bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hybrid Phase Unwrapping Approach for InSAR Interferometry: Content-Based Interpolation &amp; Adaptive Phase Unwrapping
Authors: omar Hadj Sahraoui , faouzi berrichi , Chamakhi Djemoui , Dif Amar 
Published: May 2024

Abstract

In this research article, we present a novel hybrid approach for phase unwrapping in Interferometric Synthetic Aperture Radar (InSAR) interferometry. Our proposed method combines Content-Based Interpolation (CBI) techniques with Adaptive Phase Unwrapping (APU) algorithms to address the challenges associated with phase unwrapping in complex interferograms. Content-Based Interpolation utilizes the spatial and spectral characteristics of the interferogram to interpolate phase values in regions of missing or unreliable data, while Adaptive Phase Unwrapping adapts the unwrapping process to the local phase gradient, enhancing the robustness and accuracy of the unwrapped phase. We demonstrate the effectiveness of our hybrid approach through experiments conducted on synthetic and real InSAR data, showing significant improvements in phase unwrapping accuracy and reliability compared to traditional methods. Our proposed hybrid phase unwrapping approach offers a promising solution for enhancing the quality of InSAR interferograms and advancing the capabilities of remote sensing applications such as terrain deformation monitoring, surface displacement analysis, and topographic mapping [1][2][10].
By exploiting the phase of the coherent radar signal, interferometry has transformed radar remote sensing from a largely interpretive science to a quantitative tool for Environmental Monitoring[14][16], with applications in cartography, geodesy, land cover characterization, and natural hazards. Extensive testing across multiple sites has demonstrated the effectiveness of the proposed method, showcasing promising results.
The Relationship Between Parental Health Literacy and Primary School Students' Anthropometric Measurements and General Health Status
Authors: Uner Elif , Aygun Ozcan , Duman Alime , Gungor Nazli 
Published: May 2024

Abstract

Background Parental health literacy plays a critical role in children's health and development. This study was conducted to reveal the relationship between parents' health literacy level and anthropometric measurements and general health status of primary school students.Methods Power analysis was performed to determine the sample size of the study and 681 children and their parents in 2 primary schools were included in the study. Data were collected using the socio-demographic data form, the student follow-up form, and the short form of the European Health Literacy Scale. The data collection forms were sent to the parents together with the students, and the anthropometric measurements of the children were carried out in an office set up in the school in which they were located. Chi-square test and binary logistic regression analysis were used to analyze the data.Results Parental health literacy was found to be adequate. Statistically significant relationships were found between parental health literacy and factors such as educational level, marital status, general health status of children, and preferences for access to health services (p < .05).Conclusions Parents who were single, had completed high school or college, rated their general health as high, perceived their children's health as good or excellent, visited the hospital, and did not have oral and dental health problems in their children were found to have higher levels of health literacy. It is recommended to prepare information and education programs specifically for these groups.
Phase angle is associated with neck circumference in sleep apnea patients--a cross-sectional study
Authors: Wang Haodong , Zhang Junli , Ma Jianhong , Luo Huiping , Wei Chunsheng , Huang Jingjing 
Published: May 2024

Abstract

The aim of this study was to characterise the whole-body 50 kHz phase angle in patients with obstructive sleep apnoea (OSA) and to estimate it using other nutrition-related physical examination indices. We enrolled 117 patients with OSA who underwent polysomnography. Patients underwent body composition measurements, physical examinations, and nutrition-related laboratory tests, and were grouped according to neck circumference (NC) quartiles to analyse the correlation between NC and nutritional assessment index values. A significant positive correlation was observed between NC and various nutritional indicators, including height and whole-body 50 kHz phase angle. An increase in NC resulted in a corresponding increase in weight, body mass index, waist circumference, arm muscle circumference, whole-body 50 kHz phase angle, apnoea–hypopnea index, and the longest apnoea time. Further stepwise regression and multiple linear regression analyses revealed: whole-body 50 kHz phase angle =(0.126×waist circumference + 0.345×arm muscle circumference − 1.420- NC)/(-1.496). The whole-body 50 kHz phase angle in patients with OSA can be estimated using NC, arm muscle circumference, and waist circumference, helping assess the combined nutritional, inflammatory, and immune status of patients with OSA.
Towards non-blinking perovskite quantum dots
Authors: Dong Yitong , Mi Chenjia , Gee Gavin , Lander Chance , Atteberry Matthew , Akhmedov Novruz , Hidayatova Lamia , DiCenso Jesse , Yip Wai Tak , Shao Yihan 
Published: May 2024

