bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Branding Haka Dimsum Melalui Komunikasi Visual
Authors: Pangestu Hokky Putra , Sari Wulan Purnama
Published: March 2021

Digital era is a phenomenon that happening in the present and digital era is a technological advancement that is used by everyone. Haka Dimsum in conducting promotions in the digital era is the most important activity. The goal promotional activities carried out by Haka Dimsum is to trigger branding, it serves to provide an identity that has a characteristic of the product. To do the branding, Haka Dimsum creates contents in the form of photos and videos. Contents presented to the public, the contents have a role to convey the message by visual communication. This can be helped by using social media, especially Instagram because there are many users. This research discusses about, how to do branding analysis by Haka Dimsum with visual communication.This research method is done by way of case studies theory, which means learning more about a process in this research. This research aims to determine and describe the branding analysis conducted by Haka Dimsum through visual communication. The results of this research, can be seen with the interesting content like to tell a story and entertaining, can make audiences interested with the sales of product and interesting content is the most important part to do selling activity. Era digital adalah fenomena yang terjadi pada masa kini.  Era ini merupakan kemajuan teknologi yang dimanfaatkan oleh semua orang. Haka Dimsum dalam melakukan promosi di era digital merupakan kegiatan terpenting. Kegiatan promosi yang dilakukan Haka Dimsum mempunyai tujuan untuk branding, hal tersebut berfungsi untuk memberikan identitas agar mempunyai ciri khas terhadap produk. Untuk melakukan branding Haka Dimsum membuat konten berupa foto dan video, konten yang disajikan kepada khalayak mempunyai peran untuk menyampaikan pesan yaitu dengan cara komunikasi visual. Hal tersebut dapat dibantu dengan menggunakan media sosial terutama Instagram karena penggunanya banyak. Penelitian ini mempunyai tujuan untuk mengetahui dan menggambarkan analisis branding yang dilakukan Haka Dimsum melalui komunikasi visual. Metode penelitian ini dilakukan dengan cara studi kasus yang berarti mempelajari lebih lanjut tentang suatu proses dalam penelitian ini. Penelitian ini dilakukan agar mengetahui dan menggambarkan branding Haka Dimsum melalui komunikasi visual. Hasil penelitian ini dapat diketahui bahwa dengan konten yang menceritakan dan menghibur dapat membuat khalayak tertarik dengan produk yang dijual dan betapa pentingnya ketika menjual produk dengan menggunakan ide konten yang menarik.
Pengaruh Kredibilitas Public Figure terhadap Keputusan Pembelian (Survei Penggunaan Brand Ambassador Chelsea Islan dalam Kampanye Pink Voice Starbucks)
Authors: Setiawan Rudy , Candraningrum Diah Ayu
Published: March 2021

The credibility of a public figure is one of the influences for the public to consider purchasing decisions for the product. There are two common attributes possessed by a communicator, namely credibility and attractiveness, where both of these attributes contribute to the effectiveness of a public figure. It aims to examine the credibility of public figures on purchasing decisions of consumers who have purchased Pink Voice products at Starbucks Hayam Wuruk Plaza. The independent variable in this study is public figure credibility and the dependent variable is purchasing decisions. This type of research is quantitative descriptive. The research data collected uses non probability sampling and purposive sampling techniques. This study uses SPSS for Windows 15 test for Validity, Reliability, Hypothesis (simple linear analysis), T-test, Correlation Coefficient, and Determination Coefficient. Researchers obtained data by distributing questionnaires to 110 respondents who had been determined and in accordance with the research requirements and represented the population. The results of research conducted by researchers that the communicator's credibility affects as much as 32.1% in purchasing decisions if the quality of the communicator's credibility is improved then the purchasing decision will also increase. The results of this study indicate that communicator credibility influences purchasing decisions.Kredibilitas dari seorang public figure merupakan salah satu pengaruh bagi masyarakat untuk mempertimbangkan keputusan pembelian terhadap produk tersebut. Terdapat dua atribut umum yang dimiliki oleh seorang komunikator yaitu kredibilitas (credibility) dan daya tarik (attractiveness), dimana kedua atribut ini berkontribusi terhadap efektivitas seorang public figure. Penelitian ini bertujuan untuk mengetahui kredibilitas public figure terhadap keputusan pembelian konsumen yang pernah membeli produk Pink Voice di Starbucks Hayam Wuruk Plaza.Variabel independen dalam penelitian ini adalah kredibilitas public figure dan variabel dependen adalah keputusan pembelian. Jenis penelitian ini adalah deskriptif kuantitatif. Data penelitian yang dikumpulkan ini menggunakan non probability sampling dan teknik purposive sampling. Penelitian ini menggunakan alat uji SPSS for windows 15 untuk Uji Validitas, Realibilitas, Hipotesis (analisis linier sederhana), Uji T, Koefisien Korelasi, dan Koefisien Determinasi. Peneliti memperoleh data dengan menyebarkan kuesioner kepada 110 responden yang sudah ditentukan dan sesuai dengan syarat penelitian dan mewakili populasi. Hasil penelitian yang dilakukan oleh peneliti bahwa kredibilitas komunikator berpengaruh sebanyak 32,1% pada keputusan pembelian apabila kualitas kredibilitas komunikator ditingkatkan maka keputusan pembelian juga akan meningkat. Hasil penelitian ini menunjukkan bahwa kredibilitas komunikator berpengaruh terhadap keputusan pembelian.
Treponema pallidum tprII subfamily genes internal fragments sequencing
Authors: Plakhova Xenia I. , Chestkov Alexander V. , Abuduev Nazerbek K. , Vasiliev Michael M.
Published: March 2021

