bluuebunny/crossref_metadata_2025 huggingface dataset:
Fast Skeletal Muscle Troponin and Tropomyosin as a Dietary Source of Antidiabetic and Antihypertensive Bioactive Peptides: An In Silico Study
Authors: Barrero Jorge Andrés , Barrero María Alejandra , González Clavijo Angélica María , Cruz Claudia Marcela
Published: February 2023

Background
: The nutraceutical properties of food hydrolysates rely on multiple biochemical interactions involving the modulation of enzymes and cellular receptors. Numerous bioactive peptides released from troponin and tropomyosin digestion have been identified. Their characterization has mostly been performed by hydrolysis catalyzed by proteases unrelated to the human digestive system. Objective: This study aimed to determine the bioactive profile of beef, pork, and chicken meat by analyzing the frequency and pharmacokinetics of biopeptides released from troponin and tropomyosin. Methods: In silico digestion and biopeptide release frequency were studied by three parameters; bioactive fragments release frequency (AE), frequency percentage (W), and mean occurrence (AS), all stated on the BIOPEP-UWM platform. Further on, hydrolysis end-products were screened based on gastrointestinal-absorption probability and pharmacokinetic profiling performed on SwissADME, SwissTargetPrediction, and ADME/Tlab bioinformatics web tools. Statistical analyses were performed using a one-way ANOVA test. Results: Dipeptidyl peptidase-IV (DPP-IV) and angiotensin-converting enzyme (ACE) inhibiting biopeptides exhibited the highest release frequency. Moreover, W and AS parameters showed no significant difference (p>0.05) between the myofibrillar isoforms assessed. Seven biopeptides were classified as highly absorbable and reported optimal drug-likeness compliance. Although biopeptides hold good pharmacokinetic properties, the therapeutic potency of biopeptides showed to be lower than those of DPP-IV and ACE-inhibiting drugs. Conclusions: Troponin and tropomyosin are rich dietary sources of bioactive peptides, mainly DPP-IV and ACE inhibitors. Digestion end-products are mainly dipeptides with optimal pharmacokinetic and drug-like properties, suggesting a potential therapeutic application in hypertensive and hyperglycemic disorders.
Anwendung der Verwaltungsschale in der Prozessindustrie
Authors: Höper Björn , Schüller Andreas , Tauchnitz Thomas
Published: February 2023

Das Konzept der Verwaltungsschale (VWS) wird seit dem Jahr 2018 als eine technische Implementierung zur Ermöglichung von interoperablen digitalen Zwillingen entwickelt. Die Verwaltungsschale erlaubt die strukturierte Sammlung und Verwaltung aller digitalen Informationen eines Assets. Im Bereich der Fabrikautomation wird die VWS in ersten Use Cases eingesetzt. Die NAMUR hat im November 2021 den Arbeitskreis AK 1.4 „Verwaltungsschale“ gegründet, um die Anwendung in der Prozessindustrie zu prüfen und zu fördern. Dieser Beitrag stellt die ersten beiden erarbeiteten Use Cases für die Anwendung der VWS beim Engineering einer PLT-Stelle und bei einem Geräteaustausch dar. Anhand dieser Beispiele werden Anforderungen und Möglichkeiten dafür  entwickelt, wie die in den Use Cases beschriebenen Arbeitsschritte durch Verwaltungsschalen und Teilmodelle abgebildet werden können.
The Next Generation: Ethernet-APL for Safety Systems
Authors: Niemann Karl-Heinz , Risser Marc
Published: February 2023

This paper reflects the content of the presentation “The Next Generation: Ethernet-APL for Safety Systems” at the NAMUR Annual General Meeting 2022. It deals with the use of the Ethernet Advanced Physical Layer (Ethernet-APL) in combination with the PROFINET/PROFIsafe protocol for safety applications. It describes the virtues of the digital communication between the field and safety system. In parallel the aspect of OT security for this use case is touched as well. The paper proposes a secure architecture, where safety- and non-safety field communications are still separated. At the end a set of requirements for the development of future APL devices is described.
Los no lugares
Authors: Foronda Cortés Clara
Published: February 2023

Este trabajo de investigación basado en las artes visuales y la Autoetnografía a través de las propias experiencias del sujeto investigador, ofrece a nivel artístico una serie de imágenes fotográficas tomando como referencia el término acuñado por el antropólogo francés Marc Augé sobre los “no lugares”. También se reflexionará acerca de otros contenidos como la búsqueda de la identidad a través del viaje, el paisaje y las personas que lo habitan.
Redes Sociales y Creación Artística
Authors: Moreno García Pedro Ernesto
Published: February 2023

Ser hoy artista, o más bien, dedicarse a la creación artística, es una práctica definitivamente antisistema. La lucha contra nuestro entorno tecnológico, contra la alienación que nos sugieren las redes sociales, y en general, contra el sistema político económico, es nuestra mayor premisa. En el siguiente artículo, desgranamos cuales son las zancadillas, que hacen que hoy crear arte sea una experiencia dificultosa y de difícil interés. Además, estableceremos en base al pensamiento de diferentes autores/as, cuales son las premisas necesarias para llevar a cabo la práctica artística.
Negotiating Care Work: Gendered Network Structures of Pandemic Care Discourses on Twitter in Germany
Authors: Siemon Miriam , Reißmann Wolfgang
Published: February 2023

