bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of serum proteins on apatite growth for 45S5 Bioglass and common sol-gel derived glass in SBF
Authors: Lin Sen , Jones Julian R. 
Published: February 2018

Abstract
The inhibitive effects of serum proteins on apatite growth was compared between melt-derived 45S5 Bioglass® and sol-gel derived bioactive glass of the 70S30C (70 mol% SiO2, 30 mol% CaO). By using techniques of XRD, TEM and Raman spectroscopy, the transformation of amorphous calcium phosphate to crystalline apatite, and the resulting size and aspect ratio of the crystals, in simulated body fluid (SBF), was seen to decrease in the presence of serum. XRD showed more rapid HA formation on Bioglass particles, compared to that forming on 70S30C particles, however TEM showed similar size and frequency of the needle-like crystals. Phosphate reduction in SBF was similar for Bioglass and 70S30C. Calcium carbonate formation was more likely on the phosphate-free sol-gel glass than on Bioglass.
Novel DyP from the basidiomycete Pleurotus sapidus: substrate screening and kinetics
Authors: Avram Alexandru , Sengupta Arijit , Pfromm Peter H. , Zorn Holger , Lorenz Patrick , Schwarz Tatjana , Nguyen Khanh Quoc , Czermak Peter 
Published: February 2018

AbstractA novel Dye-decolorizing peroxidase from the basidiomycete Pleurotus sapidus was screened for dyedecolorizing peroxidase activity with 2,2‘-azino-bis(3- ethylbenzothiazoline-6-sulfonic acid), Remazol Brilliant Blue R and Guaiacol. Additionally, the catalytic efficiency on degrading β-carotene into volatile products, and the catalyst storage stability with three different additives were also studied. The apparent inhibition constant (KS) was 51.7 μM. Optimal reaction rates (Vmax) and affinity constants (Km) towards the reducing substrates were obtained using Michaelis-Menten kinetic theory. The trend in the calculated Km’s was found to be 7.0 mM > 0.524 mM > 0.051 mM for Guaiacol, 2,2‘-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) and Remazol Brilliant Blue R. The storage stability of the catalyst was evaluated with 7.0% w/v PEG400, 7.0% w/v PEG1450 and 0.1% w/v Tween®80 at 5°C over a period of 45 days. The study revealed the longest activity conservation with PEG1450, where rDyP had lost 30% of initial activity. The enzyme solution presented similar pH and temperature dependence to known fungal dye-decolorizing peroxidases with most prolific enzymatic activities registered at pH 4.0 and temperatures below 30°C. An interesting property of the catalyst was oxidation observed in the absence of hydrogen peroxide.
Performance of green corrosion inhibitors from biomass in acidic media
Authors: Marciales Andrea , Haile Tesfaalem , Ahvazi Behzad , Ngo Tri-Dung , Wolodko John 
Published: February 2018

AbstractThere has been a strong interest worldwide in developing suitable technologies that can derive chemicals and materials from renewable biomass in a number of applications, including corrosion inhibitors. In spite of the efficacy of conventional inhibitors in corrosion control, current corrosion inhibitors exhibit toxicity and/or are non-biodegradable. Therefore, industry efforts are leading to the development of non-toxic and environmentally friendly “green” corrosion inhibitors from renewable resources. Extensive studies of different bio-based inhibitors show that a vast number of phytochemicals can be used as efficient corrosion inhibitors. This paper provides a comprehensive review of the corrosion inhibition properties of plant-derived chemicals classified under the parameters provided by botanical chemistry.
Prissy’s Quittin’ Time: The Black Camp Aesthetics of Kara Walker
Authors: Stephens Brian 
Published: February 2018

Abstract
Through a close reading of Walker’s first silhouette instalment-the audaciously titled Gone, An Historical Romance of a Civil War as it Occurred Between the Dusky Thighs of One Young Negress and Her Heart (1994)-this article examines how Walker utilises black camp to undermine both white supremacist and restrictive black uplift discourse. To be sure, the article is not an attempt to conflate these two, for the former is powerfully worse than the latter. However, it is necessary to explore how both discourses reinforce essentialist articulations of blackness and also to examine how black camp is a provocative analytic for their simultaneous disruption. Camp is usually understood as a queer-derived cultural practice that inflates identity to expose the constructed nature of gender. However, this article shows that black articulations of camp inflate identity to demonstrate the fiction of race as well.
“If You Don’t Bring No Grits, Don’t Come”: Critiquing a Critique of Patrick Kelly, Golliwogs, And Camp as A Technique of Black Queer Expression
Authors: Barnes Sequoia 
Published: February 2018

