bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation and intermolecular interaction of bio-based elastomer/hindered phenol hybrid with tunable damping properties
Authors: Zhou Xinxin , Cai Lesi , Lei Weiwei , Qiao He , Liu Chaohao , Zhao Xiuying , Chen Jianfeng , Wang Runguo , Zhang Liqun 
Published: July 2015

Abstract
In this research, crosslinked hybrids of a newly invented bio-based elastomer poly(di-isoamyl itaconate-co-isoprene) (PDII) and 3,9-bis[1,1-dimethyl-2{β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy}ethyl]-2,4,8,10-tetraoxaspiro[5,5]-undecane (AO-80) were designed and prepared by the mechanical kneading of the PDII/AO-80 hybrids at a temperature higher than the melting point of AO-80, followed by the crosslinking of PDII during the subsequent hot-pressing/vulcanization process. The microstructure, morphology, and mechanical properties of the hybrids were systematically investigated in each preparation stage by using DSC, FTIR, XRD, SEM, DMTA, and tensile testing. Part of the AO-80 molecules formed an AO-80-rich phase, but most of them dissolved in the PDII to form a very fine dispersion in amorphous form. The results of FTIR and DSC indicated that strong intermolecular interactions were formed between the PDII and the AO-80 molecules. Each PDII/AO-80 crosslinked hybrid showed a single transition with a higher glass transition temperature and significantly higher loss value (tan δ) than the neat PDII because of intermolecular interactions between the PDII and the AO-80 molecules. For instance, tan δ of PDII/AO-80 consisting of 100 phr AO-80 achieved 2.6 times as neat PDII. The PDII/AO-80 crosslinked hybrids with applicability at room temperature are potential bio-based damping materials for the future.
Building blocks for bioinspired electrets: molecular-level approach to materials for energy and electronics
Authors: Larsen Jillian M. , Espinoza Eli M. , Hartman Joshua D. , Lin Chung-Kuang , Wurch Michelle , Maheshwari Payal , Kaushal Raman K. , Marsella Michael J. , Beran Gregory J. O. , Vullev Valentine I. 
Published: July 2015

Abstract
In biology, an immense diversity of protein structural and functional motifs originates from only 20 common proteinogenic native amino acids arranged in various sequences. Is it possible to attain the same diversity in electronic materials based on organic macromolecules composed of non-native residues with different characteristics? This publication describes the design, preparation and characterization of non-native aromatic β-amino acid residues, i.e. derivatives of anthranilic acid, for polyamides that can efficiently mediate hole transfer. Chemical derivatization with three types of substituents at two positions of the aromatic ring allows for adjusting the energy levels of the frontier orbitals of the anthranilamide residues over a range of about one electronvolt. Most importantly, the anthranilamide residues possess permanent electric dipoles, adding to the electronic properties of the bioinspired conjugates they compose, making them molecular electrets.
Combined use of CO2 laser and tissue glue versus conventional surgical techniques for circumcision – A prospective study
Authors: Mungnirandr Akkrapol , Wiriyakamolphan Suwanna , Ruangtrakool Ravit , Ngerncham Monawat , Tumrongsombutsakul Sureerat , Leumcharoen Bungorn 
Published: July 2015

AbstractUse of a COThirty boys were divided into two groups. Group 1 (n=17) underwent circumcision using a scalpel with approximation of the wound edges using chromic catgut sutures. Group 2 (n=13) underwent circumcision using a COGroup 1 (scalpel+sutures) had a significantly longer operation time (The combined use of a CO
The Arabic quantifier "kull"
Authors: Abdel-Ghafer Osama 
Published: July 2015

AbstractThis paper seeks to analyze the internal structure of "kull" structures and hence the asymmetries that arise in the context of such structures in Modern Standard Arabic. It is argued that "kull"-initial and "kull"-final are derivationally unrelated. Drawing on a number of structural asymmetries, the quantifier is argued to project into a quantifier phrase which is merged inside a determiner phrase. The difference between quantifier-initial and quantifier-final structures relates to the position where the quantifier phrase is merged. In quantifier-initial structures, the quantifier phrase is argued to be merged as the complement of the determiner while in quantifier-final structures, the quantifier phrase is argued to be adjoined to DP. Within this context, syntactic as well as semantic conse-quences result from the initial merge of the quantifier phrase.
Thermal Impacts of Vertical Greenery Systems
Authors: Safikhani Tabassom , Abdullah Aminatuzuhariah Megat , Ossen Dilshan Remaz , Baharvand Mohammad 
Published: July 2015

