bluuebunny/crossref_metadata_2025_split huggingface dataset:
A cohort analysis of incidence and antepartum risk factors of severe postpartum haemorrhage in anaemic pregnant women in Lagos, Nigeria
Authors: OKUNADE Kehinde S. , OYEDEJI Olufemi A. , OLOWOSELU Festus O. , ADEJIMI Adebola A. , OLOWE Atinuke , OLUMODEJI Ayokunle , ADELABU Hameed , ADEMUYIWA Iyabo Y. , OSHODI Yusuf A. , UGWU Aloy O. , ADENEKAN Muisi A. , OJO Temitope , TOKS-OMAGE Eselobu , AKINMOLA Olukayode O. , OLUWOLE Ayodeji A. , OLAMIJULO Joseph A. 
Published: January 2024

Abstract
Background:The magnitude and risk factors for
postpartum haemorrhage (PPH) have been extensively investigated,
although little is currently known about the incidence and
predictors of severe PPH, specifically among women affected by
prenatal anaemia in Nigeria.

Objectives: We determined the incidence and antepartum risk factors of severe PPH in anaemic pregnant women in five health institutions in Lagos, Southwest Nigeria.
Methods: We performed a secondary analysis of the data of pregnant women with anaemia from the "Predict-PPH" study conducted between January and June 2023. This study included n=570 pregnant women affected by anaemia who gave birth in five hospitals in the Lagos metropolis of Nigeria. The study outcome was severe PPH, defined as estimated blood loss of at least 1000 mL within 24 hours of childbirth. We utilized a backward stepwise conditional approach in a multivariable logistic regression model to highlight the independent risk factors associated with severe PPH.
Results: Of the 570 women with prenatal anaemia enrolled in the primary study, 42 (7·4%) had severe PPH. The identified independent risk factors of severe PPH were maternal obesity (adjusted odds ratio=3.85, 95% confidence interval: 1.85–8.02), antepartum haemorrhage in index pregnancy (adjusted odds ratio=2.98, 95% confidence interval: 1.29–6.90), uterine fibroids (adjusted odds ratio=6.10, 95% confidence interval: 2.39–15.52), delivery gestational age ≥39 weeks (adjusted odds ratio=2.62, 95% confidence interval: 1.23–5.56) and delivery by caesarean birth (adjusted odds ratio=16.75, 95% confidence interval: 5.81–48.31).
Conclusion: Compared to the general women population, we reported a relatively higher incidence of severe PPH in anaemic pregnant women. Maternal obesity, antepartum bleeding in the current pregnancy, co-existing uterine fibroids in pregnancy, delivery gestational age beyond 38 weeks, and caesarean birth in the current pregnancy were factors that were significantly associated with severe PPH in anaemic pregnant women. These underscore the importance of heightened vigilance during both the antenatal and peripartum periods to identify women with these risk factors for initiation of timely interventions to prevent severe PPH.
Menstrual Waste Management Practices Among Female Students in Niger Delta Development Commission Hostels in Tertiary Institutions in Niger Delta, Nigeria
Authors: IKOGHO Doris Eseoghene , ONOHARIGHO Dafe Festus 
Published: January 2024

Abstract
Menstrual waste management practices are all the activities that women and girls put together from the time the menstruation starts till it ceases. Managing high level of hygiene can be problematic for many women and girls especially when they are out of the comfort of their homes. The focus of this study is to examine the menstrual waste management practices among female students in hostels built by the Niger Delta Development Commission in tertiary institutions in Niger Delta region. The population for the study was made up of female students of NDDC hostels in 3 tertiary schools in the Niger Delta region. All of whom are all 100 level. With a population of 820. The sample of the study was 415 selected using simple systematic sampling technique. The instrument used for data collection was a questionnaire with a reliability coefficient of 0.8. Permission to carry out this study was obtained from the Ethical committee and informed consent was also sought. Results show that cotton wool, regular pads, and sanitary napkins are the common materials used by female students, used pads are disposed in designated bin, buried in pit, or burnt among others. The health risks in managing menstrual waste varies, while global guidelines for menstrual waste management are; access to clean water supply,use of designated bin but no promotion of awareness to dispel myths to reduce stigma.
Recommendations include health education programs to create more awareness and and collaborative efforts between students, school authorities, and government agencies to improve menstrual waste management in NDDC built hostels.
Mineral and Phytochemical Contents of Selected Insects and the Possibility of Their Inclusion in Diets for Livestock
Authors: Malematja Emmanuel , Mabelebele Monnye , Kolobe Sekobane , Sebola Nthabiseng , Manyelo Tlou 
Published: January 2024

