bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nie tylko do archiwum. Wokół literackiego zdarzenia i filmowego dokumentu
Authors: Pławuszewski Piotr 
Published: February 2021

Artykuł jest próbą przyjrzenia się miejscu spotkania: kina dokumentalnego i kultury literackiej, pojmowanej tu w kontekście „zdarzeniowości” i jej dwóch konkretnych przejawów, czyli poetyckiego slamu i spotkania autorskiego. Rozważając to zagadnienie, trudno poprzestać na wniosku, iż dokumentalna kamera, towarzysząc slamowej rywalizacji lub spotkaniu z pisarzem, musi ograniczyć swój udział wyłącznie do nieskomplikowanej funkcji archiwizacyjnej. Analiza wybranych przykładów (warto od razu dodać – katalog filmowych tytułów, uosabiających sformułowane rozpoznania, nie jest bogaty) dowodzi, że wspomniany „styk” zawiera w sobie potencjał znacznie szerszy: dokument potrafi skutecznie uchwycić choćby unikalną dramaturgię zdarzenia, jego semantykę wpisaną nie tylko w słowo, ale i obraz, kryje on w sobie też niemałe możliwości interpretacyjne. Innymi słowy, jeśli ujmować filmowy dokumentalizm jako „dodatek” do literackiego zdarzenia, to tylko ze świadomością tych nie zawsze oczywistych, lecz istotnych znaczeniowo implikacji.
On a Class of Reaction-Diffusion Equations with Aggregation
Authors: Chen Li , Desvillettes Laurent , Latos Evangelos 
Published: February 2021

Abstract
In this paper, global-in-time existence and blow-up results are shown for a reaction-diffusion equation appearing in the theory of aggregation phenomena (including chemotaxis). Properties of the corresponding steady-state problem are also presented. Moreover, the stability around constant equilibria and the non-existence of nonconstant solutions are studied in certain cases.
Calcium Dynamics Regulate Protective Responses and Growth ofStaphylococcus aureusin Macrophages
Authors: Verma Chaitenya , Rana Ankush Kumar , Anang Vandana , Tiwari Brijendra K , Singh Aayushi , Saraswati Shakuntala Surender Kumar , Shariff Malini , Natarajan Krishnamurthy 
Published: February 2021

AbstractStaphylococcus aureus(S. aureus) is a gram-positive bacteria, which causes various fatal respiratory infections including pneumonia. The emergence of Methicillin-ResistanceStaphylococcus aureus(MRSA) demands a thorough understanding of host-pathogen interactions. Here we report the role of calcium in regulating defence responses ofS. aureusin macrophages. Regulating calcium fluxes in cells by different routes differentially governs the expression of T cell costimulatory molecule CD80 and Th1 promoting IL-12 receptor. Inhibiting calcium influx from extracellular medium increased expression of IFN-γ and IL-10 while blocking calcium release from the intracellular stores inhibited TGF-β levels. Blocking voltage-gated calcium channels (VGCC) inhibited the expression of multiple cytokines. While VGCC regulated the expression of apoptosis protein Bax, extracellular calcium-regulated the expression of Cytochrome-C. Similarly, VGCC regulated the expression of autophagy initiator Beclin-1. Blocking VGCC or calcium release from intracellular stores promoted phagosome-lysosome fusion, while activating VGCC inhibited phagosomelysosome fusion. Finally, calcium homeostasis regulated intracellular growth ofStaphylococcus, although using different mechanisms. While blocking extracellular calcium influx seems to rely on IFN-γ and IL-12Rβ receptor mediated reduction in bacterial survival, blocking either intracellular calcium release or via VGCC route seem to rely on enhanced autophagy mediated reduction of intracellular bacterial survival. These results point to fine-tuning of defence responses by routes of calcium homeostasis.
An Angular 3D Path Selection Protocol in Wireless Sensor Networks
Authors: Gupta Naveen Kumar , Yadav Rama Shankar , Nagaria Rajendra Kumar , Gupta Deepak 
Published: February 2021

