bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characterization of bursa subacromialis-derived mesenchymal stem cells
Authors: Steinert Andre F. , Kunz Manuela , Prager Patrick , Göbel Sascha , Klein-Hitpass Ludger , Ebert Regina , Nöth Ulrich , Jakob Franz , Gohlke Frank 
Published: June 2015

Abstract
Introduction
The bursa subacromialis (BS) provides the gliding mechanism of the shoulder and regenerates itself after surgical removal. Therefore, we explored the presence of mesenchymal stem cells (MSCs) within the human adult BS tissue and characterized the BS cells compared to MSCs from bone marrow (BMSCs) on a molecular level.

Methods
BS cells were isolated by collagenase digest from BS tissues derived from patients with degenerative rotator cuff tears, and BMSCs were recovered by adherent culture from bone-marrow of patients with osteoarthritis of the hip. BS cells and BMSCs were compared upon their potential to proliferate and differentiate along chondrogenic, osteogenic and adipogenic lineages under specific culture conditions. Expression profiles of markers associated with mesenchymal phenotypes were comparatively evaluated by flow cytometry, immunohistochemistry, and whole genome array analyses.

Results
BS cells and BMSCs appeared mainly fibroblastic and revealed almost similar surface antigen expression profiles, which was CD44+, CD73+, CD90+, CD105+, CD106+, STRO-1+, CD14−, CD31−, CD34−, CD45−, CD144−. Array analyses revealed 1969 genes upregulated and 1184 genes downregulated in BS cells vs. BMSCs, indicating a high level of transcriptome similarity. After 3 weeks of differentiation culture, BS cells and BMSCs showed a similar strong chondrogenic, adipogenic and osteogenic potential, as shown by histological, immunohistochemical and RT-PCR analyses in contrast to the respective negative controls.

Conclusions
Our in vitro characterizations show that BS cells fulfill all characteristics of mesenchymal stem cells, and therefore merit further attention for the development of improved therapies for various shoulder pathologies.
Isomers of Benzene on Its Global Network of Reaction Pathways
Authors: Tokoyama Hiroaki , Yamakado Hideo , Maeda Satoshi , Ohno Koichi 
Published: May 2015

Abstract
Isomers of benzene (C6H6) have been searched by quantum chemical calculations using the GRRM/SCC-DFTB program. Further optimization at the level of B3LYP/6-311G(d,p) gave 2004 equilibrium structures (EQ). Obtained EQs were assigned as 212 valence isomers, 928 nonvalence isomers, 798 two-component clusters, and 66 three-component clusters. Energies of EQs range from the most stable isomer of benzene to the highest EQ at 1237 kJ mol−1. The low energy region below 380 kJ mol−1 only includes valence isomers. Valence isomers are distributed between 0 and 807 kJ mol−1, while nonvalence isomers are located in the range of 380–1180 kJ mol−1. All of the experimentally known 30 isomers of benzene were searched as valence isomers by the ADDF/SCC-DFTB method. Formally hypervalent molecules including pentacoordinated carbon atoms were discovered among nonvalence isomers.
Spruce regeneration on woody microsites in a subalpine forest in the western Carpathians
Authors: Bujoczek Leszek , Bujoczek Małgorzata , Banaś Jan , Zięba Stanisław 
Published: June 2015

The density of [L.] Karst. regeneration on different microsites, the quantity and quality of woody microsites, and seedling occurrence probability on stumps and fallen deadwood were studied in a subalpine forest that has been under protection for approximately 30â40 years (Gorce Mountains in the western Carpathians). Thirty percent of seedlings and 29% of saplings grew on stumps and fallen deadwood, while the remaining regeneration occurred on soil surface and mounds created by uprooted trees. The occurrence probability of seedlings on fallen deadwood increased with deadwood diameter and decay stage and with the volume of living trees, and decreased with increased density of living trees, sapling density, and land slope. Furthermore, seedlings were more likely to grow on stumps with a greater diameter and in plots with higher sapling density, but less likely to grow on higher stumps. Stumps and fallen deadwood covered about 4% of the forest floor, but the material that is most important for promoting regeneration (strongly decomposed logs and those of a diameter exceeding 30Â cm) took up only about 22 m ha. We have concluded that in a subalpine forest that has been protected for 30â40 years regeneration processes take place mostly on soil surface and stumps. The role of fallen deadwood increases over time as a greater number of suitable logs (in terms of size and decay stage) become available.Picea abies Picea2-1
Optimization of biodiesel synthesis under simultaneous ultrasound-microwave irradiation using response surface methodology (RSM)
Authors: Safieddin Ardebili Seyed Mohammad , Hashjin Teymor Tavakoli , Ghobadian Barat , Najafi Gholamhasan , Mantegna Stefano , Cravotto Giancarlo 
Published: June 2015

