bluuebunny/crossref_metadata_2025_split huggingface dataset:
Paleomagnetism of the Jurassic complex of the southern slope of the Scythian platform (Tahirjalchay basin, Azerbaijan)
Authors: Garayeva Tahmina , Mehdiyeva Zabita 
Published: April 2024

Abstract

The article presents a detailed stratigraphical division of the Jurassic rock formations on the northern edge of the Great Caucasus Sea Basin in Azerbaijan. The stratigraphy of Jurassic rocks in this region, which corresponds to the southern margin of the Scythian platform, has not been well studied. On the other hand, paleomagnetic research has never been conducted in this area before. The studied region is located on the northern flank of the southeastern part of the mountain-folded system of the Greater Caucasus. To study the paleomagnetic properties of Jurassic rocks, 80 oriented samples were collected from the Tahirjalchay section. The magnetic susceptibility and the natural remnant magnetization of the deposits vary between 0.6 x 10-3 - 1.6 x 10-3 BS and 2.9 x 10-3 - 16.9 x 10-3 A/m, respectively. The average value of the permanent component indicates that the magnetization is close to its initial value and can therefore be used to compile a paleomagnetic profile. Based on paleomagnetic data, for the first time, the kinematic parameters of the Jurassic tectonic blocks on the southern margin of the Scythian Platform were studied. Analysis of the research materials reveals the extent of the angular displacement of the block. In the magnetostratigraphic analysis of the Tahirjalchay section, a total of 5 direct magnetization zones and 5 reverse zones were identified. Using these magnetic zones, the boundaries between different stratigraphic units were determined: Aalenian-Bajocian; Bajocian-Bathonian; Bathonian - Callovian; Callovian - Oxfordian; Oxfordian-Kimmeridgian.
Associations between Monocyte-to-High Density Lipoprotein Ratio and abdominal aortic calcification: Results of a nationwide survey
Authors: Wei Ran , Huang Maoxun 
Published: April 2024

Abstract

Background
Abdominal aortic calcification (AAC), a critical marker for cardiovascular disease, is strongly correlated with metabolic disorders like diabetes and hypertension. Recent studies have highlighted the Monocyte-to-High Density Lipoprotein Ratio (MHR) as a potential biomarker for assessing the risk of atherosclerosis and cardiovascular diseases.
Methods And Results
This cross-sectional study utilized data from the National Health and Nutrition Examination Surveys (NHANES) 2013-2014, focusing on U.S. adults aged 40 years and above. A total of 3017 participants were included, with AAC evaluated using dual-energy X-ray absorptiometry (DXA) scans, and the severity of AAC quantified based on the Kauppila score system. MHR was investigated for its association with AAC severity, employing multiple linear and multivariable logistic regression models to explore the relationship dynamics. After adjusting for potential confounders, including age, sex, race, socioeconomic factors, and other health-related variables, the analysis revealed a significant association between higher MHR levels and increased AAC scores. Participants with elevated MHR exhibited a greater prevalence and severity of AAC.
Conclusions
The study demonstrates a significant association between elevated MHR and the prevalence and severity of AAC, suggesting the utility of MHR as a predictive biomarker for cardiovascular risk assessment. These findings advocate for the inclusion of MHR in cardiovascular disease management and risk stratification protocols.
Microscopic and Spectroscopic insights of antibacterial mechanism of Ag-loaded TiO 2 Electrospun nanofibers
Authors: Khanam Bisma , Anwar Shahzad , Zakria Muhammad , Khan Taj Muhammad , Rahman A. , Adnan Ahmad , Shan Nida Ali , Khan Rafaqat Ali , Raffi Muhammad 
Published: April 2024

