bluuebunny/crossref_metadata_2025 huggingface dataset:
Aerobiology from an Inactive Pyrite Mine: the Genome Sequence of the Airborne
Pseudomonas
sp. Strain L5B5
Authors: Gonzalez-Pimentel Jose L. , Domínguez-Moñino Irene , Jurado Valme , Caldeira Ana Teresa , Saiz-Jimenez Cesareo
Published: December 2021

Pseudomonas
sp. strain L5B5 is an antimicrobial-producing bacterium isolated from an air sample collected in a pyrite mine in Lousal, Portugal. Genomic analyses predicted genes involved in virulence factors. Here, we report the complete genome sequence of this bacterium, which consists of a circular chromosome with a length of 6,811,662 bp.
Geology of Central Park, Manhattan, New York City, USA: New geochemical insights
Authors: Jaret* Steven J. , Tailby Nicholas D. , Hammond Keiji G. , Rasbury E. Troy , Wooton Kathleen , Ebel Denton S. , DiPadova E. , Smith Riley , Yuan Victoria , Jaffe Noa , Smith Lisa M. , Spaeth Lynsey
Published: December 2021

Here we present an overview of the geology of the Manhattan Prong and a specific guide for field stops in northern Central Park. This guide is intended to provide a brief introduction to these complex rocks for researchers, undergraduate students, and teachers. Given the easy access to Central Park and numerous schools and institutions nearby, these outcrops provide ideal teaching outcrops for students of all levels. We also present new geochemical and isotopic results for the Manhattan and Hartland Schists. Previous work has focused primarily on field mapping, structural relationships, or infrastructure-related mapping, whereas our new geochemistry data allow for more detailed discussions of provenance and overall tectonic history of these rocks. Our results suggest that all of the rocks in northern Central Park (regardless of mapped unit) are derived from Laurentia.
An Upper Cretaceous paleodrainage system on the Coastal Plain unconformity of Alabama-Georgia
Authors: Barineau* Clinton , Ortega-Ariza* Diana
Published: December 2021

Rocks of the Upper Cretaceous Tuscaloosa Formation (Cenomanian) and Eutaw Formation (Santonian) in southwestern Georgia and southeastern Alabama record an interval of fluvial and nearshore marine deposition. In the vicinity of Columbus, Georgia, basal units of the Tuscaloosa Formation consist of a residual paleosol built on crystalline rocks of the Appalachian Piedmont covered by conglomeratic sandstones deposited in braided stream systems flowing across the mid-Cenomanian Coastal Plain unconformity. The unconformity, which separates Cretaceous detrital rocks from underlying metamorphic rocks and residual paleosols built on those metamorphic rocks, lies primarily within the Tuscaloosa Formation in this region and is marked at the modern surface by the geomorphic Fall Line. Mapping of the unconformity across the region reveals areas of significant paleorelief associated with a number of distinct paleovalleys incised into the mid-Cenomanian surface. The most distinct of these lie immediately east of the Alabama-Georgia state line, within 15 km of the modern Lower Chattahoochee River Valley. Spatially, these distinct paleovalleys lie immediately north of a Santonian estuarine environment recorded in the Eutaw Formation, disconformably above the Tuscaloosa Formation. Collectively, paleo-valleys in the mid-Cenomanian surface, the fluvial nature of the Tuscaloosa Formation in southwestern Georgia and southeastern Alabama, and the estuarine environment in the younger Eutaw Formation suggest a persistent (~10 m.y.) paleodrainage system that may be a forerunner to the modern Chattahoochee River.
Supplemental Material: Zircon (U-Th)/He thermochronology of Grand Canyon resolves 1250 Ma unroofing at the Great Unconformity and <20 Ma canyon carving
Authors: Thurston Olivia G. , al. et
Published: December 2021

All geologic and thermochronologic constraints used in the forward models, major forward model results from the zircon radiation damage accumulation and annealing model (ZRDAAM) of Guenthner et al. (2013), and alternative HeFTy forward model result using different sample inputs.
Supplemental Material: Role of sediment in generating contemporaneous, diverse “type” granitoid magmas
Authors: Li Shan , al. et
Published: December 2021

