bluuebunny/crossref_metadata_2025 huggingface dataset:
A Review of Evaluation of Cement Concrete by Partial Replacement of Natural Sand
Authors: Isal Chetan D.
Published: March 2023

Abstract: Although fly ash as a partial replacement for cement has been utilized for many years, it has been almost exclusively used in low-volume percentages, such as 10 or 20% cement replacement. In this study partial replacement of Natural sand with Crushed stone waste for M 15 grade of concrete. The compressive strength of concrete of OPC concrete and with natural sand and Crushed stone waste is compared and it has been found that the strength of concrete got increased. Work may be extended with use of stone waste from different crushing plant. Different zones of stone waste can be formed from the result which will give better understanding of type of stone waste that can be replaced for each zone. Thus it can be concluded that use of stone dust can be effectively done for partial replacement of natural sand and better concrete can be achieved for structural use. Optimum replacement value is about 30 to 40 percent. Thus its use will also ensure less cost and use of waste material causing less environmental pollution.
Noise and Vibration Analysis of Diesel Engine fueled using Diesel and Neem Biodiesel with Inclusion of MoO3 Nano Particles
Authors: Peddinti Santosh , Reddy P Srinivasa , Timothy P
Published: March 2023

Abstract: Biodegradable, renewable, and environmentally friendly oxygenated fuels will replace fossil fuels. A single-cylinder, four-stroke, variable compression ratio, compression ignition engine was tested for performance, combustion, emission, and vibration. Biodiesel from inedible neem, which contains 30–45% wt oil, may replace traditional liquid fuels. This work esterified and transesterified methanol and triglycerides at a 7:1 molar ratio to extract biodiesel at 96% volume. This research uses diesel and neem methyl ester (NME) at 50, 75, and 100 ppm. Engine testing at 1500 rpm and 15:1 compression ratio are performed under various loading circumstances. The vibration levels were reduced for 75 ppm inclusion of MoO3 in biodiesel blends when compared with diesel fuels. As the load increased vibrations observed were at maximum.
AI-Based Virtual Assistant Using Python: A Systematic Review
Authors: Manojkumar Patil Kavita , Patil Aditi , Shinde Sakshi , Patra Shaktiprasad , Patil Saloni
Published: March 2023

Abstract: A software agent that will carry out tasks or provide services in response to a user's privately supported instructions or inquiries is known as an intelligent virtual assistant (IVA) or intelligent personal assistant (IPA). A virtual assistant capable of being accessed via web chat is sometimes called a "chatbot." Online chat systems can occasionally only be used for amusement. Some virtual assistants are equipped to comprehend spoken language and answer with synthetic voices. Users can use voice commands to manage other basic chores like email, to-do lists, and calendars in addition to asking their assistants questions, controlling home automation devices, and controlling media playing. One of the best applications of artificial intelligence is the virtual personal assistant (VPA), which offers a new way for people to delegate tasks to machines. To create a Virtual Personal Assistant (VPA) and use it in various software applications, certain approaches and principles are used. To enable users to communicate with virtual assistants, speech recognition systems—also known as Automatic Speech Recognition, or ASR—play a crucial role.
Design and Analysis of Steel Leaf Spring and Composite Leaf Spring using Finite Element Method Approach
Authors: BT Dr. Manjunath , SP Hineeth Kumar
Published: March 2023

Abstract: The leaf spring's purpose is to stabilize the vehicle because it’s an essentially required element for the suspension systems and assists in supporting the entire load on the vehicle. Hence, the design and analysis of leaf springs are the main focus of this study. To that aim, the CATIA V5 software is used to construct the model, and Ansys Workbench is used to perform static structural analysis. First, the solution is verified using the analytical method and the finite element analysis for structural steel, and then the static structural analysis of structural steel and composite material (CFRP) is compared for the same design. Here, we find that the deformation and stress values of the Composite material are less than that of structural steel.
A Review on Strategies to Reduce Fuel Consumption in Different Phases of Flight
Authors: Kurdekar Mr. Mahendra
Published: March 2023

Abstract: Fuel consumption is a critical aspect of aviation that directly impacts the cost, safety, and environmental impact of air travel. Aircraft require significant amounts of fuel to power their engines and maintain their altitude and speed during flight. Therefore, optimizing fuel consumption is a key priority for airlines, pilots, and aviation engineers. By understanding the factors that affect fuel consumption airlines can develop fuel-efficient flight plans and operational procedures that reduce costs and minimize the environmental impact of air travel. Research on ways to reduce fuel consumption are ongoing and lots of investment and research is required to improve the efficiency and sustainability of air transportation. In this review paper we will be discussing the ways airlines can reduce overall fuel burn in different phases of flight by using certain methods and procedures.
PREVALENCE OF SALMONELLA AND INTESTINAL PARASITES AMONG FOOD HANDLERS PREDISPOSE CONSUMERS TO SIGNIFICANT HEALTH RISKS
Authors: Al-Ghaithi Gamil Amin Abdulla Ali , Al-Moyed Khaled Abdulkareem , Al-Shamahy Hassan Abdulwahab , Al-Haddad Ahmed Mohamed
Published: March 2023

