bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH AKTIVITAS, LIKUIDITAS DAN SOLVABILITAS TERHADAP PROFITABILITAS PADA PERUSAHAAN MAKANAN DAN MINUMAN DI BEI 2014-2018
Authors: Matondang Firdaus Fridikus , Wuryani Eni
Published: March 2021

The purpose of this study was to determine the effect of activity, liquidity and solvency on profitability in food and beverage companies listed on the Indonesia Stock Exchange in 2014-2018. The sample used is 60 annual financial report data selected based on a targeted sample using a purposive sample. This type of research is quantitative research. The data analysis technique used multiple linear regression with the help by means of SPSS test equipment. Measurement of research variables using working capital turnover ratio, quick ratio, debt to equity ratio and return on asset. The results showed that activity and liquidity partially affected profitability, while solvency did not affect profitability.

Keywords: Activity;Liquidity;Profitability;Solvency
Some Preliminary Results of the Synthesis and Investigation of the Glass/FTO/Si/Au/ Embedded Thin Film for Application in the Modified Plasmonic Solar Cell
Authors: Tien Thanh Nguyen , Tien Thanh Dao , Si Hieu Nguyen , Thi Mai Huong Nguyen
Published: March 2021

This paper outlines the synthesis of the glass/FTO/Au/ and of the glass/FTO/Si/Au/ nanoparticles embedded thin films and then outlines some obtained experiment results concerning their properties of surface morphology, structure, chemical composition and optical absorption in comparison. Based on the measured results of SEM, EDX, XRD and UV-VIS spectroscopy we observed that the structure of the sputtered Si layer is amorphous phase meanwhile the structure of the sputtered Au layer is crystallized phase. Depending on the sputtered layers (Si, Au) thicknesses and technological conditions the different surfaces morphologies of the Au flat surface layer or the Au bumpy surface layer with different sizes of nanoparticles /clusters are formed on both the samples surfaces of FTO and amorphous Si layers. Notably, the optical absorption spectra of glass/FTO/Si/Au thin film in both cases of thermal annealing and without thermal annealing are significantly enhanced and shifted to blue- and red regions, these results can be explained by the role of the amorphous Si layer, as well as the Si/Au Schottky layers/nanoparticles barrier configurations caused. The glass/FTO/Si/Au layer/nanoparticles thin films could be used for integration with the core structure (Au/TiO2) of plasmonic solar cell for aiming to  enhance the solar cell performance.
Textos e imágenes sobre textiles de la dinastía XXII de la tumba UE 1018 en Dra Abu el-Naga
Authors:   Universidad Autónoma de Madrid (España), Borrego Gallardo Francisco L.
Published: March 2021

In 2017 and 2018, the Proyecto Djehuty has documented in a tomb of the early Middle Kingdom at Dra Abu el-Naga the burial of several individuals linked to the priesthood and the Domain of Amun of the Twenty-Second Dynasty. Among the artefacts found there, a group of textiles stands out. A first group includes the name and titles of the owner along with a year of reign. In another, unlike the previous one, only the titles and the identity of their owners are recorded. Thirdly, there are marks and signs of laundry or weaving in some of the pieces of the preceding types and others that only include a similar kind of notation. In addition, among the objects that formed part of the burial goods are two groups of artefacts: shrouds with a large figure of Osiris and texts referring to the deity and its owner and braces with leather ends where a king is offering before a deity. The analysis and preliminary contextualization of this evidence allow for a better understanding of the social profile and funeral practices of the individuals buried in Dra Abu el-Naga in the Third Intermediate Period.
Algunas hipótesis sobre el programa decorativo de las paredes en arenisca del Templo de Millones de Años de Tutmosis III
Authors:   Universidad de Granada (España), Chapon Linda
Published: March 2021

The archaeological excavations undertaken since 2008 in the Henket-ankh, the Temple of Millions of Years of Thutmose III located on the West Bank of Thebes, have resulted in the discovery of a large number of relief fragments, both in sandstone and limestone. While a part of the sanctuary would have been made of limestone, sandstone was used for most decorated walls of the temple. The material is very fragmented, and very little of the original structures of the temple remains. However, its study has allowed us to elaborate hypotheses about some of the scenes that would have been represented, as well as to suggest possible reconstructions. They included, among others, the massacre and list of enemies or battle, a calendar of festivities, processions, the Ished tree or the king outfitted with the Heb Sed robe. These iconographic elements responded to an intentional program in which each type of representation, ritual or other, had its place in specific areas of the temple. These would be combined with scenes of offerings to the gods, in particular to Amun, guarantor at the same time than recipient of the king’s deeds. This paper aims to present an integral vision of what has been determined in terms of these scenes. Given the state of the material, the limitations that we face when it comes to deciphering this figurative discourse are manifest; however, the reliefs discovered in the Henket-ankh evidence the complexity of the decorative and symbolic program, as well as the quality of relief and polychrome, which once existed in the Temple of Millions of Years of Thutmose III
Seis paddle dolls halladas en una tumba del Reino Medio y su patio en Dra Abu el-Naga
Authors:   Kagawa University (Japón), García Fernández Gudelia
Published: March 2021