AbstractGeographical routing is an area of interest for wireless sensor networks because of its scalability and local decision making capability. Usually, geographical routing protocols rely on greedy approach and suffer from the void node problem (VNP). This paper presents an angular three-dimensional routing protocol (A3DR) for wireless sensor networks. In A3DR, the next hop is selected from nodes available in solid angle decided dynamically based on network density,i.e., larger solid angle for sparse networks while a smaller angle for dense one. The delay based contention mechanism has been proposed to select a suitable forwarding node among nodes lying in a particular solid angle. A3DR has a provision to adaptively tune the solid angle to resolve the void node problem. Further, the proposed protocol A3DR will take care of traffic congestion problem suffered by beaconless routing protocol. The A3DR tackle the concave void problem by allowing conditional backtracking to find another suitable path and prevent looping. Additionally, A3DR address overhear problem by utilizing the concept of request-to-forward and clear-to-forward for the nodes lying outside the solid angle 60°. The performance of proposed A3DR is compared with existing protocols by implementing it on the INET framework under OMNET++ simulator. The simulation results indicate that A3DR achieves a high packet reception rate while maximizing the residual energy and minimizing traffic overhead.
Pseudo orthogonal Latin squares
Authors: Faruqi Shahab , Katre S. A. , Garg Manisha 
Published: February 2021

Abstract
Two Latin squares A, B of order n are called pseudo orthogonal if for any 1 ≤ i, j ≤ n there exists a k, 1 ≤ k ≤ n, such that A(i, k) = B(j, k). We prove that the existence of a family of m mutually pseudo orthogonal Latin squares of order n is equivalent to the existence of a family of m mutually orthogonal Latin squares of order n. We also obtain exact values of clique partition numbers of several classes of complete multipartite graphs and of the tensor product of complete graphs.
Panchromatic colorings of random hypergraphs
Authors: Kravtsov D. A. , Krokhmal N. E. , Shabanov D. A. 
Published: February 2021

Abstract
We study the threshold probability for the existence of a panchromatic coloring with r colors for a random k-homogeneous hypergraph in the binomial model H(n, k, p), that is, a coloring such that each edge of the hypergraph contains the vertices of all r colors. It is shown that this threshold probability for fixed r < k and increasing n corresponds to the sparse case, i. e. the case

p
=
c
n
/

(

n

k

)

$p = cn/{n \choose k}$

for positive fixed c. Estimates of the form c
1(r, k) < c < c
2(r, k) for the parameter c are found such that the difference c
2(r, k) − c
1(r, k) converges exponentially fast to zero if r is fixed and k tends to infinity.
MOFs/PVA hybrid membranes with enhanced mechanical and ion-conductive properties
Authors: Lu Chao , Xiao Hang , Chen Xi 
Published: February 2021

Abstract
Nanomaterials have been treated as effective dopants for enhancing mechanical and ion-conductive properties of polymer membranes. Among various nanomaterials, metal–organic frameworks are attracting enormous attention from researchers because of their intriguing structural and functional properties. Here we report a gentle and simple synthesis method of ZIF-8 nanomaterials, which are applied as dopants for polyvinyl alcohol composite membranes. This nanomaterials display uniform size distribution and high purity through various structural investigations. The as-prepared polymer composite membranes present enhanced mechanical and ion-conductive properties compared to pristine samples. This work provides a novel ideal on the design of nanomaterial dopants for high-performance polymer membranes.
Preparation and application of carbon and hollow TiO2 microspheres by microwave heating at a low temperature
Authors: Zhang Caiyun , Li Chunhong , Ji Bolin , Jiang Zhaohui 
Published: February 2021

Abstract
A fast, simple, and energy-saving microwave-assisted approach was successfully developed to prepare carbon microspheres. The carbon microspheres with a uniform particle size and good dispersity were prepared using glucose as the raw material and HCl as the dehydrating agent at low temperature (90°C) in an open system with the assistance of microwave heating. The carbon microspheres were characterized by elemental analysis, XRD, SEM, FTIR, TG, and Raman. The results showed that the carbon microspheres prepared under the condition of 18.5% (v/v) HCl and heating for 30 min by microwave had a narrow size distribution. The core–shell structure of the carbon core and TiO2 shell was prepared with (NH4)2TiF6, H3BO3 using the microwave-assisted method. The hollow TiO2 microspheres with good crystallinity and high photocatalytic properties were successfully prepared by sacrificing the carbon microspheres.
Improvement of the electromechanical properties of thermoplastic polyurethane composite by ionic liquid modified multiwall carbon nanotubes
Authors: Xu Qianwei , Zhang Weijia 
Published: February 2021