Background. The modern system of molecular typing of the Russian population of T. pallidum makes it possible to obtain results with a significant dominance of the 14d/f type, which determines the need to increase the differentiating ability of the applied methods of molecular typing of T. pallidum.
Aim. Identification and analysis of nucleotide sequence variability of internal gene fragments of the tprII family of Russian T. pallidum subsp. pallidum strains.
Material and methods. The study of internal variable fragments of genes of the tprII family was carried out among 240 clinical isolates of T. pallidum obtained from the Central (Kaluga Region, Moscow), North Caucasian (Stavropol Territory), Far East (Republic of Sakha), Volga (Chuvash Republic), Southern (Astrakhan Region) and Siberian (Novosibirsk and Omsk Regions, Republic of Tyva) federal districts in 20142020. The sequence of internal variable fragments of genes of the tprII family was determined using capillary sequencialng technology.
Results. The primers allowing both direct amplification of the internal variable region of the tprII genes subfamily and correct sequencing of their internal regions have been proposed. It was found one SNP at positions 1340 of tprG gene. The polymorphism differs the reference Nichols strain from globally distributed Street 14 genogroup variants.
Conclusion. The variability of tprII subfamily genes nucleotide sequences in modern Russian strains of T. pallidum subsp. pallidum is an additional fund to increase the efficiency of the modern T. pallidum molecular typing system.
Laser keratorefractive surgery. Russian technologies
Authors:   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Doga A.V. , Vartapetov S.K. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Mushkova I.A. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Kostenyov S.V. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Maychuk N.V. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Karimova A.N. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow
Published: March 2021

The monograph is devoted to the history of the creation of ophthalmic lasers and refractive surgery of the cornea in Russia. The physical principle of operation and interaction of femtosecond laser radiation with the cornea and other structures of the human eye is stated. A comparative analysis of the first Russian femtosecond device is presented.
Magic-state distillation with the four-qubit code
Authors: Meier Adam M. , Eastin Bryan , Knill Emanuel
Published: March 2021

The distillation of magic states is an often-cited technique for enabling universal quantum computing once the error probability for a special subset of gates has been made negligible by other means. We present a routine for magic-state distillation that reduces the required overhead for a range of parameters of practical interest. Each iteration of the routine uses a four-qubit error-detecting code to distill the $+1$ eigenstate of the Hadamard gate at a cost of ten input states per two improved output states. Use of this routine in combination with the $15$-to-$1$ distillation routine described by Bravyi and Kitaev allows for further improvements in overhead.
Optimal class-specific witnesses for three-qubit entanglement from Greenberger-Horne-Zeilinger symmetry
Authors: Eltschka Christopher , Siewert Jens
Published: March 2021

Recently, a new type of symmetry for three-qubit quantum states was introduced, the so-called Greenberger-Horne-Zeilinger (GHZ) symmetry. It includes the operations which leave the three-qubit standard GHZ state unchanged. This symmetry is powerful as it yields families of mixed states that are, on the one hand, complex enough from the physics point of view and, on the other hand, simple enough mathematically so that their properties can be characterized analytically. We show that by using the properties of GHZ-symmetric states it is straightforward to derive optimal witnesses for detecting class-specific entanglement in arbitrary three-qubit states.
Measurement-induced nonlocality for an arbitrary bipartite state
Authors: Mirafzali Sayyed Y. , Sargolzahi Iman , Ahanj Ali , Javidan Kurosh , Sarbishaei Mohsen
Published: March 2021

Measurement-induced nonlocality is a measure of nonlocalty introduced by Luo and Fu [Phys. Rev. Lett \textbf{106}, 120401 (2011)]. In this paper, we study the problem of evaluation of Measurement-induced nonlocality (MIN) for an arbitrary $m\times n$ dimensional bipartite density matrix $\rho$ for the case where one of its reduced density matrix, $\rho^{a}$, is degenerate (the nondegenerate case was explained in the preceding reference). Suppose that, in general, $\rho^{a}$ has $d$ degenerate subspaces with dimension $m_{i} (m_{i} \leq m , i=1, 2, ..., d)$. We show that according to the degeneracy of $\rho^{a}$, if we expand $\rho$ in a suitable basis, the evaluation of MIN for an $m\times n$ dimensional state $\rho$, is degraded to finding the MIN in the $m_{i}\times n$ dimensional subspaces of state $\rho$. This method can reduce the calculations in the evaluation of MIN. Moreover, for an arbitrary $m\times n$ state $\rho$ for which $m_{i}\leq 2$, our method leads to the exact value of the MIN. Also, we obtain an upper bound for MIN which can improve the ones introduced in the above mentioned reference. Finally, we explain the evaluation of MIN for $3\times n$ dimensional states in details.
Molecular docking and dynamic simulation of Olea europaea and Curcuma Longa compounds as potential drug agents for targeting Main-Protease of SARS-nCoV2
Authors: Saif Rashid , Raza Muhammad Hassan , Rehman Talha , Zafar Muhammad Osama , Zia Saeeda , Qureshi Abdul Rasheed
Published: March 2021

