bluuebunny/crossref_metadata_2025_split huggingface dataset:
GDSoC: Green dynamic self‐optimizing content caching in ICN‐based 5G network
Authors: Yang Shujie , Qiu Xuesong , Xie Haiyong , Guan Jianfeng , Liu Yang , Xu Changqiao 
Published: August 2017

AbstractFifth‐generation (5G) networks expect to see explosive growth of mobile data. In this context, 5G information‐centric networking (5G‐ICN) architecture is proposed to provide native support for this trend. However, because of the huge amount of energy consumed by high‐density data and extremely dynamic network topology in 5G networks, the current content caching strategies (CCSs) in ICN are not appropriate in 5G‐ICN architecture. In this paper, through balancing the trade‐off between data caching energy consumption and data transport energy consumption, an optimization problem is formulated with the consideration of dynamic network topology. By leveraging a dynamic self‐optimization algorithm, the formulated optimization problem is solved and the green dynamic self‐optimizing in‐network CCS (GDSoC) is therefore proposed. To demonstrate the performance of GDSoC, extensive simulations are performed in terms of caching hit ratio and energy consumption based on different network topologies (including CERNET, GÉANT, and Abilene topologies) through comparing with several well‐known caching strategies.
MABO‐TSCH: Multihop and blacklist‐based optimized time synchronized channel hopping
Authors: Gomes Pedro Henrique , Watteyne Thomas , Krishnamachari Bhaskar 
Published: August 2017

AbstractEmerging Industrial Internet of Things applications, such as smart factories, require reliable communication and robustness against interference from colocated wireless systems. To address these challenges, frequency‐hopping spread spectrum has been used by different protocols, including IEEE802.15.4‐2015 TSCH. Frequency‐hopping spread spectrum can be improved with the aid of blacklists to avoid bad frequencies. The quality of channels in most environments shows significant spatial‐temporal variation, which limits the effectiveness of simple blacklisting schemes. In this article, we propose an enhanced blacklisting solution to improve the TSCH protocol. The proposed algorithms work in a distributed fashion, where each pair of receiver/transmitter nodes negotiates a local blacklist, based on the estimation of packet delivery ratio. We model the channel quality estimation as a multiarmed bandit problem and show that it is possible to create blacklists that provide results close to optimal without any separate learning phase. The proposed algorithms are implemented in OpenWSN and evaluated through simulations in 2 different scenarios with about 40 motes and experiments using an indoor testbed with 40 TelosB motes.
Time series forecasting using evolutionary neural nets implemented in a volunteer computing system
Authors: Rivas V.M. , Parras‐Gutiérrez E. , Merelo J.J. , Arenas M.G. , García‐Fernández P. 
Published: August 2017

SummaryjsEvRBF is a time‐series forecasting method based on genetic algorithm and neural nets. Written in JavaScript language, can be executed in most web browsers. Consequently, everybody can participate in the experiments, and scientists can take advantage of nowadays available browsers and devices as computation environments. This is also a great challenge as the language support and performance varies from one browser to another. In this paper, jsEvRBF has been tested in a volunteer computing experiment, and also in a single‐browser one. Both experiments are related to forecasting currencies exchange, and the results show the viability of the proposal.
Low density polyethylene functionalized with antibiofilm compounds inhibits Escherichia coli cell adhesion
Authors: Dell'orto Silvia , Cattò Cristina , Villa Federica , Forlani Fabio , Vassallo Espedito , Morra Marco , Cappitelli Francesca , Villa Stefania , Gelain Arianna 
Published: August 2017

