bluuebunny/crossref_metadata_2025 huggingface dataset:
Machine Learning Insights Into Mental Health Risk Factors Associated With Climate Change
Authors: Bose Manoswita , Clement Aloysius G. , Rajendran Rajesh Kanna
Published: April 2024

In this chapter, we use machine learning techniques to investigate how the effects of climate change and certain risk factors for mental health affect students' cognitive skills in the classroom. The mental health of at-risk populations, especially students, must be considered in light of the fact that the world's environment is changing significantly. Using state-of-the-art machine learning algorithms, we analyze large datasets that include environmental variables, socio-economic characteristics, and markers of mental health among school-aged persons. We are primarily interested in identifying key relationships and trends that might help us understand the complex relationship between climate change and cognitive health in this population. In order to uncover complex insights, the chapter takes a holistic approach by combining feature selection, model training, and interpretability analysis. The cognitive capacities of school-aged children may be significantly impacted by some climate-related stresses, according to preliminary results. The findings add to our knowledge of the interconnected webs of environmental shifts, psychological susceptibilities, and cognitive consequences. Educators, legislators, and healthcare providers can benefit from this study's use of machine learning insights into the possible effects of climate change on students' mental health. It also paves the way for the creation of tailored treatments and adaptive techniques to deal with the highlighted dangers, fostering resilience and prosperity in the face of a changing environment.
Above and Beyond Survival
Authors: Vashishtha Kriti , Joshi Ruchi , Dhankar Charu , Tripathi Shraddha
Published: April 2024

Myriad studies have reported that natural disasters have adverse effect of climate change. Dismally, the mental health impacts of such disasters are often overlooked, and the long-term psychological effects on survivors are often understudied. This chapter aims to explore the mental health impact of some deadliest natural disasters in India, caused by climate change. The disasters from 1943 to 2018 were examined chronologically for this purpose. The great Bengal famine/drought, Super Cyclone Odisha, the Tsunami in the Indian Ocean, and floods in Bihar, Uttarakhand, Kashmir, and Kerala are among the devastating disasters. Researchers also analyzed the data from the National Mental Health Survey of India (2022), which estimates the prevalence of mental health disorders in India. This investigation contributes to a holistic understanding of the enduring mental health legacy by synthesizing knowledge from the fields of psychology, fostering a more informed and compassionate approach to supporting affected communities on their journey toward healing.
Deep Learning Approaches to Understanding Psychological Impacts on Vulnerable Populations
Authors: Mehta Mohit , Prasad Ronak S. , Giri Mousumi , Rajendran Rajesh Kanna
Published: April 2024

This chapter investigates the psychological effects on vulnerable groups, with a particular emphasis on the relationship between deep learning techniques and the impact of climate. Vulnerable groups confront particular problems, which might lead to negative psychological results. Investigating this complexity is critical to designing effective intervention techniques. Using sophisticated deep learning techniques, this study seeks to find subtle patterns and correlations in a variety of datasets, including psychological markers, socioeconomic characteristics, and climatic variables. The work employs a comprehensive technique that includes deep learning models, feature extraction, and interpretability analysis to untangle complicated relationships. Preliminary findings imply that deep learning approaches might uncover previously unknown links between climate change and psychological effects on vulnerable groups. This insight adds to a more comprehensive understanding of the difficulties. This understanding contributes to a more holistic grasp of the challenges faced by these groups. By including climate-related factors into the deep learning framework, this study hopes to close the gap between environmental impacts and psychological well-being in vulnerable groups. The findings of this study not only improve our understanding of psychological dynamics, but also serve as a foundation for creating targeted therapies that take into account the combined influence of climate and other stresses on the mental health of vulnerable groups. This research chapter is critical for understanding policies and actions that promote resilience and reduce negative psychological effects in the face of environmental and socioeconomic difficulties.
Preparation and Investigation on Thermal Characteristics of Nanoenhanced Phase Change Material
Authors: Sivasamy P. , Athi Muthiah , D Sundarrajan , Kanagasabapathy H , Durkaieswaran P , Jegan B
Published: April 2024

A new form of composite PCMs is developed by adding 0.5 wt% of SiO2, TiO2, ZnO and CuO nanomaterials to lauric acid. Phase change temperatures of lauric acid range from 43.92°C to 44.65°C and 40.84°C to 41.36°C, respectively. In addition, the phase change latent heats are 183.23 kJ/kg and 183.68 kJ/kg at room temperature, respectively. Thermal properties of PCM with nanomaterials were discussed in terms of weight fractions. The improvement in thermal conductivity of the PCM owing to the dispersion of nanomaterials was verified by laser flash analyser (LFA). Hence, the newly developed composite PCMs holds great potential as a candidate for harnessing solar energy in low-temperature heating systems. Keywords: Phase Change Material (PCM), Melting, freezing, Nanomaterials and Lauric acid.
Fracture Toughness Investigation of AL6082-T651 Alloy under Corrosive Environmental Conditions
Authors: Alqahtani Ibrahim , Starr Andrew , Khan Muhammad
Published: April 2024

