bluuebunny/crossref_metadata_2025 huggingface dataset:
Photoelectrochemical Oxygen Evolution on Mesoporous Hematite Films Prepared from Maghemite Nanoparticles
Authors: Verissimo N. C. , Ren D. , Kleiner C. C. C. , Hesse F. A. B. , Zakeeruddin S. M. , Grätzel M. , Bertazzoli R.
Published: May 2022

Iron oxides, especially hematite (α-Fe2O3), are promising materials for applications in photoelectrochemical cells and photo-redox catalysis. However, realizing high-performance hematite photoanodes via an environmentally-friendly route remains a great challenge. In this work, we employed a novel approach to prepare mesoscopic hematite photoelectrodes with remarkable performance for water oxidation. Hydrothermally-synthesized maghemite nanoparticles of high crystallinity with a mean particle size of 3.3 nm were deposited onto fluorine doped tin oxide (FTO) transparent conducting glass substrates, followed by heat treatment to convert them into a homogeneous mesoporous hematite layer. A hematite photoanode with a thickness of 220 nm, delivered a maximum photocurrent density of 1.8 mA cm−2 for water oxidation to oxygen at 1.23 VRHE under simulated AM 1.5 irradiation. Upon treating the surface of the hematite photoelectrode with Co(II) cations the photocurrent density nearly doubled at the same potential to 3.32 mA cm−2 placing our new photoelectrode among the best hematite-based photocatalysts for visible light induced water splitting. Further photoelectrochemical analysis provided insights into the factors boosting the performance of the hematite photoanode.
Carbon-Free Reversible Air Electrodes based on Perovskite Oxide and Conductive Oxide for Rechargeable Zinc-Air Batteries
Authors: Fujiwara Naoko , Ioroi Tsutomu , Arai Hajime
Published: May 2022

Reversible air electrodes with high activity and durability during the discharge/charge processes are required for rechargeable zinc-air batteries. Although carbon materials are widely used as catalyst supports and conductive additives for metal oxide catalysts in the catalyst layer (CL) and as the main active constituent in the gas-diffusion layer (GDL), the carbon is oxidized during the charge step, causing degradation of the air electrode. In this study, carbon-free air electrodes were prepared using electro-conductive oxides, namely, indium tin oxide or antimony-doped tin oxide, as an alternative to carbon materials in both the CL and GDL to achieve reversibility and durability of the air electrode in zinc-air batteries. While the initial performance of the carbon-free air electrodes was inferior to that of the carbon-based air electrodes, the lifetime of the carbon-free air electrodes was remarkably longer. These results indicate a critical role of electro-conductive oxides in both the CL and GDL for durable air electrodes.
Nanoscale Visualization of Reversible Redox Pathways in Lithium-Sulfur Battery Using In Situ AFM-SECM
Authors: Thangavel Naresh Kumar , Mahankali Kiran , Arava Leela Mohana Reddy
Published: May 2022

Deducing the electrochemical activity of intermediates and providing materials solution to alter their reaction pathways holds the key for developing advanced energy storage systems such as lithium-sulfur (Li-S) batteries. Herein, we provide mechanistic perspectives of the substrate guided reaction pathways of intermediate polysulfides and their correlation to the redox activity of discharge end products using In Situ atomic force microscopy-based scanning electrochemical microscopy (AFM-SECM) coupled Raman spectroscopy at nanoscale spatiotemporal resolution. In Situ SECM intermediate detection along with Raman analysis at the electrode/electrolyte interface reveals that the precipitation of Li2S can occur via an electrochemically active lithium disulfide (Li2S2) intermediate step. With a detailed spectro-electrochemical and morphological mapping, we decipher that the substrate-dependent Li2S2 formation adversely affects the Li2S oxidation in the subsequent cycles, thereby reducing the round-trip efficiency and overall performance of the cell. The present study provides nanoscale-resolved information regarding the polysulfide reaction pathways in Li-S batteries with respect to the electrode structure and its properties.
Electrochemical Separation of Ag2S and Cu2S from Molten Sulfide Electrolyte
Authors: Wagner Mary-Elizabeth , Allanore Antoine
Published: May 2022

The production of precious metals from Cu-rich sources such as ore products or secondary sources is slow and complex largely due to limited solubility in aqueous electrolytes. This results in sequential processing with various electrolytes and chemistries, where first Cu is electrorefined, followed by Ag, followed by Au and the platinum group metals. These are separate processes, often conducted in separate electrorefining and electrowinning facilities. The chemical properties of molten sulfides, and their ability to operate at a temperature where liquid metal cathodes are used, suggest the possibility of an alternative, streamlined processing route for Cu and precious metals. Unfortunately, little thermodynamic or electrochemical information is available regarding the behavior of Cu and precious metal sulfides in molten sulfide electrolytes. Herein, the relative activity of the Cu2S-Ag2S pseudobinary dissolved in a BaS-La2S3 supporting electrolyte is measured at 1523 K. It was found that the supporting electrolyte favors mixing with Ag2S over Cu2S. Molten sulfide electrolysis of Cu and Ag was conducted, with results in good agreement with the thermodynamic model. It is found that the Ag-Cu cathode chemistry will influence the electrochemical selectivity in the Ag-Cu-Ba-La-S system.
Slippery and Sticky Superoleophobicities on Hierarchical Aluminum Surfaces Fabricated by Electrochemical Etching and Anodizing Methods
Authors: Kikuchi Tatsuya , Yasuda Junnosuke , Iwai Mana
Published: May 2022

