bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development and characterization of single walled carbon nanotubes (SWCNTs) dispersed water borne epoxy (WBEP) coatings for enhanced adhesion and corrosion resistance.
Authors: G Rajiv. , S Ananda Kumar , VP Akhin 
Published: August 2023

Abstract
The effect of uniformly dispersed single walled carbon nano tubes (SWCNTs) into water borne epoxy resin (WBEP) towards anti-corrosion performance on mild steel was evaluated. Dispersed SWCNTs act as corrosion inhibitor, increased the adhesive strength of WBEP coatings to a greater extent. Consequently, the WBEP coatings displayed outstanding barrier properties against H2O molecule compared to the neat WBEP coatings. The corrosion resistance of 0.5% SWCNTs-WBEP coating determined after 60h of immersion in 3.5 % NaCl solution, showed superior performance than 0.3%, 0.1% SWCNTs loaded WBEP and neat WBEP coatings as well. Furthermore, the data resulted from physico-mechanical properties supported and confirmed the enhanced adhesion imparted by 0.5%SWCNTs-WBEP than that of neat WBEP coatings on mild steel. The SEM images ascertained proper dispersion of SWCNTs in WBEP resins. Ultimately, the results from our study demonstrated the positive effects of the proper incorporation of SWCNTs towards anticorrosive ability of WBEP coatings for better performance and longevity.
The Impact of City Animal and Plant Raising on People's Level of Disgust towards Ants and Yellow Jackets
Authors: Farkhary Sayed Ibrahim , Neyazi Abdul Jawid 
Published: August 2023

Abstract
Studies have shown that urban life and less contact with nature can increase disgust towards insects and gardening reduces the level of disgust towards them. Since animals and plants are part of nature, our hypothesis in this research was that keeping animals and plants in the city is somehow contact with nature and has an effect on reducing disgust towards insects. To test this hypothesis, a questionnaire was distributed to 1092 people randomly in Kabul city. The level of disgust against ants and yellow jackets among those who raise animals and plants is lower than that of those who do not. The reasons for disgusting ants and yellow jackets included fear, contamination, appearance, lack of interaction, and unfamiliarity, and they were different between those who raise animals and plants and those who do not. The motivation to destroy ants and yellow jackets was higher among those who do not raise animals and plants. On the other side, there is a strong association between level of disgust and reaction against yellow jackets and ants. These findings show that raising animals and plants in the city can reduce the level of disgust against insects which supports their conservation. To reduce the disgust towards insects, we suggest encouraging the keeping of animals and plants in the city, and a decrease in the level of disgust will reduce a strong reaction (like killing) towards them. For more clarification, research is needed on the effects of different types of raising animals and plants.
Extracellular vesicles promote migration despite vemurafenib treatment in malignant melanoma cells
Authors: Németh Afrodité , Bányai Gréta L. , Dobos Nikolett K. , Kós Tamás , Gaál Anikó , Varga Zoltán , Buzás Edit I. , Khamari Delaram , Dank Magdolna , Takács István , Szász A. Marcell , Garay Tamás 
Published: August 2023

Abstract
Extracellular vesicles (EVs) were found to be one group of the determining factors in intercellular communication and have been shown to have a crucial role in metastasis formation and drug resistance. Malignant melanoma (MM) is one of the deadliest forms of skin cancers, because of its high metastatic potential and often acquired resistance to oncotherapies. BRAF mutation is the most prevalent genetic aberration in MM, which implicates BRAF (e.g. vemurafenib) or combined BRAF/MEK inhibitor therapy. Herein, we analyzed the role of EVs in MM progression and investigated if EVs can maintain their role in metastasis promotion during vemurafenib treatment. Five pairs of syngeneic melanoma cell lines were treated with EVs isolated from their or their pair’s supernatant. EVs’ impact on melanoma cells’ proliferation was investigated using cell viability and spheroid growth assays. Furthermore, to investigate changes in cell migration, mean squared dis-placement (MSD) and total travelled distance (TTD) were calculated based on video microscopy measurements and single cell tracking. In most of the cases, EV treatments did not affect cell proliferation and spheroid growth, however, their migration-promoting role was more prominent. Additionally, EVs originating from more resistant cells could counteract the inhibitory effect of vemurafenib. In conclusion, our findings provide further details to understand the complex role of EVs in tumor promotion, progression and single-agent vemurafenib resistance in MM.
Improvement of electrochemical performance of spherical spinel LiMn 2 O 4 cathode material coated with Al-doped ZnO (AZO) for Li- ion battery
Authors: Pan Bin , Zhang Hailang L. , Weng Yuling 
Published: August 2023