The crack initiation and propagation in an aluminium alloy in a corrosive environment are complex because of the loading parameters and material properties, which may result in a sudden failure in real-time applications. This paper investigates the fracture toughness of aluminium alloy under varying environmental and corrosion conditions. The main objective of the work is to link the interdependencies of humidity and temperature for an AL6082-T651 alloy in a corrosive environment. This study investigates AL6082-T651alloy's fracture behaviour and mechanism through microstructure and fractographic studies. The results show that a non-corroded sample, at room conditions, provided more load-carrying capacity than a corroded sample. Additionally, an increase in temperature improves fracture toughness, while an increase in humidity results in a decrease in fracture toughness.
Saving Environment in Architecture Design through Illusion Method: A Literature Review
Authors: Pradika Ferian Yavis , Samodra F.X. Teddy Badai , Cahyadini Sarah
Published: April 2024

Architecture deals with solving problems through building design, including environmental issues. This study focuses on and analyses the architectural illusion design to save the environment. Therefore, applying this illusion approach manipulates the area of the environment, which directly affects the user's living. The purpose of architectural illusion in the design is to impact the environment significantly. This study method reviews the relevant literature that provides solution strategies for a design without using illusions. These solutions are then compared using illusions to determine the differences in environmental saving. The result is that designs that apply architectural illusions will benefit the environment and not threaten the environment.
Spark Plasma Sintering of a Ceramic Material with a LaLuO3 Perovskite-Type Structure
Authors: Kolesnichenko Valeriy , Yurchenko Yuriy , Kornienko Oksana , Zamula Maryna , Samelyuk Anatoliy , Shyrokov Oleksandr , Tomila Tamara , Ragulya Andrey , Kotko Andriy
Published: April 2024

The development of new materials for various fields of science and technology has always been an important and priority task for scientists around the world. Recently, more and more interest in the creation of new materials has been drawn to compounds based on the perovskite phase with the general formula ABO3. The ability of the perovskite structure to adapt to different combinations of chemical elements leads to the possibility of creating new materials with different physical and chemical characteristics. In the present study, an ordered phase with a LaLuO3 perovskite-type structure was synthesized using the mechanosynthesis technique. The obtained material was sintered by spark plasma sintering. It was found that the formation of an ordered phase with a perovskite-type structure occurs directly during spark plasma sintering. A dense (99.7%) single-phase sample with a LaLuO3 perovskite-type structure was obtained. Despite the rather high density of the obtained sample (99.7%), it remains translucent for a number of reasons: the obtained sample is characterized by randomly oriented grains, which creates additional optical scattering.
Structure and Characteristics of Opal - Bi12GeO20 and Opal - NaBi(MoO4)2 Nanocrystalline Composites
Authors: Derhachov Mykhailo , Moiseienko Vasyl , Abu Sal Bilal , Latyshova Angela
Published: April 2024

In this work we investigate and analyze phase composition and structure parameters of the nanocomposites obtained by the melt-based impregnation of porous opal matrices with dielectrics prospective for optoelectronics applications Bi12GeO20 and NaBi (MoO4)2. The embedded material is formed inside opal pores as nanocrystals with an average linear size not exceeding 50 nm and modified lattice parameters. In the case of impregnating opals with Bi12GeO20, new additional compounds are produced and transformation of opal matrix from amorphous to crystalline state is observed. These effects are discussed in the framework of the interaction of bismuth cations with the surface of the 285 nm SiO2 particles that compose opal matrix. No stoichiometry deviations and new phases are detected in “opal-NaBi (MoO4)2” composite.
Analysis of Benefits of RFID Technology Implementation in Improving Precast Concrete Material Management Systems in Indonesian Construction
Authors: Arganiz Priangga , Muslim Fadhilah
Published: April 2024

Material management is a crucial factor that needs to be considered in any construction project. Poor material management can significantly impact the construction's quality, time, and cost. In Indonesia, the implementation of technology in construction, particularly in the field of materials management, is still not developing rapidly. Therefore, this study aims to identify the issues with the precast material management system in Indonesia and the benefits of implementing RFID technology to improve it. The methods employed include quantitative surveys with expert validation, pilot surveys, questionnaire surveys, data testing, and the Relative Importance Index (RII) method. The quantitative survey involved 50 respondents, selected based on specific criteria. The primary issue arising from the absence of RFID technology in precast material management in Indonesia is the inconsistency between the quantity and quality of precast materials arriving at the construction site. The lack of an automated tracking and data collection system is a contributing factor to these issues. Meanwhile, the main benefit of implementing RFID technology in improving precast material management systems in Indonesia is the ability to maintain accurate and up-to-date inventory records of precast materials. RFID technology enables real-time storage of comprehensive information, thereby minimizing material data recording errors.
Transmission Electron Microscope Analysis of Polycrystalline Silicon for Thin Film Solar Cells
Authors: Muhida Riza , Riza Muhammad , Pratowo Bambang , Muhamad Zein , Cucus Ahmad , Kurniawan Ari , Tanjung Tia , Thamrin Taqwan , Sutjipto Agus Geter Edy , Muhida Rifki
Published: April 2024