AbstractThis work investigates the effect of simultaneous ultrasound-microwave irradiation on palm oil transesterification and uncovers optimal operating conditions. Response surface methodology (RSM) has been used to analyze the influence of reaction conditions, including methanol/palm oil molar ratio, catalyst concentration, reaction temperature and irradiation time on biodiesel yield. RSM analyses indicate 136 s and 129 s as the optimal sonication and microwave irradiation times, respectively. Optimized parameters for full conversion (97.53%) are 1.09% catalyst concentration and a 7:3.1 methanol/oil molar ratio at 58.4°C. Simultaneous ultrasound-microwave irradiation dramatically accelerates the palm oil transesterification reaction. Pure biodiesel was obtained after only 2.2 min while the conventional method requires about 1 h.
Adolescent health in Asia: insights from Thailand
Authors: Areemit Rosawan , Manaboriboon Boonying 
Published: June 2015

Abstract

Background:
Adolescence in an age of opportunity in Thailand. The main health issues of this age group are related to pregnancy, injuries and poisoning, all which should be preventable.

Objective and methods:
This article presents the experiences of Thai physicians, who received adolescent medicine fellowship training in North America and brought their experience, knowledge, skills, and adolescent health care principles and practice back to Thailand. The anticipations and the facts faced in everyday practice, training, research, and collaboration in a place with their own culture and societal norms are described.

Results:
Currently, there are six adolescent medicine specialists who work with experienced specialist in the subcommittee of adolescent health under the Royal College of Pediatricians of Thailand. There has been collaboration with both the public sector and health care sector, government and non-government organizations with regards to health care service and promotion. Many hospitals especially residency training institutes have increased the cut-off age of patients to be seen by pediatricians to 15 or 18 years of age. Since 2011, adolescent medicine was made one of the mandatory rotations in all pediatric resident training programs.

Conclusion:
There is still more work to be done – issues around policies for confidentiality and a lower age of consent, collaboration between other specialties to enable a large-scale youth-friendly one-stop services, and multicenter research opportunities are still awaiting.
Ultra-thin films for plasmonics: a technology overview
Authors: Malureanu Radu , Lavrinenko Andrei 
Published: June 2015

AbstractUltra-thin films with low surface roughness that support surface plasmon-polaritons in the infra-red and visible ranges are needed in order to improve the performance of devices based on the manipulation of plasmon propagation. Increasing amount of efforts is made in order not only to improve the quality of the deposited layers but also to diminish their thickness and to find new materials that could be used in this field. In this review, we consider various thin films used in the field of plasmonics and metamaterials in the visible and IR range. We focus our presentation on technological issues of their deposition and reported characterization of film plasmonic performance.
Superdiversity – a new concept for migrant health?
Authors: Zeeb Hajo , Makarova Nataliya , Brand Tilman , Knecht Michi 
Published: June 2015

Abstract
European populations are changing fast (Rechel B, Mladovsky P, Ingleby D, Mackenbach JP, McKee M. Migration and health in an increasingly diverse Europe. Lancet 2013;381:1235–45). Social categories such as ethnicity, migration background, country of origin, socio-economic status and gender exist alongside each other but need to be considered jointly in order to better capture the ever increasing complexity of communities and their inhabitants. In the last decade, the concept of “superdiversity” (Vertovec S. Super-diversity and its implications. Ethnic and Racial Studies 2007;30:1024–54) has emerged: it aims to capture the further diversification of diversity and refers specifically to urban communities where established immigrant groups mix with newly arriving immigrants, adding to the already existing social, ethnic and cultural diversity.
Finite element analysis of mechanical properties of woven composites through a micromechanics model
Authors: Khan Haris A. , Hassan Abid , Saeed M.B. , Mazhar Farrukh , Chaudhary Imran A. 
Published: June 2015

