bluuebunny/crossref_metadata_2025_split huggingface dataset:
Continuous fabrication of near-infrared light responsive bilayer hydrogel fibers based on microfluidic spinning
Authors: Zhou Meiling , Gong Jinghua , Ma Jinghong 
Published: June 2019

AbstractHydrogel microfibers with inhomogenous structure can achieve some complex motions such as bending, folding and twisting. So it can be applied to soft actuators, soft robots and micropumps. In this paper, continuous bilayer hydrogel fibers in which one layer is calcium alginate hydrogel and the other is linear poly(N-isopropylacrylamide) (PNIPAM)/calcium alginate/graphene oxide (GO) semi-interpenetrating hydrogel were prepared based on microfluidic spinning method. The results show that the bilayer hydrogel fibers have particular porous internal structures of semi-IPN hydrogels and the pore size becomes smaller with the increase of GO content. Besides, the bilayer hydrogel fibers can bend response to the temperature and near-infrared (NIR) light. The diameter of the hydrogel fibers can be tuned by changing the flow rate of spinning fluid and the take-up velocity of winding device.
Fully water-blown polyisocyanurate-polyurethane foams with improved mechanical properties prepared from aqueous solution of gelling/ blowing and trimerization catalysts
Authors: Sukkaneewat Benjatham , Sridaeng Duangruthai , Chantarasiri Nuanphun 
Published: June 2019

AbstractFully water-blown polyisocyanurate-polyurethane (PIR-PUR) foams with improved mechanical properties have been prepared using aqueous solutions of metal-ammonia complex, Cu(Am) or Zn(Am), as gelling/blowing catalysts and potassium octoate (KOct) solution in diethylene glycol as a trimerization catalyst. Two catalyst mixtures, Cu(Am)+KOct and Zn(Am)+KOct, were obtained as homogeneous aqueous solutions. In comparison to commercial catalyst system, DMCHA+KOct (DMCHA = N,N-dimethylcyclohexylamine), Cu(Am) and Zn(Am) could be miscible with KOct solution and water easier than DMCHA. This miscibility improvement led Cu(Am)+KOct and Zn(Am)+KOct to show faster catalytic reactivity in PIR-PUR foam reactions than DMCHA+KOct. All obtained PIR-PUR foams showed self-extinguishing properties and achieved HF1 materials. However, PIR-PUR foams prepared from Cu(Am)+KOct and Zn(Am)+KOct at NCO:OH ratio of 2:1 had suitable density for industrial applications and showed higher compressive strength than that prepared from DMCHA+KOct. These foams have high potential to apply as insulations for constructions, core laminates in wall panel or storage tanks.
γ-valerolactone (GVL) as a bio-based green solvent and ligand for iron-mediated AGET ATRP
Authors: Shen XianRong , Xia DengZhou , Xiang YiXin , Gao JianGang 
Published: June 2019

AbstractIn this paper, γ-valerolactone (GVL), a bio-based polar solvent, was applied as green solvent for iron(III)-catalyzed AGET ATRP without any external ligand. GVL is a fully degradable, non-toxic green solvent and has complex ability to iron halide complexes through –OCO- group. GVL as the solvent and the ligand for AGET ATRP of MMA in a controlled manner, as proved by kinetic study, the low PDI values and the increase in polymer molecular weight versus monomer conversion. Chain re-initiation experiments and 1HNMR characterization were conducted to further confirm the living feature.
Revealing key parameters to minimize the diameter of polypropylene fibers produced in the melt electrospinning process
Authors: Daenicke Jonas , Lämmlein Michael , Steinhübl Felix , Schubert Dirk W. 
Published: June 2019

AbstractThis study deals with the subject of optimizing the melt electrospinning process of polypropylene with the aim of producing nanoscale fibers. A feasibility study with two polypropylene types and different additives to adapt the material composition is performed. The polypropylene types are of different molar masses to adapt the viscosity to the process. The used additives, sodium stearate and Irgastat®P 16, have a positive effect on the electrical conductivity of the polymer melt. In addition, process parameter optimization is done by varying the climate chamber temperature, using different collector voltages and varying the nozzle-collector distance. A strong influence of the climate chamber temperature has been proven and leads to a desired temperature of 100°C. The fiber diameter is dependent on process parameters, material melt viscosity and electrical conductivity. With optimized process and material parameters, the fiber diameter could be minimized to a median value of 210 nm.
Beyond Consumer Law – Small Enterprises, Independent Contractors and other Professional Weak Parties
Authors: Rinaldo Carlotta 
Published: June 2019