Analytical methods, Figures S1 and S2, and Tables S1 and S2.
The COVID-19 pandemic and healthcare systems in Africa: a scoping review of preparedness, impact and response
Authors: Tessema Gizachew A , Kinfu Yohannes , Dachew Berihun Assefa , Tesema Azeb Gebresilassie , Assefa Yibeltal , Alene Kefyalew Addis , Aregay Atsede Fantahun , Ayalew Mohammed Biset , Bezabhe Woldesellassie M , Bali Ayele Geleto , Dadi Abel Fekadu , Duko Bereket , Erku Daniel , Gebrekidan Kahsu , Gebremariam Kidane Tadesse , Gebremichael Lemlem Gebremedhin , Gebreyohannes Eyob Alemayehu , Gelaw Yalemzewod Assefa , Gesesew Hailay Abrha , Kibret Getiye Dejenu , Leshargie Cheru Tesema , Meazew Maereg Wagnew , Mekonnen Alemayehu , Mirkuzie Alemnesh H. , Mohammed Hassen , Tekle Dejen Yemane , Tesfay Fisaha Haile
Published: December 2021

Background

The COVID-19 pandemic has overwhelmed health systems in both developed and developing nations alike. Africa has one of the weakest health systems globally, but there is limited evidence on how the region is prepared for, impacted by and responded to the pandemic.

Methods

We conducted a scoping review of PubMed, Scopus, CINAHL to search peer-reviewed articles and Google, Google Scholar and preprint sites for grey literature. The scoping review captured studies on either preparedness or impacts or responses associated with COVID-19 or covering one or more of the three topics and guided by Arksey and O’Malley’s methodological framework. The extracted information was documented following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension checklist for scoping reviews. Finally, the resulting data were thematically analysed.

Results

Twenty-two eligible studies, of which 6 reported on health system preparedness, 19 described the impacts of COVID-19 on access to general and essential health services and 7 focused on responses taken by the healthcare systems were included. The main setbacks in health system preparation included lack of available health services needed for the pandemic, inadequate resources and equipment, and limited testing ability and surge capacity for COVID-19. Reduced flow of patients and missing scheduled appointments were among the most common impacts of the COVID-19 pandemic. Health system responses identified in this review included the availability of telephone consultations, re-purposing of available services and establishment of isolation centres, and provisions of COVID-19 guidelines in some settings.

Conclusions

The health systems in Africa were inadequately prepared for the pandemic, and its impact was substantial. Responses were slow and did not match the magnitude of the problem. Interventions that will improve and strengthen health system resilience and financing through local, national and global engagement should be prioritised.
Relationship between circulating serum omentin-1 levels and nascent metabolic syndrome in patients with hypertension
Authors: Cetin Sanlialp Sara , Nar Gokay , Nar Rukiye
Published: December 2021

The prevalence of metabolic syndrome (MetS) is more common in patients with hypertension and is associated with an increased risk of target organ damage and/or cardiovascular disease (CVD). Omentin-1 is a beneficial adipokine considered to play a role in MetS and MetS-related states such as obesity, diabetes, and coronary artery disease. The aim of this study was to determine the relationship between circulating omentin-1 levels and MetS uncomplicated by diabetes or CVD (nascent MetS) in patients with hypertension. In this study, 110 patients (54 men, 49%; average age: 49.72±11.32 years) treated for hypertension but without overt diabetes and/or CVD were enrolled. 66 patients were stratified into MetS (+) (group 1) and 44 patients into MetS (−) (group 2) according to the American Heart Association/National Heart, Lung, and Blood Institute criteria. The triglyceride glucose (TyG) index was used to assess insulin resistance. Circulating omentin-1 levels in venous blood samples were measured by an ELISA kit. Circulating omentin-1 levels in patients with MetS were significantly lower than in patients without MetS (46.35 ng/mL (42.70–57.70 ng/mL) vs 130.95 ng/mL (62.83–236.48 ng/mL), p<0.001). Omentin-1 was inversely correlated with TyG index (r=−0.204, p=0.033). In a multivariate logistic regression analysis, omentin-1, TyG index, and body mass index were independent predictors of MetS. A receiver operating characteristic curve analysis determined that the best cut-off value for omentin-1 in predicting MetS was 62.20 ng/mL and the area under the curve was 0.880 (95% CI 0.817 to 0.942, p<0.001). The findings of this study suggest that circulating omentin-1 levels are inversely related to the presence of MetS and may be a reliable marker to predict the development of MetS in patients with hypertension.
Patient perception and treatment convenience of dabigatran versus vitamin K antagonist when used for stroke prophylaxis in atrial fibrillation: Real-world Evaluation of Long-term Anticoagulant Treatment Experience (RE-LATE) study
Authors: Lee Young-Soo , Oh Yong Seog , Choi Eue-Keun , Chern Alan Koay Choon , Jiampo Panyapat , Chutinet Aurauma , Hanafy Dicky Armein , Trivedi Prabhav , Zhai Dongmei
Published: December 2021

