units, the received signal is downconverted and filtered in analog domain, which enables use of analog to digital converters of low sampling rates. The conception is verified experimentally. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2504–2507, 2013
Electrically Small Broadband VHF/UHF Planar Antenna Matched Using a Non‐Foster Circuit
Authors: Alam Md. Nazmul , Dougal Roger A. , Ali Mohammod 
Published: July 2013

ABSTRACTA broadband non‐Foster matched Planar Inverted‐F Antenna is proposed for 100–500 MHz VHF/UHF handheld terminal applications. The proposed design shows that in the lower frequencies antenna gain improvement of as much as 25 dB can be obtained with the help of the broadband matching circuit for a small antenna on a 0.05 wavelength ground plane at the lowest frequency. The issues of RF power versus matching and circuit stability are pointed out. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2494–2497, 2013
Study of Link Gain and Locking Range in Hybrid Mode‐Locked Laser‐Based MillimeteR‐Wave Radio‐Over‐Fiber System
Authors: Khawaja Bilal A. , Cryan Martin J. 
Published: July 2013

ABSTRACTAn investigation of hybrid mode‐locked lasers is performed to better understand their link gain and locking range behavior under external RF injection for their use in millimeter wave radio‐over‐fiber systems. The dependence of 40‐GHz link gain on different parameters is initially identified and then the three main parameters of gain and saturable absorber section biases and external RF injection signal power are studied in detail. It is found that higher injection power leads to lower link gain ranging from −19dB to −22dB, whereas lower injection power gives higher link gain ranging from −10dB to −19.9dB. This article also reports a hybrid mode‐locking range of 90.97 MHz which is the widest reported so far for the technique used here. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2450–2454, 2013
A Solar‐Powered 2.4‐GHz LNA RFIC
Authors: Wu Jian‐Ming , Lin Yan‐Tsang 
Published: July 2013

ABSTRACTA 2.4‐GHz low‐noise amplifier (LNA) radio frequency integrated circuit is designed and implemented using the 18‐μm CMOS standard process for ZigBee applications. A solar panel with a regulator circuit directly converts solar power to the electrical power of the LNA. The forward body bias method is applied to reduce the power consumed by the LNA, as required to provide green energy. Measurements of the solar‐powered 2.4‐GHz LNA are made, revealing that the noise figure is 2.91 dB, the gain is 10.89 dB, and the input‐referred third‐order intercept point is 0 dBm. A voltage of 0.6 V is supplied to the LNA and the power consumption is then 1.08 mW. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2377–2380, 2013
Wideband Square Loop Antenna with Parasitic Loop Component
Authors: Lee Hyeonjin , Kim Tae‐Hong 
Published: July 2013

ABSTRACTIn this article, we designed the broadband square loop antenna with a parasitic loop. To increase bandwidth of the single square loop antenna, we desinged the antenna with the parasitic loop at outside of the square loop. The feeding method of the proposed antenna is fed by a coplanar waveguide structure. We analyzed and designed the antenna by using Ansoft co.' HFSS. The bandwidth of the proposed antenna with the parasitic loop was increased above 2.5 times compared with single square loop antenna. The proposed antenna has an impedance bandwidth of 2.52 GHz under the condition below voltage standing wave ratio two and a maximum gain of 8.7 dBi at the operating frequency of 6.4 GHz. The designed antenna could be used to support WLAN communications and ITS applications bands. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2302–2304, 2013