Abstract
In a woven fabric composite, arrangement and behavior of the fibers contained in the yarn and the yarns themselves lead to an intricate deformation mechanism. The current research, therefore, intends to propose a simplified mathematical micromechanics model for calculating mechanical properties of the plain weave composite using finite element analysis (FEA). A repetitive volume element (RVE) cell approach has been adopted for properties evaluation of plain weave composites. The FEA allows the modeling and portrayal of fabrics by taking into account various geometric parameters such as the yarn undulation, the probability of existence of consonances in a unit cell and interaction between warp and fill tows. These factors help in generating a mesh close to the actual fabric/composite. Additionally, a technique to represent the internal layout of composite structure employing actual dimensions of yarn geometry using conventional measurement devices, rather than using the demanding method of obtaining measurements from photomicrographs of sectioned laminates, is also proposed. The geometric symmetries as reported in the available literature were also incorporated during the model formulation. The theory of comparative displacements was then used to construe these symmetries into appropriate mechanical terms. Consequently, this leads to the formulation of boundary conditions for the RVE. The proposed finite element micromechanics model is different from the existing models in a way that it defines the yarn cross-sectional path based upon computational fluid dynamics technique rather than conventionally obtained photomicrographic results or the proposed sinusoidal paths by various researchers. Experiments were then performed on the laminates used for obtaining the geometric parameters with the aim of supporting the validity of the suggested model. The results of computational analysis were found to be in good agreement with the outcomes of experimental investigation.
Tensile strength of Z-pinned laminates in RTD and hot-wet environment
Authors: Li Chenghu , Guo Wei , Wu Zhe 
Published: June 2015

Abstract
Experiments and simulation analysis for tensile strength of Z-pinned laminates were conducted in both room temperature and dry and hot-wet environments. The results of the experiments show that the fracture of [0]6 specimen with Z-pins was longitudinally torn, and there was a row of Z-pins at the fracture of [(±45)/(0,90)]2S specimen with Z-pins. It could be observed that the hot-wet effect on the tensile strength of the Z-pinned laminates increased with percentage of 0-direction fibers decreasing in the laminates from the experiments of the unidirectional tape laminates and the woven cloth laminates. When the volume content of Z-pin increased, the hot-wet effect on tensile strength of Z-pinned [45/0/-45/90]2S laminates with Z-pins would become smaller and smaller. The simulation method of the hot-wet effect on tensile strength of the laminates was combined with the experiment and the finite element analysis. It used 14 nonlinear springs to simulate the longitudinal tearing of [0]6 specimen with Z-pins. The simulation results showed that Z-pin played a role of fulcrum, and because of the lever principle, the fiber bundles were torn at both tips in resin-rich area.
Linguistic Decolonization in Jamaican Radio
Authors: Westphal Michael 
Published: June 2015

AbstractThis article illustrates the value redistributions of Jamaican Creole (JC) and Standard English (StE) in the public sphere of radio by investigating changes in the discursive practices of language use, norms and other framework conditions of radio production, as well as listeners’ perception of linguistic variation on air. JC was marginalized and stigmatized in pre- and early post-independence Jamaican radio but has subsequently acquired an important role, mainly in dialogic and informal contexts. Despite its increased value, JC has not substantially challenged the prestige position of StE, which has remained the unmarked choice for formal broadcasting. However, there has been a localization of StE on the air away from exonormative standards and towards Jamaican English (JE) while British and American influences remain in place. In this linguistic decolonization process both JC and JE have acquired new values, but remnants of an unequal power distribution linger on.
Variabilidad interspecífica de duraznos (Prunus pérsica L. Batsch.) y ciruelos (Prunus domestica) usando RAMs
Authors: Morillo Coronado Ana Cruz , Morillo Coronado Yacenia , González Mendoza Leonardo Ariel , Ávila Morales Iván Adiel 
Published: June 2015

