bluuebunny/crossref_metadata_2025 huggingface dataset:
Silvicultural performance of eucaliptus and animal behavior in a silvopastoral system
Authors: Barbosa Giselle Feliciani , Marques Filho Wolff Camargo , Ensinas Simone Cândido , Flávio Daiane Cristina , Lima Isabela Machado de Oliveira , Silva Maiara Fernanda Garcia , Freitas Gabriela da Silva
Published: August 2019

Silvopastoral system, in which trees and forage species are grown in the same area together with animals, has emerged as a sustainable alternative of agricultural production systems. However, information on different silvicultural arrangements and combinations of forest, animal and grazing components in this system are still scarce. Thus, this study followed the silvicultural performance of the forest component (Eucalyptus urophylla x E. grandis, eucalyptus hybrid, clone I-144) under different population arrangements in a silvopastoral system through periodic dendrometric evaluations and determined the impact of animal component (Nellore females) on tree development and ingestive behavior of animals subjected to rotational grazing in Urochloa brizantha cv. Marandu. The study was conducted at Agropecuária Ouro Branco, located in Bandeirantes, MS, Brazil. Total height, diameter at breast height, and wood volume per hectare were evaluated in three- and five-row ranks. To indicate plant growth, the current and average annual increments were calculated. Animal behavior was evaluated based on the periodic observation of 15 animals randomly selected in the lot. The initial performance of forest component was satisfactory in both populations, but growth indicators indicated greater current and average annual increments in the five-row rank. The presence of forest component does not interfere with the ingestive behavior and wellbeing of animals in the silvopastoral system, as well as, the presence of animal component does not interfere in the plants silvicultural development.
Extraction of total phenolic content and antioxidant activity of Capsicum chinense and Capsicum spp in different solvents and extraction time
Authors: Ribeiro Michely da Silva , Melo Claudia Maria Tomás , Almeida Eduardo Santos , Queiroz Carla Regina Amorim dos Anjos
Published: August 2019

The purpose of this work was to evaluate the extraction and quantification of total phenolic compounds and the antioxidant activity of two peppers processed by four different methods (in natura, dried, preserved in vinegar and preserved in oil). The extraction efficiency of total phenolics using seven solvents (distilled water, ethanol, 50% ethanol, methanol, 50% methanol, ketone p.a and 50% ketone) were checked. Total phenolic analyzes were performed using the Folin-Ciocalteu and gallic acid method to obtain the standard curve with 650 nm absorbance reading. The antioxidant activity was determined using a spectrophotometric method using the reagent 2,2-diphenyl-1-picryl hydrazyl (DPPH). No significant differences were observed in the two extraction times 6 and 24 h. For samples preserved in vinegar, no significant differences were observed between the solvents used for the extraction. The Capsicum chinense pepper showed the highest amount of phenolic compounds in all treatments when compared to the chili pepper, except when conserved in oil. For the dry pepper, the lowest total phenolic extraction value was obtained with 99.5% ethanol (p.a.) and acetone p.a ACS 99.5% (p.a.), which differed from the peppers preserved in oil. The analysis of the antioxidant activity of Capsicum chinense and Capsicum spp did not present a significant difference (p>0.05) when compared to the dried or vinegar preserved samples. However, the sample of Capsicum chinense pepper in natura presented higher antioxidant activity than the samples conserved in oil. It can be considered from the experimental results that the peppers in this study, especially in fresh and dried form are good sources of natural antioxidants.
Quality selection and genetic diversity of Tunisian durum wheat varieties using SSR markers
Authors: Babay Elyes , Mnasri Sameh Rahmani , Mzid Rim , Naceur M'barek ben , Hanana Mohsen
Published: August 2019

Our study focuses on the molecular analysis of the genetic diversity within 15 Tunisian durum wheat varieties and the assessment of the efficiency of some available markers to select valuable genotypes for technological proprieties of semolina (i.e. parameters related to SDS-sedimentation, mixing time and breakdown resistance of mixograph, grain protein content and yellow colour). While several markers were validated, others were not informative within the genotypes used. A high level of polymorphic information content (PIC) was detected, with an average of 5.2 polymorph alleles per locus and 0.6 average. Old varieties have high protein content however; modern varieties display strong gluten strength. Our results thus open the opportunity to choose valuable parents on the base of pedigrees, technological properties and genetic distances; and lead us to select efficient markers for the Regional Indigenous Land Strategy (Rils) selection strategy.
Direito Fundamental dos Adotandos à Nacionalidade na Adoção Internacional
Authors: Cavallieri Leila Arruda , Del'Olmo Florisbal
Published: August 2019

O artigo apresenta uma visão da importância de se garantir o direito à aquisição e  a garantia de uma nacionalidade, no país de acolhida, para crianças e adolescentes nas adoções internacionais que se concretizam sob a égide da Convenção da Haia sobre Adoção Internacional. A primeira etapa da investigação se inicia pela pesquisa das normativas constitucionais e infraconstitucionais brasileiras que definem o instituto da nacionalidade. Em seguida, verifica-se até que ponto ocorreu uma constitucionalização do direito internacional no tocante a direitos fundamentais, em especial o de se tornar cidadão. Posteriormente, a pesquisa busca explicar como se dá a concessão de nacionalidade nos países de acolhida de crianças e adolescentes nas adoções entre Estados, com intuito de aferir se os ditames da Convenção da Haia sobre Adoção Internacional estão sendo respeitados. Dessa feita, a pesquisa visa demonstrar a importância de adequação de normas internas ao texto convencional com intuito de consolidar as reais necessidades dos adotandos para a plena fruição de direitos nos países dos adotantes.
Mathematical Modelling the Drying Kinetics of Beetroot Strips during Convective Drying at Different Temperatures
Authors: Manjunatha S. S. , Raju P. S.
Published: August 2019