Background and objectives: Food borne diseases are a global public health problem and food handlers play a major role for the transmission of food borne diseases. This study was aimed at exploring the prevalence of intestinal parasites, Salmonella typhi carrier rate and risk factors of infection with typhoid and/or intestinal parasites among food handlers at Ibb city, Yemen.
Subjects and methods: A cross sectional survey was conducted among three hundred and fifteen food handlers, in age ranges from 14 to 65 years. All individuals were working in restaurants, cafeterias or school buffets in Ibb city. For collecting data; a pre-tested structured questionnaire was used. Stool samples were examined for intestinal parasites microscopy and for S. typhi by stool culture media and blood for detection antibodies per the standard laboratory methods were used.
Results: A total of 315 food handlers in Ibb city over a 12-month period were enrolled in this study, ages ranged from 14 to 65 years, with a mean±SD age of 31.2±11.9 years. The highest prevalence of antibodies against S. typhi antigen suspension O was 18.4%, while antibodies against S. typhi H antigen suspension were 7.6%. Also, the positive rate for total S. typhi antibodies ELISA IgG was 9.5% and the positive rate for S. typhi stool cultures was 7.3%.  The overall prevalence of intestinal protozoa was 20%, the most intestinal parasitic prevalent was Entamoeba histolytica (15.6%), followed by Ascaris lumbricoides (12.1%), Hymenolepis nana (4.4%), and Schistosoma mansoni (3.2%).
Conclusion: Inexperienced and poor personal hygienic food handlers play a role in the transmission of food-borne infections. Local health authorities should implement food handlers training on food safety, institute periodic focused medical check-up for food handlers and improve human waste disposal.
                        
Peer Review History:
Received: 4 January 2023; Revised: 13 February; Accepted: 8 March 2023, Available online: 15 March 2023
Academic Editor: Dr. A.A. Mgbahurike, University of Port Harcourt, Nigeria, amaka_mgbahurike@yahoo.com
Received file:                             Reviewer's Comments:
Average Peer review marks at initial stage: 5.5/10
Average Peer review marks at publication stage: 7.0/10
Reviewers:
Rola Jadallah, Arab American University, Palestine, rola@aauj.edu
Dr. Tamer Elhabibi, Suez Canal University, Egypt, tamer_hassan@pharm.suez.edu.eg
Dr. Wadhah Hassan Ali Edrees, Hajja University, Yemen, edress2020@gmail.com
Dr. Rawaa Souhil Al-Kayali, Aleppo University, Syria, rawah67@hotmail.com
Similar Articles:
EVALUATION OF ANTIBACTERIAL RESISTANCE OF BIOFILM FORMS OF AVIAN SALMONELLA GALLINARUM TO FLUOROQUINOLONES
RECURRENT TEMPOROMANDIBULAR JOINT ANKYLOSIS AMONG YEMENIS: A PROSPECTIVE STUDY
Authors: Da'er Sam Abd Alkarem , Farhan Abdullah Hassan , Nasher AkramThabet , Alareqi Naif Rasheed , Juain Ali Abdulwahed
Published: March 2023

Background and aims: Recurrence of ankylosis is one of the most common complication following surgery especially during gap arthroplasty without interposition material. The main aim of these current study was to obtain a comparison between three different methods in prevent of recurrent temporomandibular joint ankylosis.
Methods: A number of 15 patients with (2-22 years) age ranged between were obtained from those attending to Al-kawait Hospital, clinic of Oral and Maxillofacial Surgery Department, Sana’a University, Yemen. All patients in the present study that have ankylosis in the temporomandibular joint (TMJ) were included in period time from March 2017 to April 2020. the temporomandibular joint ankylosis Diagnosis was obtained through history of a chief complain, medical history, clinical and radiographic examinations.  All patients were divided into three groups based on the type of treatment.
Results: No any signs of surgical site infection in or around the incision. In group I:  three cases of recurrence ankylosis were happened, while one case was dislodging of cartilage from harvested rib in group II. However, in group III, there were no complications observed after the end period of follow-up.
Conclusion: The most effective procedure to prevent recurrence of temporomandibular joint ankylosis was the temporalis fascia as interpositional material, also produce a good esthetic and function results.
                       
Peer Review History:
Received: 25 December 2022; Revised: 8 February; Accepted: 5 March 2023, Available online: 15 March 2023
Academic Editor: Dr. Asia Selman Abdullah, Pharmacy institute, University of Basrah, Iraq, asia_abdullah65@yahoo.com
Received file:                             Reviewer's Comments:
Average Peer review marks at initial stage: 6.0/10
Average Peer review marks at publication stage: 7.0/10
Reviewers:
Dr. Tamer Elhabibi, Suez Canal University, Egypt, tamer_hassan@pharm.suez.edu.eg
Dr. Bilge Ahsen KARA, Ankara Gazi Mustafa Kemal Hospital, Turkey, ahsndkyc@gmail.com
Similar Articles:
HISTOLOGIC AND RADIOGRAPHIC STUDY OF PATHOLOGIC CHANGE IN COMPLETE IMPACTED THIRD MOLARS DENTAL FOLLICLES
PREVALENCE OF SIGNS OF TEMPOROMANDIBULAR DISORDERS IN HEALTHY ASYMPTOMATIC COMPLETELY EDENTULOUS INDIVIDUALS AND THE EFFECT OF DENTURE ON TEMPOROMANDIBULAR DISORDERS
Authors: Al-Khorasani Maha'a A. M. , Al-Kebsi Abbas M , Al-Hammadi Maged Sultan , Al-hamzi Amani Hussein Y , Al-Sanabani Nesreen F. , AL-Haddad Khaled A , Al-Najhi Mohammed Mohammed Ali , Al-Shamahy Hassan Abdulwahab , Al-Kibsi Taghreed Ahmed M
Published: March 2023

