bluuebunny/crossref_metadata_2025_split huggingface dataset:
Some optical and microstructure characteristics of effective cost ZnO-containing hydroxyapatite
Authors: Mahdy Manal A , Sherif H H A , Kenawy S H , El-Bassyouni G T , Hamzawy E M A , El Zawawi I K 
Published: December 2022

Abstract
Metal oxide like zinc oxide (ZnO) is recognized to be one of the versatile inorganic compounds due to its physical properties. Crystalline compositions, morphology, particle size, and chemical bonds of pure hydroxyapatite (HA) and ZnO/HA were characterized by x-ray diffraction (XRD), Scanning and transmission electron microscopy (SEM and TEM), Fourier transform infrared spectroscopy (FT-IR), and Raman scattering detected crystalline and bond structure. Nanocomposites were crystallized in a main monoclinic phase of HA and a minor hexagonal phase of ZnO with particle size (18–29 nm) and grain size (75–200 nm) for the synthesized samples were identified. Moreover, the existence of the phosphate, carbonate ions, and hydroxyl groups in the HA and its composites structure was assured by the FT-IR assessment. The optical bandgap (Eg) of HA showed two transitions at 3.24 and 4.37 eV; these values decreased with the incorporation of ZnO. The determining optical and photoluminescence properties confirmed the presence of ZnO content in the HA matrix.
Tighter sum uncertainty relations via metric-adjusted skew information
Authors: Li Hui , Gao Ting , Yan Fengli 
Published: December 2022

AbstractIn this paper, we first provide three general norm inequalities, which are used to give new uncertainty relations of any finite observables and quantum channels via metric-adjusted skew information. The results are applicable to its special cases as Wigner-Yanase-Dyson skew information. In quantifying the uncertainty of channels, we discuss two types of lower bounds and compare the tightness between them, meanwhile, a tight lower bound is given. The uncertainty relations obtained by us are stronger than the existing ones. To illustrate our results, we give several specific examples.
Introduction
Authors: Loboda E L , Grishin A M 
Published: December 2022

Abstract
The history of the All-Russian Scientific Conference "Conjugate Problem of Mechanics of Reactive Mediums, Informatics and Ecology" had started with scientific seminars, which began in 1973 at the initiative of young personnel of the Aerothermochemistry Department of the Research Institute of Applied Mathematics and Mechanics of Tomsk State University. They tested new scientific results and established channels with leading scientists of scientific schools.
Hazard assessment method for underwater potentially hazardous objects
Authors: Bolshagin A Yu , Gavrilyuk A A , Dolgov A A , Zinoviev S V , Lezhaev I F , Tuzov F K 
Published: December 2022

Abstract
The article describes a method for assessing the danger of Underwater Potentially Hazardous Objects (PHUOs). The method based on data on the maximum permissible concentrations of hazardous substances in marine areas. For using the proposed method, accurate information of type of hazardous substances contained in the protective shells of the PHUO, and their quantity are required. To assess the scale of pollution of water areas, data on the depth of the object and the hydrological characteristics of the water area are required. A salvo release is considered as a mechanism for the release of hazardous substances from the PHUO, as the most destructive for the water area where underwater potentially dangerous object is located. The concepts of "shallow sea" and "deep sea" are introduced. For these concepts, the features of the distribution of hazardous substances from PHUO are determined. A criterion is given that allows making the right choice of the algorithm for calculating the spread of hazardous substances in the water area of the PHUO. Algorithms for estimating the parameters of the distribution of hazardous substances in the conditions of "shallow" and "deep" sea, in the presence and in the absence of underwater currents, are given.
Influence of ground shaking on the fault: numerical simulation
Authors: Nemirovich-Danchenko M M , Khudorozhko I N , Chubarov D L 
Published: December 2022