Abstract

The present study aimed to quantify the mineral and phytochemical contents of three commonly consumed insect species found in southern Africa. The mineral contents were analysed using inductively coupled plasma-atomic emission spectroscopy, while the phenolic compounds were determined using liquid chromatography-electrospray ionisation quadrupole time-of-flight mass spectrometry. The results obtained demonstrate that locusts recorded the highest potassium and sodium than in stinkbugs and termites, respectively. Phosphorus was recorded the highest in termites than in stinkbugs and locusts. Furthermore, stinkbugs have the highest magnesium whereas the lowest concentrations were recorded in termites and locusts. With exception for iron, copper, manganese, and zinc were recorded higher in termites than in stinkbugs and locusts. Phenolic compounds such as Rehmaglutin D, Floripavidine, Rosmarinic acid, Acerosin, and Hyacinthacine C1;(+)-Hyacinthacine C were identified in abundance in termites. Crotanecine, 7beta-Hydroxycatuabine D, Acerosin, and N-Hydroxyannomontine were detected in abundance in stinkbugs. Principal component analysis (PCA) revealed significant differences in the phenolic compounds profile, among insect species studied. Therefore, it can be concluded that the three edible insects contain sufficient minerals and exhibit considerable amounts of phenolic compounds that make these insects a potential source of minerals and pharmacology for use in livestock diets.
Characteristics of surrounding rock damage and control technology of a facing-mining excavating roadway in north Shanxi mining area
Authors: Zhang Li-Xin , Yi Li , Gang Li , Liu Guang-Chao , Deng Ze-Hui , Mi Jia-Le 
Published: January 2024

Abstract
A coal mine in the northern region of Shaanxi Province, China, there is a facing-mining excavating roadway, to make the facing-mining excavating roadway to be retained for the next working face safety services. In this paper, the deformation and damage characteristics of the surrounding rock of the roadway in different periods are investigated by using FLAC 3D numerical simulation with the facing-mining excavating Roadway of this coal mine as the research background. At 20m ahead of the working face, a discontinuous plastic zone appeared in the surrounding rock of the roadway, and this phenomenon is a plastic zone jumping through due to the different hardness of the lithology. Real-time monitoring of the stability of the roadway is carried out using on-site measurement, and the roadway is affected by a large amount of mining in the 50m point of the working face in front of the roadway. Based on the numerical simulation and on-site monitoring results, the support strength was increased at 50m of the roadway over the working face, and a new support program was adopted. In the lagging section of the roadway, where the mine pressure is strongly manifested, anchor rods and anchor ropes with W steel belts are used to carry out differentiated reinforcing support, and the on-site effect is good.
Geographically isolated wetlands have higher alpha diversity than surrounding uplands in pine savanna ecosystems
Authors: Heitmann Jackson Barratt , Folk Travis H. , Lord Lisa J. , McGlinn Daniel J. 
Published: January 2024