AbstractThe present work concerns an efficient strategy to obtain novel medical devices materials able to inhibit biofilm formation. The new materials were achieved by covalent grafting of p‐aminocinnamic or p‐aminosalicylic acids on low density polyethylene coupons. The polyethylene surface, previously activated by oxygen plasma treatment, was functionalized using 2‐hydroxymethylmetacrylate as linker. The latter was reacted with succinic anhydride affording the carboxylic end useful for the immobilization of the antibiofilm molecules. The modified surface was characterized by scanning electron microscope, X‐ray photoelectron spectroscopy, attenuated total reflectance Fourier transform infrared and fluorescence analyses. The antibiofilm activity of the modified materials were tested against Escherichia coli biofilm grown in the Center of Disease Control biofilm reactor. The results revealed that the grafted cinnamic and salicylic acid derivatives reduced biofilm biomass, in comparison with the control, by 73.7 ± 10.7% and 63.4 ± 7.1%, respectively. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 3251–3261, 2017.
Effect of fed‐batch and semicontinuous regimen on Nannochloropsis oculata grown in different culture media to high‐value products
Authors: Martínez‐Macías Rosario , Meza‐Escalante Edna , Serrano‐Palacios Denisse , Gortáres‐Moroyoqui Pablo , Ruíz‐Ruíz Patricia Elizabeth , Ulloa‐Mercado Gabriela 
Published: August 2017

AbstractBACKGROUNDHigh cell density in cultures of microalgae is a key factor to recover biomass and extract metabolites of interest. A fed batch tubular reactor (FBTR) and semi‐continuous reactor (SCR) with f/2 Guillard Medium (f/2GM) and algal medium (AM) were evaluated. Both modes were operated under completely defined conditions to assess their effect on cell density, and lipid, protein and carbohydrate productivity of the microalgae Nannochloropsis oculata.RESULTSResults show that the FBTR promotes the highest cell density for both culture media, achieving 525 ± 1.84×106 cell mL‐1. With AM in the SCR, specific growth rate, productivities of biomass and lipids were the highest, as well as content of protein (48%), lipid (52.1%) and carbohydrates (17%). No significant differences were found in saturated fatty acids composition, whereas unsaturated fatty acids composition was affected by the operating regimen, this being higher in the FBTR.CONCLUSIONThe use of AM in both operating modes, FBTR and SCR, increased the cell density and improved the lipid content of N. oculata. A good option would be to combine both culture modes; first, use the FBTR to obtain high cell densities and then apply the SCR mode to increase lipid productivity; finally, an important quantity of high‐value products could be recovered. © 2017 Society of Chemical Industry
Harnessing soybean hulls for improved polygalacturonase production by Aspergillus sojae through fine‐tuning of ambient pH
Authors: Fratebianchi Dante , Acosta Marina Alejandra , Cavalitto Sebastián Fernando 
Published: August 2017

AbstractBACKGROUNDSoybean hulls result from the processing of the bean for producing oil and protein products. This by‐product generated massively in America has virtually no commercial value, so substantial effort is being applied to its exploitation for generating value‐added goods. This work evaluates soybean hulls as inducer of the production of pectinolytic enzymes, through optimization studies regarding polygalacturonase production by Aspergillus sojae in submerged cultures.RESULTSA 2‐fold improvement in polygalacturonase yield was found by varying the initial pH of the culture in a very narrow acid pH range (2.40–2.80). The optimized fermentation process was successfully transferred to stirred‐tank bioreactors in terms of volumetric productivity, and final polygalacturonase yields were 42 U mL‐1 and 1.39 U g‐1 soybean hulls, which are among the highest reported with this by‐product. Morphological characterization of A. sojae during cultivation showed that the fungus mainly developed in dispersed mycelia at initial pH of 2.40–2.80 while, conversely, fungal pellets predominated in cultures performed at initial pH of 5.40.CONCLUSIONHigh enzyme titers are possibly connected to the formation of dispersed mycelia, as well as to acid‐induced expression of the respective gene/s. It is foreseen that this data will be helpful regarding the production of fungal pectinases or other acid‐induced enzymes. © 2017 Society of Chemical Industry
Relative cerebral blood volume is a potential biomarker in late delayed radiation‐induced brain injury
Authors: Xie Ying , Huang Haiwei , Guo Junjie , Zhou Dongxiao 
Published: August 2017

