bluuebunny/crossref_metadata_2025 huggingface dataset:
Fabrication and oxidation resistance of the non-stoichiometric tantalum-hafnium carbonitride
Authors: Suvorova V. S. , Nepapushev A. A. , Moskovskikh D. O. , Kuskov K. V.
Published: January 2023

This research was conducted to obtain non-stoichiometric tantalum-hafnium carbonitride powder of the Fm3m (225) structural type using a combination of mechanical activation (MA) and self-propagating high-temperature synthesis (SHS) methods. Mechanical activation for 60 min in a low-energy mode (347 rpm) forms Ta/Hf/C composite particles 1 to 20 μm in size with a layered structure and contributes to a uniform distribution of elements. SHS of a mechanically activated Ta + Hf + C mixture in a nitrogen atmosphere (0.8 MPa) leads to the formation of a single-phase tantalum-hafnium carbonitride powder with the Ta0.25Hf0.75C0.5N0.3 composition where particles feature by a ≪spongy≫ morphology with pores and caverns and consist of submicron grains. Spark plasma sintering (SPS) was used to obtain a bulk sample of tantalum-hafnium carbonitride with a grain size of 3 to 5 μm, relative density of 98.2 Ѓ} 0.3 %, hardness of 19.8 Ѓ} 0.2 GPa, and crack resistance of 5.4 Ѓ} 0.4 MPa・m1/2. The kinetics of (Ta,Hf)CN oxidation at 1200 °C in air is described by a parabolic law suggesting the formation of an Hf6Ta2O17 + mHfO2 oxide layer with a low oxygen diffusion rate where the oxidation rate is 0.006 mg/(cm2・s). A (Ta,Hf)CN oxidation mechanism is proposed, which states that Ta2O5 and HfO2 are formed on the surface of grains at the first stage that react with each other at the second stage to form a Hf6Ta2O17 homologous superstructure and monoclinic HfO2. CO, CO2, NO and NO2 gaseous oxidation products are released with the formation of pores and cracks.
De la pensée à la violence verbale
Authors: ATOUGA Jean Pierre
Published: January 2023

Le présent article s’intéresse à l’incidence de la violence verbale sur le personnage. En se fondant sur la sémiotique discursive, il montre comment la parole constitue un outil d’exclusion dans l’œuvre circonscrite et relève la façon dont son auteure projette sur scène des personnages en situations discursives. Destination Biafra regorge de ces espaces troubles où le personnage se retrouve en situation de dysphorie avec son environnement. Cette désharmonie se justifie par la quête d’un mieux-être, l’envie de concrétiser certains fantasmes et le besoin d’assouvir des velléités utopiques. Ponctué de propos injurieux méprisants et blessants, le discours de l’être anthropomorphe vise bien souvent la mise à l’écart ou le rejet systématique de l’autre. Buchi Emecheta crée-t-elle autour de ses protagonistes des espaces favorables au dialogue et à la tolérance ou alors les expose-t-elle aux propos attentatoires de leurs semblables ? Quelle rhétorique (poétique d’inclusion ou d’exclusion) utilisent les acteurs anthropomorphes au sein de leurs tissus relationnels ? L’analyse des discours invectiveurs et la fréquence de leur utilisation amènent à observer que les affronts verbaux constituent des poisons rhétoriques qui visent à réduire l’être mal apprécié au silence.
Mots-clés : Affront, Exclusion, Interaction, Discours.
La ville dans Les Naufragés de l’intelligence de Jean-Marie Adiaffi
Authors: N’GUESSAN N’guessan
Published: January 2023

Les Naufragés de l’intelligence de Jean-Marie Adiaffi évoque la quête du mieux-être de la jeunesse africaine. Eu égard à cette recherche du bonheur, cet article présente la ville comme un espace de prédilection des pratiques socioculturelles déshumanisantes. Ainsi, quelles sont les représentations de la ville qu’en fait Adiaffi ? Comment l’espace urbain influence-t-il négativement les personnages qui s’y meuvent ? Pour répondre à ces questions, l’analyse part de l’hypothèse que la ville est un univers propice à la dégradation de l’humain. L’étude s’appuiera, selon les besoins, sur la sémiotique de l’espace et la sociocritique. À N’guélé Ahué Manou, la capitale de la république démocratique de Mambo, les violences socioculturelles sont telles qu’elles se manifestent aussi bien dans les quartiers précaires que dans les quartiers huppés. Finalement, les victimes vont dans le village de Gnamiensounankro où elles retrouvent la joie de vivre. Quant aux bourreaux, ils prennent conscience de la valeur de l’être humain, se détournent des violences socioculturelles humiliantes, faisant ainsi de la ville un lieu d’épanouissement et de respect des droits humains.
Le « décadent-type »
Authors: NDOUGA NKOA Elvine Félicité
Published: January 2023

Cette réflexion s’appuie sur le concept de « décadent-type ». Un générique singulier qui englobe tout individu ayant une volonté de puissance déclinante ou dégénérescente. Déployé sous des figures étranges, le décadent-type est la démonstration vivante de sujets sous l’emprise de profondes passions destructrices et de systèmes de valeurs politiques, religieux et culturels oppressifs. Il devient dès lors opportun de questionner cette métaphore de l’Homme contemporain à la lumière de trois articulations : les contextes d’avilissement comme source de vulnérabilité des sujets décadents ; les figures du décadent-type, modèles de transcendance des frontières ; la démythification des normes sociales à travers les parcours erratiques des sujets décadents.
Le commandant anti-Homme dans quelques textes narratifs africains francophones
Authors: KANGULUMBA MUNZENZA Willy
Published: January 2023