Abstract
- Using vertical greenery systems to reduce heat transmission is becoming more common in modern architecture. Vertical greenery systems are divided into two main categories; green facades and living walls. This study aims to examine the thermal performance of vertical greenery systems in hot and humid climates. An experimental procedure was used to measure indoor temperature and humidity. These parameters were also measured for the gap between the vertical greenery systems and wall surfaces. Three boxes were used as small-scale rooms. Two boxes were provided with either a living wall or a green facade and one box did not have any greenery (benchmark). Blue Trumpet Vine was used in the vertical greenery systems. The data were recorded over the course of three sunny days in April 2013. An analyses of the results showed that the living wall and green facade reduced indoor temperature up to 4.0 °C and 3.0 °C, respectively. The living wall and green facade also reduced cavity temperatures by 8.0 °C and 6.5 °C, respectively.
Biosorption of Metallic Elements onto Fen Peat
Authors: Krumins Janis , Robalds Artis 
Published: July 2015

Abstract
Industrial development and anthropogenic activity have a huge impact on the environment, forcing society to find new and cost-effective environment treatment technologies. One of the most effective and environmentally friendly methods is the use of biosorbents, for which peat is one of the most cost-effective materials. The adsorption capabilities of peat sediments are well known; however, mainly raised bog peat is used for environmental treatment, and thus the abilities of fen peat are underestimated. The aim of this research was to assess the fen peat suitability as an adsorbent for metallic elements. In this study we have determined the sorption characteristics of Ca, Mg, K, Na, Cu and Pb and results show that fen peat deposits have a huge variability as a biosorbent due to their variable botanical composition and complex properties, for instance, under equal conditions, wood-sedge peat can have higher lead adsorption capacity than wood peat. However, due to its natural content of metallic elements, the sorption capacity overall is lower than it is for raised bog peat, although the high pH reaction encourage a high mobility metals.
Performance Analysis of Air-to-Water Heat Pump in Latvian Climate Conditions
Authors: Kazjonovs Janis , Sipkevics Andrejs , Jakovics Andris , Dancigs Andris , Bajare Diana , Dancigs Leonards 
Published: July 2015

Abstract
Strategy of the European Union in efficient energy usage demands to have a higher proportion of renewable energy in the energy market. Since heat pumps are considered to be one of the most efficient heating and cooling systems, they will play an important role in the energy consumption reduction in buildings aimed to meet the target of nearly zero energy buildings set out in the EU Directive 2010/31/EU.
Unfortunately, the declared heat pump Coefficient of Performance (COP) corresponds to a certain outdoor temperature (+7 °C), therefore different climate conditions, building characteristics and settings result in different COP values during the year. The aim of this research is to investigate the Seasonal Performance factor (SPF) values of air-to-water heat pump which better characterize the effectiveness of heat pump in a longer selected period of time, especially during the winter season, in different types of residential buildings in Latvian climate conditions. Latvia has four pronounced seasons of near-equal length. Winter starts in mid-December and lasts until mid-March. Latvia is characterized by cold, maritime climate (duration of the average heating period being 203 days, the average outdoor air temperature during the heating period being 0.0 °C, the coldest five-day average temperature being −20.7 °C, the average annual air temperature being +6.2 °C, the daily average relative humidity being 79 %).
The first part of this research consists of operational air-towater heat pump energy performance monitoring in different residential buildings during the winter season. The second part of the research takes place under natural conditions in an experimental construction stand which is located in an urban environment in Riga, Latvia. The inner area of this test stand, where air-to-water heat pump performance is analyzed, is 9 m2. The ceiling height is 3 m, all external wall constructions (U = 0.16 W/(m2K)) have ventilated facades. To calculate SPF, the experimental stand is equipped with sensors which provide measurements for electricity consumption and gained heat energy.
Increasing of Food and Bioenergy Potato Resources by Microbial Influence on Tubers Phytohormonal Status
Authors: Kiprushkina Elena I. , Baranenko Denis A. 
Published: July 2015