Abstract
Carbon nanotubes (CNTs) were non-covalently modified by two categories of ionic liquids (ILs), including 1-vinyl-3-ethylimidazole bromide (VEIMBr) and 1-vinyl-3-hexylimidazole bromide (VHIMBr) in the ratio of 1:1 and 1:4, respectively. The surface interaction between CNTs and ILs was well-characterized by FTIR, Raman spectra, XPS, etc. Thermoplastic polyurethane (TPU) containing different amounts of CNTs/ILs was fabricated by melting blending method. TPU-CNTs/ILs composites exhibited simultaneously enhanced electromechanical properties with improved dielectric constant and lowered elastic modulus. The electromechanical sensitivity of sample TPU-3CNT/12VHIMBr increased by approximately 45 times in comparison with that of pure TPU at 200 Hz. Besides, improved dispersion of CNTs/ILs in the TPU matrix was also exhibited.
Effects of oil viscosity on waterflooding: A case study of high water-cut sandstone oilfield in Kazakhstan
Authors: Wang Jincai , Fan Zifei , Zhao Lun , Chen Li , Ni Jun , Wang Chenggang , Zhang Xiangzhong 
Published: February 2021

AbstractAfter a sandstone oilfield enters the high water-cut period, the viscosity of crude oil has an important influence on remaining oil distribution and waterflooding characteristics under the same factors of, e.g., reservoir quality and development methods. Based on a comprehensive interpretation of the waterflooded layers in new oil wells, physical simulation experiments, and reservoir numerical simulations, we analyzed the waterflooding laws of a high water-cut sandstone reservoir with different oil viscosities in Kazakhstan under the same oil production speed, and we clarified the remaining oil potential of reservoirs with different viscosities and proposed corresponding development measures. The results show that low-viscosity oil reservoirs (1 mPa s) have uniform waterflooding, thick streamlines, small waterflooding areas, and low overall waterflooding degrees because of their homogeneous oil–water viscosities. However, within waterflooded areas, the reservoirs have high oil displacement efficiencies and high waterflooding degrees, and the remaining oil is mainly concentrated in the unwaterflooded areas; therefore, the initial production and water cut in new oil wells vary significantly. High-viscosity oil reservoirs (200 mPa s) have severe waterflooding fingering, large waterflooding areas, and high overall waterflooded degrees because of their high oil–water mobility ratios. However, within waterflooded areas, the reservoirs have low oil displacement efficiencies and low waterflooding degrees, and the remaining oil is mainly concentrated in both the waterflooded areas and the unwaterflooded areas; therefore, the differences in the initial production and water cut of new oil wells are small. Moderate-viscosity oil reservoirs (20 mPa s) are characterized by remaining oil distributions that are somewhere in between those of the former two reservoirs. Therefore, in the high water-cut period, as the viscosity of crude oil increases, the efficiency of waterflooding gradually deteriorates and the remaining oil potential increases. In the later development, it is suggested to implement the local well pattern thickening in the remaining oil enrichment area for reservoirs with low viscosity, whereas a gradual overall well pattern thickening strategy is recommended for whole reservoirs with moderate and high viscosity. The findings of this study can aid better understanding of waterflooding law and the remaining oil potential of reservoirs with different viscosities and proposed corresponding development measures. The research results have important guidance and reference significance for the secondary development of high water-cut sandstone oilfields.
Jakimovski–Leviatan operators of Kantorovich type involving multiple Appell polynomials
Authors: Gupta Pooja , Acu Ana Maria , Agrawal Purshottam Narain 
Published: February 2021

Abstract
The purpose of the present paper is to obtain the degree of approximation in terms of a Lipschitz type maximal function for the Kantorovich type modification of Jakimovski–Leviatan operators based on multiple Appell polynomials. Also, we study the rate of approximation of these operators in a weighted space of polynomial growth and for functions having a derivative of bounded variation. A Voronvskaja type theorem is obtained. Further, we illustrate the convergence of these operators for certain functions through tables and figures using the Maple algorithm and, by a numerical example, we show that our Kantorovich type operator involving multiple Appell polynomials yields a better rate of convergence than the Durrmeyer type Jakimovski Leviatan operators based on Appell polynomials introduced by Karaisa (2016).
Green synthesis of silver nanoparticles usingTropaeolum majus: Phytochemical screening and antibacterial studies
Authors: Bawazeer Saud , Rauf Abdur , Shah Syed Uzair Ali , Shawky Ahmed M. , Al-Awthan Yahya S. , Bahattab Omar Salem , Uddin Ghias , Sabir Javeria , El-Esawi Mohamed A. 
Published: February 2021