Abstract
The paper considers a possible model of the behavior of faults under the influence of external influences. A complication in the form of a step is assumed in the structure of the fault banks. A hook on a step leads to the appearance of two local stress concentration regions. A possible mechanism for slowing down the response to external stimuli is discussed. An external influence can be a shaking of the ground from a neighboring earthquake or a deformation tidal wave. The calculation is carried out within the framework of the elastic-brittle medium model by the finite-difference method supplemented with the ability to calculate cracks with the definition of their faces as free surfaces. As a result of the simulation, the emergence of a region of stress concentration is observed, which may not immediately lead to destruction. There will be an accumulation of damage as a result of a hook on the fault step, and the reaction to external influence will slow down. Over time, the medium exhausts the possibilities for implementing all the mechanisms of accommodation to the load, which leads to a break in the vicinity of the roughness with the emission of the next portion of seismic waves.
Numerical modeling of heating a heat flux gauge in a supersonic flow
Authors: Vasnev I R , Fedorova N N 
Published: December 2022

Abstract
This paper has developed a mathematical model for calculating the conjugate heat transfer between a supersonic airflow at the freestream Mach numbers M
∞ = 3, 4, 5, and a copper plate simulating the sensitive thermocouple element. The calculation results are compared with the experiment. The calculations show the effect of turbulence intensity, temperature boundary condition, and flow rate on sensor heating. The results of the sensor's initial heat fluxes, maximum temperatures, and heating times in different flow regimes are presented. Also, the flow regimes with an adiabatic wall are considered. As a result of calculations, it is shown that for the given freestream Mach numbers under "cold" wall temperature conditions, the sensor warms up to the maximum temperature in 1.5-3 seconds and reaches temperatures from 789 to 1076 K. If the adiabatic conditions are assumed at the channel walls, depending on the Mach number at the channel entrance, the sensor is heated from 1600 to 2250 K.
Development of highly sensitive capacitive proximity sensor based on stacked monocharged electrets
Authors: Lee Donghan , Cho Sumin , Jang Sunmin , Park Sung Jea , Choi Dongwhi 
Published: December 2022

Abstract
Recently, the demand for miniaturization and high sensitivity of the capacitive proximity sensors has increased noticeably for development of sensor networks. However, the volume and weight of conventional sensor devices are emerging as limitations in the practical application. In this paper, the stacked electrets-based highly sensitive noncontact capacitive sensor system (SENS) is proposed. The SENS is fabricated in compact-sized and light weight because electrets, which are dielectric materials that have quasi-permanent injected electric charges so can form external electric field, substitute the transmitter electrode and the external power source. Also, sensitivity of the SENS is effectively improved by stacking electrets. For experimental analysis, the electrostatic properties of the stacked electrets, which are due to the injected charges, and resultant influences on the sensitivity of the SENS are studied. In addition, based on experimental results, a proximity notification system with the SENS is developed using a LabVIEW program to demonstrate the practicality of the SENS.
Connecting in place: older adults’ experience of online mindfulness therapy during the COVID-19 pandemic
Authors: Pacini Adele , Stickland Annabel , Kupeli Nuriye 
Published: December 2022

Abstract

Background
the negative consequences of COVID-19 distancing measures on older adults’ mental health and ability to access services have been well documented. Online cognitive behavioural therapy and mindfulness interventions for older adults, carried out during the COVID-19 pandemic, have shown that these interventions are feasible and have potential mental health benefits. However, little research has been carried out on older adults’ experiences of engaging with online psychological therapy, and specifically mindfulness therapy.

Objectives
to understand the experience of older adults engaging with online mindfulness therapy during the COVID-19 pandemic.

Study design
a qualitative analysis of four community-based focus groups.

Participants
thirty-six community dwelling older adults aged between 65 and 85 years were recruited via older adult organisations, charities and the local press. Nineteen percent had long-term physical health conditions, 25% had severe and enduring mental health difficulties and 19% had mild to moderate mental health difficulties.

Results
there was a strong sense of group cohesion and community from the participants.
Three main themes were identified: reasons for applying, experience of the mindfulness therapy and connecting at home.