"During the 2017 and 2018 campaigns at Dra Abu el-Naga, six paddle dolls were discovered by the Spanish archaeological mission inside a Middle Kingdom tomb (EU 1018) and its courtyard, southwest of the entrance to the courtyard of the tomb of Djehuty (TT 11). Although they were found in plundered levels related to ancient grave robbery, they come from a funerary archaeological context in which there is also evidence of the period. Several of these female figurines stand out especially for their iconographic motives, unique examples of this type not documented in other paddle dolls. This study presents an overall assessment of these unpublished female figurines and contributes to our deepening knowledge"
Cerámicas cubiertas de barro: datos de algunas vasijas del Segundo Periodo Intermedio/Reino Nuevo halladas en la tumba QH33 de la necrópolis de Qubbet el-Hawa, Asuán
Authors:   Universidad Autónoma de Madrid (España), López-Grande María J.
Published: March 2021

Archaeological research carried out at Qubbet el-Hawa (Aswan, Egypt), led by Dr Alejandro Jiménez Serrano (University of Jaén, Spain), has brought to light some pottery vessels with abundant remains of mud bonded to their outer surfaces. The thickness of this mud, spread over the whole body of the vases, seems to indicate that these pots were intentionally covered in mud before being placed inside the tomb. All the vessels found with this peculiarity are large jars. Their sizes as well as other details related to their shapes and raw materials suggest that they were intended to transport and/or store offerings. The practice of intentionally covering the entire outer surface of large pottery vessels in mud is not widely attested in pharaonic times. The consulted bibliography offers examples of pots partially covered in mud, mainly restricting the area to the pot’s mouth in order to facilitate its sealing. This article presents the pottery types covered in mud found inside Tomb QH33. It advances some interpretative hypotheses that have been explored in order to gain an understanding of this practice. These are based on some few archaeological parallels as well as on ethnographic and anthropological data. It also presents some proposals on the use of mud in connection with ceramics in Pharaonic Egypt.
El Edificio B de Tell el-Ghaba como un caso de estudio para repensar la dinámica de la unidad doméstica en el Egipto antiguo
Authors:   CONICET  (Argentina), Lupo Silvia , Calomino Eva A. ,   CONICET (Argentina), Scaro Agustina ,   CONICET (Argentina)
Published: March 2021

Tell el-Ghaba, located at the Egyptian Eastern border of the Nile Delta and close to the extinct Pelusiac branch of the Nile, is a settlement dated to the beginning of the Third Intermediate-early Saite periods. The pottery contexts and other finds recovered in Building B (Area I, Level IV) allow us to infer the relationship established between their residents and the domestic artifacts they handled on a daily basis. The idea of ‘multifunctionality’ is applied to the use of residential spaces, based on the presence of domestic contexts that point to the performance of a variety of activities. The activities within the room were intimately linked to internal social factors as well as to the relationship with outdoor space, both planned according to certain social expectations. This building would have been the residence of an extended family for several generations, as evidenced by several refurbishments. The ceramic group has been mainly associated with storage activities, consumption and preparation of food, conservation, and transport of liquid and solid substances. From these activities and the relationship of Building B’s inhabitants with the materiality with which they interacted on a daily basis, the social and economic dynamics that would have been established in this household is analysed.
Elementos arquitectónicos de la capilla funeraria de Sarenput II (QH31) en Qubbet el-Hawa. Caracterización geoquímica
Authors: Martínez Hermoso Juan Antonio , Ayora Cañada María José ,   Universidad de Jaén (España), Domínguez Vidal Ana ,   Universidad de Jaén (España)
Published: March 2021

The chapel of the QH31 funerary complex (Sarenput II) was excavated directly into the rock, like the rest of the hypogea of the necropolis of Qubbet el-Hawa. However, in the chapel there are some outstanding elements that, probably, were elaborated independently of the excavation works in situ, to be located in the planned place as an integral part of the burial equipment, and the general design of the chapel. These elements include, for example, the three pairs of Osiride statues in the corridor, the four pillars in the offering chamber, and the slabs with which they built the sanctuary of the statue of the grave’s owner. As these elements were found coated so as to make their surfaces suitable for decoration, it is very difficult to determine the stone with which they were made. During the last campaign (2018), in situ analysis with non-invasive techniques, such as X-ray Fluorescence, has allowed determining its chemical composition. In addition, some stone fragments found during the excavations carried out since 2008 by the Qubbet el-Hawa project (University of Jaén), have been analyzed, such as the wig of the decapitated statue on the north wall of the corridor, and the fragment belonging to the right jamb of the façade of the sanctuary housing the statue. The results of the analysis seem to indicate that these elements were made from a very similar sandstone to that of the excavation itself and not with silicified sandstone (quartzarenite), which was also very abundant at Qubbet el-Hawa. Besides, these studies show several differences in composition between the stone employed for the construction of the sanctuary, and other elements such as the Osiride statues. Finally, the slab on the floor of the sanctuary, on which the statue of Sarenput was placed, was made of imported limestone.
Tueris-Oxirrinco. La diosa protectora de Per-Medyed
Authors:   Societat Catalana d’Egiptologia (España), Mascort Maite , Pons Esther ,   Museo Arqueológico Nacional (España)
Published: March 2021