Purpose

Dabigatran is a direct thrombin inhibitor approved for stroke prophylaxis in patients with non-valvular atrial fibrillation (NVAF). Real-world data about patient preference, satisfaction and convenience in patients in Asia are not available. The study aimed to explore the perception of patients with newly diagnosed NVAF regarding dabigatran versus vitamin K antagonists (VKAs), when used for stroke prevention.

Patients and methods

This was a multinational, multicentre, non-interventional study involving 49 sites across 5 countries in South East Asia and South Korea where 934 patients newly diagnosed with NVAF were initiated on either dabigatran (N=591) or VKA (N=343). Data were collected at baseline and over two follow-up visits across 6 months. Treatment satisfaction and patient convenience were evaluated using the Perception on Anticoagulant Treatment Questionnaire-2 (PACT-Q2).

Results

The mean age of the patients was 65.9±10.4 years, and 64.2% were male. Mean CHA2DS2-VASc score was 2.4±1.5, and mean HAS-BLED score was 1.2±0.9. At baseline, patients initiated on dabigatran had higher stroke risk, bleeding risk, creatinine clearance and proportion of patients with concomitant illnesses compared with patients initiated on VKAs. Treatment convenience was perceived to be significantly better with dabigatran versus VKAs at visits 2 and 3 (p=0.0423 and 0.0287, respectively). Treatment satisfaction was significantly better with dabigatran compared with VKAs at visit 3 (p=0.0300).

Conclusion

In this study, dabigatran is associated with better patient perception in terms of treatment convenience and satisfaction compared with VKAs when used for stroke prevention in newly diagnosed NVAF patients from South East Asia and South Korea.

Trial registration number

NCT02849509.

Plain language summary

Patient satisfaction with dabigatran versus VKAs in South East Asia. Patients with atrial fibrillation are at high risk of stroke and require anticoagulants for stroke prevention. Two such anticoagulants are dabigatran and VKAs. We wanted to compare the extent of satisfaction and treatment convenience among newly diagnosed patients with atrial fibrillation from the South East Asian region when they were given either dabigatran or VKAs. Consenting patients filled out a standardised questionnaire called the PACT-Q2 over three visits after they were started on either dabigatran (591 patients) or VKAs (343 patients). We found that satisfaction and convenience were significantly higher when patients received dabigatran than when they received VKAs.
Risk perceptions and continued smoking as a function of cigarette filter ventilation level among US youth and young adults who smoke
Authors: Carroll Dana Mowls , Tessier Katelyn M , Cummings K Michael , O'Connor Richard J , Reisinger Sarah , Shields Peter G , Stepanov Irina S , Luo Xianghua , Hatsukami Dorothy K , Rees Vaughan W
Published: December 2021

Background

While evidence demonstrates that the industry’s marketing of cigarettes with higher filter ventilation (FV) misleads adults about their health risks, there is no research on the relationships between FV, risk perceptions and smoking trajectories among youth (ages 12–17) and young adults (ages 18–24).

Methods

Data on FV levels of major US cigarette brands/sub-brands were merged with the Population Assessment of Tobacco and Health Study to examine whether FV level in cigarettes used by wave 1 youth/young adults (n=1970) predicted continued smoking at waves 2–4, and whether those relationships were mediated by perceived risk of their cigarette brand. FV was modelled based on tertiles (0.2%–11.8%, low; 11.9%–23.2%, moderate; 23.3%–61.1%, high) to predict daily smoking, past 30-day smoking and change in number of days smoking at successive waves.