Le pouvoir politique est un concept relationnel dans la mesure où il est exercé par des hommes sur et pour des hommes, dont il s’agit de se faire obéir. Pour le commandant postcolonial africain, l’exercice du pouvoir s’apparente ainsi à une relation de contraintes et de violences parfois extrêmes imposées aux citoyens. Dès lors, la finalité du pouvoir n’est plus de servir, mais de se servir et d’asservir ; et le commandant postcolonial, en asservissant ainsi ses concitoyens, actualise l’idée du « Homo homini lupus », l’homme est pour l’homme un loup, lancée par le dramaturge latin Plaute, puis popularisée par le philosophe anglais Thomas Hobbes. La littérature africaine a souvent brocardé ce travers, dénoncé la déshumanisation du peuple ainsi que l’ensauvagement du commandant africain à travers les horreurs. Le présent article voudrait relever dans quelques romans et pièces de théâtre, des représentations qui montrent comment, par sa violence, le commandant postcolonial désacralise l’homme et se désacralise lui-même pour finalement s’ériger en anti-Homme.
Lecture postcoloniale de l’écriture de la (dés)humanisation dans Bêtes sans patrie de Uzodinma Iweala
Authors: MAMBI MAGNACK Jules
Published: January 2023

Cette contribution se penche sur la problématique de la déshumanisation de l’être humain dans Bêtes sans patrie de Uzodinma Iweala. Ce roman plonge le lecteur dans un environnement chaotique marqué par une interminable guerre civile où bourreaux et victimes semblent avoir perdu leurs attributs humains. L’homme, « être de cité » par excellence selon la conception platonicienne, se caractérise par une propension au rejet, à l’asservissement et à la réification de l’autre. On assiste à un affrontement des altérités ; les composantes de la société ne sont pas réconciliées avec elles-mêmes et avec les autres. Nous explorons les traits esthétiques spécifiques à travers lesquels le romancier met en scène l’homme dénué de son essence. Nous nous fondons sur la théorie postcoloniale pour montrer que le dispositif esthétique mis en place par l’auteur est dénotif de la déshumanisation de l’homme. Le narrateur remet ainsi en débat, la question de l’essence-même de l’être postcolonial dans le monde contemporain. Les choix esthétiques de l’auteur dans ce roman constituent des symboles et des systèmes de codification faisant appel au regain du sentiment d’humanité chez l’être postcolonial.
De la dégénérescence de l’humain à l’ère postmoderne dans la poésie de Séverin Modeste Mebenga
Authors: NGWE Raphaël
Published: January 2023

Dans ce travail, nous nous intéressons à la problématique de l’homme postmoderne dans la poésie de Mebenga. Sous l’encadrement conceptuel de la méthode thématique, notre réflexion, après avoir dégagé l’esprit de domination comme la racine de tous les maux, examine l’imposture dans laquelle le sujet postmoderne s’est installé. Au nom de l’Intelligence Artificielle, ce dernier a disqualifié le divin et s’est désinscrit de toute altérité pour quêter son bonheur dans la copulation avec la machine. Sous les apparences du mage, il est en réalité un « immage », c’est-à-dire un homme sans cœur qui travaille à l’avènement du brutalisme. Mais en dernière analyse, nous démontrons que, pour Mebenga, le brutalisme n’est pas une fatalité. Les crises auxquelles il sert de fondement offrent aussi, paradoxalement, l’occasion d’une prise de conscience : l’homme est un être plus relationnel que rationnel ; c’est dans le contact poétique avec l’autre et le Tout-autre qu’il se réalise pleinement.
Déshumanisation de l’homme, déshumanisation du monde dans Histoire(s) du cinéma de Jean-Luc Godard
Authors: KARRA Marilena
Published: January 2023

L’objectif de cet article est d’examiner la représentation de la déshumanisation de l’homme et du monde élaborée dans le cadre du film de Jean-Luc Godard, Histoire(s) du cinéma (1988-1998). Plus précisément, on vise à aborder une approche critique du concept d’homme en deux axes: premièrement, du point de vue de sa première signification en tant qu’être humain et deuxièmement, du point de vue de la masculinité. Ce qui est proposé est d’approfondir la conceptualisation de l’histoire proposée par le cinéaste, suivant laquelle toutes les histoires sont l’œuvre de la sexualité et de la guerre. C’est pourquoi on propose de parler en même temps de ces grandes histoires de l’amour et de la mort, de la sexualité et de la guerre, ou encore, d’examiner si la déshumanisation du monde, aux termes godardiens, suggère aussi l’appel à la création d’une humanité féministe.
Greek Mystery Cults. Part I: The Sanctuary of the Great Gods on Samothrace and the Mysteries of the Kabeiroi
Authors:   Institute of Philosophy and Law Novosibirsk State University, Russian Federation, Afonasin Eugene
Published: January 2023