"The ancient city of Per-Medyed, located in the 19th nome of Upper Egypt, was called Oxyrhynchus in Greek times. During the GraecoRoman period, the main female divinity of this locality was the goddess Taweret , who was associated with the arrival of the flood and was represented by two fishes, the oxyrhynchus (Mormyridae family), with whom she was linked, and the lepidot. On this site, the oxyrhynchus fish always appears adorned with a Hathor crown, the symbol of feminine divinity, and closely related to the goddess Taweret. Iconographically, it is represented in tombs, temples, cartonnage, stelae, sarcophagi and also in small bronze sculptures, which very often appear arranged on a sledge. Although these statuettes are usually anepigraphic, sometimes they have a demotic inscription on the plinth, on which the sledge rests, which always alludes to the goddessTaweret , for the purpose of protection and rebirth to a new life. The oldest attestations we have of the cult of this oxyrhynchus fish in Oxyrhynchus, comes from classical authors such as Strabo, Herodotus or Plutarch. The papyri found on the site mention the existence of one main temple as well as a secondary temple dedicated to Taweret, and another one, dedicated to the oxyrhynchus, and they even refer to a congregation of priests who fulfilled the specific rituals of this cult."
Restauración y conservación de un conjunto de estelas de falsa puerta hallado en Heracleópolis Magna (Ehnasya el-Medina. Beni Suef)
Authors: Moreno María Antonia
Published: March 2021

An important set of false door stelae with polychrome and hieroglyphic inscriptions have been found, throughout several excavation campaigns, in the necropolis of the First Intermediate Period/Early Middle Kingdom at Herakleopolis Magna. A part of this set is preserved in the National Archaeological Museum (Madrid), while other stelae are stored in the Cairo Museum and in the warehouses of the Ministry of Antiquities located at Ehnasya el-Medina. The conservation and restoration of these objects was undertaken following the criteria recommended by national and international regulations and institutions. The works have been carried out in the National Archaeological Museum and the workshop of the Spanish Archaeological Mission in Ehnasya el-Medina. The stelae presented a heterogeneous and different state of conservation; while some were complete, others were in a fragmentary state. With the purpose of returning the stelae to their original morphology and identity, the treatments applied have essentially consisted of: cleaning, consolidation, material reintegration and volumetric recovery. After restoration, new interesting aspects about the necropolis and the people buried there have come to light.
El templo de Heryshef en Heracleópolis Magna (Ihnasya el-Medina). Trabajos en 2018
Authors:   Museo Arqueológico Nacional (España), Pérez-Díe M. Carmen , Gómez Laguna Antonio
Published: March 2021

The article describes the latest works conducted in the temple of Heryshef during 2018 as a continuation of the tasks started in previous seasons. The places excavated include: the entrance to the temple, the pylon, and the peristyle court on its eastern side, places that Petrie and Naville could not reach. It has been possible to reach deeper levels, which are more ancient than the temple floor, through the dewatering project set in motion by the Antiquities Service at Beni Suef. Applying new methodology and techniques, these excavations helped us reach our main goals: establish the building sequence of the temple, solve the chronological succession of the building phases, and find new architectural elements. Through the location of intact and unaltered fillings, it has been possible to analyse complete sequences. Excavating the fillings by real stratigraphic units, with the purpose of isolating the archaeological materials that they contain, enables us to date the beginning of, and refurbishments executed, in the building
Azathioprine weekly pulse versus methotrexate for the treatment of chronic plaque psoriasis: A randomized controlled trial
Authors: Verma Kaushal K. , Kumar Pramod , Bhari Neetu , Gupta Somesh , Kalaivani M.
Published: March 2021

Background:

Methotrexate is the most commonly used drug in the treatment of psoriasis with good efficacy and safety. Recently, weekly azathioprine pulse has been shown to be effective in this disease.

Aim:

The aim of this study is to compare the effectiveness and safety of weekly pulse doses of azathioprine and methotrexate for the treatment of chronic plaque psoriasis.

Methods:

In this randomized controlled trial, 80 patients with chronic plaque psoriasis were recruited. After detailed clinical and laboratory evaluation, patients were randomized to 2 groups to receive either weekly 300 mg azathioprine (n = 40) or 15 mg methotrexate every week (n = 40) for 20 weeks, following which the response to treatment and adverse effects were assessed. The patients were then followed up every 4 weeks for 3 months to determine any relapse.

Results:

Overall, 48 (60%) patients achieved PASI 75, while 36 (45%) and 59 (73.8%) patients achieved PASI 100 and 50, respectively. On intention to treat analysis, PASI ≥ 75 was achieved in 47.5% (19/40) patients in group 1 compared to 85% (34/40) patients in group 2 (p < 0.001). However, on per protocol analysis, PASI ≥ 75 was achieved in 86% (19/22) patients in group 1 and 92% (34/37) patients in group 2 (p = 0.497). Minor clinical and biochemical adverse effects were noted in both the groups, which were comparable. One (7.7%) patient in group 1 and 4 (17.4%) in group 2 relapsed during follow-up.

Limitations:

Limitation of study include small sample size and short follow-up.

