bluuebunny/crossref_metadata_2025 huggingface dataset:
Dynamic stress attenuation characteristics of geocell-reinforced railway subgrade
Authors: Xiao J. , Wang K. , Xue L. , Liu Z. , Bai Y. , Sun S. , Yang F.
Published: May 2023

The dynamic stresses in many subgrades for old railways exceed the bearing capacity of the fillers. The geocell has been used to reinforce weak subgrades and achieve a quick attenuation in the dynamic stress. In this study, a series of field tests were conducted to investigate the dynamic stress attenuation characteristics in a weak subgrade reinforced with a geocell. A coupled finite element-discrete element model was developed to analyze the mechanism of the stress attenuation from a multiscale perspective. The results indicated that increasing the geocell height or decreasing the weld distance resulted in an increase in the attenuation rate. There was a threshold for the weld distance, below which its impact on the stress attenuation rate became negligible. When the weld distance was small, the dynamic stress attenuation was attributed to the geocell induced lateral confinement for the infilled soil. With the weld distance increasing, the deformation of the geocell increased and the membrane effect was further mobilized, which contributed to the dynamic stress attenuation. Based on the field test and numerical results, a design method was proposed to determine the reinforcement parameters of geocell-reinforced subgrade, aimed at improving dynamic stress attenuation and preventing subgrade distress.
Rol de la psicología en el proceso de modernización y transformación institucional de la Policía Nacional
Authors: Ruiz Guevara Sandra Milena ,   Universidad Cooperativa de Colombia, López Cantero Ever José , Ortiz Triviño Bertha Liliana
Published: May 2023

A lo largo del tiempo, la Policía Nacional ha asumido un papel vital en la garantía del orden y la tranquilidad de la sociedad, puesto que ha sido la encargada de velar por la implementación de leyes que dirigen la forma de comportarse del hombre en comunidad, a fin de preservar el cumplimiento de los derechos, deberes, el orden público y la tranquilidad. En este sentido, de acuerdo con la historia social, política y económica de Colombia, este organismo ha tenido que adaptarse al momento y los desafíos de seguridad y convivencia del país. Por esta razón, a partir de los años noventa, esta institución inició la modernización y transformación mediante las cuales busca brindar un servicio policial más efectivo y cercano a la ciudadanía. En este sentido, a fin de cumplir con los objetivos planteados, hemos visto cómo la psicología como ciencia del comportamiento ha venido integrándose y formando parte del proceso funcional del cuerpo policial, en la búsqueda de la prestación de un mejor servicio a la comunidad, la promoción de una mejor calidad de vida y salud mental y el mejoramiento de la imagen o confianza social.
Cuidado psicosocial y de salud mental a partir de la teoría de Joyce Travelbee: una experiencia del cuidado
Authors: Padilla Constante Kisi Nayidis ,   Universidad Cooperativa de Colombia
Published: May 2023

La narrativa en enfermería se enseña como la expresión de una situación vivenciada por dos individuos, en la que solo surge la necesidad de cuidar basándose en una necesidad sentida a propia voz, de quien lo experimenta y describe categóricamente ante situación compartida, lo cual permite analizar en el estudiante sus conocimientos con relación al desarrollo de una narrativa y la aplicación de una de las teorías de rango medio de la relación persona a persona de Joyce Travelbee. Esta permite identificar los metaparadigmas, las visiones de enfermería y los patrones de conocimiento de Carper, lo cual ayuda al futuro profesional a consolidar sus conocimientos frente al ejercicio de su profesión. Los recursos utilizados para su elaboración fueron: revisión de artículos, libros de textos, monografías, entre otros. También se utilizó el método de entrevista retrospectiva y se consultaron a expertos en la temática. En conclusión, es muy importante la aplicación de la teoría de rango medio de Joyce Travelbee de relación persona a persona a través de la escucha efectiva, para la identificación de la necesidad sentida de la persona afectada, logrando con esto mejorar su vida.
Doppler Indices of Uterine, Umbilical and Fetal Middle Cerebral Arteries Before and After Sildenafil Citrate and Transdermal Nitroglycerin in Cases Suffering from Intrauterine Growth Restriction
Authors: El-Bheirey Ahmed Mohammed ,   Resident of Obstetrics and Gynecology, Tanta University, Tanta, Egypt, El-Hamamy Nareman Mahmoud , El-Shafey Mohamed Hassan , El-Tokhy Hesham Mohamed ,   Lecturer of Obstetrics and Gynecology, Tanta University, Tanta, Egypt,   Professor of Radiodiagnosis, Tanta University, Tanta, Egypt,   Professor of Obstetrics and Gynecology, Tanta University, Tanta, Egypt
Published: May 2023