Abstract
The need to protect weak parties from unfair standard contract terms does not only exist in b2c relationships, as one could at first sight believe. In business contracts also, entrepreneurs and other professionals can be subservient to their counterparty. Accordingly, this may result in an asymmetrical situation posing the same problems that are usually addressed in consumer contracts. On the grounds of these introductory considerations, this paper aims at analysing the problem from a European point of view, with special attention to the Italian legal system. A variety of different solutions – depending on the single rationales of the different legal systems at issue – emerges, offering de iure condendo a good starting point for a fresh and novel pragmatic approach.
The Impact of Affordable Care Act Medicaid Expansions on Applications to Federal Disability Programs
Authors: Anand Priyanka , Hyde Jody Schimmel , Colby Maggie , O’Leary Paul 
Published: June 2019

Abstract
In this paper, we estimate the impact of Medicaid expansions via the Patient Protection and Affordable Care Act (ACA) on applications to federal disability programs in 14 states that expanded Medicaid in January 2014. We use a difference-in-differences regression model to compare disability application rates in geographic areas within states that expanded Medicaid to rates in areas of non-expansion states that were carefully selected using a matching approach that accounts for state Medicaid policies pre-ACA as well as demographic and socioeconomic characteristics that might influence disability application rates. We find a slower decrease in Supplemental Security Income (SSI) application rates after Medicaid expansions in expansion states relative to non-expansion states, with application rates declining in both state groups from 2014 through 2016. Our analysis of the impact of the Medicaid expansions on Social Security Disability Insurance (SSDI) application rates was inconclusive for reasons we discuss in the paper.
Efficient and selective microwave-assisted O-methylation of phenolic compounds using tetramethylammonium hydroxide (TMAH)
Authors: Gholipour Fatemeh , Rahmani Mohammad , Panahi Farhad 
Published: June 2019

Abstract
In this study, an efficient method for O-methylation of phenolic compound using tetramethylammonium hydroxide (TMAOH) as a new alkylating agent under microwave irradiation was developed. Ethanol was selected as a green reaction media to accomplish this protocol under environmentallybenign conditions. Less than half hour time is needed to obtain good to excellent yields of products at temperature of about 120°C. Using this procedure, phenolic compounds could be converted to the corresponding aryl methyl derivatives quickly. The results indicated that different phenolic compounds bearing both electron-withdrawing and electron-donating groups are O-methylated effectively using TMAOH under microwave irradiation. This novel protocol has many improvements in view point of reaction yields, selectivity and conditions compared to previous studies. Trimethylamine and water were the side products of O-methylation reaction which can be recovered easily from the product mixture. This methodology showed high selectivity for O-methylation and no C-methylated products were observed.
Green synthesis, anionic polymerization of 1,4-bis(methacryloyl)piperazine using Algerian clay as catalyst
Authors: Derkaoui Samira , Kherroub Djamal Eddine , Belbachir Mohammed 
Published: June 2019

AbstractIn this work, a chain of reactions has been proposed as a new heterogeneous technique, based on the use of natural treated clays as an environmentally friendly catalysts for the synthesis of poly(1,4-bis(methacryloyl)piperazine). We first synthesized the monomer; 1,4-bis(methacryloyl)piperazine (NBMP) in bulk (without solvent) by the condensation of heterocyclic secondary amines piperazine with methacrylic anhydride catalyzed by maghnite-H+at room temperature during 2 h. After that, we have polymerized anionically the obtained NBMP in an ice bath using anionic catalyst maghnite-Na+at 0°C, the reaction took place in 24 h. The poly(1,4-bis(methacryloyl)piperazine) and NBMP structure was characterized and confirmed by infrared spectroscopy,1H and13C nuclear magnetic resonance spectroscopies. Thermal properties of the polymer were determined using thermogravimetric analysis. The yield of the reaction was 72% and 59% for the monomer and polymer synthesis respectively. The effect of the weight content of the catalyst on the reaction yield was studied. A polymerization mechanism has been suggested showing the role of maghnite as a catalyst during the reaction courses.
Biosynthetic potential assessment of four food pathogenic bacteria in hydrothermally silver nanoparticles fabrication
Authors: Rahimirad Amir , Javadi Afshin , Mirzaei Hamid , Anarjan Navideh , Jafarizadeh-Malmiri Hoda 
Published: June 2019