Precarious conditions of care work are contested and deeply gendered issues all over the globe. The Covid-19 pandemic both intensifies the (national) care crises and makes care work more visible as a public issue. In this article, we ask for the opportunities, structural conditions, and limitations of voice and visibility in emerging publics beyond established media organizations. Applying the concept of performative publics and using social network analysis, we reconstruct and compare the constitution of publics around the two German language Twitter hashtags 0#systemrelevant and #CoronaEltern. In a comparative design, we ask which actor groups and what kind of genders gain visibility, and in which speaker positions women, men, and non-binary people appear. The comparison of the two case studies reveals rather different network structures and asks for more nuanced, issue-based “medium data” analyses in the linkage of gender media studies and computational methods. Whereas the public discourse on professional paid care work resembles gendered power structures, the public discourse on privatized, unpaid care work shows shifted patterns concerning female visibility. These findings are discussed critically as gendered discourse spaces of professional and privatized care work stay rather separated and thus risk reproducing traditional private/public boundaries. Furthermore, findings emphasize the importance of “invisible” relational work which keeps hashtags running. Ratios of paying attention from women to men and vice versa are unequally distributed. Females either invest more communicative effort than males or receive less attention for the equal amount of reaching out to others.
NARRATIVES OF “UNCONVENTIONAL” WAR OF MODERN MOSCOW AGAINST UKRAINE
Authors:   Heroes of the Heavenly Hundred Volyn Regional Lyceum Ukraine, MARKIVSKА Liudmyla , SIRUK Natalia ,   National University of Food Technologies, Lutsk Ukraine
Published: February 2023

The article deals with the key narratives of modern moscovy in the war against Ukraine. The longterm stay of Ukraine under the close control and leadership of the kremlin does not allow the latter to come to terms with the choice of Ukrainians – to build their own independent state.The state-building process in Ukraine began with the declaration of independence on August 24, 1991. In the 1990s, Yeltsin's russia was "choosing" its legal succession. The process of property redistribution of the USSR was underway. In 2000, a change of political leadership took place in Russia. The president of the russian federation is putin. With his arrival, a new type of political regime began to take shape in the state - putinism.A new period of russia - Ukraine relations is beginning. It was during this period that modern moscovites began to feel the chauvinistic sentiments of the Great Empire. Already during this period, russia is actively preparing for an "unconventional" war with Ukraine.In a "hybrid" war, not only military means of warfare are used, but also non-military ones: informational, economic, energy, diplomatic.First of all, russia is starting to use the information space.The aggressor country resorts to disinformation and forming the image of Ukraine as an artificially created state, and Ukrainians as a non-existent nation.In addition, in the domestic information space, Ukraine is positioned as an "external enemy" backed by the West, the USA, and NATO. And actually, according to Russian propaganda, they contribute to the functioning of the "Kyiv fascist regime" ("juntas"). Narrative of russia in the war with Ukraine is manifested in blackmailing the world community with nuclear weapons, which causes society to actively react with sanctions.Energy blackmail and the destruction of Ukraine's energy system led to the search for new sources of energy.russia's exit from the "grain agreement" is a demonstration of the real "interest" of its leadership in solving global problems.
BİTCOİN İÇİN FRAKTAL VE KAOTİK YAPIYA İLİŞKİN BİR LİTERATÜR ARAŞTIRMASI
Authors: ŞAHİN Cumhur
Published: February 2023

Dijital para kavramı 2008 yılından itibaren dünya finans sistemine girmiş olup, on dört yıl gibi kısa sayılabilecek bir zaman diliminde muazzam işlem hacmine ulaşmış ve son derece popüler bir finansal enstrüman haline gelmiştir. Dijital paraların ilki, en yaygın olanı ve en büyük işlem hacmine sahip olanı ise Bitcoin’dir. 2008 yılında Satoshi Nakamoto takma adı taşıdığı düşünülen kişi veya kişiler tarafından geliştirilmiş olup, güven yerine kriptografik kanıtlara dayalı elektronik ödeme sistemi olarak tanımlanabilir. Bu çalışmada kripto para denince ilk akla gelen ürün olan Bitcoin’in fraktal ve kaotik yapısını ele alan başlıca akademik çalışmalar hakkında bilgi verilmeye çalışılmıştır.
Çoklu Kırılmalı Birim Kök Yardımıyla Satın Alma Gücü Paritesinin Türkiye İçin Analizi
Authors: Gür Betül
Published: February 2023

Tek fiyat kanunun uluslararas? piyasaya uygulanmas? sat?n alma gücü paritesi olarak adland?r?l?r. Sat?n alma gücü paritesi, d?? ticarete konu olan bütün mallar?n fiyatlar?n? döviz kuru ile ili?kilendirir. E?er sat?n alma gücü paritesi geçerli ise, ülkeler aras?ndaki fiyat düzeyinde meydana gelen de?i?imler, nominal döviz kurunda meydana gelecek de?i?imler taraf?ndan dengelenecektir. Böylece reel döviz kuru sabit bir ortalama etraf?nda dalgalanacakt?r. Bunun için, sat?n alma gücü paritesinin test edilmesi reel döviz kurunun birim kök özelliklerinin incelenmesi ile yap?labilir. Çal??mada, Türkiye için reel döviz kuru serisi standart ve çoklu k?r?lmal? birim kök testleri ile s?nanm?? ve sat?n alma gücü paritesinin Türkiye ekonomisi için geçerli olmad??? belirlenmi?tir.
TÜRKİYE EKONOMİSİNDE PARANIN DOLAŞIM HIZI İLE BÜYÜME ARASINDAKİ İLİŞKİ
Authors: KOÇ Havva , UÇAK Ayhan
Published: February 2023