This research uses a transmission electron microscopy (TEM) approach to analyze the deterioration of the crystallinity of poly-Si placed on the textured substrate. On the textured substrate, we created a poly-Si photovoltaic film with a RMS roughness, σ of 64 nm. Based on TEM findings, we discovered that growth collisions are present in the poly-Si photovoltaic layer that was deposited on the textured substrate with an RMS roughness, σ of 64 nm. The growth direction of the columnar-like grains tends to be perpendicular to the slant slope of the textured substrate. The diagonally oriented columnar growth collisions may be seen clearly at V-shaped formations in the textured substrate. There are also cavities and fissures that were created by the collisions. There are also cavities and fissures that were created by the collisions. The crystallinity of poly-Si grown above the V-shape structure has worsened, as compared to poly-Si grown above the Λ-shape structure, according to the TEM and SAED pictures.
Characterization of GO Added ZnO Crystal Growth Using Electric Current Heating Method
Authors: Sutjipto Agus Geter Edy , Legowo Ari
Published: April 2024

ZnO has attractive and great properties especially in the fields of photonics, electronics and optics and it is widely used in the manufacturing industry of photodetectors, laser diodes and gas detectors. Therefore, various methods have been carried out to produce ZnO crystals and one of them is the Electric Current Heating method. Electric Current Heating (ECH) method is a fabrication technique applied in researches to grow ZnO crystal on a ceramic bar. This method is preferred because of it is easy to operate in laboratory, low growth temperature and also low cost. In this research, by using powder metallurgy process, Graphene Oxide/GO (in various weight percentage) added into ZnO was pelletized in a compaction die with dimension of 14.95 mm x 30 mm x 40 mm and pressure of 4 bar. The pellet green body was then sintered at 1100 °C with rate 10.0 °C/min for 3 hours. The sintered GO added ZnO ceramic was cut into ceramic bar with dimensio of 13mm x 2mm x 2mm. ECH with current 3 A and applied voltage of 30 V was used to heat the ceramic bar to produce crystals. Under scanning electron observation, it was found different crystal-like structures for each percentage GO addition. UV-Vis measurement has shown that each crystal-like structure of a GO added ZnO has own degree of energy absorbsion because of different band gap. Addition GO into ZnO would increase band gap of pure ZnO.
A Bibliometric Analysis of Global Scientific Literature on Substance Abuse among School Students Based on PubMed Database (1991-2021)
Authors: Murugathas K.
Published: April 2024

The purpose of the study was to carry out a bibliometric analysis of the global scientific literature on substance abuse among school children to understand the global research trend on the subject. Bibliographic data of journal articles related to the study topic published during 1991-2021 were retrieved from PubMed database. Data were analyzed using the Bibliometrix R package and MS Excel. The study identified annual growth of publication trends, top authors, leading institutions, Core journals, most contributing countries, and the country collaboration in the research activities on this subject. A total of 3,326 records were selected for the analysis. The annual growth of publications was increasing in trend. Lowry Richard from USA was the most contributing author based on the highest number of publications. The USA was the most productive country publishing the highest number of articles (2408 articles) and the highest international country collaboration with 49 countries all over the world. The University of California was the leading institution (874 articles) in this study. The study identified that the journal titled ‘Addictive behaviors’ was found to be the top journal with the highest number of publications (118 articles) on this subject. The study provides the current status and development of research in the field.
Information Seeking Among Law Undergraduates at the University of Peradeniya: Identifying Barriers and Proposing Strategies
Authors: Fernando W. R. N. , Weerakoon W. R. W. M. A. U.
Published: April 2024

This study investigates the information barriers faced by final-year law students at the University of Peradeniya, Sri Lanka, aiming to assess both personal and external barriers and propose improvements to law-related resources and services. The study utilized the entire population of fourth-year law students, consisting of 50 students, and employed structured questionnaires, resulting in a 72% response rate. It identified personal barriers such as time constraints, limited familiarity with library resources, discomfort in using the OPAC and lack of information literacy skills. Additionally, there were external barriers such as the absence of current legal materials and digital resources in the library. The research underscores strategies to alleviate these barriers by providing more up-to-date legal materials, expanded electronic resources, increased computers and internet facilities, and information dissemination through mobile technologies, thereby fostering a more conducive environment for academic success. The study also suggests resource and service improvements as a response to the major personal barrier of time constraints faced by students.
Pneumocystis pneumonia in HIV-positive and non-HIV patients: a retrospective comparative study from a lower-middle income country
Authors: Ayub Maaha , Bin Ali Zubairi Mustafa , Ghanchi Najia , Awan Safia , Jabeen Kauser , Zubairi Ali
Published: April 2024

In this study, we compared the predisposing factors, key demographic and clinical characteristics, clinical outcomes, and factors associated with poor prognosis in pneumocystis pneumonia (PCP) infection among the human immunodeficiency virus (HIV)-positive and non-HIV patient populations. This retrospective analysis was conducted at the Aga Khan University Hospital, Karachi, via the collection and analysis of patient records with a diagnosis of "pneumocystosis" between January 2015 and October 2020. Additionally, the laboratory database was evaluated, and patients with a laboratory-confirmed diagnosis of PCP were included. During the study period, 52 laboratory-confirmed hospitalized PCP patients were identified. Of these, 23 and 29 patients were diagnosed using microscopy and polymerase chain reaction, respectively. 34.6% of our patients were HIV positive, with a median CD4 count of 20.5 cells/mm3 (range: 10.7-50.5). Other conditions identified were corticosteroid use, autoimmune diseases, malignancy, radiation, and chemotherapy. On chest imaging, consolidation was found in 30%, ground-glass opacities in 24%, and nodular infiltrates in 20% of the cases. HIV-positive patients had a lower hemoglobin level and a higher level of β-D-glucan at the time of admission, whereas non-HIV patients were found to have more co-morbid conditions than HIV patients. We observed no difference in clinical outcomes between the two populations. Factors associated with a poor prognosis among our patients included concomitant infections at the time of diagnosis, the need for invasive mechanical ventilation, and a longer duration of stay in the hospital as well as the intensive care unit.
О локальной корректности задач с характеристическими свободными границами для гиперболических систем законов сохранения
Authors: Trakhinin Yuri Leonidovich
Published: April 2024

