bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigating of a wide range of concentrations of multi-walled carbon nanotubes on germination and growth of castor seeds (Ricinus communis L.)
Authors: Fathi Zahra , Khavari Nejad Ramazan-Ali , Mahmoodzadeh Homa , Satari Taher Nejad 
Published: September 2017

Abstract
Carbon nanotubes act as regulators of plant germination and growth and are able to change the morphology and physiology of plant cells. The castor plant (Ricinus communis L.) belongs to the Euphorbiaceae family and is a very important medicinal plant. The aim of this study was to investigate the effect of 10 different concentrations of multi-walled carbon nanotubes (MWCNTs) (2, 5, 10, 20, 50, 75, 100, 125, 250 and 500 μg · ml−1) alongside the control under laboratory conditions on the germination and growth of castor seedlings. The results demonstrated that the maximum percentage of germination (96.7%) and relative germination percentage (100%) were found in the concentrations of 50 and 100 μg · ml−1, respectively, and the highest germination rate (53.3%) and the mean germination time (4.6 days) was seen in the concentration of 75 μg · ml−1. However, no statistically significant differences were found between the different concentrations in any of the germination factors. In the concentration of 100 μg · ml−1, there was a significant increase in the seedling vigor index I (400) when compared with the concentrations of 5 and 10 μg · ml−1. The maximum seedling vigor index II (11.3) was found in the concentration of 100 μg · ml−1 and was significantly different from the control and all applied concentrations. The length of radicle in the 100 and 125 μg · ml−1 had a significant increase when compared with the control and the concentrations of 10 and 50 μg · ml−1. The maximum seedling length (4.6 cm) was seen in the concentration of 100 μg · ml−1 where there was a significant increase with 10 μg · ml−1. Moreover, in the 100 μg · ml−1 concentration, the largest number of rootlets (8.6) was seen and when compared with the control and concentrations of 5, 10 and 50 μg · ml−1, there was a statistically significant increase. The maximum wet weight (0.3 g) and dry weight (0.1 g) of seedlings were obtained in the concentration of 100 μg · ml−1 and when compared with the control, there was a significant increase. It was found that in all factors related to the growth of seedlings, the concentrations of 10 and 50 MWCNTs had an inhibitory effect on the response index. The MWCNTs concentration of 100 μg · ml−1 was considered as the optimum concentration in the growth stage of castor seedlings.
Detection of nivalenol and deoxynivalenol chemotypes produced by Fusarium graminearum species complex isolated from barley in Iran using specific PCR assays
Authors: Chehri Khosrow , Godini Rasoul 
Published: September 2017

AbstractIn order to identify trichothecenes chemotypes produced byFusarium graminearumspecies complex (FGSC) isolated from barley, 68 barley samples were collected from markets in Kermanshah and Hamedan provinces, Iran. Thirty-oneFusariumisolates were obtained from grains and morphologically classified into three species FGSC (14),F. equiseti(9), andF. proliferatum(8). The identification of the members of FGSC was confirmed molecularly using Fg16F/Fg16R primers.Fusarium asiaticumisolates (4) were distinguished from other FGSC using Fg6CTPSf177/Fg16R primers. Polymerase chain reaction-based (PCRbased) detection of mycotoxin-synthesis-pathway gene was also used to determine the potential of the analysed strains to produce deoxynivalenol (DON), 15-acetyldeoxynivalenol (15-AcDON), 3-acetyldeoxynivalenol (3-AcDON), and nivalenol (NIV). Of 14 tested isolates, 10 and 4 isolates belonged to DON and NIV chemotype, respectively. Also, the results of DON chemotype survey using specific primers MinusTri7F/R and Tri315F/R showed 1 and 9 isolates produced 3-AcDON and 15-AcDON, respectively. These results show that DON was the most common chemotype in western Iran. To our knowledge, this is the first report on 15-AcDON, 3-AcDON, and NIV isolated from barley in Iran.
The use of expanded clay aggregate for the pretreatment of surface waters on the example of a tributary of Lake Klasztorne Górne in Strzelce Krajeńskie
Authors: Łopata Michał , Czerniejewski Przemysław , Wiśniewski Grzegorz , Czerniawski Robert , Drozdowski Jakub 
Published: September 2017