Abstract
Pristine TiO2 nanofibers with a range of Ag-loading (wt.% 0, 2, 4, 6 and 8) were prepared by electrospinning technique whose mechanistic insight into their improved antibacterial activity against E.coli as a model microorganism has been investigated. Calcination of as prepared electrospun nanofibers was carried out in ambient air at 500℃ for 3h to promote transformation crystalline phase of TiO2 from anatase to the rutile, removal of reaction moieties and genesis of Ag clusters in these nanofibers. The physicochemical properties of nanofiber samples were analyzed and observed by employing Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Raman spectroscopy. On the whole, these nanofibers have been found to exhibit a smooth surface morphology with minimal beading effect and sustained compositions of the original elements. Heat treatment of the as prepared samples lead to preferential formation of rutile phase as a function of wt.% loading of Ag that strongly supported phase transformation of TiO2 from anatase to rutile. These nanofibers have been tested for their antimicrobial efficacy against the E. Coli bacterium by Well plate method. The results have exhibited formation of consistent zones of inhibition and log10 CFU/mL with the rising content of Ag loading in the TiO2 matrix, while highest antimicrobial efficacy has been observed with the sample containing 8wt.% of Ag loading. Confocal microscopy and Scanning electron microscopy analysis of treated bacterial samples has disclosed the interaction between nanofibers and bacterial cells, resulting into disruption of cell membrane. This disruption led to the leakage of cell contents and ultimately causing bacterial cell death.
Livelihood and Beyond Relations of Local Communities with Sundarban Mangroves
Authors: Biswas Camellia , Channarayapatna Sharada , Pandey Chhavi Nath 
Published: April 2024

Abstract
This paper delves into the multifarious relationship between the Sundarban Mangrove Forest and the adjacent villages, extending beyond mere livelihood earnings, to reveal the intricate dynamics of cultural/traditional practices with environmental challenges and modern adaptations in the selected villages of the Sundarbans region of West Bengal, India. Through three occupational case studies, it elucidates how local communities perceive and engage with mangrove ecosystems, illustrating both direct and indirect dependencies on these vital resources. The study reveals a profound symbiosis between humans and mangroves, extending beyond economic transactions to encompass socio-cultural, political, and ecological dimensions. Employing a thematic framework, it examines how traditional ecological knowledge (TEK) informs local decision-making and adaptation strategies in the face of climate change. Methodologically, the study employs a 'multiple methods' approach, integrating oral narratives, household surveys, and participatory learning methods to capture diverse perspectives and insights. The findings underscore the intrinsic link between livelihoods and community governance, highlighting the politicization of resource access and management. Despite challenges, the paper demonstrates the resilience of traditional practices and the adaptive capacity of local communities. However, it also warns against the pitfalls of unsustainable practices and the need for equitable access to resources. Ultimately, this study contributes to a nuanced understanding of human-mangrove interactions and calls for a holistic approach to conservation that integrates traditional wisdom with contemporary scientific knowledge.
Prevalence and influencing factors of poor body posture among university students: a cross-sectional study from a university in eastern China
Authors: Feng Dan , Zhang Yong , Li Hui Min , Zeng Quan Wen , Yuan Jin 
Published: April 2024

Abstract

Background: Existing studies have found that the severity of abnormal body posture is significantly and positively correlated with the prevalence of pain and musculoskeletal disorders in humans. College students belong to a sedentary population and obesity is common among them. Existing research on body posture has mainly focused on children and adolescents but lacks in-depth exploration of this issue in the college population. Therefore, the present study was conducted to investigate the correlation between college students' lifestyle habits and abnormal body posture by assessing the body posture of current college students.
Methods: From September 2023 to February 2024, 1545 randomly selected college students from Anhui Polytechnic University were assessed for body posture and surveyed for their living habits using the Posture-Analyzer (AFA-50) and the College Student Living Habits Questionnaire. Data were statistically analyzed using x2 test and logistic regression analysis (α=0.05).
Results: The detection rate of poor body posture among college students was 65.5%; Group differences in abnormal detection rates existed and were statistically significant (p < 0.05) for gender, place of residence, and BMI; Among them, the rate of the abnormal body posture of college students in rural residence areas was 82.05%, while the rate of the abnormal body posture of college students in urban residence areas was 51.72%, and the difference was statistically significant (p < 0.001); There is a correlation between healthy body posture development and lifestyle habits: Physical exercise of appropriate intensity and adequate sleep are positive factors in preventing and improving poor body posture; In contrast, excessive daily screen time, sedentary behaviors and high frequency of snacking behaviors are negative factors.
Conclusion: This study found that the daily life behavioral habits of college students have an important influence on the development of body posture, and changing the relevant influencing factors (physical exercise, dietary habits, etc.), can help to reduce the detection rate of abnormal body posture among college students, and to prevent and improve musculoskeletal disorders accompanying poor body posture.
Thiel cadaver eye as a training model for sub-Tenon blocks: a feasibility study
Authors: Lersch Friedrich , Schnidrig Damian , Boemke Susanne , Djonov Valentin , Heussen Florian M. 
Published: April 2024