Доказательство локального по времени существования и единственности гладкого решения задачи со свободной границей для гиперболической системы законов сохранения имеет дополнительные трудности, если свободная граница является характеристикой этой системы. Они связаны с потерей контроля над производными по нормальному к границе направлению, а также с возможной неэллиптичностью символа свободной границы. Другой особенностью задач с характеристическими свободными границами является то, что в абсолютном большинстве случаев в априорных оценках решений соответствующих линеаризованных задач имеет место потеря производных от коэффициентов и правых частей. Более того, граничные условия линеаризованной задачи могут оказаться недиссипативными, что затрудняет применение энергетического метода. В статье дано описание методов, позволяющих преодолевать указанные трудности. Основными примерами являются задачи со свободными границами для уравнений Эйлера и уравнений магнитной гидродинамики идеальной сжимаемой жидкости, для которых дается обзор современных результатов об их локальной корректности.
Библиография: 61 название.
Aluminum Rivets, UNS A92117 2.5Cu - 0.3Mg (2117-T4) Procurement Specification
Authors:   E-25 General Standards for Aerospace and Propulsion Systems
Published: April 2024

This procurement specification covers rivets made from an aluminum alloy designated as 2117-T4, solution treated. The following specification designations and their rivet coatings are covered:
Use of Cognitive Enhancers among students of Nigerian Tertiary Institutions
Authors: Phina Uchendu Adaeze , Jude Uchendu Obiora
Published: April 2024

Introduction: Nonmedical use of pharmaceutical cognitive enhancers PCE in Universities has been documented in several studies. However, there is paucity of research on this subject among Nigerian University students. This survey hopes to investigate the awareness, use and effect of PCE among undergraduate medical students of a Nigerian University.

Materials and method: The study utilized self-administered questionnaire on the awareness and usage of PCE with respondents composed of 327 medical students at Delta State University, Nigeria.

Results: The respondents have a male to female ratio of 1:0.85 with 99.1% being single. Those living on campus, off campus, family home and dual accommodation, accounted for 65.4%, 30.6%, 2.8% and 0.3% of the participants. In total, 81.7% of the participants are aware of PCE usage for academic purpose. Overall, 40.1% of the respondents reported using one or more of the PCE during the period considered. Caffeinated drinks and beverages, energy drinks, cigarette, marijuana, and Ginseng were used by 82.5%, 50.4%, 3.1%, 1.5% and 1.5% of the users respectively. The motivation for using both caffeinate beverages and energy drinks are for increased study time, concentration and alertness. The more frequent periods of use are during examination period and personal study time. Most of these PCE are self-purchased and choice of usage are mainly influenced by friends. Both set of users reported insomnia, headache, palpitation, dizziness and fatigue as undesirable experience. Among the respondents, 45% are interested in using PCE if there are no undesirable effects; 30% rejected such, while the rest are indifferent.

Conclusion: Our survey showed significant association between the age, male gender and academic level and the usage of PCE. Our respondents used mainly caffeinated beverages and energy drink. Their choice of PCE is strongly influenced by peer pressure and the motivations are mainly to boost studying time, concentration and alertness.
Comparative assessment of renal volume and doppler velocimetric indices among subjects with sickle cell disease and controls in Benin, Nigeria
Authors: Imade Jeffrey Imuetinyan , Ehigiamusoe Festus Oghanina , Akhigbe Adenike O.
Published: April 2024

Background: Sickle Cell Disease (SCD), a hereditary blood disorder caused by an abnormality in haemoglobin can be complicated by impairment of renal function. Renal Doppler ultrasound has been found to be an effective method of evaluating reno-vascular events prior to abnormal laboratory renal function tests.

Aim and Objectives: This study aimed to evaluate and compare the renal volume (RV), intra-renal resistive and pulsatility indices (RI, PI) among sickle cell patients and controls in UBTH, Benin City using ultrasonography.

Materials and Method: This was a cross-sectional comparative study of renal volume, intra-renal resistive and pulsatility indices among 50 sickle cell disease patients attending sickle cell clinic of the University of Benin Teaching Hospital and equal number of “Age and Sex” matched controls. The study was conducted using a 2-8MHz curvilinear transducer of a SONOACE X6 (Medison Inc., Korea 2010) Doppler ultrasound machine.

Data analysis: Collated data was analysed using IBM SPSS Statistics for Windows, Version 23.0 (IBM Corp, Armonk. N.Y., USA)

Results: The mean age for the HbSS subjects was 22.4±3.7years while that of the control group was 23.3 ±4.5 years. The left RV was higher than the right RV in HbSS and HbAA: 169.3±40.2 cm3 versus 162.2±40.3 cm3 and 153.9±30.9cm3 versus 134.7±26.4 cm3 respectively. The mean RV, RI and PI was significantly higher in HbSS than controls (RV: 165.8±39.8cm versus 122.9±13.4 cm3 ; p = 0.0001, RI: 0.74±0.02 versus 0.61±0.04; p= 0.0001, PI: 1.43±0.06 cm3 versus 0.90±0.05; p = 0.0001).