Conclusions
the majority of participants were positive about attending a mindfulness group online. This extended to the perceived psychological and social benefits as well as practical considerations. While some participants noted technological hurdles at the beginning of the course, the findings challenge previous studies that suggest older adults are reluctant to engage in online psychological therapies and has important implications for the future provision of psychological therapies to this population.
The metabolites ofde novoNAD+ synthesis are a valuable predictor of acute kidney injury
Authors: Wang Yujia , Guan Yi , Xie Qionghong , Gong Weiyuan , Li Jianhua , Chen Tong , Xu Yanfang , Xu Ning , Chen Shaohao , Chen Mo , Wang Zhengxin , Hao Chuan-Ming 
Published: December 2022

ABSTRACTBackgroundAcute kidney injury (AKI) is often iatrogenic and potentially preventable. Reduced renal nicotinamide adenine dinucleotide (NAD+) is reported to increase the susceptibility of AKI. The present study explored the predictive value of urinary de novo NAD+ synthetic metabolites for AKI using two independent cohorts.MethodsThe expression of de novo NAD+ synthetic enzymes in human kidney was examined by immunohistochemistry and single-cell transcriptomes. Urine samples were collected from two independent cohorts: the methotrexate (MTX) cohort with high-dose MTX treatment for lymphoma (n = 189) and the liver transplantation cohort with orthotopic liver transplantation (n = 49). Urinary metabolomics study of NAD+de novo synthesis was performed by liquid chromatography with mass spectrometry, screening for AKI predictive biomarkers. Nephroseq database and immunohistochemistry were used to analyze kidney de novo NAD+ synthetic enzymes expression in AKI-susceptible conditions.ResultsHuman proximal tubule was the main structure in the kidney that expressed the necessary enzymes for NAD+de novo synthesis. In the MTX cohort, the urinary quinolinic acid (QA)/3-hydroxyanthranilic acid (3-OH AA) ratio before chemotherapy was significantly lower in those who developed AKI after chemotherapy compared with those who did not. This finding was consistent in the liver transplantation cohort. The area under the receiver-operating characteristic curve (AUC) of urinary QA/3-OH AA for AKI prediction was 0.749 and 0.729 in two cohorts, respectively. 3-Hydroxyanthranilic acid dioxygenase (HAAO), the enzyme catalyzing QA synthesis from 3-OH AA, decreased in AKI-susceptible diabetic kidneys.ConclusionsThe human proximal tubules were important source of NAD+ from the de novo pathway. Reduced urinary QA/3-OH AA ratio, which possibly suggested decreased HAAO activity, could be a potential AKI predictive biomarker.
Acute left main coronary occlusion after transcatheter aortic valve implantation: life-saving intervention using the snare technique—a case report
Authors: Lopes Pedro M , Brito João D , Campante Teles Rui , Sousa Almeida Manuel 
Published: December 2022

Abstract

Background
Transcatheter aortic valve implantation (TAVI) has rapidly evolved and changed the field of structural cardiovascular intervention. Its advances lead to a marked reduction in the risk of complications and improved outcomes. However, TAVI is still associated with potential serious complications.

Case summary
A 73-year-old man with severe aortic stenosis underwent TAVI using a 34-mm self-expanding aortic bioprosthesis. After valve deployment, the patient rapidly progressed to cardiac arrest. Acute left main occlusion, due to high valve implantation, was promptly recognized and advanced life support immediately initiated. Concomitantly, the valve was successfully retrieved toward the ascending aorta using the snare technique, resulting in immediate restoration of flow and successful cardiopulmonary resuscitation. Subsequently, a 29-mm balloon-expandable aortic bioprosthesis was uneventfully implanted. After TAVI, the patient had a remarkable clinical evolution and was discharged home at hospitalization day five without relevant electrocardiographic nor echocardiographic disturbances. At six-month follow-up, the patient remains asymptomatic and transthoracic echocardiography revealed a normofunctional aortic bioprosthesis with preserved left ventricular ejection fraction.

