bluuebunny/crossref_metadata_2025_split huggingface dataset:
Extra-gradient methods for solving split feasibility and fixed point problems
Authors: Chen Jin-Zuo , Ceng Lu-Chuan , Qiu Yang-Qing , Kong Zhao-Rong 
Published: October 2015

AbstractThe purpose of this paper is to study the extra-gradient methods for solving split feasibility and fixed point problems involved in pseudo-contractive mappings in real Hilbert spaces. We propose an Ishikawa-type extra-gradient iterative algorithm for finding a solution of the split feasibility and fixed point problems involved in pseudo-contractive mappings with Lipschitz assumption. Moreover, we also suggest a Mann-type extra-gradient iterative algorithm for finding a solution of the split feasibility and fixed point problems involved in pseudo-contractive mappings without Lipschitz assumption. It is proven that under suitable conditions, the sequences generated by the proposed iterative algorithms converge weakly to a solution of the split feasibility and fixed point problems. The results presented in this paper extend and improve some corresponding ones in the literature.
Damage function for historic paper. Part I: Fitness for use
Authors: Strlič Matija , Grossi Carlota M. , Dillon Catherine , Bell Nancy , Fouseki Kalliopi , Brimblecombe Peter , Menart Eva , Ntanos Kostas , Lindsay William , Thickett David , France Fenella , De Bruin Gerrit 
Published: October 2015

Abstract

Background
In heritage science literature and in preventive conservation practice, damage functions are used to model material behaviour and specifically damage (unacceptable change), as a result of the presence of a stressor over time. For such functions to be of use in the context of collection management, it is important to define a range of parameters, such as who the stakeholders are (e.g. the public, curators, researchers), the mode of use (e.g. display, storage, manual handling), the long-term planning horizon (i.e. when in the future it is deemed acceptable for an item to become damaged or unfit for use), and what the threshold of damage is, i.e. extent of physical change assessed as damage.

Results
In this paper, we explore the threshold of fitness for use for archival and library paper documents used for display or reading in the context of access in reading rooms by the general public. Change is considered in the context of discolouration and mechanical deterioration such as tears and missing pieces: forms of physical deterioration that accumulate with time in libraries and archives. We also explore whether the threshold fitness for use is defined differently for objects perceived to be of different value, and for different modes of use. The data were collected in a series of fitness-for-use workshops carried out with readers/visitors in heritage institutions using principles of Design of Experiments.

Conclusions
The results show that when no particular value is pre-assigned to an archival or library document, missing pieces influenced readers/visitors’ subjective judgements of fitness-for-use to a greater extent than did discolouration and tears (which had little or no influence). This finding was most apparent in the display context in comparison to the reading room context. The finding also best applied when readers/visitors were not given a value scenario (in comparison to when they were asked to think about the document having personal or historic value). It can be estimated that, in general, items become unfit when text is evidently missing. However, if the visitor/reader is prompted to think of a document in terms of its historic value, then change in a document has little impact on fitness for use.
Drastically Improved Durability and Efficiency of Silicon Solar Cells Using Hyper-Stable Lanthanide Coordination Polymer Beads
Authors: Kataoka Hisataka , Nakanishi Takayuki , Omagari Shun , Takabatake Yu , Kitagawa Yuichi , Hasegawa Yasuchika 
Published: October 2015

Abstract
Remarkable improvements of environmental durability and energy conversion efficiency in silicon solar cells were achieved using ethylene vinyl acetate (EVA) protection film containing poly(methyl methacrylate) (PMMA) polymer beads (PB), which includes hyper-stable luminescent lanthanide coordination polymer [Eu(hfa)3(dpbp)]n (hfa: hexafluoroacetylacetonate, dpbp: 4,4′-bis(diphenylphosphoryl)biphenyl). The shape of PB including [Eu(hfa)3(dpbp)]n (PB-[Eu(hfa)3(dpbp)]n) was observed with SEM. Luminescence performance of EVA protection films including PB-[Eu(hfa)3(dpbp)]n or related lanthanide complexes (previously reported [Eu(hfa)3(dpbp)]n powder, Tb(hfa)3(TPPO)2, Eu(hfa)3(TPPO)2, and Yb(hfa)3(TPPO)2, TPPO: triphenylphosphine oxide) were characterized using emission spectroscopy, quantum yields, and lifetimes. Their durability were evaluated using photophysical measurements after degradation test (85 °C 85% RH). The durability of PB-[Eu(hfa)3(dpbp)]n in EVA film was estimated to be twenty-five years, which is much longer than those of previous lanthanide complexes. The temperature dependency of emission spectra of PB-[Eu(hfa)3(dpbp)]n confirmed that the luminescence properties are maintained even at high temperatures up to 120 °C. Increased value of the solar cell short-circuit current efficiency using EVA protection film containing PB-[Eu(hfa)3(dpbp)]n was found to be 1.1%, which is a drastic increase as a photovoltaic solar system. The EVA protection films with PB-[Eu(hfa)3(dpbp)]n are effective for enhancing the performance of silicon solar cells.
Essential metals and phenolic acids in commercial herbs and spices. Multivariate analysis
of correlations among them
Authors: Arceusz Agnieszka , Wesolowski Marek 
Published: October 2015