AbstractSilver nanoparticles (Ag NPs) were synthesized using four pathogenic bacterial extracts namely,Bacillus cereus,E. coli,Staphylococcus aureusandSalmonella entericasubsp.enterica. Synthesis process were hydrothermally accelerated using temperature, pressure and heating time of 121°C, 1.5 bar ad 15 min. Physico- chemical characteristics of the fabricated Ag NPs, including, particle size, polydispersity index (PDI), zeta potential, broad emission peak (λmax) and concentration were evaluated using UV-Vis spectrophotometer and dynamic light scattering (DLS) particle size analyzer. Furthermore, main existed functional groups in the provided bacterial extracts were recognized using Fourier transform infrared spectroscopy. The obtained results revealed that two main peaks were detected around 3453 and 1636.5 cm-1, for all bacterial extracts, were interrelated to the stretching vibrations of hydroxyl and amide groups which those had key roles in the reduction of ions and stabilizing of the formed Ag NPs. The results also indicated that, Ag NPs with much desirable characteristics, including minimum particle size (25.62 nm) and PDI (0.381), and maximum zeta potential (-29.5 mV) were synthesized usingS. e. subsp. entericaextract. λmax, absorbance and concentration values for the fabricated Ag NPs with this bacterial extract were 400 nm, 0.202% a.u. and 5.87 ppm.
The effect of Nb content on precipitates, microstructure and texture of grain oriented silicon steel
Authors: Wang Yong , Zhu Chengyi , Li Guangqiang , Liu Yu , Zhou Bowen 
Published: June 2019

Abstract
Niobium has the potential as an inhibitor forming element in grain oriented silicon steel. The grain oriented silicon steels with different Nb contents (0.028 wt% and 0.052 wt%) were prepared, and the effect of Nb content on the evolution of precipitates, microstructure and texture were investigated by the various analysis methods and thermodynamic calculations. The results show that the smaller size and larger number density of precipitates were obtained in the sample with low Nb steel after hot rolling. In the process of normalization, Nb(C, N) are more inclined to precipitate along the dislocations caused by hot rolling, contributing to finer and more dispersed precipitates in normalized bands. The finer and more dispersed precipitates in 0.028% Nb containing silicon steel perform a stronger pinning force during whole heat treatment processes, resulting in the smaller grain size and higher intensity of Goss texture in the specimen containing 0.028%Nb. After normalization, the intensities of Goss texture in both steels decrease.
The Teutonic crusade in Prussia: reconstruction of a medieval fortified settlement complex at Unisław
Authors: Wiewióra Marcin , Wasik Bogusz , Molewski Paweł , Badura Monika , Maciejewska Karolina , Makowiecki Daniel , Moszczyński Paweł , Misiewicz Krzysztof , Małkowski Wiesław , Bogacki Miron , Tyszkowski Sebastian 
Published: June 2019

Abstract
Improvement and Reaction Mechanisms of Hydrolytic Resistance of Magnesium Phosphate Cement Mixed with Glacial Acetic Acid
Authors: Jun Li , Yongsheng Ji 
Published: June 2019

Abstract
The aim of this quantitative study was to investigate the influence of different concentrations of glacial acetic acid on the setting time and hydrolytic resistance properties of magnesium phosphate cement (MPC). Sufficient addition of glacial acetic acid can prolong the setting time of an MPC paste. In our experiment, it was observed that the setting time increased and then decreased with increasing acid addition. Meanwhile, it was observed that the addition of acid could lead to improved hydrolytic resistance and that the critical time of water entry was approximately 7 days for standard curing. The improved hydrolytic resistance might be attributed to the chemical reaction between glacial acetic acid and phosphate inside the MPC, optimization of the pore structure of the MPC, and a reduction in the concentration of soluble phosphate.
Trends of Forming the Accounting and Analytical Management System in the Digital Economy
Authors: Hushko Serhii , Kulishov Volodymyr , Izmaylov Yaroslav , Subačienė Rasa 
Published: June 2019