Results

The odds of perceiving one’s brand as less harmful than other cigarette brands was 2.21 times higher in the high versus low FV group (p=0.0146). Relationships between FV and smoking outcomes at successive waves were non-significant (all p>0.05).

Conclusion

Youth and young adults who use higher FV cigarettes perceived their brand as less harmful compared with other brands. However, level of FV was not associated with continued smoking.
Investigating the PS seismic imaging of faults using seismic modelling and data from the Snøhvit field, Barents Sea
Authors: Cunningham Jennifer Elizabeth , Weibull Wiktor Waldemar , Cardozo Nestor , Iacopini David
Published: December 2021

PS seismic data from the Snøhvit field are compared with seismic modelling to understand the effect of azimuthal separation and incidence angle on the imaging of faults and associated horizon discontinuities. In addition, the frequency content of seismic waves backscattered from faults is analysed. The study area consists of a horst structure delimited by a northern fault dipping NW and oblique to the east–west survey orientation, and a southern fault dipping SSW and subparallel to the survey. Due to the raypath asymmetry of PS reflections, the northern fault is imaged better by azimuthally partitioned W data that include receivers downdip of the fault, relative to the sources, than by E data where the receivers are updip from the sources. Partial stack data show a systematic increase in the PS fault-reflected amplitude and therefore quality of fault imaging with increasing incidence angle. Fault images are dominated by internal low-medium frequency shadows surrounded by medium-high frequencies haloes. Synthetic experiments suggest that this is due to the interaction of specular waves and diffractions, and the spectral contribution from the fault signal, which increases with fault zone complexity. These results highlight the impact of survey geometry and processing workflows on fault imaging.

Supplementary material:
model description, processed sections and videos are available at
https://doi.org/10.6084/m9.figshare.c.5727552
A Simple Algorithm for Optimal Search Trees with Two-way Comparisons
Authors: Chrobak Marek , Golin Mordecai , Munro J. Ian , Young Neal E.
Published: December 2021

We present a simple
O(n
4
)
-time algorithm for computing optimal search trees with two-way comparisons. The only previous solution to this problem, by Anderson et al., has the same running time but is significantly more complicated and is restricted to the variant where only successful queries are allowed. Our algorithm extends directly to solve the standard full variant of the problem, which also allows unsuccessful queries and for which no polynomial-time algorithm was previously known. The correctness proof of our algorithm relies on a new structural theorem for two-way-comparison search trees.
What Becomes a Senior Researcher
Authors: Jagadish H. V.
Published: December 2021

As we progress through life, our needs, desires, and even objectives, change. That certainly has been the case for me over the years. This article is my attempt at distilling what advice I can for someone making a transition from a junior to a senior researcher in the database field: think Associate Professor or someone 5 to 10 years post PhD.
Report on the Third International Workshop on Semantic Web Meets Health Data Management (SWH 2020)
Authors: Kondylakis Haridimos , Stefanidis Kostas , Rao Praveen
Published: December 2021

Creating a holistic view of patient data comes with many challenges but also brings many benefits for disease prediction, prevention, diagnosis, and treatment. Especially in the COVID-19 era, this is more important than ever before. The third International Workshop on Semantic Web Meets Health Data Management (SWH) was aimed at bringing together an interdisciplinary audience who was interested in the fields of Semantic Web, data management, and health informatics. The workshop goal was to discuss the challenges in healthcare data management and to propose new solutions for the next generation of data-driven healthcare systems. In this article, we summarize the outcomes of the workshop, and we present a number of key observations and research directions that emerged from presentations.
Calendar Degradation and Self-Discharge Occurring During Short- and Long-Term Storage of NMC Based Lithium-Ion Batteries
Authors: Knap Vaclav , Molhanec Martin , Gismero Alejandro , Stroe Daniel-Ioan
Published: December 2021

Idling periods are a major part of the Lithium-ion battery operation. Due to parasitic reactions, the battery capacity is decreasing and self-discharge occurs over time. Thus, in order to predict the battery lifetime and optimize its operation, it is required to capture this behavior. In this study, two different storage periods of 2 and 6 months were investigated and used to develop and validate models dedicated to reversible and irreversible capacity loss. It has been observed that while for the shorter storage period, the self-discharge rate does not change significantly, for the longer storage period it decreased during aging. Moreover, the degradation rates vary significantly for various time scales at low temperature, while at medium and high temperatures they are matching closely for 2- and 6-months periodic storage.
Change in the Properties of a Lead-acid Battery Depending on the Cycling Speed and the Ambient Temperature
Authors: Zimáková Jana , Baca Petr , Langer Martin , Binar Tomáš
Published: December 2021

