bluuebunny/crossref_metadata_2025_split huggingface dataset:
A pattern‐reconfigurable water‐loaded MIMO antenna
Authors: Qian Ya‐Hui , Chu Qing‐Xin 
Published: May 2017

AbstractA novel radiation pattern reconfigurable multiple‐input multiple‐output (MIMO) antenna based on the loading of water is presented. By altering the situation of loading and unloading the distilled water on the surface of the parasitic element, the function of the parasitic element can be switched between a director and a reflector. According to the Yagi‐Uda principle, the antenna creates a directional radiation pattern in the azimuth plane through the electromagnetically coupled parasitic elements. A good direction is achieved with the front‐to‐back of 13 dBi. The MIMO antenna consists of 2 identical elements lying orthogonally to each other. As a result, high‐isolation (>35 dB) and low‐envelop correlation coefficient (ρe < 0.0001) between MIMO elements are obtained by orthogonal dual‐polarization antenna element. Good agreement is achieved between the measured results and the simulated results.
A high selective filtering small size/dual band antenna using hybrid terminated modified CRLH cell
Authors: Abdalla Mahmoud A. 
Published: May 2017

AbstractThis article presents a new small size dual band metamaterial antenna. The antenna is realized using a single cell of a suggested modified version of composite right left handed transmission line terminated by a hybrid capacitive loading with short circuit termination. The hybrid termination leads to decrease the size of the antenna whereas the modified composite right left handed cell configuration leads to introduce dual band antenna functionality at 2.5 and 2.92 GHz. The antenna size is only 31 × 26 mm2. Compared to, single band, non‐selective, conventional patch antenna, the size of the proposed antenna is only 9 and 11.5% at the two former frequencies, respectively. Despite the small size, the antenna gain is more than 3.5 dBi at the two operating frequencies. Moreover, the antenna has a high roll off beyond the operating frequency band which leads to high selective characteristics. The antenna can suppress 100% of the nearby signal power beyond its bands by 300 MHz at lower band and 200 MHz at upper band. The antenna design is discussed; the full wave simulation and experimental measurements are introduced for validating the results.
Quad‐wideband bandpass filter with high design flexibility based on independent triple‐mode resonators
Authors: Qiang Tian , Wang Cong , Kim Nam‐Young 
Published: May 2017

AbstractThis work presents a quad‐wideband bandpass filter (BPF) based on independent triple‐mode resonators (TMRs). Multiple TMRs can be designed at any desired frequencies below 5 GHz without interfering the in‐band performance of the other TMRs. Because of the intrinsic wideband property of TMR, four TMRs are applied and fully surrounded by feedline to produce the final quad‐wideband BPF. The 1st harmonic responses of TMR 1 and TMR 2 are suppressed to less than 23 dB below 5 GHz because of the source‐load coupling effect of the feedline. Therefore, no harmonic response is introduced to interfere the in‐band performance of the followed‐up TMR 3 and TMR 4. Furthermore, all TMRs can be independently tuned without interfering the others, which further proves the flexibility of our proposed work. The measurement results of the fabricated filter show a 3‐dB fractional bandwidth (FBW) above 15% for each passband, which is notably superior compared to other reported works. Good in‐band performance of 0.84 dB/0.84 dB/0.83 dB/1.12 dB is obtained at the operation band of 1.8 GHz/2.4 GHz/3.2 GHz/4.5 GHz with a compact circuit size of 0.29 λg × 0.24 λg. The simulation is consistent with the measurement, which validates our work.
UHF passive RFID‐based sensor‐less system to detect humidity for irrigation monitoring
Authors: Alonso Daniel , Zhang Qianyun , Gao Yue , Valderas Daniel 
Published: May 2017

AbstractThis article aims to propose a RFID system to detect the humidity of the soil in flowerpots and help farmers to judge whether the plants should be watered or not. By tuning the tag to dry soil state, it achieves higher dynamic range and sensitivity (20 dB) compared to a commercial RFID tag performance. This approach saves the addition of a sensor element to the RFID tag to operate as a wireless sensor.
Inverse E‐shape chiral metamaterial for long distance telecommunication
Authors: Hasan M. M. , Faruque M. R. I. , Islam M. T. 
Published: May 2017