The thin layer drying of beetroot strips was evaluated at drying temperatures from 60 °C to 90 °C using convective dryer at inlet air velocity of 1.0 m/s. The different drying models were tested to evaluate the drying characteristics of beetroot strips. The investigations showed that Page’s and modified Page’s equations were satisfactorily describing the drying behaviour of beetroot strips during convective drying with appreciable high correlation coefficient (0.9971<r<0.9990) with low error values. The effective moisture diffusivity was increased from 3.563 x 10-10 m2/s to 8.038 x 10-10 m2/s with increase in drying temperature. The temperature dependency of effective moisture diffusivity was described by Arrhenius equation and activation energy for moisture diffusivity was 30.08 KJ/mol. The drying kinetic coefficients were significantly (p<0.05) affected by drying air temperature. The exponents of models were decreased linearly with drying air temperature during drying of beetroot strips. The equilibrium moisture content was markedly affected by drying air temperature and it decreased linearly with drying air temperature. The results were very useful in standardisation and optimisation of drying process of beetroot strips in large scale commercial production.
Optimisation and Evaluation of Ricebean (Vigna Umbellata) Extrusion Process for Downstream Food Processability
Authors: Bepary Rejaul Hoque , Wadikar D. D. , Vasudish C. R. , Semwal A. D. , Sharma G. K.
Published: August 2019

Ricebean(Vigna umbellata), a native bean of North-Eastern part of India has not been explored fully for development of convenience foods although it is loaded with various vitamins, minerals, dietary fiber, phytochemicals and bioactive compounds. The effect of extrusion parameters namely moisture content, barrel temperature and screw speed on expansion ratio, extrudate density, and breaking strength was investigated by using response surface methodology. It was observed that moisture content of flour had significant (p<0.05) affect on expansion ratio, extrudate density, and breaking strength of extrudates. The optimal combination of process parameters which resulted in extrudates with maximum expansion ratio but minimum extrudate density and breaking strength were 15 per cent moisture content, 110°C barrel temperature and 350 rpm screw speed. The value of water absorption index, water solubility index, swelling power, oil absorption index, bulk density, true density and colour for optimally extruded ricebean flour (OEF) was found significantly different (p<0.05) whereas value of proximate parameters were insignificant (P>0.05) than the native flour. The OEF was used for different downstream processings such as papadability, friability, steamability, cakeability, gravyability and porridgability and compared with that of native flour for their process quality parameters. The cake prepared with OEF had significantly (p<0.05) less baking time (25 min) than the cake of native ricebean flour (35 min). However, consistency and over all acceptability (OAA) of porridge from OEF was found significantly (p<0.05) higher than porridge of native ricebean flour. Hierarchical cluster analysis on OAA showed that porridgability and cakeability were most influential downstream processes
Normal Body Mass Index and Heart Rate Variability
Authors: Jain Jitendra Kumar , Maheshwari Ranjan
Published: August 2019

The autonomic nervous system (ANS) works in synergy with the Endocrine system that affects the body-mass and height and in turn the body mass index (BMI). The ANS activities are often assessed with one index that is heart rate variability (HRV). Reduced HRV has been reported in underweight (low BMI) and overweight (high BMI) individuals, but there is scarce information available on the relationship between normal BMI and HRV. Further, as per WHO expert consultation report, the Asian population has higher percentage of body fat than their European counterparts, therefore Asian people may have greater risk factors for type 2 diabetes and cardiovascular disease even below the existing upper edge of normal BMI. Thus it was recommended by WHO to consider the intermediate cutoff points within the normal BMI range as 18.5 Kg/m2, 20 Kg/m2, 23 Kg/m2, and 25 Kg/m2 for the Asian population. Therefore, the present study was aimed to investigate ANS activity among intermediate cutoff points of normal BMI using HRV. Seventy young individuals participated in the non-invasive and benign study. Subjects were divided into three groups based on their BMI as per the recommendation of the WHO report; NB1 (18.5<BMI≤20), NB2 (20<BMI<23) and NB3 (23<BMI<25). For all the subjects, 10 min of electrocardiogram was recorded and short term HRV analysis was carried out. Student t test was carried out to find the significance of study parameters in BMI groups. The BMI was correlated with HRV measures using Spearman’s correlation method. Statistically significant negative correlation was found between BMI and various HRV parameters. The sympathovagal balance was comparable in NB1 and NB2 group whereas it shifted towards sympathetic dominance in NB3 group. Higher sympathetic activity for BMI greater than 23 in Indian youth may lead to predictability of risks associated with overweight and obesity
Synthesis and Characterisation of Ligand Free Cadmium Imprinted Polymer for Sensing of Cd(II) from Aqueous Solution
Authors: Baghel Anuradha , Bhuvaneswari Akula , Singh Virendra Vikram , Boopathi Mannan , Singh Beer
Published: August 2019

Cadmium(II)-imprinted polymer [Cd(II)-IIP] was synthesized without using the conventional complexing ligand to reduce unnecessary step for complexing Cd(II). During synthesis of Cd(II)-IIP, the complete removal of Cd(II) from the polymer was confirmed using EDAX and AAS. Synthesized polymers ([Cd(II)-IIP], non-imprinted polymer (NIP) and polymer with cadmium (CdP) were also characterized and compared. SEM analysis of Cd(II)-IIP indicated the changes in surface morphology after imprinting, the polymer looked like a flaky material in comparison with NIP and CdP. BET surface area of Cd(II)-IIP (68 m2/g) was found to be more than that of NIP (24.6 m2/g) and CdP (17 m2/g). Cd(II)-IIP formed a complex with Cd(II) in the solution through carbonyl oxygen of the acrylamide as confirmed by FTIR. TGA analysis showed less char yield for Cd(II)-IIP than NIP. Cd(II)-IIP was further explored for the fabrication of ion selective electrode (ISE), which on binding with Cd(II) gave higher potential than NIP-ISE. Interference study was also performed using Cd(II)-IIP as such and also with fabricated ISE with Cd(II)-IIP using different cations such as Pb(II), Zn(II), Mn(II), Hg(II), and found that imprinted polymer showed more selectivity towards Cd(II) in aqueous solutions.
Path Planning of Anti ship Missile based on Voronoi Diagram and Binary Tree Algorithm
Authors: Shi Yan , Zhang Lihua , Dong Shouquan
Published: August 2019