PurposeTo assess whether relative cerebral blood volume (rCBV) can provide information to reliably evaluate the stages of late delayed radiation‐induced brain injury.Materials and MethodsForty patients diagnosed with late delayed radiation‐induced brain injury were enrolled. The patients were examined using a 1.5T magnetic resonance imaging (MRI) system equipped with an 8‐channel head coil. An echo planar imaging (EPI) sequence was used in perfusion‐weighted imaging (PWI). The location of 1H‐MR spectroscopy scanning was acquired by a point‐resolved spectroscopy sequence. Lesions of the temporal lobe were divided into one of two groups according to rCBV value: rCBV<1 (low rCBV [group 1; n = 45]); and rCBV>1 (elevated rCBV [group 2; n = 14]). PWI and MRS parameters, as well as morphological lesion types, in these two groups were compared. Morphological severity was assessed independently and agreed on by two imaging specialists (J.L. and H.X.S., with 16 and 24 years' experience, respectively). If necessary, a third imaging professor (Z.M.H.) with 30 years' experience resolved disagreement(s). Standards for evaluating morphological lesion types were based on previously published criteria. After testing the skewness of data, the Mann–Whitney U‐test or Student's t‐test was used, as appropriate.ResultsrCBV, relative cerebral blood flow (rCBF), and relative mean transit time (rMTT) in group 2 (n = 14) were significantly higher than in group 1 (n = 45) (rCBV: 1.21 ± 0.38 vs. 0.72 ± 0.32, respectively; P < 0.001; rCBF: 1.13 ± 0.02 vs. 0.74 ± 0.04, respectively; P < 0.001; rMTT: 1.10 ± 0.26 vs. 0.96 ± 0.20, P < 0.001). The levels of choline‐containing compounds (CHO) / creatine (Cr) and CHO/N‐acetylaspartate (NAA) in group 1 were significantly greater than in group 2 (CHO/Cr: 1.89 ± 1.83 vs. 1.22 ± 1.31, respectively; P = 0.016; CHO/NAA: 1.85 ± 3.50 vs. 1.17 ± 0.75, respectively; P = 0.022). More severe morphological lesions were present in lesions with low rCBV compared with elevated rCBV (overall severity: 7.00 ± 4.25 vs. 5.00 ± 5.13, respectively; P = 0.029).ConclusionElevated rCBV accompanied by a more conservative metabolic pattern and milder lesion(s) may represent a less advanced stage in the development of late delayed radiation‐induced brain injury.Level of Evidence: 4Technical Efficacy: Stage 3J. Magn. Reson. Imaging 2018;47:1112–1118.
Sea surface temperature variability along the Portuguese coast since 1950
Authors: Baptista Vânia , Silva Patrícia Laginha , Relvas Paulo , Teodósio M. Alexandra , Leitão Francisco 
Published: August 2017

ABSTRACTOverall an increase in sea surface temperature (SST) has been recorded over the last century. However, changes in SST are not homogeneous across the ocean. Most studies focus on the processes and mechanisms setting SST variability across broad scales and neglect changes occurring at a regional scale. So, this study aims to describe annual, seasonal and monthly time‐series trends in SST along the Portuguese coast, compare trends among areas (Northwest, Southwest and South), quantify SST increase rates and SST time‐series discontinuities. Time‐series analyses showed that SST has the same annual and monthly trend regardless of the area and data sets used (ICOADS: 1950–2010; Satellite data: 1985–2010). SST increased in the three areas: +0.1 °C decade−1 in Northwestern and Southwestern coasts (the same than global average), +0.2 °C decade−1 in the Southern coast. The higher monthly SST increment rates were observed in spring and summer (satellite data: +0.4 °C decade−1 in June in Northwest; +0.4 °C decade−1 in April in Southwest; +0.5 °C decade−1 in June in South). Discontinuities, that is, sudden shifts in time‐series, were observed after 1987, 1995 and 1982–1983 in the Northwest, Southwest and Southern areas, respectively. Overall, this study reinforces the hypothesis that SST varies regionally; so, studies assessing the impacts inherent to climate change along coastal areas, namely fisheries variability, ought to have this perspective into account.
Effects of combined teriparatide and zoledronic acid on posterior lumbar vertebral fusion in an aged ovariectomized rat model of osteopenia
Authors: Yishake Mumingjiang , Yasen Miersalijiang , Jiang Libo , Liu Wangmi , Xing Rong , Chen Qian , Lin Hong , Dong Jian 
Published: August 2017