Abstract
The paper presents a proposal for the treatment of river water based on expanded clay (ceramsite). It is a lightweight mineral aggregate containing components relative to phosphorus adsorption (calcium, iron, manganese, aluminum). A pilot plant on a fractional technical scale was built on a nutrient rich (phosphorus up to 0.4 mg dm−3, nitrogen up to 10.0 mg dm−3), small (mean annual flow about 0.04 m3 s−1), natural watercourse (Młynówka River, a tributary of the Otok Channel, Noteć basin, the municipality of Strzelce Krajeńskie). The monitoring included quantitative and qualitative measurements of the water stream in 2014-2015. On the basis of the examinations, the calculated effectiveness of ceramsite filters in removing major contaminants from water was: for total nitrogen 5-6%, phosphorus 12-16%, and for suspensions 17-29%. The effectiveness of the treatment is highly influenced by hydraulic load, so this type application on a full-scale should occupy a sufficiently large volume. Taking into account simplicity of performance, ease of operation and low cost of construction and maintenance, such pretreatment plants based on expanded clay would seem to be a promising tool for the protection of surface waters in catchments of small rivers and streams.
Selected anionic and cationic surface active agents: case study on the Kłodnica sediments
Authors: Olkowska Ewa , Ruman Marek , Drąg-Śmigalska Magdalena , Polkowska Żaneta 
Published: September 2017

Abstract
Surface active agents (surfactants) are a group of chemical compounds, which are used as ingredients of detergents, cleaning products, cosmetics and functional products. After use, wastes containing surfactants or their degradation products are discharged to wastewater treatment plants or directly into surface waters. Due to their specific properties of SAAs, compounds are able to migrate between different environmental compartments such as soil, sediment, water or even living organisms and accumulate there. Surfactants can have a harmful effect on living organisms. They can connect with bioactive molecules and modify their function. Additionally, they have the ability to migrate into cells and cause their damage or death. For these reasons investigation of individual surfactants should be conducted. The presented research has been undertaken to obtain information about SAA contamination of sediment from the River Kłodnica catchment caused by selected anionic (linear alkylbenzene sulfonates (LAS C10-C13)) and cationic (alkylbenzyldimethylammonium (BDMA-C12-16), alkyl trimethyl ammonium (DTMA), hexadecyl piridinium chloride (HP) chlorides) surfactants. This river flows through an area of the Upper Silesia Industrial Region where various companies and other institutions (e.g. coal mining, power plants, metallurgy, hospitals) are located. To determine their concentration the following analytical tools have been applied: accelerated solvent extraction– solid phase extraction – high performance liquid chromatography – UV-Vis (anionic SAAs) and conductivity (cationic SAAs) detectors. In all sediments anionic SAAs have been detected. The concentrations of HTMA and BDMA-C16 in tested samples were higher than other cationic analytes. Generally, levels of surfactants with longer alkyl chains were higher and this observation can confirm their higher susceptibility to sorption on solid surfaces.
Morphogenetic diagnosis of developmental changes of Sea arrowgrass fruit (Triglochin maritima L.)
Authors: Toma Cezary , Efremov Andrew N. , Josefowska Wioleta 
Published: September 2017

Abstract
The aim of the study was to investigate the morphogenesis of particular developmental stages of T. maritima fruits; from the stage of the bud to the ripe fruit with the use of a scanning electron microscope (SEM), to learn about the morphology and anatomy of ripe fruit, find new diagnostic features of the fruits and verify T. maritima. fruit diagnosis. An optic microscope and Met - Ilo 8 image analyzer were used in the research. In the final part of the research, the occurrence of two diagnostic features was confirmed and seven new diagnostic features of ripe T. maritima fruit were demonstrated. The morphological development of T. maritima fruits is characterized by significant qualitative and quantitative changes of diagnostic value. The range of the changes in the size of T. maritima generative structures is well characterized by the data obtained from the image analyzer. T. maritima fruit diagnosis: dry, indehiscent achene partly syncarpic.
On generalized Ehresmann semigroups
Authors: Wang Shoufeng 
Published: September 2017