One of the main reasons of rapidly growing cases of COVID-19 pandemic is the unavailability of approved therapeutic agents. Therefore, it is urgently required to find out the best drug by all means. Aim of the current study is to test the anti-viral drug potential of many of the available olive and turmeric compounds that can be used as potential inhibitors against one of the target proteins of SARS-nCoV2 named Main protease (Mpro/3CLpro). Molecular docking of thirty olive and turmeric compounds with target protein was performed using Molecular Operating Environment (MOE) software, out of these 19 ligands were selected for redocking using PyRx to validate MOE results and to determine the best ligand-protein interaction energies. Molecular dynamics simulation was performed on best 7 docked complexes by NAMD/VMD to determine the stability of the ligand-protein complex. Out of the thirty drug agents, 6 ligands do not follow the Lipinski rule of drug likeliness by violating two or more rules while remaining 24 obey the rules and included for the downstream analysis. We found that Demethyloleoeuropein, Oleuropein, Rutin, Neuzhenide, Luteolin-7-rutinoside, Curcumin and Tetrehydrocurcumin gave best docking score and form much stable complexes during simulation. Our predictions suggest that these ligands have the potential inhibitory effects on Mpro of SARS-nCoV2, so, these herbal plants would be helpful in harnessing COVID-19 infection as home remedy with no serious known side effects. Further, in-vivo experimental studies are needed to validate the inhibitory properties of these compounds against the current and other target proteins in SARS-nCoV2.
Experimental Investigation on Rheological Properties of Water Based Novel Ternary Hybrid Nanofluids
Authors: Zayan Mohammed , Rasheed Abdul Khaliq , John Akbar , Khalid Mohammed , Faris Ahmad
Published: March 2021

This study presents the rheological characterization of deionised water dispersed with two different ternary-hybrid nanoparticles namely, GO-TiO2-Ag and rGO-TiO2-Ag. The stability of 0.05 wt% nanofluid samples are serially diluted by 10 fold in 5 levels is determined using zeta potential measurements. The non-linear viscoelastic measurements at temperatures ranging from 25oC to 50oC reveal that the graphene based ternary hybrid nanoparticle nanofluids exhibit Newtonian behaviour at higher concentrations. However, it displays shear thinning or pseudo-plastic fluid characteristics at lower concentration, suggesting a potential influence of nanoparticle aggregation on the viscosity. The experimental results are found to be in good agreement with the existing water based viscosity models. In addition, the effect due to shear stress, angular sweep, frequency sweep and damping factor ratio is also plotted.
Bioinspired Long-Wavelength Excitable Near-Infrared AIEdots for Endometriosis Targeting and Image-Guided Surgery
Authors: Zhao Huashan , Li Chunbin , Zhu Wen , Yu Ming , Huang Binbin , Wang Xiaopeng , Li Jingwei , Yang Yali , Xue Li , Ni Jen-Shyang , Lei Xiaohua , Ren Pei-Gen , Zhang Pengfei , Wang Jianguo , Zhang Jian V.
Published: March 2021

Endometriosis（EM）is a non-cancerous and intractable disease in clinic due to the ambiguity of its etiology and mechanism. Surgical removal of the lesions is more efficient method for EM treatment compared with pharmacological intervention. Intraoperative identification of the endometrial ectopic sites is a prerequisite, however, available probes with high specificity remain limited, owing to lack of specific biomarkers. Here, based on a polypeptide derived from VAR2CSA protein (CSA) and a near-infrared AIE material (TPA-TBZ-2), we prepared a CSA AIEdots capable of labeling the EM lesions by a one-step nanoprecipitation method. The nanodots have an absorbance maximum at 610 nm with a wide emission range from 650 to 850 nm and an absolute quantum yield of up to 34% in the aggregation states. Through in vitro assay, the dots could specifically label endometrioid cells (Ishikawa cells), and flow cytometry experiments showed its specific spectral absorption peak, compared with empty particles and scrambled peptide groups. Next, to verify the ability of the dots to label the ectopic endometrium in vivo, we established a mouse model of endometriosis. After injection the dots into model mouse intravenously for 24 hours, the AIE signaling could be specifically detected at the ectopic lesions in an IVIS small animal imaging system. The CSA AIEdots were further used for image-guided EM resection in vivo and showed a high EM-to-normal tissue signal ratio. Taken together, our AIE nanodots-based EM diagnosis system is a promising candidate for EM development monitoring and surgical navigations.
Quantitative Estimation of Cyclotide-Induced Bilayer Membrane Disruption by Lipid Extraction with Mesoscopic Simulation
Authors: van den Broek Karina , Epple Matthias , Kersten Lisa Sophie , Kuhn Hubert , Zielesny Achim
Published: March 2021