Abstract
Potato and its by-products became a promising both food and bioenergy resource. The determination of the bacteriaantagonists influence on phytohormone status and productivity of potato tubers was studied. The indole-3-acetic acid content during the dormancy end and germinating in the tubers treated with Bacillus subtilis Ch-13 was fewer than in the control samples. L-tryptophan significant quantity compared to the control was found in the treated tubers in a state of physiological dormancy (more than 2-fold) and especially during active germination (43 times greater). Average potato yield increase at treated fields was of 18.8 %.
Modeling the next generation sequencing read count data for DNA copy number variant study
Authors: Ji Tieming , Chen Jie 
Published: July 2015

AbstractAs one of the most recent advanced technologies developed for biomedical research, the next generation sequencing (NGS) technology has opened more opportunities for scientific discovery of genetic information. The NGS technology is particularly useful in elucidating a genome for the analysis of DNA copy number variants (CNVs). The study of CNVs is important as many genetic studies have led to the conclusion that cancer development, genetic disorders, and other diseases are usually relevant to CNVs on the genome. One way to analyze the NGS data for detecting boundaries of CNV regions on a chromosome or a genome is to phrase the problem as a statistical change point detection problem presented in the read count data. We therefore provide a statistical change point model to help detect CNVs using the NGS read count data. We use a Bayesian approach to incorporate possible parameter changes in the underlying distribution of the NGS read count data. Posterior probabilities for the change point inferences are derived. Extensive simulation studies have shown advantages of our proposed methods. The proposed methods are also applied to a publicly available lung cancer cell line NGS dataset, and CNV regions on this cell line are successfully identified.
Contact Stress Analysis and Fatigue Life Prediction of a Turbine Fan Disc
Authors: Yang Liang , Zhu Shun-Peng , Lv Zhiqiang , Zuo Fang-Jun , Huang Hong-Zhong 
Published: July 2015

AbstractFan discs are critical components of an aero engine. In this paper, contact stress and life prediction of a turbine fan disc were investigated. A simplified pin/disc model was conducted to simulate the practical working condition under applied loads using finite element (FE) analysis. This study is devoted to examining the eﬀects of interface condition of pin/disc such as gap and coefficient upon the maximum stress. The FE model indicated that the maximum stress occurs at the top right corner in the second pin hole, and larger gap or friction coefficient has a significant effect on the maximum stress. In addition, FE analysis without considering friction is also conducted. The results show that the dangerous point is similar to the result which considers friction and the stress state is relatively larger than that of considering friction. Finally, based on FE analysis result, life prediction for the fan disc is conducted to combine the material
Monotonicity and the typology of front/back harmony
Authors: Rebrus Péter , Törkenczy Miklós 
Published: July 2015

AbstractIn this paper, we analyse the surface patterns of suffix harmony in front/back harmony systems as the harmonic values front and back being assigned to harmonic contexts consisting of strings of syllables combining front, back and neutral nuclei. We claim that the harmonic contexts can be arranged in a fixed (universal) scale, the frontness/backness scale, with reference to which the possible (i.e. attested) front/back harmony systems can be characterised in a simple way: only those systems are possible where the assignment of values to the harmonic contexts is monotonic, which makes sure that only contiguous (non-interrupted) sequences of harmonic values are assigned to the harmonic contexts. We give formal definitions of monotonicity in terms of ordering and similarity and discuss predictions about possible harmony systems that follow from monotonicity (which we claim are borne out). These predictions are typological: harmony systems can show disharmonic behaviour, but in a principled way: only those systems exist (at least in front/back harmony) that exhibit a monotonic pattern. In the second half of the paper, we discuss variation in harmony and analyse in detail variation in anti-harmony and transparency in Hungarian, which is thus an example of a variable harmony pattern. We argue that variable front/back harmony patterns assign a “variable” value to some harmonic contexts in addition to the front and back values and can be shown to be constrained by monotonicity, whose definition is naturally extendable to patterns with variation. We discuss both the ordering-based and the similarity-based definitions and the predictions about possible variable harmony systems that follow from the definitions. One of the main predictions of the paper is a consequence of monotonicity: the locus of the variation in a pattern occurs only “in between” non-variable subpatterns. We explore a possible way of quantification in which we identify the harmonic values with the relative token frequency of the forms where the number associated with a variable value is
Prenylated 9,10-dihydrophenanthrenes from Macaranga javanica
Authors: Ilmiawati Aulia , Hakim Euis H. , Syah Yana M. 
Published: July 2015