İktisatçılar arasında her ne kadar ortak bir görüş birliği olmasa da paranın dolaşım hızı, bir ekonominin genel sağlığını ve dinamiğini ölçmek için bir ölçüt olarak kullanılmaktadır. Bazı iktisatçılar, para arzındaki herhangi bir değişikliğin paranın dolaşım hızı ve enflasyonu doğrudan etkileyebileceğini iddia ederken bazıları, para arzı ve paranın dolaşım hızı arasındaki bağlantının oldukça zayıf olduğunu savunmaktadır. Bu çalışmanın motivasyonu, paranın dolaşım hızının makroekonomik performans ölçütü olan Reel GSYİH’yi nasıl etkilediği ve makroekonomik performans ölçütleri olarak belirlenen değişkenlerin paranın dolaşım hızını nasıl etkilediği sorusudur. Ekonometrik analizde bu sorunun cevabı aranmıştır. Türkiye ekonomisi için 2006–2019 yılları arasında üçer aylık verilerle dört değişken elde edilmiştir. Bunlar Reel GSYİH, Enflasyon, M1 para arzı ve dolaşımdaki paranın dolaşım hızı olan V1’dir. Reel GSYİH’nin bağımlı değişken olarak yer aldığı ve paranın dolaşım hızının bağımsız değişken olarak seçildiği model sonucuna göre; Reel GSYİH ile paranın dolaşım hızı arasında aynı yönde pozitif bir ilişki bulunmaktadır. Makroekonomik performans için seçilen değişkenlerin bağımsız olarak ve paranın dolaşım hızının bağımlı değişken olarak alındığı modelin sonucuna göre; Reel GSYİH ile paranın dolaşım hızı arasında aynı yönde pozitif bir ilişki vardır. Enflasyon değişkeni ve dolaşım hızı arasında aynı yönde pozitif bir ilişki tespit edilmiştir. M1 para arzı ile dolaşım hızı arasında ters yönde negatif bir ilişki bulunmaktadır.
SAĞLIK ÇALIŞANLARINDA BİLİŞSEL ESNEKLİĞİN KARİYER UYUM YETENEĞİNE ETKİSİNDE MUTLULUĞUN DÜZENLEYİCİ ETKİSİ
Authors: ÖZEN Şeyma , Mete Mustafa
Published: February 2023

Sağlık kurumları örgüt yapısı gereği süreklilik gösteren, sıfır hata ile çalışan, kaotik yapıya sahip kuruluşlardır. Bunun neticesin de bu sektörde çalışanlarında bu örgüte uygun hareket etmesi beklenmektedir. Bu çalışmanın amacında, İstanbul ilinde 511 tane sağlık çalışanının bilişsel esnekliklerinin kariyer uyum yeteneğine etkisinde mutluluğun düzenleyici etkisini yapısal eşitlik modeli ile ortaya koyulmaktadır. Çalışmanın sonuçları, sağlık çalışanlarının bilişsel esnekliklerinin kariyerleri ile uyum yeteneği içinde olmalarının da mutluluğun düzenleyici etkisi olduğunu göstermektedir. Bilişsel esnekliğe sahip ve kariyer uyum yeteneği olan bireylerin mutlulukları üzerindeki izlenimlerini ve yapılan işi doğrudan etkilediğini göstermektedir. Özelikle sağlık çalışanları baz alınarak yapılan çalışmada bilişsel esnekliğe sahip sağlık personelinin doğrudan kariyerine etkisi görülmektedir. Kariyer uyum yeteneği de ancak bilişsel açıdan esnek bireylerde ortaya çıkmaktadır. Bu şartlar sağlandığı taktirde de sağlık çalışanlarının mutluluklarının artacağı tespit edilmektedir.
Negocios Internacionales y Negocios Globales
Authors: Valbuena Hernández Pedro Nel , Montenegro Jaramillo Yamile Andrea
Published: February 2023

Esta editorial quiere dirigirse a la relación de los negocios, desde su perspectiva de internacionalización y su dimensión en lo global. En educación superior, los negocios internacionales tienen un bagaje validado y suficiente en su desarrollo en las instituciones de Educación superior. Los negocios globales, en cambio, se constituyen en una categoría emergente, presente en las principales escuelas de negocios a nivel mundial, y que sincroniza con las transformaciones que se han dado en lo corrido del siglo en el campo de los negocios.
Open-set face identification with automatic detection of out-of-distribution images
Authors:   National Research University Higher School of Economics, Sokolova A.D. , Savchenko A.V. ,   National Research University Higher School of Economics, Nikolenko  ,   Saint Petersburg University
Published: February 2023

One of main issues in face identification is the lack of training data of specific type (bad quality image, varying scale or illumination, children/old people faces, etc.). As a result, the recogni-tion accuracy may be low for input images which are not similar to the majority of images in the dataset used to train the feature extractor. In this paper, we propose that this issue is dealt with by the automatic detection of such out-of-distribution data based on the addition of a preliminary stage of their automatic rejection using a special convolutional network trained using a set of rare data collected using various transformations. To increase the computational efficiency, the decision about the presence of a rare image is made on the basis of the same face descriptor that is used in the classifier. Experimental research confirmed the accuracy improvement of the proposed approach for several datasets of faces and modern neural network descriptors.
An automatic method for subpixel registration of KMSS-M imagery based on coarse-resolution actualized reference
Authors:   Space Research Institute of Russian Academy of Sciences, Plotnikov D.E. , Kolbudaev P.A. ,   Space Research Institute of Russian Academy of Sciences, Loupian E.A. ,   Space Research Institute of Russian Academy of Sciences
Published: February 2023