Slippery and sticky superoleophobic aluminum surfaces were fabricated by electrochemical etching and anodizing methods. Collective structures of sub-micrometer-scale cubic-shaped aluminum were formed by electrochemical etching of high-purity aluminum in HCl. The etched specimens were then anodized in H4P2O7 to form anodic alumina nanofibers (AANFs) on the cubic aluminum surface, resulting in a hierarchical aluminum-alumina structure. As the water/oil-repellent self-assembled monolayers were formed on their surfaces, the superoleophobicity of dodecane was more than 150° in the advancing contact angle exhibited on the anodizing surfaces. Conversely, the receding contact angle changed drastically with anodizing time because of the different nanomorphology of AANFs; short anodizing caused slippery superoleophobicity with high contact angle values, whereas long anodizing resulted in sticky superoleophobicity with 0°. We demonstrated the slipping behavior of dodecane droplets on superoleophobic aluminum surfaces with completely opposite sliding properties. The corrosion resistant property of the superoleophobic aluminum surface was also investigated by the measurements of potentiodynamic curve in a 3.5 wt% sodium chloride solution.
Gadolinium Manganese Oxide Nanorod Catalyst via a Facile Hydrothermal Approach: Application for Voltammetric Sensing of Antibiotic Drug Rifampicin in Pharmaceutical and Biological Samples
Authors: Pulikkutty Subramaniyan , Manjula Natesan , Chen Tse-Wei , Chen Shen-Ming , Al-onazi Wedad A. , Al-Mohaimeed Amal M. , Hsu Heng-Yuan , Huang Chun-Wei , Yu Ming-Chin , Elshikh Mohamed S
Published: May 2022

This study constructs a rough-surfaced rod structure of gadolinium manganese oxide fabricated by a glassy carbon electrode (GMO NRs/GCE). The resulting nanostructure was applied as an efficient electrocatalyst for the antibiotic drug rifampicin (RIF) sensor. In addition to the crystal structure study by X-ray diffraction (XRD), morphology study by Field Emission Scanning Electron Microscope (FESEM), Transmission electron microscopy (TEM), and the functional group examined by Fourier transform infrared spectroscopy (FTIR), elemental state study by X-ray photoelectron spectroscopy (XPS). As-synthesized samples were characterized systematically by electrochemical methods including cyclic voltammetry (CV), differential pulse voltammetry detection (DPV), and electrochemical impedance spectroscopy (EIS). The improving electrochemical behaviors of GMO NRs could be ascribed to the outstanding electrocatalytic activity with the high surface area and good conductivity. Under the experimental conditions, the quantitative measurement of RIF resulted in a large and wide linear range of 0.15 to 136.15 μM, a low detection limit was calculated to be 0.071 μM. The sensor had good selectivity, reproducibility, and high stability. Importantly, the GMO NRs sensor was effectively applied to determine RIF in serum, urine, and pharmaceutical samples with satisfactory accuracy and recovery.
Intersite Charge Transfer Enhanced Oxygen Evolution Reactivity on A
2IrO3 (A=Li, Na, Cu) Delafossite Electrocatalysts
Authors: Zhu Chuanhui , Cai Guo-Hong , Yuan Chongyang , Huang Bin , Li Guangqin , Croft Mark , Greenblatt Martha , Li Man-Rong
Published: May 2022

Exploring a simple model system to realize the intrinsic guidelines of activity for oxide electrocatalysts is urgent and important. Here, we introduce delafossite oxides A
2IrO3 (A = Li, Na, Cu) as a family of oxygen evolution reaction electrocatalysts in alkaline media. We show that, in Cu2IrO3, the intrinsic intersite charge transfer between Cu and Ir improves the electrocatalytic activity by simultaneously increasing the conductivity and reducing the Tafel slope down to 51 mV dec−1 with an overpotential η
10 = 361 mV. Through a comparative study, the improved activity of Cu2IrO3 is attributed to the increase of Ir 5d projected electronic density of states with extended Ir–O bond length. This study provides insights into advanced catalyst design through tailoring the active site of oxides by the modulation of electronic states in a given structural motif.
Review—An Overview on Recent Progress in Screen-Printed Electroanalytical (Bio)Sensors
Authors: Singh Sima , Wang Joseph , Cinti Stefano
Published: May 2022

Portability is one of the essential keys in the development of modern analytical devices. Screen printing technology is an established technology for both chemical and biosensor development. Screen printing technology has been used to generate a variety of electronic sensors that are rapid, cost-effective, on-site, real-time, inexpensive, and practical for use in healthcare, environmental monitoring, industrial monitoring, and agricultural monitoring. This review aims to describe recent research progress related to the development and improvement of screen-printed electrodes (SPEs). We also demonstrate the wide range of applications, also highlighting the market directions and the need for novel devices to be used by non-specialists. Finally, we conclude and provide an overview of the constraints and future opportunities of SPEs in biosensor application.
Targeting syndecan-1: new opportunities in cancer therapy
Authors: Yang Zecheng , Chen Shuaitong , Ying Haoqiang , Yao Wantong
Published: May 2022