Abstract
I have written this article in order to establish Patrick Kelly as a black forbearer of fashion. Kelly complicates our sense of fashion through his use of black memorabilia and camp to not only create something consumable but to comment on the black body as a consumable. Therefore, the role I play in acknowledging this black supernova, as Eric Darnell Pritchard calls him, is by critiquing Lewis and Fraley’s critique of Patrick Kelly and questioning why overtly expressing one’s queerness through camp has not been seen as a viable form of black expression in the mainstream narrative of black creativity. Lewis and Fraley’s complete dismissal of Kelly’s use of camp does not happen in a vacuum. Yet, I must remember that there is also the task of establishing a legacy of technique for Patrick Kelly. Who are his forbearers?
Identification of facilitators and barriers to residents’ use of a clinical reasoning tool
Authors: DiNardo Deborah , Tilstra Sarah , McNeil Melissa , Follansbee William , Zimmer Shanta , Farris Coreen , Barnato Amber E. 
Published: February 2018

Abstract

Background:
While there is some experimental evidence to support the use of cognitive forcing strategies to reduce diagnostic error in residents, the potential usability of such strategies in the clinical setting has not been explored. We sought to test the effect of a clinical reasoning tool on diagnostic accuracy and to obtain feedback on its usability and acceptability.

Methods:
We conducted a randomized behavioral experiment testing the effect of this tool on diagnostic accuracy on written cases among post-graduate 3 (PGY-3) residents at a single internal medical residency program in 2014. Residents completed written clinical cases in a proctored setting with and without prompts to use the tool. The tool encouraged reflection on concordant and discordant aspects of each case. We used random effects regression to assess the effect of the tool on diagnostic accuracy of the independent case sets, controlling for case complexity. We then conducted audiotaped structured focus group debriefing sessions and reviewed the tapes for facilitators and barriers to use of the tool.

Results:
Of 51 eligible PGY-3 residents, 34 (67%) participated in the study. The average diagnostic accuracy increased from 52% to 60% with the tool, a difference that just met the test for statistical significance in adjusted analyses (p=0.05). Residents reported that the tool was generally acceptable and understandable but did not recognize its utility for use with simple cases, suggesting the presence of overconfidence bias.

Conclusions:
A clinical reasoning tool improved residents’ diagnostic accuracy on written cases. Overconfidence bias is a potential barrier to its use in the clinical setting.
An improvement of the constant in Videnskiĭ’s inequality for Bernstein polynomials
Authors: Abel Ulrich , Siebert Hartmut 
Published: February 2018

Abstract
In this paper, we deal with improvements on the constant

M
n

⁢

(
γ
)

{M_{n}(\gamma)}

in the so-called Videnskiĭ inequality

|

(

B
n

⁢
f

)

⁢

(
x
)

-

f
⁢

(
x
)

-

x
⁢

(

1
-
x

)

2
⁢
n

⁢

f
′′

⁢

(
x
)

|

≤

M
n

⁢

(
γ
)

⁢

x
⁢

(

1
-
x

)

n

⁢
ω
⁢

(

f
′′

;

γ
n

)

\biggl{|}(B_{n}f)(x)-f(x)-\frac{x(1-x)}{2n}f^{\prime\prime}(x)\biggr{|}\leq M_%
{n}(\gamma)\frac{x(1-x)}{n}\omega\bigg{(}f^{\prime\prime};\sqrt{\frac{\gamma}{%
n}}\biggr{)}

for a fixed constant

γ
≥
1

{\gamma\geq 1}

and

x
∈

[
0
,
1
]

{x\in[0,1]}

, where

B
n

⁢
f

{B_{n}f}

is the Bernstein polynomial,

f
∈

C
2

⁢

[
0
,
1
]

{f\in C^{2}[0,1]}

and ω is the first order modulus of continuity. Let

M
⁢

(
γ
)