Abstract

Surface defect-induced photoluminescence blinking is ubiquitous in lead halide perovskite quantum dots (QDs). Despite efforts to passivate the defects on perovskite QDs by chemically engineering ligand binding moieties, blinking accompanied by photodegradation still poses barriers to studying and implementing quantum-confined perovskite QDs in quantum emitters. We posited that the intermolecular interaction between ligands can affect the QD surface passivation. In the solid state, steric repulsions among bulky ligand tails prevent adequate QD surface ligand coverage. Alternatively, attractive π-π stacking between low-steric phenethylammonium (PEA) ligands promotes the formation of a nearly epitaxial surface ligand layer. Here, we demonstrate that single CsPbBr3 QDs covered by these PEA ligands are nearly non-blinking, with single photon purity reaching 98%. Moreover, these QDs exhibited no spectral shifting and photodegradations, and they remained blinking-free after 12 hours of continuous operation. Free of interferences from blinking and photodegradation, we present size-dependent exciton radiative rates and emission line widths of single CsPbBr3 QDs ranging from strongly to weakly confined regimes.
Bacopa monnieri extract mitigates Cypermethrin-induced hypothyroidism and oxidative stress in female mice
Authors: Chourasiya Surbhi , Kar Anand , Sharma Versha 
Published: May 2024

Abstract

Purpose-
Cypermethrin (CYP) is a commonly used type II Pyrethroid. This pesticide tends to accumulate in the various body tissues causing organ dysfunction. The current study is primarily focused on investigating cypermethrin-induced hypothyroidism and the potential mitigating effect of Bacopa monnieri extract in female mice.
Method-
Animals were divided into four groups, each comprising 6 mice. Group I served as a control, Group II was orally exposed to CYP at 15 mg/kg, while Group III animals were administered with Bacopa monnieri (BM) extract at a dose of 200 mg/Kg and Group IV received CYP as well as Bacopa monnieri extract for 28 days by oral route. At the end, serum levels of triiodothyronine (T3), thyroxin(T4), and thyroid stimulating hormone (TSH) were measured. Results- The thyroid histopathological examination and tissue peroxidation were studied which revealed the CYP-induced deformed follicles with flattened epithelium and reduced diameter, vacuolated cytoplasm, and decreased expression of THR beta-1. In this group, a marked elevation in TSH and a considerable decline in both T3 and T4 levels were observed. Moreover, a significant increase in the bio-morphometric indices (body weight and thyroid weight) was seen. Marked morphometric abnormalities and hormonal dysregulation indicated the CPY-induced hypothyroid condition. Interestingly, the co-administration of Bacopa monnieri extract and CYP showed a positive result as it could ameliorate hypothyroidism in mice. Results of biochemical assessments revealed increased oxidative stress in the thyroid gland by CYP, reversed in the CYP + BM group.
Conclusion-
These results suggest the mitigative effect of the test drug on cypermethrin-induced hypothyroidism. This work demonstrates an entirely novel expression of THR beta-1 and oxidative stress in the context of hypothyroidism that has been generated.
Hydroa vacciniforme-like lymphoproliferative disorder with peculiar presentation
Authors: Magaña Mario , Flores Ruben , Mariano Camilo 
Published: May 2024