In this article we first, using the example of Eleusis, briefly examine the question of the origin of ancient mystery practices, and we also touch upon the problem of the evolution of Greek religious beliefs from Archaic times to the Classical period. Often the presence or absence of an extraordinary experience is regarded as a criterion which allows to classify a specific ancient cult as a “mystery” cult. Another criterion, of course, is the closed, initiatory nature of these cults. We discuss this type of cults in the paper, beginning with the historically most ancient ones. The main part of the article is devoted to the detailed study of the Samothracian Mysteries and the sacred rites of Kabeiroi, first of all, in Thebes and on the island of Lemnos. The literary and epigraphic data in the article are considered in the light of archaeological findings. We see that the ancient cult of the Kabeiroi, as well as the ideas about the Great Gods of Samothrace, underwent significant changes over time, first of all, it seems, under the influence of Eleusis. Were the myths of the Samothrace and of the Kabeiroi of a ‘salvific’ nature, and not only in the sense of rescue at sea or from enemies by means of miraculous weapons or foreign magic? Obviously, since about the time of Plato, and perhaps somewhat earlier, the mystery cults, above all the Eleusinian and Orphic ones, are accompanied by certain eschatology and are conceptualized in a philosophical way. This does not mean, of course, that people stop turning to the gods with “ordinary” requests for help and, passing through initiation into the mysteries, necessarily aspire to acquire only a special “mystic” experience or secure for themselves a privileged place in the other world, the picture of which just at this time is significantly transformed. This is briefly the content of the first part of the work, published in this issue of the journal. In the second part of the study we will continue with an account of the “minor mysteries” of antiquity, such as the secret rituals of the Korybantes, the Andanian mysteries in Messenia, and the cult of Artemis in Ephesus, in order to move in the third part to late antique practices such as the mysteries of Isis and Mithras, which we hope will bring us closer to a theoretical synthesis that treats the nature and meaning of the ancient mystery cults.
The Truth Thou Hast Spoken and Judged Rightly of all Things (Notions of Truth and Justice from Homer to the Orphics)
Authors:   Novosibirsk State University of Economics and Management, Russian Federation, Donskikh Oleg
Published: January 2023

In “Axial time,” the notion of order begins to be understood in the emerging forms of individual creativity - lyric poetry, philosophy and mystery. If the notions of order, truth and justice before that time were understood only in specific actual contexts, then along with the movement towards individual consciousness the nature of the referent is changing, and these concepts begin to interact independently of the context. As far back as the Indo-European unity, the ideas of order and struggle of the two beginnings (positive and negative), embodied in different forms, appeared. The idea of order is represented by the Vedic ṛta, the Iranian arta, and the Greek dike. It is interesting that certain ideas expressed by a number of words may end up being represented by a set of concepts in which these words sometimes are no longer included. If we turn to Greek, dike begins to correlate with themis, where the first word refers to inter-family and the second to family law. But in the “Axial Age,” themis is limited to the communal level, while dike reaches the cosmic level and turns out to be just world order. And, paradoxically, because of this, it is also placed in each individual soul. This truth is revealed in a state of frenzy to the mystics, to the prayers, and to the poets. The idea of metempsychosis plays a role here. A hitherto unknown state of individual responsibility arises. The article examines the situation according to which the formation of abstract concepts proceeds by the gradual formation of a semantic field, on which the meanings of words begin to be more and more definitely differentiated. The comprehension of the corresponding images and concepts at the individual level leads to the formation of the system of philosophical categories. The connection of the conceptual system and the orientation towards individual justice is determined, in particular, by the development of the mystery cults.
Assessment of diastase levels in different floral honey from Oromia region, Ethiopia
Authors: Deressa Kebebe Meskele , Teferi Damto , Meseret Gemeda , Gemechis Laggase
Published: January 2023

Diastase is an enzyme that is found naturally in honey and degrades over time, especially when exposed to heat. Diastase can be used to indicate the age and exposure of honey to heat. However, they play a very significant role in honey quality. This study aimed to assess the diastase levels of different floral honey in potential areas of the Oromia region. In this study diastase activity, free acidity, and pH contents of different floral kinds of honey of potential areas in the Oromia region of Ethiopia were investigated based on the IHC- 2009- method. The honey pollen spectra were also characterized. When compared to other flora honey collected from the study area, the diastase activity of Erica arborea honey revealed significantly different (p < 0.05). It ranged from 4.61 ± 1.50 to 12.75 ± 4.78 Schade unit. The results of the pH value and free acidity analyses test demonstrated that the honey samples used in this investigation were fresh which ranged from 3.22 ± 0.13 to 4.17 ± 0.97 and 22.43 ± 6.37 to 35.10 ± 10.51 meq/kg honey, respectively. Honey bees’ geographical race, location and harvesting time affected diastase activities. However, it was not possible to identify the real factor influencing its diastase activities which needs further study at different agroecologies for different floral kinds of honey of the country.
MinION Sequencing protocol for Rabies virus of Arctic lineage v1
Authors: not provided pramadaprasad
Published: January 2023

An ONT MinION-based sequencing protocol to retrieve whole genomes of Rabies virus of the Artic lineage. Primers were selected using PrimalScheme (https://primalscheme.com/) and theprotocol was modified from the Zika and SARS-CoV-2 sequencing protocols using the same tool.
Statistical Analyis Plan for Assessing Psychological Phenotypes of Patients with Low Back Pain in the Military Health System v1
Authors: I Rhon Daniel
Published: January 2023

This contains the details of the the statistical analysis plan for a secondary analysis using data from 2 clinical trials of patients receiving care for low back pain.
Enteric neuron activity during spontaneous motor complexes in mouse colon v2
Authors: Smith-Edwards Kristen
Published: January 2023