The path planning of anti-ship missile should be considered both cruising in safety and striking in quick, which is an intractable problem. In particular, it is difficult to consider the safety of each missile path in the path planning of multiple missiles. To solve this problem, the “AREA Algorithm” is presented to divide the relative relations of areas：relative security area of the threat areas and fast-attack area of target approaching. Specifically，it is a way to achieve area division through the relationship between the target and the center of the operational area. The Voronoi diagram topology network, Dijkstra algorithm and binary tree algorithm have been used in the above process as well. Finally, Simulations have verified the feasibility and obvious advantages of “AREA Algorithm” compared with the single algorithm, and the tactical meaning in path planning of multiple missiles.
Agon literacki w świetle rycerskiego modelu kultury
Authors: Skibska Anna Maria
Published: August 2019

This essay – actually a scientific article included in the frame composition – is devoted to the innovative interpretation of literary agon in terms of the knight ethos on the background of Harold Bloom’s “anxiety of influence”, additionally enriched with references to Aeschylus’ and Eurypide’s “duel” in the Frogs by Aristophanes. On theoretical and methodological ground, the main research path is associated with an additional interpretation of Harold Bloom’s idea of intervals.
Ruś – Ukraina, Białoruś w Pierwszej Rzeczypospolitej
Authors: Drozdowski Mariusz R.
Published: August 2019

The reviewed book is the eleventh in the series devoted to the “Culture of the First Polish Republic in dialogue with Europe. Hermeneutics of values”. This series is the aftermath of an interesting research project, whose aim is both to comprehensively present the cultural relations of the Polish-Lithuanian Commonwealth with Europe, as well as to recognize the ways and forms of mutual communication of literary, aesthetic, political and religious values. In addition, it aims to present in a broad comparative context the structure of Early Modern culture of the Polish-Lithuanian Commonwealth. Apart from the introduction, the book contains the dissertations of 11 authors originating from various scientific centers in Poland and abroad (Toruń, Białystok, Vilnius, Venice, Padua, Cracow, Poznań, Rzeszów) and representing different research specialties: philology, history, and history of art. The general and primary goal of the text it is to analyze various aspects of the Ruthenian culture of the Polish-Lithuanian Commonwealth, both in its dynamic connection with the Polish-Latin culture and the processes occurring in Eastern European Orthodoxy after the fall of the Byzantine Empire and in connection with the strengthening of the Moscow state. The key issues developed in the volume relate essentially to: values of the Ruthenian culture, some of which coincide or are identical to those recognized by Western-Polish citizens of the Commonwealth, while depend on the centuries old tradition of Eastern-Christian culture.The articles focuses on the values displayed in the Orthodox and Uniate spheres and around the polemics between them, punching with axiological arguments. The most frequently and basic problems that were raised are: determinants of identity, faith (religion), language (languages), social status, origin; the policy of rulers, the problem of ecclesiastical jurisdiction; tradition and change in culture – biblical studies, patristics, liturgy, theology; printing, translations, education; apologetics and polemics, preaching, iconography; a renewal program for the clergy that was to become the vanguard of the renewal of the entire Eastern Church; Bazylian Uniate ( Greek- Catholic) clergy: the idea of cultural integration, education, translation and publishing.
Nowe stronice (nie)znanej historii
Authors: Walczak-Mikołajczakowa Mariola
Published: August 2019

The article discusses the book by Diana Ivanova История на новобългарския книжовен език – a new textbook on the history of literary Bulgarian language. Starting from a discussion of terminology related to concepts the Old Bulgarian and New Bulgarian language, first presents the history of the scientific discipline as the history of the New Bulgarian literary language (NBKE), and then the textbooks used so far in the university didactics. It is necessary to indicate a new content of the discussed monograph, in which a significant novum is the different perception of the beginnings of NBKE and chapters on the activities of the literary society from Brasov and biblical translations into a language understandable to the reader in the 19th century.
Superlinear Schrödinger–Kirchhoff type problems involving the fractional p–Laplacian and critical exponent
Authors: Xiang Mingqi , Zhang Binlin , Rădulescu Vicenţiu D.
Published: August 2019

This paper concerns the existence and multiplicity of solutions for the Schrődinger–Kirchhoff type problems involving the fractional p–Laplacian and critical exponent. As a particular case, we study the following degenerate Kirchhoff-type nonlocal problem:

‖
u
‖

λ

(

θ
−
1

)

p

[

λ

(

−
Δ

)

p
s

u
+
V

(
x
)

|
u
|

p
−
2

u

]

=

|
u
|

p
s
⋆

−
2

u
+
f

(

x
,
u

)

 
i
n
 

ℝ
N

,

‖
u
‖

λ

=

(

λ

∫
ℝ

∫

2
N

|

u

(
x
)

−
u

(
y
)

|

p

|

x
−
y

|

N
+
p
s

d
x
d
y
+

∫

ℝ
N

V

(
x
)

|
u
|

p

d
x

)