AbstractIn this article, a chiral metamaterial based on the inverse E‐shape combined with the outer ring resonator that look like an inverse E‐shape structure has been discussed. The designed metamaterial structure is printed on Rogers RT 5880 material and electromagnetic simulator CST Microwave Studio has been used to design, simulation and investigation purposes. The proposed structure shows resonance at C‐band and exhibits 5.14 GHz bandwidth from 4 to 9.14 GHz. The effective medium ratio of the designed metamaterial is 6.83 and shows left handed characteristics at 7.61 GHz. Because of the bandwidth in the major portion of C‐band this proposed chiral metamaterial is applicable for long distance telecommunication applications.
Association between textural and morphological tumor indices on baseline PET‐CT and early metabolic response on interim PET‐CT in bulky malignant lymphomas
Authors: Ben Bouallègue Fayçal , Tabaa Yassine Al , Kafrouni Marilyne , Cartron Guillaume , Vauchot Fabien , Mariano‐Goulart Denis 
Published: May 2017

PurposeWe investigated whether metabolic, textural, and morphological tumoral indices evaluated on baseline PET‐CT were predictive of early metabolic response on interim PET‐CT in a cohort of patients with bulky Hodgkin and non‐Hodgkin malignant lymphomas.MethodsThis retrospective study included 57 patients referred for initial PET‐CT examination. In‐house dedicated software was used to delineate tumor contours using a fixed 30% threshold of SUV max and then to compute tumoral metabolic parameters (SUV max, mean, peak, standard deviation, skewness and kurtosis, metabolic tumoral volume (MTV), total lesion glycolysis, and area under the curve of the cumulative histogram), textural parameters (Moran's and Geary's indices, energy, entropy, contrast, correlation derived from the gray‐level co‐occurrence matrix, area under the curve of the power spectral density, auto‐correlation distance, and granularity), and shape parameters (surface, asphericity, convexity, surfacic extension, and 2D and 3D fractal dimensions). Early metabolic response was assessed on interim PET‐CT using the Deauville 5‐point scale and patients were ranked according to the Lugano classification as complete or not complete metabolic responders. The impact of the segmentation method (alternate threshold at 41%) and image resolution (Gaussian postsmoothing of 3, 5, and 7 mm) was investigated. The association of the proposed parameters with early response was assessed in univariate and multivariate analyses. Their added predictive value was explored using supervised classification by support vector machines (SVM). We evaluated in leave‐one‐out cross‐validation three SVMs admitting as input features (a) MTV, (b) MTV + histological type, and (c) MTV + histology + relevant texture/shape indices.ResultsFeatures associated with complete metabolic response were low MTV (P = 0.01), low TLG (P = 0.003), high power spectral density AUC (P = 0.007), high surfacic extension (P = 0.006), low 2D fractal dimension (P = 0.007), and low 3D fractal dimension (P = 0.003). The prognostic value of these metrics was optimal with the 30% segmentation threshold and overall was progressively altered with decreasing image resolution. In cross‐validation, the SVM accounting for texture and shape achieved the highest predictive value with ROC AUC of 0.82 and 80% accuracy (compared with 0.68 and 61% for MTV, and 0.65 and 68% for MTV + histology).ConclusionsThe combination of usual prognostic factors with appropriately chosen textural and shape parameters evaluated on baseline PET‐CT improves the prediction of early metabolic response in bulky lymphoma.
The influence of non‐rigid anatomy and patient positioning on endoscopy‐CT image registration in the head and neck
Authors: Ingram W. Scott , Yang Jinzhong , Wendt Richard , Beadle Beth M. , Rao Arvind , Wang Xin A. , Court Laurence E. 
Published: May 2017