Abstract
As a generalization of the class of inverse semigroups, the class of Ehresmann semigroups is introduced by Lawson and investigated by many authors extensively in the literature. In particular, Gomes and Gould construct a fundamental Ehresmann semigroup CE from a semilattice E which plays for Ehresmann semigroups the role that TE plays for inverse semigroups, where TE is the Munn semigroup of a semilattice E. From a varietal perspective, Ehresmann semigroups are derived from reduction of inverse semigroups. In this paper, from varietal perspective Ehresmann semigroups are extended to generalized Ehresmann semigroups derived instead from normal orthodox semigroups (i.e. regular semigroups whose idempotents form normal bands) with an inverse transversal. We present here a semigroup C(I,Λ,E∘) from an admissible triple (I, Λ, E∘) that plays for generalized Ehresmann semigroups the role that CE from a semilattice E plays for Ehresmann semigroups. More precisely, we show that a semigroup is a fundamental generalized Ehresmann semigroup whose admissible triple is isomorphic to (I, Λ, E∘) if and only if it is (2,1,1,1)-isomorphic to a quasi-full (2,1,1,1)-subalgebra of C(I,Λ,E∘). Our results generalize and enrich some results of Fountain, Gomes and Gould on weakly E-hedges semigroups and Ehresmann semigroups.
The crystal structures of two 2-methoxycarbonylethyltin trichloride adducts
Authors: Guo Minghui , Lin Yichao , Yao Yanze , Tian Laijin 
Published: September 2017

AbstractThe crystal structures of two adducts of 2-methoxycarbonylethyltin trichloride with hexamethylphosphoryltriamide (HMPA) and 1,10-phenanthroline (phen), CH
Torsor Theory of Physical Quantities and their Measurement
Authors: Domotor Zoltan 
Published: September 2017

AbstractThe principal objective of this paper is to provide a torsor theory of physical quantities and basic operations thereon. Torsors are introduced in a bottom-up fashion as actions of scale transformation groups on spaces of unitized quantities. In contrast, the shortcomings of other accounts of quantities that proceed in a top-down axiomatic manner are also discussed. In this paper, quantities are presented as dual counterparts of physical states. States serve as truth-makers of metrological statements about quantity values and are crucial in specifying alternative measurement units for base quantities. For illustration and ease of presentation, the classical notions of length, time, and instantaneous velocity are used as primordial examples. It is shown how torsors provide an effective description of the structure of quantities, systems of quantities, and transformations between them. Using the torsor framework, time-dependent quantities and their unitized derivatives are also investigated. Lastly, the torsor apparatus is applied to deterministic measurement of quantities.
The Algebraic Structure of Quantity Calculus
Authors: Raposo Álvaro P. 
Published: September 2017

Abstract
The algebraic structure underlying the quantity calculus is defined axiomatically as an algebraic fiber bundle, that is, a base structure which is a free Abelian group together with fibers which are one dimensional vector spaces, all of them bound by algebraic restrictions. Subspaces, tensor product, and quotient spaces are considered, as well as homomorphisms to end with a classification theorem of these structures. The new structure provides an axiomatic foundation of quantity calculus which is centered on the concept of dimension, rather than on the concept of unit, which is regarded as secondary, and uses only integer exponents of the dimensions.
Measuring Software Test Verification for Complex Workpieces based on Virtual Gear Measuring Instrument
Authors: Yin Peili , Wang Jianhua , Lu Chunxia 
Published: September 2017

AbstractValidity and correctness test verification of the measuring software has been a thorny issue hindering the development of Gear Measuring Instrument (GMI). The main reason is that the software itself is difficult to separate from the rest of the measurement system for independent evaluation. This paper presents a Virtual Gear Measuring Instrument (VGMI) to independently validate the measuring software. The triangular patch model with accurately controlled precision was taken as the virtual workpiece and a universal collision detection model was established. The whole process simulation of workpiece measurement is implemented by VGMI replacing GMI and the measuring software is tested in the proposed virtual environment. Taking involute profile measurement procedure as an example, the validity of the software is evaluated based on the simulation results; meanwhile, experiments using the same measuring software are carried out on the involute master in a GMI. The experiment results indicate a consistency of tooth profile deviation and calibration results, thus verifying the accuracy of gear measuring system which includes the measurement procedures. It is shown that the VGMI presented can be applied in the validation of measuring software, providing a new ideal platform for testing of complex workpiece-measuring software without calibrated artifacts.
Efficiency enhancement of InGaN amber MQWs using nanopillar structures
Authors: Ou Yiyu , Iida Daisuke , Liu Jin , Wu Kaiyu , Ohkawa Kazuhiro , Boisen Anja , Petersen Paul Michael , Ou Haiyan 
Published: September 2017

