bluuebunny/crossref_metadata_2025 huggingface dataset:
Marker Expression of Interstitial Cells in Human Skeletal Muscle: An Immunohistochemical Study
Authors: Hejbøl Eva K. , Hajjaj Mohammad A. , Nielsen Ole , Schrøder Henrik D.
Published: August 2019

There is a growing recognition that myogenic stem cells are influenced by their microenvironment during regeneration. Several interstitial cell types have been described as supportive for myoblasts. In this role, both the pericyte as a possible progenitor for mesenchymal stem cells, and interstitial cells in the endomysium have been discussed. We have applied immunohistochemistry on normal and pathological human skeletal muscle using markers for pericytes, or progenitor cells and found a cell type co-expressing CD10, CD34, CD271, and platelet-derived growth factor receptor α omnipresent in the endomysium. The marker profile of these cells changed dynamically in response to muscle damage and atrophy, and they proliferated in response to damage. The cytology and expression profile of the CD10+ cells indicated a capacity to participate in myogenesis. Both morphology and indicated function of these cells matched properties of several previously described interstitial cell types. Our study suggests a limited number of cell types that could embrace many of these described cell types. Our study indicate that the CD10+, CD34+, CD271+, and platelet-derived growth factor receptor α+ cells could have a supportive role in human muscle regeneration, and thus the mechanisms by which they exert their influence could be implemented in stem cell therapy.
Effect of Diode Laser Irradiation of Bonding Agents Before Curing Versus Standard Bonding Protocol on the Shear Bond Strength Between Resin Cement and Dentin
Authors: El-Hakim Nada Maged , Mokhtar Ashraf , Hamza Tamer
Published: August 2019

Objective: This study aimed to evaluate the effect of diode laser irradiation (970 nm) of a one-step self-etch adhesive (Clearfil S3Bond/CS3B) and of the bonding agent of a two-step self-etch adhesive (Clearfil Liner Bond F/CLBF) placed on dentin before polymerization on the shear bond strength.Material and methods: Forty sound premolars were sectioned buccally to obtain flat dentin surfaces. The specimens were divided into 4 groups (n=10): Group (OS) – CS3B + polymerization. Group (OS-L) – CS3B + laser + polymerization. Group (TS) – CLBF (bonding agent only) + polymerization. Group (TS-L) – CLBF (bonding agent only) + laser + polymerization. The diode laser was irradiated through an 8 mm bleaching tip for 10 seconds, (0.4 W, 10 Hz, 4 J). All samples were cemented to composite blocks submitted to 4000 thermal cycles. The samples were tested for shear bond strength in a universal testing machine. Data obtained was analyzed using Two-way (ANOVA) (P ? 0.05) and the Bonferroni post-hoc test. Representative samples from each group were analyzed using scanning electron microscopy (SEM). Results: GroupTS-L– (7.43 MPa) displayed statistically significant higher shear bond strength in comparison to that of group TS – (5.13 MPa). No statistically significant difference was found between group OS-L – (6.49 MPa) and group OS – (7.28 MPa). Group TS-L exhibited the highest resin penetration beyond the hybrid layer under SEM. Conclusions: Diode laser irradiation of a bonding agent placed on dentin without prior priming increased the bond strength to dentin and is promising as a new dentin adhesion protocol.
Physical and chemical properties of soils in different physiographic environments in the southern Amazonas region
Authors: Barros Nascimento Willian , Costa Campos Milton César , Campos Mantovanelli Bruno , Santos Luís Antônio Coutrim dos , Cunha José Mauricio , Hister Lourenço Igor , Oliveira Flávio Pereira de
Published: August 2019

The Amazon region has a great diversity of landscapes such as forests galleries, natural fields (“Cerrados Amazônicos”), dense forest, these environments made possible the formation of a broad class of soils over time. The aim of this study was to evaluate the physical and chemical properties of soils in different physiographic environments in southern Amazonas, Brazil. Three areas of representative physiographies were selected, all of them in natural conditions: natural field / forest and floodplain / dry land transitions, and corrugated relief areas. Soil samples were collected in layers of 0.0 to 0.20 and 0.80-1.0 m. From the samples collected the following physical analyzes were performed: particle size, bulk density, particle density, total porosity and saturated hydraulic conductivity; and chemical: exchangeable calcium, magnesium, aluminum and potassium available, phosphorus, potential acidity, pH and organic carbon. Based on the results of chemical analysis were calculated the sum of bases and base saturation. The results were submitted to multivariate statistics analysis, at the discretion of the principal component analysis (PCA). From the results it is clear that different physiographic environments studied influence the formation of different soil classes, featuring the diversity of Amazonian soils. The PCA allowed the distinction and formation of different similarity groups, thus enabling to relate the physical and chemical properties with the physiographic formation in which they are inserted.
Preservation and maceration of amazon açai leaflet tissue to obtain genomic DNA
Authors: Azêvedo Hellen Sandra Freires da Silva , Rufino Polinar Bandeira , Azevedo José Marlo Araújo de , Silva Luciélio Manoel da , Wadt Lúcia Helena de Oliveira , Campos Tatiana de
Published: August 2019