Conclusion:

Weekly azathioprine pulse appears to be beneficial in the management of chronic plaque psoriasis. However, it is less effective than weekly methotrexate. It can thus be of use as a therapeutic option in patients with contraindication to methotrexate or other similar agents in this disease.
Functional Significance of miRNA-149 in Lung Cancer: Can it be Utilized as a Potential Biomarker or a Therapeutic Target?
Authors:   Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, USA, SJ Chauhan , A Thyagarajan ,   Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, USA, RP Sahu ,   Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, USA
Published: March 2021

Accumulating evidence has documented the significance of miR-149 as a promising tumor-suppressive non-coding RNA that plays critical roles in regulating genes involved in cancer growth and metastasis. Notably, the ability of miR-149 to be utilized as a potential biomarker in the diagnosis/prognosis or a therapeutic target has also been explored using various cellular and preclinical models, as well as in clinical settings of lung cancer. While the applicability of miR-149 in assessing tumor progression has been suggested, its potential in predicting treatment outcomes is needed to be verified in diverse settings of lung cancer patients. The current review presents an overview of the functional significance of miR-149 with ongoing challenges in non-small cell lung cancer.
Quantitative Structure–property Relationship Modelling for the Prediction of Singlet Oxygen Generation by Heavy-Atom-Free BODIPY Photosensitizers
Authors: Buglak Andrey A. , Charisiadis Asterios , Sheehan Aimee , Kingsbury Christopher J. , Senge Mathias O.. , Filatov Mikhail A.
Published: March 2021

Heavy-atom-free sensitizers forming long-living triplet excited states via the spin-orbit charge transfer intersystem crossing (SOCT-ISC) process have recently attracted attention due to their potential to replace costly transition metal complexes in photonic applications. The efficiency of SOCT-ISC in BODIPY donor-acceptor dyads, so far the most thoroughly investigated class of such sensitizers, can be finely tuned by structural modification. However, predicting the triplet state yields and reactive oxygen species (ROS) generation quantum yields for such compounds in a particular solvent is still very challenging due to a lack of established quantitative structure-property relationship (QSPR) models. Herein, we analyzed the available data on singlet oxygen generation quantum yields (F?) for a dataset containing > 70 heavy-atom-free BODIPY in three different solvents (toluene, acetonitrile, and tetrahydrofuran). In order to build reliable QSPR model, we synthesized a series of new BODIPYs containing different electron donating aryl groups in the meso position, studied their optical and structural properties along with the solvent dependence of singlet oxygen generation, which confirmed the formation of triplet states via the SOCT-ISC mechanism. For the combined dataset of BODIPY structures, a total of more than 5000 quantum-chemical descriptors was calculated including quantum-chemical descriptors using Density Functional Theory (DFT), namely M06-2X functional. QSPR models predicting F? values were developed using multiple linear regression (MLR), which perform significantly better than other machine learning methods and show sufficient statistical parameters (R = 0.88 ? 0.91 and q2 = 0.62 ? 0.69) for all three solvents. A small root mean squared error of 8.2% was obtained for F? values predicted using MLR model in toluene. As a result, we proved that QSPR and machine learning techniques can be useful for predicting F? values in different media and virtual screening of new heavy-atom-free BODIPYs with improved photosensitizing ability.
Covalent Chemistry on a Van Der Waals Heterostructure
Authors: Villalva Julia , Moreno Sara , Villa Palmira , González Luisa R. , Navío Cristina , García-Orrit Saül , Vega-Mayoral Víctor , Cabanillas-Gonzalez Juan , Castellanos-Gomez Andres , Giovanelli Emerson , Pérez Emilio
Published: March 2021

The building of van der Waals heterostructures and the decoration of 2D materials with organic molecules share a common goal: to obtain ultrathin materials with tailored properties. Performing controlled chemistry on van der Waals heterostructures would add an extra level of complexity, providing a pathway towards 2D‑2D-0D mixed-dimensional heterostructures. Here we show that thiol-ene-like “click” chemistry can be used to decorate franckeite, a naturally occurring van der Waals heterostructure with maleimide reagents. ATR-IR and NMR analyses corroborate the Michael addition mechanism via the formation of a S–C covalent bond, while Raman and HR-TEM show that the SnS2-PbS alternating structure of franckeite is preserved, and suggest that SnS2 reacts preferentially, which is confirmed through XPS. We illustrate how this methodology can be used to add functional molecular moieties by decorating franckeite with porphyrins. UV-vis-NIR spectroscopy confirms that the chromophore ground state remains operative, showing negligible ground-state interactions with the franckeite. Excited-state interactions across the hybrid interface are revealed. Time-resolved photoluminescence confirms the presence of excited-state de-activation in the linked porphyrin ascribed to energy transfer to the franckeite.
Investigating the toxicity of the leaf extracts of lotus
Authors: Deepa N  , Madhivadhani K  , Gowtham S  , Vignesh K  , Divya S
Published: March 2021

Lotus croniculatus belongs to Fabaceae family and grows in the temperate regions and grasslands of the countries of Africa and America. The plant is commonly known as common bird’s foot tree foil. The plant is a herb and appears to be clover plant. The flowers of the plant are used mainly to induce sleep and other effects that regard to brain and heart. The plant is used to reduce spasms in the digestive tract. The infusions that are diluted to certain extent are helpful to reduce the anxiety and insomnia and also to treat exhaustion. Inspite of the possession of lot of pharmacological activities, the plant is to be studied in a detailed manner for the toxicity also. Medicinal plants are known to cause low adverse effects and high potency. In the present investigation, the acute and chronic toxicity levels of the plant Lotus croniculatus extract of leaves was studied in laboratory animals. It is indicated that the animals did not show any change in behavior in acute toxicity and no mortality too. The extract also showed no signs of toxicity and change of values in the blood cells, liver enzymes and also kidney function tests were also normal at the dose of 2g/kg which denotes the safety of the plant in rats.
On Two Properties of Shunkov Group
Authors:   Siberian Federal University, Shlepkin А. А. , Sabodakh I. V. ,   Siberian Federal University
Published: March 2021