Abstract
The purpose of this study was to show relationships among the levels of essential metals (zinc, iron, sodium, magnesium, calcium and potassium) and phenolic acids (caffeic, chlorogenic, ferulic, gallic, rosmarinic and syringic) in commercial herbs (lemon balm, thyme, rosemary, mint, sage and angelica) and spices (caraway, lovage, hyssop and oregano). In the herbs higher quantities of metals and phenolic compounds were found than in spices. All plants contained high levels of calcium, potassium and rosmarinic acid, but low levels of zinc and gallic acid. By using principal component and hierarchical cluster analyses several clusters were identified grouping samples originating from a plant of a particular botanical species. Multivariate analysis has also shown that the contents of phenolic acids had a stronger impact on the scattering of herbs and spices than the metals levels. Furthermore, statistically significant correlations were found between calcium and ferulic, gallic, rosmarinic and syringic acids as well as between zinc and sodium and caffeic acid. This suggests co-operate between these biologically active constituents in metabolic processes occurring in plants.
Development and validation of the simple
and sensitive spectrophotometric method
of sulphanilamides determination with
4-(2-thiazolylazo)-resorcinol in veterinary preparations
Authors: Smolinska Maria , Korkuna Olha , Vrublevska Teodoziya , Rudchuk Petro , Teslyar Grigory 
Published: October 2015

Abstract
New simple, rapid, and accurate spectrophotometric techniques for sulphanilamides assay in combination drugs have been elaborated. The method is based on the formation of coloured products of sulphanilamides diazonium salt azoсoupling with heterocyclic azo reagent 4-(2-thiazolylazo)-resorcinol (TAR) in alkaline medium (pH 9.5) with the following measurement of their absorbance at λmax = 615 nm. Formed products are stable for 1 hour at room temperature. Effective molar absorptivities at absorbance maximum 615 nm for disazo dyes were ~ 104 M-1 cm-1. Linear ranges for sulphanilamides determination were 0.5−30.0 μg mL-1. The developed method was used for the suphanilamides determination in tablets, powder, solutions, suspensions and ointments.
Damage Evaluation in Shear-Critical Reinforced
Concrete Beam using Piezoelectric Transducers as
Smart Aggregates
Authors: Chalioris Constantin E. , Papadopoulos Nikos A. , Angeli Georgia M. , Karayannis Chris G. , Liolios Asterios A. , Providakis Costas P. 
Published: October 2015

Abstract
Damage detection at early cracking stages in
shear-critical reinforced concrete beams, before further
deterioration and their inevitable brittle shear failure
is crucial for structural safety and integrity. The effectiveness
of a structural health monitoring technique using
the admittance measurements of piezoelectric transducers
mounted on a reinforced concrete beam without
shear reinforcement is experimentally investigated.
Embedded “smart aggregate” transducers and externally
bonded piezoelectric patches have been placed in arrays
at both shear spans of the beam. Beam were tested till total
shear failure and monitored at three different states;
healthy, flexural cracking and diagonal cracking. Test results
showed that transducers close to the critical diagonal
crack provided sound and graduated discrepancies between
the admittance responses at the healthy state and
thedamage levels.Damage assessment using statistical indices
calculated from the measurements of all transducers
was also attempted. Rational changes of the index values
were obtained with respect to the increase of the damage.
Admittance responses and index values of the transducers
located on the shear span where the critical diagonal
crack formed provided cogent evidence of damage. On the
contrary, negligible indication of damage was yielded by
the responses of the transducers located on the other shear
span, where no diagonal cracking occurred.
Determination of log moisture content using ground penetrating radar (GPR). Part 1. Partial least squares (PLS) method
Authors: Hans Guillaume , Redman David , Leblon Brigitte , Nader Joseph , La Rocque Armand 
Published: October 2015