Abstract
In this work, spherical spinel LiMn2O4 cathode material has been synthesized succesfully. Al-doped ZnO (AZO) materials were coated on the surface of spherical spinel LiMn2O4 cathode by a simple wet chemical method. The amount of the AZO coating materials are 0.0wt%, 0.5wt%, 1.0wt% and 2.0wt%, respectively. On the surface, the AZO coating could work as an artificial barrier and Li+ conductor, inhibiting Mn dissolution and promoting lithium ion migration. The research results show that the electrochemical properties of the modified LiMn2O4 materials are improved. The LiMn2O4 sample coated with 1 wt% AZO demonstrated the best cycle and rate performances, with capacity retention of 96.5% and 88.8% after 100 cycles with 1 C rate at 25°C and 55°C, respectively, and still possessed the discharge specific capacity of 113.9 mAh g-1 at 25°C with thr 5 C rate. It could be concluded that AZO-modified LiMn2O4 material is a viable cathode material for lithium ion batteries.
Estimated and observed nucleation densities of electrodeposited Cu and Cu-Ag particles at n-Si(001) substrate
Authors: Sun Yunkai , Zangari Giovanni 
Published: August 2023

Abstract
We have examined the particle density of electrodeposited Cu and Cu-Ag particles from acidic sulfate bath. Based on the potentiostatic transients, the nucleation densities of the deposits were estimated with the Scharifker-Hills model, the Scharifker-Mostany model, the Heerman-Tarallo model, the approach proposed by Sluyters-Rehbach et al., and the model based on the roughness of the planar diffusion field from the one-point correlation function. All the fitted nucleation densities significantly underestimate the particle density observed under SEM. The average grain size suggests that all the nuclei are growing with respect to time. Those behaviors suggest that the coalescence of the diffusion fields occurs much earlier than the full coalescence of the nucleation exclusion zones. Furthermore, we have also attempted to explain the observed nucleation densities with the surface defect density of heavily-doped n-Si(001) substrate and the volume of the electrolyte required for forming the critical nucleus of Cu or Ag. The assumption that the Cu(II) species are immediately consumed at the substrate has been justified, from which a characteristic time is proposed to evaluate the impact of the rate of concentration drop on the mass-transfer behavior of the system.
The Impact of Insurance Status on Patient Placement into Inpatient and Outpatient Orthopedic Surgical Centers in the United States
Authors: Tallapaneni Jetha , Harrington Michael , Troiani Zach , Venturino Luciano , Rosenbaum Andrew 
Published: August 2023

Abstract
Background
Innovation has fueled the shift from inpatient to outpatient care for orthopaedic joint arthroplasty. This transformation begs the question, what factors help assign care-settings to specific patients for the same procedure? While one answer seems to be the comorbidities suffered by the patients, recent research may point to a more complex determination. Primarily, differences in reimbursement structures and patient characteristics across various insurance statuses could influence these decisions.
Methods
Retrospective binary logistic and ordinary least square (OLS) regression analyses were employed on de-identified inpatient and outpatient orthopaedic arthroplasty data from Albany Medical Center from 2018-2022. Data elements included surgical setting (inpatient vs. outpatient), covariates (age, gender, race, obesity, smoking status), Elixhauser comorbidity indices, and insurance status.
Results
Patients insured by Medicare were significantly more likely to be placed in inpatient care-settings for total hip, knee, and ankle arthroplasty when compared to their privately insured counterparts even after Centers for Medicare and Medicaid Services (CMS) removed each individual surgery from its inpatient-only-list (1.65 (p<0.05), 1.27 (p<0.05), and 12.93 (p<0.05) times more likely respectively). When compared to patients insured by the other payers, Medicare patients did not have the most comorbidities.
Conclusions
Medicare patients were more likely to be placed in inpatient care-settings. The age of these patients correlates with the presence of comorbidities. However, it is of value to note that Medicare patients billed for outpatient services experience higher coinsurance rates.
Level of Evidence: III
Strategies to Implement Integrated Land Management Information System to Improve Issuance of Certificates of Right of Occupancy in Tanzania
Authors: Mollel Faraja E. , Kilavo Hassan , Manyilizu Majuto Clement 
Published: August 2023