PurposeTo assess the influence of non‐rigid anatomy and differences in patient positioning between CT acquisition and endoscopic examination on endoscopy‐CT image registration in the head and neck.MethodsRadiotherapy planning CTs and 31–35 daily treatment‐room CTs were acquired for nineteen patients. Diagnostic CTs were acquired for thirteen of the patients. The surfaces of the airways were segmented on all scans and triangular meshes were created to render virtual endoscopic images with a calibrated pinhole model of an endoscope. The virtual images were used to take projective measurements throughout the meshes, with reference measurements defined as those taken on the planning CTs and test measurements defined as those taken on the daily or diagnostic CTs. The influence of non‐rigid anatomy was quantified by 3D distance errors between reference and test measurements on the daily CTs, and the influence of patient positioning was quantified by 3D distance errors between reference and test measurements on the diagnostic CTs. The daily CT measurements were also used to investigate the influences of camera‐to‐surface distance, surface angle, and the interval of time between scans.ResultsAverage errors in the daily CTs were 0.36 ± 0.61 cm in the nasal cavity, 0.58 ± 0.83 cm in the naso‐ and oropharynx, and 0.47 ± 0.73 cm in the hypopharynx and larynx. Average errors in the diagnostic CTs in those regions were 0.52 ± 0.69 cm, 0.65 ± 0.84 cm, and 0.69 ± 0.90 cm, respectively. All CTs had errors heavily skewed towards 0, albeit with large outliers. Large camera‐to‐surface distances were found to increase the errors, but the angle at which the camera viewed the surface had no effect. The errors in the Day 1 and Day 15 CTs were found to be significantly smaller than those in the Day 30 CTs (P < 0.05).ConclusionsInconsistencies of patient positioning have a larger influence than non‐rigid anatomy on projective measurement errors. In general, these errors are largest when the camera is in the superior pharynx, where it sees large distances and a lot of muscle motion. The errors are larger when the interval of time between CT acquisitions is longer, which suggests that the interval of time between the CT acquisition and the endoscopic examination should be kept short. The median errors found in this study are comparable to acceptable levels of uncertainty in deformable CT registration. Large errors are possible even when image alignment is very good, indicating that projective measurements must be made carefully to avoid these outliers.
The Role of Secondary Packaging on Brand Awareness: Analysis of 2 L Carbonated Soft Drinks in Reusable Shells Using Eye Tracking Technology
Authors: Hurley Rupert Andrew , Rice Julie Christine , Koefelda Jerry , Congdon Robert , Ouzts Andrew 
Published: May 2017

Even with new technologies emerging daily that reduce the barriers to identify and purchase products, the average consumer still reports having less time to devote to shopping. A study conducted at Clemson University, sponsored by a reusable packaging company, Rehrig Pacific Company, investigated if a unique shipping shell/crate design with on‐message and product branding (direct colour print onto the shell) increased brand awareness, attention and purchase intent when placed directly onto the retail shelf. Reusable packaging for 2 L bottles of carbonated soft drink packaged in proprietary reusable shells with a multicolour logo of the major US beverage company was chosen for the study. The branded proprietary reusable shell was evaluated against a standard reusable shell in the industry used by the same company. Testing was conducted using state‐of‐the‐art eye tracking hardware and CUshop™, a full immersion consumer retail experience laboratory. Data captured from 89 study participants indicated a strong preference for the new branded reusable shell. Statistical analysis demonstrated a 47% increase in eye fixations on the branded display and an increase in fixation duration, a measure of how long consumers looked at the display, of 34% (p < 0.05). More significantly, an increase in the visual saliency of the primary package, the 2 L bottle, was illustrated by an increase in fixation duration of 46% (p < 0.05) and an increase of the number of fixations of 54% (p < 0.01) when displayed in the branded reusable shell. Thus, results indicate that in‐store marketing incorporating a unique secondary packaging may lift brand awareness and increase purchase intent. Copyright © 2017 John Wiley & Sons, Ltd.
Research of the master–slave robot surgical system with the function of force feedback
Authors: Shi Yunyong , Zhou Chaozheng , Xie Le , Chen Yongjun , Jiang Jun , Zhang Zhenfeng , Deng Ze 
Published: May 2017

AbstractBackgroundSurgical robots lack force feedback, which may lead to operation errors. In order to improve surgical outcomes, this research developed a new master–slave surgical robot, which was designed with an integrated force sensor.MethodsThe new structure designed for the master–slave robot employs a force feedback mechanism. A six‐dimensional force sensor was mounted on the tip of the slave robot's actuator. Sliding model control was adopted to control the slave robot. According to the movement of the master system manipulated by the surgeon, the slave's movement and the force feedback function were validated.ResultsThe motion was completed, the standard deviation was calculated, and the force data were detected. Hence, force feedback was realized in the experiment.ConclusionsThe surgical robot can help surgeons to complete trajectory motions with haptic sensation.
Exploring daily affective changes in university students with a mindful positive reappraisal intervention: A daily diary randomized controlled trial
Authors: Pogrebtsova Ekaterina , Craig Jacqueline , Chris Alexandra , O'Shea Deirdre , González‐Morales M. Gloria 
Published: May 2017