Conclusion: Renal volume, RI and PI were statistically significantly higher in HbSS patients than controls.
The effect of yeast (Saccharomyces cerevisiae) fermentation on amino acid composition of hot water extract of Ficus capensis leaf
Authors: Dennis-Eboh U. , Onyeka B.O. , Ajoh A.I , Ohwokevwo O.A. , Apiamu A. , Egbune E.O. , Achuba F.I. , George B.O.
Published: April 2024

Introduction: In this study, the amino acid composition of cold and hot water extracts of Ficus capensis leaf was examined, along with the impact of yeast fermentation on the amino acid composition of the hot water extract. Although the hot water extract of Ficus capensis is commonly consumed as a beverage locally, there is currently a lack of documented literature regarding the amino acid composition of the wine produced from this extract.

Materials and Methods: Cold and hot water extracts of Ficus capensis leaf was extracted using homogenization and decoction method respectively. Ficus capensis wine was produced from hot water o must prepared using 0.8 g/l yeast, 22 brix, at pH 4.5 and fermented for 9 days. The amino acid composition of the cold water, hot water and wine extracts of Ficus capensis leaf were assessed using High Performance Liquid Chromatography. Results: The result shows the presence of amino acids in the cold water, hot water and wine extract of Ficus capensis. However the wine contained more amino acids with methionine an essential amino acid having the highest concentration. Conclusion: Fermentation of the hot water extract should be encouraged since it improved the amino acid content of the wine produced and would serve as an additional raw material for wine industry. Moderate consumption of Ficus capensis wine could potentially be beneficial to health and as well as combat the problem of malnutrition.
Spectrum of Findings in Lower Limb Doppler Ultrasonography in UBTH, Benin City
Authors: Ehigiamusoe F.O. , Emilomon J.O.
Published: April 2024

Objectives: Doppler ultrasonography (USS) is a relatively new radiological procedure in our environment but gradually gaining recognition in assessment of lower limb pathologies. This study aims to assess the pattern of referrals for lower limb Doppler USS and the outcome of the procedure at the University of Benin teaching hospital

Materials and Methods: This was a retrospective study carried out at the University of Benin teaching hospital, between January 2018 and June 2019. The request forms and Doppler scan results of patients done within this period were retrieved and relevant information were obtained and analyzed using statistical package for social sciences, version 23.

Results: A total of 204 patients comprising of 125 females (61.3%) and 79 males (38.7%) were analyzed in this study. Mean age of study population was 55.25±17.02 years. The commonest indication for lower limb Doppler scan was leg swelling (70, 22.8%) while the least was peripheral arterial disease (PAD) (14, 4.6%) The commonest Doppler ultrasound finding was PAD (74, 44.3%), followed by DVT (39, 23.4%). The least findings on Doppler ultrasound of the lower limb was arterio-venous malformation (AV) malformation (1, 0.6%). Arterial wall calcification (100%) was the commonest Doppler finding in patients with PAD. DVT occurred more in the left lower limb (67.7%) than right limb (32.3%) and superficial femoral vein (27.8%) was most affected.

Conclusion: This study has shown that Doppler scan is quite relevant in lower limb pathologies and peripheral artery disease is the commonest diagnosis in the lower limb.
Plasma Fibrinogen Levels and Protein C Activity in Patients with Chronic Kidney Disease in a Nigerian Tertiary Hospital
Authors: Adeyemi O. , Awodu O.A.
Published: April 2024

Introduction: Haemostatic abnormalities have been observed in patients with chronic kidney disease (CKD). Hypercoagulability and thrombotic complications may contribute to the increased morbidity and mortality associated with CKD. Thrombotic tendency has not been fully evaluated in CKD subjects in our environment. This research was to assess the plasma fibrinogen and protein C activity levels in patients with CKD in a Nigerian tertiary hospital, with the view of deducing their associations with thromboembolic manifestations and providing possible therapeutic interventions.

Material and Methods: A hospital based, cross-sectional survey conducted amongst CKD patients on renal replacement therapy (RRT), who were managed in the renal unit of the University of Benin Teaching Hospital (UBTH). Participants were appropriately matched with apparently healthy control subjects and these were interviewed with a structured questionnaire to obtain data on their clinical details as well as hospital records. Citrated plasma was obtained and analysed to determine the functional protein C activity as well as the fibrinogen levels of both subjects on RRT and apparently healthy control. Haematologic and biochemical parameters were also determined including complete blood count, urea and creatinine and liver function tests. Descriptive and Inferential statistics were performed using Statistical Package for Social Sciences (SPSS) version 20. Results were presented in tables and charts

Results: A total of 222 subjects participated in this study, comprising 74 patients with CKD on conservative management, 74 subjects with CKD on RRT, and 74 apparently healthy control subjects. The mean age across the groups including subjects on conservative management, RRT, and controls were 54.70±14.42, 49.5±15.73, and 49.3±12.5 years respectively; with the median age of 56-, 52-, and 48.5- years f across the groups respectively. The mean plasma fibrinogen levels across the groups were 240.4±57.76, 241.8±54.87, 360.9±69.5mg/dl respectively. This was statistically significant. The mean protein C activity for the respective groups was 59.6 ± 24.20, 63.6 ± 28.89, 86.7.±2.6%. Protein C activity was significantly depleted in the CKD subjects (p = 0.002).