This work deals with lead-acid batteries, their properties and individual types that are available on the market. The temperature dependences of the battery parameters at different ambient temperatures and at different discharging and charging modes are measured. 6 batteries are tested at different charging currents, which provides information about their behavior both during discharge and at the time of charging. During the experiments, testing is not only performed at room temperature, but the batteries are also exposed to high temperatures up to 75 °C.
The TiO2-Modified Separator Improving the Electrochemical Performance of Lithium-Sulfur Battery
Authors: Zukalova Marketa , Vinarcikova Monika , Pitna Laskova Barbora , Kavan Ladislav
Published: December 2021

Electrochemical performance of activated carbon/sulfur composite cathode in the Li-S cell with standard and TiO2-modified separator is evaluated by cyclic voltammetry and galvanostatic chronopotentiometry. The modification of the separator by TiO2 impregnation has beneficial effect on the charge capacity of the activated carbon/sulfur cathode in the Li-S cell. The specific capacity of the cathode in the cell with TiO2-modified separator is 632 mAh g-1 (calculated from cyclic voltammetry) and 673 mAh g-1 (determined from galvanostatic chronopotentiometry). Facile impregnation of the separator with nanocrystalline TiO2 results in the 10-20 % stable increase of the charge capacity of corresponding activated carbon/sulfur cathode as compared to its electrochemical performance in the system with non-modified separator.
Structure, Morphology and Electrochemical Characteristics of Na
x
MnO2 (x = 0.44, 0.67 and 0.8) as Cathode Materials for Na-Ion Batteries
Authors: Shmatok Yurii V. , Sirosh Vitalii A. , Globa Nataliya I.
Published: December 2021

The paper presents the results of the investigations of structural, morphological and electrochemical characteristics of Na
x
MnO2 (x = 0.44, 0.67 and 0.8) .It is shown that the crystal structure of the resulting materials is determined by the sodium content and is tunnel in a case of Na0.44MnO2 and layered in a case of Na0.67MnO2 and Na0.8MnO2. In addition, the materials obtained are characterized by different morphology. The initial discharge capacity of the materials obtained increases with the increase of sodium content in oxide phase and is 117, 139 and 151 mAh/g for Na0.44MnO2, Na0.67MnO2 and Na0.8MnO2, respectively, however, at the same time the stability of the specific capacity decreases. Using Na0.44MnO2 as an example, the effect of the electrolyte composition, in particular the presence of FEC, on its electrochemical characteristics is shown.
Application of Solar-Powered Irrigation System
Authors: Jandová Kristýna , Janda Marcel
Published: December 2021

This article deals with the issue of solar-powered irrigation, specifically, by connecting a solar power source to a drip irrigation system. Thanks to an independent energy source the irrigation system is able to work anywhere. In addition to energy independence, thanks to the drip mode of irrigation, another benefit is water saving, which is up to 70% compared to conventional irrigation. The simplicity of this system allows use both in small gardens and in agriculture. Another advantage of the system is its expandability with various sensors (e.g. soil moisture monitoring), which will help with more efficient management of watering.
Dielectric Properties of Nanocomposites Based on Epoxy Resin
Authors: Polsterova Helena
Published: December 2021

Nanocomposites are subject of research in many fields of science. Electrical technology focused on the study of electrical properties of nanocomposites including breakdown strength, relative permittivity, resistivity and other. This paper describes the results of measurement of electrical parameters of a nanocomposite at various temperatures. The nanocomposite matrix was casting epoxy resin and nanoparticles were made of TiO2 powder at different concentrations.
Corrosion of Sintered Materials Based on Fe, Fe-Si, Fe-Mg and Fe-Si-Ag in Different Solutions
Authors: Sedlarikova Marie , Zatloukal Miroslav , Bachmayer Marek , Čudek Pavel
Published: December 2021