Cyclotide-induced membrane disruption is studied at the microsecond timescale by Dissipative Particle Dynamics (DPD) to quantitatively estimate a kinetic rate constant for membrane lipid extraction with a “sandwich” interaction model where two bilayer membranes enclose a cyclotide/water compartment. The obtained bioactivity trends for cyclotides Kalata B1, Cycloviolacin O2 and selected mutants with different membrane types are in agreement with experimental findings: For all membranes investigated, Cycloviolacin O2 shows a higher lipid extraction activity than Kalata B1. The presence of cholesterol leads to a decreased cyclotide activity compared to cholesterol-free membranes. Phosphoethanolamine-rich membranes exhibit an increased membrane disruption. A cyclotide’s “hydrophobic patch” surface area is important for its bioactivity. A replacement of or with charged amino acid residues may lead to super-mutants with above-native activity but without simple charge-activity patterns. Cyclotide mixtures show linearly additive bioactivities without significant sub- or over-additive effects.
Chemically Fueled Block Copolymer Self-Assembly into Transient Nanoreactors
Authors: Würbser Michaela A. , Schwarz Patrick , Heckel Jonas , Bergmann Alexander M. , Walther Andreas , Boekhoven Job
Published: March 2021

In chemically fueled supramolecular materials, molecular self-assembly is coupled to a fuel-driven chemical reaction cycle. The fuel-dependence makes the material dynamic and endows it with exciting properties like adaptivity and autonomy. In contrast to the large work on the self-assembly of small molecules, we herein designed a diblock copolymer, which self assembles into transient micelles when coupled to a fuel-driven chemical reaction cycle. Moreover, we used these transient block copolymer micelles to locally increase the concentration of hydrophobic reagents and thereby function as a transient nanoreactor.
Impacts of Organic Sorbates on Ionic Conductivity and Nanostructure of Perfluorinated Sulfonic-Acid Ionomers
Authors: Katzenberg Adlai , Angulo Andrea , Kusoglu Ahmet , Modestino Miguel
Published: March 2021

This study provides insights into structure-property relationships of Nafion membranes swollen with organic sorbates, revealing correlations between sorbate polarity, ionomer domain structure, and ionic conductivity. Swelling, nanostructure, and ionic conductivity of Nafion in the presence of short-chain alcohols and alkanes was studied by infrared spectroscopy, X-ray scattering, and voltammetry. Nafion equilibrated with alkanes exhibited negligible uptake and nanoswelling, while alcohols induced nanoscopic- to macroscopic- swelling ratios that increased with alcohol polarity. In mixed-sorbate environments including organics and water, alcohols preserved the overall ionomer domain structure but altered the matrix to enable higher sorbate uptake. Alkanes did not demonstrably alter the hydrated nanostructure or conductivity. Identifying the impacts of organic sorbates on structure-property relationships in ionomers such as Nafion is imperative as membrane-based electrochemical devices find applications in emerging areas ranging from organic fuel cells to the synthesis of fuels and chemicals.
Crystallised chitosan + Vitamin-E Coated Drug-Eluting Stents to Prevent Restenosis and Stent Associated Infections
Authors: Amrutha M  , Uma C  , Sivagurunathan P  , Dinesh
Published: March 2021

Drug-Eluting Stents (DES) was developed to reduce re-endothelialisation and thrombosis. Chitosan due to its biocompatible and biodegradable property, it is used in drug delivery and wound healing applications. Chitosan-Vitamin E (alpha-tocopherol) coated stents were prepared by seeding and crystallisation process. Drug release profile, anti-bacterial activity and biocompatibility were analysed. FESEM analysis of the coated stent evidenced the homogenous coating of the drug-polymer mixture does not provide any surface space on the stent for the bacterial adhesion. Maximum bacterial reduction percentage was observed for biofilm-producing Staphylococcus aureus (96.6±1.04%). Escherichia coli and Pseudomonas aeruginosa showed bacterial reduction percentage of 93.3±2.51% and 93.6±2.08% respectively. Release profiles of crystalline chitosan from the coated stents indicated that the rate of chitosan release was sustained and constant with the release time. Chitosan coated stent samples showed significant biocompatibility indicated by the cell viability percentage of 96.6±1.04% when compared with the control samples (99.1±0.76%). To conclude, the drug-releasing phenomenon aided by the vitamin was correlated with its ability to prevent the formation of restenosis in atherosclerosis cases.
Study of microstructure geometry and properties of laser beam welded joints made of S960QL structural steel and S304 corrosion-resistant steel
Authors: Śliwiński Piotr , Piotrowski Maciej
Published: March 2021

Contemporary grades of structural steels are produced using a very advanced thermo-mechanical treatment processes, so their properties strongly depend on the obtained structure. Corrosion-resistant austenitic steels have a high hot cracking tendency. Therefore, it is advantageous to use welding technologies, such as laser welding, that limit the size of the joint and its heat-affected zones and thus the deformations caused by the welding process. Laser welding is also characterized by small amount of heat transferred into the material  during the process which limits the hot cracking tendency. During the tests, 8 samples made of S960QL steel and S304 steel, were prepared using a Trumpf TruDisk 3302 laser welding device. The produced samples were subjected to macro- and microscopy metallographic tests. Static tensile test and bend test were also performed as well as a hardness  Vickers test under a load of 100N. Good quality joints were obtained, characterized by a small number of welding imperfections, small size of the weld and heat affected zone, as well as satisfactory mechanical properties.
Scinapse 2020-2021 Undergraduate Science Case Competition: Antimicrobial Resistance: A Global Health Crisis
Authors: Ngo Clarissa , Krnel Rebecca , Mardiros Linda
Published: March 2021