Abstract
Ground penetrating radar (GPR) is a handheld system showing good potential for the real-time and nondestructive characterization of wood moisture content (MC). However, measurements performed over logs can be challenging because of their curved surface that can affect the GPR signal. In this study, the MC of thawed and frozen logs was estimated for three species (quaking aspen, balsam poplar, and black spruce) using the full GPR signals and the partial least squares (PLS) regression method. The signal was acquired from the cross-section (CS) and through the bark (TB) of the logs with and without an aluminum plate placed under the log. The full GPR signal does not provide better log MC prediction accuracy for small logs compared with the early-time GPR signal. The information about the shape and diameter of the log is contained in the direct and reflected waves of the GPR signal. CS models provided more accurate log MC prediction (RMSEv=7–25%) than TB models (RMSEv=6–40%) for the hardwood species. Thawed and frozen log models showed similar performances. This study demonstrates that GPR in combination with PLS regression is suitable for predicting log MC in the field.
Evaluation of Anticorrosion Performance of New Materials for Alternative Superheater Tubes in Biomass Power Plants
Authors: Li Yuchun , Zhang Hongliang , He Yuwu 
Published: October 2015

AbstractOne way of controlling alkali chloride-induced corrosion in biomass boilers is by designing new alloy materials used as superheater tubes. Four newly designed Cr–Ni alloy was designed and studied for applicability in biomass power plants. High-temperature oxidation experiments and high-temperature corrosion experiments were carried out for evaluation material characterization. Through analysis and discussion of the corrosion kinetics and oxidation kinetics, it can be concluded that materials with series number of “2xx” and “3xx” had better endurance ability in KCl environment under 650°C and 700°C than TP316 material. In the same conditions, 3xx material had better anticorrosion ability in 700°C with KCl environment.
Effect of Blender and Blending Time on Color and Aroma Characteristics of Juice and Its Freeze-Dried Powder of Pandanus amaryllifolius Roxb. Leaves (Pandan)
Authors: Sowndhararajan Kandhasamy , Chin Nyuk Ling , Yusof Yus Aniza , Lai Lee Ling , Mustapha Wan Aida Wan 
Published: October 2015

Abstract
The color and aroma properties of Pandanus amaryllifolius Roxb. leaves (pandan) were studied by mechanical extraction using normal and turbo blade blenders under different blending times (60–180 s). The extracted juice was freeze-dried into powders and its aroma components were measured in a solid-phase microextraction using gas chromatography/mass spectrometry (SPME-GC/MS) analysis. The turbo blade blender provided maximum color pigment of greenness and yellowness at blending time of 90 s as compared to the normal blender that required 180 s. In GC-MS analysis, the major component, 2-acetyl-1-pyrroline, was found to be one time higher in the freeze-dried pandan juice samples obtained from turbo blade blender than normal blender. Other components including the cis-3-hexanal, 2-methylene-4-pentenenitrile and 1,2,4-trimethylbenzene were also detected in the samples. In conclusion, the turbo blade blender is more effective than normal laboratory blender in terms of color extraction, particle size reduction and the aroma retention.
Increasing Protease Activities and Antioxidant Properties of Koji for Soy Sauce Brewing by Adding a Medicinal Herb Rhodiola rosea
Authors: Xue-jun Lei , Zheng-yun Wu , Chao-yi Cui , Jun Yang , Wen-xue Zhang 
Published: October 2015

Abstract

Koji preparation is the key step in soy sauce brewing. In this study, 21 medicinal herbs were tested for their abilities in enhancing the protease activities of soy sauce koji. Among these herbs Rhodiola rosea was found to be the most efficient in increasing protease activities. Kinetic analyses revealed that R. rosea addition not only promoted microbe growth and increase the activities of neutral and acid proteases (by 29.8% and 13.4%, respectively) but also elevated α-diphenyl-β-picrylhydrazyl (DPPH) radical scavenging activity and total phenolics and flavonoids (by 9.5%, 47.1% and 14.1%, respectively); the formations of proteases and antioxidant properties depend largely on microbe growth; and the promotion effects of R. rosea addition were mainly displayed in later stage of fermentation. Using the R. rosea koji for soy sauce production resulted in 8.9%, 19.1%, 6.6%, 23% and 102% higher of total and amino-type nitrogen contents, protein utilization, total phenolics and flavonoids, respectively.
Phytochemical, sub-acute toxicity, and antibacterial evaluation of Cordia sebestena leaf extracts
Authors: Osho Adeleke , Otuechere Chiagoziem A. , Adeosun Charles B. , Oluwagbemi Tolu , Atolani Olubunmi 
Published: October 2015

Abstract

Background: In Nigeria, Cordia sebestena (Boraginaceae), an understudied medicinal plant, is used in traditional medicine for the treatment of gastrointestinal disorders. In this study, we investigated the chemical composition, antibacterial potential, and sub-acute toxicity of C. sebestena leaves.