Syndecan-1 (SDC1, CD138) is one of the heparan sulfate proteoglycans and is essential for maintaining normal cell morphology, interacting with the extracellular and intracellular protein repertoire, as well as mediating signaling transduction upon environmental stimuli. The critical role of SDC1 in promoting tumorigenesis and metastasis has been increasingly recognized in various cancer types, implying a promising potential of utilizing SDC1 as a novel target for cancer therapy. This review summarizes the current knowledge on SDC1 structure and functions, including its role in tumor biology. We also discuss the highlights and limitations of current SDC1-targeted therapies as well as the obstacles in developing new therapeutic methods, offering our perspective on the future directions to target SDC1 for cancer treatment.
Behavior in a visual search task with moving dot stimuli
Authors: Alkan Yelda , Mirpour Koorosh , Bisley James W.
Published: May 2022

The aim of this study was to design a behavioral paradigm that would allow us to probe the neural mechanisms of attention. The study describes the behavior of animals performing a visual search task with up to four moving dot stimuli and two forms of visual attention. We find that the animals use similar strategies to perform the task, leading to similar changes in reaction times and signal detection theory metrics d-prime and criteria.
The Velocity Slip Boundary Condition Effects on Non-Newtonian Ferrofluid over a Stretching Sheet
Authors: Zeb Hussan , Wahab Hafiz Abdul , Khan Umar , Juhani Amnah S.Al , Andualem Mulugeta , Khan Ilyas
Published: May 2022

In this work, radioactive heat transfer analysis in non-Newtonian Ferrofluid over a stretchable sheet is considered. Furthermore, the effects of Arrhenius activation energy, magnetic dipole, velocity slip, and mass convective boundary condition are taken into account. The governing model is transformed into coupled ordinary equations (ODEs) via a similarity transformation. The solution of these resulting ODEs systems are computed by Runge–Kutta method (RK-45). The influence of beneficial physical parameters on momentum, pressure, energy, and concentration profiles are presented. The major finding of this study is the variation of the velocity field is reduced for the higher values of velocity slip parameters

A

1

and

β

2

and fluid material parameter

H

. The temperature field increases for higher values of Rd and decreases for

Pr

. Here we concluded that, the increasing or decreasing of the concentration, temperature, and velocity field for various physical parameters can be seen in the result and discussion section in detail. The physical quantities such as skin friction, Nusselt, and Sherwood numbers are examined.
Analysis of the Significance of miR‐141 and CD147 Expression in Bladder Cancer Cells and Its Relationship with Tumor Grade
Authors: Liu Chao , Li Zhijia , Ni Lidong
Published: May 2022

The study analyzes the significance of miR‐141 and extracellular matrix metalloproteinase‐induced molecule (CD147) in bladder cancer cells and their correlation with tumor grade. A total of 87 bladder cancer patients for diagnosis and treatment from August 2020 to August 2021 are selected. All patients underwent pathological biopsy, and their cancer tissues and adjacent tissue cells are extracted. RT‐PCR is used to complete the miR‐141 relative expression level, and the immunohistochemical method is used to detect the expression of CD147 in patients. The miR‐141 and CD147‐positive rates are compared, and the relative expression levels of miR‐141 and CD147‐positive rates in cells of different tumor grades are compared. Spearman correlation coefficient is used to analyze the correlation of CD147 and bladder cancer. The prognosis of patients with different expression levels of miR‐141 and CD147 is compared. Both miR‐141 and CD147 are highly expressed in bladder cancer tissues, and their expression levels are significantly different from those of normal adjacent cells. In addition, the above two indicators are closely related to and related to the tumor grade of bladder cancer patients, and the high expression of miR‐141 and CD147 brings the poor prognosis effect to bladder cancer patients.
Notion of Complex Spherical Fuzzy Graph with Application
Authors: Shoaib Muhammad , Mahmood Waqas , Albalawi Weded , Shami Faria Ahmad
Published: May 2022

A complex spherical fuzzy set (CSFS) is a generalization of a spherical fuzzy set (CFS). CSFS handles vagueness more explicitly, and its range is expanded from the real subset to the complex with unit disc. The major goal of this research is to present the foundation of a complex spherical fuzzy graph (CSFG) due to the limitation of the complex neutral membership function in a complex Pythagorean fuzzy graph (CPFG). Complex spherical fuzzy models have more flexibility as compared to complex fuzzy models, complex intuitionistic fuzzy models, and complex Pythagorean fuzzy models due to their coverage in three directions: complex membership functions, neutral membership functions, and complex non-membership functions. Firstly, we present the motivation for CSFG. Furthermore, we define the order, degree of a vertex, size, and total degree of a vertex of CSFG. We elaborate on primary operations, including complement, join, and the union of CSFG. This research study introduces some operations, namely, strong product, composition, Cartesian product, and semi-strong product, on CSFG. Moreover, we present the application of CSFG, which ensures the ability to deal with problems in three directions.
A Mesh-Free Collocation Method Based on RBFs for the Numerical Solution of Hunter–Saxton and Gardner Equations
Authors: Ullah Rahman , Ali Ihteram , Shaheen Sadaf , Khan Tahir , Faiz Faizullah , Rahman Hamid
Published: May 2022