The Scinapse Undergraduate Science Case Competition (USCC) provides an opportunity for undergraduate students to experience the development of a novel research proposal. A case is presented to all participants and, using in-depth literature search (publications, reports, studies and published writings), students connect and pinpoint key elements allowing them to develop a hypothesis in support of the case in question. Participants also develop a methodology which will test the validity of their hypothesis. This year's case topic focused on antimicrobial resistance as a major threat to global health that requires a complex, multifaceted response. In teams of 2-4, undergraduate students tackled the case and provided novel research ideas that may hold the key to combating the global spread of antimicrobial resistance. In total, the 2019-2020 USCC attracted 694 undergraduate students from 19 universities across Canada and the United States. The top 10% of written submissions are highlighted in this abstract booklet.
Designing with Mycelium: Utilising spatial printing to create scaffolds for mycelium growth
Authors:   , Koetsier Elize
Published: March 2021

With increased awareness of the environmental impact of synthetic materials, there has been an increase in research investigating more sustainable manufacturing methods and materials. Making appropriate sustainable material choices for designs is becoming essential, whether it is using more durable or adaptable materials that will last an extended period or integrating sustainable bio-materials into short-term products. In addition, there are a number of research projects that use natural growing systems to produce materials with placement being defined by 3D printing or digitally fabricated moulds. These have been referred to as Hybrid Construction Systems, as both natural and manmade techniques are combined as a fabrication system. This research portfolio investigates the opportunities and constraints of using mycelium-based composites in combination with spatially printed structures to dictate the form, materiality and potential use.

There are a number of recent projects that have focused around the use of mycelium in an architectural context, one being Mycotree which created a load-bearing structure from mycelium composite blocks that were generated through 3D graphic software (Heisel et al., 2017). A common trait of these projects and others, is that the method of making used a process of growing the composite in engineered moulds and later assembled.

Mycelium offers many unique material qualities, it is a naturally occurring resource that can perform as a structurally sound material when used correctly. One benefit of it beyond removing the use of synthetic materials is that it can be composted, when it is no longer needed, which could offer sustainable design alternative for short-term products or for large temporary structures.

This research explored the creation of spatially printed 3D scaffolds and the synergies of materials, methods of growth and manipulation of mycelium based composites. Form, pattern, and structure of 3D printed objects were analysed along with application techniques to identify suitability for mycelium growth. Processes identified as successful were then applied to the design of large scale structures that highlighted the opportunities of the developed method.

The findings in this report provide evidence that spatial printing could offer a scaffold for mycelium composites to grow, defining form and strength, creating an alternative method and unique design opportunities to the traditional use of casting moulds. This research portfolio presents the possibility for innovative manufacturing methods that adopt a collaboration between digitally defined forms and bio-materials, exploiting the freedom and accuracy of digital design while using highly sustainable materials.
Method of obtaining of nonneuronal cultures of astrocytes, derivated from human mesenchymal stem cells
Authors: Gramatiuk S. M. , Іvanova Yu. V. , Hudyma A. A.
Published: March 2021

Objective. Elaboration of method for obtaining of nonneuronal cultures of astrocytes, derivatives from human mesenchymal stem cells of various origin. Materials and methods. Mesenchymal stem cells were obtained from human peripheral and umbilical blood in accordance to standard procedure, using the immune-magnet separation method and distributed into three groups, depending on primary material of origin and the cellular differentiation technique applied: the cells, which were obtained from the umbilical blood and if our modified technique of differentiation (CBMSC) used, and the cells, which were obtained from peripheral blood and the differentiation technique used was standard (PBMSC-1) and modified (PBMSC-2) protocols. As primary antibodies standard sets β- III-Tubulin (Sigma, USA), GFAP, Nestin (Abcam) served, while as secondary antibodies - іmmunoglobulins G, conjugated by activators CNTF, BMP2/4 and FGF1 (Sigma, USA) in accordance to instruction. For visualization of the results obtained microscope EVOS FL LIFE TECHNOLOGIES was used with obtaining of view under ×40 objective. Results. From majority of cells from the PBMSC-1 group the answer was not obtained, while from approximately 80% of all stimulated cells of the PBMSC-2 group the answer was obtained, and the both lines content consisted of 20 - 30% of GFAP-positive cells. This makes background to consider, that expression of GFAP only is insufficient to identify the mature and functional astrocytes. Conclusion. Astrocytes from group PBMSC-1 have had answered very rarely on ATP-stimulation, while astrocytes from groups CBMSC and PBMSC-2 demonstrated characteristic answer. Thus, there was demonstrated, that morphologically close astrocytic lines and single cells owes different functional profile.
Influence of the Hydric State and Lime Treatment on the Thermal Conductivity of a Calcareous Tufa
Authors: Mekaideche K. , Derfouf F-E. M. , Laimeche A. , Abou-Bekr N.
Published: March 2021