The objective of this study was to test the efficiency of preservation and maceration methods for Euterpe precatoria leaflet tissue to obtain genomic DNA for molecular studies. The leaflets of E. precatoria were collected in an experimental field at Embrapa Acre, Brazil. The study was conducted in a completely randomized design with 10 replicates, in a 12 × 2 factorial structure, with 12 storage treatments (fresh; lyophiliser 3 days; refrigerator 3, 5, and 7 days; silica gel 7, 10, 20, and 30 days; and transport buffer 3, 5, and 7 days) and two leaf tissue maceration methods (liquid nitrogen and the TissueLyser®). Statistically significant differences in the obtained DNA concentration were found between the maceration and storage treatments. The TissueLyser® macerator produced higher DNA concentrations when compared to liquid nitrogen. For the storage treatments, five groups were formed based on DNA concentration when macerated with the TissueLyser® and two groups when macerated with liquid nitrogen. The DNA concentrations ranged from 285.00 ng/µL (7 days in transport buffer) to 702.00 ng/µL (30 days in silica gel) when the leaflets were macerated with liquid nitrogen, and from 572.73 ng/µL (30 days in silica gel) to 2,850.00 ng/µL (3 days in lyophiliser) using the TissueLyser® macerator. The DNA purity (A260/A280 nm) varied from 1.30 to 1.70 when the leaflets were macerated with liquid nitrogen and from 1.30 to 1.90 with the TissueLyser® macerator. Despite the variations in leaf tissue preservation and DNA concentration, all treatments were effective for DNA isolation and it was possible to amplify genomic regions of microsatellite markers by PCR. It was concluded that leaflets of E. precatoria stored in a lyophiliser and processed with an automatic macerator resulted in satisfactory DNA for molecular studies.
Dignidade Humana
Authors: Markman Debora
Published: August 2019

Trata-se de um book review da obra “Dignidade Humana: visão do Tribunal Constitucional Federal Alemão, do STF e do Tribunal Europeu”, escrito por João Costa Neto. Trata-se de um estudo exaustivo acerca do próprio conceito de dignidade humana e de seu tratamento nos tribunais que constam do título.
E se o Ativismo chegar às Cortes Supranacionais?
Authors: De Almeida Rosa Marina , De Menezes Beber Augusto Carlos
Published: August 2019

O presente artigo tem como objetivo estudar as possibilidades de uma teoria da decisão judicial no âmbito das cortes internacionais. Para tanto, o trabalho questiona em que medida seria possível aplicar a Crítica Hermenêutica do Direito às decisões proferidas pelos tribunais tomando como base para exame o recente julgamento da Corte Interamericana no caso Lagos del Campo vs. Perú.  A partir da teoria de Lenio Streck, observou-se que a jurisdição internacional tem se aproximado de um ativismo judicial, o que se evidenciou a partir do caso estudado, mostrando-se, assim, relevante a instituição de um paradigma que permita o constrangimento epistemológico das decisões das cortes internacionais. Com isso, concluiu-se que, a partir da Crítica Hermenêutica do Direito, mesmo em termos de Direito Internacional Público, não é qualquer decisão que pode ser tomada, dado que a definição da norma jurídica não está disposta ao alvedrio do julgador.
Reflexos Jurídicos do Fluxo Migratório Haitiano
Authors: Paluma Thiago , Guimarães Silva Bianca
Published: August 2019

O paradigma central da política migratória brasileira passou por uma ressignificação no período de 1980 a 2017 impulsionado, principalmente, pela mudança do perfil do imigrante que busca o Brasil como país de destino. Antes da chegada dos imigrantes haitianos, após o terremoto que acometeu o Haiti em 2010, a legislação possuía um caráter conservador e excludente. Contudo, a partir das demandas por regularização e direitos, a legislação assumiu um caráter mais acolhedor, sobretudo, com a institucionalização do visto humanitário. Deste modo, este artigo examina se a legislação migratória foi atualizada em virtude das demandas originadas com o fluxo migratório haitiano e quais os seus reflexos. O presente texto tem como objetivo discutir esse cenário através da análise histórica da política nacional migratória, bem como mediante o debate acerca da terminologia sobre os deslocados ambientais. Por fim, observar-se-á que a lacuna normativa, que impulsionou a atuação administrativa (com o visto humanitário), culminou, posteriormente, na criação da lei 13.445/17. Portanto, a partir do estudo bibliográfico e da análise estatísticas buscar-se-á demonstrar os impactos e desafios desse fenômeno.
Outer Continental Shelf Delimitation in the Western Caribbean Sea (Nicaragua v. Colombia II)
Authors: Vega-Barbosa Giovanny
Published: August 2019

The controversy between Nicaragua and Colombia before the ICJ now concerns maritime delimitation beyond 200 nm. One of the main legal issues in this case is whether international law allows for delimitation to take place where alternative bases of continental shelf entitlement, namely, natural prolongation and distance, are opposed. As alleged by Nicaragua, its natural prolongation extends beyond 200 nm and overlaps with Colombia’s distance-based continental shelf entitlement. Nicaragua endorses the principle of equal division and accordingly, advocates for the viability of maritime delimitation. In Colombia’s view, the distance criterion has priority and trumps natural prolongation. In this work, the author analyses the legal discourse already voiced on the occasion of the dispute in the East China Sea, in order to identify instances of parallelism and symbiotic contribution with the question of the delimitation of the continental shelf beyond 200 nm in the Western Caribbean Sea.
Nota da Editora
Authors: Cardoso Squeff Tatiana de A. F. R.
Published: August 2019