Introduction Intrauterine growth restriction (IUGR) is a major cause of perinatal morbidity and mortality. Its diagnosis and treatment constitute one of the most important challenges of present day obstetrics. A drug that could improve maternal and fetal hemodynamics in the setting of early intrauterine growth restriction has potential benefit for at least palliation of this ominous condition. In most instances the etiology of IUGR is unknown. The absence of a uniform etiology may help one understand the existence of the large number of treatments suggested for correcting the problem Patients and methods The objective of this study was to compare the effect of transdermal nitroglycerin and oral Sildenafil citrate on Doppler indices of uterine, umbilical and fetal middle cerebral arteries, and changes in fetal weigh, abdominal circumference and amniotic fluid volume in fifty pregnant women who attended inpatient and outpatient clinics in the department of Obstetrics & Gynecology in Tanta University Hospitals, and suffering from asymmetrical intrauterine growth restriction. Results of the study proved a clear significance of the growing role of transdermal nitroglycerin and Sildenafil citrate for augmenting, feto-placental blood flow in the setting of placental vascular insufficiency and IUGR, as a significant reduction in umbilical artery RI, uterine artery RI in the two groups, also abdominal circumference, AFI and estimated fetal weight were significantly increased after 21 days from treatment. That gives a promising treatment for IUGR patients.
Ternary forking lemma and its application to the analysis of one code-based signature
Authors: Tsaregorodtsev K. D. ,   JSC NPK Kryptonite
Published: May 2023

The paper is devoted to the generalization of the so-called “forking lemma” to the case when the hash function returns a tuple of trits (trit is a variable that can take one out of the three values 0, 1, 2). It can be stated as follows. Let A(par, b) be an algorithm that, when run on randomly chosen par ←R Params and b ←R {0, 1, 2} δ , successfully stops and returns the correct answer x with probability ϵ. Then there exists an algorithm B that uses A as a subroutine and returns a triple (x1, x2, x3), where xi ← A(par, bi ), i = 1, 2, 3, with the additional condition that there exists a position j such that {b 1 j , b2 j , b3 j } = {0, 1, 2} (i.e., all trits in this position are different); the success probability of B can be bounded from above as follows: pB ⩾ ε 3 − ε (17/27)δ/2 , and the running time of B does not exceed 4 tA, where tA is the time complexity of A. The lemma is then applied to the analysis of code-based signature based on Stern identification protocol in the (standard) SUF-CMA model (with the outer hash function modelled as a programmable random oracle). First, we show that the SUF-CMA model can be reduced to the NMA model (in which the adversary makes no sign queries, only random oracle queries), thanks to the zero-knowledge property of the original Stern identification scheme and the programmability of an oracle. We then show that in the NMA model we can restrict attention only to the case, where the adversary makes a single random oracle query. The b value from the forking lemma acts as the random oracle’s answer to the adversarial query. Using the lemma, we are able to fork the process of forging a signature. Having three valid signatures for the same message, we can to extract a secret key (or to find a collision of an inner hash function). Hence, we can bound from above the probability of successful forgery in terms of the probability of successful execution of collision finding and syndrome decoding algorithms.
Book review: Zarodova, Yu. P. & Devetiarova, I. G. (eds) (2021) Omsk Literary Avant-Garde of the 1920s. Poets of the Chervonnaya Troika: Poems. Omsk: Omskblankizdat
Authors: Erofeeva Natalia E. ,   Russian State Hydrometeorological University, Kipnes Ludmila V. ,   Russian State Hydrometeorological University
Published: May 2023

The article reviews the collected works of the poets of Omsk literary avant-garde of the 1920s, representatives of the Chervonnyaya Troika. For the first time, readers and experts have an opportunity to become acquainted with the previously unpublished verses and poems by 28 poets, for whom the period of Omsk was a landmark, which determined their life and creative path. The collection, which includes the poets’ photographs, biographical information, photocopies of individual autographs, documents and manuscripts, has become a notable phenomenon in the academic and cultural life. The material is attractive because of its novelty, thoughtfulness, and careful attention to sources. The introductory article focuses attention on important aesthetic issues of the works of Omsk futurist poets, such as L. Martynov, V. Shebalin, V. Ivanov, and others. A rather detailed article by Yu.P. Zarodova and I.G. Devetiarova, “Dreamers, Fantasists, Futurists …”, that opens the collection acquires academic significance. This work examines the history of the formation and development of the literary group Chervonnaya Troika in Omsk in the historical and cultural context of the time and cites responses published in newspapers, diaries and archival records of the group participants. Particularly significant among them are the notes of Anatoly Sorokin, who collected not only paintings, but also poems of writers who were part of the Chervonnaya Troika. Despite the loss of some autographs, most of them are preserved in his archive, which was used for compiling the collection. The material is structured in such a way that the reader receives full information about the poet, including photos and a brief biographical reference. Verses and poems are published, and commentaries specify dates of the first publications, give variants of texts and exact archival data with the indication of sources of poetic texts, which considerably raises the academic level of the collection. The chronological table of the literary life of Omsk in 1920–1928 and photographs of manuscripts and documents that greatly expand the idea of the literary phenomenon to which the collection is dedicated became a real decoration of the book. The book is useful, thoughtful and necessary for the modern researcher, student and reader because it clarifies the idea of the literary process in Russia in the early twentieth century, opens new names, includes Omsk avant-garde in the general context of aesthetic quests by poets, writers and artists of this period as an integral part.
National self-identification of the emigrant hero in the emigrant prose of Georgy Ivanov and Henry Miller. Article One: Loss of primordial national world and love
Authors: Nazarenko Ivan I. ,   Tomsk State University
Published: May 2023