Abstract
Land offices in Tanzania struggle with poor use of management systems including the Integrated Land Management Information System (ILMIS) on the issuance of Certificates of Right of Occupancy (CRO). This study assessed strategies used to implement the ILMIS on CRO issuance in Tanzania. The study was theoretically guided by the Diffusion of Innovation theory (DOI), the Technological Acceptance model and the theory of reasons action. The study deployed the descriptive design and used data collected from 150 respondents from the Ministry of Land Housing and Human Settlement Development (MLHHSD) Management and responsible officers as well as Right of Occupancy owners. The results showed that relevant strategies such as the availability of ICT policy, ICT infrastructure, management support and commitment as well as training had a real impact on the implementation of ILMIS in the issuance of CRO. The study recommends that land management offices in Tanzania should restructure their ICT policies to spell clearly out the ILMIS implementation and adoption for effective and efficient CRO issuance. Furthermore, the study recommends training and sensitization to increase ILMIS land management uptake, and raise awareness to encourage positive user attitudes.
Positive solution for an elliptic system with critical exponent and logarithmic terms: the higher dimensional cases
Authors: Hajaiej Hichem , LIU Tianhao , Zou Wenming 
Published: August 2023

Abstract
In this paper, we consider the coupled elliptic system with critical exponent and logarithmic terms:
\begin{equation}
\begin{cases} -\Delta u=\lambda_{1}u+ \mu_1|u|^{2p-2}u+\beta |u|^{p-2}|v|^{p}u+\theta_1 u\log u^2, & \quad x\in \Omega,\\
-\Delta v=\lambda_{2}v+ \mu_2|v|^{2p-2}v+\beta |u|^{p}|v|^{p-2}v+\theta_2 v\log v^2, &\quad x\in \Omega,\\
u=v=0, &\quad x \in \partial \Omega, \end{cases} \end{equation}
where $\Omega \subset \R^N$ is a bounded smooth domain, $2p=2^*=\frac{2N}{N-2}$ is the Sobolev critical exponent. When $N \geq 5$, for different ranges of $\beta,\lambda_{i},\mu_i,\theta_{i}$, $i=1,2$, we obtain existence and nonexistence results of positive solutions via variational methods. The special case $N=4 $ was studied by the authors in (arXiv:2304.13822). Note that for $N\geq 5$, the critical exponent is given by $2p\in \sbr{2,4}$, whereas for $N=4$, it is $2p=4$. In the higher dimensional cases $N\geq 5$ brings new difficulties, and requires new ideas. Besides, we also study the Br\'ezis-Nirenberg problem with logarithmic perturbation \begin{equation}
-\Delta u=\lambda u+\mu |u|^{2p-2}u+\theta u \log u^2 \quad \text{ in }\Omega,
\end{equation}
where $\mu>0, \theta<0$, $\lambda\in\R$, and obtain the existence of positive local minima and least energy solution under some certain assumptions.
Economical Approach for Graphene Fabrication via Home-Built CVD Technique Using Naturally Available Solid Carbon Sources
Authors: Hussain Misba 
Published: August 2023

Abstract

In the present investigation, naphthalene and camphor have been used as solid-state carbon sources for graphene deposition on the copper substrate through home-built CVD technique. The effect of precursor concentrations on the quality of graphene has been discussed. Moreover, several experiments have been performed to study the effect of gasses used (Ar and H2) and the distance between precursor and substrate in the present investigation. The use of different concentrations of carbon source with respect to hydrogen gas concentration provided various carbon nanostructures like carbon nanofibers (CNF), few-layer graphene (FLG) and vertically aligned graphene (VAG). The defects in as-grown carbon nanostructures have been confirmed by Raman spectroscopy. For the sample with 10% naphthalene and 90% camphor at 25 cm apart from the substrate in the 9:1 ratio Ar and H2 gas environment, 2D and G band intensity ratio I2D/IG has been found as 0.6 which confirms few-layered graphene deposition. The surface morphology of deposited carbon nanostructures has been confirmed by scanning electron microscopy (SEM) and the microstructure of deposited graphene has been studied using transmission electron microscopy (TEM). The functional groups attached to the deposited graphene have been characterized by Fourier transform infrared spectroscopy (FTIR).
KCNK12 as a novel immune-related biomarker to reveal the crosstalk between COVID19 and stroke
Authors: Han Song , Li He , Zhang Wei , He Junwei , Yan Tao 
Published: August 2023