<strong>Título en inglés: Intraespecific variability of peach (<em>Prunus persica</em> L. Batsch.) and plums (<em>Prunus domestica</em>) using RAMs</strong><p><strong>Resumen: </strong>Se seleccionó una muestra de 41 materiales de <em>Prunus</em> de la colección de caducifolios de la Universidad Pedagógica y Tecnológica de Colombia, para evaluar su variabilidad genética usando ocho marcadores Microsatélites Amplificados al Azar (RAMs). Se generaron un total de 121 alelos con pesos moleculares entre 260 y 1000 Kb. Se formaron tres grupos, a un coeficiente de similitud de 0.75, de acuerdo a las características del fruto y a la especie, encontrándose en el grupo II a los materiales de ciruelo. El porcentaje de loci polimórficos varío entre 71 y 99% para los cebadores CGA y CCA, respectivamente. El valor promedio de heterocigosidad fue de 0.22, mucho más bajo que los encontrados en otros estudios de diversidad genética en el género <em>Prunus</em>. La técnica RAMs mostró ser una herramienta útil para evaluar la diversidad genética en frutales caducifolios, al discriminar a los materiales en tres grupos e identificar el alto grado de consanguinidad que existe entre las diferentes especies de <em>Prunus</em> lo cual debe ser aprovechado dentro de las estrategias de hibridación que busquen la obtención de nuevos y mejores materiales. </p><p><strong>Palabras claves: </strong><em>Prunus</em>, Diversidad genética, Microsatélites RAMs, caducifolios.</p><p><strong>Abstract: </strong>A sample of 41 <em>Prunus </em>materials from the deciduous collection of the Pedagogical and Technological University of Colombia was selected to evaluate its genetic diversity using eight primers for Random Amplified Microsatellite (RAMs). A total of 121 alleles were generated with molecular weights ranging between 260 and 1000 Kb. Three groups were formed, a similarity coefficient of 0.75, according to fruit characteristics and specie, found plum materials in group II. The percentage of polymorphic loci ranged from 71 to 99% for the primers CGA and CCA, respectively. The average value of heterozygosity was 0.33, much lower than values found in other genetic diversity studies in the genus <em>Prunus</em>. The RAMs technique showed to be a useful tool for assessing genetic diversity in deciduous fruit, discriminate the materials into three groups and identify the high degree of consanguinity between different Prunus species which should be exploited in hybridization strategies looking for obtaining new and improved materials.<strong></strong></p><p><strong>Key words</strong>: <em>Prunus</em>, Genetic diversity, Microsatellites RAMs, deciduous. </p>
Viabilidad de una bacteria láctica encapsulada e incorporada en una matriz de cobertura de chocolate
Authors: García Gonzalez Estefania , Serna Cock Liliana 
Published: June 2015

<strong>Título en ingles: Viability of encapsulated lactic bacteria added in a matrix of chocolate coverage</strong><p><strong>Título corto: Cobertura de chocolate probiótica</strong></p><p><strong>Resumen:</strong> Se evaluó la viabilidad durante el almacenamiento de <em>Weissella confusa</em> incorporada en una matriz de cobertura de chocolate. La bacteria probiótica se encapsuló empleando tres materiales de pared, gel de Aloe vera, gel Aloe vera + Almidón al 10 % y gel de Aloe vera + Almidón al 15 % y células libres como control. Posteriormente se liofilizó. La bacteria probiótica encapsulada, se incorporó en una matriz de cobertura de chocolate. Los chips se empacaron y almacenaron durante 5 semanas a 4 °C, cada semana se midieron cambios en la viabilidad de la bacteria probiótica y en la actividad de agua. En la quinta semana, los chips se sometieron a condiciones simuladas de jugos intestinales. Durante el almacenamiento los chips mantuvieron su carácter probiótico (&gt;10<sup>6 </sup>UFC/g), sin embargo, cuando la bacteria probiótica se encapsuló en gel aloe vera, se obtuvo mayor número de bacterias probióticas vivas dentro de la matriz sólida (2,1x10<sup>8 </sup>UFC/g). La actividad de agua varió de 0,470 a 0,810. La bacteria probiótica permaneció viva por 2 horas en medios simulados de jugos intestinales, lo cual ratifica que la matriz sólida y los medios de encapsulación seleccionados son adecuados para el desarrollo de productos sólidos probióticos ricos en grasa vegetal.</p><p><strong>Palabras clave:</strong> probiótico, chip, encapsulación, Aloe, almidón, viabilidad celular.</p><p><strong>Abstract: </strong>Viability during storage of <em>Weissella confusa</em> incorporated in a chocolate coating matrix was evaluated. Probiotic bacteria was encapsulated using three wall materials, Aloe vera gel, Aloe vera gel + 10 % starch and aloe vera gel + 15 % starch and free cells as control. Subsequently lyophilized. Probiotic bacteria encapsulated, was incorporated into a chocolate coating matrix. The chips were packed and stored for 5 weeks at 4 °C, were measured weekly changes in viability of the probiotic bacteria and water activity. In the fifth week, the chips were subjected to simulated conditions of intestinal juices. During storage chips remained probiotic character (&gt;10<sup>6</sup> CFU/g), however, if the probiotic bacteria are encapsulated in aloe vera gel, the greater number of living probiotic bacteria was obtained within the solid matrix (2,1x10<sup>8</sup> CFU/g ). Water activity ranged from 0.470-0,810. Probiotic bacteria remained alive for 2 hours in simulated intestinal fluid media, which confirms that the solid matrix and the selected encapsulation means are suitable for the development of solid product rich in vegetable fat probiotics.</p><p><strong>Key words:</strong> probiotic, chip, encapsulation, Aloe, starch, cellular viability.</p><p><strong>Recibido: </strong>septiembre 16 de 2014<strong> Aprobado: </strong>abril 20 de 2015</p>
First record of Plantago commersoniana (Plantaginaceae), a rare and threatened species, in the Central-West region of Brazil
Authors: Hassemer Gustavo , Ribas Osmar Dos Santos , Rønsted Nina 
Published: May 2015