Abstract

Background: Regional anesthesia education, especially for ocular procedures, necessitates reliable surgical training models. While cadaveric models offer anatomical fidelity, conventional embalming methods may compromise tissue integrity. We aimed to assess the effectiveness of Thiel cadavers for training in sub-Tenon blocks by evaluating ocular tissues and measuring insertion forces.
Methods: Experimental design, using twenty eyes from ten Thiel cadaver heads. These cadavers were specifically prepared to test the administration of sub-Tenon blocks. The research was conducted in a controlled laboratory setting appropriate for handling cadaveric materials and conducting precise measurements. Each cadaver eye underwent an initial ultrasound examination, and its axial length was noted. An intravitreal injection of heptastarch solution followed, to re-establish the eye's sphericity. After this volume injection, the axial length and intraocular pressure were measured again. Mock sub-Tenon blocks were administered in 2 separate quadrants of the eye, with insertion forces measured using a pressure gauge. Main outcome measurements were macroscopic assessment of the ocular tissue layers and the insertion forces required for the sub-Tenon blocks.
Results: Four of twenty eyes (20%) retained near-natural sphericity, with the remaining requiring volume injection to approximate physiological shape and pressure. The conjunctiva and Tenon’s layer were intact, and correct cannula placement was achieved in all cases. The average maximum cannula insertion force was 2.92 Newtons.
Conclusion: These findings suggest that Thiel cadavers are a promising model for training in sub-Tenon blocks, despite the challenge of often desiccated and involuted eyes.
Evaluation of early development of 6-month-old babies in the case of maternal post-partum depression
Authors: Guivarch Jokthan , Persia Mélanie-Lou , Grandgeorge Pauline , Pergeline Hugo , Dugnat Michel , Treut Laure Le , Poinso François , Varoquaux Arthur , Fernandez Arnaud 
Published: April 2024

Abstract

Background: Postpartum depression can negatively affect the first interactions with the child and, consequently, his or her emotional, social and cognitive development. The aim of the current study was to investigate 6-month-old children's global development whose mother is suffering from postpartum depression.
Methods: This is a descriptive retrospective study. Our studied population was 6-month-old babies hospitalized with their mothers at the Marseille mother-baby unit for maternal postpartum depression. The mothers were diagnosed clinically by a psychiatrist specialized in postpartum depression using DSM-5; child development was assessed at 6 months by an independent healthcare professional using the Brunet-Lezine Scale.
Results: We followed 40 mother-infant dyads. None of the 40 children had a global developmental delay. However, maternal depression was significantly associated with poorer sociability and with a lower level of posture development of infants at 6 months of age. Posture development was significantly lower in children of bipolar mothers than in children of non-bipolar mothers. Children’s development quotients were more impaired in cases of maternal anxiety comorbidity.
Conclusions: The findings indicate that postpartum depression was associated with a weakness in sociability and posture at 6-month development of the child.
Synergistic Modeling of Liquid Properties: Integrating Neural Network-Derived Molecular Features with Modified Kernel Models
Authors: Lim Hyuntae , Jung YounJoon 
Published: April 2024

Abstract

A significant challenge in applying machine learning to computational chemistry, particularly considering the growing complexity of contemporary machine learning models, is the scarcity of available experimental data. To address this issue, we introduce an approach that derives molecular features from an intricate neural network-based model and applies them to a simpler conventional machine learning model that is robust to overfitting. This method can be applied to predict various properties of a liquid system, including viscosity or surface tension, based on molecular features drawn from the ab initio-calculated free energy of solvation. Furthermore, we propose a modified kernel model that includes Arrhenius temperature dependence to incorporate theoretical principles and diminish extreme nonlinearity in the model. The modified kernel model demonstrated significant improvements in certain scenarios and possible extensions to various theoretical concepts of molecular systems.
Experimental Study on Nuclear Power Plant Operators’ Performance during a Major Earthquake with Aftershocks
Authors: Hirose Ayako , Nonose Kohei , Takeda Daisuke 
Published: April 2024