Apresenta a edição n. 1 do vol. 47 da Revista da Faculdade de Direito da Universidade Federal de Uberlândia, ressaltando que os textos dessa edição buscam oferecer uma maior racionalização da realidade interna e internacional em prol da abertura de caminhos para opções e mudanças do mundo atual, voltadas à plena garantia dos direitos fudamentais, em detrimento de uma manipulação da ordem social e de um consequente cenário de inefetividade dos direitos básicos do homem, seguindo a mesma linha sociológica que Zygmunt Bauman.
Relationship between Altmetrics and Citations A Study on the Highly Cited Research Papers
Authors: Heydari Shabnam , Shekofteh Maryam , Kazerani Maryam
Published: August 2019

The present study aims to assess highly cited articles using altmetrics and citations and identify the relationship between them. The statistical population consists of all the highly cited articles on surgery indexed on the Web of Science. The number of article citations was measured using the Web of Science and the altmetric score of the articles using the Altmetric Bookmarklet. The analysis of the data was carried out using descriptive statistics and Spearman’s correlation coefficient. Of the 1077 highly cited surgery articles, 62.74 per cent had an altmetric score. The highest number of received citations was 1787, and the highest altmetric score was 2019. A positive and significant correlation was observed between the number of citations and the policy-making documents, Wikipedia citations and CiteULike (P<0.001). A positive but non-significant correlation was also observed between the number of citations and the number of Mendeley readers (r=0.02, P>0.05). A poor, negative and significant correlations were observed between the number of citations and the overall altmetric score of the highly cited surgery articles (r=-0.235, P<0.001). The findings may be due to the different pattern of using social media by the surgery researchers compared to the researchers of other fields. Altmetrics can only be used to complement citations and not replace them.
Determinants of Electronic Book Adoption in Nigeria
Authors: Foluke Okocha
Published: August 2019

The study examined the adoption of electronic books (e-books) among undergraduate students in Kwara State, Nigeria using the unified theory of technology acceptance and use model (UTAUT), with a view to understanding the factors that lead to its adoption. The population consisted of 300 undergraduate students from federal, state and private universities in Kwara State, Nigeria. Results showed that usage of electronic books in scholarly databases, procured by the library, was relatively low, with more than 50 per cent of respondents claiming to have used e-books only once. Students in federal and state universities showed preference for e-books while private university students showed preference for paper books. In examining the intention to adopt e-books, using the UTAUT model, results showed that performance expectancy, effort expectancy, social influence and facilitating conditions were major determinants of e-book adoption, while gender played a moderating role. Performance expectancy and effort expectance significantly influenced male students, while effort expectancy, social influence, facilitating conditions influenced female students significantly. It is paramount for university administrators to encourage the adoption of electronic books by promoting a lecturer-student model and improving the user interface to encourage the use of these resources.
Usability of Central Library Websites of Iranian Universities of Medical Sciences an Evaluation
Authors: Habibi Shafi , Seyed-Akbari Lida , Torab-Miandoab Amir , Samad-Soltani Taha
Published: August 2019

With regard to the potential of huge knowledge dissemination by academic library websites, their usability is considered as a matter of great interest to university administrators as well as users. In the present study, a descriptive survey was designed aimed at evaluating usability of central library websites of type-1 universities of medical sciences in Iran in order to identify their usability issues and to provide inputs for possible remediation efforts to improve the design of similar websites in the future. The research procedure involved a library study to identify the tasks typically needed on library websites, use of the identified tasks to design a checklist for measuring three dimensions of usability (effectiveness, efficiency, and satisfaction), and finally a usability evaluation by two specialists of medical informatics and two librarianship experts. The given websites were rated “good” (60 % - 80 %) in terms of usability and no statistically significant difference was found between evaluations by different experts. It was concluded that more attention to website usability could improve users’ interest in services and facilitate realisation of goals in parent organisations. The results of this study could provide a basic framework for website design and improvement through giving proper attention to usability dimensions.
Target Detection Its Relation with Individual and Target Features
Authors: Earla Prarthana , Kaur Gurpreet , Yaseen Syed
Published: August 2019

The phenomenon of target detection is studied. Explored its correlates using the technique of Narrative Overview. The phenomenon of target detection begins with the process of visual search. The saliency of the targets, acts as a factor to make the search efficient. The processing of the stimulus (using Bottom-Up and Top-Down approaches) is achieved by the engagement of personal characteristics of the individual like cognitive ability and perceptual speed. The role of these individual processes and their interaction with each other to help achieve target detection is the focus of the present study. The tests designed to measure these individual processes are also listed
Effect of Storage Temperature on Bio efficacy of Aqueous Extract of Ganoderma lucidum
Authors: Tulsawani Rajkumar , Sharma Purva , Rautela Mamta
Published: August 2019

Stability testing is key requirement in the drug development process along with storage temperature which may deteriorate bio-constituents and efficacy of natural products. Aqueous extract of Ganoderma lucidum has revealed pharmacological effects against high altitude stressors and has potential for mitigating high altitude maladies. In the present study, the extract of Ganoderma lucidum was stored at different storage conditions such as room temperature, 4 °C and -20 °C for two year and qualitative and quantitative analysis of bio-constituents and bio-efficacy was carried out. No significant change was observed in any extract kept in different temperature conditions in terms of its polysaccharide, phenolic and flavonoids content. The extract kept at room temperature absorbed slight moisture in few samples but no change in overall polysaccharide, phenolic and flavonoids content was recorded. The moisture absorption problem was not observed in extracts stored at 4 °C and -20 °C. The bio-efficacy of the extract at room temperature, 4 °C or -20 °C were comparable to the freshly prepared extract and the data from the studies suggest that extract has good shelf life up to two year without loss of bio-efficacy. Overall, the extract retained its bio-efficacy for two years at different temperature storage conditions.
Evaluation of DNA Extraction Methods of Mule Dung
Authors: Vaid Rajesh Kumar , Anand Taruna , Batra Priyanka , Legha Ram Avtar , Tripathi Bhupendra Nath
Published: August 2019