1
/
p

$$\begin{align}& \left\| u \right\|_{\lambda }^{\left( \theta -1 \right)p}\left[ \lambda \left( -\Delta \right)_{p}^{s}u+V\left( x \right){{\left| u \right|}^{p-2}}u \right]={{\left| u \right|}^{p_{s}^{\star }-2}}u+f\left( x,u \right)\,in\,{{\mathbb{R}}^{N}}, \\ & {{\left\| u \right\|}_{\lambda }}={{\left( \lambda \int\limits_{\mathbb{R}}{\int\limits_{2N}{\frac{{{\left| u\left( x \right)-u\left( y \right) \right|}^{p}}}{{{\left| x-y \right|}^{N+ps}}}}dxdy+\int\limits_{{{\mathbb{R}}^{N}}}{V\left( x \right){{\left| u \right|}^{p}}dx}} \right)}^{{1}/{p}\;}} \\ \end{align}$$

where

(

−
Δ

)

p
s

$\left( -\Delta \right)_{p}^{s}$

is the fractional p–Laplacian with 0 < s < 1 < p < N/s,

p
s
⋆

=

N
p

/

(

N
−
p
s

)

$p_{s}^{\star }={Np}/{\left( N-ps \right)}\;$

is the critical fractional Sobolev exponent, λ > 0 is a real parameter,

1
<
θ
≤

p
s
⋆

/
p

,

$1<\theta \le {p_{s}^{\star }}/{p}\;,$

and f : ℝ
N
× ℝ → ℝ is a Carathéodory function satisfying superlinear growth conditions. For

θ
∈

(

1
,

p
s
⋆

/
p

)

,

$\theta \in \left( 1,{p_{s}^{\star }}/{p}\; \right),$

by using the concentration compactness principle in fractional Sobolev spaces, we show that if f(x, t) is odd with respect to t, for any m ∈ ℕ+ there exists a Λm
> 0 such that the above problem has m pairs of solutions for all λ ∈ (0, Λm
]. For

θ
=

p
s
⋆

/
p

,

$\theta ={p_{s}^{\star }}/{p}\;,$

by using Krasnoselskii’s genus theory, we get the existence of infinitely many solutions for the above problem for λ large enough. The main features, as well as the main difficulties, of this paper are the facts that the Kirchhoff function is zero at zero and the potential function satisfies the critical frequency inf
x

∈ℝ
V(x) = 0. In particular, we also consider that the Kirchhoff term satisfies the critical assumption and the nonlinear term satisfies critical and superlinear growth conditions. To the best of our knowledge, our results are new even in p–Laplacian case.
Modelling and impact of the turbulence effect on flash and cumulative 2D active imaging system
Authors: Meyer Olivier
Published: August 2019

In the topic of 2D active imaging systems, two technologies exist for image acquisition. The flash mode consists of a very short and intense laser shot, associated with a short time integration of the sensor (range of hundreds of nanoseconds). The second is the cumulative mode which consists of the integration of many low level energy laser pulses over a long-time integration of the sensor (range of tens of milliseconds). Cumulative mode systems have existed for a long time in the near infrared band. But for the past few years, new sensors are available in the short wave infrared (SWIR) band. Cumulative mode in the SWIR band can provide 2D active imaging systems with very low risk considering the eye safety aspects. Moreover, with a similar design, cumulative systems can overcome the range of flash systems, thanks to their ability to average turbulence effects over the sensor integration time. So, in this paper we have proposed a scintillation noise comparison for each mode. First, we exposed the two types of available models, a numerical model, used for image generation. Second one, an analytical model, used for a quick evaluation of the design of a 2D active imaging system. Both models were compared, especially in their area of validity. Then for a specific scenario, we estimated the gain in term of range performance between a cumulative and a flash system.
Isolate-specific resistance to the algicidal bacterium Kordia algicida in the diatom Chaetoceros genus
Authors: Meyer Nils , Pohnert Georg
Published: August 2019

Algicidal bacteria can lyse phytoplankton cells, thereby contributing to algal bloom dynamics in the oceans. The target specificity of these bacteria determines their ecological impact. While species specificity of algicidal bacteria is documented, little is known about intra-species variability of their activity against phytoplankton. We describe variability in the Chaetoceros genus (Bacillariophyceae) to resist the lytic activity of the algicidal Flavobacterium Kordia algicida. This variability is evident between different Chaetoceros species, but even intra-specific variability of resistance is observed within one phytoplankton sample. This proves an ecological role of the individuality of diatom cells within a bloom.
Phylogeny of new marine Dothideomycetes and Sordariomycetes from mangroves and deep-sea sediments
Authors: Jones E. B. Gareth , Devadatha Bandarupalli , Abdel-Wahab Mohamed A. , Dayarathne Monika C. , Zhang Sheng-Nan , Hyde Kevin D. , Liu Jian-Kui (Jack) , Bahkali Ali H. , Sarma Vemuri V. , Tibell Sanja , Tibell Leif , Wang Meng-Meng , Liu Fang , Cai Lei
Published: August 2019

This paper documents six new saprobic marine fungi and one new genus based on morphology and multi-gene phylogenies. Three Dothideomycetes, and members of the Pleosporales, are introduced: Pseudomassariosphaeria triseptata sp. nov. was recognized as a mangrove species in Amniculicolaceae, and Salsuginea phoenicis sp. nov. was discovered as a second member of Salsugineaceae. A new genus Raghukumaria with Raghukumaria keshaphalae sp. nov., recovered from mangroves, is phylogenetically sister to Halomassarina and nests in the Trematosphaeriaceae. Three new species are referred to the Sordariomycetes: Coniochaeta marina (Coniochaetales, Coniochaetaceae) on driftwood; Fusicolla bharatavarshae (Hypocreales, Nectriaceae) is introduced with asexual and sexual morphs, on decayed mangrove wood of Avicennia marina; and Fusarium sedimenticola (Hypocreales, Nectriaceae) is new to the Fusarium solani species complex (FSSC) from deep-sea sediment.
Diagnostic accuracy of fine needle aspiration cytology of thyroid nodules
Authors: Erkinuresin Taskin , Demirci Hakan
Published: August 2019

Background

Routine application of fine needle aspiration cytology (FNAC) has decreased unnecessary referral of thyroid nodules for surgical treatment and has also increased the cancer rates found in surgery materials. Success of thyroid FNAC depends on skilled aspiration, skilled cytological interpretation and rational analysis of cytological and clinical data. The aim of this study was to determine the diagnostic accuracy rates of thyroid FNAC results obtained in our institution.