This protocol describes the steps to prepare mouse colon and image GCaMP calcium activity in myenteric neurons during spontaneous colonic motor complexes.
Informe preliminar sobre algunos aspectos odontológicos de los indios Caramanta
Authors: Estrada Leonel
Published: January 2023

El Dr. Leonel Estrada, autor de este breve estudio, es miembro de la Sociedad de Antropología de Antioquia; joven odontólogo que se ha distinguido por sus inquietudes científicas en el campo de su profesión y por una gran sensibilidad cultural en nuestros elencos intelectuales. Doctor laureado de la Universidad de Antioquia por su famosa tesis sobre la ortodoncia, ha enrumbado su inquietud por el estudio dentario de los indígenas, en comparación con los grupos blancos. Las breves notas ilustradas que presentamos, auguran que su estudio a fondo en preparación, será de gran trascendencia para la antropología en este campo científico.
A Review of Mitochondrial SNP Determination using Allele-Specific PCR in Forensic Identification
Authors: Parthipan Shalini , Sandrasagran Mohitha , Ishar Seri Mirianti
Published: January 2023

Allele-specific polymerase chain reaction (AS-PCR) is a rapid and cost-effective single nucleotide polymorphism (SNP) genotyping method compared to multiplex or real-time PCR. The SNPs occurring in mitochondrial DNA (mtSNPs) is the most abundant polymorphism in humans and can be used in human identification involving mass fatality incidents. Nevertheless, the application of AS-PCR has yet to be widely applicable in forensic investigations because this method requires further development due to its limitations. This review aims to relate the applications of AS-PCR, the combination of AS-PCR with other PCR techniques and improvements imposed on this technique in past studies. A narrative literature review was carried out over 70 studies related to the mtDNA, SNP, AS-PCR, and forensic DNA. The findings suggested that AS-PCR with new adaptations in technology such as incorporating additional mismatch, choosing allele-specific primer with either common forward or reverse, gel free real-time AS-PCR analysis, and usage of fluorescence probes can improve the specificity of SNP genotyping in forensic applications. This review concludes that AS-PCR and its combination with other improvised techniques can be applied in human identification to successfully analyze degraded or low quantity samples. Nevertheless, development of more SNP loci is required to implement AS-PCR in human identification to match the current gold standard STR typing method.
Enhanced Catalytic Palladium Embedded Inside Porous Silicon for Improved Hydrogen Gas Sensing
Authors: Abd Rahim Alhan Farhanah , Mohd Razali Nurul Syuhadah , Radzali Rosfariza , Mahmood Ainokhilah , Hamzah Irni Hamiza , Packeer Mohamed Mohamed Fauzi
Published: January 2023

In this work, we reported on room temperature porous silicon (PS) and embedding PS using simple and economical techniques of electrochemical etching and thermal evaporation. The PS substrate was prepared using the technique of electrochemically etching the n-type Si (100) wafer at a constant current density of 10 mA/cm2 for 10 min under the illumination of incandescent white light. After PS formation, Ge pieces were thermally evaporated onto the two PS substrates in a vacuum condition. This was then followed by the deposition of the ZnO layer onto the Ge/PS substrate by the same method using commercial 99.9% pure ZnO powders. The three samples were identified as PS, Ge/PS and ZnO/Ge/PS samples, respectively. Pd finger contacts were deposited on the PS and embedding PS (Ge/PS and ZnO/Ge/PS) to form Pd on PS hydrogen sensors using RF magnetron sputtering. SEM and EDX suggested the presence of substantial Ge and ZnO inside the uniform circular pores for Ge/PS and ZnO/Ge/PS samples, respectively. Raman spectra showed that good crystalline Ge and ZnO nanostructures embedded inside the pores were obtained. For hydrogen sensing, Pd on ZnO/Ge/PS Schottky diode exhibited a dramatic change of current after exposure to H2 as compared to PS and Ge/PS devices. It is observed that the sensitivity increased exponentially with the hydrogen flow rate for all the sensors. The ZnO/Ge/PS showed more sensitivity towards H2 than that of PS and Ge/PS especially at high flow rate of H2 with higher current gain (69.11) and shorter response (180 s) and recovery times (30 s).
Quality of life of patients with paraurethral cysts
Authors: Mansur A. , Gritskievich A. A. , Kostin A. A. , Kulchenko N. G. , Pospelova O. M. , Kalinycheva G. E.
Published: January 2023

Background. Paraurethral cyst (PC) is often found in women aged 20–60 years. The prevalence of PC in the female population is 1–6 %. Since PC are often located in the distal urethra and lie close to the genitals of a woman, the symptoms associated with this disease cause women both physical and psychological suffering.

Aim. To assess the quality of life of women with PC.

Materials and methods. The study included female individuals (n = 106) aged 18–60 years, in whom PC were detected during examination of the perineal region. The quality of life of the patients was assessed on the basis of the health quality questionnaire – SF-36.

Results. The average volume of the PC in the observed women was 3.2 ± 1.3 cm. In the observed women, the intensity of pain in the perineum was directly proportional to the duration of the disease: up to a year – 86.3 ± 4.1; from one to three years – 76.4 ± 8.3; more than three years – 64.4 ± 9.2 (p <0.05). In this regard, in this category of patients, indicators of physical activity, psychological health and role functioning due to emotional state were reduced. Repeatedor constant pain during urination and during sexual activity causes severe distress, which affects the quality of life of patients with cystic formations in the paraurethral region.