DNA isolation is a critical step in microbial community analysis of animal dung. DNA isolation from mule dung is challenging due to microbial diversity, composition and chemical nature of mule dung. Therefore, selection of an appropriate DNA isolation method is important to analyse the complete microbial diversity. In the current study, we evaluated the DNA isolation from mule dung samples (n=11) using QiAmp Mini stool kit as per manufacturer’s procedure with modifications. The results suggest that modifications in proprietary column based method improved the DNA quality and quantity suitable for mule dung microbial community analyses.
Rheology of Fumed Silica and Polyethylene Glycol Shear Thickening Suspension with Nanoclay as an Additive
Authors: Singh Mansi , Verma Sanjeev K , Biswas Ipsita , Mehta Rajeev
Published: August 2019

Shear thickening properties of fumed silica-polyethylene glycol (PEG) with shear thickening fluid (STF) of different concentrations and with an organically modified clay, Nanomer I.28 E as nano-additive have been investigated by both steady-state and dynamic state rheology. Difference in rheology if instead of nanoclay, an equal wt% of additional fumed silica is added to 20 per cent fumed silica-PEG200 STF, has been studied. At 25 °C, in case of addition of nanoclay the increase in critical viscosity is less than that observed for same additional amount of fumed silica. Interestingly, an opposite result is seen at higher temperatures i.e. 45 °C and 55 °C. Moreover, the difference in steady-state and dynamic state viscosity values decreases on addition of nanoclay. It is noted that an increase in concentration of clay increases the value of dynamic parameters whereas for STF of only fumed silica particles the values are constant irrespective of the change in concentration. More importantly, ease of processing, elasticity, stability and consistency of rheological results of STF increases to a significant extent on addition of relatively inexpensive nano-additive.
An Intelligent Reconnaissance Framework for Homeland Security
Authors: Kumar Tarun , Kushwaha Dharmender Singh
Published: August 2019

The cross border terrorism and internal terrorist attacks are critical issues for any country to deal with. In India, such types of incidents that breach homeland security are increasing now a day. Tracking and combating such incidents depends only on the radio communications and manual operations of security agencies. These security agencies face various challenges to get the real-time location of the targeted vehicles, their direction of fleeing, etc. This paper proposes a novel application for automatic tracking of suspicious vehicles in real-time. The proposed application tracks the vehicle based on their registration number, type, colour and RFID tag. The proposed approach for vehicle recognition based on image processing achieves 92.45 per cent accuracy. The RFID-based vehicle identification technique achieves 100 per cent accuracy. This paper also proposes an approach for vehicle classification. The average classification accuracy obtained by the proposed approach is 93.3 per cent. An integrated framework for tracking of any vehicle at the request of security agencies is also proposed. Security agencies can track any vehicles in a specific time period by using the user interface of the application.
Effect of Helical Winding Angle on External Pressure based Buckling of Partially Filled Thin Composite Cylindrical Shells
Authors: Dash A P , Velmurugan R , Prasad M S R
Published: August 2019

Effect of helical winding angle on buckling load of thin composite tubes is investigated in this work.  Experiments are conducted on both empty and partially filled S2 glass tubes to estimate contribution of strength to the tubes by the filler material.  Chosen filler material mechanically simulates behavior of typical solid propellant used in aerospace application.   FE analysis with non-linear effect correlates well with the experimental data.  Three series of experiments are conducted to quantify effect of helical winding angle and increase in volumetric loading fraction(VLF).  Results confirm appreciable improvement in strength of filled tubes for higher VLF.  For the chosen pattern of winding, lower winding angle provides more strength to the tubes against external pressure buckling.
Numerical Simulation of the TNT Solidification Process
Authors: Catureba Rafaela Pedroso , Caldeira Aldelio Bueno , Guedes Rodrigo Otávio de Castro
Published: August 2019

The solidification phenomenon is present in the casting process of energetic materials. In defence industry, trinitrotoluene (TNT) is used as main charge for high explosive ammunitions. The present study tackles the numerical simulation of the solidification process of TNT by means of a two-dimensional transient model in cylindrical coordinates. The heat conduction problem is solved by using the enthalpy method that rewrites the governing equation in terms of this variable. The transient diffusive equation is then numerically solved by applying finite volumes in an explicit scheme. The analysis the mold thickness and the convective boundary conditions are analysed to assess how they affect heat transfer during solidification. Results obtained allow for a better comprehension of this type of problem.
Blast Wave Characteristics and TNT Equivalent of Improvised Explosive Device at Small scaled Distances
Authors: Chiquito Maria , Castedo Ricardo , Lopez Lina M. , Santos Anastasio P. , Mancilla Juan M. , Yenes Jose I.
Published: August 2019