Methods

The data from FNAC and thyroidectomy reports of patients presenting with goiter and who had been evaluated from 1st January 2014 to 1st March 2018 were used. There were 149 patients in total who had undergone thyroidectomy following FNAC. The Bethesda System for Reporting Thyroid Cytology was used in all cytological diagnoses.

Results

The sensitivity of thyroid FNAC for malignant cases was 57.89%, specificity was 88.10%, false-positive rate was 11.90%, false-negative rate was 42.11%, positive predictive value was 52.38%, negative predictive value was 90.24% and accuracy rate was 82.52%. “Focus number” variable was detected as the factor that affected the accurate prediction of FNAC and thyroidectomy results by the pathologist.

Conclusions

This study showed that there was a moderate conformity between thyroid FNAC and thyroidectomy cyto-histopathological diagnosis in malignant cases. As two or more nodules have a negative effect on the physician’s diagnosis of malignant nodules, we think that a more sensitive approach is needed in the determination of these cases. Sampling defects may affect this non-matching.
Bivariate Dynamic Weighted Survival Entropy of Order 𝛼
Authors: Nair Rohini S. , Abdul Sathar E. I.
Published: August 2019

Recently,
G. Rajesh, E. I. Abdul-Sathar and S. Nair Rohini
[G. Rajesh, E. I. Abdul-Sathar and S. Nair Rohini, On dynamic weighted survival entropy of order α,
Comm. Statist. Theory Methods 46 2017, 5, 2139–2150]
proposed a measure of uncertainty based on the survival function called weighted survival entropy of order α.
They have also introduced the dynamic form of a measure called dynamic weighted survival entropy of order α and studied various properties in the context of reliability modeling.
In this paper, we extend these measures into the bivariate setup and study its properties.
We also look into the problem of extending the same measure for conditionally specified models.
Empirical and non-parametric estimators are suggested for the proposed measure using the conditionally specified model, and the effect of the proposed estimators is illustrated using simulated and real data sets.
Exceptional sets for sums of almost equal prime cubes
Authors: Wang Mengdi
Published: August 2019

In this paper, we continue to investigate the exceptional sets for sums of five and six almost equal cubes of primes.
We would also like to establish that almost all natural numbers n, subjected to certain congruence conditions, can be written as

n
=

p
1
3

+
⋯
+

p
s
3

{n=p_{1}^{3}+\cdots+p_{s}^{3}}

(

s
=

5
,
6

{s=5,6}

) with

|

p
j

-

(

n
/
s

)

1
/
3

|

≤

n

θ
s

/
3

+
ε

{|p_{j}-(n/s)^{1/3}|\leq n^{\theta_{s}/3+\varepsilon}}

(

1
≤
j
≤
s

{1\leq j\leq s}

), where

θ
s

{\theta_{s}}

is as small as possible.
The main result of this paper is to improve

θ
6

=

5
/
6

+
ε

{\theta_{6}=5/6+\varepsilon}

, which is proven in [M. Wang, Exceptional sets for sums of five and six almost equal prime cubes, Acta Math. Hungar. 156 2018, 2, 424–434], to

θ
6

=

9
/
11

+
ε

{\theta_{6}=9/11+\varepsilon}

, as well as prove

θ
5

=

8
/
9

+
ε

{\theta_{5}=8/9+\varepsilon}

in another way.
On convergence of sequences of functions possessing closed graphs
Authors: Natkaniec Tomasz , Sieg Waldemar
Published: August 2019

In the first part of the paper we study the sets of boundedness and of convergence and divergence to infinity of
sequences of real closed-graph functions. Generalization on ideal convergence of such
sequences is discussed. Limits and ideal-limits of sequences of functions with closed graphs are considered in the last part of the article.
Existence of special rainbow triangles in weak geometries
Authors: Pambuccian Victor
Published: August 2019

We show that, in any ordered plane with a symmetric orthogonality relation which allows for a meaningful definition of acute and obtuse angles, in which all points are colored with three colors, such that each color is used at least once, there must exist both an acute triangle whose vertices have all three colors and an obtuse triangle with the same property.
We also show that, in both a geometry endowed with an orthogonality relation, in which there is a reflection in every line, in which all right angles are bisectable, which satisfies Bachmann’s Lotschnittaxiom (the perpendiculars raised on the sides of a right angle intersect), and in plane absolute geometry, in which all points are colored with three colors, such that each color is used at least once, there exists a right triangle with all vertices of different colors.
On orbits without the Baire property
Authors: Kharazishvili Alexander
Published: August 2019

The following question is considered: when an uncountable commutative group of homeomorphisms of a second category topological space contains a subgroup,
no orbit of which possesses the Baire property?
On combinatorial and set-theoretical aspects of some finite and infinite point sets
Authors: Tetunashvili Tengiz
Published: August 2019