The research material is Tropic of Cancer, a 1934 novel by the American novelist Henry Miller, and “Disintegration of the Atom”, a 1938 story by the Russian poet Georgy Ivanov. The aim of the article is to compare the plot situations of self-identification of emigrant heroes in terms of the manifestation of their national identity in order to understand how the problem of national selfidentification of a person of the modern era in exile is exacerbated. The first article draws attention to the stories of the central characters, to the difference in their way of life in emigration, their world relations, their love conflicts. The heroes are united by the formation of their national and personal identity in their native world and the identity crisis in a foreign environment (although it is not at the center of the narration). According to Miller, a person’s national identity is determined primarily by a biological factor (“blood”). An emigrant (more broadly, a modern person with a blurred national identity) is a voluntary exile who does not live the life offered by the community (clan, nation), but independently chooses a motherland, looking for one’s own value space. However, the change of national identity, according to Miller, is impossible. In the plot of the central character’s self-identification, his national identity is tested: he is approaching the discovery of his national (American) self-consciousness, although he remains in Paris. According to Ivanov, the national identity of a person, on the contrary, is associated with the native soil (territory) and culture, and separation from the soil creates a state of total disconnection from any matter. “Atom” is an emigrant who has broken away from the whole (Russia), retaining his national identity (although it is eroded in emigration), but doomed to a spiritual decay outside his homeland, in any foreign environment. The dominant traits of Americans that Miller’s hero rejects in himself and in others are optimism and pragmatism, the trait of a true American (himself) is vitality. The dominant features of the Russian national character are idealism and striving for the beyond (according to Ivanov and his hero, “metaphysical masturbation”). The love line is significant in the national self-identification of the heroes of Miller and Ivanov, since the nostalgic experiences of the heroes come down to the loss of their beloved, symbolizing the lost native world. In both works, the heroes’ attempts to overcome the memory of their beloved are given, both heroes unsuccessfully try to compensate for the unrequited feeling in relations with reduced substitutes for the beloved (mistress, prostitute). The destruction of the myth about a woman brings Miller’s hero closer to liberation, but Ivanov’s hero cannot exist without love and makes an existential choice of death.
Rating as a form of modeling the modern reading space
Authors: Donskova Yuliia V. ,   Sechenov First Moscow State Medical Universit, Kurilova Anna D. ,   Sechenov First Moscow State Medical University
Published: May 2023

Reading is a multidimensional phenomenon, being not only a tool for receiving information about the world, but also an instrument of ethical and aesthetic education, a way of spending leisure time. The volume of reading characterizes the personality, indicates erudition, interests, and behavioral features. In ancient times books were available to the few, and the attitude towards them was serious. In antiquity it was recommended to confine oneself to a few selected authors and re-read them. After the invention of book printing, reading gradually losst its elitist character, the book became the most important source of information. In modern society the spread of the Internet and digital technologies has led to a decline in the popularity of traditional reading. The opportunity to obtain compressed information from the Internet and the feeling of accessibility of any information without the need to comprehend and memorize it change the structure of cognitive processes, tune the brain to assimilate ready-made forms, resulting in a loss of interest in reading and an increase in functional illiteracy. It is all the more important to maintain interest in reading, to form the need for it, to draw attention to the best classical and contemporary works. This is the goal of various ratings that are regularly published in print and online publications. They come in two varieties: sales ratings and stimulant ratings. The former reflect the requests of readers, the latter model these requests. Sales ratings record the emergence of interest in a particular book, which can be caused by various factors, for example, the appearance of a film adaptation or the occurrence of situations in real life similar to those described in the book. Stimulant ratings aim to introduce the reader to the type of serious, focused and complicated reading with the help of modern tools: catchy titles resembling advertising slogans, appeals to prestige, the use of debitive and imperative modality. Stimulant ratings are published in quality press and other responsible media, and their influence on the formation of readers’ preferences is undoubtedly great. They perform informative, advertising, educational functions. Introduction to the culture of reading is a socially significant problem. To a certain extent ratings help to solve it. Their role in the modern digital society focusing on the rapid acquisition of compressed information is to form the need for reading, to promote books worthy of attention and to model the reading space.
Iatrogenic Venous Air Embolism (VAE) in a patient secondary to contrast injection; a rare case
Authors: Ramsha Fatima Qureshi , Raisa Altaf , Faiza Hassan , Nimra Ali , Hina Naseer , Syeda Baneen Fatima
Published: May 2023