One of the interesting classes of mixed groups ( i.e. groups that can contain both elements of finite order and elements of infinite order) is the class of Shunkov groups. The group $G$ is called Shunkov group if for any finite subgroup $H$ of $G$ in the quotient group $N_G(H)/H$, any two conjugate elements of prime order generate a finite group. When studying the Shunkov group $G$, a situation often arises when it is necessary to move to the quotient group of the group $G$ by some of its normal subgroup $N$. In which cases is the resulting quotient group $G/N$ again a Shunkov group? The paper gives a positive answer to this question, provided that the normal subgroup $N$ is locally finite and the orders of elements of the subgroup $N$ are mutually simple with the orders of elements of the quotient group $G/N$. Let $ \mathfrak{X}$ be a set of groups. A group $G$ is saturated with groups from the set $ \mathfrak{X}$ if any finite subgroup of $G$ is contained in a subgroup of $ G$ that is isomorphic to some group of $\mathfrak{X}$ . If all elements of finite orders from the group $G$ are contained in a periodic subgroup of the group $G$, then it is called the periodic part of the group $G$ and is denoted by $T(G)$. It is proved that the Shunkov group saturated with finite linear and unitary groups of degree 3 over finite fields has a periodic part that is isomorphic to either a linear or unitary group of degree 3 on a suitable locally finite field. \end{abstracte}
An Optimal Control Problem by a Hyperbolic System with Boundary Delay
Authors:   Irkutsk State University, Arguchintsev A. V. , Poplevko V.P. ,   Irkutsk State University
Published: March 2021

The paper deals with an optimal control problem by a system of semilinear hyperbolic equations with boundary differential conditions with delay. This problem is considered for smooth controls. Because this requirement it is impossible to prove optimality conditions of Pontryagin maximum principle type and classic optimality conditions of gradient type. Problems of this kind arise when modeling the dynamics of non-interacting age-structured populations. Independent variables in this case are the age of the individuals and the time during which the process is considered. The functions of the process state describe the age-related population density. The goal of the control problem may be to achieve the specified population densities at the end of the process.The problem of identifying the functional parameters of models can also be considered as the optimal control problem with a quadratic cost functional. For the problem we obtain a non-classic necessary optimality condition which is based on using a special control variation that provides smoothness of controls. An iterative method for improving admissible controls is developed. An illustrative example demonstrates the effectiveness of the proposed approach.
Construction of Stability Regions in the Parameter Space in a Penning Trap with a Rotating Electric Field
Authors:   Saint-Petersburg State University, Ovsyannikov A.D. , Shlokova A.I. ,   Saint-Petersburg State University, Komarova A.A. ,   Saint-Petersburg State University
Published: March 2021

The dynamics of particles in a Penning trap with a rotating dipole electric field and a buffer gas is considered. A transition is made to a coordinate system that rotates together with the electric field, which makes it possible to reduce the system of ordinary differential equations with periodic coefficients to a linear differential system with a constant matrix. Using one of the modifications of the Hurwitz stability criterionthe Lienard-Chipart criterion, the stability analysis (according to Lyapunov) of particle motions in the trap is carried out and the stability regions in the trap parameter space are found.Calculations were carried out for a trap with “typical” main parameters. The biggest degree of stability was obtained at frequencies of rotation of the field close to “resonant”. Small relative deviations from these frequencies led to a significant decrease in the degree of stability and loss of stability at “small” values of the amplitude of the rotating field. At the same time, it was possible to partially compensate this by increasing the amplitude of the rotating field, but only to certain limits, after which stability was again lost.
Complete Riemann Solvers for the Hyperbolic GPR Model of Continuum Mechanics
Authors:   Mongolian University of Science and Technology, Ariunaa U. , Dumbser M. ,   University of Trento, Sarantuya Ts. ,   Mongolian University of Science and Technology
Published: March 2021

In this paper, complete Riemann solver of Osher-Solomon and the HLLEM Riemann solver for unified first order hyperbolic formulation of continuum mechanics, which describes both of fluid and solid dynamics, are presented. This is the first time that these types of Riemann solvers are applied to such a complex system of governing equations as the GPR model of continuum mechanics. The first order hyperbolic formulation of continuum mechanics recently proposed by Godunov S. K., Peshkov I. M. and Romenski E. I., further denoted as GPR model includes a hyperbolic formulation of heat conduction and an overdetermined system of PDE. Path-conservative schemes are essential in order to give a sense to the non-conservative terms in the weak solution framework since governing PDE system contains non-conservative products, too. New Riemann solvers are implemented and tested successfully, which means it certainly acts better than standard local Lax-Friedrichs-type or Rusanov-type Riemann solvers. Two simple computational examples are presented, but the obtained computational results clearly show that the complete Riemann solvers are less dissipative than the simple Rusanov method that was employed in previous work on the GPR model.
МОДЕЛЬ ГОМОГЕНІЗАЦІЇ РІЗНОМОДУЛЬНОГО ТРАНСТРОПНОГО ВОЛОКНИСТОГО КОМПОЗИТУ
Authors: Grebenyuk S. M. , Smoliankova Т. M. , Klymenko M. I.
Published: March 2021