The topic of this work is the solution of the problem of biomaterials and biocompatibility of metallic materials. The following is a procedure for the production of samples and the study of corrosion processes in various environments.
Electrical Circuit Model of Lithium-ion Batteries and Revisiting of its Parametrization Procedures
Authors: Pražanová Anna , Knap Václav
Published: December 2021

Nowadays, Lithium-ion batteries are as the most preferable technology for consumer electronics. They found their way also to electric vehicles or even satellites, mainly due to their high energy density and long life. In the applications, the batteries require a battery management system for safe and optimal operation. Often, state estimation functionalities (as state-of-charge or state-of-health) require a running battery model. Therefore, an electrical circuit model (ECM) that accurately captures a battery behavior in suitable complexity is needed. This paper presents a three steps parametrization technique of ECM for Lithium-ion batteries based on laboratory experiments. Furthermore, an analysis of SOC and temperature dependence of battery parameters has been conducted. The developed ECM is validated, and its accuracy is evaluated by Root Mean Square Error (RMSE) and Maximal Absolute Error (MaE).
Battery Monitoring System using Microcontroller ESP32 and Internet of Things
Authors: Pham Nam Ngoc , Leuchter Jan , Pham Lam Khac , Bystřický Radek , Dong Huy Quang
Published: December 2021

This paper deals with designing and implementing a battery management system (BMS) for autonomous devices, using batteries as the power source. BMSs are now available in packaged form as an integrated chip. However, these chips are often expensive and unavailable in Vietnam and the Czech markets. Besides, their ability to integrate custom functions, especially function wireless communication between BMS and workstation, is limited. In practice, monitoring the state of the battery during the device’s operation is very important to devise a suitable operating tactic. This work aims to design a system that can measure and estimate the parameters of several batteries in an unmanned autonomous device, and send the measured data to the workstation by using technology Internet of Things for monitoring and analysis during the device’s operation.
Design of Power Supply Modification of Variable Traffic Signs
Authors: Binar Tomáš , Zimáková Jana , Baca Petr , Fridrich Jiri , Sedlarikova Marie
Published: December 2021

This paper describes the design of mobile power sets for variable traffic signs for the use of energy storage in lead-acid battery. The supply point is intended primarily for use in powering traffic lights and mobile variable traffic signs for line traffic control. A test sample of the system was assembled, on which a series of measurements were performed to verify its functionality.
Modern Electromobility and the Possibility of How to Achieve a Higher Capacity of the Li-ion Batteries
Authors: Šedina Martin , Kazda Tomas
Published: December 2021

This article is describing the evolution of modern electromobilitywith describing the problematics connected with the shape of cells in battery modules. There are mentioned Li-ion battery's anode materials with their basic parameters and one of the conversion materials, silicon, which looks like promising material for future enhancing anode capacity. Usage of this material brings some new challenges, which prevents use in practice and must be solved. One of these solutions can be by applying external pressure, which can, for example, improve internal conductivity
The Novel Application of Three‐Dimensional Printing Assisted Patient‐Specific Instrument Osteotomy Guide in the Precise Osteotomy of Adult Talipes Equinovarus
Authors: Zhang Yuan-Wei , You Mu-Rong , Zhang Xiao-Xiang , Yu Xing-Liang , Zhang Liang , Deng Liang , Wang Zhe , Dong Xie-Ping
Published: December 2021

Objective. This current research is aimed at assessing clinical efficacy and prognosis of three‐dimensional (3D) printing assisted patient‐specific instrument (PSI) osteotomy guide in precise osteotomy of adult talipes equinovarus (ATE). Methods. We included a total of 27 patients of ATE malformation (including 12 males and 15 females) from June 2014 to June 2018 in the current research. The patients were divided into the routine group (n = 12) and 3D printing group (n = 15) based on different operative methods. The parameters, including the operative time, intraoperative blood loss, complications, time to obtain bony fusion, functional outcomes based on American Orthopedic Foot and Ankle Society (AOFAS), and International Congenital Clubfoot Study group (ICFSG) scoring systems between the two groups were observed and recorded regularly. Results. The 3D printing group exhibits superiorities in shorter operative time, less intraoperative blood loss, higher rate of excellent, and good outcomes presented by ICFSG score at last follow‐up (P < 0.001, P < 0.001, P = 0.019) than the routine group. However, there was no significant difference exhibited in the AOFAS score at the last follow‐up and total rate of complications between the two groups (P = 0.136, P = 0.291). Conclusion. Operation assisted by 3D printing PSI osteotomy guide for correcting the ATE malformation is novel and feasible, which might be an effective method to polish up the precise osteotomy of ATE malformation and enhance the clinical efficacy.
Early-Onset Neonatal Sepsis: Role of C-Reactive Protein, Micro-ESR, and Gastric Aspirate for Polymorphs as Screening Markers
Authors: Kaur Sukhdeep , Singh Kunwarpal
Published: December 2021