Abstract

Geographically isolated wetlands are a critical habitat for many amphibian and plant species, yet it is not clear if they also support higher biodiversity of songbirds. Biodiversity monitoring is crucial to preserving imperiled species and communities of birds; however, most studies have relied only on species richness without recognizing the multi-scale and multi-component nature of biodiversity. The purpose of this study was to use the Measurement of Biodiversity (MoB) framework to examine changes in biodiversity of songbird communities in geographically isolated wetlands distributed across pine savanna ecosystems at multiple spatial scales (α, β, and γ), using metrics that account for differences in abundance and sampling effort (rarefied richness (Sn) and evenness (SPIE)). Specifically, we tested if bird biodiversity was higher in geographically isolated wetlands compared to surrounding upland savannas (α-diversity), and if the degree of species turnover (β-diversity) was different within wetlands and uplands. We conducted avian point count surveys of n = 19 wetlands and n = 6 uplands in 2021, and n = 30 wetlands and n = 6 uplands in 2022, on 2 properties with pine savanna habitats. We used direct ordination methods, and linear mixed effect models to analyze differences in bird biodiversity and community composition in geographically isolated wetlands compared to surrounding uplands. We found that wetlands had significantly higher abundance (N), species richness (S), rarefied richness (Sn) and evenness (SPIE) than uplands at the α-scale. β-diversity was low in both wetland and upland habitats, and was not significantly different between habitats, indicating very little species turnover regionally within habitat types. Geographically isolated wetlands are important repositories of bird biodiversity, and should be prioritized by land managers for their ecological value.
An Efficient Deep Learning Technique for Brain Abnormality Detection Using MRI Images
Authors: Mahajan Shilpa , Dhull Anuradha , Dahiya Aryan 
Published: January 2024

Abstract
This study focuses on leveraging advanced medical imaging techniques, encompassing X-rays and MRIs, to effectively detect brain anomalies, notably tumors. The conventional manual examination approach is time-intensive and often suboptimal. The study proposes a novel method employing machine learning algorithms to categorize 700 patient images as either "brain" or "non-brain" following meticulous labelling and preprocessing. The binary classification comprises "Normal" and "Abnormal" classes, with model accuracy refined through adjustments and augmented training on expanded datasets. Through comprehensive model evaluation including ANN, CNN, VGG-16, and AlexNet, the VGG-16-based model emerges with the highest accuracy at 94.4%. This research underscores the immense potential of advanced deep learning, ensuring swift and precise brain abnormality detection in medical imaging with significant clinical implications.
Effects of text modification on reading comprehension and reading motivation of Ethiopian secondary school students
Authors: Kenefergib Asefa , Amogne Dawit , Teklesellassie Yinager 
Published: January 2024

Abstract
This study endeavored to study the effects of text modification on secondary school students’ reading comprehension and motivation towards reading. The design of the study was quasi-experimental pre-test/post-test control experimental groups. The study followed a mixed-method approach to data gathering and data analysis. Test and, questionnaire, were used to obtain data from the participants. A Likert scale reading motivation questionnaire was given to the participants in the treatment group to know their motivation towards reading. The reading texts in the students' textbook were modified in a way that caters for the needs of the students. The experimental group was taught using modified texts while the control group was taught with baseline texts of teaching that schools practiced. The data were analyzed through one way ANOVA. The findings indicated that delivering classes through modifying the text could bring a tremendous change in their reading comprehension and motivation towards reading. Based on the overall findings, it is possible to conclude that providing modified texts could help in enhancing secondary school students’ reading comprehension and motivation towards reading.
A Compact Four Port MIMO Antenna Configuration for Ultra-Wideband (UWB) and Other Wireless Applications
Authors: Mandal Sayantan , Das Swarup 
Published: January 2024

Abstract
In this article, a compact planar four port Multiple-Input-Multiple-Output (MIMO) antenna configuration with an electrical dimension of 0.44λ × 0.44λ has been presented for Ultra wideband (UWB) operation and other wireless communication services. The proposed MIMO antenna consists of four identical microstrip line fed octagonal shaped patch antenna which are placed orthogonally to each other. In order to obtain required impedance bandwidth and desired isolation between antenna elements, modifications are made on ground plane and a circular metallic stub is inserted at the center of substrate. All the identical antenna elements operate from 2.62GHz to 20GHz covering the entire frequency band allotted to UWB operation. The isolation between different antenna elements is also obtained more than 15dB for the entire frequency range of impedance bandwidth. The proposed design also exhibits suitable radiation pattern with sufficient amount of gain. Different diversity performance parameters of the proposed design are observed to be within accepted limit. The time domain performance of the proposed design is also analysed in terms of group delay which further confirms the application of the proposed design as a UWB MIMO antenna configuration.
Life Cycle Assessment of Aerogels: A Critical Review
Authors: KARA Ilkay TURHAN , KIYAK Baris , GUNES Neslihan COLAK , YUCEL Sevil 
Published: January 2024