The paper describes a method for automatic subpixel-accurate geographic referencing of imagery acquired by KMSS-M with 60 m spatial resolution, based on leveraging a coarse, reconstructed, cloud-free and daily updated MODIS surface reflectance reference image. The method is based on maximizing Pearson's correlation value when determining an optimal local displacement of the distorted image fragment by comparing with the reference image. To assess the effectiveness of the method when used over continental-scale and heterogeneous areas, three experiments were carried out providing quantitative estimates of imagery registration errors: an experiment with model datasets, an experiment to estimate the absolute registration error of MODIS reference imagery, and an experiment to estimate the registration error of geocorrected KMSS-M data. Experimental evaluation of the method based on model datasets of decameter-resolution Sentinel-2 (MSI) imagery demonstrated its robustness when used over a variety of environmental conditions over a one year-long observation period. The average georeferencing error of MODIS coarse-resolution reference was shown to be less than 20 meters in Red and Near-infrared bands. Corrected KMSS-M imagery evaluation over the Russian Grain Belt within 2020 has shown, on average, the subpixel referencing accuracy both in Red and Near-infrared bands, while the average absolute georeferencing error of the original uncorrected KMSS-M imagery was shown to be about 3 kilometers. Subpixel registration accuracy of KMSS-M imagery, corrected with MODIS-based coarse-resolution reference, opens new prospects for using multi-temporal analysis of this multispectral surface reflectance data in a variety of scientific and practical applications associated with vegetation cover satellite monitoring. The technological flexibility of the method ensures its applicability to data from other satellite systems for Earth optical remote sensing.
Conditions for correcting third-order spherical aberration in a ball lens with spherical refractive index distribution
Authors:   JSC ", Ilinsky R. ,   Lytkarino Optical Glass Factory"
Published: February 2023

A ball lens is analyzed. The refractive index of this lens is a function of the distance from the ball center. Conditions are derived under which such a lens is free of the third-order spherical aberration given a beam of incident parallel rays.
Experimental study of a matrix method of equal-weight columns correcting ability to protect data from erasure
Authors:   Southern Federal University, I.I. Vorovich Institute of Mathematics, Mechanics and Computer Science, Aydarkin Е.E. , Mogilevskaya N.S. ,   Southern Federal University, I.I. Vorovich Institute of Mathematics, Mechanics and Computer Science
Published: February 2023

The paper investigates the ability of the equal-weight columns method to resist grouping erasures. The Gilbert model for error generation flow is adapted for the case of erasures. A simulation model of the erasure-correction channel is constructed with the possibility of choosing the type of erasure and the method of protection against erasure. With the help of this model, an experimental study of the equal-weight column method and its modifications is conducted and a detailed analysis of the results with conclusions for developers of networks and data transmission channels is carried out. An estimate of the decoding probability is constructed. A method of dealing with clustering erasures by using additional redundancy is proposed.
Decision-making support system for the personalization of retinal laser treatment in diabetic retinopathy
Authors:   Samara National Research University, Ilyasova N.Y. ,   IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Kirsh D.V. ,   Samara National Research University,   IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Demin N.S. ,   Samara National Research University,   IPSI RAS - Branch of the FSRC “Crystallography and Photonics” RAS
Published: February 2023

In this work, we propose a decision-making support system for automatically mapping an effective photocoagulation pattern for the laser treatment of diabetic retinopathy. The purpose of research to create automated personalization of diabetic macular edema laser treatment. The results are based on analysis of large semi-structured data, methods and algorithms for fundus image processing. The technology improves the quality of retina laser coagulation in the treatment of diabetic macular edema, which is one of the main reasons for pronounced vision decrease. The proposed technology includes original solutions to establish an optimal localization of multitude burns by determining zones exposed to laser. It also includes the recognition of large amount of unstructured data on the anatomical and pathological locations' structures in the area of edema and data optical coherent tomography. As a result, a uniform laser application on the pigment epithelium of the affected retina is ensured. It will increase the treatment safety and its effectiveness, thus avoiding the use of more expensive treatment methods. Assessment of retinal lesions volume and quality will allow predicting the laser photocoagulation results and will contribute to the improvement of laser surgeon's skills. The architecture of a software complex comprises a number of modules, including image processing methods, algorithms for photocoagulation pattern mapping, and intelligent analysis methods.
Designing dual-band athermal refractive-lens IR objectives
Authors:   Penza State University of Architecture and Construction, Greisukh G.I. , Ezhov E.G. ,   Penza State University of Architecture and Construction, Levin I.A. ,   PJSC "Krasnogorsky Zavod"
Published: February 2023

The possibility of achieving superior optical characteristics and passive athermalization in dual-band IR objectives of a simple design is shown. This is ensured, in particular, by using refractive lenses made of chalcogenide glasses in the optical scheme. Recommendations regarding the layout of the optical scheme and obtaining initial design parameters for the subsequent optimization are given. The reliability and effectiveness of the recommendations are confirmed by the results of designing a super-aperture refractive-lens objective operating in the mid- and long-IR subranges and forming a high-quality polychromatic image on the matrix of an uncooled microbolometer in the operating temperature range from – 40°C to + 60°C.
Can the radial number of vortex modes control the orbital angular momentum?
Authors:   Physics and Technology Institute of V.I. Vernadsky Crimean Federal University, Volyar A.V. , Abramochkin E.G. ,   Lebedev Physical Institute, Bretsko M.V. ,   Physics and Technology Institute of V.I. Vernadsky Crimean Federal University, Akimova Ya.E. ,   Physics and Technology Institute of V.I. Vernadsky Crimean Federal University, Egorov Yu.A. ,   Physics and Technology Institute of V.I. Vernadsky Crimean Federal University
Published: February 2023