Abstract
Phytochemical investigation of the acetone extract of Macaranga javanica leaves afforded three new prenylated 9,10-dihydrophenanthrenes, macajavanicins A–C (1–3). Structures of these compounds were elucidated mainly by NMR and mass spectral data. Along with compounds 1–3, two known prenylated dihydrostilenes, laevifolins A and B (4, 5), were also isolated. The presence of these new 9,10-dihydrophentanthrene derivatives is the first time in the genus Macaranga, and its chemotaxonomic significances are briefly discussed. The antibacterial properties of compounds 1–5 against eight pathogenic bacteria are also described.
Anti-angiogenic and antiproliferative properties of the lichen substances (-)-usnic acid and vulpinic acid
Authors: Koparal Ayşe Tansu 
Published: July 2015

Abstract
The anti-proliferative activities of the lichen substances (-)-usnic acid and vulpinic acid on the viability of HepG2 hepatocarcinoma cells, NS20Y neuroblastoma cells and HUVEC endothelial cells were studied by the MTT assay. The anti-angiogenic potential of the substances was determined by the endothelial tube formation assay. Both lichen substances exhibited strong anti-angiogenic activity and were more cytotoxic to the cancer cell lines than to the normal cell line, but vulpinic acid has more potential as an anti-angiogenic substance because of its low cytotoxicity and stronger anti-angiogenic activity on the HUVEC cell line.
Observation of Translation-to-Vibration Excitation in Acetylene Scattering from Au(111): A REMPI Based Approach
Authors: Golibrzuch Kai , Baraban Joshua H. , Shirhatti Pranav R. , Werdecker Jörn , Bartels Christof , Wodtke Alec M. 
Published: July 2015

Abstract
We present quantum-state and velocity resolved experiments for
molecular beam scattering of acetylene (C2H2) from
a single-crystal Au(111) surface, observations that reveal
translational, rotational and vibrational inelasticity. The
experiments are made possible by a novel (1 + 2) REMPI scheme for
acetylene. The scattered molecules' velocity distributions as well as
their ro-vibrational quantum-state distributions depend on the
translational energy of incidence, E
I, providing
unambiguous evidence that the scattered molecules were not trapped and
equilibrated on the surface. We report the E
I-dependence
of the collisional excitation of one and two quanta of the
trans-bending vibrational mode, ν
4 = 0 → 1, 2, which is
consistent with a mechanism involving conversion of incidence
translational energy to acetylene vibration. Rotationally resolved
velocity measurements on scattered acetylene in its ground vibrational
state are interpreted in terms of orientation-dependent rotational and
vibrational excitation probabilities.
Programa de visita domiciliaria del sistema de salud costarricense: lineamientos para su mejora
Authors: Solís Cordero Katherine , Guevara Frances Giancarlo 
Published: July 2015

Introducción. La visita domiciliaria se constituye en la principal estrategia de atención primaria al acercar los servicios de salud a los domicilios y lugares de trabajo de las personas, lo cual permite conocer de primera mano las necesidades de la población. La visita domiciliaria efectuada por el ATAP representa el primer contacto del individuo, familia y comunidad con el sistema de salud, con importantes beneficios tanto a nivel individual como colectivo. La presente investigación responde a la necesidad de identificar los elementos que el programa de visita domiciliaria requiere mejorar, modificar o sustituir con el fin de maximizar la prestación de este servicio.Método. Se diseñó un estudio cualitativo, analítico observacional. Se recolectó los datos mediante revisión bibliográfica, entrevista a informantes claves y grupo focal. El análisis se realizó a partir de la teoría fundamentada.Resultados. Los datos evidenciaron la existencia de elementos a nivel de sistema de salud, programa de visita domiciliaria y figura del ATAP que deben ser revisados, modificados o sustituidos con el fin de que la visita domiciliaria tenga mayores y mejores alcances para la población y el sistema de salud.Conclusión. El programa de visita domiciliaria representa una fortaleza del sistema de salud costarricense al abordar las inequidades en salud. Sin embargo, es imperativa la toma de decisiones e implementación de acciones que promuevan el mejoramiento y aumento de los alcances que tiene la visita domiciliaria en el abordaje de la población a nivel familiar y comunitario.
Keratinized Gingiva Height Increases After Alveolar Corticotomy and Augmentation Bone Grafting
Authors: Wilcko M. Thomas , Ferguson Donald J. , Makki Laith , Wilcko William M. 
Published: July 2015