Background and objectives: Temporomandibular disorders (TMD) are a multi-factorial issue characterized by signs and symptoms that eventually restrict or may impede an edentulous patient’s physiological activity. The current study aimed to ascertain the prevalence of TMD among edentulous individuals, and their association with risk factors such as gender, age, educational level, habitual Khat chewing, economical status, duration of edentulousness, the age, and vertical dimension of occlusion (OVD) of the present dentures.
Materials and Methods: This study involved a thorough evaluation of 400 edentulous Yemeni patients who were undergoing prosthetic treatment at the Faculty of Dentistry Sana'a University and the University of Sciences and Technology, 114 with denture and 286 without denture. This evaluation of TMD signs and symptoms was performed using the Helkimo index. The outcomes were analyzed by correlating the research variables and the prevalence of signs and symptoms of TMD using chi-squared tests.
Results: The study’s findings showed that signs and symptoms of TMD were 82.5% and 55.3% among complete denture wearers and 80.4% and 49.0% among non-denture wearers, respectively. Furthermore, the most frequent sign and symptom was the joint sounds. This study revealed a statistically significant association between the prevalence of TMD symptoms and patient gender and between TMD signs and symptoms and OVD in denture wearers.
Conclusion: The current study supports the need to evaluate the potential impact of TMD on completely edentulous individuals and to take caution while receiving dental therapy and prosthetic rehabilitation.
                      
Peer Review History:
Received: 6 January 2023; Revised: 11 February; Accepted: 5 March 2023, Available online: 15 March 2023
Academic Editor: Dr. DANIYAN Oluwatoyin Michael, Obafemi Awolowo University, ILE-IFE, Nigeria, toyinpharm@gmail.com
Received file:                             Reviewer's Comments:
Average Peer review marks at initial stage: 5.5/10
Average Peer review marks at publication stage: 7.0/10
Reviewers:
Dr. Alfonso Alexander Aguileral, University of Veracruz,  Mexico, aalexander_2000@yahoo.com
Dr. Bilge Ahsen KARA, Ankara Gazi Mustafa Kemal Hospital, Turkey, ahsndkyc@gmail.com
Similar Articles:
HISTOLOGIC AND RADIOGRAPHIC STUDY OF PATHOLOGIC CHANGE IN COMPLETE IMPACTED THIRD MOLARS DENTAL FOLLICLES
IMMUNOLOGICAL STATUS OF HEPATITIS B VIRUS INFECTION AMONG FRESHMEN UNIVERSITY STUDENTS IN YEMEN
Authors: Al Makdad Abdul Salam Mohamed , Al-Haifi Abdulrahman Y. , Al-Mutaa Najlaa Abdullah Mohammed , Al-Shamahy Hassan Abdulwahab
Published: March 2023

Background: Hepatitis B virus (HBV) is a most important health problem, it's a global pandemic. Previous surveys showed a high prevalence of hepatitis B infection in Yemen. Hepatitis B vaccination is the most efficient way to prevent hepatitis B virus infection and its outcomes (such as hepatocellular carcinoma, cirrhosis, and liver failure).
Aim: To measure the immune status of hepatitis B virus amongst first-year students at the faculties of Thamar University during the academic year 2021-2022.
Methods: A total 196 of first-year students participated in this cross-sectional study and tested for anti-HBsAg and the antibody to HBV core antigen (anti-HBc) and HBsAg by using ELISA during the period from January to May 2022 at Thamar University. An anti-HBs antibody titer ≥10 mIU/mL was regarded as being protective against HBV infection.
Results: In this study, 22.4% of the students had protective levels against hepatitis B, while 77.6% had a non-protective level. HBV markers showed that 19.90%, 2.55%, and 75.51% of the students had been vaccinated and immunized due to a previous infection and exposed to HBV infection respectively and only 2.04% of them were non-obvious cases. The prevalence of anti-HBc was 4.6%. Risk factors that showed statistical significance were found between positive anti-HBc and family history of HBV (p=0.01).
Conclusion: The low prevalence of hepatitis B protection levels in Thamar University medical students needs further research and necessitates implementation of a screening and vaccination program for all non-immunized healthcare students.
                       
Peer Review History:
Received: 24 December 2022; Revised: 13 February 2023; Accepted: 8 March 2023, Available online: 15 March 2023
Academic Editor: Dr. Iman Muhammad Higazy, National Research Center, Egypt, imane.higazy@hotmail.com
Received file:                             Reviewer's Comments:
Average Peer review marks at initial stage: 6.0/10
Average Peer review marks at publication stage: 7.5/10
Reviewers:
Rola Jadallah, Arab American University, Palestine, rola@aauj.edu
Dr. Wadhah Hassan Ali Edrees, Hajja University, Yemen, edress2020@gmail.com
Similar Articles:
PREVALENCE OF HEPATITIS A VIRUS, HEPATITIS B VIRUS, AND HEPATITIS C VIRUS, AMONG PATIENTS WITH HEPATIC JAUNDICE IN SANA’A CITY, YEMEN: A HOSPITAL BASED STUDY
PREVALENCE OF DIFFERENT HEPATITIS B VIRUS GENOTYPES AND RISK FACTORS ASSOCIATED AMONG SELECTED YEMENI PATIENTS WITH CHRONIC HEPATITIS B INFECTION
IMPACT OF SAMPLE STORAGE CONDITIONS ON FORENSIC TOXICOLOGY ANALYSIS – A REVIEW
Authors: ADOUANI Badr , RAHMOUNE Imane , FILALI Houda
Published: March 2023