Abstract
Background
COVID-19, a respiratory disease that emerged in 2019, continues to pose a global threat to public health. Stroke has become the second leading cause of death worldwide, with respiratory infections among its serious complications. COVID-19 infection and mortality rates are notably higher among stroke patients than in the general population. However, the potential relationship between COVID-19 and stroke remains poorly understood. This article aims to elucidate the potential mechanisms underlying the association between these two diseases at the transcriptome level and to identify potentially useful drugs.
Results
KCNK12 was identified as an important stroke biomarker and showed significant differential expression in COVID-19 by intersecting multiple algorithms. Functional enrichment analysis revealed that KCNK12 primarily promotes neuroactive ligand-receptor interaction (p.adj < 0.001). Analysis of immune infiltration showed that neutrophils in the peripheral blood of stroke patients are the most affected by KCNK12. Moreover, there was a significant correlation between neuroactive ligand-receptor interaction and neutrophil infiltration (R = 0.65, p < 2.2e-16). The relationship between KCNK12 and neutrophil infiltration was further validated using single-cell data
Conclusion
We have identified KCNK12 as a potential target that may contribute to the susceptibility of stroke patients to COVID-19 infection. KCNK12 regulates neutrophil infiltration through neuroactive ligand-receptor interaction. This discovery not only sheds light on the underlying mechanisms of the relationship between stroke and COVID-19 but also provides predictions for transcription factors and potential drugs that can be used as therapeutic options.
Tree-Based Structural Representation and Difference Computation for PDF Documents
Authors: Thomas Nancy , Borrajo Daniel 
Published: August 2023

Abstract
Purpose: The goal of this paper is to introduce a method that uses the structured representation of two PDF documents to compute differences between them.
Methods: Included in this work there are three main contributions. The first one is a method for parsing PDF documents and representing them with a tree structure. The second one is our algorithm for computing differences between two PDF documents by leveraging their tree structure. The third one is a method for generating pairs of original and modified synthetic PDF documents.
Results: Our system for parsing and representing PDF documents is able to detect the true structure of a PDF document with high accuracy when tested on synthetic PDFs. Our tree-based difference computation approach, when tested on synthetic documents, is able to capture structural differences and improve computational complexity significantly compared to the performance of state of the art alternative approaches.
Conclusion: Tree-based PDF document representations allow for efficient, accurate, and comprehensive computation of differences between documents.
Evaluation of Borax Pentahydrate as a Novel Antiangiogenic Agent
Authors: YILMAZ Harun , OZBEK Emine Nur , Işel Elif , BUTUNER Bilge DEBELEÇ , ANACAK Gunay YETIK , KOPARAL Ayşe Tansu , ULUS Gönül 
Published: August 2023

Abstract
Angiogenesis, it is the process of the formation of new capillaries from pre-existing vessels. Tumor growth and metastasis depend on angiogenesis Studies show that natural and synthetic boron compounds have anticancer effects. Although the anticancer effects of some boron compounds include borax pentahydrate have been demonstrated, there is no data on their antiangiogenic effects in the literature. This study was aimed to investigate antiangiogenic potential effects of borax pentahydrate (BPH) in in vitro and in vivo. Anti-proliferative activities of BPH assessed MTT assay. Anti-angiogenic activities were investigated using tube formation assay in vitro and chick chorioallantoic membrane (CAM) assay in vivo. In addition, the protein level of vascular endothelial growth factor (VEGF) molecule, which is the basic molecule in vessel formation was determined by western blot analysis. BPH displayed potent antiangiogenic activities in vitro: inhibited proliferation HUVECs, disrupted endothelial tube formation and inhibited vascular formation of CAM surface in a dose dependent manner. In addition, significant dose-dependent decrease was observed in the VEGF protein levels. These findings suggest that BPH could be a new anti-angiogenic agent. BPH may shed light on drug development studies as a new therapeutic agent for angiogenesis-related diseases.
Integrated photonics modular arithmetic processor
Authors: Wu Jian , Wu Yuepeng , Guo Hongxiang , Zhang Bowen , Qiu Jifang , Yang Zhisheng 
Published: August 2023