Abstract
Experiments were conducted to clarify the effects of seismic motion and aftershocks on the performance and physiological and psychological states of nuclear power plant operators. Nine reactor operators (average experience: 5.2 years) responded to various events associated with a great earthquake using a virtual reality simulator that simulated the main control room and plant behavior and a chair-type earthquake simulator. The experimental conditions were the presence and absence of vibrations. For each condition, the differences in the following indices were analyzed: The errors and utterances made during plant response were performance indices; cardiac sympathetic index, cardiac vagal index, and skin conductance level were physiological indices; and responses to a questionnaire on stress were psychological indices. Results revealed that operators experienced transient physiological stress at the time of the main shock, and felt the seismic motion’s effects on plant operations, such as “delay in initial response” and “disruption of priorities,” which did not seem threatening. They did not perceive any impact on performance. For aftershocks, it was found that the motion of the aftershocks themselves had almost no effect on the operators, but that the presence of aftershocks increased omission errors for events occurring immediately before the aftershocks, and that “work interruption” and “changes in plant conditions” due to aftershocks had affected them. Adding a seismic vibration experience using a simulated environment to regular training will contribute to the collection of performance data for operators and improve operators’ preparedness for earthquakes.
Asymmetric bilateral radial artery variations with embryological view: A case report
Authors: Afshar Azar , Aghajanpour Fakhroddin , Soltani Reza , Kasmaie Farshad Moharrami , Masteri-farahani Reza , Abbaszadeh Hojatollah , Nourozian Mohsen , Amini Abdollah , fadaefathabadi fatemeh 
Published: April 2024

Abstract
Purpose
Similar to other parts of the body, variations in the arterial pattern of the upper limbs have been reported in different studies. According to the different stages of arterial system development, variations are created owing to disturbances in this process. Therefore, each variation could be justified based on the formation method. One of the most important arteries of the upper limb is the radial artery, which forms in several stages. Therefore, variations in this artery with a different origin from the normal state can be observed. However, its origin in the axillary artery is rare.
Methods
In this report, during the dissection of a 45-years-old man, variation in the origin of the radial artery was seen bilaterally.
Result
This arterial pattern was asymmetric and was seen as follows: On the right side, the radial artery was separated from the axillary artery on the medial side of the artery. It runs parallel to the brachial artery on its medial side, crossing it at the cubital fossa. On the left side, the radial artery was separated from the lateral side of the brachial artery in the middle of the arm and enters the forearm by passing through the external side of the arm.
Conclusion
The brachial and radial arteries are the most important arteries in the upper limbs for diagnostic and therapeutic intervention. Therefore, knowledge of the types of arterial variations and their frequencies can play an effective role in preventing medical errors.
Emergence and Global Spread of a Dominant Multidrug-Resistant Variant in Acinetobacter baumannii
Authors: Zhou Zhemin , Li Shengkai , Li Heng , Jiang Guilai , Wang Shengke , Wang Min , Wu Yilei , Liu Xiao , Zhong Ling , Xie Shichang , Ren Yi , Lou Yongliang , Du Jimei 
Published: April 2024

Abstract
The proliferation of multi-drug resistant (MDR) bacteria is driven by the global spread of epidemic lineages that accumulate antimicrobial resistance genes (ARGs). Acinetobacter baumannii, a leading cause of nosocomial infections, displays resistance to most frontline antimicrobials and represents a significant challenge to public health. In this study, we conduct a comprehensive genomic analysis of over 15,000 A. baumannii genomes to identify a predominant epidemic super-lineage (ESL) accounting for approximately 70% of global isolates. Through hierarchical classification of the ESL into distinct lineages, clades, and variants, we identified a stepwise evolutionary trajectory responsible for the worldwide expansion and transmission of A. baumannii over the last eight decades. Particularly, we observed the rise and global spread of a previously unrecognized Variant 2.5.6, which emerged in East Asia in 2006. The epidemic of the variant is linked to the ongoing acquisition of antimicrobial resistance genes (ARGs) and virulence factors facilitated by genetic recombination. Our results highlight the necessity for One Health-oriented research and interventions to address the spread of this MDR pathogen.
Unraveling the Complexity of Area Postrema Lesions: Insights from Neuromyelitis Optica Spectrum Disorder and Beyond
Authors: Li Jing , yang yan , Hu ya , Jia xiangdong , ge junling , yao guoen 
Published: April 2024