AbstractBrief and cost‐effective interventions focused on emotion regulation techniques can buffer against stress and foster positive functioning. Mindfulness and positive reappraisal are two techniques that can mutually enhance one another to promote well‐being. However, research testing the effectiveness of interventions combining mindfulness and reappraisal is lacking. The current pilot examined the effect of a combined mindful‐reappraisal intervention on daily affect in a 5‐day diary study with 106 university students. Participants were randomized to a mindful‐reappraisal intervention (n = 36), a reappraisal‐only intervention (n = 34), or an active control activity (n = 36). All participants described a negative event each day but only reappraised the event in the intervention conditions. Using multilevel growth modelling, results indicated that negative affect in both interventions declined over 5 days compared to the control; however, there were no differences in the growth of positive affect. Compared to reappraisal‐only, the mindful‐reappraisal group reported overall lower daily negative affect and marginally higher daily positive affect over the 5‐day intervention. These findings suggest that brief daily practice combining mindfulness and positive reappraisal can be trained as a self‐regulatory resource to promote positive affect and buffer negative affect above and beyond reappraisal practice alone.
Conformational Dynamics of mRNA in Gene Expression as New Pharmaceutical Target
Authors: Endoh Tamaki , Sugimoto Naoki 
Published: May 2017

AbstractGene expression involves concurrent and consecutive events of unidirectional nature, such as transcription occurring from 5′ to 3′ end and translation from N to C terminus. Recent functional studies have shown the importance of kinetically coupled nucleic acid folding events that influence gene expression processes. For example, mRNA conformational dynamics during transcription and translation regulate gene expression and subsequent protein functionalization. The structure, stability, and kinetic properties of nucleic acids are sensitive to the intracellular molecular environment and can be regulated by using artificially developed molecules. Here, we review our current understanding of how mRNA conformational dynamics affect the consecutive and concurrent processes involved in gene expression and discuss how novel pharmaceutical agents designed to influence RNA conformational dynamics, could be developed to treat various diseases.
Voorjaarsvergadering NVU, 11 en 12 mei 2017, ’s-Hertogenbosch
Authors: van der Poel Henk G. 
Published: May 2017

Samenvatting
Vooralsnog vergt het stellen van de diagnose blaascarcinoom (BC) een invasieve urethrocystoscopie (UCS). Bovendien zijn de recidiefpercentages hoog, hetgeen leidt tot een hoge frequentie van controle-UCS. Er is behoefte aan een snelle, niet-invasieve test met goede sensitiviteit (SN), specificiteit (SP) en een goede negatief voorspellende waarde (NVW) voor de detectie van primair of recidiverend BC. De Xpert Bladder Assay detecteert in circa 90 minuten vijf verschillende mRNA’s in urine (CRH, IGF2, UPK1B, ANXA10 en ABL1) die verhoogd aanwezig zijn bij BC. Het doel van deze studie is hiervan de testeigenschappen te bepalen.
Nutrients required for phospholipid synthesis are lower in blood and cerebrospinal fluid in mild cognitive impairment and Alzheimer's disease dementia
Authors: van Wijk Nick , Slot Rosalinde E.R. , Duits Flora H. , Strik Marieke , Biesheuvel Egbert , Sijben John W.C. , Blankenstein Marinus A. , Bierau Jörgen , van der Flier Wiesje M. , Scheltens Philip , Teunissen Charlotte E. 
Published: May 2017