AbstractThe green biosynthesis of metal nanoparticles of already explored phytomedicines has many advantages such as enhanced biological action, increased bioavailability, etc. In this direction, keeping in view the peculiar medicinal value ofTropaeolum majusL., we synthesized its silver nanoparticles (AgNPs) by adopting eco-friendly and cost-effective protocol by using methanolic and aqueous extract ofT. majus. The synthesized AgNPs were characterized by using several techniques including UV spectroscopic analysis, FTIR analysis, and atomic force microscopy. The methanolic/aqueous extracts ofT. majusand synthesized AgNPs were assessed for antioxidant potential and antimicrobial effect. The preliminary screening showed that theT. majusextracts have variety of reducing phytochemicals including tannins, terpenoids, flavonoids, and cardiac glycosides. The green synthesis of AgNPs was confirmed by the appearance of sharp peak at 430–450 nm in the UV-Visible spectra. The FTIR spectral analysis of extract and AgNPs exhibited that peaks at 2947.23, 2831.50, 2592.33, 2522.89, and 1,411 cm−1disappeared in the spectra of FTIR spectra of the AgNPs, indicating carboxyl and hydroxyl groups are mainly accountable for reduction and stabilization of AgNPs. Atomic force microscopic scan of the synthesized AgNPs confirmed its cylindrical shape with size of 25 µm. The extracts and AgNPs were investigated for antioxidant potential by DPPH-free radical essay, which showed that aqueous extract has significant and dose-independent antioxidant activity; however, the synthesized AgNPs showed decline in antioxidant activity. The extracts and synthesized AgNPs were also evaluated for antibacterial activity againstKlebsiella pneumonia,Staphylococcus aureus, andBacillus subtilis.Neither extract nor AgNPs were active againstKlebsiella pneumonia.The aqueous and methanolic extract exhibited inhibition againstBacillus subtilisand their synthesized AgNPs were active againstStaphylococcus aureus.Our data concluded that the extracts ofT. majushave necessary capping and reducing agents which make it capable to develop stable AgNPs. The aqueous extract ofT. majushas potential antioxidant effect; however, the AgNPs did not enhance its free radical scavenging effect. The bacterial strains’ susceptibility of the extract and AgNPs was changed fromBacillus subtilistoStaphylococcus aureus, respectively. The biological action of AgNPs is changed in case of antibacterial activity which means that AgNPs might change the specificity ofT. majusand likewise other drugs.
Thucydides and Topography: the neglected prevalence and significance of elevated terrain in Classical Greek battles
Authors: Harrold George 
Published: February 2021

Abstract
This article uses Thucydides’ literary evidence to argue that elevated terrain was prevalent in the battles of the Peloponnesian War, contrary to the orthodox view of the Classical Greek battlefield. This argument has four parts. First, Thucydides’ battles are defined and listed. Second, the references to terrain in these battle accounts are catalogued. Third, this collated data is analysed to demonstrate that elevated terrain was indeed prevalent on the battlefields of the Peloponnesian War. And, fourth, some of the military effects of this elevated terrain are explored.
Microdeletion in the IGF-1 receptor gene of a patient with short stature and obesity: a case report
Authors: Yoon Jong Seo , Hwang Il Tae 
Published: February 2021

Abstract

Objectives
Defects in the IGF-1 receptor gene (IGF1R) induce IGF-1 resistance, characterized by intrauterine and postnatal growth retardation, normal or elevated serum IGF-1 levels, and feeding problems. Obesity, idiopathic growth hormone deficiency (IGHD), bone age advancement, and serum IGF-1 level in the lower half of the reference range are very rare clinical features in patients with IGF1R defects.

Case presentation
In this study, we report the atypical clinical manifestations of IGF1R defects. Short stature girl born small for gestational age were initially diagnosed with IGHD. No catch-up growth was achieved despite sufficiently elevated IGF-1 levels after recombinant human growth hormone (rhGH) treatment. Single nucleotide polymorphism microarray analysis finally confirmed terminal deletion of 15q26.2q26.3 in the subject.