Venous Air Embolism (VAE) can occur in patients while injecting contrast material, we have reported a case of a 26 yrs old patient who came with the complaint of abdominal pain, vomiting, and fever with no known Co-morbid. CT whole abdomen with contrast was performed and the patient was injected with contrast, which resulted in an air embolism. On administration of contrast, air is seen in the hepatic vein which was not seen on plain and delayed images. 93 ml of contrast material was intravenously injected by hand and followed by a drip infusion of 100 ml of contrast material.
FORMAÇÃO DE PROFESSORES INDÍGENAS NO BRASIL: CONSOLIDAÇÃO DE UMA PROPOSTA INTERCULTURAL NO ENSINO SUPERIOR
Authors: Cubides Sánchez Laura Marcela , Fernandes Leal Fabiana Soares
Published: May 2023

Desde a Constituição da República Federativa do Brasil de 1988, ampliou-se e aprofundou a gestão das instituições governamentais responsáveis pelo acompanhamento dos povos indígenas, nos programas de fortalecimento, visibilidade e integração de seus valores socioculturais ao projeto nacional. Portanto, reuniões com autoridades tradicionais, funcionários públicos e pessoas externas interessadas em contribuir aos processos comunitários, começaram a ocorrer com mais frequência e intensidade. Como resultado dessas lutas e parcerias, no início deste milênio, surge a iniciativa de criar cursos de graduação em várias universidades públicas federais e estaduais do país para a profissionalização de indígenas que atuam como professores em suas respetivas comunidades. Estes programas foram denominados “Licenciaturas Interculturais” e estão desenhados exclusivamente para atender as demandas territoriais e educacionais das populações indígenas, através do fortalecimento da prática docente nas escolas de ensino básico. A partir de uma revisão bibliográfica, este artigo se propõe expor uma análise crítica, com base em discussões de caráter cultural e político, da proposta intercultural para a formação de professores indígenas, contemplando os potenciais e os desafios que ela apresenta, desde sua criação até o presente. Os resultados nos levam a afirmar que tais cursos do ensino superior atendem alguns dos valores que aparecem no discurso oficial, mas não conseguem uma verdadeira dinâmica intercultural, o que nos permite desconstruir a legitimidade do conceito e questionar sua aplicabilidade.
Körforgásos gazdasági modell alapú városkoncepció, különös tekintettel a kis- és középvárosokra
Authors: Németh Kornél , Bai Attila , Dobozi Eszter , Gabnai Zoltán , Péter Erzsébet
Published: May 2023

A városoknak nemcsak a lakossága, hanem a környezetvédelemben és energiagazdálkodásban játszott szerepe is évről évre nő. Ez a tendencia Magyarországra fokozottan igaz, az urbanizációban élő népesség globális átlagot nagymértékben meghaladó aránya miatt. Jogi szempontból a fenntarthatóság terén a helyi önkormányzatok jelenleg önálló hatáskörrel alig rendelkeznek, többnyire csak indirekt módon képesek befolyásolni ezen folyamatokat. A cikkünkben elemzett kis- és középvárosok helyzete több szempontból különbözik a nagyvárosoktól: a fenntarthatósági problémák kisebbek, viszont kezelésükre kevesebb forrás áll rendelkezésre és a körkörös gazdálkodásról meglévő ismeretek is többnyire hiányosabbak.
Tanulmányunkban az urbanizációval, a kis- és középvárosok jellemzőivel, a bennük alkalmazható körforgásos gazdasági lehetőségekkel foglalkozunk, röviden bemutatunk néhány jó gyakorlatot és saját kutatásaink alapján a körforgásos gazdaság helyi kialakításához szükséges beavatkozások típusait, szintjeit, pilléreit, sorrendiségét, valamint alapelemeit. Ezek megfelelő szintű és egymásra épülő alkalmazása úgy véljük, hogy lehetővé teszi előbb a körforgásos gazdálkodás megalapozását, ezt követően a kialakított rendszer fenntartását, végül a település lakóinak, vállalkozásainak, esetleg külső szereplők támogatását is.
History of Formation and Development of Legal Regulation of the National Payment System of the Russian Federation
Authors: Abdullayeva Z. Yu.
Published: May 2023

The paper examines the history of the formation and development of legal regulation of the national payment system. The author highlights that, despite the fact that the concept of the national payment system at the legislative level has been consolidated quite recently, it began to form long before the relevant law was passed. The development of the national payment system is mediated by the formation of a system of financial institutions responsible for payments (settlement (clearing) chambers, credit institutions, etc.), the evolution of payment forms, as well as the introduction of technologies capable of processing mass payments. It is noted that the rapid economic growth characteristic of the beginning of the 20th century resulted in the appearance of the first forms of relatively mass non-cash payments during the pre-revolutionary period, which was also facilitated by the development of bank offices and the emergence of telegraphic communications. In the early years of the Soviet government, the payment infrastructure was nationalized, which became an important factor in strengthening the administrative and command economy. The modern period of development of the legal regulation of the national payment system is characterized by the adoption of the fundamental law regulating the relevant sphere of public relations, as well as the presence of an extensive system of subordinate regulatory legal acts, differentiation of approaches to legal regulation of various payment systems, taking into account the best foreign practices in this area, an effective system of supervision and supervision of the participants of the national payment system.
Moral Categories in Russian Criminal Law
Authors: Grigoriev P. A.
Published: May 2023