A significant number of airblast test have been carried out with the purpose to characterise and analyse the properties of improvised explosive device (IED) with non-conventional explosives in terms of knowing the effects on people and/or structures. Small devices with 1.5 kg of explosive, initiated with a detonating cord have been studied. Seven different mixtures have been tested with two types of ammonium nitrate AN (technical and fertilizer) in different forms like prills or powder. In some cases, the ammonium nitrate has been mixed with fuel oil while in others, it has been mixed with aluminum. The TNT equivalent based on pressure, impulse, arrival time, positive phase duration and shock front velocity have been calculated and analysed for each mixture. Comparing the field test data obtained with respect to the representation of the UFC 3-340-02 values, it can be seen that the parameters measured are consistent. The IEDs with fertilizer ammonium nitrate do not detonate with the present charge conditions so the shockwave generated is only due to the detonating cord. When using the technical ammonium nitrate, ANFO can partially detonate and generate a potentially dangerous shockwave. Finally, the IED with AN and aluminum produces a TNT equivalent close to one when the technical AN is used.
Phylogenetic relationships within the genus Hypnea (Cystocloniaceae, Rhodophyta): convergent evolution and its implications in the infrageneric classification
Authors: de Jesus Priscila Barreto , Nauer Fabio , Lyra Goia de Mattos , de Araújo Valter Loureiro , de Carvalho Igor Araújo Santos , de Castro Nunes José Marcos , Cassano Valéria , Oliveira Mariana Cabral , Schnadelbach Alessandra Selbach
Published: August 2019

Hypnea is a monophyletic genus with a complex nomenclatural and taxonomic history, and is an important commercial source of carrageenan. Phylogenies of this genus have been accessed based primarily on Asian species; however, recent studies performed in South America revealed a great diversity of species, for which phylogenetic relationships need to be evaluated. Three infrageneric sections are recognized in the genus: Pulvinatae, Spinuligerae, and Virgatae; however, morphological and molecular circumscriptions within each section lack clarity. In this study, we analyzed three distinct markers to establish phylogenetic relationships among Hypnea species. To assign each species to the correct section, morphological data were obtained from original descriptions, reference literature, and comparisons with type/topotype and herbaria specimens. Our analyses recovered robust phylogenies for the genus and provided new insights on the taxonomic status and relationships among and within Hypnea species. The combination of three genetic markers increased the resolution and support, resulting in the largest and best-resolved phylogeny of the genus to date. Single and combined analyses revealed that the three sections of the genus Hypnea are taxonomically irrelevant, as currently recognized. Morphological differences are not associated with monophyletic groups and similarities among clades could be better explained by convergent evolution in thallus habit.
Mukai’s program (reconstructing a K3 surface from a curve) via wall-crossing
Authors: Feyzbakhsh Soheyla
Published: August 2019

LetCbe a curve of genusg=11{g=11}org≥13{g\geq 13}on a K3 surface whose Picard group is generated by the curve class[C]{[C]}. We use wall-crossing with respect to Bridgeland stability conditions to generalise Mukai’s program to this situation: we show how to reconstruct the K3 surface containing the curveCas a Fourier–Mukai transform of a Brill–Noether locus of vector bundles onC.
Regularity of Lagrangian flows over RCD*(K, N) spaces
Authors: Brué Elia , Semola Daniele
Published: August 2019

The aim of this note is to provide regularity results for Regular Lagrangian flows of Sobolev vector fields over compact metric measure spaces verifying the Riemannian curvature dimension condition.
We first prove, borrowing some ideas already present in the literature, that flows generated by vector fields with bounded symmetric derivative are Lipschitz, providing the natural extension of the standard Cauchy–Lipschitz theorem to this setting. Then we prove a Lusin-type regularity result in the Sobolev case (under the additional assumption that the m.m.s. is Ahlfors regular) therefore extending the already known Euclidean result.
On the bounded approximation property on subspaces of ℓ
p
when 0 < p < 1 and related issues
Authors: Cabello Sánchez Félix , Castillo Jesús M. F. , Moreno Yolanda
Published: August 2019

This paper studies the bounded approximation property (BAP) in quasi-Banach spaces.
In the first part of the paper, we show that the kernel of any surjective operator

ℓ
p

→
X

{\ell_{p}\to X}

has the BAP when X has it and

0
<
p
≤
1

{0<p\leq 1}

, which is an analogue of the corresponding result of Lusky for Banach spaces.
We then obtain and study nonlocally convex versions of the Kadec–Pełczyński–Wojtaszczyk complementably universal spaces for Banach spaces with the BAP.
On Kharazishvili type measures in infinite-dimensional Polish vector spaces
Authors: Kirtadze Aleks
Published: August 2019

Some questions are discussed concerning the existence of nonzero
σ-finite invariant Borel measures in infinite-dimensional
Polish vector spaces.
Automorphism groups of mono-unary algebras and CH
Authors: Kipiani Archil
Published: August 2019

A characterization of all cardinal numbers that are cardinals of automorphism groups of mono-unary algebras is given. Some connections are also established between the notion of an automorphism of mono-unary algebras and the continuum hypothesis. Close connections of the obtained results with one problem of Ulam are also considered.
Microwave drying of nickel-containing residue: dielectric properties, kinetics, and energy aspects
Authors: Guo Zhanyong , Li Fachuang , Su Guang , Zhai Demei , Liu Chenhui
Published: August 2019