Conclusion. In women with PC on the background of dyspareunia up to 3 years and more, physical and psychological aspects of health suffer.
Chaekhleby: How the Siberians at the Table were Ahead of the Europeans
Authors:   Institute of Archaeology and Ethnography, Siberian Branch, Russian Academy of Sciences, Fursova E. F.
Published: January 2023

Th e book raises questions related to the formation of tea drinking traditions in Siberia and their further development in the late 19th – early 20th century. Particular emphasis is placed on the specifi city of tea consumption in diff erent ethno-cultural groups of Siberia: among the descendants of Russian old-timers, Old Believers and late Russian settlers of the post-reform and Stolypin periods. Th e original fi eld and archival material provides interesting facts from the history of the formation of the tea trade in Siberia, about the traditions of Siberian tea drinking and table etiquette in the countryside. Ethnographic material answers the questions to what extent and in what forms tea drinking has become our national tradition, how original Russian tea drinking is in the Siberian version and what are its origins. Th e book is intended for the widest circle of readers, educators, students of schools and higher educational institutions, historians, ethnographers, local historians and anyone who is interested in the history and traditional culture of Siberians.
A Study of Z-Transform Based Encryption Algorithm
Authors: Alenezi Mohammed N. , Al-Anzi Fawaz S.
Published: January 2023

It has become increasingly important to ensure the protection of information, especially data in transit. Therefore, it is the primary goal of any encryption algorithm to safeguard the protection of information against security attacks. It is equally important to design high-performance solutions with affordable cost of implementation. Encryption algorithms are used to transform plain text to the ciphertext in order to protect privacy, prevent data fraud, and prevent unauthorized access of data in daily transactions. There are multiple types of encryption algorithms, each with its niche tactics to enhance security. For instance, different kinds of algorithms include but are not limited to the following: Blowfish, RSA, AES, DES, Triple DES. This paper contributes an efficient and secure encryption algorithm technique for information security based on Z transformation and XOR function known as the Z Transformation Encryption (ZTE) technique. To elaborate, this technique implements concepts of Z transformation and XOR operations at the source. The reverse process is applied at the receiving end of the transaction wherein the inverse of Z transformation and XOR is applied to reveal the original plain text message. The simulation of the proposed algorithm is conducted using the R language. The results show a promising performance comparing to other symmetric algorithms.
The method of discretization signals to minimize the fallibility of information recovery
Authors: Laptiev Oleksandr , Yevseiev Serhii , Hatsenko Larysa , Daki Olena , Ivanenko Vitaliy , Fedunov Valery , Hohoniants Spartak
Published: January 2023

The paper proposes a fundamentally new approach to the formulation of the problem of optimizing the discretization interval (frequency). The well-known traditional methods of restoring an analog signal from its discrete implementations consist of sequentially solving two problems: restoring the output signal from a discrete signal at the output of a digital block and restoring the input signal of an analog block from its output signal. However, this approach leads to methodical fallibility caused by interpolation when solving the first problem and by regularizing the equation when solving the second problem. The aim of the work is to develop a method for the signal discretization to minimize the fallibility of information recovery to determine the optimal discretization frequency.The proposed method for determining the optimal discretization rate makes it possible to exclude both components of the methodological fallibility in recovering information about the input signal. This was achieved due to the fact that to solve the reconstruction problem, instead of the known equation, a relation is used that connects the input signal of the analog block with the output discrete signal of the digital block.The proposed relation is devoid of instabilities inherent in the well-known equation. Therefore, when solving it, neither interpolation nor regularization is required, which means that there are no components of the methodological fallibility caused by the indicated operations. In addition, the proposed ratio provides a joint consideration of the properties of the interference in the output signal of the digital block and the frequency properties of the transforming operator, which allows minimizing the fallibility in restoring the input signal of the analog block and determining the optimal discretization frequency.A widespread contradiction in the field of signal information recovery from its discrete values has been investigated. A decrease in the discretization frequency below the optimal one leads to an increase in the approximation fallibility and the loss of some information about the input signal of the analog-to-digital signal processing device. At the same time, unjustified overestimation of the discretization rate, complicating the technical implementation of the device, is not useful, since not only does it not increase the information about the input signal, but, if necessary, its restoration leads to its decrease due to the increase in the effect of noise in the output signal on the recovery accuracy. input signal. The proposed method for signal discretization based on the minimum information recovery fallibility to determine the optimal discretization rate allows us to solve this contradiction.
An Enhanced Block Pre-processing of PRESENT Algorithm for Fingerprint Template Encryption in the Internet of Things Environment
Authors: Katuk Norliza , Chiadighikaobi Ikenna Rene
Published: January 2023

Many previous studies had proven that The PRESENT algorithm is ultra-lightweight encryption. Therefore, it is suitable for use in an IoT environment. However, the main problem with block encryption algorithms like PRESENT is that it causes attackers to break the encryption key. In the context of a fingerprint template, it contains a header and many zero blocks that lead to a pattern and make it easier for attackers to obtain an encryption key. Thus, this research proposed header and zero blocks bypass method during the block pre-processing to overcome this problem. First, the original PRESENT algorithm was enhanced by incorporating the block pre-processing phase. Then, the algorithm’s performance was tested using three measures: time, memory usage, and CPU usage for encrypting and decrypting fingerprint templates. This study demonstrated that the proposed method encrypted and decrypted the fingerprint templates faster with the same CPU usage of the original algorithm but consumed higher memory. Thus, it has the potential to be used in IoT environments for security.
Demand Based Cost Optimization of Electric Bills for Household Users
Authors: Tawalbeh Nabeel , Malkawi Mohammad , Abusamaha Hanan , Alnaser Sahban
Published: January 2023