AbstractIntroductionSynaptic membrane formation depends on nutrients that fuel metabolic pathways for the synthesis of constituent phospholipids. Consequently, insufficient availability of such nutrients may restrict membrane formation and contribute to synaptic dysfunction in Alzheimer's disease (AD). We assessed whether blood and cerebrospinal fluid (CSF) concentrations of nutrients related to phospholipid synthesis differ among patients with AD, mild cognitive impairment (MCI), and control subjects.MethodsConcentrations of uridine, choline, folate, homocysteine, and other related metabolites were analyzed in paired blood and CSF samples from subjects selected from the Amsterdam Dementia Cohort with AD (n = 150; age, 66 ± 7 years; 37% female), MCI (n = 148; age, 66 ± 8 years; 37% female), and control subjects (n = 148; age, 59 ± 8 years; 38% female).ResultsAge‐ and gender‐adjusted analysis of variance revealed different concentrations of circulating uridine, choline, and folate and CSF uridine, folate, and homocysteine (allP < .05) among the three diagnostic groups. Post hoc pairwise comparison showed that subjects with AD had lower CSF uridine, plasma choline and higher CSF homocysteine concentrations, whereas subjects with MCI had lower plasma and CSF uridine, serum and CSF folate, and higher CSF homocysteine concentrations compared with control subjects (allP < .05), with differences ranging from −11 to +22%.DiscussionAD and MCI patients have lower levels of nutrients involved in phospholipid synthesis. The current observations warrant exploration of the application of nutritional strategies in the early stages of AD.
Simulation in Canadian postgraduate emergency medicine training – a national survey
Authors: Russell Evan , Hall Andrew Koch , Hagel Carly , Petrosoniak Andrew , Dagnone Jeffrey Damon , Howes Daniel 
Published: May 2017

AbstractObjectivesSimulation-based education (SBE) is an important training strategy in emergency medicine (EM) postgraduate programs. This study sought to characterize the use of simulation in FRCPC-EM residency programs across Canada.MethodsA national survey was administered to residents and knowledgeable program representatives (PRs) at all Canadian FRCPC-EM programs. Survey question themes included simulation program characteristics, the frequency of resident participation, the location and administration of SBE, institutional barriers, interprofessional involvement, content, assessment strategies, and attitudes about SBE.ResultsResident and PR response rates were 63% (203/321) and 100% (16/16), respectively. Residents reported a median of 20 (range 0–150) hours of annual simulation training, with 52% of residents indicating that the time dedicated to simulation training met their needs. PRs reported the frequency of SBE sessions ranging from weekly to every 6 months, with 15 (94%) programs having an established simulation curriculum. Two (13%) of the programs used simulation for resident assessment, although 15 (94%) of PRs indicated that they would be comfortable with simulation-based assessment. The most common PR-identified barriers to administering simulation were a lack of protected faculty time (75%) and a lack of faculty experience with simulation (56%). Interprofessional involvement in simulation was strongly valued by both residents and PRs.ConclusionsSBE is frequently used by Canadian FRCPC-EM residency programs. However, there exists considerable variability in the structure, frequency, and timing of simulation-based activities. As programs transition to competency-based medical education, national organizations and collaborations should consider the variability in how SBE is administered.
Uncertain Journeys: Return migration, home, and uncertainty for a displaced Kashmiri community
Authors: DATTA ANKUR 
Published: May 2017

AbstractThis article explores situations in which forced migrants revisit places and homes they had fled from, drawing on research carried out among Kashmiri Hindus, better known asPandits, who were displaced following the outbreak of conflict in Jammu and Kashmir in 1990. Due to the breakdown of law and order, selective attacks, and a climate of fear, most of the community had relocated from the Kashmir valley to the south in Jammu and to even cities such as New Delhi, constituting one of the most prominent groups of Internally Displaced Persons in the region. While there is an interest in repatriation/resettlement in scholarship and policy, the experiences of the Pandits reveal the multiple meanings ‘return’ holds for the displaced. This article will draw on the experiences of Pandit forced migrants in Jammu who have returned to visit Kashmir. Their experiences will be situated with work on return migration, the Kashmir conflict, and the political location of the Pandits in the region. The article argues that return migration is an inconclusive phenomenon that critically raises questions of home and uncertainty, and provides a way to understand how the displaced locate themselves in the world.
Appraising food insecurity
Authors: Coppin Géraldine 
Published: May 2017

AbstractThis commentary focuses on the mechanisms underlying the appraisal of food insecurity. I first describe what appraisal is and why it plays a major role in explaining how different individuals consider food supply as more or less secure. I then describe the potential reciprocal links between appraisal and obesity, based on the well-documented evidence that obesity can cause cognitive deficits.
Toward a mechanistic understanding of the impact of food insecurity on obesity
Authors: Dohle Simone , Hofmann Wilhelm 
Published: May 2017

AbstractNettle et al. provide a useful but incomplete analysis of the drivers of obesity. In this commentary, we argue that a dual-motives conceptualization of self-control, together with insights from the psychology of (perceived and actual) scarcity, might help advance a more fine-grained mechanistic understanding of the observed association between food insecurity and obesity.