Nickel-containing residue (NCR) is a hazardous solid waste from battery production lines. Recently, the interest in recovering valuable metals from NCR has increased because sustainable utilization of resources is more and more valued. Drying is a key part of the recovery process. In this study, we measured the dielectric properties of the NCR for different moisture contents and temperatures using the cavity perturbation method at 2.45 GHz. The microwave absorption characteristics of NCR had a positive correlation with the moisture content, while it was less efficient in the 20-180°C temperature range. Then found that the microwave drying data at different microwave powers (400-700 W) and for different sample weights (60-120 g) have a better fit with the Midilli-Kucuk model. The activation energy (Ea) was received as 9.76 W/g using an exponential expression based on the Arrhenius equation. Finally, the energy consumption reduce 110 W·h/kg than that of drying with a single microwave power by optimizing the microwave drying process.
Simple and convenient two step synthesis of 5-bromo-2,3-dimethoxy-6-methyl-1,4-benzoquinone
Authors: Qiu Yong-Fu , Lu Bin , Yan Yi-Yu , Zhou Jin , Wang Jin
Published: August 2019

5-bromo-2,3-dimethoxy-6-methyl-1,4-benzoquinone 3, a key intermediate for preparing coenzyme Q compounds, was readily synthesized in two steps by a reaction sequence starting from the commercially available 3,4,5-trimethoxytoluene 1 via bromination and oxidation reactions. Persulfate salts were first employed as oxidants to synthesize 1,4-benzoquinone, the overall yield of title compound 3 was 65%.
Dynamic Behavior of an SIR Epidemic Model along with Time Delay; Crowley–Martin Type Incidence Rate and Holling Type II Treatment Rate
Authors: Kumar Abhishek , Nilam
Published: August 2019

In this article, we propose and analyze a time-delayed susceptible–infected–recovered (SIR) mathematical model with nonlinear incidence rate and nonlinear treatment rate for the control of infectious diseases and epidemics. The incidence rate of infection is considered as Crowley–Martin functional type and the treatment rate is considered as Holling functional type II. The stability of the model is investigated for the disease-free equilibrium (DFE) and endemic equilibrium (EE) points. From the mathematical analysis of the model, we prove that the model is locally asymptotically stable for DFE when the basic reproduction number

R
0

{R_0}

is less than unity

(

R
0

<
1
)

({R_0} \lt 1)

and unstable when

R
0

{R_0}

is greater than unity

(

R
0

>
1
)

({R_0} \gt 1)

for time lag

τ
≥
0

\tau \ge 0

. The stability behavior of the model for DFE at

R
0

=
1

{R_0} = 1

is investigated using Castillo-Chavez and Song theorem, which shows that the model exhibits forward bifurcation at

R
0

=
1

{R_0} = 1

. We investigate the stability of the EE for time lag

τ
≥
0

\tau \ge 0

. We also discussed the Hopf bifurcation of EE numerically. Global stability of the model equilibria is also discussed. Furthermore, the model has been simulated numerically to exemplify analytical studies.
Identification of an unknown shear force in a cantilever Euler–Bernoulli beam from measured boundary bending moment
Authors: Hasanov Alemdar , Baysal Onur , Itou Hiromichi
Published: August 2019

An inverse problem of identifying an unknown shear force

g
⁢

(
t
)

{g(t)}

on the inaccessible boundary

x
=
l

{x=l}

in a system governed by the general form Euler–Bernoulli beam equation

ρ
⁢

(
x
)

⁢

u

t
⁢
t

+

μ
⁢

(
x
)

⁢

u
t

+

(

r
⁢

(
x
)

⁢

u

x
⁢
x

)

x
⁢
x

=
0

,

(
x
,
t
)

∈

(
0
,
l
)

×

(
0
,
T
)

\rho(x)u_{tt}+\mu(x)u_{t}+(r(x)u_{xx})_{xx}=0,\quad(x,t)\in(0,l)\times(0,T)

subject to the boundary conditions

u
⁢

(
0
,
t
)

=

u
x

⁢

(
0
,
t
)

=
0

,

u

x
⁢
x

⁢

(
l
,
t
)

|

x
=
l

=
0

,

-

(

r
⁢

(
x
)

⁢

u

x
⁢
x

⁢

(
x
,
t
)

)

x

|

x
=
l

=

g
⁢

(
t
)

,

u(0,t)=u_{x}(0,t)=0,\quad u_{xx}(l,t)|_{x=l}=0,\quad-(r(x)u_{xx}(x,t))_{x}|_{x%
=l}=g(t),

is studied.
The bending moment

𝙼
⁢

(
t
)

:-

-

r
⁢

(
0
)

⁢

u

x
⁢
x

⁢

(
0
,
t
)

{\mathtt{M}(t)\coloneq-r(0)u_{xx}(0,t)}

given at the accessible boundary

x
=
0

{x=0}

is assumed to be a measured output.
The Neumann-to-Neumann operator

Φ

[
⋅
]

:
𝒢
⊂

H
p

(
0
,
l
)

↦

L
2

(
0
,
T
)

,

(
Φ
g
)

(
t
)

:-
-
r

(
0
)

u

x
⁢
x

(
0
,

t
g

)

\Phi[\,{\cdot}\,]\colon\mathcal{G}\subset H^{p}(0,l)\mapsto L^{2}(0,T),\quad(%
\Phi g)(t)\coloneq-r(0)u_{xx}(0,t_{g})

corresponding to this inverse problem is shown to be compact (

p
=
3

{p=3}

) and Lipschitz continuous (

p
=
2

{p=2}

).
These properties allow us to prove the existence of a solution of the minimization problem for the Tikhonov functional

J
⁢

(
g
)

:-

∥

Φ
⁢
g

-
𝙼

∥

L
2

⁢

(
0
,
T
)