Conclusion: The study showed a low protein C activity amongst patients with CKD and those with cardiovascular or thromboembolic events, suggestive of thromboembolic risk in these individuals. Contrary to existing literature, plasma fibrinogen levels were not significantly elevated in patients with CKD, and there was no association with thromboembolic events.
Identities for subspaces of the Weyl algebra
Authors: Lopatin Artem , Palma Carlos Arturo Rodriguez
Published: April 2024

In this paper we describe the polynomial identities of degree 4 for a certain
subspace of the Weyl algebra A_1 over an infinite field of arbitrary
characteristic.
Cayley Linear-Time Computable Groups
Authors: Kruengthomya Prohrak , Berdinsky Dmitry
Published: April 2024

This paper looks at the class of groups admitting normal forms for which the
right multiplication by a group element is computed in linear time on a
multi-tape Turing machine. We show that the groups $\mathbb{Z}_2 \wr
\mathbb{Z}^2$, $\mathbb{Z}_2 \wr \mathbb{F}_2$ and Thompson's group $F$ have
normal forms for which the right multiplication by a group element is computed
in linear time on a $2$-tape Turing machine. This refines the results
previously established by Elder and the authors that these groups are Cayley
polynomial-time computable.
Exploring the Integration of ChatGPT in Inquiry-based Learning: Teacher Perspectives
Authors: Adeyele Victoria Olubola , Ramnarain Umesh
Published: April 2024

ChatGPT, an AI-powered service known for its effective delivery of information and solutions, has the potential to transform education, scientific problem-solving, and student learning. However, to fully harness its advantages, understanding the pedagogical approach needed is essential. This study explores teachers' awareness of ChatGPT and the inquiry-based learning (IBL) 5E model, examines ChatGPT's effective use within IBL, and investigates teachers' perceptions and experiences when integrating ChatGPT into the IBL framework. Employing an exploratory qualitative approach, this research gains insight into teachers' perspectives on ChatGPT's integration into IBL. The study involves two distinct focus groups comprising Junior Secondary School (JSS) and Senior Secondary School (SSS) science teachers in Nigeria.  The findings highlight that while some teachers have actively integrated ChatGPT into the IBL 5E model and are already experiencing its benefits, others are at varying stages of awareness and adoption. The interest and curiosity expressed by some teachers suggest a potential for broader adoption as educators become more familiar with ChatGPT's capabilities within the context of IBL. This aligns with the idea that technology integration often involves a phased approach, with early adopters paving the way for broader usage.
The Impact of Virtual Reality Assisted Listening Instruction on English as a Foreign Language Learners’ Comprehension and Perceptions
Authors: Rahimi Mehrak , Aghabarari Mozhgan
Published: April 2024

Virtual Reality (VR) as an interactive, illustrative, and immersive learning environment has ample opportunities for the development of language skills. Despite a growing literature on VR-assisted language learning, the benefit of VR for L2 listening is in need of further investigation. To fill this lacuna, the current study surveyed the impact of using 360° monoscopic VR videos as pre-listening tasks on language learners’ development of listening comprehension. Sixty English as a foreign language (EFL) learners participated in the study as the control and the experimental groups. Their entry level of listening comprehension was evaluated by the B1 Preliminary listening paper before the study. Listening was taught to both groups by the comprehension-based model consisting of a pre-during-post listening cycle. The pre-listening activities of the experimental group included watching and working on 360° VR videos related to the topics of the listening parts of the textbook. The pre-listening phase of the control group included the warmup activities of the textbook. Both groups’ listening comprehension was evaluated again at the end of the study. The quantitative data analysis revealed a significant difference between the participants’ listening comprehension in favor of those who had worked with VR video as pre-listening tasks. Also, larger effect sizes for Parts 3 and 4 of the test that focused on understanding monologues were evident. The experimental group members were asked to express their perceptions of the experience of working with 360° VR videos in listening instruction by taking part in a structured interview. The results showed that almost all participants found the activities to be inspiring and pedagogically valuable.
ANTİ-AQUAPORİN 4 ve ANTİ-MİYELİN OLİGODENTROSİT GLİKOPROTEİN ANTİKOR İLİŞKİLİ NÖROMİYELİTİS OPTİKA SPEKTRUM HASTALIĞI TANISI ALAN OLGULARIN KLİNİK ve RADYOLOJİK ÖZELLİKLERİ
Authors: Doğan Ünlü Melike , Demirci Serpil
Published: April 2024

Amaç: Nöromiyelitis Optika Spektrum Hastalığı (NMOSH) tanısı alan ve antikor pozitifliği eşlik eden hastaların klinik, görüntüleme ve laboratuvar bulgularını sunmayı amaçladık.

Hastalar ve Yöntem: Bu retrospektif gözlemsel çalışmaya NMOSH tanısı alan 15 hasta dahil edildi.