Discussion
Acute coronary occlusion is a rare and life-threating complication of TAVI that may be prevented with accurate procedure planning. Pre-procedural computed tomography angiography is essential for a comprehensive patient evaluation, allowing appropriate valve selection, a key factor for successful management. Self-expandable valve retrieval with snare technique can be an appropriate strategy for the management of this complication. This case highlights the importance of performing these procedures in highly experienced centres and with fully equipped catheterization laboratories to allow timely interventions when facing unexpected events.
Insights into the domestication of avocado and potential genetic contributors to heterodichogamy
Authors: Solares Edwin , Morales-Cruz Abraham , Balderas Rosa Figueroa , Focht Eric , Ashworth Vanessa E T M , Wyant Skylar , Minio Andrea , Cantu Dario , Arpaia Mary Lu , Gaut Brandon S 
Published: December 2022

Abstract
The domestication history of the avocado (Persea americana) remains unclear. We created a reference genome from the Gwen varietal, which is closely related to the economically dominant Hass varietal. Our genome assembly had an N50 of 3.37 megabases, a BUSCO score of 91%, and was scaffolded with a genetic map, producing 12 pseudo-chromosomes with 49,450 genes. We used the Gwen genome as a reference to investigate population genomics, based on a sample of 34 resequenced accessions that represented the 3 botanical groups of P. americana. Our analyses were consistent with 3 separate domestication events; we estimated that the Mexican group diverged from the Lowland (formerly known as “West Indian”) and Guatemalan groups &gt;1 million years ago. We also identified putative targets of selective sweeps in domestication events; within the Guatemalan group, putative candidate genes were enriched for fruit development and ripening. We also investigated divergence between heterodichogamous flowering types, providing preliminary evidence for potential candidate genes involved in pollination and floral development.
Mapping schistosomiasis risk in Southeast Asia: a systematic review and geospatial analysis
Authors: Luo Can , Wang Yan , Su Qing , Zhu Jie , Tang Shijing , Bergquist Robert , Zhang Zhijie , Hu Yi 
Published: December 2022

Abstract

Background
Schistosomiasis is a water-borne parasitic disease estimated to have infected &gt;140 million people globally in 2019, mostly in sub-Saharan Africa. Within the goal of eliminating schistosomiasis as a public health problem by 2030 in the World Health Organization (WHO) Roadmap for neglected tropical diseases, other regions cannot be neglected. Empirical estimates of the disease burden in Southeast Asia largely remain unavailable.

Methods
We undertook a systematic review to identify empirical survey data on schistosomiasis prevalence in Southeast Asia using the Web of Science, ScienceDirect, PubMed and the Global Atlas of Helminth Infections, from inception to 5 February 2021. We then conducted advanced Bayesian geostatistical analysis to assess the geographical distribution of infection risk at a high spatial resolution (5 × 5 km) using the prevalence, number of infected individuals and doses needed for preventive chemotherapy.

Results
We identified 494 Schistosoma japonicum surveys in the Philippines and Indonesia, and 285 in Cambodia and Laos for S. mekongi. The latest estimates suggest that 225 [95% credible interval (CrI): 168–285] thousand in the endemic areas of Southeast Asian population were infected in 2018. The highest prevalence of schistosomiasis was 3.86% (95% CrI: 3.40–4.31) in Laos whereas the lowest was 0.29% in Cambodia (95% CrI: 0.22–0.36). The estimated number of praziquantel doses needed per year was 1.99 million (95% CrI: 1.92–2.03 million) for the entire population in endemic areas of Southeast Asia.

Conclusions
The burden of schistosomiasis remains far from the WHO goal and our estimates highlighted areas to target with strengthened interventions against schistosomiasis.
A constructive low-regularity integrator for the one-dimensional cubic nonlinear Schrödinger equation under Neumann boundary condition
Authors: Bai Genming , Li Buyang , Wu Yifei 
Published: December 2022

Abstract
A new harmonic analysis technique using the Littlewood–Paley dyadic decomposition is developed for constructing low-regularity integrators for the one-dimensional cubic nonlinear Schrödinger equation in a bounded domain under Neumann boundary condition, when the frequency analysis based on the Fourier series cannot be used. In particular, a low-regularity integrator is constructively designed through the consistency analysis by the Littlewood–Paley decomposition of the solution, in order to have almost first-order convergence (up to a logarithmic factor) in the $L^{2}$ norm for $H^{1}$ initial data. A spectral method in space, using fast Fourier transforms with $\mathcal{O}(N\ln N)$ operations at every time level, is constructed without requiring any Courant-Friedrichs-Lewy (CFL) condition, where $N$ is the degrees of freedom in the spatial discretization. The proposed fully discrete method is proved to have an $L^{2}$-norm error bound of $\mathcal{O}(\tau [\ln (1/\tau )]^{2}+ N^{-1})$ for $H^{1}$ initial data, where $\tau $ is the time-step size.
Iranian Refugee Entrepreneurship and Inclusion in the Netherlands
Authors: Khademi Samaneh , Essers Caroline , van Nieuwkerk Karin 
Published: December 2022