An experimental study was conducted to investigate changes of thermal conductivity of a raw and lime-treated calcareous tufa (north-west of Algeria) during drying process. Treated (with 4% of lime) and untreated samples were prepared by static compaction at the Standard Proctor Optimum (SPO), Modified Proctor Optimum (MPO) and at a constant stress level of 4 MPa. Transient Hot Wire (THW) method was used to measure the thermal conductivity and the water content and degree of saturation of samples were determined at various drying times. Results show that the drying process induces a decrease in thermal conductivity. This parameter seems to vary linearly with the water content and the degree of saturation. In addition, it was found that the lime treatment leads also to a decrease in the thermal conductivity. Thus, the drying process and the lime treatment will jointly contribute to the reduction of the thermal conductivity of the studied material in such a way that it is more insulating than some traditional building materials like concrete or fired bricks. Doi: 10.28991/cej-2021-03091663 Full Text: PDF
Experimental and Numerical Studies on Setback Buildings Considering the SSI Effect under Seismic Response
Authors: Thejaswini R. M. , Govindaraju L. , Devaraj V.
Published: March 2021

From the previous studies it is observed that due to the effect of the earthquake, several irregular buildings failed vulnerably. Further the effect of sub soil conditions where these buildings have been founded also play an important role on the seismic response of these buildings. In the past, experimental studies on the seismic response of different setback building configurations have not been carried out. Therefore, in the present study the seismic behaviour of setback buildings considering Soil Structure Interaction (SSI) has been evaluated by conducting experimental and numerical investigations. Buildings with various setback configurations were considered and are designed as pile foundation supported structures. The irregularity index of these building configurations have been determined as per the existing codal provisions. These piles supported buildings representing the prototype structure have been scaled down according to geometric, kinematic and dynamic scaling laws. The scaled building models are subjected to vibrations beyond resonant frequencies using shake table facility. A comparison of the results has been made between experimental and numerical investigations. Based on the study it has been observed that storey displacements of building with regular configurations are higher in comparison with the setback buildings. It is also found that asymmetrical and symmetrical setback buildings having different irregularity indices as per IS:1893-2016 indicate nearly the same displacements at resonant frequencies. Doi: 10.28991/cej-2021-03091664 Full Text: PDF
Pengembangan Instrumen Penilaian Kinerja Peserta Didik Pada Praktikum Larutan Elektrolit dan Nonelektrolit Kelas X SMA di Kecamatan Sambas
Authors: Nurabmi Sri
Published: March 2021

Penelitian ini bertujuan untuk menentukan tingkat kelayakan dan respon guru kimia terhadap instrumen penilaian kinerja peserta didik pada praktikum larutan elektrolit dan non elektrolit yang dikembangkan. Metode penelitian yang digunakan yaitu Penelitian dan pengembangan (R&D) model Borg & Gall. Subjek penelitian ini adalah instrumen penilaian kinerja peserta didik yang diuji cobakan kepada guru kimia di SMA Kecamatan Sambas. Instrumen penilaian kinerja peserta didik pada praktikum larutan elektrolit dan nonelektrolit yang dikembangkan menunjukan kategori sangat layak dengan persentase 87,31% ditinjau dari tiga aspek penilaian yaitu kelayakan isi, penyajian, dan bahasa. Respon guru kimia terhadap instrumen penilaian kinerja peserta didik pada uji lapangan awal menunjukkan kategori sangat baik (80,55%), dan pada uji lapangan utama menunjukkan kategori sangat baik (85,83%). Hasil penelitian ini menunjukan bahwa instrumen penilaian kinerja peserta didik pada praktikum larutan elektrolit dan nonelektrolit sangat layak dan dapat digunakan sebagai salah satu alat penilaian dalam kegiatan praktikum kimia materi larutan elektrolit dan nonelektrolit.
Comparative Study on Results of Euler, Improved Euler and Runge-Kutta Methods for Solving the Engineering Unknown Problems
Authors: Lwin Khaing Khaing
Published: March 2021

The paper presents the comparative study on numerical methods of Euler method, Improved Euler method and fourth-order Runge-Kutta method for solving the engineering problems and applications. The three proposed methods are quite efficient and practically well suited for solving the unknown engineering problems. This paper aims to enhance the teaching and learning quality of teachers and students for various levels. At each point of the interval, the value of y is calculated and compared with its exact value at that point. The next interesting point is the observation of error from those methods. Error in the value of y is the difference between calculated and exact value. A mathematical equation which relates various functions with its derivatives is known as a differential equation. It is a popular field of mathematics because of its application to real-world problems. To calculate the exact values, the approximate values and the errors, the numerical tool such as MATLAB is appropriate for observing the results. This paper mainly concentrates on identifying the method which provides more accurate results. Then the analytical results and calculates their corresponding error were compared in details. The minimum error directly reflected to realize the best method from different numerical methods. According to the analyses from those three approaches, we observed that only the error is nominal for the fourth-order Runge-Kutta method.
Microsurgical management in Anterior Communicating Artery Aneurysms: an anatomical investigation
Authors: KARADAG Ali
Published: March 2021