Recent trends of overall digitalisation challenges to find new approaches and improvement of information formation systems in different spheres. The trends also make impact on the tendency to develop common stereotypes of methods, accounting procedures, reporting forms, etc. which may be called identification. The identification of accounting systems in its essence - is the solution to the problem of harmonization of accounting at the international level. However, it is impossible to achieve complete identification. Everything that is done in this direction at the national level by accounting systems (standardization of reporting, convergence of national rules with international ones, convergence of evaluation and control systems, etc.) indicates a progressive trend in the processes of identification and harmonization of accounting systems. The purpose of the research is to evaluate the trends of forming the accounting and analytical management system in the digital economy. The research methods are comparison, systematisation and summarisation of information. Thus the main components of the accounting organization have been defined, among them: the technique of organizing and conducting accounting; methodological support of accounting and internal control. There is a need for generalization of modern achievements for the construction of the AAMS, the development of the company's development strategy in the light of work peculiarities in the digital economy. Authors identified, that there is a modification of the existing and emergence of modern requirements and tasks for the organization of accounting due to a focus on new users, transformation of motives and requests of all interested in the accounting information participants of international economic relations. Moreover, further improvement of the AAMS organization will enable to increase efficiency and raise productivity of economic activity.
JEL code: M40
Neurodevelopmental and Academic Outcomes in Children With Orofacial Clefts: A Systematic Review
Authors: Gallagher Emily R. , Collett Brent R. 
Published: June 2019

CONTEXT:
Children with orofacial clefts (OFCs) are reported to have worse neurodevelopmental outcomes than unaffected peers, although study methodologies and findings are highly variable and trends in outcomes by age remain unexplored.

OBJECTIVE:
To examine the strength of the evidence and explore trends in neurodevelopment by age.

DATA SOURCES:
A systematic review was conducted of studies published from January 1, 1980, through November 3, 2017.

STUDY SELECTION:
Studies were independently screened by the authors and included in the review if they met predetermined eligibility criteria: (1) children and/or youth (&lt;25 years) with OFCs were studied, and (2) neurodevelopmental or academic outcomes were included.

DATA EXTRACTION:
The authors independently evaluated study quality and extracted outcome data.

RESULTS:
Thirty-one studies involving 10 143 patients with OFCs and 2 017 360 controls met eligibility criteria. Although the quality of the studies varied, patients with OFCs consistently performed worse than their peers on neurodevelopmental and academic measures. In infancy, differences were observed on multiple developmental outcomes (eg, cognition, motor skills, and language), and in later childhood and adolescence, differences were manifest on several indicators of academic achievement (eg, use of special education services, grades, and scores on standardized measures).

LIMITATIONS:
Heterogeneity in study designs, methods, and outcomes prevented statistical pooling and modeling for meta-analysis.

CONCLUSIONS:
Children with OFCs exhibit neurodevelopmental and academic deficits compared with their unaffected peers. Although the nature of these deficits changes with development, differences are observed from infancy through adolescence. Clinicians should monitor neurodevelopment in children with OFCs and support them appropriately.
SIKLUS PEMANFAATAN ENERGI SUMBER DAYA PESISIR OLEH AKTIVITAS MANUSIA BERBASIS LOOP AUTOKATALITIK DI KOTA MAKASSAR
Authors: Amri Syahrial Nur , Arifin Taslim 
Published: June 2019

Kota Makassar merupakan sebuah sistem sosial ekologi yang kompleks dengan berbagai proses metabolisme energi di dalamnya. Penelitian ini bertujuan menggambarkan pola pemanfaatan energi secara sederhana dalam kerangka konsep metabolisme sosial di Kota Makassar. Pendekatan yang digunakan adalah Autocatalytic Feedback Loop. Hasil penelitian menunjukkan bahwa penggunaan lahan dan peningkatan konsumsi energi mengalami peningkatan seiring meningkatnya jumlah penduduk dan limbah. Di sisi lain, ketersediaan sumber daya lokal atau produksi perikanan, pertanian, dan peternakan mengalami ketidakstabilan produksi. Untuk menstabilkan sistem, sebagai suatu sistem yang selalu berusaha menstabilkan diri, Kota Makassar menstabilkan proses sistem dengan melakukan input sumber daya dari luar.Title: The Useful Cycles of The Coastal Resources Energy By Human Activities Base on Autocatalytic Loop in Makasar CityMakassar City is a complex social ecological system with the various processes of energy metabolism in it. This study aims to describe simply the pattern of energy utilization within the framework of the concept of social metabolism in Makassar. The approach used is Autocatalytic Feedback Loop. The results showed that land use and energy consumption increased as population and waste increased.On the other hand, the availability of local resources or the production of fisheries, agriculture, and livestock have production instability. To stabilize the system, as a system that always try to stabilize itself, Makassar City stabilizes the system process by inputting external resources.
HISTORICAL FALSE AND TRUTH OF A.I. SOLZHENITSYN. NOTES ON THE FIELDS OF HIS BOOKS
Authors: KISLITSYN Sergey A. 
Published: June 2019