In general, a standard Laguerre–Gauss (LG) beam, whose state is given by two quantum numbers (n, 𝓁): the radial number n and the azimuthal number 𝓁 (or the topological charge (TС) of the vortex carried by the LG beam), is unstable with respect to weak perturbations. This is not difficult to see if we decompose the complex amplitude of the LG beam in terms of Hermite–Gauss modes (HG), with the total number of HG modes being equal to N = 2n +𝓁 + 1. If we now slightly change the amplitudes and phases of each HG mode, then the structure of the LG beam radically changes. Such a combination of modes is called a structured LG beam (sLG), which can carry large additional arrays of information embedded in the sLG beam by encoding the amplitudes and phases of the HG modes (excitation of modes). But as soon as a perturbation is inserted into the LG beam, its orbital angular momentum (OAM) can change dramatically in such a way that the value of the OAM changes in the interval (–𝓁, 𝓁), and the total TC – in the interval (–2n – 𝓁, 2n + 𝓁). At n = 0, the OAM changes smoothly in the interval (–𝓁, 𝓁), however it is worth "turning on" the radial number n, as the OAM oscillations occur. The number of minima (maxima) of the oscillations is equal to the radial number n in the interval θ = (0, π) and θ = (π, 2π), with their amplitude nonlinearly depending on the difference 𝓁 – n, except for the point θ = π, where the structured beam becomes degenerate. If 𝓁 = 0, then the OAM is zero, so that in the sLG beam structure, we observe either a symmetrical array of vortices with opposite-sign TCs or a pattern of edge dislocations, the number of which is equal to the radial number n. We also found that, despite the fast oscillations of the OAM, the absolute value of the total TC of the sLG beam does not change with variation of both the amplitude ε and phase θ parameters, but depends solely on the initial state (n, 𝓁) of the LG beam and modulo (2n + 𝓁).
Double Laguerre-Gaussian beams
Authors:   IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Kotlyar V.V. ,   Samara National Research University, Abramochkin E.G. ,   Lebedev Physical Institute, Kovalev A.A. ,   IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS,   Samara National Research University, Savelyeva A.A. ,   IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS,   Samara National Research University
Published: February 2023

We show here that the product of two Laguerre-Gaussian (LG) beams, i.e. double LG beams (dLG), can be represented as finite superposition of conventional LG beams with certain coeffi-cients that are expressed via zero-argument Jacobi polynomials. This allows obtaining an explicit expression for the complex amplitude of the dLG beams in the Fresnel diffraction zone. Generally, such beams do not retain their structure, changing shape upon free-space propagation. However, if both LG beams are of the same order, we obtain a special case of a "squared" LG beam, which is Fourier-invariant. Another special case of the dLG beams is obtained when the azimuthal indices of the Laguerre polynomials are equal to n – m and n + m. For such a beam, an explicit expression is obtained for the complex amplitude in the Fourier plane. We show that if the lower indices of the constituent LG beams are the same, such a double LG beam is also Fourier-invariant. Similar to conventional LG beams, the product of LG beams can be used for optical data transmission, since they are characterized by azimuthal orthogonality and carry an orbital angular momentum equal to the topological charge.
Spatial and time characteristics of a four-wave radiation converter in a parabolic waveguide with resonant nonlinearity
Authors:   Samara National Research University, Vorobeva E.V. , Ivakhnik V.V. ,   Samara National Research University, Kapizov D.R. ,   Samara National Research University
Published: February 2023

Spatial and temporal characteristics of a degenerate four-wave converter in a multimode waveguide with resonant nonlinearity in a scheme with counter-pumping waves are analyzed using the time response function and the point spread function. For single-mode pump waves with equal mode numbers, the dependences of the time response width on the waveguide length, the intensity of the first pump waves, and the mode number in the mode expansion of the object wave amplitude are obtained for the four-wave converter. The greatest contribution to the object wave amplitude is shown to be from the waveguide mode whose number coincides with the mode number of single-mode pump waves. For the stationary model, taking into account the spatial structure of the Gaussian pump wave leads to a monotonous decrease with a decrease in the pump beam width, followed by a constant value of the PSF module width. With single-mode pump waves with equal mode numbers, An increase in the mode number of the pump waves leads to a redistribution of energy concentrated in the side maxima of the point signal image and improvement in the quality of the wavefront reversal for a model with single-mode pump waves with equal mode numbers.
THE CLINICAL AND LABORATORY EVALUATION OF THE EFFECTIVENESS OF THE APPLICATION OF PHARMACOLOGICAL COMPOSITION BASED OF THE COMPONENTS MAKING AN EFFECT ON THE CONNECTIVE TISSUE EXCHANGE DURING COMPLEXED PERIODONTITIS TREATMENT OF THE PATIENTS WITH DYSPLASIA OF THE CONNECTIVE TISSUE
Authors: Nagaeva Marina , Griroriev Sergey , Kolpakov Viktor
Published: February 2023

Periodontal Inflammatory diseases of the patients with dysplasia of the connective tissue (DCT) characterized by the torpidity; the decreased reaction to the topical treatment. To maintain the effectiveness of the treatment of the destructive-inflammatory diseases of the periodontitis of the people with DCT, medicinal composition was invented. The medical composition consists of the components involved in the biosynthesis of the connective tissue, having high level of the transmucosal activity, anti-inflammatory and reparative effect.

