bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of genetic diversity and population structure of five yellow catfish Pelteobagrus fulvidraco populations by microsatellite markers
Authors: Zhong Liqiang , Wang Minghua , Pan Jianlin , Li Daming , Tang Shengkai , Bian Wenji , Chen Xiaohui 
Published: June 2018

Abstract
Yellow catfish, Pelteobagrus fulvidraco, is an important commercial freshwater species in China. Knowledge about the genetic diversity of the yellow catfish is important to support the management and conservation programs, which would subsequently support the sustainable production of this species. To investigate the genetic diversity and the structure of yellow catfish in the middle and lower reaches of the Yangtze River, 125 individuals from five lakes were genotyped using 13 microsatellite markers. Moderate genetic diversity was determined in all populations, with the observed heterozygosity (H
O) ranging from 0.42 to 0.49 and the expected heterozygosity (H
E) ranging from 0.51 to 0.61. Low to moderate genetic differentiation among the populations was revealed from pairwise F
ST values (p < 0.05), as well as from analysis of molecular variance (AMOVA). The UPGMA dendrogram and Bayesian clustering analysis indicated a correlation between genetic differences and geographic distance – four populations from the lower reaches clustered together, whereas the Poyang Lake (PY) population formed a separate cluster. The present study would be helpful in the wild stock management and artificial propagation programs for yellow catfish in the middle and lower reaches of the Yangtze River.
Ascidian diversity (Chordata: Tunicata) from Andaman and Nicobar Islands, India
Authors: Murugan Rajaram , Ananthan Gnanakkan 
Published: June 2018

Abstract
Ascidians are filter-feeding sac-like marine urochordates of great evolutionary, ecological and economic importance. Andaman and Nicobar Islands are one of the most important hot spots of biodiversity in India, while the ascidian diversity of this region is very scanty. Ascidians belonging to 29 species were identified at the Andaman and Nicobar Islands during the field research carried out from March 2014 to April 2015. Eight species (Didemnum granulatum, Didemnum molle, Didemnum psammatodes, Diplosoma listerianum, Lissoclinum fragile, Lissoclinum levitum, Lissoclinum patella, Trididemnum Cyclops) from the Didemnidae family were found and identified. Various diversity indices, such as the Shannon -Wiener index (H’), Margalef’s index (D), Pielou’s index (J’), K-dominance curves, Cluster Analysis and Multidimensional Scaling, were used to analyze the diversity, richness and evenness of species, and to compare the diversity between samples and their resemblance in terms of species composition. The maximum species richness was observed in Campbell Bay (2.424) and the minimum in Haddo Wharf (0.910). This finding shows the rich species diversity of ascidian fauna at Andaman and Nicobar Islands.
Spatial variability of long-term trends in significant wave height over the Gulf of Gdańsk using System Identification techniques
Authors: Badur Jordan , Cieślikiewicz Witold 
Published: June 2018

Abstract
The significant wave height field over the Gulf of Gdańsk in the Baltic Sea is simulated back to the late 19th century using selected data-driven System Identification techniques (Takagi-Sugeno-Kang neuro-fuzzy system and non-linear optimization methods) and the NOAA/OAR/ESRL PSD Reanalysis 2 wind fields. Spatial variability of trends in the simulated dataset is briefly presented to show a cumulative “storminess” increase in the open, eastern part of the Gulf of Gdańsk and a decrease in the sheltered, western part of the Gulf.
Texte, discours, cognition
Authors: Achard-Bayle Guy 
Published: June 2018