Abstract- Internet of Things (IoT) is increasingly becoming the vehicle to automate, optimize and enhance the performance of systems in the energy, environment, and health sectors. In this paper, we use Wi-Fi wrapped sensors to provide online and in realtime the current energy consumptions at a device level, in a manner to allow for automatic control of peak energy consumption at a household, factory level, and eventually at a region level, where a region can be defined as an area supported by a distinct energy source. This allows to decrease the bill by avoiding heavily and controllable loads during high tariff slice and/or peak period per household and to optimize the energy production and distribution in a given region. The proposed model relies on adaptive learning techniques to help adjust the current load, while taking into consideration the actual and real need of the consumer. The experiments used in this study makes use of current and voltage sensors, Arduino platform, and simulation system. The main performance indexes used are the control of a peak consumption level, and the minimum time needed to adjust the distribution of load in the system. The system was able to keep the maximum load at a maximum of 10 kW in less than 10 seconds of response time. The level and response time are controllable parameters.
A MODEL OF A DISTRIBUTED INFORMATION SYSTEM BASED ON THE Z39.50 PROTOCOL
Authors: Serikbayeva Sandugash , Tussupov J. A. , Sambetbayeva M. A. , Yerimbetova A.S. , Borankulova G.B. , Tungatarova A.T.
Published: January 2023

Based on the analysis of typical scenarios of information servers, the tasks that should be solved when organizing an access control system for distributed information resources are formulated. The possibilities of the Z39.50 technologies as the most suitable for building such a system are considered. Within the framework of this technology, three access control models are discussed, which differ in the degree of integration of information server functions with the Z39.50 technologies.The creation and support of distributed information systems and electronic libraries that integrate heterogeneous information resources and operate in various software and hardware environments requires special approaches to managing these systems. If the resources or data themselves can be managed locally, even for distributed information systems, then the task of managing access to distributed resources cannot be solved within the framework of local administration. The justification of the last thesis can be seen when considering typical scenarios of the information server, which we will describe below
Channel Propagation Characteristics on the Performance of 4G Cellular Systems from High Altitude Platforms (HAPs)
Authors: Yusuf Kabiru , Shuaibu Dahiru Sani , Babale Suleiman Aliyu
Published: January 2023

In this paper, we investigated the effect of different channel propagation characteristics on the performance of 4G systems from high altitude platforms (HAPs). The use of High-Altitude Platforms for communication purpose in the past focused mostly on the assumption that the platform is quasi stationary. The technical limitation of the assumption was that of ensuring stability in the positioning of the platform in space. The use of antenna steering and other approaches were proposed as a solution to the said problem. In this paper, we proposed a channel model which account for the motion of the platform. This was done by investigating the effect of Doppler shift on the carrier frequency as the signals propagate between the transmitter and receiver while the High-Altitude Platform is in motion. The basic free space model was used and subjected to the frequency variation caused by the continuous random shift due to the motion of the HAPs. The trajectory path greatly affects the system performance. A trajectory of 30km, 100km and 500km radii were simulated. An acute elevation angle was used in the simulation. The proposed model was also compared to two other channel models to illustrate its performance. The results show that the proposed model behave similar to the existing models except at base station ID 35 and 45 where the highest deviation of 20dBm was observed. Other stations that deviated were less than 2dBm.
Design of a Network Intrusion Detection System Using Complex Deep Neuronal Networks
Authors: Al-Shabi Mohammed Abdulhammed
Published: January 2023

Recent years have witnessed a tremendous development in various scientific and industrial fields. As a result, different types of networks are widely introduced which are vulnerable to intrusion. In view of the same, numerous studies have been devoted to detecting all types of intrusion and protect the networks from these penetrations. In this paper, a novel network intrusion detection system has been designed to detect cyber-attacks using complex deep neuronal networks. The developed system is trained and tested on the standard dataset KDDCUP99 via pycharm program. Relevant to existing intrusion detection methods with similar deep neuronal networks and traditional machine learning algorithms, the proposed detection system achieves better results in terms of detection accuracy.
Implantable cardioverter-defibrillators for primary and secondary prevention of sudden cardiac death in clinical practice: analysis of the clinical and anamnestic characteristics of patients according to the Kuzbass registry
Authors: Lebedeva N. B. , Talibullin I. W. , Parfenov P. G. , Mamchur S. E. , Barbarash O. L.
Published: January 2023