=

sup

n
∈
ℕ

⁡

M
n

⁢

(
γ
)

{M(\gamma)=\sup_{n\in\mathbb{N}}M_{n}(\gamma)}

.
We prove the Videnskiĭ inequality for arbitrary

γ
≥
1

{\gamma\geq 1}

. In
particular, we improve the constant

M
⁢

(
2
)

=
0.9

{M(2)=0.9}

(Gonska and Ra
şa [8], 2008) to

M
⁢

(
2
)

=
0.6875

{M(2)=0.6875}

. Finally,
we consider

M
n

⁢

(
1
)

{M_{n}(1)}

for small values of n.
A Balanced Operation of Static VAR Compensator for Voltage Stability Improvement and Harmonic Minimization
Authors: Lomi Abraham , Dhadbanjan Thukaram 
Published: February 2018

AbstractThe conduction angles variation in operating a static var compensator can be used to meet the balanced and varying cyclic load of reactive power demand. However, this operation creates harmonics current into the system. An optimum combination of balanced reactive power from SVC and reactive power from the generator based on telephone influence factor (TIF), the total harmonic current factor (IT), and the distribution factor D is proposed. This approach is simulated to a typical distribution network. However, this operation creates harmonics currents into the AC system. This strategy is implemented to a conventional distribution network for various loading conditions is presented.
Study of the Effects of Ethanol As an Additive with a Blend of Poultry Litter Biodiesel and Alumina Nanoparticles on a Diesel Engine
Authors: Ramesha D. K. , Rajmalwar Nishad , Varma T. Sreeharsha , Mrithyunajaya Swamy K. M. 
Published: February 2018

AbstractWith the increasing population and rise in industrialization, the demand for petroleum reserves is increasing almost daily. This is causing depletion of the non-renewable energy resources. This work aims to find an alternative fuel for diesel engines. The use of poultry litter oil biodiesel obtained from poultry industry waste, which is a non-edible source for biodiesel, is very encouraging as an alternative fuel for diesel engines. The aim of this study is to observe and maximize the performance of poultry litter oil biodiesel by adding alumina nanoparticles and ethanol. The biodiesel is prepared with acid and the base catalysed transesterification of poultry litter oil with methanol using concentrated sulphuric acid and potassium hydroxide as catalysts. The experimentation is carried out on a CI engine with three different blends - B20 biodiesel blend, B20 biodiesel blend with 30 mg/L alumina nanoparticles, and B20 biodiesel blend with 30 mg/L alumina nanoparticles and 15 ml/L ethanol. The performance, combustion and emission characteristics of all three blends are compared with neat diesel. The results of the experiment show that ethanol as an additive improves the combustion and performance characteristics. It increases the brake thermal efficiency and peak cylinder pressure. It also reduces CO and UBHC emissions and there is a marginal increase in NOxemissions as compared to neat diesel.
Inhomogeneous GaInNAs quantum wells: their properties and utilization for improving of p-i-n and p-n junction photodetectors
Authors: Pucicki D. 
Published: February 2018

Abstract
A theoretical study of electronic structures and optical properties of GaInNAs/GaAs quantum wells has been performed. The inhomogeneous distributions of indium and nitrogen atoms along the growth direction were discussed as the main factors having significant impact on the QWs absorption efficiency. The study was performed by applying the band anticrossing model combined with the envelope function formalism and based on the material parameters which can be found in the literature. Indeed, the electronic band structure of 15 nm thick uniform Ga0.7In0.3N0.02As0.98/GaAs QW was computed together with electronic structures of several types of inhomogeneous QWs, with the same total content of In and N atoms. It was found that presented inhomogeneities lead to significant quantum wells potential modifications and thus to spatial separation of the electrons and holes wave functions. On the other hand, these changes have a significant impact on the absorption coefficient behavior. This influence has been studied on the basis of simulated photoreflectance spectra, which probe the absorption transitions between QW energy subbands. The electronic structure of inhomogeneous QWs under the influence of electric field has also been studied. Two different senses of electric field vector (of p-i-n and n-i-p junctions) have been considered and thus, the improvement of such types of QWs-photodetectors based on inhomogeneous GaInNAs QWs has been proposed.
Crystal structure of ethyl 1-(4-bromobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C19H17BrN2O2
Authors: Wang Zhen-Zhen , You Jin-Zong , Zhang Yi-Ping , Tong Sheng-Yue , Yu Ke-Ji , Hu Qiong , Guo Yan-Qi , Liu Dan , Qi De-Qiang 
Published: February 2018