The purpose of the study is an evaluation of the effectiveness of the local application of the pharmacological composition with the reparative effect consisting of the components making an effect on the connective tissue exchange during complexed periodontitis treatment of the patients with dysplasia of the connective tissue.

Methodology. In the research, 56 adults were involved (37,9 ± 2,2 years old). The participants are male and female, having undifferentiated forms of DCT and moderately severe chronic periodontitis diagnosis. The patients were divided into two groups: 1st group – got the standardized treatment of the chronic periodontitis according to the clinical recommendations n = 27); 2nd group – got the standardized treatment of the chronic periodontitis supplemented with the application of the invented pharmacological composition after the surgical stage for the 14-day period, n = 29. An original and dynamic evaluation of the clinical and laboratory indicators (the index evaluation of the periodontitis and hygiene of the oral cavity; the index of hemomicrocirculation in the periodontal tissues; oxyproline content in the oral fluid) was conducted after 7, 14, 30 and 180 days.

The results: The effectiveness was confirmed with the complexed dynamic comparative monitoring of the several clinical and laboratory indicators for the 6-month period. The statistically important differences were revealed in the index evaluation (PMA, PBI, PI); the index of the local hemomicrocirculation (Q am, the pulsation index); the content of the oxyproline in the oral fluid after 30 and 180-days periods.

Conclusion. The invented pharmacological composition with the reparative effect consisting of the components making an effect on the connective tissue exchange, has shown the effectiveness while the complexed treatment of the periodontitis of the patients with undifferentiated dysplasia of the connective tissue.
STUDY OF THE MINERALIZATION OF HARD TISSUES OF THE TEETH AFFECTED BY RADIATION CARIES USING THE METHOD OF RAMAN FLUORESCENT DIAGNOSIS
Authors: Nurieva Natal'ya , Belaykov German
Published: February 2023

Subject. Mineralization of hard tissues of teeth affected by radiation caries in patients after radiation therapy of malignant neoplasms.

Objectives. To develop a digital method for diagnosing radiation caries based on Raman fluorescence technology.

Methodology. The study was conducted at the Department of Orthopedic Dentistry and Orthodontics of South Ural State Medical University. The study was conducted on two groups of people (cohorts) comparable in sex and age, who voluntarily agreed to take part in it. The main group consisted of 20 people (patients with radiation caries), the comparison group – 20 people (without radiation caries). The main research method was the study of Raman fluorescence of tooth areas using the «InSpectr» hardware-software complex with diagnostic sensitivity according to the integral concentration of aerobic-anaerobic microbial suspension up to 109 KOE/ml. A study was made of teeth in the pathological area in patients of the main group, and in the intact area in patients of the comparison group.

Results. Raman fluorescent diagnostics of the intact tooth surface and the surface with a pathological focus made it possible to clearly see the difference in mineralization in digitized indicators. So, for example, according to the indicators of patients with damage to the teeth by radiation caries, it can be concluded that the indicators of mineralization in the focus affected by radiation caries ( y = 172 ± 0.04, x = 963 cm-1) are lower than those of the intact area (y = 1174 ± 0.071, x = 963 cm-1)

Conclusion. The method of Raman fluorescence diagnostics can be used in the diagnosis of radiation caries, since there is a potential difference between the healthy and the affected areas of the hard tissues of the tooth. On the basis of the study, the author recommends using the «InSpectr» hardware-software complex for diagnosing radiation caries.
CLINICAL AND RADIOLOGICAL ANALYSIS OF PERIODONTAL STRUCTURES IN ANATOMICAL AND FUNCTIONAL DISORDERS OF THE MUCOGINGIVAL COMPLEX
Authors: Kirienkova Ekaterina , Tokmakova Svetlana , Chudova Larisa , Gurevich Yuri , Levchenko Olga , Gaidarova Tatiana , Zhukova Elena
Published: February 2023

Subject. Anatomical and functional disorders of the mucogingival complex.

Objectives. To evaluate microcirculatory, clinical and radiological changes in periodontal tissues in various variants of mucogingival complex disorders.

Methodology. The study was conducted at the Department of Therapeutic Dentistry of ASMU. In the course of the study, 80 patients (49 women, 31 men) aged 18 to 35 years were examined with a ratio of dentition close to orthognathic bite in the presence of maximum occlusion. Three groups were formed depending on the anatomical and functional state of the mucogingival complex. In the clinical part of the study, an objective assessment of the condition of periodontal tissues was carried out on the basis of a dental examination with a comprehensive analysis of the periodontal status. The X-ray examination included the analysis and description of cone-beam computed tomograms for patients of clinical groups. To assess microcirculation in periodontal tissues, the method of ultrasonic Dopplerography with functional probe breakdown was used.

Results. In the studied groups, the level of oral hygiene was characterized as good, and the indicators of hygiene indices did not differ significantly, periodontal indices indicated the absence or minimal degree of inflammation in periodontal tissues. Carrying out a functional tension test made it possible to divide patients into subgroups according to the type of reaction: normal, compensated, subcompensated, decompensated. According to the results of the study of CBCT in the comparison group, pathological changes in the bone tissue of the alveolar process of the studied areas were not recorded, in patients of the first clinical group, in most cases (80.2%), pathological changes in the bone tissue of the alveolar process were not observed, in the rest (19.8%), a low level of alveolar bone was noted. In patients of the second clinical group, the phenomena of osteoporosis and an increase in the distance from the dental enamel-cement border to the edge of the outer cortical plate were recorded.