У роботі виконано задання з визначення таких ефективних механічних сталих, як поперечний модуль пружності та коефіцієнт Пуассона у площині ізотропії транстропного композиту. Розглянуто волокнистий односпрямований композит, що складається з ізотропних пружних матриці та волокна. Припускається, що під час розтягування та стискання механічні властивості компонентів відрізняються між собою, тобто матеріали матриці та волокна є різномодульними. Для моделювання властивостей композитного матеріалу використовується його елементарна комірка. Вона є нескінченним циліндром. Він складається із суцільного циліндра, що моделює волокно, вкладеного в порожнинний циліндр, що моделює матрицю. На межі контакту матриці та волокна відносний кут закручування вважаємо неперервним. Матеріал композиту моделюється суцільним однорідним трансверсально-ізотропним різномодульним матеріалом. Його площина ізотропії перпендикулярна осі волокна. Для визначення ефективного поперечного модуля зсуву композиту розв’я- зується завдання кручення циліндричної елементарної комірки під дією прикладеного до неї сталого крутного моменту. Ненульовим складником напружено-деформованого стану комірки композиту є дотичне напруження, що діє у площині ізотропії. Визначається відносний кут закручування для матриці та волокна. Аналогічне завдання розв’язане для однорідної трансверсально-ізотропної циліндричної комірки, що моделює композит. Модуль зсуву визначається з кінематичної умови узгодження відносного кута закручування на зовнішній поверхні матриці та значення цього кута на зовнішній поверхні представницької комірки однорідного композиту. Знай- дений поперечний модуль зсуву було застосовано для визначення таких ефективних сталих, як поперечний модуль пружності та коефіцієнт Пуас- сона у площині ізотропії композиту. Ці співвідношення отримано у вигляді функцій механічних характеристик матриці та волокна, а також об’ємної частки волокна в матеріалі композиту. Визначені у роботі ефективні пружні сталі можна використовувати для розрахунку напружено-деформованого стану елементів конструкцій, виготовлених із композитів.
ПРО УТОЧНЕННЯ УМОВ СТІЙКОСТІ КОЛИВАНЬ ПРЯМОКУТНОЇ ПЛАСТИНИ, ЯКА ПОДІЛЯЄ ДВОШАРОВУ ІДЕАЛЬНУ РІДИНУ З ВІЛЬНОЮ ПОВЕРХНЕЮ
Authors: Lymar О. O.
Published: March 2021

У лінійній постановці отримано і досліджено частотне рівняння власних коливань пластини, яка горизонтально розділяє двошарову ідеальну рідину з вільною поверхнею в прямокутному каналі. Контури пластини можуть мати довільні закріплення. Спільні коливання пружної пластини і двошарової рідини з вільною поверхнею моделюються з допомогою системи інтегро-диференціальних рівнянь. Для затиснених контурів пластини отримано єдину форму частотного рівняння як для симетричних, так і несиметричних спільних коливань пластини і рідини. Розглянуто граничні випадки виродження пластини в мембрану та її відсутність. Показано, що при глибині верхньої рідини більшої ширини каналу впливом вільної поверхні на частотний спектр можна нехтувати. Уточнено умови стійкості спільних коливань пластини і рідини з вільною поверхнею для таких трьох випадків, як відсутність розтягувальних зусиль у пластині, виродження пластини в мембрану і випадок рідин з однаковою щільністю за умов дії на пластину стискальних зусиль. Показано, що в першому випадку наближені значення умов стійкості занижено для несиметричних частот у 1,050 разів, а для симетричних – у 1,075 разів. У випадку мембрани наближені значення занижено для несиметричних частот у 1,251 раз, а для симетричних – у 1,222 рази. У третьому випадку наближені значення занижено для несиметричних частот у 1,002 рази, а для симетричних – у 1,010 разів. Таким чином, для пластини наближені значення умов стійкості з достатньою для практики точністю збігаються з точними, а у разі мембрани для наближених обчислень слід ураховувати більше двох членів ряду. На підставі проведених досліджень і результатів попередніх робіт можна стверджувати, що наближені й точні умови стійкості спільних коливань пластини і двошарової рідини не залежать від наявності вільної поверхні, її відсутності і навіть від наявності пружної пластини на вільній поверхні верхньої рідини.
Effect of Feeding Oak (quercus Aegilops) Acorns on Nutrient Digestibility, Nitrogen Balance, Ruminal Fluid Characteristics And Some Blood Metabolites in Sheep And Goats
Authors: M. Hidayet Hoger , N. Mustafa Kamal
Published: March 2021