Introduction. The scientific article discusses the views of A.I. Solzhenitsyn on the history of Russia, set out in his writings and in the collection of ideas “Russia, the West, Ukraine” about new dangers threatening world civilization, about the relationship between Russia and Ukraine. His famous manuscript “The GULAG Archipelago”, which played an important role in exposing Stalinism, has a large number of inaccuracies, especially when counting the number of victims of repression. He surpassed the books of V. Shalamov, R. Medvedev and others with extraordinary emotionality and the ultimate specification of the sufferings of prisoners. Fixed idea of A.I. Solzhenitsyn’s books is to recognize the GULAG as the main, almost the only, core of the USSR. A.I. Solzhenitsyn’s collections of historical and artistic texts “Red Wheel” and “Two Hundreds Years Together (1795-1995)” are also not full-fledged sources of historical knowledge.Methods. The author of this scientific article reveals the incorrectness of criticism by the writer of both American and Soviet historical science.Results. In the article analyzes the A.I. Solzhenitsyn’s controversial criticism of the B.N. Yeltsin’s reforms in Russia and the nationalist regime in modern Ukraine. The opposition writer was the ideologue of the destruction of the centralized state-empire in socialist times and remained so in the post-Soviet period.Conclusions. The metamorphosis of an eternally opposition writer has been revealed: anti-Stalinist, anti-Communist, anti-Soviet-traditionalist, anti-state, anti-liberal, Russian nationalist.
Ecological and biological aspekt new locality of Drosera anglica Huds. near Końskich
Authors: Plackowski Ryszard 
Published: June 2019

<p>The work concerns the occurrence conditions <em>Drosera anglica.</em> (EN) within the site located 10 km from the village of au nord Końskie near the Czarna River. The species is very dispersed but in a few places the density was 5-10 of specimens per 1m<sup>2</sup>. This species grows within a patch which is poor in terms of its flora. No significant expansion of trees or shrubs has been noted. This is related to quite a high level of water. Such conditions are favourable to the development of another species under threat of extinction, <em>Rhynchospora alba. </em>Plant-based patches with participation of sundew are heterogeneous in terms of syntaxonomy. Presence of species has been observed, e.g. from the classes of <em>Phragmitetea </em>and <em>Scheuchzerio-Caricetea nigrae</em>. Soil analyses indicate that the soils under observation are not very acidic, with average content of CaO and ash content which is optimal for this species with the ratio of C:N which indicates a temporary mire. The content of heavy metals is in norm and poses no threat to the surroundings (Pb 64-65 ppm, Cd 2.7-2.9 ppm). Wide ranges in the analysed samples refer to chromium. They do not have an adverse effect on the development of <em>Drosera anglica</em>. A very crucial threat is the consequence of succession, competition and hydrological conditions.</p>
Intertextualité et réorganisation des frontières littéraires dans la production romanesque d’Alain Mabanckou
Authors: Schurmans Fabrice 
Published: June 2019

Cet article vise à dégager la façon dont les romans de Mabanckou prennent la littérature pour objet et mettent l’intertextualité en scène. Il s’agira également de montrer que l’affaiblissement des frontières littéraires entre genres et styles renvoie encore à un projet spécifique : celui d’installer l’œuvre en cours au sein d’un nouvel espace, ouvert au divers, à la pluralité, à l’hétérogène. À l’inverse des écrivains africains francophones de la première génération, l’entre-deux où s’installent les personnages de Mabanckou n’est plus perçu ici comme une tragédie mais comme une ouverture vers un autre rapport à soi et aux autres.
Réécritures dans <i>Un coup de dés jamais n’abolira le hasard</i> de Marcel Broodthaers
Authors: Stuart Elisabeth 
Published: June 2019

En 1969, Marcel Broodthaers organise à Anvers l’« Exposition littéraire autour de Mallarmé à la Deblioudebliou » en mettant ensemble toutes ses réécritures du poème Un coup de dés jamais n’abolira le hasard de Mallarmé et un exemplaire de la publication du poème de Mallarmé de 1914. Tout en rediscutant la notion de réécriture comme remédiation et en abordant la question de la transmission des « pathosformeln » de l’Antiquité dans le sillage d’Aby Warburg, je questionne, à la lumière d’Un coup de dés jamais n’abolira le hasard de Broodthaers, le potentiel signifiant des différents supports de l’écriture utilisés dans son œuvre.