Aim. To study clinical and anamnestic data of patients with implantable cardioverterdefibrillators (ICD) for primary or secondary prevention of sudden cardiac death (SCD) based on the data from the Kuzbass ICD registry.Methods. Retrospective analysis of demographic, clinical and anamnestic data from the “Kuzbass Registry of Patients with Implanted Cardioverter-Defibrillator”, which includes 286 patients admitted at the Kuzbass Cardiology Center in 2015–2019, was carried out.Results. The age of patients included in the registry was 59 (53; 66) years, 239 (83.6%) were men; all patients were diagnosed with heart failure. ICD for primary prevention of SCD was prescribed in 171 (63.6%) patients (group 1) and for secondary prevention in 98 (36.4%) patients (group 2). The groups were comparable in age, sex, main nosology (coronary artery disease), left ventricular ejection fraction (31.4 (26; 35) and 30 (10; 68)%, p = 0.389). Compared with the group 2, the group 1 had fewer working patients, higher incidence of heart defects, severe heart failure, higher incidence of paroxysmal supraventricular tachycardia (68.7% versus 44.8%, p = 0.001), and higher rates of revascularization (48, 9% and 31.7%, respectively, p = 0.006). Before ICD implantation for heart failure, 210 (73.4%) patients were receiving renin angiotensin aldosterone system inhibitors, 259 (90.6%) – beta-blockers, 167 (58.4%) – mineralocorticoid receptor antagonists. There were no differences in prescribed treatment between the groups. Only 137 (47.9%) patients, 86 (47.3%) patients in the group 1 and 51 (49.0%) patients in the group 2 received triple neurohormonal blockade. Remote monitoring was used only within the framework of research programs.Conclusion. The primary cohort of patients with ICD is the primary SCD prevention group. Regardless of the type of SCD prevention, the underlying disease is coronary artery disease. Current guidelines for optimal drug therapy and myocardial revascularization are not always followed prior to ICD implantation. The creation of registries of patients with ICD is an effective way to identify existing problems in ICD patient selection and to optimize follow-up and treatment.
Percutaneous non-invasive stimulation: possibilities and prospects of the method in the practice of specialists in internal diseases
Authors: Drapkina O. M. , Dzhioeva O. N. , Rogozhkina E. A. , Shvarts E. N. , Kiselev A. R.
Published: January 2023

The article provides an overview of key studies on vagus nerve stimulation. The vagus nerve stimulation method affects the nerve fibers of the internal and external nerve plexuses, enhancing the parasympathetic effect. The positive therapeutic effect has been achieved in various experimental and clinical studies on the treatment of neurological and cardiac diseases, metabolic syndrome, and obesity. It has been shown that vagus nerve stimulation reduces epileptic seizures frequency, cardiac arrhythmias, and is prognostically favorable for the treatment of ischemia and reperfusion injury of the myocardium. Recent studies have examined the inflammatory reflex involved in the pathogenesis of obesity. The role of bioelectronic vagus nerve stimulation is being actively investigated for the treatment of obesity and metabolic syndrome.
Modifiable and nonmodifiable risk factors in redo mitral surgery
Authors: Stasev A. N. , Halivopulo I. K. , Shabaldin A. V. , Afanasyev V. I. , Yevtushenko A. V. , Barbarash L. S.
Published: January 2023

Highlights. In the present study, we conducted a retrospective analysis redo mitral valve replacement due to prosthesis failure. Predictors of adverse events and death have been analyzed. The quality of obtained predictors was verified using ROC analysis.Aim. To analyze predictors of adverse events and death in redo mitral procedure for treating mitral bioprostheses failure.Methods. The retrospective registry study of catamnesis of patients undergoing treatment for mitral valve prosthesis dysfunction was carried out. The age and gender of patients, medical history, underlying and comorbid diseases, features of primary replacement and reoperation, durability of the primary prosthesis, adverse events and death after redo mitral valve replacement and others (more than 30 factors) were taken into account. Stepwise logistic regression was used for statistical processing. The quality of obtained predictors was verified using ROC analysis.Results. The results of the study have revealed that there are modifiable risk factors such as cardiopulmonary bypass time, ischemia time, and nonmodifiable risk factors like reoperation, baseline severity of the patient's condition, complications of median resternotomy, concomitant interventions on aortic valve during reoperation. Moreover, treating atrial fibrillation during primary replacement proved to have an overall protective effect.Conclusion. Тhe only modifiable factors that can be influenced during redo mitral valve replacement due to biological prosthesis failure are cardiopulmonary bypass duration and aortic cross-clamping time.
Comparative analysis of mid-term outcomes of Rigid and NeoRing support rings in mitral regurgitation surgery: a prospective randomized trial
Authors: Dvadtsatov I. V. , Evtushenko A. V. , Kuzmina O. K. , Barbarash L. S.
Published: January 2023