Methods: Ethyl acetate extracts were analyzed using thin layer chromatography (TLC) and Fourier transform infrared (FTIR) spectrophotometry. The antibacterial potential of the extracts was tested against five standard bacteria, namely Bacillus cereus, Bacillus subtilis, Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. Clinical observations and blood parameters were used to evaluate the possible toxicity of C. sebestena.

Results: The TLC profile yielded 39 fractions, which were pooled to nine combined sub-fractions (A–I). The FTIR spectrum of sub-fraction H indicated the presence of aliphatic C-H stretching vibration at 2922 and 2850 cm−1, C=O stretch at 1734 and 1708 cm−1, and C=C stretch of aromatics and aliphatics at 1464 and (shoulder) 1618 cm−1, respectively. The fractions of the C. sebestena ethyl acetate leaf extract showed antibacterial potential across board, but fraction H had the highest antibacterial activity against B. cereus and S. aureus. The study also indicated the relatively low toxicity profile of the ethyl acetate leaf extract of C. sebestena in the liver of rats.

Conclusions: The study showed that C. sebestena leaves have strong antibacterial potential and low toxicity, thereby underlying the scientific basis for their folkloric use in the management of microbial infections and its associated complications.
Composite structure of vortices in two-component
Bose-Einstein condensate
Authors: Ivashin Anatoly P. , Poluektov Yuri M. 
Published: October 2015

Abstract
In contrast to one-component Bose-Einstein condensate
case, the vortices in two-component condensate
can have various complicated structures. The vortices in a
space-homogeneous Bose-Einstein condensate have been
studied in this paper. It is shown that the vortex structure
is described by three dimensionless parameters. This is totally
different from the usual one-component condensate
case,where an isolated vortex is described by a parameterless
dimensionless equation. The two-component vortex
structure strongly depends on the sign of “interaction”
constant of the components. A few types of vortices with
different qualitative structure are explored. We show that
the “super-density vortices” can exist, when the “interaction”
constant is positive. The “super-density vortices”
have the near-axis density greater than the equilibrium
density of a homogeneous space Bose-Einstein condensate.
We also show that the vortices with opposite direction
of the condensate component rotation near the axis
and far off the axis can exist.
Random fixed point theorems based on orbits of random mappings with some applications to random integral equations
Authors: Prakasa Rao B. L. S. , Varadarajaperumal V. 
Published: October 2015

Abstract
We obtain some random fixed point theorems for random mappings. We use the orbits of the random mappings
to show the existence of a fixed point for a class of random mappings and also establish the measurability of solutions
obtained through such random mappings. Some applications of these theorems to random integral equations are given.
Preventive effect of total glycosides from Ligustri Lucidi Fructus against nonalcoholic fatty liver in mice
Authors: Yang Nianyun , Zhang Yiwen , Guo Jianming 
Published: October 2015

Abstract
The protective effects of the total glycosides from Ligustri Lucidi Fructus against nonalcoholic fatty liver (NAFL) in mice were investigated. Liver injury was induced by the administration of high fat diet for 60 days. During this period, the model group received high fat diet only; the treatment groups received various drugs plus high fat diet. Compared with the model group, the total glycosides significantly decreased the contents of triglyceride (TG) and cholesterol (TC), as well as the activities of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in the serum. Moreover, the contents of TG and TC in liver tissue and the liver index were reduced. Histological findings also confirmed antisteatosis. Compared with the model group, total glycosides significantly reduced the levels of the sterol regulatory element binding protein-1c (SREBP-1c) and liver X receptor-a (LXR-α) protein, and down-regulated the expression of SREBP-1c, LXR-α and interleukin-6 (IL-6) mRNA in the liver. These results suggest that the total glycosides are effective in the treatment of NAFL of mice. Their mode of action is associated with inhibiting SREBP-1c, LXR-α and IL-6 mRNA, reducing lipid synthesis factor SREBP-1c and LXR-α protein and gene expression, suppressing inflammatory responses, then decreasing serum lipid and hepatic lipid.
Injerto autólogo versus aloinjerto fresco congelado en cirugía lumbar instrumentada. Resultados clínicos y radiológicos
Authors: Ortiz Pablo N. , Flores Kanter Diego N. 
Published: October 2015