Abstract
Integrated photonics computing has emerged as a promising approach to overcome the limitations of electronic processors in the post-Moore era, capitalizing on the superiority of photonic systems. However, present integrated photonics computing systems face challenges in achieving high-precision calculations, consequently limiting their potential applications, and their heavy reliance on analog-to-digital (AD) and digital-to-analog (DA) conversion interfaces undermines their performance. Here we propose an innovative photonic computing architecture featuring scalable calculation precision and a novel photonic conversion interface. By leveraging Residue Number System (RNS) theory, the high-precision calculation is decomposed into multiple low-precision modular arithmetic operations executed through optical phase manipulation. Those operations directly interact with the digital system via our proposed optical digital-to-phase converter (ODPC) and phase-to-digital converter (OPDC). Through experimental demonstrations, we showcase a calculation precision of 9 bits and verify the feasibility of the ODPC/OPDC photonic interface. This approach paves the path towards liberating photonic computing from the constraints imposed by limited precision and AD/DA converters.
Fatal Dermatological Squeal Following Depot Medroxyprogesterone Acetate (DMPA) Administration: A Catastrophic Hypersensitivity Case Report
Authors:   AISHA SIDDIQUI MD (FCPS 2 MEDICINE), MBBS FARINA FATIMA SIDDIQUI , GUL MUHAMMAD HAMZA , MBBS YUGAM RAJESHKUMAR OZA , JAYAPRAKASH MIRUTHU VARSHINI 
Published: August 2023

Abstract

The use of depot progesterone as a contraceptive every three months by a considerable number of women has raised concerns regarding the potential for hormones and chemicals to trigger fatal immune responses resulting in skin reactions. The focus of our case report is a 25-year-old woman who suffered a fatal dermatological condition after using depot contraceptive. It is noteworthy that this specific condition has not been documented in medical literature before.
Hospital wastewater treatment coupling electrochemical coagulation and activated sludge process
Authors: Shivaprasad Kempanapura Shivashankar , Mahesh Shivaswamy , Sahana Mahesh 
Published: August 2023

Abstract

Dual treatment of raw hospital wastewater (RHWW) is investigated by coupling electrochemical coagulation (ECC) with the activated sludge process (ASP) to achieve the goal of partial mineralization and reclaim quality water. The quality parameters of focus were chemical oxygen demand (COD), color, mixed liquor suspended solids (MLSS), total dissolved solids (TDS), chloride, total alkalinity, and fecal coliform. The initial ECC process with short hydraulic retention time (HRT) could remove 75–82% of the insoluble constituents in &lt;60 min, while the HRT for ASP was &gt;7–8 h. The combined ECC + ASP hybrid treatment process showed effective removal of COD, color, TDS, and fecal coliform by 98.5, 99.6, 83.1, and 97.9%, respectively, from its initial values of 4,000, 2,200, 77, and 2,400 MPN/100 mL, respectively. By coupling ECC and ASP, both the insoluble and soluble pollutants/contaminants in the RHWW were removed effectively. The ECC–ASP dual treatment offers a small energy and spatial footprint for mineralizing RHWW.
Application of modified enhanced differential evolution algorithms for reservoir operation during floods: a case study
Authors: Sinha Lalitesh , Narulkar Sandeep M. 
Published: August 2023

Abstract

Operating a reservoir during flooding is a complex problem in which optimum decision-making is a difficult task. The present study demonstrates a solution for the operation of flooding problem in a multiple-purpose reservoir. A reservoir on River Narmada in central India is chosen as the case study. The multiple objective problems comprised maximization of hydropower releases, minimizing spills, and achieving stipulated target storage at the end of the operation period. The chosen optimization models are the Differential Evaluation Algorithm (DEA) and its variants: the Enhanced Differential Evolution Algorithm (EDEA) and the Modified Enhanced Differential Evaluation Algorithm (MEDEA). The EDEA model is modified in the present study to MEDEA. The results of all three models applied to the same case study are compared on convergence to an optimal solution. All three algorithms were tested on two of the popular benchmark functions that are Ackley and Sphere. The results of both applications demonstrated that MEDEA proved to be the best in terms of converging to the optimal solution, exhibiting better stability, and quality of final results. The outcomes of this study also provided an effective way to optimize large scale multi-purpose and multi-reservoir flood control operation problems.