In this paper, the radial basis function (RBF) collocation method is applied to solve nonlinear partial differential equations (PDEs). First, the given equation is reduced to time-discrete form using Ө-weighted scheme. Then, with the help of RBFs, the given PDEs are transformed into a system of algebraic equations that is easy to solve. The proposed technique is verified by solving Hunter–Saxton and Gardner equations. For the solution of these problems, three types of RBFs, including multiquadric (MQ), inverse multiquadric (IMQ), and Gaussian (GA) have been used. The obtained solution is validated with the help of absolute error, L2, and L∞ error norms. The involved shape parameter is selected by the automatic algorithm that lies in the stable region of the method. The stability of the scheme is discussed by the spectral matrix method and validated computationally.
Communication Strategy of New Media Art to City Image under Smart City Information Technology
Authors: Xie Chen , Chen Yunfeng , Sun Qian
Published: May 2022

City image, as a public image, is the public’s overall evaluation and cognition of the city, including concept image, behavior image, and visual image. The new media art is an interdisciplinary research field integrating art, informatics, and communication. It emerged and developed in the new media era and effectively reached the agreement of scientific and technological means and artistic expression. This paper expounds the concept and connotation of smart city informatization and then constructs a measurement model of smart city informatization construction level based on GCD_BPNN. The degree of satisfaction of city image communication in H city was measured, the index evaluation system of system satisfaction in H city was constructed, and the comprehensive satisfaction scale of cultural system in H city was formed. The research shows that the communication of city image in the future should focus on the virtual space and construct the cultural identity and psychological identity of city image from the user’s point of view.
Evaluation of Waste Stabilization Pond Efficiency and Its Effluent Water Quality: a Case Study of Kito Furdisa Campus, Jimma University, Southwest Ethiopia
Authors: Desye Belay , Belete Biniam , Amare Alemseged Embay , Angaw Yonas , Asfaw Gebrezgi Zinabu
Published: May 2022

Waste stabilization pond (WSP) technology is one of the most promising wastewater treatment methods. In developing countries, including Ethiopia, only a small proportion of the wastewater is being treated. Discharge of untreated wastewater into receiving water bodies may lead to disruption of ecological integrity, economic, and public health risks. However, there is limited evidence on WSP efficiency and effluent water quality in Ethiopia. A laboratory-based cross-sectional study was conducted on 60 wastewater samples. A standard method of procedure was used to collect and analyze samples. SPSS version-24 was used for statistical analysis and a paired t-test was used to test for statistical significant differences. A statistically significant difference (

p
<
0.001

) in the removal efficiency of BOD5 up to 75.3% (117 mg/L effluent) and COD up to 56.5% (457.5 mg/L effluent) was recorded. A statistically significant difference (

p
<
0.001

) in the removal efficiency of TN up to 79% (17.4 mg/L effluent), TP up to 69.2% (4.8 mg/L effluent), and PO4−3 up to 71% (3.36 mg/L effluent) was recorded. Whereas, a statistically significant difference (

p
<
0.001

) in the removal efficiency of total coliforms up to 99.99% (3.4 × 103 MPN/100 mL effluent) and fecal coliforms up to 94.3% (8.54 × 102 MPN/100 mL effluent) was recorded. The overall efficiency of the treatment plant was 73.5% and its water quality index of the effluent water quality of WSP was 30. The finding showed that the efficiency of the WSP was judged as satisfactory and the effluent water quality of WSP is unsuitable for the discharge into the environment. Therefore, to improve the efficiency of the WSP and to produce adequately treated water, it required adequate preliminary treatment, modification of the design, desludging of the pond, additional treatment, and frequent monitoring and maintenance of the pond.
A Case of Preeclampsia with Uterine Necrosis after Uterine Artery Embolization for Postpartum Hemorrhage
Authors: Yoshikawa Midori , Seyama Takahiro , Iriyama Takayuki , Sayama Seisuke , Fujii Tatsuya , Toshimitsu Masatake , Nakaya Moto , Kurokawa Ryo , Shibata Eisuke , Watadani Takeyuki , Kumasawa Keiichi , Nagamatsu Takeshi , Koga Kaori , Osuga Yutaka
Published: May 2022

Uterine necrosis is a rare complication in uterine artery embolization (UAE) for postpartum hemorrhage (PPH). Preeclampsia (PE) is a condition characterized with systemic endothelial damage and intravascular volume depletion. Whether a patient with PE is at high risk for uterine necrosis after UAE for PPH has been unknown. A 30-year-old primipara woman was diagnosed with PE based on hypertension and proteinuria during delivery. UAE was performed for PPH after forceps delivery. After UAE, the patient presented with pleural effusion and massive ascites as well as persistent fever unresponsive to antibiotics. Ultrasonography and contrast-enhanced magnetic resonance imaging (MRI) led to the diagnosis of uterine necrosis, for which we performed total laparoscopic hysterectomy. It should be kept in mind that patients with PE associated with massive ascites may be at high risk for uterine necrosis after UAE due to decreased uterine perfusion. Therefore, it is important to pay attention to persistent symptoms such as fever and abdominal pain after UAE to diagnose uterine necrosis.
Fixed Point Theorems of Superlinear Operators with Applications
Authors: Xu Shaoyuan , Han Yan
Published: May 2022

In this paper, by using the partial order method and monotone iterative techniques, the existence and uniqueness of fixed points for a class of superlinear operators are studied, without requiring any compactness or continuity. As corollaries, the new fixed point theorems for