This study aimed to examine the response of sheep and goats to dietary effects of feeding different levels of oak (Quercus aegilops) acorns in terms of nutrient digestibility, nitrogen balance, rumen function and some serum metabolites. The study was conducted over 4 periods each of 15 days; in each period, rams and bucks were allocated to one of the dietary treatments (control, 5, 10 and 15% oak acorns). Rams and bucks exhibited different responses to the effects of dietary levels of oak acorns. The digestibility coefficient of DM was reduced in both rams and bucks upon feeding acorns, but this decline was significant (P≤0.05) only in rams fed 10 and 15% acorns as compared to rams fed control. Also, the rams and bucks showed numerical decrease in digestibility coefficients of OM, CP, CF, and NPN. The experimental treatments had no effects on nitrogen balance parameters. Bucks exhibited significantly (P≤0.05) higher concentrations of rumen ammonia-nitrogen before, 4 hours and 6 hours after morning feeding. The rumen pH value was significantly (P≤0.05) by the animal species only at the time before morning feeding. The serum metabolites were not affected by the level of acorns in the diet. The results of this study indicate that goats are superior in digesting diets containing oak acorns up to 15%.
Europe as the "other" of Russian historiosophical consciousness: from the middle ages to modernity
Authors: Semikopov D. V. , Zakhriapin A. A.
Published: March 2021

Introduction. The paper reviews the phenomenon of perception of Western Europe as the "other" in Russian intellectual tradition. The purpose of this survey is to analyze and identify the features of Russian historiosophical consciousness in the transition of Russian civilization from the middle ages to modernity in the context of the idea of perceiving Europe as the "other".

Materials and Methods. The main material of the paper is a monograph by Nizhny Novgorod researches «The problem of correlation of panhuman and national in the history of Russian thought». In addition, the material of the research is the works and articles by Russians and foreign authors focus on the subject under consideration. The article used the following methods: historical-philosophical analysis, interpretation, comparison and generalization.

Results. In the medieval period the main consolidating power of society was religion, which identified the «other» as the Catholic of Western Europe. During the reign of Emperor Nicholas I, the «other» is still the same West, but the revolutionary West with its slogan «Liberty, equality, fraternity». The minister of national education – the earl S.S. Uvarov, in turn, proposed the following triad – «Orthodoxy, autocracy, nationality». Formation of the Russian nationality was under intense pressure from the West (the «other» of Russian civilization) during this period. The split of the Russian Orthodox Church (Raskol) in XVII century led to destruction of the Orthodox unity. The Orthodoxy was the source of sacralisation of monarchial power. However, the autocracy, having dealt a blow tothe Orthodoxy, set a course for the Western absolutism. Certain social circles, keeping up old traditions of the Orthodoxy, perceived the political authority as the «other». This led not only to the religion split (Orthodoxy), but also to the split in nationality. A pro-Western elite is being formed and, having lost its connection with Orthodoxy and traditional folk culture, it finds itself in the desert of its own historical identity. As a result, historiosophical projects, created by government and intelligentsia, caused an additional split, being unable to restore the lost unity.

Discussion and Conclusions. The authors of the research managed to make systematic and detailed historical-philosophical analysis of sources and literature on this topic. The paper presents the main concepts that explain the phenomenon of Russian national identity. This makes it possible to consider and evaluate the key ideas of Russian thinkers. As a result, the authors of the research managed to make comprehensive and systematic historical-philosophical analysis of the development of the idea of Russian national identity through the prism of the concept of perception of Western Europe as the «other» of Russia.
Factors Associated with Breast Cancer in Women of Reproductive Age at Dr. Pirngadi Hospital, Medan, North Sumatera
Authors:   Masters Program in Public Health, Universitas Sumatera Utara, Sari Mila Trisna , Sarumpaet Sorimuda ,   Masters Program in Public Health, Universitas Sumatera Utara, Siregar Fazidah Aguslina ,   Masters Program in Public Health, Universitas Sumatera Utara
Published: March 2021

Background: Breast cancer has the highest prevalence in Indonesia. The objective of the research was to analyze the risk factors which influenced the incidence of breast cancer in women of reproductive age. Subjects and Method: This was a casecontrol study conducted at Dr. Pirngadi Hospital, North Sumatera. The population was all 15-49 year-old breast cancer women. Sample of 42 women of reproductive age with breast cancer and 42 women without breast cancer was selected for this study. The dependent variable was breast cancer. The independent variables were family history of breast cancer, menarche, history of breastfeeding, and history of fibrocystic disease. The data were collected by questionnaire and medical record. The data were analyzed by a multiple logistic regression. Results: History of family with breast cancer (OR= 4.93; 95% CI=1.33 to 18.28), age of menstruation (OR= 8.46; 95% CI=2.34 to 30.64), history of breastfeeding (OR= 8.46; 95% CI= 2.19 to 32.70), and history of fibrocystic disease (OR= 7.12; 95% CI=1.99 to 25.48) were associated with breast cancer. Conclusion: History of family with breast cancer, age of menstruation, history of breastfeeding, and history of fibrocystic disease are associated with breast cancer. Keywords: breast cancer, history of breastfeeding, women of reproductive age Correspondence: Mila Trisna Sari. Masters Program in Public Health, Universitas Sumatera Utara. Email: milatrisnasari@gmail.com. Mobile: 08192100- 173.
The Effect of Active Smoking of Pregnant Women on Premature Birth: A Meta Analysis
Authors:   Masters Program in Public Health, Universitas Sebelas Maret, Arifian Imam Setya , Widyaningsih Vitri ,   Faculty of Medicine, Universitas Sebelas Maret, Prasetya Hanung ,   Study Program in Acupuncture, Health Polytechnics, Ministry of Health Surakarta
Published: March 2021