Abstract

This case is an atypical presentation of hydroa vacciniforme-like lymphoproliferative disorder (HVLPD). A 14-year-old boy presented with edema, ulcers, tenderness and progressive functional limitation of both legs, he underwent one inguinal lymph node excision and two skin biopsies which reported an angiocentric lymphoproliferative process EBER positive consistent with HVLPD. After 8 weeks his face presented with edema and ulcers, characteristic of the original patients described with HVLPD. Patient´s parents refused treatment and took him back home, he died a few months later. We highlight not only the atypical and the usual bad prognosis of this disease but also that taking an early biopsia in an unclear clinical condition can make the diagnosis and impact on patients life.
Identification of dynamic networks community by fusing deep learning and evolutionary clustering
Authors: Pan Yu , Yao Feng , Liu Xin , Zhang Lei , Li Wei , Wang Pei 
Published: May 2024

Abstract

Community detection is a critical component of network analysis and a hot topic in social computing. Detecting community structure in dynamic networks has important theoretical and practical implications for understanding the intrinsic function of networks and predicting network behavior. However, the majority of existing dynamic community detection methods adopt shallow models and merely excavate the complex non-linear structure, which tends to generate undesirable community structure. In order to obtain the accurate and robust community structure in dynamic networks, we are inspired by network representation learning and utilize the deep learning to detect evolving communities in dynamic networks. In this paper, we propose a novel dynamic community detection method by fusing Deep Learning and Evolutionary Clustering(DLEC). This work attempts to combine deep learning and evolutionary clustering into a unified framework. First, we propose a matrix construction strategy to fully reveal the inherent community structures via the underlying community memberships. Then, we develop a novel multi-layer deep autoencoder framework that consists of multiple non-linear functions to extract the latent deep representation of the dynamic network. Based on the evolutionary clustering framework, a graph regularization term is introduced to ensure the smoothness of the community evolution. Finally, we employ the K-means clustering algorithm on the low-dimensional network space to obtain the community structure. Extensive experimental results on synthetic and real-world networks show that the proposed DLEC algorithm can effectively detect high-quality communities in the dynamic networks.
Electric field observed during disappearance of nighttime medium-scale traveling ionospheric disturbance at midlatitude
Authors: Matsuyama Miyuki , Ishisaka Keigo , Yamamoto Mamoru , Yokoyama Tatsuhiro , Saito Susumu , Kumamoto Atsushi , Tanaka Makoto , Abe Takumi 
Published: May 2024

Abstract

The S-520-27 sounding rocket was launched from the Uchinoura Space Center in Kagoshima, Japan at 23:57 JST on July 20, 2013. This sounding rocket was launched to verify the hypothesis of the nighttime medium-scale traveling ionospheric disturbance (MSTID) generation mechanism, in which electromagnetic interaction in the ionospheric E and F regions is thought to play an important role. The detrended total electron content (dTEC) map identiﬁed the MSTID structure as a northwest – southeast band structure at the time of the rocket launch. This band structure disappeared 30 min after launch, indicating that the rocket was observing the disappearance process of MSTID. The wavefront direction was assumed to be 164.90 ° in azimuth from the dTEC map. The electric ﬁeld detector on board the rocket observed low-frequency electric ﬁelds from DC to 50 Hz in situ. The obtained data were analyzed, and the detrend electric ﬁeld was derived. The electric ﬁeld was analyzed by decomposing the MSTID into components perpendicular and parallel to the wavefront. In the low-plasma-density region, the perpendicular and parallel components of the electric ﬁeld are southwestward and northwestward, respectively. Conversely, in the-high-plasma-density region, the perpendicular and parallel components are the northeastward and southeastward, respectively. These electric ﬁelds generated the E × B drift in the equalization direction of the Pedersen conductance gradient of the MSTID. The results show that the electric ﬁeld played an important role in the disappearance of the MSTID.
Case report: Woven-like coronary arteries in a patient with polycythemia vera
Authors: Wang Baoguo , Zhang Mingyou , Zhang Jian , Lu Ming , Zhang Weihua 
Published: May 2024