AbstractNumerous studies have demonstrated the importance of entrepreneurship for migrants’ integration. Nonetheless, the impact of entrepreneurship on refugees’ inclusion and sense of belonging has been largely overlooked. This article explores how entrepreneurship contributes to the inclusion of Iranian refugee entrepreneurs, considering the different aspects of a refugee’s identity components such as ethnicity, age, class, gender, and religion. The life stories of 14 Iranian refugee entrepreneurs, who immigrated to the Netherlands in the 1980s and 1990s are analysed. We illustrate how different dimensions of their identity shape entrepreneurial motivations, resources, and entrepreneurial strategies. The results show that intersecting identity components impact Iranian refugee entrepreneurs’ sense of belonging. Notwithstanding the diverse ways in which individuals experience belonging, our study identifies three particular modes of belonging: hybrid, cosmopolitan, and transnational belonging. Drawing on interviews with individual refugee entrepreneurs, we conclude that entrepreneurship is a vehicle for greater acceptance and inclusion within the host society. Our study points to an urgent need to go beyond the integration paradigm by applying the concept of inclusion. The notion of inclusion enables us to gain a deeper understanding of refugees’ position in the labour market and the receiving society more broadly.
An incisional hernia containing a gangrenous gallbladder: a case report and review of the literature
Authors: Backen Timbre , Crawley W Tyler , Bouchard Travis , Quan Glenda 
Published: December 2022

Abstract
We present a 76-year-old male who presented to the emergency department with 24 hours of sudden onset, severe abdominal pain. Physical exam and laboratory analysis indicated acute cholecystitis, and a CT scan demonstrated a ventral hernia containing an inflamed gallbladder. This patient was managed operatively with an open cholecystectomy. The ventral hernia was not repaired at the index operation in the setting of frank gallbladder necrosis. The patient recovered well after a short post-operative stay. This report is intended to illustrate an unusual presentation of acute, gangrenous cholecystitis with herniation through the ventral abdominal wall.
Single stage chest wall soft tissue reconstruction with ipsilateral pectoralis major turnover flap, rhomboid skin flap, and inferior nipple transposition
Authors: Thng Coeway Boulder , Kok Yee Onn , Feng Jiajun , Wong Allen Wei-Jiat 
Published: December 2022

Abstract
Extravasation injury is a well-known complication of central venous catheter placement, with potential for extensive soft tissue necrosis. Here, we describe the case of a patient who developed a large right chest well soft tissue defect, due to a chest wall abscess from calcium gluconate infusion via a right internal jugular central venous catheter. After multiple debridements, the chest wall defect was reconstructed with a single stage ipsilateral pectoralis major turnover flap, rhomboid skin flap, and inferior nipple transposition to match the contralateral nipple. There was no further infection, no nipple necrosis, and patient regained full range of motion of the ipsilateral shoulder.
Malignant peritoneal mesothelioma—a diagnostic challenge
Authors: Abdul Razzak Saad , Awan Faisal , Ahmed Salman 
Published: December 2022

Abstract
Malignant peritoneal mesothelioma is a rare cancer originating primarily from the peritoneum with a poor prognosis and non-specific clinical presentation. We present a case of a 60-year-old male, retired metallurgy engineer who initially presented with shortness of breath, lethargy, weight loss, vague abdominal pain and night sweats. Extensive workup for almost 2 months finally leads to the diagnosis of primary malignant peritoneal mesothelioma based on immunohistochemical analysis of loss of BAP1 gene. The patient was deemed non-suitable for surgical management and started on palliative carboplatin and pemetrexed. In conclusion, histological diagnosis is essential for peritoneal diseases before considering it as a metastasis from other primary tumours. Furthermore, immunohistochemical analysis and genetic profiling may also guide towards the diagnosis and possible treatment.