Résumé
Le but de cet article est d’interroger les trois notions de texte, discours et cognition, et les modèles théoriques, complémentaires ou opposés, qui les illustrent et les défendent. Pour cela, les notions ne seront pas analysées à la suite, une par une, mais en parallèle, deux par deux. Reprenant les orientations de mes travaux actuels en linguistique textuelle et en linguistique cognitive, je les confronterai en deux temps : texte vs. discours et texte vs. cognition. Cette double confrontation, avec le texte pour dénominateur commun, laisse ainsi entendre, d’une part, que si je prends en compte le discours comme le cadre contextuel, situationnel, générique, où apparaît le texte, je m’attache au texte comme objet d’analyse, suivant en cela une tradition « pragoise », à la fois structurale ou macro-syntaxique et fonctionnelle ; cela laisse entendre, d’autre part, que cette conception du texte permet de concilier les théories néo-pragoises à celles que développent les linguistiques cognitives d’aujourd’hui, centrées sur diverses compétences, activités ou opérations, mentales, sémantiques, pragmatiques et sémiotiques, souvent regroupées sous le terme englobant ou résultant de représentation : espaces mentaux, projections, mélange (blending), émergence de sens. Pour finir je montre que la procédure de double intégration, conceptuelle et prédicative, permet d’illustrer la complémentarité des deux modèles, mental-cognitif et macrosyntaxique-textuel.
Center of Pressure Trace and Sensory Components of the Limits of Stability Test in Older Adults With Vertebral Compression Fractures
Authors: Kuo Fang-Chuan , Chang Shin-Tsu , Liao Yin-Yin , Lee Cheng-Hung 
Published: June 2018

Background and Purpose:
Patients with vertebral compression fracture (VCF) usually exhibit impaired postural control and consequently are at an increased risk of falling. This study aimed to assess the sensory and kinematic components of the limits of stability (LOS) test in patients with VCF.

Methods:
This study enrolled 13 adults with VCF (VCF group), 13 older adults without spinal deformity (NE group), and 13 young adults (NY group). The Biodex balance system was employed to calculate the balance score and the LOS of participants. An inertia motion system was used to record kinematic data. The center of pressure signals of postural stability and LOS were used to calculate the frequency power spectrum for interpreting the sensory component.

Results:
Compared with the NY group, the VCF group exhibited a longer reaction time and lower balance scores and used a higher median frequency in the medial-lateral and anterior-posterior direction of body acceleration to perform the LOS test. The required ranges of hip rotation and pelvic pitch were significantly higher in the older adult group than in the NY group. In the postural stability test, the VCF group exhibited significantly higher frequency power in the 0.01- to 0.5-Hz band (visual and vestibular) under both the eyes-closed and eyes-open conditions than the other groups. In the LOS test, the VCF group also exhibited lower sensory component activity than the other groups, particularly in vestibular function (0.1-0.5 Hz).

Conclusions:
Both musculoskeletal degeneration and sensory integration impairment may contribute to poor direction control and a longer reaction time in patients with VCF.
Influence of Environmental Conditions on the Performance of Bituminous Mixtures
Authors: Das Bhaskar Pratim , Bhargava Nishant , Siddagangaiah Anjan Kumar 
Published: June 2018

AbstractAging and moisture damage are considered as major environmental factors which affect the performance of bituminous mixtures. This study investigated the effect of aging and moisture invasion on the performance of bituminous mixtures in terms of tensile strength and rutting resistance. Two different types of aggregates sources and one unmodified bituminous binder with and without warm additive were used. Bituminous mixtures were subjected to two levels of aging conditions (short-term and long-term aged) and two levels of moisture conditions (1 and 3 freeze-thaw cycles). A total of 24 different combinations were investigated for tensile strength and permanent deformation characteristics. Mineralogical investigations characterized the crushed stone as calcareous and bank run as siliceous aggregates. Results from this study demonstrate that levels of aging had a significant impact on the tensile strength of bituminous mixtures with warm mix additive as compared to conventional bituminous mixtures. Fracture work density, a surrogate cracking parameter was able to adequately capture the influence of aggregate mineralogy on the moisture susceptibility of long term aged mixtures. In addition, moisture conditioning was found to influence fracture work density of mixtures more than aging. Further, the rutting resistance of mixtures was determined in terms of flow numbers obtained using Francken model. In general, the rutting resistance of conventional mixtures was relatively higher than a mixture with warm mix additive. As expected, the flow number of conventional mixtures increased with aging and further reduced with moisture conditioning. Interestingly, the flow numbers of bituminous mixtures with warm mix additive was not negatively impacted by moisture at short term aged conditions. However, flow number of both mixtures after long term aging exhibited a similar trend. Additionally, statistical analysis showed that an increase in freeze-thaw cycles from one to three did not significantly impact the tensile characteristics of the mixtures.
Overconsolidation and Cementation in Sands: Impacts on Geotechnical Properties and Evaluation Using Dilatometer Tests
Authors: Choo Hyunwook , Lee Woojin , Lee Changho 
Published: June 2018