ABSTRACTThere has been no study regarding the effect of a combination of teriparatide (TPTD) and zoledronic acid (ZA) on vertebral fusion. In this study, we investigate the effect of single and combined TPTD and ZA treatment on lumbar vertebral fusion in aged ovariectomized (OVX) rats. Sixty two‐month‐old female Sprague‐Dawley rats were ovariectomized and underwent bilateral L4–L5 posterolateral intertransverse fusion after 10 months. The OVX rats received vehicle (control) treatment, or ZA (100 µg/kg, once), or TPTD (60 µg/kg/2 d for 42 d), or ZA + TPTD until they were euthanized at 6 weeks following lumbar vertebral fusion. The lumbar spine was harvested. Bone mineral density (BMD), bone fusion, bone volume (BV), and bone formation rate (BFR)were analyzed by dual‐energy X‐ray absorptiometry (DXA), radiography, micro‐computed tomography, and histomorphometry. Compared with vehicle (control) treatment, ZA and TPTD monotherapy increased bone volume (BV) at fusion site, and ZA + TPTD combined therapy had an additive effect. Treatment with TPTD and ZA + TPTD increased the bone fusion rate when compared with the control group. ZA monotherapy did not alter the rate of bone fusion. The TPTD and ZA + TPTD treatment groups had increased mineral apposition rate (MAR), mineralizing surfaces/bone surface ((MS/BS), and BFR/BS compared with the OVX group. Our experiment confirm that the monotherapy with TPTD and combination therapy with ZA + TPTD in an OVX rat model of osteopenia following lumbar vertebral fusion surgery increased bone fusion mass and bone fusion rate, and ZA + TPTD combined therapy had an additive effect on bone fusion mass. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:937–944, 2018.
Heat treatment as postharvest tool for improving quality in extra‐early nectarines
Authors: Falagán Natalia , Artés Francisco , Aguayo Encarna 
Published: August 2017

AbstractBACKGROUNDExtra‐early nectarine cultivars such as ‘VioWhite 5’ could present a lack of organoleptic and nutritional quality. Heat treatments (HT) can be applied to improve their primary characteristics. In this experiment, control (non‐treated), HT1 (3 h; 45 °C) and HT2 (2 h; 50 °C) were studied. Fruit were stored (10 days; 0 ± 0.5 °C; 90–95% RH) followed by a simulated retail sale period (3 days; 15 °C; 70–75% RH).RESULTSHT fruit showed higher weight loss (2.76 ± 0.06% and 3.32 ± 0.01% for HT1 and HT2, respectively; vs. 2.23 ± 0.14% for control) and lower firmness than control samples (28.88% and 21.67% less for HT1 and HT2, respectively). HT treatments induced an increase in soluble solids content and a decrease in total acidity, which led to a better sensory quality. These changes were positively received by consumers. Total antioxidant capacity was enhanced by HT due to an increase in phenolic compound content. A higher enzymatic activity was found in pectin methylesterase and polygaracturonase in HT nectarines when compared to control.CONCLUSIONThe application of HT on extra‐early nectarine cv. demonstrated a strong potential to improve consumption quality in the industry. © 2017 Society of Chemical Industry
Rewarding customers who keep a product: How reinforcement affects customers' product return decision in online retailing
Authors: Gelbrich Katja , Gäthke Jana , Hübner Alexander 
Published: August 2017

AbstractA lenient product return policy represents the status quo of current return management practice in online retailing because it increases customers' order tendency. However, at the same time, many customers tend to return products under this policy, which incurs considerable costs for retailers. The present research introduces a keep reward (i.e., providing incentives to keep a product) as a new promotion strategy to improve the conventional lenient policy. Drawing on operant conditioning, the authors propose and test the reinforcing effect of a keep reward on customers' keep decision, compared to the conventional lenient policy. Results of a qualitative pilot study suggest that a keep reward is generally feasible in online retailing practice, especially in the low‐ to mid‐price segment and with rewards that are linked to future purchases. Two experimental studies verify the positive effect of a keep reward. Study 1 shows that it substantially increases keep intention compared to a conventional lenient policy. Study 2 shows that the effect on keep intention is moderated by customers' online shopping frequency, and this moderating effect is mediated by repurchase intention. In particular, the keep reward is most effective among frequent shoppers because they are more inclined to repurchase and thus, benefit from the reward. In summary, both studies support the keep reward as a valuable add‐on to the conventional lenient policy because order intention remains comparably high, while keep intention is higher. Theoretical implications and recommendations for online retailers on how to implement a keep reward in different industries are discussed.
Understanding the role of social influence in piquing curiosity and influencing attitudes and behaviors in a social network environment
Authors: Thomas Veronica L. , Vinuales Gema 
Published: August 2017