The paper studies the forms of interaction between criminal law and moral ethical prescriptions as two systems that regulate the behavior of subjects of public relations. The study made it possible to establish that at present there are five main forms of implementation of moral and ethical categories in the criminal law of the Russian Federation. First, the norms of morality are embodied through the institution of the principles of criminal law. Analyzing the principle of justice, the author describes in detail the relationship under study. Secondly, certain moral prescriptions have been transformed into criminal law prohibitions and are currently legitimized in the dispositions of the Criminal Code of the Russian Federation. Particular attention is given to the historical transformation of the moral and ethical norm into the norm of the criminal law. Thirdly, the criminal law directly protects public relations regarding public morality and morality, which is enshrined in Ch. 25 of the Criminal Code of the Russian Federation. Fourth, the assessment of the morality (immorality) of the behavior of victims of individual crimes affects the classification of crimes and the imposition of punishment. The materials of investigative and judicial practice are considered, in which law enforcement agencies assessed the immoral behavior of crime victims. Fifthly, the relationship between moral and ethical standards and the system of criminal law is found in the fact that almost all existing criminal law prohibitions were socially and historically determined by the requirements of morality and ethics. At the same time, it was established that there are both purely moral criminal law prohibitions, such as prohibitions on appropriation of someone else’s property or deprivation of life, and criminal law prohibitions based on morality, but significantly modified in the course of social development (crimes in the field of economic activity, computer crimes and others).
Legal Regulation of Technological Connection of Microgeneration Facilities to Electric Networks: Legislative Adjustment and Process Optimization
Authors: Skrypnik D. Yu.
Published: May 2023

In Russia, the possibility of supplying energy to consumer property complexes through microgeneration devices has been used since 2021. The study is devoted to the problems of legal regulation of technological connection of electric power microgeneration facilities. In the process of analysis, the author considers the types and methods of connection of consumer property complexes to microgeneration facilities provided for by law. As a result of the study, a contradiction was revealed between the norms of civil legislation and the Rules for technological connection, which make connection of microgeneration facilities in buildings impossible. In addition, a number of legal inaccuracies in the connection procedures were disclosed, which interfere with the full implementation of the technological connection of microgeneration facilities. The author proposes, by clarifying the legislation, to make changes to the current organizational mechanism for energy supply of consumer property complexes by means of microgeneration devices.
The SsPmp phase in regional wave propagation
Authors: Langston Charles A.
Published: May 2023

Regional broadband waveforms of deep- and intermediate-depth earthquakes written at College, Alaska, and Matsushiro, Japan, show large SsPmp phases that may be the largest phase seen on the seismogram. SsPmp is created when the direct, upgoing SV wave converts to a P wave at the free surface and subsequently becomes trapped in the crust because of postcritical P-wave reflection at the Moho. SsPmp may arrive between the P- and S-wave phases or it may arrive after S, depending on source depth and distance. Thus, it can be used as an additional constraint on source depth and location. It is important to recognize the existence of this phase since it is easily confused with the S-wave arrival, resulting in erroneous S-wave arrival time picks, or it may be interpreted as a split shear wave, incorrectly implying shear-wave anisotropy in the medium. Such a wave propagation effect will also be important for a crustal source for structures that contain low-velocity layers near the surface.
EFFECT OF CUTTING EDGE PREPARATION TECHNOLOGIES ON SURFACE ROUGHNESS, PROCESSING TIME AND K- FACTOR
Authors: SLANINKOVA ANETA ,   Department of Machining, Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB – Technical Univesity of Ostrava, JANSA JAN , JANECZKO RADIM , MRKVICA IVAN , PAGAC MAREK , JURGA TIBOR ,   Department of Machining, Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB – Technical Univesity of Ostrava,   Department of Machining, Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB – Technical Univesity of Ostrava,   Department of Machining, Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB – Technical Univesity of Ostrava,   Department of Machining, Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB – Technical Univesity of Ostrava,   Department of Machining, Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB – Technical Univesity of Ostrava
Published: May 2023

The geometry of the cutting tool is a crucial factor in its life and performance during the cutting process. In particular, the micro-geometry of the tool, which defines the shape of the cutting edge, has a significant effect on plastic deformation, heat generation, and cutting tool life. This article compares three technologies for removing material from cutting tools: wet blasting, dry blasting, and brushing. The focus was on measuring the processing time for each technology to determine its productivity and processing the cutting edge to a specific value. The surface roughness parameters Ra and Rz on the cutting edge were also measured. The K-factor parameter was monitored for the repeatability of the cutting edge process. The results of the experiment indicate that selecting the appropriate cutting edge technology can positively impact both the productivity and roughness of the tool edge.
EXPERIMENTAL VERIFICATION OF PROCESS PARAMETERS INFLUENCING THE MECHANICAL PROPERTIES OF M300 IN THE SLM PROCESS
Authors: BLAHA ROMAN ,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava, KRISAK DOMINIK , HAJNYS JIRI , MESICEK JAKUB , PAGAC MAREK , JANCAR LUKAS , JANSA JAN , POSMYKOVA ELISKA , GAZDA MAREK ,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava,   Department of Machining Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB -Technical University of Ostrava
Published: May 2023