Abstract
Both overconsolidated and cemented soils, which are very common in nature, show very distinctive behaviors (e.g., increased strength and stiffness) compared to normally consolidated (NC) soils, uncemented soils, or both. Therefore, the characterization of soil properties in an overconsolidated/cemented state is important in many geotechnical projects for the safe and economical design and analysis of geostructures. Although there have been many attempts to evaluate overconsolidated or cemented sediments using in situ tests, the complexity of the behaviors of overconsolidated or cemented sands has contributed to the difficulty in interpreting in situ test results. Among the various in situ testing methods, such as the cone penetration test, the dilatometer test (DMT), the standard penetration test, and others, the DMT is very sensitive to the stress history effect and overconsolidation in sand. Therefore, the impacts of overconsolidation and cementation on geotechnical properties of sands are reviewed first in this study, and then the methods for evaluating overconsolidation and cementation in sands using DMTs are reviewed/suggested.
Infrared Spectroscopy Analysis of the Blending of Virgin and RAP Binders in Hot Recycled Asphalt Mixture with CTBN as Tracer
Authors: Yang Zhen , Xu Wei 
Published: June 2018

Abstract
This study conducted an infrared analysis of a recycled asphalt mixture that contains a high percentage of reclaimed asphalt pavement (RAP) and uses carboxyl-terminated butadiene acrylonitrile (CTBN), which has an absorption peak at 2,238 cm−1, as a tracer in the virgin asphalt. The infrared spectroscopy results of the asphalt test specimens containing 1–15 wt. % of CTBN indicated that 5 wt. % virgin asphalt is most appropriate. Infrared spectroscopy was performed on specimens of recycled asphalt mixture that contained 45 % RAP, and a statistical analysis was performed on the results. The results indicated that the virgin and RAP asphalt binders were not completely mixed, as is typically assumed. The blending degree of the virgin binder and RAP binder in the outer layer of the RAP aggregate particles was higher than that in the inner layer. The blending degree is inhomogeneous and has a three-dimensional hierarchy that depends on the depth and location of the asphalt mastic membrane over the aggregate.
Improvements in the Hole-Drilling Test Method for Determining Residual Stresses in Polymeric Materials
Authors: Valentini Emilio , Bertelli Lorenzo , Benincasa Alessio 
Published: June 2018

Abstract
This article describes some improvements of the hole-drilling test method to increase the accuracy in determining residual stresses in polymeric materials. Unlike traditional applications of the hole-drilling technique to metals, when applied to polymers, it is essential to take into account important aspects such as the influence of ambient temperature, local heating, and thermal and mechanical effects generated by drilling operations. Unfilled polymers have a great coefficient of linear thermal expansion range, but the strain gauges for residual stresses available on the market are self-compensated only for some metallic materials. Furthermore, their low thermal diffusivity and the strong temperature dependence of their mechanical properties, notably, elastic modulus, creep, and relaxation, could determine local heating problems. The article investigates the hole-drilling technology on these materials and presents a testing procedure suitable for minimizing sources of error. The tests are carried out in a temperature-controlled test environment, and drilling is performed using the automatic drilling technique with a remote control, rather than a manual, drilling technique. Selections of the drilling rotational speed, feed rate, and type of drilling cutter are examined in detail. In order to validate the measurement approach, the experimental results obtained with a bending test bench on a polyethylene terephthalate sample are shown.
Chromatin That Guides Dosage Compensation Is Modulated by the siRNA Pathway inDrosophila melanogaster
Authors: Deshpande Nikita , Meller Victoria H 
Published: June 2018