Abstract
C19H17BrN2O2, triclinic, P1̅ (no. 2), a = 8.3979(11) Å, b = 10.4083(14) Å, c = 11.1696(15) Å, α = 69.270(2)°, β = 89.401(2)°, γ = 73.709(2)°, V = 872.1(2) Å3, Z = 2, R
gt(F) = 0.0422, wR
ref(F
2) = 0.1138, T = 296.15 K.
Genetic parameters estimation in quantitative traits of a cross of triticale (x Triticosecale W.)
Authors: Ferrari Enzo David , Ferreira Víctor Aníbal , Grassi Ezequiel Martín , Picca Aurora María Teresita , Paccapelo Héctor Antonio 
Published: February 2018

Abstract
Triticale (x Triticosecale Wittmack) is a cereal used in Argentina as a winter seasonal pasture or feeding grain. Efforts made on breeding have led to varieties with potential grain yield similar or greater than with wheat. The aim of this study was to determine the gene effects, heritability, genetic gain, heterosis and inbreeding depression in various quantitative traits of a cross from contrasting lines of triticale using generation means analysis. The thousand kernel weight was adjusted to a model of additive-dominance, while the rest of the traits exhibited significant epistatic effects: additive x additive (i) for hectoliter weight, additive x dominance (j) for number grains per spike and grain yield per plant. Other traits showed a more complex as inheritance additive x additive (i) and additive x dominance (j) interactions effects for spike length or additive x dominance (j) and dominance x dominance (l) interactions effects for number of spikes per plant and number of spikelets per spike. High values of heritability and genetic gain were also detected for grain yield, spikelets per spike, spike per plant and hectoliter weight. All traits except spike per plant had positive relative mid-parent heterosis, but none resulted in positive heterobeltiosis, therefore this cross is not recommended for obtaining hybrids varieties. Selection in early generations by thousand kernel weight and hectoliter weight would be efficient, while the selection in advanced generations where segregation is minimal would be recommended for the remaining traits.
Reflected backward stochastic differential equations with time-delayed generators
Authors: Tuo Navegué , Coulibaly Harouna , Aman Auguste 
Published: February 2018

AbstractThis paper is devoted to establish an existence and uniqueness result of one-dimensional reflected backward stochastic differential equations with time-delayed generators (RBSDEs with time-delayed generators, in short). Our proof is based on approximation via a penalization method.
Values and Attitudes of Nordic Language Teachers Towards Second Language Education
Authors: von Post Christina , Wikström Patrik , Räihä Helge , Liubinienė Vilmantė 
Published: February 2018

Summary
Issues in minority education in relation to citizenship have received more attention lately, because of new requirements for language testing in several countries (Bevelander, Fernandez & Hellström, 2011, p. 101). The acquisition of citizenship is more decisive for immigrant participation in society than the duration of stay in the country (Bevelander, Fernandez & Hellström, 2011). The second language is crucial for active citizenship and integration in this perspective. Most countries in the EU (except Ireland and Sweden) have language requirements for citizenship and the use of language testing becomes increasingly common among the countries that receive migrants. The rapid development highlights the need for new international studies on the relationship between citizenship and conditions for second language learning. The goal of the recent study is to compare premises, perspectives and scales of values of Danish, Norwegian and Swedish language educators, related to the requirements for immigrant citizenship. Previous studies (Björklund & Liubiniené, 2004) indicate that there are major differences in value systems even between the neighbouring countries. To reach the objective of the present study, interviews were conducted with language educators in Denmark, Norway and Sweden. The results have revealed two opposing patterns. The values of Swedish informants show a wide-ranging variation, while the Danish and Norwegian data on values are consistently similar. The results raise further questions about the effects caused by differences in values among language educators when comparing the countries and call for a further verification of the data in a more extended study, including Lithuania and other Baltic states.
Apprentissage du Français de la Douane dans le Cadre d’un Dispositif Hybride
Authors: Stasilo Miroslav 
Published: February 2018