α

-convex operators

α
>
1

,

e

-convex operators, positive

α

homogeneous operator

α
>
1

, generalized

e

-convex operator, and convex operators are obtained. The results are applied to nonlinear integral equations and partial differential equations.
Role of C-Reactive Protein in Diabetic Inflammation
Authors: Stanimirovic Julijana , Radovanovic Jelena , Banjac Katarina , Obradovic Milan , Essack Magbubah , Zafirovic Sonja , Gluvic Zoran , Gojobori Takashi , Isenovic Esma R.
Published: May 2022

Even though type 2 diabetes mellitus (T2DM) represents a worldwide chronic health issue that affects about 462 million people, specific underlying determinants of insulin resistance (IR) and impaired insulin secretion are still unknown. There is growing evidence that chronic subclinical inflammation is a triggering factor in the origin of T2DM. Increased C-reactive protein (CRP) levels have been linked to excess body weight since adipocytes produce tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6), which are pivotal factors for CRP stimulation. Furthermore, it is known that hepatocytes produce relatively low rates of CRP in physiological conditions compared to T2DM patients, in which elevated levels of inflammatory markers are reported, including CRP. CRP also participates in endothelial dysfunction, the production of vasodilators, and vascular remodeling, and increased CRP level is closely associated with vascular system pathology and metabolic syndrome. In addition, insulin-based therapies may alter CRP levels in T2DM. Therefore, determining and clarifying the underlying CRP mechanism of T2DM is imperative for novel preventive and diagnostic procedures. Overall, CRP is one of the possible targets for T2DM progression and understanding the connection between insulin and inflammation may be helpful in clinical treatment and prevention approaches.
KlugOculus: A Vision-Based Intelligent Architecture for Security System
Authors: Rathour Navjot , Singh Rajesh , Gehlot Anita , Priyadarshi Neeraj , Khan Baseem
Published: May 2022

Vision-based system has gained significant attention in detecting the abnormal activities of intruders and alerting security with the amalgamation of adaptive video analytics techniques. The implementation of this kind of system works on face recognition, where the dedicated hardware with better computation power is limited in the previous studies. In this study, vision-based intelligent architecture and systems are proposed to detect intruders through facial recognition and sensors with customized hardware. As a part of the training, each subject was trained with 6 different pictures for a total of 120 images. Facial recognition implemented with machine learning (ML) inspired support vector machine (SVM) along with a histogram of oriented gradients (HOG). During the real-time implementation, the SVM model loaded in Raspberry Pi 3 has attained 99.9% accuracy for 20 different subjects. The proposed system can provide an accuracy of 99.9% even with tilted images of the subject, so it can be adopted by the different security personnel to boost the security system for the identification of intruders.
Burden and Associated Genotype Patterns of High-Risk Human Papilloma Virus Infection and Cervical Cytology Abnormalities among Women in Central India
Authors: Gupta Shipra , Purwar Shashank , Gupta Priyal , Halder Ajay , Gupta Ayush , Pushpalatha K. , John Julie Hansa
Published: May 2022

Background. The epidemiology of human papilloma virus (HPV) infection and the pattern of HPV genotype distribution are much-needed parameters to assess the risk of cervical cancer among females. However, due to less availability of data on HPV burden and its genotypes from various geographical regions in India makes cervical cancer screening modalities and vaccination strategies difficult to implement. Objective. The present study was conducted to identify the various genotypes particularly high-risk HPV types in premalignant or malignant cervical lesions. Methods. The study was a hospital-based cross-sectional study wherein 295 symptomatic women were screened by Pap smear and multiplex real-time PCR was performed for HPV genotypes identification in women with abnormal cervical cytology. Results. Out of 295 women, 237 (80.3%), 45 (15.3%), and 13 (4.4%) women had normal Pap smear, squamous cell carcinoma and precancerous cytology, respectively. Among these 58 women having abnormal cervical cytology, HPV was detected in 48 (81.0%) participants. Most common HPV genotypes in our study were HPV 16 (

n
=
29

; 60.4%) followed by mixed infections; i.e., more than one type of HPV was detected (

n
=
10

, 20.8%). HPV 18 was detected only in 6.25%, whereas other high-risk HPV genotypes were found to be 12.5%. Conclusion. HPV positivity was >80% in women having abnormal Pap smear. The prevalence of HPV 18 was found to be much less in Central India, compared to other parts of country. HPV 16 was the most common genotype followed by mixed HPV genotype infections. It is evident from our study that symptomatic women even if having normal Pap smear should be screened for HPV and followed up with periodic Pap smears for detecting any change in cervical cytology, thus preventing cervical cancer in women.
Efficacy of Telemedicine Utilization for Cardiac Outpatients’ Care during the Pandemic of COVID-19: A Large Center Experience in the Wave of the Pandemic
Authors: Alhejily Wesam A.
Published: May 2022

Introduction. Synchronous telemedicine using teleconferencing may play a role in clinical care. In a tertiary care center, video conferencing-enhanced virtual clinics were established via a new application platform. They were introduced during COVID-19 pandemic to connect patients to trained health-care providers via a secured line. While maintaining patients’ privacy, they were theorized to offer effective communications and continuous clinical care. In this cross-sectional cohort study, we ought to examine the impact of service and the assistance they may offer to cardiac patients in the outpatient setup. Methods. A prospective cohort study looking at all video-conferencing virtual clinics’ visits during the pandemic with primary focus on cardiac outpatient clinic, addressing primary endpoints of need for admission or emergency visits from cardiac demises during the pandemic and secondary endpoint of patient satisfaction based on patients’ experiences. Results. A total of 6000 live care video-based chats were made over 10 months period from March 10th, 2020, to January 30th, 2021, among which 277 patients were evaluated in the virtual cardiac clinic, of these 193 (69.7%) were males, with mean age of