The main goal of this paper is to present the results of experimental verification of process parameters affecting mechanical properties of M300 material in the Selective Laser Melting (SLM) process. To obtain the values of mechanical properties, the samples were subjected to tensile testing, where the force, and elongation values were obtained. Therefore, from these values, the values of yield strength, elastic modulus, force and stress at the interface, tensile strength were then derived. It was also possible to construct tensile test F - ∆L: force-elongation diagrams for all specimens, and to construct an R – Ɛ: stress-strain dependency diagram using the calculation of the original area and original length of the specimen. As a result of this work, mechanical property diagram was produced as a function of the process parameters used, showing which parameters most appropriate for the desired properties on the Renishaw AM400 printer.
Sentiment Analysis of Amazon Product Reviews using Supervised Machine Learning Techniques
Authors: Sultan Naveed
Published: May 2023

Today, everything is sold online, and many individuals can post reviews about different products to show feedback. Serves as feedback for businesses regarding buyer reviews, performance, product quality, and seller service. The project focuses on buyer opinions based on Mobile Phone reviews. Sentiment analysis is the function of analyzing all these data, obtaining opinions about these products and services that classify them as positive, negative, or neutral. This insight can help companies improve their products and help potential buyers make the right decisions. Once the preprocessing is classified on a trained dataset, these reviews must be preprocessed to remove unwanted data such as stop words, verbs, pos tagging, punctuation, and attachments. Many techniques are present to perform such tasks, but in this article, we will use a model that will use different inspection machine techniques.
Fish Image Classification Using Adaptive Learning Rate In Transfer Learning Method
Authors: Suhana Rizka , Mahmudy Wayan Firdaus , Budi Agung Setia
Published: May 2023

The existence of fish species diversity in coastal ecosystems which include mangrove forests, seagrass beds and coral reefs is one of the benchmarks in determining health in coastal ecosystems. It is certain that we must maintain, preserve and care for so that conservation efforts need to be carried out in water areas. Many experts at the Indonesian Fisheries and Marine Research and Development Agency often classify fish images manually, of course it will take a long time, therefore with today's developments they can use the latest technology.  One of the reliable techniques in terms of image classification is Convolutional Neural Network (CNN). As time goes by, of course, many people want fast learning and solving new problems faster and better, so transfer learning appears, which adopts part of CNN, the name is modified convolution layer. Observing the needs of experts in the field of marine conservation, the researchers decided to solve this problem by using transfer learning modifications. The transfer learning used is an architectural model from the pre-trained Mobilenet V2, which is known for its light computing process and can be applied to our gadgets and other embedded tools. The research image data used is 49.281 data of various sizes and there are 18 types of fish, in the pre-processing data there is a resize of the image to a size of 224x224 pixels. testing with the modified transfer learning architectural model obtained an accuracy score of 99.54%, this model is quite reliable in classifying fish images.
Human Facial Expressions Identification using Convolutional Neural Network with VGG16 Architecture
Authors: Latumakulita Luther Alexander , Lumintang Sandy Laurentius , Salakia Deiby Tineke , Sentinuwo Steven R. , Sambul Alwin Melkie , Islam Noorul
Published: May 2023

The human facial expression identification system is essential in developing human interaction and technology. The development of Artificial Intelligence for monitoring human emotions can be helpful in the workplace. Commonly, there are six basic human expressions, namely anger, disgust, fear, happiness, sadness, and surprise, that the system can identify. This study aims to create a facial expression identification system based on basic human expressions using the Convolutional Neural Network (CNN) with a 16-layer VGG architecture. Two thousand one hundred thirty-seven facial expression images were selected from the FER2013, JAFFE, and MUG datasets. By implementing image augmentation and setting up the network parameters to Epoch of 100, the learning rate of 0,0001, and applying in the 5Fold Cross Validation, this system shows performance with an average accuracy of 84%. Results show that the model is suitable for identifying the basic facial expressions of humans.
Derechos Fundamentales y Libertades Públicas en Roma y en la Actualidad
Authors: Cuena Boy Francisco , Ludeña Manco Diego Conrado
Published: May 2023

El objetivo fue determinar el concepto actual de derechos fundamentales y libertades públicas y las razones por las que no fueron directamente aplicables a la experiencia jurídico-política antigua; asimismo, los límites dentro de los cuales resulta posible la comparación entre Roma y la actualidad en materia de derechos fundamentales y libertades públicas. De otro lado, la comparación en el plano de los derechos más propiamente políticos, a los que se da esta nomenclatura distinguió la esfera de la vida privada del ciudadano y la virtud cívica y los intereses personales de realización del ser humano en la comunidad. El método fue histórico desde la redacción de un manuscrito original bajo el méotodo exegético y dogmático de tipo básico y deductivo. De los resultados una comparación sistemática y exhaustiva entre la Roma republicana y nuestra situación actual, en el tema de los derechos fundamentales y las libertades públicas, fue escasamente viable. En cambio, la comparación puntual entre derechos y libertades concretas, delimitado por los “derechos y libertades” del paterfamilias romano, en el contexto de los derechos económicos, sociales y culturales fue completamente ajena a la mentalidad romana. Se concluye que, existe marcada reflexión sobre los límites dentro de los cuales resulta posible la comparación entre Roma y la actualidad en materia de derechos fundamentales y libertades públicas y las razones por las que no es directamente aplicable a la experiencia jurídico-política antigua.
Ems, Virtually Amish: Preserving Community at the Internet’s Margins
Authors: Mast Gerald J. , Riehl Benuel , Wesner Erik
Published: May 2023