Abstract
We have investigated the use of nanopillar structures on high indium content InGaN amber multiple quantum well (MQW) samples to enhance the emission efficiency. A significant emission enhancement was observed which can be attributed to the enhancement of internal quantum efficiency and light extraction efficiency. The size-dependent strain relaxation effect was characterized by photoluminescence, Raman spectroscopy and time-resolved photoluminescence measurements. In addition, the light extraction efficiency of different MQW samples was studied by finite-different time-domain simulations. Compared to the as-grown sample, the nanopillar amber MQW sample with a diameter of 300 nm has demonstrated an emission enhancement by a factor of 23.8.
The Soul and Personal Identity. Derek Parfit’s Arguments in the Substance Dualist Perspective
Authors: Sepetyi Dmytro 
Published: September 2017

Abstract
This paper re-evaluates Derek Parfit’s attack on the commonly held view that personal identity is necessarily determinate and that it is what matters. In the first part we first argue against the Humean view of personal identity; secondly, we classify the remaining alternatives into three kinds: the body theory and the brain theory, the quasi-Humean theory, and the soul theory, and thirdly we deploy Parfit’s arguments and related considerations to the point that none of the materialistic alternatives is consistent with the commonly held view. This leaves us with the alternative: either we accept the radical and highly implausible materialistic view Parfit calls ‘Reductionism’, or we accept the view that we are nonphysical indivisible entities—Cartesian egos, or souls. The second part of the paper discusses Parfit’s objections against the Cartesian view: that there is no reason to believe in the existence of such nonphysical entities; that if such entities exist, there is no evidence that they are enduring (to span a human life); that even if they exist and are enduring, they are irrelevant for the psychological profile and temporal continuity of a person; that experiments with ‘brain-splitted’ patients provide strong evidence against the Cartesian view. We argue that these objections are in part mistaken, and that the remaining (sound) part is not strong enough to make the Cartesian view less plausible than Reductionism.
Jacques Derrida’s (Art)Work of Mourning
Authors: Antal Eva 
Published: September 2017

AbstractDerrida’s highly personal mourning texts are collected and published in a unique book under the titleThe Work of Mourningedited by Pascale-Anne Brault and Michael Naas, two outstanding translators of Derrida’s works. The English collection is published in 2001, while the French edition came out later in 2003 titledChaque fois unique, la fin du monde(Each Time Unique, the End of the World). In hisdeconstructed eulogies, Derrida, being in accordance with ‘the mission impossible’ of deconstruction, namely, ‘to allow the coming of the entirely other’ in its otherness, seems to find his own voice. In my paper, I will focus on this special segment of Derrida’s death-work (cf. life-work); namely, on his mourning texts writtenforhis dead friends, paying special attention to the rhetoric ‘circling around’ fidelity, friendship, and the other in histextualmourning.
Marilynne Robinson, Gilead, and the Battle for the Soul
Authors: Aronowicz Annette 
Published: September 2017

Abstract
A widespread view among contemporary philosophers and scientists is that the soul is a mystification. For Marilynne Robinson, American essayist and novelist, the crux of the matter is not the existence of the soul in itself, since this cannot be settled by debate. Rather, she challenges the sort of evidence that her opponents—mostly basing themselves on the work of neuroscientists, and evolutionary biologists—deem to be decisive in determining the question. The soul, she claims, does not appear at the level of our genes and neurons. Rather it is encountered in the many works of art and reflection that human beings have produced from the earliest times. This paper will focus on one such document, Robinson’s novel Gilead (2004), in which she proposes a vision of the soul closely allied to the notion of blessing. Blessing, in turn, is inseparable from metaphor, pointing us to mystery, an elusive reality whose presence we experience only intermittently, although it is always there. Although Robinson’s several collections of essays provide needed context for the view of the soul displayed in the novel, it is our claim that it is the novel that truly turns the tables in the debate, inviting the reader to affirm or deny the soul’s reality not on the basis of the pronouncement of experts but on the basis of the way a given language aligns with experience. The internalization that such a process requires reveals the soul in action. This paper is thus a reading of Robinson’s writings on the soul.
Study on the adhesive properties of reactive liquid rubber toughened epoxy-clay hybrid nanocomposites
Authors: Szymańska Jowita , Bakar Mohamed , Białkowska Anita , Kostrzewa Marcin 
Published: September 2017