Background: Smoking is a well-known major risk factor for premature death from cancer, cardiovascular disease, and chronic obstructive pulmonary disease. When a pregnant woman smokes, she puts herself and her baby at risk. This is because the developing fetus / baby in the mother's womb is in contact with the mother's bloodstream. Any chemical that the mother inhales or swallows can affect the fetus. This study aims to analyze the magnitude of the effect of active smoking on pregnant women with preterm labor by means of a meta-analysis study. Subjects and Method: This was a systematic review and meta-analysis carried out by following the PRISMA flow diagram. The process of searching for articles is through a journal database which includes: PubMed, Springer Link, and Google Scholar by selecting articles published in 2005-2020. Keywords used include: "Maternal Smoking" OR "Smoking During Pregnancy" AND "Preterm Birth" OR "Premature" AND "multivariate" AND "AOR". The inclusion criteria were full paper articles with observational study design, articles in English, and multivariate analysis used with adjusted odds ratios. Articles that meet the requirements are analyzed using the Revmen 5.3 application. Results: A total of 19 articles were reviewed in this study with a cross-sectional cohordant study design. A meta-analysis of 6 cohort studies showed that active smoking in pregnant women had a 1.34-fold increase in the incidence of preterm birth compared with nonsmoking pregnant women (aOR= 1.34; 95% CI= 0.14 to 5.80; p= 0.002). A meta-analysis of 5 cross-sectional studies showed that active smoking in pregnant women had a 1.29-fold increase in the incidence of preterm birth compared with nonsmoking pregnant women (aOR= 1.29; 95% CI= 0.89 to 4.54; p= 0.04). Conclusion: Active smoking in pregnant women increases preterm labor. Keywords: pregnant women smoking, premature labor, meta-analysis Correspondence: Imam Setya Arifian. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta 57126, Central Java. Email: Imamsetyaarifian@gmail.com. Mobile: 085253402793.
PLTS 200 Wp to Meet Energy Needs at the Taqwa Muhammadiyah Mosque, Sei Litur Village, Sawit Sebrang Langkat District
Authors: Harahap Partaonan , Nofri Irfan , Lubis Sudirman
Published: March 2021

At the Taqwa Muhammadiyah Mosque, a local place of worship, the power blackout is becoming very troublesome. On one side of the village where the research was conducted, the light intensity was high enough so that it is very good to be used as a source of renewable energy, namely solar panels or better known as PLTS. Method used in this research is experiment which is fully functional to control the implementation of the solar panel for electricity supply for the Mosque everyday activity Based on the results of measurements and calculations, the 200 Wp solar panel, when the weather is sunny, will be able to charge a battery by 68.2% or 87.2 Watts. In using the battery, the efficiency factor of the battery must be considered because it cannot be operated until all power is used up. Battery Capacity is 754.7 Ah and is able to supply DC lamps for 1 day and is able to supply AC loads for 1.02 day. So in 11 hours (lowest data) the 200WP solar panel is able to charge a battery with a capacity of 100Ah at 80% of the full battery capacity.

Keywords: generator; PLTS; solar cell
The Understanding of Romance in Audiences of 50 Shades of Grey
Authors: Inzunza-Acedo Beatriz Elena
Published: March 2021

El éxito en taquilla de la primera película de la saga de 50 Sombras de Grey, fue un tema controversial en México debido a que expuso la sexualidad femenina desde una perspectiva liberal, en una sociedad considerada altamente conservadora por su influencia Católica. Este estudio presenta los resultados de 587 encuestas y cinco grupos de enfoque, cuyo objetivo fue el de conocer las representaciones sociales del romance en las audiencias regiomontanas, y su relación con lo que se presenta en la película. Los principales hallazgos arrojan que los participantes se identifican en su mayoría con los personajes (Christian Grey y Anastasia Steele), debido a que representan las características más deseables para una relación romántica.
El cine en Tampico y Ciudad Madero: exhibición, programación y contexto histórico-social en 1942
Authors: Nieto Malpica Jorge , Tello Iturbe Alfonso , ROSAS RODRÍGUEZ MARIA EUGENIA , Biltereyst Daniel
Published: March 2021

Este trabajo presenta un análisis de los resultados correspondientes a la exhibición de películas del año 1942, como parte del proyecto de investigación en curso, vinculando aspectos como el impacto de la industria cultural cinematográfica en los municipios de Tampico y Ciudad Madero, Tamaulipas, México, inspirado en la perspectiva teórica de la Nueva Historia del Cine (New Cinema History), la oferta de películas en las salas de cine locales, así como su íntima relación con el contexto histórico y social. Los resultados muestran la oferta de películas en 12 cines, se identifican algunos patrones y cambios posteriores en los contenidos disponibles para la comunidad como parte de la dinámica en las condiciones socioeconómicas de la población. El proyecto replica un estudio similar realizado en Flandes, Bélgica por Daniel Biltereyst (Universidad de Gante) y Philippe Meers (Universidad de Amberes).