In forensic toxicology, the preservation of matrices is a crucial stage in the analysis that affects the accuracy and reliability of the findings. To reduce interference and improve the findings’ interpretation, specimens should be maintained in the right environment. For analytical objectives in forensic toxicology, we aim to characterize the modalities of preservation of the distinct matrices for each incriminated toxin. A comprehensive literature search in both English and French languages was conducted using the keywords "forensic samples preservation" to find pertinent papers in the PubMed and ScienceDirect databases. The results were then carefully examined. The preservation method based on the biological matrix and the required harmful substances was the major focus of the investigation. This bibliographic research’s objective is to understand the sample preservation methods used in diverse studies as well as each method’s limitations in light of the biological matrix and xenobiotics being investigated. The mode and duration of conservation depend closely on the matrix and the toxins to be sought. Certain hazardous compounds' chemical stability in biological matrices is influenced by storage conditions compliance. Therefore, it is apparent that forensic scientists would benefit from knowledge of the sampling and storage procedures for substances suspected of posing a threat.
                       
Peer Review History:
Received: 17 December 2022; Revised: 9 February 2023; Accepted: 5 March, Available online: 15 March 2023
Academic Editor: Dr. Marwa A. A. Fayed, University of Sadat City, Egypt, maafayed@gmail.com
Received file:                             Reviewer's Comments:
Average Peer review marks at initial stage: 6.0/10
Average Peer review marks at publication stage: 7.0/10
Reviewers:
Dr. Sally A. El-Zahaby, Pharos University in Alexandria, Egypt, sally.elzahaby@yahoo.com
Dr. Nuray Arı, Ankara University, Turkiye, ari@ankara.edu.tr
Dr. Bilge Ahsen KARA, Ankara Gazi Mustafa Kemal Hospital, Turkey, ahsndkyc@gmail.com
Similar Articles:
STORAGE EFFECT ON THE GC-MS PROFILING AND ANTIOXIDANT ACTIVITIES OF ESSENTIAL OILS FROM LEAVES OF ANNONA SQUAMOSA L.
Lexical Repetition in the Hypotactic Constructions of Kartvelian Languages
Authors:   Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia, Kurdadze Ramaz
Published: March 2023

In the Georgian folk literature, repetition has a profound psychological basis. The paper focuses on lexical repetition in hypotactic constructions. Stylistically used lexical repetition forms a kind of hypotactic construction which becomes more comprehensible based on the preceding context. Research of the functional styles of oral folklore and written literary texts is topical. The methods used are as follows: statistical, historical-comparative and distributional (syntagmatic and paradigmatic). Such attitude reveals diverse linguistic capacity of structuring (shaping and transfer) of information. The research outcomes will be of interest for linguists, specialists in the theory of literature, professionals working in other related fields as well as students.
"Хүн ба түүний оюун ухаан"- тай холбоо бүхий хэлц хэллэгт үндэсний онцлог туссан нь /монгол, англи хэлний жишээн дээр/
Authors: Тунгалаг Ш.
Published: March 2023

Modern linguistics tends to link language to humans and to study humans as a center of linguistic research. Linguistic anthropology studies the nature of human languages in the context of those cultures that developed them. Scholars in the field seek to understand the social and cultural foundations of language itself while exploring how social and cultural formations are grounded in linguistic practices. Humans differ from other animals by their ability to complex reasoning and use complex language. In this article, we aim to compare how Mongolian and English idioms related to human intelligence reflect national and cultural features, and the figurative branch of the language especially idioms need special attention in language learning and adequate research.
Descripción de la experiencia de un programa de Profilaxis preexposición (PrEP) a VIH en Medellín, Colombia
Authors: Cataño-Correa Juan Carlos , Montoya-Flórez Paula Andrea , Cardona-Arias Jaiberth Antonio
Published: March 2023

Objetivo: describir la experiencia de un programa de profilaxis preexposición para VIH (PrEP) en Medellín. Métodos: estudio de una cohorte retrospectiva. El programa tuvo tres fases: talleres de motivación frente al VIH y su prevención, inclusión de participantes y evaluación de desenlaces clínicos y determinantes socioeconómicos de la adherencia. Resultados: se incluyeron 50 hombres que tiene sexo con hombres y 2 mujeres trans; 79% (n=41) con nacionalidad colombiana. Al ingreso 10% presentó sífilis latente indeterminada. No se presentaron casos de VIH, 48% completó el seguimiento, se registraron leves efectos secundarios relacionados a la PrEP que no llevaron al abandono del programa. Los factores económicos fueron la causa más frecuente de abandono. Conclusión: la PrEP es efectiva y segura, los determinantes económicos son el principal factor explicativo de la adherencia. Es importante incluir la PrEP para grupos clave en los planes de salud, y ajustar el programa a la realidad socioeconómica de cada población.
Two Wings of Art Writing
Authors:   Russian State University for the Humanities, Tiupa Valeri I.
Published: March 2023