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span><strong>Re­su­men</strong><br /><strong> In­tro­duc­ció</strong>n: L</span><span>a eficacia del aloinjerto fresco congelado es controvertida en la fusión lumbar. El objetivo de este trabajo es comparar los resultados clínicos, el tiempo de cirugía y de estadía hospitalaria, y los resultados radiológicos utilizando injerto autólogo versus aloinjerto fresco congelado en cirugía de artrodesis lumbar instrumentada.<br /> </span><span><strong>Materiales­ y ­Métodos</strong>: </span><span>Desde enero de 2009 hasta mayo de 2011, se analizaron 32 pacientes sometidos a fusión lumbar circunferencial de un nivel. Se formaron dos grupos, Grupo A: injerto autólogo, Grupo B</span>: aloinjerto fresco congelado. Antes de la cirugía, se utilizó la escala analógica visual (valoración sintomática) y el índice ODI (calidad de vida); después de la intervención, se aplicó nuevamente el índice ODI y se empleó la clasificación de Bridwell en la tomografía computarizada para evaluar la fusión. Se evaluó la duración del acto quirúrgico y de la estadía hospitalaria. Estudio de valor terapéutico, observacional, analítico, prospectivo y aleatorizado.</p><p><strong>Resultados:</strong>­ No se observaron diferencias significativas entre los grupos: calidad de vida: mejoría en grupo A: 55,26%, grupo B: 55,30 (p &lt;0,9); tiempo quirúrgico: grupo A: promedio 169,4 minutos, grupo B: 148 minutos (p &lt;0,16); estadía hospitalaria: grupo A: promedio 73,3 horas, grupo B: 58,7 horas (p &lt;0,12); tasa de fusión posterolateral: grupo A: 94,74%, grupo A: 92,31% (p &lt;0,57).</p><p><strong>Conclusión</strong>: Si bien las diferencias entre el aloinjerto fresco congelado y el autoinjerto no fueron significativas, el menor tiempo de cirugía y la estadía hospitalaria más corta en el grupo con aloinjerto fresco congelado eviden- cian que es una opción válida al autoinjerto.</p></div></div></div><div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p> </p></div></div></div>
Tomografía Computada de doble Energía: Nueva tecnología para la reducción de artefactos de metal. [Dual Energy Computed Tomography: New technology for metal artifacts reduction.]
Authors: Reynoso Exequiel , Carrascosa Patricia , Capunay Carlos , Rasumoff Alejandro , Vallejos Javier , Carpio Jimena , Lago Karen 
Published: October 2015

<p><strong>Objetivos:</strong> Explorar la utilidad de la tomografía computada de doble energía (TCDE) mediante tecnología de imágenes espectrales <em>gemstone</em> (GSI) y de un software dedicado a la reducción de artefactos de metal (MARS), para la evaluación de tejidos periprotésicos e interpretabilidad diagnóstica de patologías relacionadas con implantes.</p><p><strong>Materiales y Métodos:</strong> Se estudió la densidad ósea, partes blandas y grasa en el tejido periprotésico comparado con tejido control sin implante, utilizando un escáner de alta definición de TCDE-GSI tanto en imágenes policromáticas convencionales (PI) y monocromáticas virtuales (VMSI) con MARS en 80 pacientes con prótesis metálicas en diversas regiones musculo-esqueléticas. Se valoró también la calidad de imagen y la interpretabilidad diagnóstica mediante escala de Likert.</p><p><strong>Resultados:</strong> Con PI se observaron diferencias significativas entre el área periprotésica en los tres tipos de tejidos evaluados respecto a los controles (p&lt;0.0001); sin diferencias significativas utilizando VMSI-MARS (p=0.053 hueso, p=0.32 partes blandas, y p=0.13 grasa), demostrando mayor similitud con el tejido normal. Además, los niveles de ruido de las imágenes (DS) fueron significativamente mayores con PI (p&lt;0.0001) que con VMSI-MARS. Todas las regiones periprotésicas se consideraron no interpretables utilizando PI comparado con 11 (9%) utilizando VMSI-MARS. No hubo diferencias significativas en la dosis de radiación comparado con un grupo control pareado por sexo y edad (p= 0.21).</p><p><strong>Conclusiones: </strong>La tecnología TCDE tiene la capacidad de reducir los artefactos periprotésicos, logrando un significativo incremento en la capacidad de identificación de tejidos e interpretabilidad diagnóstica de posibles patologías relacionadas con implantes.</p>