Background: The aim of the present study is to compare the keratinized gingival tissue (KT) height labial to the mandibular incisors after active orthodontic treatment (AOT) with and without alveolar corticotomy and bone grafting.Methods: Two orthodontically treated groups of 35 patients each, with (Cort) and without (Conv) alveolar decortication and augmentation bone grafting, are matched in this case‐control study for sample size, sex, mandibular premolar extractions, pretreatment age, post‐treatment observation period, and pretreatment KT height. Standardized digital frontal occlusion photographs taken before and at least 1 year after AOT were adjusted to 96 dots per inch and measured with image analysis software for vertical KT height labial to each mandibular incisor.Results: An average of 1.5 years after completion of AOT, KT height had increased significantly by 0.78 mm (P < 0.001) in the Cort group and decreased 0.38 mm (P = 0.002) in the Conv group; a 1.28‐mm KT height gain was demonstrated in the subgroup representing the lowest half of Cort KT height at pretreatment. Mandibular incisor inclination and prominence explained neither the decrease in KT height in Conv nor the KT height gain in Cort.Conclusions: Orthodontic therapy combined with alveolar decortication and augmentation bone grafting resulted in a significant increase in KT height. Although KT height surrounding the dentition has been devalued by evidence‐based studies, the value‐added protection of KT height increase after decortication and augmentation bone grafting offsets the concerns of orthodontic proclination or expanding mandibular incisors facially.
Aortic Pulse Wave Velocities Using Real-Time Phase-Contrast MRI
Authors: Joseph Arun A. , Fasshauser Martin , Merboldt Klaus-Dietmar , Frahm Jens 
Published: July 2015

Purpose:
To evaluate aortic pulse wave velocities obtained by real-time phase-contrast (PC) MRI in comparison to cine PC MRI.

Methods:
Real-time PC MRI of eight healthy volunteers employed highly undersampled radial FLASH sequences and
phase-sensitive image reconstructions by regularized nonlinear inversion (NLINV) at 40 ms temporal resolution and 1.3
mm in-plane resolution. Pulse wave velocities were analyzed for combinations of 2, 3 and 4 locations of aortic flow using
time-to-upslope and cross-correlation methods.

Results:
For the time-to-upslope analysis mean pulse wave velocities ranged from 3.5 to 3.9 m s-1 for real-time PC MRI
and from 3.5 to 3.8 m s-1 for cine PC MRI. A cross-correlation analysis of the same data resulted in 2.9 to 3.3 m s-1 and 3.3
to 3.7 m s-1, respectively.

Conclusion:
Real-time PC MRI determined aortic pulse wave velocities from single cardiac cycles in close correspondence
to values obtained by cine PC MRI.
Intrathecal preservative-free normal saline challenge magnetic resonance myelography for the identification of cerebrospinal fluid leaks in spontaneous intracranial hypotension
Authors: Griauzde Julius , Gemmete Joseph J. , Pandey Aditya S. , Chaudhary Neeraj 
Published: July 2015

OBJECT
A CSF leak can be difficult to locate in patients who present with spontaneous intracranial hypotension (SIH). The purpose of this case series was to describe the authors’ experience with intrathecal preservative-free normal saline challenge coupled with contrast-enhanced MR myelography (CEMRM), which was used to provoke and detect a CSF leakage site in patients with SIH.

METHODS
The authors performed a retrospective review of the records of patients who underwent preservative-free normal saline challenge followed by intrathecal gadolinium (Gd) contrast infusion and MR myelography from 2010 to 2012.

RESULTS
The records survey identified 5 patients who underwent 6 procedures. Intrathecal preservative-free normal saline challenge followed by CEMRM identified a CSF leak during 5 of the 6 procedures. Previous CT myelograms were available from 4 patients, which did not reveal a leakage site. A CT myelogram of 1 patient showed a single leak, but the authors’ saline challenge-CEMRM technique identified multiple additional leakage sites. Three patients exhibited transient postprocedural symptoms related to the saline infusion, but no long-term or permanent adverse effects related to the procedure were observed.

CONCLUSIONS
Instillation of preservative-free normal saline into the thecal sac followed by intrathecal Gd infusion is a safe technique that may increase the detection of a CSF leak on MR myelography images in patients with SIH.