Bulgular: Hastalarımızın 11’i kadın, 4’ü erkekti. Hastalığın ortalama başlangıç yaşı 51.27 ± 12.26 idi. İlk klinik atak 3 hastada eş zamanlı optik nörit (ON) ve miyelit iken, 6 hastada miyelit, 5 hastada ON idi. On hastanın aquaporin-4 (AQP-4) IgG antikoru, 5 hastanın miyelin oligodentrosit glikoprotein (MOG) IgG antikoru pozitifti. Altı hastanın beyin omirilik sıvısı (BOS) proteini yüksekti. Sekiz hastanın BOS oligoklonal bantı Tip 1 negatif, 1 hastanın Tip 2 pozitif, 1 hastanın Tip 3 pozitifti. Sekiz hastanın kranial manyetik rezonans görüntülemesi normal iken 1 hastanın multipl skleroz (MS)’a benzer lezyonları vardı. İki hastanın önceden bilinen Sjögren Sendromu (SS) tanısı vardı, 3 hastaya da kliniğimizde SS tanısı koyuldu. Atak tedavisi olarak intravenöz metilprednizolon (1000 mg/gün) ve töropatik plazma değişimi, profilaktik tedavi olarak oral steroid, azatioprin, ritüksimab ve siklofosfamid tekli veya kombinasyon tedavileri verildi.

Sonuç: NMOSH’ı prognoz olarak MS’den daha ağır seyretmektedir. Otoimmün hastalıklardan en sık SS ile birliktelik gösterir. MOG IgG antikor pozitifliği olanların AQP-4 IgG antikor pozitifliği olanlara göre atak ve profilaktik tedaviye yanıtları daha iyi olduğu görülmüştür.
Comparison of the effects of Anesthesia Methods on Dynamic Thiol/Disulfide Homeostasis in Patients with Chronic Obstructive Pulmonary Disease Under Surgical Stress
Authors: Çelik Fatma , Dağlı Recai , İlanbey Bilal
Published: April 2024

Purpose: Chronic Obstructive Pulmonary Disease (COPD) is linked to increased oxidative stress. Changing oxidative stress status due to anesthesia applications may affect surgical stress and the incidence of postoperative complications.

This study aims to contrast the impacts of general anesthesia (GA) and spinal anesthesia (SA) on the dynamic thiol-disulfide homeostasis among patients with COPD who are undergoing inguinal hernia surgery.

Materials and Methods: As per the 2017 Global Strategy Report for the Diagnosis, Management, and Prevention of COPD, patients with airflow obstruction (50% ≤ FEV 1 < 79%) and FEV1/FVC < 0.7 were evaluated. A total of 52 COPD patients, group GA (n= 26) and group SA (n= 26), who were scheduled for inguinal hernia surgery, were included in this observational study. Blood specimens were collected during the preoperative period and at the postoperative 24th hour. Parameters of thiol/disulfide homeostasis were analyzed.

Results: Both in the GA group and the SA group, a decrease in total thiol, native thiol, and disulfide values was observed after anesthesia compared to before anesthesia. However, only in Group SA, the decrease in post-anesthesia total thiol (p
Configuraciones de lo macabro en la escritura de Leopoldo Marechal
Authors: Bravo Herrera Fernanda Elisa
Published: April 2024

El propósito de este trabajo es abordar, desde el comparatismo, las representaciones de lo macabro en Adán Buenosayres de Leopoldo Marechal, a fin de identificar los valores ideológicos que se configuran con el entramado de símbolos e imágenes que apelan a diversas tradiciones. El análisis de las marcas, presentes y difusas en la novela, estudia las diferentes estratificaciones e inscripciones semánticas que construyen el cronotopo de la muerte, comprendido también como genotexto, en cuanto núcleo constante de sentido. Esta lectura explora las diferentes representaciones de lo macabro, es decir, de las imágenes y símbolos vinculados con la muerte, en lo metafísico o religioso, lo político-social y lo poético o metaliterario, series que confluyen en la unidad poético-narrativa e ideológica de la escritura.
Ulises al límite del antropocentrismo: El Banquete de Severo Arcángelo como secuela de Adán Buenosayres
Authors: Cheadle Norman
Published: April 2024

Este trabajo plantea que las dos primeras novelas de Leopoldo Marechal, publicadas respectivamente en 1948 y 1965, comparten una temática que se pone de relieve gracias a dos personajes menores cuya construcción intertextual remite al canto 26 del Inferno, donde Ulises cuenta su historia a Dante. Un análisis comparativo de la composición de ambos personajes, así como de su función en las novelas respectivas, arroja luz sobre la evolución de la visión novelística de Marechal y su exploración del límite del antropocentrismo.
Las ambigüedades de la modernidad en Leopoldo Marechal: tradición y vanguardia en Historia de la calle Corrientes
Authors: Torbidoni Juan
Published: April 2024

Este artículo ofrece un estudio detallado de Historia de la calle Corrientes (1937) de Leopoldo Marechal. El libro, que contiene imágenes del fotógrafo vanguardista Horacio Coppola, fue encargado a Marechal por la Municipalidad de Buenos Aires con ocasión de su cuarto centenario (1536-1936). El trabajo comienza contextualizando el libro dentro del conjunto de la obra de Marechal, para luego explicar cómo el autor se debate entre celebrar el crecimiento de una ciudad que se proyecta hacia el futuro y lamentar la pérdida de un pasado irrecuperable, que queda demolido bajo la transformación de Buenos Aires en metrópolis moderna. Al analizar los distintos actores que participan en el proceso de composición del libro -el encargo de la intendencia, la escritura de Marechal, la fotografía de Coppola, el diseño del tipógrafo y del impresor, el suministro del archivo de coleccionistas- se explicitan las tensiones que atraviesan el libro y, en un sentido más amplio, el proyecto modernista de Buenos Aires a mediados de la década de 1930. La hipótesis es que Historia de la calle Corrientes es una cristalización, en forma de libro, del proyecto estético del clasicismo vanguardista que la intendencia de Buenos Aires buscaba plasmar en su renovación arquitectónica del centro de la ciudad.
Advaya Bot - Radiologist assistant robot development & its usage in healthcare applications
Authors: Sharon Rodrigues  , Shubhangi Saha  , Siddhant Singh  , Vipul Singh  , Dr. Pavithra G  , Dr. T.C.Manjunath
Published: April 2024