48
±
15.60

(22.3%), patients were requested to present to clinic for further evaluation and testing, 20 (7.2%) patients were asked to visit the emergency room, of whom 8 (2.8%) patients were hospitalized. All 8 were admitted for high-risk findings that require immediate medical attention, 4/8 underwent cardiac catheterization, mean duration of admission was

2
±
1
 
days

. When compared to regular walk-in care, there was a statistical difference in admission rate and emergency visits

p
=
0.001

and

p
=
0.0001

, respectively, both were statistically higher in the virtual clinic. The satisfaction rate in a 5-scale grading system was 97% of 4 and above recommending the continuation of the service beyond pandemic time. Conclusions. Video-enhanced virtual cardiology clinic works safely and efficiently during COVID-19 pandemic with a difference in admission rate and ER visits when compared to walk-in clinic. It can be used during nonpandemic time to reduce load on hospital and clinic crowdedness. It also decreases the chances of COVID-19 transmission indirectly by reenforcing physical distance.
Bisphosphates for Osteoporosis: A Bibliometric Analysis of the Most Cited Articles
Authors: Zhang Yu , Hu Man , Zhu Lei , Wang Junwu , Wang Pingchuan , Shi Pengzhi , Zhao Wenjie , Liu Xin , Peng Qing , Meng Bo , Chen Chen , Feng Xinmin , Wang Yongxiang , Zhang Liang
Published: May 2022

Osteoporosis has become a major public health problem and bisphosphates treatment for osteoporosis is a rapidly developing research field. Every year, plenty of studies devoted to the treatment of osteoporosis are published, giving clinicians a new perspective on bisphosphates treatment for osteoporosis. However, the quality of the scientific papers in this area is unclear. The aim of the present study was to characterize the 100 top-cited articles regarding bisphosphates treatment for osteoporosis. This analysis provides an accessible list for practitioners of endocrinology, pharmacy, epidemiology, imaging, surgery, and scientific research to identify the most frequently cited literature and better understand the future direction.
Assessment of Quality of Life (QoL) of Colorectal Cancer Patients using QLQ-30 and QLQ-CR 29 at King Abdulaziz Medical City, Jeddah, Saudi Arabia
Authors: Qedair Jumanah T. , Al Qurashi Abdullah A. , Alamoudi Saeed , Aga Syed Sameer , Y. Hakami Alqassem
Published: May 2022

Objective. We aimed to assess the quality of life (QoL) and its predictors in colorectal cancer (CRC) patients at King Abdulaziz Medical City, Jeddah. Methods. A total of 118 CRC patients at King Abdulaziz Medical City, a tertiary hospital in Jeddah, participated in this study. The participants were provided with the online questionnaire via WhatsApp by trained researchers and data collectors in February 2021. All participants were required to answer the three-section questionnaire comprising of (a) demographic data and a validated Arabic version of the European Organization for Research and Treatment of Cancer (EORTC) quality of life questionnaires, (b) a general version (QLQ-30), and (c) a CRC-specific version (QLQ-CR29). Results. Statistical analysis revealed that the most common comorbidity among the participants was diabetes mellitus (42.4%). In addition, the mean global health status was 63.91 ± 24.75. For the global health tool QLQ-C30, results exhibited that physical functioning [62.94 (30.04)] and social functioning [63.56 (31.95)] scored below the threshold, while the cognitive functioning scale scored the highest [74.86 (25.11)]. In addition, on the QLQ-C30 scales, fatigue and insomnia were distressing, with fatigue scoring the highest. For the disease-specific tool QLQ-CR29, it was found that for the symptom scale, urinary frequency and embarrassment scored the highest. Conclusion. The participants reported high global quality of life on both the EORTC QLQ-30 and QLQ-CR29 scales. This study identifies the factors and predictors that affect the quality of life of CRC patients in Saudi Arabia. Recognizing these factors and predictors may empower those patients to maintain positive perception towards the impact of colorectal cancer and improve their survival.
Intelligent Art Design Management Based on Wireless Communication Microprocessor and Mobile Internet
Authors: Wang Xingyang , Zhu Yutong
Published: May 2022

Art design management is the fusion of art design and business management and the collision between design management and other disciplines. In order to study art design management students in a scientific way, this article combines wireless communication microprocessors and mobile Internet to design a new art design management mode. This paper proposes the inspection technology and its algorithm description, combines the T2 microprocessor and the SOA service architecture of the mobile Internet, and then integrates the theoretical knowledge of art design management to build an intelligent art design management based on wireless communication microprocessors and mobile Internet model. Then this paper designs the finite impulse response (FIR) filter test experiment and the end-to-end delay test experiment. The data collected in the experiment is optimized for the new art design management mode, and the optimized mode is subjected to a control experiment and a favorable opinion survey analysis. The experimental results show that the art design management model based on wireless communication microprocessors and mobile Internet has increased the artistic creation ability by 21.78% compared with the traditional art design model; compared with the traditional art design management mode, the art design management mode based on wireless communication microprocessor and mobile Internet has improved the management ability by 10.61%.
[Retracted] Active Treatment of Water Chemistry for Swimming Pools Using Novel Automated System (NAS)
Authors: Asiri Saeed
Published: May 2022