Purpose: The purpose of this study is to compare the pterional approach and the anterior interhemispheric approach for enabling a better surgical maneuverability. We describe the ideal the anatomic limitations of this surgery for anterior communicating artery aneurysms.
Methods: 4 formalin-fixed and silicone injected human heads were used for each approach. Möller 20-1000 microscope was used for dissection and all the photographs were obtained at a similar angle to the surgical microscope, with Canon EOS Rebel T5 Digital SLR Digital Camera with a EF 100mm f/2.8L Macro IS USM Lens and a Canon MR-14EX II Macro Ring Lite Flash. Our dissection includes anterior interhemispheric and pterional approach with gyrus rectus resection and posterolateral orbitotomy.
Results: Pterional approach was performed followed by the gyrus rectus resection and posterolateral orbitotomy. This area can be exposed by the 1x1 cm resection of the gyrus rectus. Subpial resection from posterior part of gyrus rectus is required. Posterolateral orbitotomy was performed and the orbital roof was removed up to the superior orbital fissure. The anterior interhemispheric approach allows better visualization of the anterior and inferior surface of anterior communicating artery, A1-A2 junction and the optic nerve.
Conclusions: We believe the pterional approach combined with gyrus rectus resection and posterolateral orbitotomy, if needed, is more suitable for anterior, posterior and inferior type, with anterior interhemispheric approach being the safer for superior and high positioned anterior communicating artery aneurysms.
Morphometric Characterization of the Collum Chirurgicum
Authors: ÇERİ Nazlı Gülriz
Published: March 2021

Purpose: Collum chirurgicum is the most frequently fractured part on the proximal humerus. While, collum fractures have been a subject to vast numbers of researches, its structural dispositions depending on the variants of sex and directional morphometry requires further investigation. Therefore, we aimed to evaluate sex and side differences by using morphometric measurements of humerus and collum chirurgicum.
Methods: In order to achieve the above-mentioned objective, measurements were performed on dry humerus specimens from 60 male and 60 female origins. The circumference of collum chirurgicum (CC) and humerus length (HL) were measured. After the completion of these measurements the area (CA) of collum chirurgicum was calculated and the data obtained was utilized to create two separate indexes.
Results: The circumference of collum chirurgicum differed significantly between the sexes, but not between the right-left sides. Although there was a significant difference between male and female HL on the right side, there was no significant difference on the left side. The highest mean value of the CC in females was lower than the minimum value obtained in males. The mean value of the CA in males was higher than the maximum value obtained in females. There was a significant difference between sexes for both indexes.
Conclusion: We think that collum chirurgicum is an important region in sex determination. Therefore, morphometric data of this area can shed light on forensic research and can give an idea about the approach to fracture treatment and help in solving the clinical problems that may occur.
Focusing on the “Public” in Public Relations: The Importance of Person-Centered Messages (PCMs) in Crisis Communication on Twitter
Authors: Oh Soo Kwang , Yoo Kyung-Hyan , Owlett Jennifer
Published: March 2021

Based on the theoretical frameworks of situational crisis communication theory (SCCT) and person-centered messages (PCMs), this interdisciplinary study conducted a 2 x 3 experiment to examine the role of PCMs in crisis management on social media. Our findings suggest that crisis type (victim, preventable) has an effect on people’s perceptions/reactions toward an organization and that PCM levels (low, medium, and high person-centered messages) in crisis communication on social media influence organizational reputation and participants’ intention to post negative feedback about the organization in crisis. We suggest that when organizations are responding to crisis online, they provide additional attention to the interpersonal dynamics of those interactions. Theoretical and practical implications are discussed.
Арктические активы – от масштаба к трансформности?
Authors: Крюков В. А. , Меджидова Д. Д.
Published: March 2021

В статье рассматриваются проблемы определения и изменения состава активов, обеспечивающих достижение экономических и общественно-полезных целей развития Арктической зоны РФ. Авторы используют подход, сочетающий в себе особенности двух разных концепций. Первая применялась для оценки экономических активов (используемых преимущественно для освоения природных ресурсов), вторая же – для оценки хозяйственных (связанных с деятельностью и образом жизни коренных народов Севера и Арктики). К числу отличительных черт экономических активов АЗ РФ традиционно относили уникальные свойства природных ресурсов и характеристики объектов, их содержащих (эффект маштаба). В свою очередь одной из имманентных характеристик хозяйственных активов народов Севера и Арктики считалась так называемая «трансформность» – пространственная рассредоточенность активов, гибкость и адаптивность применяемых знаний и практик, обеспечивающих гармоничные взаимоотношения с окружающей средой и уникальными природными объектами. Предложенный авторами подход предполагает отказ от применения «эффекта масштаба» в его чистом виде в пользу формирования экономических активов, сочетающих лучшие современные высокотехнологичные решения и качества трансформности, присущие традиционной хозяйственной деятельности народов Севера и Арктики.
Институциональная экономика в современной экономической науке, или по поводу всего в статье В. М. Ефимова «Анти-Аузан: критика одной социальной философии»
Authors: Шапиро Н. А.
Published: March 2021

В статье обсуждаются проблемы институциональной экономики, поднятые В. Н. Ефимовым в журнале «ЭКО» № 9–10 (2020 г.) «Анти-Аузан: критика одной социальной философии». Несогласие с представленной критикой аргументируется тем, что оценка теории произведена с точки зрения неактуального понимания состояния современной экономической науки и ее методологии. «Критика из прошлого» вылилась в комплекс распространенных заблуждений относительно институциональной экономики. Не принимая требований современной методологии и тестируя институциональную экономику хаотическим выбором инструментов или определений прошлого, г-н Ефимов практически отрицает научную продуктивность институциональной экономики. В статье дан вариант концептуального оппонирования «критики из прошлого» по вопросам о деньгах, о соотношении институциональной экономики и неолиберализма, и о претензии институциональной экономики на социальную философию с точки зрения ее современного методологического состояния.
Экотуризм и природоохранная деятельность до и после пандемии COVID-19
Authors: Мкртчян Г. М. , Блам И. Ю.
Published: March 2021