In this paper, theorems are stated regarding geometrical realizations of finite families of sets, for a given countable family of sets the
existence of families of point sets combinatorially strictly ω-isomorphic to this given family of sets, independent families of triangles in the Euclidean plane, also, the existence and extensions of ρ-at-sets, ρ-rt-sets, ρ-ot-sets and ot-sets. These theorems are a continuation of the corresponding results of [6, 7, 8, 5, 3, 4].
Microstructure and luminescence of VO2 (B) nanoparticle synthesis by hydrothermal method
Authors: Pham Vuong-Hung , Quan Duong Hong , Manh Nguyen The , Minh Vu Thi Ngoc , Thang Cao Xuan , Tam Phuong Dinh , Thiet Duong Van , Van Hoang Nhu
Published: August 2019

This paper reports the way for the synthesis of nanoplate VO2 (B) particles with controlled morphology. Nanoplate VO2 (B) particle was synthesized by hydrothermal method. Microstructure of VO2 (B) particles were controlled by hydrothermal temperatures and use of Zn doping into VO2 (B) matrix. The microstructure of the particles was shifted from nanowires to nanoplate morphology by changing of hydrothermal temperatures. The doping of Zn into VO2 nanoparticles resulted in an effective achievement of VO2 (B) phase. In addition, luminescence of VO2 (B) nanoparticle was also controlled by the use Zn doping. These results suggest that the potential application of Zn doped VO2 (B) particles for potential application in optical and energy techniques.
Optimization of uranium removal from uranium plant wastewater by response surface methodology (RSM)
Authors: Luo Yongguang , Zhang Weifeng , Li Jing , Zhang Libo , Zou Jingtian , Hu Jinming , Yang Lifeng , Xi Yunhao , Liao Tianqi
Published: August 2019

Uranium plant wastewater was treated in laboratory scale experiments by employing zero valent iron powder. Batch experiments conducted by the response surface methodology (RSM) proved significant decrease in concentrations of uranium due to a decrease in an oxidation-reduction potential and an increase in pH relative to an application of zero valent iron powder. Results indicated that it is effective on the removal of uranium from uranium plant wastewater with the uranium concentration of 2772.23 μg/L due to the adding of zero valent iron powder. it was found that the scope of pH is widely from 3 to 5 from the experimental data obtained in this study. The predicted model obtained from response surface methodology is in accordance with experimental results.
Natural durability of subfossil oak: wood chemical composition changes through the ages
Authors: Baar Jan , Paschová Zuzana , Hofmann Tamás , Kolář Tomáš , Koch Gerald , Saake Bodo , Rademacher Peter
Published: August 2019

In recent years, subfossil oak has become increasingly popular, particularly in the manufacture of small wooden products. Due to the long period of its underground preservation, detailed knowledge of its properties is essential to properly use this material. In this study, subfossil oak samples dated to approximately 1000, 2000 and 3000 years BP and recent oak samples were chemically analyzed to determine the contents of extractives, the main wood components, and inorganic elements. The results were then evaluated in light of their natural durability. The mass loss of subfossil oak was 2–3 times lower than that of the recent sample, but the age of the subfossil oak itself had no influence on its durability. The long-term leaching process of water-soluble ellagitannins, together with their hydrolysis and bonding in ferric tannate complexes, were responsible for the decreased durability. The oldest subfossil oak had the lowest amount of phenolic compounds and the highest content of inorganic elements. Optical emission spectrometry proved an increase in inorganic elements 5–7 times higher than recent oak content, with the highest increase found for calcium and iron. Compared to recent oaks, subfossil oaks manifested decreased content of carbohydrates and correspondingly increased lignin content. Our results revealed that subfossil oak cannot be considered a suitable material for exterior use under aerobic conditions.
Menstrual disorders and medical counseling among schoolgirls in South Egypt: a cross-sectional study
Authors: Arafa Ahmed , Senosy Shaimaa
Published: August 2019

Background

Menstrual disorders are common gynecological problems among adolescents, however, medical counseling for these disorders is not well documented in developing countries.

Objectives

This study aimed to assess medical counseling for menstrual disorders among schoolgirls in Beni-Suef city in South Egypt.

Methods

Using a multi-stage random sampling, a total of 970 preparatory schoolgirls were included in this study. We used a self-administered questionnaire to detect the premenstrual and menstrual disorders as reported by the schoolgirls during the previous 6 months. Medical counseling for the menstrual disorders and other demographic characteristics were also surveyed.

Results

The mean age of the schoolgirls was 15.4 ± 0.8 years, age of menarche 13.2 ± 1.1 years and menstrual flow days 5.0 ± 1.3. During the past 6 months, 19.4% of the schoolgirls reported medical counseling for at least one menstrual symptom. Dysmenorrhea (89.2%), premenstrual fatigue (32.4%) and headache (31.1%) were the most often reported symptoms. After adjustment for personal and gynecological characters, abdominal bloating [odds ratio (OR) 3.66; 95% confidence interval (CI) 2.18–6.17], flow days >4 (OR 1.73; 95% CI 1.21–2.47), acne flare (OR 1.42; 95% CI 1.01–1.99), dysuria (OR 2.09; 95% CI 1.35–3.22) and facial hair (OR 6.89; 95% CI 3.47–13.69) were associated significantly with a higher likelihood of medical counseling.