Conclusions. X-ray changes in bone tissue most often corresponded to the already existing clinical symptoms of periodontal tissue damage against the background of mucogingival pathology. The predictors of prenosological diagnosis in anatomical and functional disorders of the mucogingival complex were changes in microcirculation indicators.
IMPROVING THE PROTOCOL FOR THE OPERATION OF ONE-STAGE DENTAL IMPLANTATION OF PATIENTS WITH TOOTH LOSS
Authors: Diachkova Ekaterina , Tarasenko Svetlana , Sudiev Sergey , Ivanov Sergey , Kuznetsov Alexei , Atef Sokar , Bekasov Il'a
Published: February 2023

Subject. The technique of immediate dental implantation, analysis of its results and treatment protocol improvement.

Aim. To increase the effectiveness of the rehabilitation of patients with chronic periodontitis and traumatic tooth fracture (with indications for extraction) based on the improvement of the protocol for the operation of one-stage dental implantation.

Methodology. In the period from 2020 to 2022, on the basis of the Department of Oral Surgery and Maxillofacial surgery department of the RUDN University and Sechenov University, the immediate dental implantation was performed in 20 patients with a diagnosis of Chronic periodontitis and tooth fracture (K.04.5, S02.5 ICD-10) (with indications for their removal ) with the installation of 20 dental implants: Osstem Implant (South Korea) – 10 units (50%), IRIS (Russia) – 10 units (50%). In all cases, the gingival cuff shapers were installed simultaneously. If necessary, osteoplastic materials and gingival autografts were used. The installation of dental implants was carried out with a depth of 2–3 mm, depending on the jaw section, and was displaced orally with a minimum distance to the vestibular cortical plate of 1.5 mm.

Results. At the end of our study, no complications were identified, 100% integration of implants was obtained, as well as their 100% survival and stability, both according to CBCT data, and according to the results of a follow-up examination 12 months after permanent prosthetics restorations.

Conclusion. According to the results of our study, immediate implantation made it possible to carry out a full-fledged rehabilitation of patients if tooth extraction was necessary, to reduce the overall treatment time in the absence of complications in the postoperative period.
ASSOCIATIONS OF POLYMORPHISM OF THE VITAMIN D RECEPTOR (VDR) GENE AND GINGIVAL RECESSION IN MIXED DENTITION
Authors: Akisheva Aigul , Valeeva Ildaria , Mamaeva Elena , Akhtereeva Alsu , Valeeva Elena , Akhmetov Ildus
Published: February 2023

Subject of study. The development of new approaches to early diagnosis and identification of predisposition to the formation of gingival recession in children is an urgent task of modern dentistry. It is known that vitamin D plays an important role, affecting, among other things, the immune system and calcium-phosphorus homeostasis through the vitamin D receptor (VDR). In connection with the above, a promising direction is the study of polymorphisms of the vitamin D receptor gene to determine markers of gingival recession in a removable bite.

Purpose: to study the relationship of the polymorphic marker Bsm I (rs1544410 T/C) of the VDR gene with a predisposition to gingival recession in children in a removable bite living in the Republic of Tatarstan.

Methodology. We examined 81 children with gingival recession in a removable bite (8 ± 1 years old) living in the Republic of Tatarstan. DNA was isolated from buccal epithelial cells. Genotyping of the rs1544410 polymorphism of the VDR gene was performed using a real-time PCR.

Results. A positive relationship was found for the rs1544410 T allele of the VDR gene with class II gingival recession in a removable bite according to Miller's classification (p = 0.021, r = 0.258), and recession depth (p = 0.029, r = 0.24).

Conclusions. 1. A positive correlation was found between the risk allele T of the BsmI (rs1544410) polymorphism of the VDR gene and clinical manifestations of gingival recession in a removable bite in a sample of the population of the Republic of Tatarstan. 2. The distribution of alleles and genotypes of the BsmI (rs1544410) polymorphism of the VDR gene did not differ between the observation and control groups.
Elementary teachers' beliefs and practices pertaining to freedom of learning curriculum reform policy: A qualitative study
Authors: Mustofa  , Lin Chunn-Ying , Chen Hui-Hua
Published: February 2023

This study examines elementary school teachers’ beliefs and practices pertaining to the ‘freedom-of-learning’ curriculum reform policy in Indonesia. With regard to teachers’ beliefs, this study explored current topics and discussed the challenges that teachers, schools, and the government must address to when preparing to implement reforms. We conducted interviews and discussions with six elementary school teachers from six schools and enrolled participants based on their past or current experience in coordinating school curriculum frameworks and managing school curricula. Responses differed between 1) teachers who were skeptical of and resistant to the new policy, and 2) teachers who felt that the new policy was crucial and were enthusiastic about it provided specific conditions were met. However, both groups of teachers were not yet ready to accept this new policy. Based on these findings, this study recommended the following for teachers, schools, and curriculum policymakers: (1) The ongoing driving teacher program must be implemented effectively and, in a manner, different from prior programs. (2) The socialization of the freedom-of-learning curriculum reform policy must be conceptualized and systematic such that teachers develop a clear understanding of the policy. (3) During the implementation of reforms, the government should not only focus on technical implementation but also on fundamental changes in mindset.
The collapse of democratic principles in implementing school-based management in Islamic elementary schools during the COVID-19 pandemic
Authors: Kurniawan Asep , Nurdin Diding
Published: February 2023