Plantago commersoniana is a rare and threatened species, with a highly disjunct distribution, mainly in southern Brazil. This study expands its distribution to Mato Grosso do Sul state, in the Central-West region of Brazil, due to the discovery of a collection of this species from rocky grasslands in Ponta Porã. This new record is ca. 285 km distant from the nearest known population, in Yhú, Caaguazú department, eastern Paraguay. This is also the first record of a native Plantago species in Mato Grosso do Sul. Its conservation status according to the IUCN criteria is Endangered (EN).
Mechanical properties of titanium processed by hydrostatic extrusion
Authors: Topolski K. , Garbacz H. , Wiecinski P. , Pachla W. , Kurzydłowski K.J. 
Published: June 2015

The mechanical properties of titanium Grade 2 subjected to the hydrostatic extrusion technique (HE) were investigated. The hydrostatic extrusion technique is a method which refines the titanium grains to a nano-metric size.
Compared with coarse grained titanium (CG-Ti), nanocrystalline titanium (NC-Ti) is characterized by a much higher yield stress, tensile strength and microhardness. The yield stress of NC-Ti determined in tensile tests is higher than that measured in compression test. The Young modulus of NC-Ti is slightly lower than that of CG-Ti.
Influence of the Carbon Content on the Kinetics of Phase Transformations During Continuous Heating from As-Quenched State in a Cr-Mn-Mo Model Alloys / Wpływ Zawartości Węgla Na Kinetykę Przemian Fazowych Podczas Nagrzewania Ze Stanu Zahartowanego W Stopach Modelowych Cr-Mn-Mo
Authors: Dziurka R. , Pacyna J. 
Published: June 2015

The presented work concerns the research on the kinetics of phase transformations during continuous heating from as-quenched state of three Cr-Mn-Mo model alloys with a different carbon content. The kinetics of phase transformations during continuous heating of investigated alloys was presented on the CHT (Continuous, Heating, Transformation) diagrams.
The CHT diagrams were made on the grounds of dilatograms recorded for quenched samples, heated with various rates. Also the methodology of the dilatometric samples preparation and the method of the characteristic points determination was described.
The investigated alloys are the model alloys. Taking into account their chemical compositions the possibility of improving their properties by means of the heat treatment can be expected. The investigations of the carbon influence on microstructures of model alloys with Cr-Mn-Mo were carried out. Broadening the knowledge on the carbon influence on the kinetics of phase transformations during continuous heating from as-quenched state, will help in designing new alloys with a better properties.
Effect of Crystallization on the Electrical Resistance and Structure of Amorphous Fe-Co-Cr-B-Si Alloys / Wpływ Krystalizacji Na Oporność Elektryczną I Strukturę Amorficznych Stopów Fe-Co-Cr-B-Si
Authors: Solomon H. , Solomon N. 
Published: June 2015

The goal of this paper is to present the influence of temperature variation and iron substitution with Co on the structure and electrical properties of amorphous Fe75-xCoxCr1B7Si17 alloys (where x=1, 4, 7, and 10 at.%), obtained by melt-spinning technique.
The electrical resistivity of the samples was measured by using a usual four-probe method from -160°C to 750°C. The electrical resistivity was also measured at room temperature for the amorphous Fe75-xCoxCr1B7Si17 ribbons annealed at various temperatures for different holding time.
The annealed samples were also investigated by Vickers microhardness test. The amorphous structure of tested materials was examined by X-ray diffraction (XRD), Mossbauer spectroscopy, differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) methods. Experimental results confirmed the utility of applied investigation methods and the influence of the Co content and annealing process on the crystallization, structure and electrical properties of examined amorphous alloys.