Conclusion

Menstrual disorders are highly prevalent among preparatory schoolgirls in Beni-Suef, however, there is a noticeable lack of the medical counseling for these disorders. Future research should focus on the barriers to medical counseling for menstrual disorders among adolescents.
Hybrid Approach for Face Recognition from a Single Sample per Person by Combining VLC and GOM
Authors: Ghorbel Ahmed , Aydi Walid , Tajouri Imen , Masmoudi Nouri
Published: August 2019

This paper proposes a new face recognition system based on combining two feature extraction techniques: the Vander Lugt correlator (VLC) and Gabor ordinal measures (GOM). The proposed system relies on the execution speed of VLC and the robustness of GOM. In this system, we applied the Tan and Triggs and retina modeling enhancement techniques, which are well suited for VLC and GOM, respectively. We evaluated our system on the standard FERET probe data sets and on extended YaleB database. The obtained results exhibited better face recognition rates in a shorter execution time compared to the GOM technique.
Wavelet-based simulation of random processes from certain classes with given accuracy and reliability
Authors: Turchyn Ievgen
Published: August 2019

We consider stochastic processes

Y
⁢

(
t
)

{Y(t)}

which can be represented as

Y
⁢

(
t
)

=

(

X
⁢

(
t
)

)

s

{Y(t)=(X(t))^{s}}

,

s
∈
ℕ

{s\in\mathbb{N}}

, where

X
⁢

(
t
)

{X(t)}

is a stationary strictly sub-Gaussian process, and build a wavelet-based model that simulates

Y
⁢

(
t
)

{Y(t)}

with given accuracy and reliability in

L
p

⁢

(

[
0
,
T
]

)

{L_{p}([0,T])}

.
A model for simulation with given accuracy and reliability in

L
p

⁢

(

[
0
,
T
]

)

{L_{p}([0,T])}

is also built for processes

Z
⁢

(
t
)

{Z(t)}

which can be represented as

Z
⁢

(
t
)

=

X
1

⁢

(
t
)

⁢

X
2

⁢

(
t
)

{Z(t)=X_{1}(t)X_{2}(t)}

, where

X
1

⁢

(
t
)

{X_{1}(t)}

and

X
2

⁢

(
t
)

{X_{2}(t)}

are independent stationary strictly sub-Gaussian processes.
Coupling-enhanced dual ITO layer electro-absorption modulator in silicon photonics
Authors: Tahersima Mohammad H. , Ma Zhizhen , Gui Yaliang , Sun Shuai , Wang Hao , Amin Rubab , Dalir Hamed , Chen Ray , Miscuglio Mario , Sorger Volker J.
Published: August 2019

Electro-optic signal modulation provides a key functionality in modern technology and information networks. Photonic integration has not only enabled miniaturizing photonic components, but also provided performance improvements due to co-design addressing both electrical and optical device rules. The millimeter to centimeter footprint of many foundry-ready electro-optic modulators, however, limits density scaling of on-chip photonic systems. To address these limitations, here we experimentally demonstrate a coupling-enhanced electro-absorption modulator by heterogeneously integrating a novel dual-gated indium-tin-oxide phase-shifting tunable absorber placed at a silicon directional coupler region. This concept allows utilizing the normally parasitic Kramers-Kronig relations here in an synergistic way resulting in a strong modulation depth to insertion loss ratio of about 1. Our experimental modulator shows a 2 dB extinction ratio for a just 4 μm short device at 4 V bias. Since no optical resonances are deployed, this device shows spectrally broadband operation as demonstrated here across the entire C-band. In conclusion, we demonstrate a modulator utilizing strong index change from both real and imaginary parts of active material enabling compact and high-performing modulators using semiconductor near-foundry materials.
Habent sua fata professores. Joseph A. Schumpeter an Walter Eucken
Authors: Dathe Uwe , Hedtke Ulrich
Published: August 2019

In den Werken und in den veröffentlichten Briefen von Joseph A. Schumpeter (1883–1950) und Walter Eucken (1891–1950) finden wir nur wenige Bezüge auf das Werk des jeweils anderen. Es scheint, als ob Eucken und Schumpeter kaum Notiz voneinander nahmen. In seinem späten, postum herausgegebenen Werk „Grundsätze der Wirtschaftspolitik“ kritisiert Eucken Schumpeter scharf. Wir edieren und kommentieren in unserem Beitrag 16 Briefe von Schumpeter aus dem Nachlass von Walter Eucken. Diese Briefe zeigen eine enge wissenschaftliche und persönliche Beziehung zwischen den beiden Ökonomen zwischen 1926 und 1933 und belegen, dass Eucken Ende der 1920er Jahre wichtige Elemente von Schumpeters Entwicklungstheorie aufgriff.
Wettbewerbsrecht und Ökonomie im digitalen 21. Jahrhundert
Authors: Mohr Jochen
Published: August 2019

Das Verhältnis von Wettbewerbsrecht und Ökonomie gibt Anlass zu fortwährender Reflektion. Die Europäische Kommission will das Recht gegen Wettbewerbsbeschränkungen mit demmore economic approachstärker an ökonomischen Einzelfallanalysen ausrichten. Ein zentraler Ausdruck dieser Herangehensweise ist der sog.as efficient competitor test, wonach die Wettbewerbsregeln – vereinfacht gesprochen – nur auf solche Verhaltensweisen angewandt werden sollen, die für die Verbraucher ökonomisch nachweisbar schädlich sind. DieIntel-Entscheidung des Europäischen Gerichtshofs hat verdeutlicht, dass das Erzielen ökonomisch richtiger Einzelfallergebnisse über das Wettbewerbsrecht bereits in einer analogen Wirtschaft an Grenzen stoßen kann. Dies gilt umso mehr in der digitalen Ökonomie des 21. Jahrhunderts, schon weil die entsprechenden Geschäftsmodelle wettbewerbstheoretisch noch nicht voll durchdrungen sind. Auf der Grundlage einer juristisch-wertenden Interpretation des Wettbewerbsrechts sind unternehmerische Verhaltensweisen auch dann unzulässig, wenn sie die berechtigten Freiheitspositionen der Marktteilnehmer und die daraus erwachsenden Wettbewerbsprozesse unangemessen beeinträchtigen, ohne dass im konkreten Fall ein ökonomischer Verbraucherschaden nachgewiesen werden muss. Die praktische Bedeutung einer Ausrichtung der Wettbewerbsregeln an rechtlichen Kriterien zeigt sich am Beispiel desFacebook-Falls des Bundeskartellamts, in dem ein Missbrauch von Marktmacht aufgrund eines Verstoßes gegen grundlegende Prinzipien der Rechtsordnung in Rede steht, namentlich gegen das Allgemeine Persönlichkeitsrecht.
From text to ensemble: A multimodal study of television interpreting with cases from Chinese TV
Authors: Yang Yuhong
Published: August 2019