The article examines the correlation between aesthetic and rhetorical aspects of artistic writing in a historical perspective. Before the “aesthetic revolution” of the 18th century, which was marked with the publication of Baumgarten’s Aestheticism, written language, while possessing an essentially creative potential, was conceived purely rhetorically, not as the creation of conditional holistic worlds, but as a textforming craft of a special kind. The discovery of the creative nature of art served as a powerful impulse for its development and shaped classical European artistry. A mental crisis of artistic culture at the turn of the 19th and 20th centuries resulted in an imbalance between the aesthetic and rhetorical vectors of artistic writing. Avant-garde provocation, political engagement, and consumer fiction depreciated the aesthetic component of art from various angles. The critical discord between de-aestheticization of artistic writing and the rehabilitation of its aesthetic value was embedded in the formation of a theory of literature as a science, which took place in the polemic between “aesthetics of verbal creativity” by M.M. Bakhtin and purely rhetorical poetics of the formal school. This confrontation, which gave rise, in particular, to the phenomenon of “postmodernism,” continues to this day. It is in this confrontation that the fate of literature as an art of the word is decided.
National Identity and a Literary Canon in British Tradition of the 20th Century
Authors:   Altai State University, Karpukhina Viktoriia N.
Published: March 2023

The author of the article investigates the problem of a literary canon changing in the situation of installing the multilingual writers’ texts into literary tradition. The texts under consideration are the literary and publicistic works by Joseph Rudyard Kipling and John Robert Fowles, the writers acknowledged classical beyond Britain but appreciated as the mass literature authors in the United Kingdom. The paper aims at revealing the reasons and the consequences of installing the Rudyard Kipling’s and John Fowles’s texts into the literary canon, and at defining how the multilingualism and multiculturalism of these writers is connected with their interpretation of the notions of “Englishness” and “Britishness.” Anglo-Indian Kipling’s axiological priorities are the hierarchy of the text characters depending on their national and cultural characteristics and creating the unique author’s multicultural mythology. The key axiological principle of Fowles is understanding of the priority of French culture over the English one and creating the specific sample of an ideal representative of “Englishness,” who is the cosmopolitan lonely rebel with a strong artistic sense. Fowles’s national and cultural identity is shown in his stories and novels with the communicative fragments in different languages to create a very complex multicultural conceptual landscape, often ironical.
Intertextuality and Archetype Transformation as the Polysemy Basis of the Modern Reimagined Fairy Tale
Authors:   L.N. Gumilyov Eurasian National University, Nurgali Kadisha R. , Gilea Aigerim A. ,   L.N. Gumilyov Eurasian National University
Published: March 2023

In the modern English-language literary space the genre of short prose, based on the plots of classical fairy tales and addressed primarily to an adult audience, is extremely popular. Over half a century already, this genre has emerged as a separate discourse (in this article, the authors call it a “Reimagined Fairy Tale,” considering the memory of the genre). Such modificated fairy tale is simultaniously the result of the postmodern world perception (intertextuality, playfulness, gamification, multilevel text, irony, etc.) and a critical thought (deconstruction, denial of logocentrism), and represents an extensive material for research both from the point of view of literary criticism and from interdisciplinary positions. Using the example of the modern literary tale by R. Shirman “Hunger,” which is based on the folk story about Hansel and Gretel, the authors attempt to trace how the multilevel coding of the text takes place using the transformation of Jungian archetypes and deconstruction of binary oppositions that underlie them on the one hand, and literary and religious reminiscences, and allusions on the other. The authors trace how the text passes into the category of open ones and allows the reader to choose himself which of the meanings of the tale is closer to him. According to the authors, this methodology is applicable to all texts of a given genre and can be productive as a way of reading, and also useful for clarifying the genre features of a modern fairy tale-modification.
Arnold Böcklin’s Pictorial Motifs in the Poetry of Russian Modernism
Authors:   A.M. Gorky Institute of World Literature of the Russian Academy of Sciences, Kuznetsova Ekaterina V.
Published: March 2023

The work of the Swiss artist Arnold Böklin (1827–1901) is a bright page of European culture. His painting “Island of the Dead” for several decades in the early 20th century was a favorite canvas of the Russian intelligentsia. The article attempts to consider the evolution of the perception of Böklin’s painting in the era of Russian Art Nouveau in poetry, criticism and public consciousness. The main material of the study is the lyrics of K. Fofanov, A. Fedorov, N. Klyuev, I. Bunin, Andrei Bely, I. Ehrenburg, Sasha Cherny, I. Savin and A. Tarkovsky. Fofanov and Klyuev saw in the painting of the artist a deep reflection of their thoughts about the succession of birth and death in the life of each person and in the fate of all mankind. Fedorov turns to the images of Böklin to create his own version of the myth of Orpheus and Eurydice. Bunin was attracted by the lyrics of nature, mood landscapes expressing the eternal beauty of the universe. Andrei Bely was interested in Böklin’s experiments in pictorial mythopoetics related to his own searches. In the poetry of I. Savin and Tarkovsky’s “Island of the Dead” changes its symbolic content: from a symbol of the greatness of death, it becomes a sad monument to Russian pre-revolutionary life, washed away by a wave of historical cataclysms.
“To Dear BorFed”: Newly Found Yu.M. Lotman’s Inscripts from the Library of B.F. Egorov
Authors:   Institute of Russian Literature (Pushkin House) of the Russian Academy of Sciences, Dmitriev Andrey P. , Glushakov Pavel S.
Published: March 2023

The publication is a reproduction of twenty book inscripts by Yu.M. Lotman from the library of B.F. Egorov. These inscriptions on books, magazines and reprints of articles form a kind of dialogical form, definitely reminiscent of epistolary communication. The published inscripts are valuable evidence of comradely and collegiate communication between two remarkable scientists, who were connected by decades of productive cooperation. The first inscript is dated 1952, and the last one discovered is 1992. For the first time, the article presents the reproduction of Lotman’s drawing, which depicts the entire family of the scientist. The inscriptions are often built on a language game, they are playful and spontaneous, but still the basis of dedicatory inscriptions are those in which the enduring importance of friendship, collegiality and morality is emphasized. The scripts are printed from autographs kept in B.F. Egorov’s home library in St. Petersburg.
Organization barriers and social justice analysis of professional women in the workplace
Authors: Dosunmu Akinola George , Dichaba Mpho
Published: March 2023