2

{J(g)\coloneq\lVert\Phi g-\mathtt{M}\rVert^{2}_{L^{2}(0,T)}}

.
It is proved that this functional is Fréchet differentiable.
Furthermore, an explicit formula for the Fréchet gradient of this functional is derived by making use of the unique solution to corresponding adjoint problem.
A numerical method based on Hermitian finite elements and conjugate gradient algorithm is developed for the solution of the inverse boundary value problem.
Numerical examples with random noisy measured outputs are presented to illustrate the validity and effectiveness of the proposed approach.
On Diophantine equations involving Lucas sequences
Authors: Trojovský Pavel
Published: August 2019

In this paper, we shall study the Diophantine equation un = R(m)P(m)Q(m), where un is a Lucas sequence and R, P and Q are polynomials (under weak assumptions).
Functional sol-gel coated electrospun polyamide 6,6/ZnO composite nanofibers
Authors: Celik Bedeloglu Ayse , Islek Cin Zeynep
Published: August 2019

Polymer-based nanofibers are good candidates for medical textiles due to their excellent properties including high surface area, breathability and flexibility. Doping polymer nanofibers with different nanoparticles enhances their existing properties. In this study, electrospun polyamide 6,6 (PA6,6) composite nanofibers containing ZnO nanoparticles (<50 nm) in different amounts (1%, 3% and 5%) were first produced by electrospinning technique; then, these nanofibers were coated with sol-gel ZnO solution (0.5 m) via dip coating method at 1000, 3000 and 5000 μm/s speeds. The sol-gel coating process increased the breaking strength of nanofiber mats, while the incorporation of ZnO nanoparticles into the polymer nanofibers reduced. Compared to pure PA6,6 nanofiber mats, the ZnO sol-gel coated samples and doped nanofibers had lower reflectance values. In addition, the reflection values decreased as the additive and coating speed increased.
Comparison of ReO4
− and TcO4
− in solvent extraction systems
Authors: Eiroa-Lledo Cecilia , Lecrivain Lindsey , Parker T. Gannon , Wall Donald E. , Wall Nathalie A.
Published: August 2019

The suitability of perrhenate (Re(VII)) to act as an analog for pertechnetate (Tc(VII)) was tested using solvent extraction and the carrier/tracer systems 99Tc(VII)/99mTc(VII) and 185/187Re/186/188Re(VII). Perrhenate is often used as a non-radioactive analogue of pertechnetate, but scarce data is available for the comparison of these metals for liquid-liquid extraction applications. Results show that neither Tc(VII) nor Re(VII) extraction is influenced by pH in the 2–8 range. The anion extractant also separates electrolyte anions, with increasing extraction following the order Cl− < NO3
− ≪ ClO4
−, resulting in a decreased Tc(VII) and Re(VII) extraction in presence of salt. In particular, the extraction of Re and Tc is suppressed in presence of NaCl at concentrations higher than 1 mM. While Tc extraction is larger than that of Re in absence of electrolyte, they are statistically identical in presence of enough electrolyte. Furthermore, tetraphenylphosphonium chloride (Ph4PCl) is a stronger extractant than iodonitrotetrazolium chloride (INT).
Protactinium(V) in aqueous solution: a light actinide without actinyl moiety
Authors: Le Naour Claire , Roques Jérôme , Den Auwer Christophe , Moisy Philippe , Aupiais Jean
Published: August 2019

This review highlights recent data on the complexation of Pa(V) with inorganic (fluoride and sulphate) and organic (oxalate, nitrilotriacetate, diethylenetriaminepentaacetate) ligands in solution. New thermodynamic parameters relative to the complexation of Pa(V) with sulphate are presented. The review also includes gas phase and theoretical studies focused on the interaction of Pa(V) in the dioxo and oxo forms with water.
Hyers–Ulam stability for coupled random fixed point theorems and applications to periodic boundary value random problems
Authors: Boudaoui A. , Caraballo T. , Blouhi T.
Published: August 2019

In this paper, we prove some existence, uniqueness and Hyers–Ulam stability results for the coupled random fixed point of a pair of contractive type random operators on separable complete metric spaces.
The approach is based on a new version of the Perov type fixed point theorem for contractions.
Some applications to integral equations and to boundary value problems are also given.
Internal stabilization of stochastic 3D Navier–Stokes–Voigt equations with linearly multiplicative Gaussian noise
Authors: Thanh Nguyen Van
Published: August 2019

We show that the 3D stochastic Navier–Stokes–Voigt equations with linearly multiplicative Gaussian noise can be stabilized in probability by linear internal feedback controllers with support large enough.
Clustering methods for single-cell RNA-sequencing expression data: performance evaluation with varying sample sizes and cell compositions
Authors: Suner Aslı
Published: August 2019

A number of specialized clustering methods have been developed so far for the accurate analysis of single-cell RNA-sequencing (scRNA-seq) expression data, and several reports have been published documenting the performance measures of these clustering methods under different conditions. However, to date, there are no available studies regarding the systematic evaluation of the performance measures of the clustering methods taking into consideration the sample size and cell composition of a given scRNA-seq dataset. Herein, a comprehensive performance evaluation study of 11 selected scRNA-seq clustering methods was performed using synthetic datasets with known sample sizes and number of subpopulations, as well as varying levels of transcriptome complexity. The results indicate that the overall performance of the clustering methods under study are highly dependent on the sample size and complexity of the scRNA-seq dataset. In most of the cases, better clustering performances were obtained as the number of cells in a given expression dataset was increased. The findings of this study also highlight the importance of sample size for the successful detection of rare cell subpopulations with an appropriate clustering tool.
Multivariate risk measures in the non-convex setting
Authors: Haier Andreas , Molchanov Ilya
Published: August 2019