During the COVID-19 pandemic, abnormal conditions potentially lessened community partnerships in school-based management (SBM), such as democratic erosion at the decision-making or policy-making levels at school. To address these issues, this study aimed at investigating the implementation of SBM at an Islamic elementary school in Indonesia. In this study, a mixed-method research design was used, with 510 participants surveyed for quantitative data and 50 participants interviewed for qualitative data. During the pandemic, it was discovered that SBM did not perform as expected. Moreover, school principals had to make a majority of important decisions regarding the organization of school activities. They were also in charge of putting decisions and policies into action. These findings indicate that democratic principles were violated in the implementation of SBM during the pandemic. In other words, the principals and school committee partnership did not run well since the headmaster dominated the policy making on any activities without considering the voice of the school committee. Through these findings, it can be recommended that the government conduct a comprehensive evaluation of the implementation of SBM at the Islamic school level during the pandemic, and bring together principals and school committees in intense joint meetings.
Diversity of Sea Stars (Asteroidea) in Baluran National Park Bilik Beach Intertidal Zone As a Source of Learning Biology
Authors: Novia Ayu Lestari  , Suratno  , Jekti Prihatin
Published: February 2023

Starfish (Asteroidea) is one of the biota that make up Bilik Beach, Baluran National Park. The aim of the research was to determine the diversity of starfish species (Asteroidea) in the intertidal zone of Bilik Beach, Baluran National Park, Situbondo Regency, East Java. The research method used is survey method. Data collection was carried out by site surveys, determining research locations, sampling, observing, and identifying species. Sampling was carried out when the seawater reached its maximum ebb. The research location uses 3 stations with location points that represent the area of Bilik Beach. Sampling used transect plotting technique with a total of 3 transects at each station. Based on the research results, 2 types of starfish (Asteroidea) were found, namely Linckia laevigata and Archaster typicus. The results of the calculation of the diversity index of starfish (Asteroidea) found on Bilik Beach are 0.44 which is relatively low. The findings of sea stars are used as a learning resource in the form of popular scientific books.
Dyslokacja postzależnościowa My zdes’ emigranty Manueli Gretkowskiej i Una primavera per a Domenico Guarini Carme Riery
Authors: Kłosińska-Nachin Agnieszka
Published: February 2023

Wychodząc od studiów postkolonialnych oraz od studiów nad postzależnością, autorka tekstu proponuje kategorię dyslokacji postzależnościowej, którą definiuje jako strategię narracyjną, polegającą na ulokowaniu postaci na styku dwóch przestrzeni, z których jedna nosi ślady historii lokalnej, naznaczonej sytuacją zdominowania, druga zaś jest przestrzenią odblokowanej historii. W części analitycznej autorka identyfikuje obecność dyslokacji postzależnościowej w dwóch tekstach: My zdes’ emigranty (1991) Manueli Gretkowskiej oraz Una primavera per a Domenico Guarini (1980) katalońskiej autorki Carme Riery. Bohaterki tych tekstów zwracają się ku kulturze europejskiej, noszącej cechy uniwersalnego rezerwuaru wiedzy i epistemologicznego fundamentu, w poszukiwaniu zasobów, które nadadzą sens ich tożsamościowej metamorfozie. Dyslokacja postzależnościowa pozwala zarazem uchwycić specyficzne pozycjonowanie się podmiotu wobec historii lokalnej.
Could a robot become a successful actor? The case of Geminoid F
Authors: Fuoco Ester
Published: February 2023

Could a robot be a good actor? Could it build an effective relationship of understanding and empathy with other actors or spectators? This paper offers just a glimpse, a first trace of research of a now important phenomenon that affects the Performing Arts, namely the integration of artificial agents both in the creative process and in the theatrical performance. It will be treated for this purpose by the example of the android Geminoid F, protagonist of the play Sayonara (2010) by Japanese director Oriza Hirata, created by Osaka University’s robotics expert Professor Hiroshi Ishiguro, whose gestures have been learned by imitating those of a real professional actress. Watching this android act is an alienating aesthetic experience: from the position of the audience, the boundary between human and robot is unclear. Geminoid F was chosen as co-star in the film of the same name, shot in 2015 by the internationally acclaimed Japanese director Koji Fukada, precisely because of her expressive qualities, as effective as those of a human actor, capable of arousing an empathic reaction in the viewer.
Extensiones de la protesta
Authors: Corzo Leonardo , Ardini Claudia
Published: February 2023

El artículo analiza la participación ciudadana en la protesta en contra del presidente Mauricio Macri (2015-2019) en el marco de las elecciones presidenciales del año 2019 en Argentina. En tal sentido, se realiza un análisis de contenido de las publicaciones etiquetadas con el hashtag #mmlpqtp en Twitter durante tres semanas –entre el 14 de octubre y el 3 de noviembre, días después de la elección presidencial que tuvo lugar el 27 de octubre–. En el contexto de un ecosistema de medios complejo, dinámico y participativo, marcado además por la hipermediatización y la emergencia de los movimientos de protesta política en redes sociales –la Primavera Árabe, Indignados en España, el movimiento Ocuppy Wall Street, #yosoy123 en México y #niunamenos en Argentina–, se plantea que el abordaje empírico realizado permite seguir y analizar la conformación de un universo narrativo de protesta transmedia que se expandió en diferentes formatos y siguió diversas estrategias conectadas en función de una misma consigna y disconformidades compartidas.