AbstractSocial networks provide an innovative means for facilitating social influence as well as arousing consumer curiosity. However, research on how social influence impacts attitudes and behaviors in this context is limited. Further, even less research exists examining how curiosity impacts consumers’ behaviors, which is concerning since curiosity may be especially relevant in an online setting. To overcome these gaps, two studies were conducted which demonstrate that a consumer's curiosity toward a social network post is influenced by the group membership of the individual who created the post. In turn, curiosity leads to more positive attitudes toward the experience described or represented in the post, which leads to higher intentions to undertake that experience. Additionally, consumer susceptibility to interpersonal influence is found to moderate the relationship between group membership and curiosity. If susceptibility to interpersonal influence is strong enough, content posted by a dissociative group member can also arouse curiosity and positively influence attitudes and behavioral intentions.
Branding with the in–out effect: The impact of consonantal articulation on brand evaluation
Authors: Godinho Sandra , V. Garrido Margarida 
Published: August 2017

AbstractRecent research has shown that mouth movements, produced even during silent reading, can affect stimulus evaluation. Words featuring systematic wanderings of consonantal stricture spots ranging from the front to the rear of the mouth (inward) are preferred to words with wanderings in the opposite direction (outward). In four experiments, the authors extended this in–out effect from a basic laboratory setting to a more ecologically relevant domain and examined the boundary conditions of possible applications to marketing. In this research, the inward/outward words presented were embedded in common brand imagery such as labels, logos, and product packages. Either with plain graphic information or with more visually informative packaging, inward names were always preferred (all p‐values < 0.001). These results indicate that concurrent information that competitively feeds into the preference judgment did not have diagnostic value when compared to the articulation direction. Such prevalence of the effect even when embedded in more complex stimulus emphasizes the relevance of investigating oral kinematics effects and the need to further research other sensorimotor phenomena in consumer behavior.
Spine surface detection from local phase‐symmetry enhanced ridges in ultrasound images
Authors: Shajudeen Peer Mohamed S. , Righetti Raffaella 
Published: August 2017

PurposeImproper administration of epidural anesthesia can result in nerve complications. This problem is exacerbated for obese patients whose vertebrae cannot be palpated. Ultrasound (US) has recently emerged as an attractive imaging modality for accurate epidural placement. However, anesthesiologists untrained in US have difficulty interpreting the anatomy in noisy spinal US images. Furthermore, the complex geometry in spinal US images is characterized by a discontinuous intensity profile because the transducer is often not perpendicularly oriented to spine surface regions such as laminae, articular and transverse processes. This makes the interpretation of spinal images more challenging than typical long bone surface images. In this article, we propose a new method to segment the spine anatomy in US images obtained in both the transverse and paramedian planes.MethodsA set of 108 B‐mode images were randomly chosen from 35 cine loops obtained from scanning the lumbar and thoracic vertebrae of 17 healthy volunteers with a BMI ranging from 19.5 to 27.9. A local phase‐symmetry technique was applied to the B‐mode images for enhancement of bone‐like ridges, and the spine blobs were subsequently classified. The segmented spine surface from the blobs was compared against a radiologist's manual delineation of the spine surface.ResultsFor the performance of the spine blob classifier, we obtain a Matthews Correlation Coefficient (MCC) of 0.77 and a geometric mean (G‐mean) of 0.96. The mean absolute error between the manual delineation of the laminae by the radiologist and the automatic laminae segmentation is found to be 0.26 mm with a maximum possible absolute error of 2.01 mm for spinal US images of 70 mm depth.ConclusionsOur proposed technique successfully performs automatic segmentation of the spine surface — specifically the laminae, ligamentum flava, spinous, transverse, and articular processes — and can be extended to any bone anatomy present in an US image. This has implications for 3D visualization of bone surfaces and, without loss of generality, the vertebral column.