Abstract

Lesions in the area postrema may lead to symptoms including hiccupping, nausea, and vomiting. Often termed area postrema syndrome, these symptoms are commonly linked to neuromyelitis optica spectrum disorders (NMOSD). This study analyzes two case studies to illustrate the varied clinical manifestations of area postrema lesions. The first case involves a 57-year-old male presenting with persistent symptoms of nausea, vomiting, and dizziness. Subsequent examination led to a diagnosis of WHO Grade II astrocytoma. The second case details a 24-year-old woman with hiccupping, deteriorating vision, incontinence, and limb numbness. She was subsequently diagnosed with concurrent neuromyelitis optica spectrum disorder (NMOSD) and Sjögren's syndrome. Importantly, the second case showed distinct gastrointestinal symptoms before treatment, leading to a crucial diagnosis of lesions in the posterior medullary region. These case studies highlight the risk of misdiagnosis and underscore the importance of quickly recognizing posterior medulla-related symptoms. A deep understanding of postrema lesions is essential for accurate diagnosis and prompt management. This underscores the need for a comprehensive clinical approach to enhance patient outcomes.
Magneto-electric spin resonance of Cu 2+ dimer associate in BaF 2 single crystal
Authors: Tarasov V. F. , Zaripov R. B. , Ulanov V. A. 
Published: April 2024

Abstract

The unusual resonance lines were observed in continuous wave electron paramagnetic resonance spectra of dimer associate of Cu2+ ions in BaF2 single crystal. The phase of these lines was significantly shifted from the phase of magnetic field modulation. We associate the appearance of these lines with special features of the high-spin electron systems under resonance interaction with microwave electromagnetic field. We take in to account that under resonance excitation of the high-spin electron spin magnetic dipole orientation transforms to quadrupole alignment, and there is the reversible mutual transformation of the dipole and quadrupole degrees of freedom. Simultaneous excitation of magnetic dipole and electric quadrupole resonance transitions in a dielectric resonator of an electron paramagnetic resonance spectrometer results in appearance of the phase shifted resonance lines.
Using nano polymeric micelles based on beta cyclodextrin for the targeted delivery of bosentan drug
Authors: Ameli Hossein , Alizadeh Nina 
Published: April 2024

Abstract
The drugs formulation have been considered based on the micelles of polymeric nanoparticles in the past decades. It has shown that these Nano polymeric micelles (Nano PMs) help to increase accessibility to homeland, decreasing side effects and getting long of drug dissemination. The purpose of this study is optimization of the bosentan drug formula using polymer nanomicelles and cyclodextrins. The pH-responsive copolymer was prepared and the variables of loading time, loading temperature, the ratio of CP5 copolymer to drug and the ratio of cyclodextrin to drug and the effect of these variables on the percentage of drug loading were investigated. In this work, first, a Definitive Screening Design was used to investigate the effect of variables on drug loading percentage. This method provides the possibility of significantly reducing the number of tests required to check systems that are characterized by a large number of variables. In the optimized formula for the drug, the loading temperature was 43 °C and the time was 4.25 hours, as well as the ratio of CP5 copolymer to the drug was 4.7 and the ratio of cyclodextrin to the drug was 2.4 to reach the maximum efficiency of 84.5% drug entrapment. The release was carried out in laboratory conditions at pH 1.2 and 7.4 and at a temperature of 37 °C for 24 hours, 95% of the drug was released, which showed that the release of the drug was completely targeted and controlled. Therefore, according to the obtained results, we can hope that polymer nanomicelles with cyclodextrin are potential and efficient carriers for targeted delivery with sustained release of drugs.