Conclusion
Intrauterine growth retardation, postnatal growth failure, and IGF-1 resistance during rhGH treatment are homologous features exhibited by affected patients, and may be predictive of IGF1R defects.
Verification of the stationary module of the ShIPR software system for modelling experiments of the ASTRA HTGR type critical facility
Authors: Zizin M. N. , Boyarinov V. F. , Nevinitsa V. A. , Fomichenko P. A. , Volkov Yu. N. , Kruglikov A. E. 
Published: February 2021

Abstract
Coupled neutronic and thermal hydraulic calculation codes are verified for calculating the design of modern and prospective types of nuclear reactors. This verification is done by comparing experimental and calculated results for stationary and transient conditions. This paper presents ShIPR (Shell of Intelligent Package for Reactor) Integrated Development Environment with automatic generation of head programs based on the chain of computational modules. The aim of this study is to find the reason of a discrepancy in the modelling of sub-critical states that was found in previous work. The comparison of ShIPR stationary module with Monte-Carlo code (MCU) and experimental results on ASTRA HTGR critical facility was presented in the paper. To compare the detector readings and MCU calculation with the ShIPR module, the interpolation cross-section procedure was performed. This procedure allows simulating 235U fission reaction rates (detector readings) in the complicate, annular core, using the micro-cross sections prepared by the cell-lattice code. We found that the calculation accuracy of stationary ShIPR module is on an acceptable level but the macro constants for control rods need to be prepared independently, given with surroundings.
Comparison of back propagation network and radial basis function network in Departure from Nucleate Boiling Ratio (DNBR) calculation
Authors: Safavi A. , Esteki M. H. , Mirvakili S. M. , Khaki M. 
Published: February 2021

Abstract
Since estimating the minimum departure from nucleate boiling ratio (MDNBR) requires complex calculations, an alternative method has always been considered. One of these methods is neural network. In this study, the Back Propagation Neural network (BPN) and Radial Basis Function Neural network (RBFN) are introduced and compared in order to estimate MDNBR of the VVER-1000 light water reactor. In these networks, the MDNBR were predicted with the inputs including core mass flux, core inlet temperature, pressure, reactor power level and position of the control rods. To obtain the data required to design these neural networks, an externally coupledcode was developed and its ability to estimate the thermo-hydraulic parameters of the VVER-1000 reactor was compared with other numerical solutions of this benchmark and the Final Safety Analysis Report (FSAR). After ensuring the accuracy of this coupled-code, MDNBR was calculated for 272 different conditions of reactor operating, and it was used to design BPN and RBFN. Comparison of these two neural networks revealed that when the output SMEs of the two systems were approximately the same, the training process in RBFN was much faster than in BPN and the maximum network error in RBFN was less than in BPN.
Current trends in grammar writing
Authors: Ajanki Rigina , Hamari Arja 
Published: February 2021

AbstractOver the last few decades, there has been a tremendous increase in the production of descriptive grammars for languages that had previously been poorly described or lacked description altogether. In most cases, these are minority languages, and many of them are endangered. To enhance the dialogue between grammar-writers and typologists, the conference Descriptive Grammars and Typology was held at the University of Helsinki (Finland) at the end of March, 2019. In this paper, we discuss three current trends in grammar writing that emerged from the conference plenaries as well as from many other presentations: (i) the target audience of grammars and the role of language communities in grammar writing, (ii) the digitalization of grammaticography and (iii) themes that have earlier been more or less neglected in grammars but that would bring more insight into typological research as well as into understanding the structures of individual languages: discourse, variation, diachrony and contact effect of languages.
Generalized modulation theory for strongly nonlinear gravity waves in a compressible atmosphere
Authors: Schlutow Mark , Wahlén Erik 
Published: February 2021

Abstract
This study investigates strongly nonlinear gravity waves in the compressible atmosphere from the Earth’s surface to the deep atmosphere. These waves are effectively described by Grimshaw’s dissipative modulation equations which provide the basis for finding stationary solutions such as mountain lee waves and testing their stability in an analytic fashion. Assuming energetically consistent boundary and far-field conditions, that is no energy flux through the surface, free-slip boundary, and finite total energy, general wave solutions are derived and illustrated in terms of realistic background fields. These assumptions also imply that the wave-Reynolds number must become less than unity above a certain height. The modulational stability of admissible, both non-hydrostatic and hydrostatic, waves is examined. It turns out that, when accounting for the self-induced mean flow, the wave-Froude number has a resonance condition. If it becomes 1/

1
/

2

1/\sqrt 2

, then the wave destabilizes due to perturbations from the essential spectrum of the linearized modulation equations. However, if the horizontal wavelength is large enough, waves overturn before they can reach the modulational stability condition.