No abstract available.
The Influence of Fiber Treatment and Matrix Type on the Impregnation Quality of Carbon Fiber Reinforced Thermoplastics
Authors: Budiyantoro Cahyo , Sosiati Harini , Syahputra Kevin Atila , Sudarisman Sudarisman
Published: May 2023

One of the main issues with Carbon Fiber Reinforced Thermoplastics (CFRTP) is the poor impregnation quality of the matrix on carbon fiber due to the high viscosity of the thermoplastic. Impregnation quality can significantly affect the mechanical properties of the composite. This study aims to compare the impregnation abilities of various types of thermoplastic matrices on carbon fiber. The matrices used in this study are HDPE, PC, and PET. Three variations of carbon fiber treatment were employed: the first variation involved immersion in liquid nitrogen at -196°C, the second variation included heating in an electric furnace at 600°C followed by rapid cooling in liquid nitrogen, and the third variation utilized treatment with a silane coupling agent. The research findings demonstrate that composites comprising a Polycarbonate matrix and carbon fiber reinforcement, treated with a silane coupling agent, exhibit superior impregnation quality, as evidenced by an Interfacial Shear Strength (IFSS) value of 9.34 MPa.. The lowest impregnation quality was observed in HDPE reinforced with carbon fiber that had been heated and rapidly cooled, with an IFSS of 5.52 MPa.
Pattern and trends of respiratory diseases in an outpatient setting: a five-year review in a tertiary hospital in South-South, Nigeria
Authors: Emorinken Airenakho , Agbadaola Oluwaseun R. , Akpasubi Blessyn O. , Ugheoke Asuwemhe J. , Dic-Ijiewere Mercy O. , Izirein Hannah O. , Ibeji Chidinma U. , Barrah John C. , Irumudomon Jessy G.
Published: May 2023

Background: Limited information exists on the epidemiology of respiratory diseases in South-South Nigeria, especially regarding changing risk factors. This study aimed to assess the frequency and pattern of respiratory diseases in an adult outpatient clinic in a teaching hospital in South-South Nigeria.
Methods: Medical records of newly referred patients with respiratory diseases who received care at the chest clinic of Irrua Specialist Teaching Hospital from January 2018 to December 2022 were retrospectively reviewed.
Results: The study included 655 patients (mean age: 54.7±18.7 years). The majority of cases occurred in the 41-60 age group, and 55.4% were female. Non-communicable respiratory diseases accounted for 60.9% of cases, while communicable respiratory diseases accounted for 39.1%. The most common respiratory diseases observed were bronchial asthma (22.6%), tuberculosis (21.1%), chronic obstructive pulmonary disease (19.2%), pneumonia (11.1%), interstitial lung diseases (6.7%), and lung cancer (4.1%). Less common respiratory diseases included pulmonary aspergilloma (1.5%), pleural-related diseases (0.8%), hypersensitivity pneumonitis (0.8%), and obstructive sleep apnoea syndrome (0.6%). The study's annual trend showed a gradual increase in the number of respiratory cases, reaching a low point in 2020. Significant differences were found in the age and gender distribution of the top six respiratory diseases (p <0.001).
Conclusions: This study provides valuable insights into the demographic and disease patterns of respiratory diseases in an outpatient setting, informing targeted prevention and treatment measures for these conditions.
Association of serum uric acid level with angiographic severity of coronary artery disease: a study in a tertiary care hospital, Chittagong, Bangladesh
Authors: M. Ismail Khondaker , Kumar Das Prabir , Awal Anisul , Das Saurav , Latif Sayem Bin , Bashiruddin M. A. B. K. , Hasan M. Mehadi , Easmin Eva Tania , Hossan M. Sawkat , Bhattacharyya Partha
Published: May 2023