The Novel Automated System (NAS) has the control system of the level of chlorine and acid (i.e., pH level) through a feedback in three forms of synchronous alerts. The feedback is in the form of an alert voice, a visible color, and a message on a digital screen. In addition, NAS contains a slide‐in container in which chemicals are used to treat the problems of chlorine and acid levels independently. Moreover, NAS has a net in front of it to clean the pool on the surface of the water from leaves and wastes and so on which is controlled through a remote control. The material used is a lightweight aluminum with mechanical and electric parts integrated with each other. In fact, NAS is qualified to serve as an assistant security guard for swimming pools because it has the characteristics that make it unique and smart.
A Hybrid Approach for MS Diagnosis Through Nonlinear EEG Descriptors and Metaheuristic Optimized Classification Learning
Authors: Mohseni Elnaz , Moghaddasi Seyed Mahdi
Published: May 2022

Multiple sclerosis (MS), a disease of the central nervous system, affects the white matter of the brain. Neurologists interpret magnetic resonance images that are often complicated, time-consuming, and contradictory. Using EEG signals, this disease can be analyzed and diagnosed more accurately. However, it is imperative that MS be diagnosed by specialists using assistive technology. Until now, a few methods have been proposed in this field that are sometimes associated with different challenges in analysis. This paper presents a hybrid approach to MS diagnosis in order to decrease classification error rates. Using the proposed method, EEG descriptors in both the time and frequency domains are analyzed. After the feature extraction stage, a modified version of the ant colony optimization method (m-ACO) was used to select the appropriate subset of features. Then, the support vector machine is used to determine whether the disease exists. A metaheuristic algorithm adjusts the support vector machine’s parameters to withstand overfitting challenges. Despite a limited number of input channels, significant classification accuracy has been achieved using wavelet analysis techniques, dividing all five subbands of EEG signals, signal windowing, and extracting efficient features from the data. Additionally, alpha, beta, and gamma bands of the signal are important, and the accuracy, sensitivity, and specificity levels are higher than 98.5%. Compared to similar MS diagnostic methods, the proposed method achieved significantly higher diagnostic accuracy. Application and implementation of this method can be effective in treating neurological diseases, including multiple sclerosis.
Catalpol Enhances Random-Pattern Skin Flap Survival by Activating SIRT1-Mediated Enhancement of Autophagy
Authors: Jiang Ren-hao , Dong Cheng-ji , Chen Zhu-liu , Cheng Sheng , Yang Jian-xin , Gao Wei-yang
Published: May 2022

Random-pattern skin flap necrosis limits its application in the clinic. It is still a challenge for plastic surgeons. Catalpol is an effective ingredient extracted from Rehmannia glutinosa, which is reported to promote angiogenesis and protect against ischemic cerebral disease. The aim of our experiment is to assess whether catalpol can facilitate random flap survival and the underlying mechanisms. Male “McFarlane flap” rat models were employed to explore the protective effects of catalpol. The range of necrosis in the flap was calculated 7 days after the models were established. The flap specimens were harvested for further experiments, including angiogenesis, apoptosis, oxidative stress, and autophagy evaluation. Catalpol-treated group promoted the average survival area of the flap than that in the control group. Based on immunohistochemical staining, Western blotting, and ROS detection, we found that catalpol significantly reduces oxidative stress and apoptosis and increases angiogenesis. Hematoxylin and eosin (H&E) staining and laser Doppler images further clarified the enhancement of angiogenesis after catalpol treatment. The impact of catalpol in flap was switched by using 3-methyladenine (3MA), proving the important role of autophagy in curative effect of catalpol on skin flaps. Importantly, the ability of catalpol to regulate autophagy is mediated by the activation of sirtuin 1 (SIRT1) based on its high affinity for SIRT1. Our findings revealed that catalpol improved the viability of random skin flaps by activating SIRT1-mediated autophagy pathway.
An Artificial Neural Network-Based Pest Identification and Control in Smart Agriculture Using Wireless Sensor Networks
Authors: Singh Kamred Udham , Kumar Ankit , Raja Linesh , Kumar Vikas , Singh kushwaha Alok Kumar , Vashney Neeraj , Chhetri Manoj
Published: May 2022

Despite living in a rural country, farmers in India face several challenges. Every year, they suffer significant losses due to agricultural insect infestation. These losses are primarily the result of inadequate field surveillance, crop diseases, and ineffective pesticide management. We need cutting-edge technology that is constantly evolving to maintain control over such major concerns responsible for output reductions year after year. Wireless sensor networks address all of these issues; in fact, wireless sensor network technology is quickly becoming the backbone of modern precision agriculture. We propose a strategy for pest monitoring using wireless sensor networks in this study by simply recognizing insect behaviour using various sensors. We proposed a rapid and accurate insect detection and categorization approach based on five important crops and associated insect pests. This method examines insect behaviour by collecting data from sensors placed in the field. The results show that the proposed work improves the accuracy of the existing work by 3.9 percent.
Treatment of Cesarean Scar Pregnancy with Traditional Chinese Medicine and Warming Moxibustion
Authors: Cai Xiaqin , Shi Hengxing , Dai Senge , Wang Jiajia , Lu Bin , Zhang Qing
Published: May 2022