Abstract

Background Woven coronary artery (WCA) is a rare and underdiagnosed congenital anomaly that involves multiple thin and tortuous epicardial arterial conduits reassembling distally into a single lumen. Recanalized thrombus may present as woven-like coronary arteries, appearing similar to WCA on angiographic images
Case presentation A 58-year-old female patient with intermittent chest pain for 5 years and polycythaemia vera (PV) for 8 years. The left anterior descending artery was presented like WCA on coronary angiography and finally confirmed as recanalized thrombus by optical coherence tomography（OCT）, which might have been caused by PV. Given the patient's high thrombotic risk of PV and thrombotic changes in the left circumflex artery (LCX) and right coronary artery (RCA), we ultimately chose a conservative treatment without stenting.
Conclusions OCT would be needed for the diagnosis and differential diagnosis of woven-like coronary arteries. And physicians should take an appropriate treatment in a personalized way in patients with PV.
Contrasting Prognoses: Regional Disparities in Primary Membranous Nephropathy Patients
Authors: Shang Meifang , Wu Shengchun , Cheng Yuan , Qin Xun , Cen Ji , Qi Dongli , Wan Qijun , Wei Zhe 
Published: May 2024

Abstract

Primary membranous nephropathy (PMN) is the predominant histological subtype of nephrotic syndrome in adults, exhibiting a wide range of prognostic outcomes. This study employed a retrospective cohort design to investigate patients with confirmed PMN diagnosis via renal biopsy at the Second People's Hospital of Shenzhen, Guangdong Province between January 2008 and March 2020, as well as at Hechi People's Hospital from June 2013 to September 2021. Utilizing regression analysis, survival analysis, and cross-examination, the study aimed to compare epidemiological characteristics and prognostic indicators among PMN patients across different geographic regions. The study included a cohort of 662 patients diagnosed with PMN, with 362 (54.7%) of these patients residing in Guangxi. Patients in Guangxi exhibited characteristics such as advanced age, a higher proportion of males, elevated systolic and diastolic blood pressure, increased levels of serum PLA2R antibody concentration, uric acid, total cholesterol, and urine protein, as well as lower levels of hemoglobin, serum albumin, and baseline estimated glomerular filtration rate (eGFR). Results from multivariate Cox analysis indicated that regional disparities were identified as independent risk factors for a 30% decline in eGFR among PMN patients, with the risk of reaching renal endpoint being 7.84 times higher in Guangxi compared to Guangdong. The KM curve analysis indicated a significantly higher incidence of reaching the renal endpoint in Guangxi (P<0.0001). Furthermore, the interaction test revealed significant regional variations in the impact on renal endpoint incidence across different eGFR quantiles, suggesting a notable interaction effect.
Conclusion: The clinical and pathological manifestations of primary membranous nephropathy (PMN) patients in Guangxi are more severe and have a worse renal prognosis compared to those in Shenzhen, Guangdong. Therefore, it is crucial to prioritize the allocation of limited medical resources and implement early intervention strategies in the formulation of chronic kidney disease health policies to effectively prevent and treat PMN in this region.
Association between pre-pregnancy BMI and weight gain during pregnancy and fetal growth restriction
Authors: Murano Yayoi , Shoji Hiromichi , Hachijyo Ryuta , Onishi Kazunari , Yoneoka Daisuke , Sakamaki Ken , Nakayama Shoji F. , Shimizu Toshiaki , Gilmour Stuart 
Published: May 2024