Abstract

Over the past decade, aerogel sustainability has emerged as a pivotal area, revealing insights and identifying significant gaps. Exploring the sustainability dynamics of aerogel production, this study utilizes the robust methodology of Life Cycle Assessment to navigate environmental complexities. This study created a road map for sustainable aerogel production by analyzing Life Cycle Assessment studies in the literature. The outcomes of the review acknowledge the diversity in precursors, solvents, and production techniques, highlighting the urgency to bridge these disparities for a sustainable aerogel production path. The majority of studies have examined aerogel production from cradle to laboratory gate. Regarding sustainability, there are gaps in the use and end-of-life phases depending on the application areas for cradle to grave. For this purpose, functional units mutually agreed upon according to their application areas are needed. Moreover, the most significant contributors to environmental impacts are precursors, solvents, and drying techniques. These contributors are compared comprehensively in this review. Findings have emerged that aerogel productions should be examined synergistically to shed light on the debate about which technique is more environmentally friendly, especially for aerogel drying. Finally, sustainability suggestions were made by identifying gaps in the aerogel Life Cycle Assessment with comprehensive hotspots.
A novel hydrophobic butyl rubber damping composites modified with environmentally friendly bio-based PF/DBA via constructing three-dimensional network
Authors: Hu Zhenguo , Chen Zeyu , Meng Fuliang , Zhang Yimiao , Jia Yufei , Fei Hongwei , Li Songjun , Yuan Xinhua 
Published: January 2024

Abstract
It is of interest to develop wide-temperature domain damped hydrophobic materials. In this paper, we designed incorporating bio-based phenolic resin into the IIR matrix and introducing dibenzyl fork acetone (DBA) into the main chain structure with sodium hydroxide activation to construct three-dimensional network. The added bio-based phenolic resin has reticulated structure blended with butyl rubber, combined with sodium hydride activation-modified IIR. The results show that sodium hydride activated modification of DBA is introduced into the main chain structure of IIR by infrared and 1H NMR analysis. The material hydrophobic is realized by the introduction of DBA with static water contact angle of 103.5°. The addition of 10phr lignin-based phenolic resin (LPF) is compatible with IIR, and the torque can reach 7.0N-m. The tensile elongation of the modified butyl rubber composite can reach 2400% with tensile strength up to 11.43 MPa, while the damping factor can reach 0.37 even at 70°C. The thermal stability of the composites is enhanced with mass retention rate of 28%. The bio-based PF/NaH activation-modified butyl rubber damping material has potential applications in damping hydrophobicity with wide temperature range.
BlueMIC: Coordination for Mitigating Inter-Piconet Interference in BLE5 Networks
Authors: Khanmirza Hamed , Teymoori Peyman 
Published: January 2024

Abstract

The proliferation of Bluetooth Low Energy (BLE) in diverse applications has led to a dense clustering of piconets in confined spaces. BLE operates within the congested 2.4GHz ISM band, shared by numerous short-range wireless protocols. Frequency hopping and Adaptive Frequency Hopping (AFH) mechanisms have been introduced in Bluetooth to reduce interference with other protocols in the same band. However, research shows these mechanisms are ineffective in reducing inter-piconet interferences. These studies have demonstrated the relationship between the number of piconets and the level of interference. In this paper, we investigate the relationship between the similarity of channel maps and the number of neighboring piconets in interference intensity. Then, we present a light and practical coordination framework to address this challenge. Our solution employs a BLE gateway to detect its surrounding piconet masters and computes a better channel map to reduce the impact of inter-piconet interferences. We also introduce the Isolated Channels (ICA) algorithm for channel allocation of neighboring piconets with controlled channel overlaps for BLE5. Simulation results show a 20 to 60% reduction of interference level in environments with high to moderate inter-piconet interferences. To the best of our knowledge, this is the first practical BLE5-compatible solution for mitigating the inter-piconet interference problem and does not require modifying the standard stack.
Artificial intelligence in university education: Systematic review
Authors: López-Regalado Oscar , Núñez-Rojas Nemecio , López-Gil Oscar Rafael , Lloclla-Gonzáles Herry , Sánchez-Rodríguez Jose 
Published: January 2024