Background: Coronary artery disease (CAD) is a major global health issue. Serum uric acid (SUA), a byproduct of purine metabolism, is linked to CAD development and progression. Elevated SUA levels are an independent risk factor for cardiovascular mortality and may indicate endothelial dysfunction. The aim of the study was to the observed associate serum uric acid level with the angiographic severity of CAD.
Methods: This observational study was conducted at Chittagong medical college hospital in Bangladesh from October 2020 to September 2021. It included 130 patients and used unpaired t-tests to analyze the association between serum uric acid level and angiographic severity of CAD patients. Ethical clearance was obtained from the institutional review board of Chittagong medical college and hospital.
Results: A study of 130 patients found a significant relationship between serum uric acid (SUA) levels and CAD (CAD), vessel involvement, and CAD severity (p=0.001). Patients with CAD had higher SUA levels (mean 5.26±1.32 mg/dL) compared to those without CAD (mean 4.22±1.03 mg/dL). A SUA level range of 3.94-6.58 mg/dL was associated with CAD presence. Gender also showed a highly significant association with SUA levels (p=0.001), while age, BMI, and smoking status did not show significant differences.
Conclusions: A strong positive association has been found between serum uric acid level and the severity of CAD. The findings of this study approve the effectiveness of hyperuricemia as an emerging risk factor for CAD.
Study factors associated with poor glycemic control in type 2 diabetes mellitus patients in tertiary care center
Authors: Mathuriya Anita , Abbas Shahid
Published: May 2023

Background: Poor glycemic control is a major public health issue among patients with type 2 diabetes mellitus and a significant risk factor for the progression of diabetic complications. This study aimed to assess the magnitude and contributing factors of poor glycemic control among type 2 diabetes patients.
Methods: A cross-sectional study was conducted among 150 type 2 diabetes patients a sample of 150 type 2 diabetics of both sexes was obtained diabetes in medicine OPD, any type 2 diabetes patient at the healthcare facilities over the age of 18 was eligible to participate in the study.
Results: Of the 150 type 2 diabetes patients included in the study, 118   had poor glycemic control. Mean age was 59.67 (SD = 9.617) years; 115 (76.9%) of them were men. Most patients [n = 62 (41%)] used insulin or oral anti-diabetics as monotherapy [n = 32 (21%)] to regulate their blood sugar levels. The glycemic control got worse the longer the patient had diabetes, from 5 to 10 years (OR = 1.74) to more than 10 years (OR = 2.55), compared to patients with less than 5 years of illness. In comparison to patients with co-morbidity, patients without co-morbidity had significantly better glycemic control (OR=1.56).
Conclusions: Gender, age, BMI, occupation, medical history, medication history, triglycerides, HDL, duration of diabetes, type and number of diabetes medications, and HbA1c were significantly associated. These factors can identify patients at risk of poor glycemic control, allowing targeted interventions for optimal outcomes. Adherence, physical activity, diabetes education, and training affect glycemic control, but this study did not.
An in vitro study of probiotic activity exhibited by Lactobacillus acidophilus and Lactobacillus rhamnosus on oral isolates of Streptococcus mutans and Candida albicans
Authors: Naushad Ameena M. , Sunil Jenny M. , Kumar K. S. Harish , Sathar Sajimi , Mathews Roopa , Gopal Anila
Published: May 2023

Background: Oral infections caused by microorganisms have led to increased risk of oral health problems like dental caries (DC). Streptococcus mutans and Candida albicans are the organisms responsible for DC. The goal of the presented study was to investigate the potential of probiotics to prevent and treat DC. An in vitro assay was developed to investigate several probiotic strains for their ability to inhibit the aforementioned oral pathogens.
Methods: 40 oral isolates of Streptococcus mutans and 51 oral isolates of Candida albicans were tested for probiotic activity against Lactobacillus acidophilus and Lactobacillus rhamnosus using agar overlay interference technique as prescribed by Fleming et al.
Results: The zone of inhibition shown by L. acidophilus was higher than L. rhamnosus against Streptococcus mutans and Candida albicans.
Conclusions: In conclusion the two probiotic strains L. acidophilus and L. rhamnosus exhibited inhibitory activity on S. mutans and C. albicans respectively in vitro.
Correlation between length of tibia and dimensions of distal articular surfaces: a morphometric study
Authors: Pandit Falak S. , Fayaz Uroosa M. , S. Itoo Mohammad , Rather Rouf H. , Bhat Ghulam M.
Published: May 2023

Background: Estimation of stature can be done from long bones especially tibia and femur as they have a correlation with height. Tibia is most commonly used as it resists erosion and keeps its anatomical shape even after burial. However intact bones are rarely available. Most often the exhumed remains are in fragmentary condition leading to lack of adequate sample for the study. A way of increasing utility of such samples would be the establishment of techniques which would permit estimation of stature from long bone fragments. The current study provides a correlation between length of tibia and its distal dimensions which can be used in anthropology for measuring the stature of an individual.
Methods: A total of 50 tibiae were obtained from the bone bank of the Department of Anatomy, Government Medical College, Srinagar. Measurements were taken from the bone using vernier calipers. Morphometric data obtained was analyzed, measurements expressed in mean and standard deviation and Pearson’s correlation test was carried out. This observational study was conducted within a period of 2 months, from April-June 2022.
Results: Width of talar facet with a Pearson’s correlation of 0.62 and width of fibular notch with a correlation of 0.3 showed positive statistical significance (p<0.05). On the other hand, breadth of medial malleolus with a correlation of 0.18 and height of fibular notch with a correlation of -0.02 (p>0.05) was statistically insignificant.
Conclusions: The study showed a positive correlation (p<0.05) between length of tibia with the width of talar facet and fibular notch.