The gender gap still poses a setback for women to advance their careers (United Nations Educational, Scientific and Cultural Organization [UNESCO], 2015). Gender equality for working women and the issue of organization governance have continuously been debated as a social reality in the workplace. However, the discourse of equality and equity in the study of women and organizations often focuses on fairness in the sub-Saharan regions. The inability to adequately theorise women’s opportunities within the organization setting and from social justice perspective is problematic. Thus, discrimination based on gender in the workplace is deeply organizational and social if studied from the perspective of fairness and justice. Therefore, this paper problematizes the importance of gender equality from an organizational governance perspective and argues that the lack of mentoring and discrimination based on gender affects women working in a corporate organization in South Africa.
Computational analysis of mechanical behaviour of stem cell in micropipette aspiration technique
Authors: Vahidi Bahman , Ghaemi Roza Vaez , Alihemmati Zakieh , Choukan Ehsan
Published: March 2023

Mechanical properties of living cells play an important role in helping
to understand cell physiology and pathology. However, to ensure
reliability, it is important to precisely define the experimental
conditions of these mechanical test. In this study, viscoelastic
properties of the outer layer (cytoplasm and membrane) were extracted
using standard linear solid model. Finite element modeling of the
two-layer cell was performed and the model was validated by experimental
data. In the two-layer model, the effect of the radius of the nucleus
and the location of the nucleus on the whole cell behavior were
investigated. By increasing nucleus size, the whole cell properties
follow the nucleus properties and the role of the nucleus becomes more
dominant. By dislocating nucleus inside the cytoplasm, the cell behavior
changes significantly and becomes more similar to that of nucleus
properties. Similarly, changing the aspiration pressure and rate,
impacts the observed behavior drastically. The results demonstrate that
the location of the nucleus and the ratio of the radius of the cytoplasm
to the radius of the nucleus can effectively influence the viscoelastic
properties and mechanical behavior of the cell.
Association of single nucleotide polymorphism and methylation of dopamine system-related genes with psychotic symptoms in patients of methamphetamine use disorders
Authors: Fang Ting , Liu Meng-Qi , Liu Meng-Nan , Tian Xiao-Yu , Zhang Xiao-Jie , Liu Feng , Hao Wei , Wu Ning , Li Hong , Li Jin
Published: March 2023

Background: Methamphetamine use disorders (MAUD) can substantially
jeopardize public security due to their high-risk social psychology and
behavior. Given that the dopamine reward system is intimately associated
with MAUD, we investigated the association of single nucleotide
polymorphisms (SNPs), as well as methylation status of DRD4, COMT genes
and paranoid, motor impulsive symptoms in MAUD patients. Methods: A
total of 189 MAUD patients participated in our study. Samples of
peripheral blood were used to detecte for 3 SNPs and levels of 35 CpG
units of methylation in the DRD4 gene’s promoter region, 5 SNPs and 39
CpG units in the COMT gene. Results: MAUD patients with rs1800955 C
allele have a lower percentage of paranoid symptom than those with
rs1800955 TT. Individuals with paranoid symptom exhibited reduced
methylation degree at particular DRD4 CpG2.3 unit. The interaction of
the DRD4 rs1800955 C allele and the reduced DRD4 CpG2.3 methylation
degree resulted in the lower occurrence of the paranoid symptom.
Meanwhile, those with COMT rs4818 CC allele have lower motor impulsivity
scores in MAUD patients, but greater COMT methylation levels in the
promotor region and methylation degree at COMT CpG 51.52 unit.
Therefore, based only on COMT rs4818 CC polymorphism, there was a
negative correlation between COMT methylation and motor impulsivity
scores in the MAUD patients. Conclusions: Our results found that the
combination of SNP genotyping and methylation status of the DRD4 and
COMT genes may serve as biological indicators to evaluate the prevalence
of relatively high-risk psychotic symptoms in MAUD patients.
Simplified and effective RNA interference and CRISPR-Cas9 systems for Cryptococcus neoformans
Authors: Chen Qiying , Wu Yifan , Peng Xinyuan , Peng Min , Zhang Chen , He Yifan , Kong Qing tao , Sang Hong
Published: March 2023