The family of admissible positions in a transaction costs model is a
random closed set, which is convex in case of proportional transaction costs.
However, the convexity fails, e.g., in case of fixed transaction costs or when only a finite number of transfers are possible.
The paper presents an approach to measure risks of such positions based on the idea of considering all selections of the portfolio and checking if one of them is acceptable.
Properties and basic examples of risk measures of non-convex portfolios are presented.
Vollständige Parametrisierung für die 3D Evolventenverzahnung
Authors: Härtig Frank , Stein Martin , Kniel Karin
Published: August 2019

Beschrieben wird eine vollständige Definition für zylindrische Evolventenverzahnungen als dreidimensionales Formelement. Grundlage ist ein evolventisches Koordinatensystem. Mit ihm lassen sich innen und außen verzahnte Räder mit linkssteigender und rechtssteigender Flankenrichtung sowie Geradverzahnungen darstellen. Besondere Bedeutung gewinnt diese Darstellung im Bereich der Verzahnungs- und Koordinatenmesstechnik. Gewöhnlich liegen die Messpunkte als kartesische Koordinaten in Form von Tastkugelmittelpunkten des Antastelements vor. Diese können außerhalb ihrer Bezugsflächen nahezu beliebig über die Flanke verteilt sein. Der Einsatz von Evolventenkoordinaten ist Grundlage für eine einfache Auswertung der Verzahnungsparameter. Die dargestellten Definitionen und Algorithmen ergänzen bestehende Richtlinien und Normen, in denen die Zusammenhänge bisher nicht beschrieben sind.
Differential Regulation of Innate and Learned Behavior byCreb1/Crh-1inCaenorhabditis elegans
Authors: Dahiya Yogesh , Rose Saloni , Thapliyal Shruti , Bhardwaj Shivam , Prasad Maruthi , Babu Kavita
Published: August 2019

Memory formation is crucial for the survival of animals. Here, we study the effect of differentcrh-1[Caenorhabditis eleganshomolog of mammalian cAMP response element binding protein 1 (CREB1)] isoforms on the ability ofC. elegansto form long-term memory (LTM). Null mutants increb1/crh-1are defective in LTM formation across phyla. We show that a specific isoform of CREB1/CRH-1, CRH-1e, is primarily responsible for memory related functions of the transcription factor inC. elegans. Silencing of CRH-1e-expressing neurons during training for LTM formation abolishes the LTM of the animal. Further, CRH-1e expression in RIM neurons is sufficient to rescue LTM defects ofcreb1/crh-1-nullmutants. We go on to show that apart from being LTM defective,creb1/crh-1-nullanimals show defects in innate chemotaxis behavior. We further characterize the amino acids K247 and K266 as responsible for the LTM related functions of CREB1/CRH-1 while being dispensable for its innate chemotaxis behavior. These findings provide insight into the spatial and temporal workings of a crucial transcription factor that can be further exploited to find CREB1 targets involved in the process of memory formation.

SIGNIFICANCE STATEMENTThis study elucidates the role of a specific isoform of CREB1/CRH-1, CRH-1e, inCaenorhabditis elegansmemory formation and chemosensation. Removal of this single isoform ofcreb1/crh-1shows defects in long-term memory formation in the animal and expression of CREB1/CRH-1e in a single pair of neurons is sufficient to rescue the memory defects seen in the mutant animals. We further show that two specific amino acids of CRH-1 are required for the process of memory formation in the animal.
Imbalanced Corticospinal and Reticulospinal Contributions to Spasticity in Humans with Spinal Cord Injury
Authors: Sangari Sina , Perez Monica A.
Published: August 2019

Damage to the corticospinal and reticulospinal tract has been associated with spasticity in humans with upper motor neuron lesions. We hypothesized that these descending motor pathways distinctly contribute to the control of a spastic muscle in humans with incomplete spinal cord injury (SCI). To test this hypothesis, we examined motor-evoked potentials (MEPs) elicited by transcranial magnetic stimulation over the leg representation of the primary motor cortex, maximal voluntary contractions (MVCs), and the StartReact response (shortening in reaction time evoked by a startling stimulus) in the quadriceps femoris muscle in male and females with and without incomplete SCI. A total of 66.7% of the SCI participants showed symptoms of spasticity, whereas the other 33.3% showed no or low levels of spasticity. We found that participants with spasticity had smaller MEPs and MVCs and larger StartReact compared with participants with no or low spasticity and control subjects. These results were consistently present in spastic subjects but not in the other populations. Clinical scores of spasticity were negatively correlated with MEP-max and MVC values and positively correlated with shortening in reaction time. These findings provide evidence for lesser corticospinal and larger reticulospinal influences to spastic muscles in humans with SCI and suggest that these imbalanced contributions are important for motor recovery.

SIGNIFICANCE STATEMENTAlthough spasticity is one of the most common symptoms manifested in humans with spinal cord injury (SCI) to date, its mechanisms of action remain poorly understood. We provide evidence, for the first time, of imbalanced contributions of the corticospinal and reticulospinal tract to control a spastic muscle in humans with chronic incomplete SCI. We found that participants with SCI with spasticity showed small corticospinal responses and maximal voluntary contractions and larger reticulospinal gain compared with participants with no or low spasticity and control subjects. These results were consistently present in spastic subjects but not in the other populations. We showed that imbalanced corticospinal and reticulospinal tract contributions are more pronounced in participants with chronic incomplete SCI with lesser recovery.