Abstract
The present work investigates the adhesive properties and morphology of diglycidyl ether of bisphenol A nanocomposites modified with reactive butadiene acrylonitrile copolymers having different amine equivalent weight. Tensile adhesive strength and shear adhesive strength of epoxy resin were significantly increased due to reactive rubbers and nanoparticles (ZW1) incorporation to the epoxy matrix. Hybrid composites based on 1 wt% ZW1 and 10 wt% ATBN-16, 1 wt% ZW1 and 15 wt% ATBN-21 exhibited maximum adhesive strength in comparison with neat epoxy resin as well as epoxy nanocomposite containing 1% ZW1. Tensile adhesive strength of hybrid composites containing 1% ZW1 and 10% ATBN-16 as well as 1% ZW1 and 15% ATBN-21 was maximally enhanced. The fracture surfaces of epoxy hybrid composites showed significant plastic yielding together with delaminated and stratified structures, explaining thus the increase of the adhesive strength of tested composites. This finding was confirmed by FTIR spectra in terms of chemical reactions occurrence between the reactive rubbers and epoxy matrix.
Electrospinning of poly(lactic acid)/polycaprolactone blends: investigation of the governing parameters and biocompatibility
Authors: Zhang Chunmei , Zhai Tianliang , Turng Lih-Sheng 
Published: September 2017

Abstract
Blends of poly(lactic acid)/polycaprolactone (PLA/PCL) were electrospun under various conditions to study the influence of solution concentration, feed rate and voltage supply on the morphology of the nanofibers. To improve compatibility and to help produce fine electrospun nanofibers, an L-lactide/caprolactone (LACL) copolymer was introduced as a compatibilizer in the PLA/PCL blends. It was found that the solution concentration was a principal governing factor. The mean diameter of the fibers increased with the solution concentration, feed rate and voltage. Too high of a concentration and feed rate caused the fibers to stick to each other. A slow feed rate, 10% solution concentration, and 20 kV voltage were capable of producing thin, smooth and uniform fibers. Preliminary biocompatibility assays of the nanofibers were conducted with NIH 3T3 cells. The cells grown on the nanofiber blend exhibited spindle-like morphologies. The addition of PCL and LACL copolymer was found to improve the biocompatibility of PLA nanofibers, suggesting their potential application as cell culture scaffolds.
In Vivo Packaging of mRNA in Yeast-Produced Bacteriophage GA Derived Virus-Like Particles
Authors: Ārgule Dagnija , Cielēns Indulis , Renhofa Regīna , Strods Arnis 
Published: September 2017

Abstract
Bacteriophage GA coat protein formed self-assembly competent virus-like particles (VLPs) have been expressed previously in bacterial and yeast cells. On the basis of our previous experiments on the yeast vector pESC-URA / S. cerevisiae system containing two oppositely oriented promoters, new constructions were created with point-mutations in coat protein to mimic phage MS2-like RNA binding characteristics. Simultaneously, the MS2 operator sequence was added to mRNA desired for packaging. After the introduction of single-point mutations (S87N, K55N, R43K) and double-point mutations (S87N + K55N and S87N + R43K), the coat protein’s ability to form VLPs was retained, but yield from cells was decreased. Exchange of the 87th Ser to Asn in coat protein sequence in combination with bacteriophage MS2 translational operator provided specific packaging of the gene of interest (GFP). Although non-specific nucleic acid sequences were packaged, the remarkable specificity for packaging of the gene of interest can be achieved using the described approach.
Enzymatic Hydrolysis of Lignocellulose for Bioethanol Production
Authors: Rozenfelde Linda , Puķe Māris , Krūma Irēna , Poppele Ieva , Matjuškova Nataļja , Vederņikovs Nikolajs , Rapoport Alexander 
Published: September 2017

AbstractThe effect of temperature, time and amount of enzyme on hydrolysis of wheat straw lignocellulose remaining after furfural production was studied. The residual substrate was subjected to enzymatic hydrolysis at different temperatures — 45 °C, 50 °C and 55 °C. Hydrolysis time was 72 hours, and samples were taken every 24 hours. The maximum glucose yield (76.5% of the theoretically possible) was reached when hydrolysis temperature 50 °C was used. The production rate of glucose increased with a hydrolysis period of time. The yield of glucose significantly depended on the ratio of enzyme to substrate.