The 3,4-dihydroxyphenylalanine (DOPA) melanin is one of important
virulence factors for Cryptococcus neoformans, which may trigger immune
responses in the host. It is worth exploring the genetic function of C.
neoformans, by which we may derive more antifungal strategies.
Therefore, we established two systems that were constructed quickly and
easily for the knock-down/knock-out of LAC1 gene: RNA interference
(RNAi) and clustered regularly interspaced short palindromic repeats
(CRISPR)-Cas9. The RNAi system used pSilencer 4.1-CMV neo plasmid and
short hairpin RNA to realize the effective transcriptional suppression.
The CRISPR-Cas9 system used the PNK003 vectors to obtain a stable albino
mutant strain. The results of phenotype, qRT-PCR, Transmission Electron
Microscope (TEM) and spectrophotometry were used to assess the ability
of melanin production. As a result, the RNAi system displayed
attenuation of transcriptional suppression when the transformants
continuously passed on new plates. However, the transcriptional
suppression of long loop in short hairpin RNA were more powerful and
lasted longer. The CRISPR-Cas9 system constructed an albino strain
completely without the ability to produce melanin. Considering the
weakening of transcriptional suppression, we recommend using a long loop
for the RNAi system and 1st or 2nd passage of knockdown strains for the
subsequent studies. Besides, the different capacities of melanin
production might be useful for exploring the linear relation between
melanin and immunoreaction of the host. In addition, we recommend
applying the PNK003 vectors to other serotypes of C. neoformans for
quick screening of possible trait-regulating genes because of its easy
construction and valid knockout effect.
Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites
Authors: Suljagic Marija , Kremenovic Aleksandar , Petronijevic Ivan , Dzunuzovic Adis , Mirkovic Miljana , Pavlovic Vladimir , Andjelkovic Ljubica
Published: March 2023

To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150?C and 1300?C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the samples sintered at 1300?C had better performances than those sintered at 1150?C. The composite synthesized by thermal decomposition and sintered at 1300?C stands out among other prepared BaTiO3/CoFe2O4 ceramics, owing to high stability in the wide frequency range and low leakage currents. The obtained results indicate that such composite might be successfully applied as a functional multiferroic.
Investigation of Li2O and TiO2 effects on MAS glass-ceramic produced from waste material
Authors: Canikoğlu Nuray , Özarslan Cansu , Özkan Toplan
Published: March 2023

Among glass-ceramics, MgO-Al2O3-SiO2 (MAS) system occupies an important place due to its good characteristics. In this study, the magnesite waste being an industrial waste was evaluated for the production of MAS glass ceramics and the properties of the glassceramics produced were examined. For this purpose, mixtures were prepared using magnesite waste, quartz, kaolin and alumina raw materials according to the chemical composition of cordierite. Furthermore, in the mixtures prepared with the additions of TiO2 and Li2O added as a nucleating agent the effects of these additions on the crystallization temperatures were investigated. Crystallization temperatures of the glass samples were determined by the differential thermal analysis (DTA) and characterized by X-ray analysis (XRD). Subsequently, the glass-ceramic transformation was performed at 1000, 1050, 1100, 1150 and 1200?C for 1, 3, 5 and 10 hours. The products obtained were analyzed using X-ray (XRD) and scanning electron microscope (SEM). In addition, the microhardness of glassceramic products and their corrosion resistance in an acidic environment were measured and compared in this study.
Intergranular space, specific surface area, grain size distribution and distribution of macro, meso and micropores of multiphase microstructure in active microalloyed multifunctional ceramics
Authors: Purenovic Jelena , Purenovic Milovan
Published: March 2023

As a complex multiphase heterogeneous system in solid state, multifunctional active microalloyed alumo-silicate ceramics has an inhomogeneous structure with intergranular space, which is reflected in a number of structurally sensitive properties. A very complex intergranular space and numerous interactions between individual phases and grains create new boundaries and an even more complex space with much smaller micrograins, which are formed by grain fragmentation by dislocations displacement. In addition to reducing macro and meso porosity, densification of intergranular space increases the number of micro pores. Intergranular surface area and volume are considered as dislocation space. Quantitative metallography method was applied to determine grain size distribution using software for automatic analysis. Specific surface tests and pore distribution were performed on special samples of multifunctional ceramics. Standard methods for determining specific surface area of samples in vacuum were used. Obtained results, which were relevant in terms of theoretical and practical implications, confirmed that multifunctional active microalloyed ceramics had a developed surface with significant number of meso and micro pores. Due to constancy of grain fragmentation process, there were significant changes in micromorphology and all multifunctional properties, as well as movement of dislocations, which made a significant contribution to contemporary research in this field.
Influence of mechanochemical activation on the thermal behavior of pyrophyllite
Authors: Mitrovic-Rajic Andjela , Pantic Tijana , Milosevic-Govedarovic Sanja , Paskas-Mamula Bojana , Filipovic Nenad , Grbovic-Novakovic Jasmina , Dimitrijevic Silvana
Published: March 2023

The effect of mechanical milling on the thermal behavior of pyrophyllite ore from a deposit in Parsovici, Bosnia and Herzegovina, was characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Particle size distribution. The thermal behavior of the material was followed by thermogravimetric and differential thermal analysis and correlated to its microstructural properties. The Williamson-Hall model was used to calculate the crystallite size and microstrain. Mechanochemical treatment of pyrophyllite ore produced a substantial structural modification, mainly along the c axis, resulting in disorder and partial degradation of the crystal structure of the ore. The particle size diminution, induced defects, and microstrain in the crystal lattice cause decrease in the peak intensity until the final disappearance. As confirmed by scanning electron microscopy and particle-size-distribution analysis, the surface area and the agglomeration is more pronounced as grinding time increases. Dehydroxylation of the minerals in the unmilled ore was realized at 716oC confirm by FTIR analysis. The endothermic peak that corresponds to dehydroxylation is shifted toward lower temperatures and becomes broad giving rise to the formation of amorphous SiO2 as milling time increases.
Processing of gelatine coated composite scaffolds based on magnesium and strontium doped hydroxyapatite and yttria-stabilized zirconium oxide
Authors: Galic Aleksa , Matic Tamara , Obradovic Natasa , Bascarevic Zvezdana , Veljovic Djordje
Published: March 2023