Sommaire
Les enseignants des langues étrangères utilisaient très longtemps des méthodes traditionnelles comme celle de grammaire-traduction. Le travail des professeurs et des andragogues est plus complexe aujourd’hui qu’auparavant. Les trois dernières décennies ont vu de nombreux changements : évolution technologique, pluridisciplinarité des sciences, globalisation. L’enseignement actuel des langues étrangères s’appuie sur des sciences aussi diverses que la linguistique, la psychologie, l’informatique, les sciences de communication en se basant sur le Cadre européen commun de référence pour les langues3 dont le but est l’identification et la définition des facettes théoriques de l’apprentissage d’une langue. Cet article analyse l’enseignement du français aux douaniers lituaniens en mettant l’accent sur des approches et des techniques actives, en particulier sur l’approche hybride. Il analyse les programmes proposés par le Centre de la formation des douaniers de Vilnius en se concentrant sur une étude plus détaillée du programme de l’apprentissage hybride en français pour lequel le français de spécialité est une priorité. Cette approche appliquée à l’enseignement des langues étrangères, se révèle séduisante pour les adultes car elle facilite l’intégration à la vie professionnelle. Elle participe également à la réalisation de la politique de multilinguisme grâce à la coopération entre les enseignants des langues étrangères et les apprenants. Plus que d’autres, elle favorise également les synergies interdisciplinaires grâce à l’utilisation des nouvelles technologies et des documents authentiques dans des domaines très variés : de la vérification douanière des véhicules aux questions d’éthique des douanes. Cet article présente enfin 5 composantes de l’acquisition lexicale qui accompagnent la formation professionnelle des douaniers en français : linguistique, discursive, référentielle, socioculturelle et stratégique.
The book dedicated to the populations of rare plant species – Zlobin Yu. A., Sklyar V. G., Klimenko A. A. Populations of rare species of plants, theoretical principles and methods of the study. – Sumy : University Book, 2013. – 440 p.
Authors: Travleyev A. P. , Bilova N. A. 
Published: February 2018

The presence of numerous publications on populations is explained by the exceptional value of this branch of knowledge for understanding of the structural and functional organization of wildlife, natural resource exploitation, management and conservation of them for future generations. A short list of scientific directions in the study of the role and place of a population shows that in the scientific literature there are no studies of rare plant species populations, development of theoretical principles and methodology of their study. The experienced team of the Botany Department of Sumy National Agrarian University has started this work. Not regard to the objective of comparison and disclosure of several publications on this topic, you must immediately emphasize its originality, depth of knowledge of the problem, innovation, and the importance and need for conservation of biological diversity of vegetation, which is often in a state of crisis and requires urgent measures to save it. The book was published by the editorship of the well-known biogeocenologist and ecologist, Doctor of Biological Sciences, Professor, Honored Scientist of Ukraine Julian A. Zlobin together with well-known scientists in the filed of ecology and biogeocenology of Yu. A. Zlobin scientific school Victoria G. Sklar and Anna A. Klimenko. Structurally, the monograph consists of thirteen chapters, conclusion, bibliography and applications. A special place is occupied by the section "Methodological blocks", which is a kind of satellite for each section and which equip the reader with modern methodological approaches to complex problems solution of the population structure of the plant world. Here the authors examine the current level of rare species research organization, complexity and pivotal scientific idea, which is an organizing and centripetal force of varied complex research. There are four scenarios, which aim the saving, restoration, protection and rational use of the planet's vegetation. The book summarizes the collective work for one of the most important problems of modern biological science - conservation of rare plant species. Helpful tips for the organization of similar research in scientific institutions, biogeocenological stations by well-organized scientifically based plan at the level of the modern achievements of environmental science are given. In general, we believe that the reviewed scientific work of Yu. A. Zlobin, V. G. Sklar, A. A. Klimenko "Populations of rare species of plants, theoretical principles and methods of the study" is a major contribution to the scientific literature on ecological populations of rare species, their functions, complex relationship in vegetation cover. It will undoubtedly find a positive response in the wide circles of geobotanists, ecologists, biogeocenologists in our country and abroad.