AbstractA family of X-linked repetitive elements enhances dosage compensation of nearby genes in male flies. Here, Deshpande and Meller show that chromatin around these repeats is modified in a siRNA-dependent manner. Proteins that interact with the siRNA effector...Many heterogametic organisms adjust sex chromosome expression to accommodate differences in gene dosage. This requires selective recruitment of regulatory factors to the modulated chromosome. How these factors are localized to a chromosome with requisite accuracy is poorly understood. Drosophila melanogaster males increase expression from their single X chromosome. Identification of this chromosome involves cooperation between different classes of X-identity elements. The chromatin entry sites (CES) recruit a chromatin-modifying complex that spreads into nearby genes and increases expression. In addition, a family of satellite repeats that is enriched on the X chromosome, the 1.688X repeats, promotes recruitment of the complex to nearby genes. The 1.688X repeats and CES are dissimilar, and appear to operate through different mechanisms. Interestingly, the siRNA pathway and siRNA from a 1.688X repeat also promote X recognition. We postulate that siRNA-dependent modification of 1.688X chromatin contributes to recognition of nearby genes. In accord with this, we found enrichment of the siRNA effector Argonaute2 (Ago2) at some 1.688X repeats. Mutations in several proteins that physically interact with Ago2, including the histone methyltransferase Su(var)3-9, enhance the lethality of males with defective X recognition. Su(var)3-9 deposits H3K9me2 on some 1.688X repeats, and this mark is disrupted upon ectopic expression of 1.688X siRNA. Furthermore, integration of 1.688X DNA on an autosome induces local H3K9me2 deposition, but enhances expression of nearby genes in a siRNA-dependent manner. Our findings are consistent with a model in which siRNA-directed modification of 1.688X chromatin contributes to recognition of the male X chromosome for dosage compensation.
MODIFIED LAMINOPLASTY AFTER EXCISION OF CERVICAL SCHWANNOMA WITH LARGE EXTRAVERTEBRAL EXTENSION
Authors: Faris Muhammad , Bajamal Abdul Hafid , Bajamal Zaky , Prihastomo Krisna Tsaniadi 
Published: June 2018

Tumour excision and laminoplasty are commonly performed as surgical treatment of extra vertebral extension of cervical schwannoma. It is worth knowing that the conventional technique of multilevel laminectomy may hinder younger patients in the long-term. This article reports a 30-year old man with an intradural-extramedullary tumour which extended from C4 to T1 that underwent modified laminoplasty. This modified technique is preferable in maintaining the anteroposterior diameter of spinal canal as well as reducing the displacement of guttered laminae
Solving a nonlinear biharmonic boundary value problem
Authors: A Dang Quang , Hai Truong Ha , Huong Nguyen Thanh , Quy Ngo Thi Kim 
Published: June 2018

In this paper we study a boundary value problem for a nonlinear biharmonic equation, which models a bending plate on nonlinear elastic foundation. We propose a new approach to existence and uniqueness and numerical solution of the problem. It is based on the reduction of the problem to finding fixed point of a nonlinear operator for the nonlinear term. The result is that under some easily verified conditions we have established the existence and uniqueness of a solution and the convergence of an iterative method for the solution. The positivity of the solution and the monotony of iterations are also considered. Some examples demonstrate the applicability of the obtained theoretical results and the efficiency of the iterative method.
Agave americana and Furcraea andina : Key Species to Andean Cultures in Ecuador
Authors: De la Torre Lucía , Cummins Ian , Logan-Hines Eliot 
Published: June 2018