Highlights. For the first time, as part of a prospective randomized study, a comparative assessment of the mid-term results of mitral valve annuloplasty using a new biological NeoRing ring (CJSC NeoKor, Kemerovo) and a RIGID ring (CJSC NPP MedInzh, Penza) in patients with connective tissue dysplasia was carried out. Predictors of the conversion of sinus rhythm to atrial fibrillation and residual mitral insufficiency in the medium-term follow-up period were determined.Aim. To analysis and compare mid-term results of mitral valve annuloplasty conducted using NeoRing и RIGID rings.Methods. From November 2019 to March 2022, 62 patients with mitral valve (MV) dysplasia underwent MV annuloplasty using NeoRing semi-rigid rings (CJSC NeoKor, Kemerovo, n = 31) and rigid RIGID rings (CJSC NPP MedInzh, Penza, n = 31). There were no differences between the groups at baseline.Results. Two deaths were registered during inpatient treatment in the RIGID group. Both devices showed a satisfactory outcome during inpatient treatment in the form of restoration of MV function (p<0.001) and the frequency of detected maximum residual mitral regurgitation (MR) up to grade 1 in the NeoRing group 9.7% and in the RIGID group 29%, respectively, no statistically significant intergroup differences were noted (p = 0.292). After 12 months, freedom from ≥2 grade MR in the NeoRing group was 93.5% and 77.4% in the RIGID group (p = 0.147). In the RIGID group, patients had higher values of the transvalvular mitral diastolic gradient – PAV 3.70 [3.00–4.40] mm Hg vs. NeoRing group 2.3 [2.05–2.85] mmHg (p<0.001), as well as a higher transvalvular flow rate – VAV 79 [71–94] cm/sec vs. 70 [64–79] cm/sec (p = 0.017). The analysis of the achievement of composite primary endpoint (recurrence of ≥2 grade MR, MACCE, new onset arrhythmias, reoperations) by the device was carried out. The composite endpoint rate in the RIGID group was 3.067 times higher compared to the NeoRing group, odds differences were statistically significant (p = 0.037, 95% CI: 1.053–8.934).Conclusion. The outcome of MV annuloplasty conducted using rigid and semi-rigid rings revealed no significant differences in long-term survival and recurrence of MR between groups. Given the statistically significant difference in achieving the combined endpoint, lower inpatient and long-term indicators of transmitral pressure gradient, and a positive effect on cardiac chambers reverse remodeling, it was concluded that the use of semi-rigid NeoRing rings for MV annuloplasty when performing valvepreserving operations for connective tissue dysplasia is preferable.
Effects of shear stress on the properties of colonyforming endothelial cells in comparison with coronary artery endothelial cells
Authors: Velikanova E. A. , Matveeva V. G. , Khanova M. Yu. , Antonova L. V.
Published: January 2023

Highlights. It is assumed that pre-colonization by endothelial cells of the inner surface of tissue-engineered vessels of small diameter can serve as an effective way to prevent thrombosis. The question of choosing the optimal source of endothelial cells for use in tissue engineering remains debatable. The paper considers the features of the culture of colony-forming endothelial cells obtained from the peripheral blood of patients with coronary heart disease, in comparison with mature endothelial cells from the coronary artery.Aim. To study the effect of laminar flow on the morphological and functional characteristics of mature endothelial cells and peripheral blood-derived endothelial colony-forming cells.Methods. Coronary artery endothelial cells were purchased from the Cell Applications, Inc. Colony-forming endothelial cells were obtained from the peripheral blood of patients with coronary artery disease who underwent percutaneous coronary intervention. The cells were isolated using a Ficoll gradient and cultured in EGM-2MV culture medium containing 5% fetal bovine serum. The cells of the experimental group were cultured in µ-Luer plates in a perfusion system with a shear stress of 3 dyn/cm2 . The cultivation time was 2 days. The cells of the control group were cultured under static conditions. At the end of the cultivation we performed immunofluorescent staining for CD31, KDR/CD309, CD144, vWF, type IV collagen, F-actin.Results. Colony-forming endothelial cells and coronary artery endothelial cells retained high density and viability both under static and laminar flow conditions. Shear stress stimulated a change in the phenotype of colony-forming endothelial cells towards a mature endothelial cells, in particular, a significant increased the expression of KDR/CD309 and CD31. The action of laminar flow reduced the synthesis of von Willebrand factor, stimulated the synthesis of type IV collagen. Shear stress promoted the development of structural rearrangements in cells in response to transduction, which manifested in a change in F-actin fibrils orientation on the flow direction.Conclusion. Colony-forming endothelial cells showed a characteristic response to the action of shear stress, consisting in a change in morphology, phenotype, and secretory activity of cells, comparable to that of coronary artery endothelial cells.
Activation of Notch signaling in endothelium cause upregulation of N-terminal acetylated histone 1
Authors: Lobov A. A. , Perepletchikova D. A. , Repkin E. A. , Malashicheva A. B.
Published: January 2023

Highlights. Notch signaling is known to be important regulator of endothelium homeostasis and cardiovascular disease. Particularly, Notch seems to be associated with pathological changes in endothelium epigenome although no such Notch effects have been found. We have discovered that activation of Notch signaling alters histone 1 repertoire in the human endothelial cells and this is the first example of epigenomic Notch targets.Aim. The disturbance of blood flow and alteration of physiological shear stress is one of the main reasons for endothelial dysfunction. Mechanosensitive and dosedependent Notch pathway is assumed to be an important player of endothelial dysfunction progression, but the molecular mechanisms of the influence of Notch dysregulation on endothelium are still not understood. In particular, there is no data about possible targets of Notch in the endothelial epigenome.Methods. Here we focused on the analysis of changes in histone code of human umbilical vein endothelial cells (HUVEC) after activation of Notch. For this purpose, we transduced cells by lentiviruses with construction for Notch 1 intracellular domain (N1ICD) overexpression or by empty vector (control). Then we isolated histone enriched fraction and secretome proteins and performed their shotgun proteomics analysis on timsToF Pro instrument. Proteomics data are available via ProteomeXchange with identifier PXD032978.Results. We found the shift in proteomics profile of HUVEC caused by Notch activation and, particularly, the increase in the levels of N-terminal acetylated forms of histone 1: H1-0, H1-3, H1-4, H1-5, H1-10. We also found changes in the cell secretome profile which are associated with the decrease in proangiogenic effect of HUVEC secretome.Conclusion. Our data identified epigenomic Notch targets and we assume that changes in H1 repertoire might be associated with cardiovascular disease progression in vivo.