Limited bone bank capacity and risk of infection are some of the main drawbacks of autologous and allogenic grafts, giving rise to synthetic materials for bone tissue implants. The aim of this study was to process and evaluate the mechanical properties and bioactivity of magnesium and strontium doped hydroxyapatite (HAp) scaffolds and investigate the effect of adding zirconium oxide and gelatine coating the scaffolds. Doped nanosized hydroxyapatite powder was synthesized by the hydrothermal method and the scaffolds were made by the foam replica technique and sintered at different temperatures. Yttria-stabilized zirconium oxide (YSZ), synthesized by plasma technology, was used as reinforcement of calcium phosphate scaffolds. Element analysis, phase composition, morphology of the powders and microstructure of the scaffolds were investigated, as well as the compressive strength of the coated and uncoated scaffolds and bioactivity in simulated body fluid (SBF). A microporous structure was achieved with interconnected pores and bioactivity in SBF was confirmed in all cases. The best mechanical properties were given by the coated composite HAp/YSZ scaffolds, withstanding average stresses of over 1019 kPa. These results encourage the idea of use of these scaffolds in bone regenerative therapy and bone tissue engineering.
The influence of sintering condition on microstructure, phase composition, and electrochemical performance of the scandia-ceria-Co-doped zirconia for SOFCs
Authors: Elahi Pooya , Winterholler Elizabeth , Horsley Jude , Sparks Taylor
Published: March 2023

Samples of 6 mol% Sc2O3 - 1 mol% CeO2 co-doped ZrO2 were fabricated by conventional ceramic processing methods and sintered at various temperatures from 1000 to 1650?C in air. The sintering conditions on microstructure and phase content are investigated using various characterization methods, including pycnometry, diffraction, and spectroscopy. The electrical conductivity of samples was investigated using electrochemical impedance spectroscopy (EIS). The effect of inductive load (measured from room temperature to 800?C) is discussed in low to high temperature regimes. At T<400?C since the arc is not a complete semicircle, the high-frequency arc could be fit using a constant phase element (CPE), while by subtraction of inductive load, a good fit is achieved using a capacitor element instead of CPE. The Arrhenius conductivity plot of samples reveals that the specimen sintered at 1600?C for 6 hours exhibits the highest conductivity. The activation energy (Ea) and conductivity preexponential (?0) factor are calculated from a linear fit to data that decreases by the increase in sintering temperature.
Thermal modelling system for green energy application of exterior wall under smart home building
Authors: Guo Yanlong , Yao Ran
Published: March 2023

In order to better solve the problems of heating and environment, the author
proposes a new Generation 5 heating technology wall green energy
application ther?mal energy system, its main feature is a coating type
carbon fiber, which heats up by connecting the electrode, so that the indoor
temperature can be kept comfortable. The stability and accuracy of the
heating thermal energy system are demonstrated through specific
experiments. The experiment shows that the system can maintain the stability
of indoor heat energy and keep the temperature in the wall between 20-25 ?C.
Conclusion is that the thermal energy modelling system of the green energy
application of the exterior wall under the smart home building effec?tively
solves the heating and environmental problems.
Application modelling of intelligent diagnosis for thermal cycle system
Authors: Liang Chunda
Published: March 2023

In order to solve the problem of intelligent fault diagnosis of thermal
system of thermal power unit, the application modelling of intelligent
diagnosis of thermal cycle system is proposed. This paper first filters the
influence of the change of valve opening of steam turbine on the performance
index under the condition of constant power, and qualitatively analyzes the
actual change of the performance index compared with the reference working
condition when the component fails, so as to eliminate the mutual influence
between the components. Then, the selection principle of thermodynamic
parameters is determined, the irreversible loss in the structural theory of
thermal economics is introduced as the performance index, and the model is
used to quantitatively calculate the change of performance index of each
component under fault conditions to diagnose the failed component. Finally,
APROS simulation software is used to simulate various fault conditions of
330 MW units in a power plant. The experimental results show that the
recognition accuracy of the monitoring system designed in this paper can
reach 98.33%. In conclusion, the method in this paper proves the feasibility
of intelligent fault diag?nosis of thermodynamic system network.
Simulation analysis and design optimization of campus outdoor thermal environment under compound energy supply system
Authors: Zhang Zhiying , Mei Yuqian , Xu Yuequn , Feng Jing , Zhang Yifan
Published: March 2023

In order to solve the problem of quantitative analysis of the impact of
greening facilities on outdoor near-ground temperature, the author proposed
the simulation analysis and design optimization of campus outdoor thermal
environment under the compound energy supply system. On the basis of UAV
aerial survey data, ENVI-met was used to establish two schemes of actual and
non-vegetation in the study area, and the thermal environment was simulated
and compared. The experimental results show that: UAV tilt photography can
quickly obtain orthophoto images and high precision 3-D information of the
research area, and ENVI-met modelling is more flexible and cheaper. The
correlation coefficient between the results and the measured results is
>0.9, and the root mean square error is 0.6?C, the simulation results can
reflect the distribution of temperature in the study area well. Vegetation
and turf had obvious cooling effect, the area of high temperature area (>36
?C) in the study area without vegetation increased by 34%, the area of
predicted mean vote (PMV > 4.5), which is an evaluation index of human
thermal response (cold and heat sensation), increased by 17%. In the
vertical direction, the cooling effect of vegetation on the ground can be
extended to 15 m. In conclusion vegetation and greenery can reduce the
temperature near the ground through transpiration, effectively improve the
urban thermal environ?ment, and improve human comfort.