Background: The rich Agaveae-based culture that exists in the Ecuadorian Andes is little known. Wild and cultivated rosettes of Agave americana and Furcraea andina coexist in arid Andean landscapes. A. americana is considered an introduced species to Ecuador.Questions: What are Agaveae use patterns and cultural importance in the Ecuadorian Andes? Is the ethnobotanical significance of Agave in Ecuador comparable to that in Mexico and other Andean countries?Species studied: Agave americana, Furcraea andina Study site, dates: Ecuadorian Andes, 2016.Methods: Semi-structured interviews to Agaveae users (37) and a review of literature on ethnobotanical research conducted in Ecuador since the 18th century.Results: A. americana is more diversely and widely used than F. andina (124 vs 36 uses and 548 vs 140 use records, respectively). The versatility of A. americana lies in its mishki (sap extracted from its heart) which has multiple medicinal, edible and ceremonial applications. We found significant variation of its use patterns throughout the region. The main use of F. andina as a source of fiber is disappearing. Most productive initiatives involve A. americana (92 %, n = 53).Conclusion: The importance of A. americana in the Ecuadorian Andes is comparable to that of agaves in Mexico, but not to its importance in other Andean countries where it is used sporadically. It can be considered a cultural keystone species. F. andina could have had that role in the past. A. americana versatility and availability through cultivation could explain why, irrespective of whether or not it is introduced, it remains an icon of identity and cultural cohesion in the Ecuadorian Andes.
Narrative Shifts: Race, Culture, and the Production of Screendance
Authors: White Marcus R 
Published: June 2018

Moving 24fps is a platform where teams of one professional dance maker and one filmmaker are paired to create work in a single weekend. These ‘creatives’ make work as a part of the touring Festival: It focuses exclusively on the production of screendance and is situated within various ‘partner cities’. This article is informed by a collection of both informal and open forum interviews with over 25 creatives about their experience inside the project. We were curious how screendance can be used as a tool to help shape and reimagine each cities narrative as it relates to identity politics and what it could reveal about a national discourse of race and culture within the production of screendance. For the purposes of this journal, individual dance shorts from the Moving 24fps Detroit project will be used as case studies to examine the creative process and to investigate representation, equity, and inclusion in screendance curation and production.Two questions that frame this entire paper: What considerations and choices do creatives make to center race and geo-politics within their city? How does the project create or promote equity in dance film curation?
Further Results on Locating Chromatic Number for Amalgamation of Stars Linking by One Path
Authors: Asmiati A. , Yulianti Lyra , Widyastuti C. Ike Tri 
Published: June 2018

Let G = (V,E) be a connected graph. Let c be a proper coloring using k colors, namely 1, 2,·s, k. Let <span style="font-family: symbol;">P</span>={S<sub>1</sub>, S<sub>2</sub>,..., S<sub>k</sub>} be a partition of V(G) induced by c and let S<sub>i</sub> be the color class that receives the color i. The color code, c<sub><span style="font-family: symbol;">P</span></sub>(v)=(d(v,S<sub>1</sub>), d(v,S<sub>2</sub>),...,d(v,S<sub>k</sub>)), where d(v,S<sub>i</sub>)=min {d(v,x)|x <span style="font-family: symbol;">Î</span> S<sub>i</sub>} for i <span style="font-family: symbol;">Î</span> [1,k]. If all vertices in V(G) have different color codes, then c is called as the \emphlocating-chromatic k-coloring of G. Minimum k such that G has the locating-chromatic k-coloring is called the locating-chromatic number, denoted by <span style="font-family: symbol;">c</span><sub>L</sub>(G). In this paper, we discuss the locating-chromatic number for n certain amalgamation of stars linking a path, denoted by nS<sub>k,m</sub>, for n ≥ 1, m ≥ 2, k ≥ 3, and k&gt;m.
Special Issue on Cutting Edge of Drone Research and Development, and its Application
Authors: Nonami Kenzo , Suzuki Satoshi 
Published: June 2018

Currently, drones have reached the stage of practical application, business, and social contribution from the stage of research and development. In fact, drones are now opening up a new market not only in the field of aerial photography and agricultural chemical spraying, which had traditionally been on the market, but also in the field of surveying. Furthermore, new markets are expected to be formed within several years in the field of infrastructure inspection and logistics.
Under these circumstances, research on drone application is becoming significant, along with research on drone design and control, which have been done conventionally. However, there are still only a few studies and journals focusing not only on drone development and design but also drone application. Therefore, in this special issue, we invited papers with comprehensive contents, including research focusing on drone application, and created a space to present cutting-edge research results.
By reading this special issue, we hope that readers will understand the latest information about the applications of drones and their cutting-edge technology. Furthermore, we also hope that readers will be able to proactively promote the use of drones in their own research and work, based on the information obtained from this special issue.