Пандемия коронавируса привлекла внимание к экологическим и финансовым рискам, связанным с природоориентированным туризмом, заставив пересмотреть устоявшееся в современной экономической литературе мнение об экотуризме как о наилучшей альтернативе неустойчивому использованию природных ресурсов и как о важном (а иногда и единственно возможном) источнике финансирования природоохранной деятельности. Восстановление экосистем, наблюдаемое после введения противоэпидемиологических ограничений, показало, что экотуризм наносит масштабный ущерб экологическим системам на популярных направлениях, и стало дополнительным доказательством необходимости жесткого контроля рекреационной нагрузки и создания адаптированной к требованиям заповедных территорий инфраструктуры. В то же время остановка туристического потока в тех регионах, где основным источником финансирования природоохранной деятельности были доходы от природоориентированного туризма, стала причиной резкого снижения уровня жизни местного населения, вызвавшего значительное увеличение случаев нелегального использования природных ресурсов и сокращение численности редких и исчезающих видов флоры и фауны. По мнению авторов, сложившаяся ситуация позволяет сделать вывод о том, что финансирование природоохранной деятельности должно осуществляться не только за счет доходов от экотуризма, но и поддерживаться государством и международными организациями. Частно-государственное партнерство могло бы обеспечить эффективное развитие экотуризма с соблюдением всех экологических требований и, обеспечив общественную поддержку развития системы особо охраняемых природных территорий, позволило бы привлечь дополнительные средства для природоохранной деятельности.
Смыслы и практики повседневного трудового поведения сельских русских и татар
Authors: Габдрахманова Г. Ф.
Published: March 2021

Статья описывает социальные структуры (смыслы и практики) будничной трудовой жизни сельских русских и татар четырых регионов России (Башкортостана, Крыма, Татарстана и Тюменской области). Посредством анализа повседневного трудового поведения индивидуумов выявляются культурно обусловленные закономерности их социально-экономической реальности. Исследование показало много общего у сельчан обеих национальностей. Специфика же проявилась в том, что социальный конструкт повседневности у сельских татар формируется вокруг расширенной семьи, которая придает значения и смыслы их жизненному миру, а у русских сельчан центральным целью-принципом выступает индивидуализированный духовный аспект: многие рутинные практики рефлексируются в контексте обращения к внутреннему миру человека и смысложизненных вопросов. Модели повседневного трудового поведения разных национальностей дополняют друг друга и создают уникальный мир многокультурной сельской России.
Шляхи вирішення проблемних питань планування розвитку спроможностей військових формувань Збройних Сил України
Authors: Дєнєжкін М.М.
Published: March 2021

У статті на основі результатів аналізу керівних документів, що регламентують переведення системи оборонного планування на планування розвитку Збройних Сил України (ЗС України) на основі спроможностей, отриманого досвіду переходу від планування розвитку бойових можливостей, бойового складу та його організаційної структури до планування розвитку їх спроможностей визначені проблемні питання такого переходу. Зроблено висновок про неефективність обраних стратегій такого переходу, недостатність зусиль для здійснення методичного супроводження процесу, його організації, якості отриманих результатів. Запропоновано можливі шляхи вирішення проблемних питань, що виникли в ході переходу на  планування розвитку спроможностей військових формувань ЗС України. Визначено, що обрані стратегії використання готової системи планування розвитку спроможностей однієї з країн-членів НАТО, використання фрагментів (окремих процедур) планування спроможностей НАТО для розвитку військових формувань ЗС України не є ефективними та не можуть на сьогодні вирішити завдання такого переходу.  На основі аналізу позитивних та негативних рис, можливих наслідків з урахуванням умов України запропонована стратегія, яка інтегрує в собі обидва методи планування розвитку спроможностей військових формувань в НАТО та розвитку бойових можливостей військових формувань ЗС України,  включає кращі процедури цього процесу, що використовують країни-члени НАТО, враховує умови і набутий досвід планування ЗС України. Виділені можливі процедури для взаємної інтеграції, на яких доцільно здійснити синтез двох систем планування у єдину для забезпечення її працездатності в умовах ведення бойових дій Україною та обмеженого часу.
Кореляційний метод обробки складеного хаотичного сигналу
Authors: Васюта К.С. , Кащишин О.Л. , Ковальчук О.П. , Підлісний О.Д.
Published: March 2021

В роботі аналізується можливість традиційної кореляційної (когерентної) обробки при виявленні складеного хаотичного радіолокаційного сигналу на фоні шумів та пасивних завад. Показано, що при виявленні та обробці складених хаотичних сигналів можливо застосовувати традиційну кореляційну обробку. Наявність флуктуацій параметрів сигналу (його викривленої форми), через поширення в неоднорідній атмосфері та перевідбиття від повітряного судна істотно знижує якість такої обробки. Вказано, що підвищення якості обробки хаотичних сигналів необхідно проводити за рахунок використання нетрадиційних методів, що враховують специфічну структуру складених хаотичних сигналів, через їх динамічні інваріанти.