Television interpreting, although serving the largest population of users, is underexplored compared with conference interpreting or community interpreting by the academic community, not to mention any systematic, in-depth analysis foregrounding or tailored to its salient multimodal features. Drawing on Kress and van Leeuwen’s multimodal social-semiotic theory of communication as well as frameworks established in nonverbal communication and audiovisual translation, this paper moves away from traditional language-based discussions of interpreter-mediated television events and attempts to gain new insights into this essentially multimodal communicative practice through multimodal analysis of data. This paper purports to testify a tentative framework of modal relations of “complementarity”, “dependency”, and “incongruity” which are at work in interpreted television events, with authentic data, amounting to a total length of 5 hours, recorded from live news programmes on Chinese TV. The findings of modal complementarity and dependency clearly point to the essentially multimodal meaning making mechanism involved in the semiotic ensemble that is to be perceived by the audience in a gestalt fashion, which reveals the inadequacy of linguistic approaches to television interpreting.
Identifying and solving scientific problems in the medicine: key to become a competent scientist
Authors: Aydemir Duygu , Ulusu Nuriye Nuray
Published: August 2019

The scientific method can be described as a multistep and detailed process, in which finding the best question is the first and most crucial step. Thus, scientific problem should be examined thoroughly in different ways and perspectives. The amount and diversity of scientific data are enormously increasing and becoming more specific day by day, therefore traditional observational biology is not sufficient on an individual basis to understand and treat multifactorial diseases. Moreover, protocols, documentations, information, outcomes, precisions, and considerations of evidence should be improved to answer scientific questions correctly during the scientific research. Because of the diversity of the data and the methods, statisticians and methodologists should be involved and contribute to the all stages of research. Besides that, all scientific data should be certainly reproducible and repeatable. Scientific knowledge is in a state of flux and becomes more complex day by day. Thus, becoming a competent scientist needs, abilities and skills such as creativity, hardworking and self-discipline that all requires lifelong learning, searching, and widening scientific horizons consistently.
Verdade e Justiça entre Oposição e Complementariedade: apontamentos sobre as diferenças no tratamento da Operação Condor pela Justiça de Transição no Brasil e na Argentina
Authors: Pereira Vanuza Nunes
Published: August 2019

A partir de uma pesquisa documental abrangendo a burocracia diplomática do Brasil e da Argentina, associada a uma revisão bibliográfica sobre justiça transicional no Cone Sul, nosso objetivo é demonstrar a hipótese de complementaridade entre verdade e justiça no âmbito dos mecanismos de concretização da justiça de transição. Nosso recorte considera as atividades de agentes estatais dos regimes autoritários brasileiro e argentino no contexto da Operação Condor, bem como o seu posterior tratamento pelos Tribunais dos respectivos países, agora em ambiente democrático. Nossos resultados revelam a maior capacidade do modelo argentino no tratamento dialético do binômio verdade/justiça, em comparação com um modelo nacional ineficiente, centrado na dimensão de uma verdade opaca e ainda circunscritos por inúmeros obstáculos como a Lei de Anistia e o negacionismo.
Disruption of NMDAR Function Prevents Normal Experience-Dependent Homeostatic Synaptic Plasticity in Mouse Primary Visual Cortex
Authors: Rodriguez Gabriela , Mesik Lukas , Gao Ming , Parkins Samuel , Saha Rinki , Lee Hey-Kyoung
Published: August 2019

Homeostatic regulation of synaptic strength allows for maintenance of neural activity within a dynamic range for proper circuit function. There are largely two distinct modes of synaptic plasticity that allow for homeostatic adaptation of cortical circuits: synaptic scaling and sliding threshold (BCM theory). Previous findings suggest that the induction of synaptic scaling is not prevented by blocking NMDARs, whereas the sliding threshold model posits that the synaptic modification threshold of LTP and LTD readjusts with activity and thus the outcome of synaptic plasticity is NMDAR dependent. Although synaptic scaling and sliding threshold have been considered two distinct mechanisms, there are indications from recent studies that these two modes of homeostatic plasticity may interact or that they may operate under two distinct activity regimes. Here, we report using both sexes of mouse that acute genetic knock-out of the obligatory subunit of NMDAR or acute pharmacological block of NMDAR prevents experience-dependent homeostatic regulation of AMPAR-mediated miniature EPSCs in layer 2/3 of visual cortex. This was not due to gross changes in postsynaptic neuronal activity with inhibiting NMDAR function as determine by c-Fos expression and two-photon Ca2+imaging in awake mice. Our results suggest that experience-dependent homeostatic regulation of intact cortical circuits is mediated by NMDAR-dependent plasticity mechanisms, which supports a sliding threshold model of homeostatic adaptation.

SIGNIFICANCE STATEMENTProlonged changes in sensory experience lead to homeostatic adaptation of excitatory synaptic strength in sensory cortices. Both sliding threshold and synaptic scaling models can account for the observed homeostatic synaptic plasticity. Here we report that visual experience-dependent homeostatic plasticity of excitatory synapses observed in superficial layers of visual cortex is dependent on NMDAR function. In particular, both strengthening of synapses induced by visual deprivation and the subsequent weakening by reinstatement of visual experience were prevented in the absence of functional NMDARs. Our results suggest that sensory experience-dependent homeostatic adaptation depends on NMDARs, which supports the sliding threshold model of plasticity and input-specific homeostatic control observedin vivo.