Abstract
Frequent changes in university education have been structurally disrupted by the incorporation of artificial intelligence (AI), through the use of the latest tools and applications by students and teachers in the teaching-learning process. The objective of this study was to analyze and interpret the bibliometric results of biblioshiny on artificial intelligence in university education, as well as to assess its contributions in the period from 2019 to 2023. The method applied is the systematic and bibliometric review with the purpose of answering the specific research questions, by means of clear, systematic, and replicable search methods; for which a universe of 917 publications indexed in Scopus, WoS and PubMed was accessed and a sample of 59 scientific articles was selected. The results indicate that the majority of publications have been made in China, followed by Spain and the United States, and there is also little evidence of collaboration among researchers, dispersion in specific topics and isolation in small networks. In the universities, the application of artificial intelligence tools is being reported, but with the demand to educate in their correct use for the development of deep learning with the activation of higher cognitive processes in students, for which the pedagogical orientation of teachers trained in this subject is required.
Evaluation of wakefulness electroencephalogram in OSA patients
Authors: Pereira Isabel , Guerra Patrícia , Pinto Nuno , Alfaiate Daniel , Pereira Alexandre 
Published: January 2024

Abstract
Objective
Obstructive sleep apnea (OSA) has been associated with an elevated cardiovascular risk, increased daytime sleepiness, cognitive decline, and slower electroencephalographic activity (EEG). This study assesses EEG patterns during wakefulness in OSA patients compared to those without sleep-disordered breathing.
Material and methods
This retrospective study analyzed 30 OSA patients with an Apnea/Hypopnea Index (AHI) of 15 or higher, as well as 29 individuals without sleep-disordered breathing (AHI of 5 or lower) who underwent hospital polysomnography and met all inclusion criteria. Sociodemographic and EEG data were obtained from the sleep laboratory database. Blinded EEG analysis was conducted by two observers, assessing activity in the frontal, central, and occipital regions.
Results
No significant differences were observed in EEG activity between OSA and non-OSA patients. However, a weak correlation was found between decreased C3 EEG frequency and higher AHI (p = 0.033), as well as increased total sleep time and higher O2 EEG frequency (p = 0.038). Lower amplitudes in C3 (p = 0.043) and O1 (p = 0.031) were correlated with reduced average oxygen saturation.
Conclusion
Our findings suggest that OSA-related hypoxemia may impact neuronal activity, highlighting the need to address this sleep-disordered breathing in order to potentially prevent the cognitive decline observed in OSA patients.
Embodiment of the Manhood in Folklore: Keeping Secret from Women in Azerbaijan in the Context of a Real and Virtual Social Environment
Authors: Guliyev Hikmet , Garayev Safa 
Published: January 2024

This article investigates reasons for keeping secrets from women in real and virtual social environment of Azerbaijan through a manhood perspective. The investigation has revealed that the masculinity within the society creates the folklore patterns that prohibit the transfer of the secrets of this gender group to women and on the other hand, prohibit the connection of women with the male social environment.
The attitudes supporting manhood are not expressed directly in the folklore texts, but are articulated sporadically, yet their symbolic manifestations influence all the events in the text. In general, investigating the psychosocial complexes within folklore provides extensive opportunities for the study of creative facts in a projective context. In this article, the embodiment of manhood in folklore has been analyzed based on Azerbaijani fairy-tales, jokes and proverbs. The results of the research reveal that sharing a secret to a woman is constructed as deprivation of manhood in the socio-cultural environment of Azerbaijan.
In this article, the concept of the men’s keeping secrets from the women has also been investigated within the framework of the Azerbaijani-language virtual social environment. The examples from the Internet sources considering Azerbaijani folklore, which have recently become the cultural reality, have been selected and analyzed in order to explain manhood stereotypes. The results of the investigation show that unlike the traditional folklore facts, the concept of the men’s keeping secrets from the women in the virtual social environment is presented in a more ironic and comic manner. The urgency to examine manhood stereotypes in the context of humor and irony is explained through introducing the alternatives to the tradition and free attitude to the stereotypes of Internet folklore.