Abstract

There are many reports on high pre-pregnancy body mass index (BMI), but few reports on low pre-pregnancy BMI. However, while high BMI is a problem, low BMI is also a problem. Therefore, we conducted a study to determine the association between pre-pregnancy BMI, weight gain during pregnancy, and fetal growth restriction (FGR). This is an observational study using data from the Japan Environment and Children’s Study which includes 100,000 mothers. Singleton live births born between 37 and 41 weeks of gestational age were eligible. FGR was defined as a birth weight lower than the 10th percentile of birth weight for infant’s gestational age, sex, and parity. Pre-pregnancy BMI were categorized into four groups; underweight (BMI < 18.5 kg/m2), normal (BMI between 18.5 and 25 kg/m2), overweight (BMI between 25 and 30 kg/m2), and obese (BMI over 30 kg/m2). Using logistic regression analysis, association between FGR and pre-pregnancy BMI and weight gain during pregnancy were calculated. The results showed that low pre-pregnancy BMI increased the odds of FGR by factor of 2.33 (95% confidence interval 1.91–2.85). The interaction between pre-pregnancy BMI and weight gain during pregnancy was significant, indicating that the greatest benefit of weight gain was seen in underweight mothers.
Crystallization Behaviours Regulations and Thermostability Enhancement Strategy of Polypropylene Composites modified by Dispersed Rice Husk Charcoal
Authors: Shen Yunda , Deng X.L. , Feng H.P. , Gong R.Q. , Ren Liang , Wang Yaobin , Zhang Y.L. , Du W.N. , Zhang Mingyao 
Published: May 2024

Abstract

Polypropylene has a wide range of applications in scientific research, industry, and production due to its excellent mechanical properties and chemical stability. However, owing to its low melt strength, inferior dimensional stability, and poor thermal stability, thus limiting its further application. Addressing this challenge, a series of polymer composites consisting of rice husk charcoal (RHC), modified using 3-glycidyloxypropyltrimethoxysilane (KH560) as the silane coupling agent, and polypropylene (PP) have been fabricated by virtue of a melt blending process by us. Thermal behaviour, crystallization properties, mechanical properties, dimensional stability and microscopic morphology of PP/RHC composites are studied in detail. The results show that, when 20% modified RHC was added to the composites, it increased the initial decomposition temperature of PP by 130℃, which represents that we manufactured PP composites with better thermal properties by simple processing. The rheological performance tests showed that the addition of RHC increased the stiffness and dimensional stability of the composites, which is more conducive to the processing and moulding of the material. SEM indicated that KH-560 can increase the compatibility of RHC with PP substrate, thus improving the performance of conforming materials.
Femoral head and acetabular necrosis combined with hip subluxation in people with HIV: A case report and literature review
Authors: Ji Yunxiao , Li KangPeng , Zhang Yao , Zhao Changsong , Zhang Qiang 
Published: May 2024

Abstract

Introduction: HIV is widely prevalent in all regions of the world. The use of antiretroviral drugs has dramatically reduced the mortality rate of HIV-related diseases, but correspondingly increased the incidence of chronic complications in HIV-positive people. Related studies have found that the incidence of osteonecrosis of the femoral head is higher in HIV-positive people, but the co-occurrence of femoral head necrosis, acetabular necrosis and hip joint dislocation in HIV-positive patients is rare.
Methods: We report a 50-year-old man with a 15-month history of progressively worsening right hip pain with movement restriction. According to the CT findings of the other hospital, the patient was admitted to the hospital with femoral head necrosis. After the admission, the relevant X-ray, CT and MRI examinations showed that the right femoral head collapsed and deformed, with the surrounding bone sclerosis, bone fragments and loose body of the joint, right hip subluxation, acetabular marginal osteogeny and local microcystic degeneration. The left femoral head was in good shape, and cystic degeneration can be seen under the articular surface. The patient was finally diagnosed with femoral head necrosis and acetabular necrosis combined with hip subluxation.
Results: The pain of the patient was significantly relieved after the operation, and the patient was discharged from the hospital one week after the start of treatment to continue rehabilitation training. During the follow-up one month after operation, the self-reported pain disappeared completely and the limitation of activity was significantly improved.