In this paper, the Advaya Bot - Radiologist assistant robot development & its usage in healthcare applications is presented. The final year project undertaken by us involves the design and development of a bot that can assist the healthcare professional, specifically in the Department of Radiology. It is a growing concern among the community of radiologists that radiation exposure, even under protocol scenarios, is causing harm to them in the form of cancers, tumors, cataracts, dry eye syndrome, etc. Also, in departments like that of Ultra Sonography imaging, the manual use of a transducer is something not looked forward to by the patients. We aim to build a bot that can reduce radiation exposure, workload, and uncomfortable interactions for the doctors in the department of radiology imaging. The use of such bots is strictly domain-specific. For the purpose of our final project, we have chosen the domain to be that of an Ultrasonography (USG). We aim at eliminating the manual use of the transducer and replacing it with a bot. The bot shall be capable of greeting the patient and adjusting the location of the end-effector with the help of a radiologist or specialist from a distance. The end-edge of the bot will also be capable of placing the transducer with the required pressure on the required area of the patient’s body. In developing countries like India, the ratio of doctors to the number of patients is very low. We aim to unburden healthcare professionals and free them from harmful working conditions. The work carried out is the seventh semester main-project by the students of Electronics & Communication Engineering under the guidance of the faculties supervision (guide).
Design Of Voltage Level Shifter Using Regulated Cross Coupled Pull Up Networks
Authors: Geethanjali G.C  , Dr. Pavithra G  , Dr. T.C.Manjunath
Published: April 2024

Level shifter plays an vital role in multiple supply voltage techniques which creates a path between processors, sensors or broads of different voltage levels, it converts the input logic levels or voltages below the VTH of the transistor to the higher acceptable levels depending upon the system requirements. So, it is necessary to design a level shifter circuit which provides high performance. Power consumption and delay are the key features which determines the performance of a level shifter. This project mainly focuses on designing the level shifter using regulated cross coupled pull up network which helps in utilizing less power and enhancing the speed of the circuit. The work carried out is the mini-project that is a part & parcel of the curriculum in the 2nd semester.
Secure LoRa Wireless Communication for Soldier Tracking with the help of Interfacing Two Arduino Uno Devices in Military Operations
Authors: Apeksha U  , Chithrashree G.S  , Divya N.M  , Shalmali S. Mankikar  , Dr. Pavithra G  , Dr. T.C.Manjunath
Published: April 2024

In this paper, a Secured LoRa Wireless Communication for Soldier Tracking with the help of Interfacing Two Arduino Uno Devices in Military Operations is presented in brief. This segment introduces a robust and highly secure wireless communication system built upon Long-Range (LoRa) technology, tailored for military applications. The proposed system leverages Arduino microcontrollers to establish a dependable data link between two remote military units, ensuring energy-efficient communication across extended distances. We delve into the system's design, implementation, and encryption methodologies employed to fortify data security. Rigorous testing and evaluation substantiate the system's capability to fulfill the stringent requirements of military communications, including long-range coverage, resilience to interference, and data confidentiality. This research significantly advances military communication technologies, providing a practical solution for safeguarded and efficient data exchange between deployed units. While this paper primarily focuses on long-distance communication, it also delves into the field of Automotive Wireless Communication, specifically Vehicle-to-Vehicle Communication, offering an introductory overview of the latter. The work carried out is the second semester mini-project by the students of Electronics & Communication Engineering under the guidance of the faculties.
Comparative Study on Steel Structure Auditorium Estimation
Authors: Sujith P  , Surya Prakash R  , Venkatesh Prasath K  , Anish A  , Dr.K.Thirumalai Raja
Published: April 2024

Construction cost estimation is a critical aspect of project management in the construction industry. Accurate estimation of construction costs, material costs, and labour costs is essential for effective project planning, budgeting, and resource allocation. With the advancement of technology, various software options are available to assist in construction cost estimation, offering different features, advantages, and limitations. In this project report, we have compared different software methods for construction cost estimation, including Microsoft Excel, Estimator 2.0, Primavera P6, and Construction Calculator mobile apps. The report provides an overview of these software options, highlighting their advantages and disadvantages in terms of accuracy, flexibility, efficiency, transparency, customization, collaboration, reporting capabilities, scalability, historical data tracking, user-friendliness, automation, cost-effectiveness, and compatibility. The report also discusses the strengths and limitations of each software option, including potential errors, learning curve, cost of licenses, customization options, updates and maintenance requirements, integration limitations, and platform compatibility. The report concludes by emphasizing the importance of carefully considering the specific needs and requirements of the project and the expertise of the team members when selecting the most suitable software for construction cost estimation.