We aimed to report the clinical characteristics of cesarean scar pregnancy (CSP), improve the understanding of uterine scar pregnancy, and assess the outcomes of our treatment strategy for CSP. We present 30 patients with CSP diagnosed by transvaginal ultrasonography. Patients received B ultrasound-guided lauromacrogol injection, followed by evacuation under B ultrasound guidance, and intrauterine balloon compression for hemostasis. Postoperatively, all patients received Bushenquyu decoction and warming moxibustion. All patients showed fast recovery and preserved fertility. The combination of lauromacrogol injection and suction curettage under hysteroscopic guidance is an effective conservative treatment for CSP that can help preserve the reproductive function. Postoperative traditional Chinese medicine and warming moxibustion may reduce the risk of ectopic pregnancy and increase the rate of subsequent intrauterine pregnancy.
Impact of Grid Integrated Energy Storage Systems with Phasor Measuring Units for Secured Data Control Using Metaheuristic
Authors: Teekaraman Yuvaraja , Kirpichnikova Irina , Manoharan Hariprasath , Kuppusamy Ramya , Radhakrishnan Arun
Published: May 2022

In this article, malleable determinations have been made by integrating solar panels in the field of Power System State Estimation (PSSE) where the optimal placement using Phasor Measuring Units (PMUs) plays a major role in the integration process. This kind of integration provides a path for determining the importance of PMU and converting the grid to be smart. In preceding, methods of PSSE researchers were not able to demonstrate the smart grid process due to failure of integrating solar cells. Thus, the integrated solar cells in the proposed method can be able to detect the presence of false data and secure the identified data using a Data Management Systems (DMS). In addition, the DMS estimates a particular state during a certain period of time thus creating an external awareness about communicating devices. Moreover, the process of PSSE with solar cells and PMU placement mechanism functions effectively using a metaheuristic Ant Lion Optimization (ALO) where two fundamental scenarios are considered and simulated using MATLAB. The simulation results indicate that the proposed method provides satisfactory simulation results for about 67% when compared to existing method.
Construction of the Interactive Relationship between Law Enforcement and Legislation Based on the Background of Big Data
Authors: Wei Lijun
Published: May 2022

Under the background of the current era of ever-increasing speed of information technology iteration and increasing application of big data, it is necessary to conduct in-depth research on the interaction between administrative law enforcement and legislation and try to construct its system. From the perspective of big data, building an interactive system of law enforcement and legislation is also an important exploration. Starting from clarifying the existing relationship between law enforcement and legislation, this study analyzes the positive impact of big data on the construction of the interactive relationship between law enforcement and legislation. Finally, this study attempts to construct the interaction between administrative law enforcement and legislation under the background of big data by focusing on the construction and operation mechanism of the big data platform, the interaction mechanism between law enforcement and law enforcement in the big data platform, and the guarantee mechanism of the interaction between law enforcement and legislation under the big data platform to promote the establishment and improvement of a “complete legal norm system” and an “efficient rule of law enforcement system” to achieve precise governance.
Hydrogeochemical Characteristics of the Haiyuan-Liupanshan Seismic Belt at the Northeastern Edge of the Tibet Plateau
Authors: Li Xinyan , Liu Xiaopeng , Du Jianguo , Cui Yueju , Sun Fengxia
Published: May 2022

The hydrogeochemical characteristics and groundwater recharge environments along the deep-cut Haiyuan-Liupanshan fault zone (HLFZ) were investigated by major ion and isotopic compositions (δ18O and δD) of the water samples collected at 14 sites from 2016 to 2017. The Schukalev classification method, fuzzy membership function, the proportion coefficients of major ions and principal component analysis (PCA) were adopted to analysis the hydrogeochemistry, water quality, origins and controlling factors of groundwater. In terms of chemical types, the sites along HLFZ can be divided into two groups. Specifically, the Group 1 is in the north and west part of the HLFZ and the water samples are characterized by higher salinity and enriched in Na+ and SO42-, reflecting the control of evaporate dissolution in cretaceous and tertiary aquifers, reverse ionic exchange, stronger water-rock reaction and deep fluids. The higher concentrations of Ca2+ + Mg2+ and HCO3- were found in Group 2, which is located in the southeast of the HLFZ and may be attributed to carbonate weathering and the recharge of karst fissure water from ordovician dolomite and limestone. Contamination of groundwater in HLFZ is severe, with 78.6% of the sites classified as grade V, which means they cannot be used for drinking water or agriculture. The primary contaminants found in Group 1 are TDS, Na+, Cl- and SO42- and the exceedance in NO3-and pH value affect water quality in the Group 2. The 18O and δD values of groundwater in HLFZ indicated that meteoric water contributed dominantly to the groundwater and it was influenced by the water cycle and water-rock reaction. Furthermore, tectonic movement, seismicity, and the level of deformation along different segments of HLFZ are important factors in the migration of deep to shallow groundwater, and water-rock reactions during groundwater migration, which results in differences in chemical composition of the groundwater between Group 1 and Group 2. Most of the sites with higher TDS in HLFZ fall on the a higher stress state region (represented by a low b value<0.75), which reflected a possible evidence of seismic activity affected the hydrogeochemistry of groundwater.