Introduction. Early-onset neonatal sepsis is a major cause of morbidness and death in newborn children. Its timely diagnosis is usually a challenge in developing countries like India. Aim. To study the efficacy of C-reactive protein (CRP), micro-ESR, and gastric aspirate for polymorphs in the diagnosis of early-onset neonatal sepsis. Materials and Methods. This study included sixty term and preterm children, inborn and referred cases. The children who presented before day seven of life with clinical suspicion of sepsis or who were at high risk of developing sepsis were included. These were further investigated. Significant values for screening tests were taken asC−reactive protein>0.6 mg/dl, micro-ESR—after 1 hour, fall in the column of blood in capillary tube was measured, and result was taken as mm fall in 1 hr, and gastric aspirate forpolymorphs>5 polymorphs/HPF. Sepsis screen positive result was 2 or more positive tests. The statistical evaluation was done using Fisher, and ANOVA tests using SPSS 20.0 version. Results. Sixty children were included in the study with forty as the referred ones. Most of them had tachypnea (45%). CRP showed high sensitivity, whereas micro-ESR and gastric aspirate for polymorphs showed high specificity. Conclusions. Neonatal sepsis screening is required for the detection of infection as the blood culture report may not be positive in all the cases, and even if positive, the result takes few hours. CRP showed high sensitivity, whereas micro-ESR and gastric aspirate for polymorphs showed high specificity independently as well as when combined.
Analysis on the Application Effect of Abdominal Acupoint Massage on Feeding Intolerance in Premature Infants
Authors: Zhu Li , Gong Yueqiu
Published: December 2021

Objective. Breast milk is the best food for newly born infants because it is more digestible and can relieve infants’ gastrointestinal burdens. The purpose of this study was to investigate the application effect of abdominal acupoint massage on feeding intolerance in premature infants. Methods. A total of 50 premature infants with feeding intolerance admitted to our hospital from January 2018 to October 2019 were selected and randomly divided into the control group (n = 25) and the experimental group (n = 25). Among them, the premature infants in the control group received routine therapy, while based on the treatment in the control group, the premature infants in the experimental group were treated with abdominal acupoint massage. After that, the incidence of feeding intolerance, MNA nutritional status score, body mass, development state, length of hospital stay, and response rate were all compared between the two groups to analyze the application effect of abdominal acupoint massage on feeding intolerance in premature infants. Results. The incidence of feeding intolerance of the premature infants in the experimental group was significantly lower than that in the control group, with statistically significant differences (

P
<
0.05

); the MNA nutritional status scores of the premature infants in the experimental group were significantly higher than those in the control group, with statistically significant differences (

P
<
0.05

); the body mass and development state of the premature infants in the experimental group were significantly better than those in the control group, with statistically significant differences (

P
<
0.05

); the length of hospital stay of the premature infants in the experimental group was significantly shorter than that in the control group, with statistically significant differences (

P
<
0.05

); the response rate in the experimental group was significantly higher than that in the control group, with statistically significant differences (

P
<
0.05

). Conclusions. Abdominal acupoint massage therapy can significantly reduce the incidence of feeding intolerance, shorten the length of hospital stay, and improve nutritional status, development state, and response rate in premature infants, with obvious therapeutic effect, which is worthy of application and promotion in clinical practice.
Impact on Biometric Identification Systems of COVID-19
Authors: Guo Yuheng
Published: December 2021

COVID-19 has had an inevitable impact on the daily life of people in 2020. Changes in behavior such as wearing masks have a considerable impact on biometric systems, especially face recognition systems. When people are aware of this impact, a comprehensive evaluation of this phenomenon is lacking. The purpose of this paper is to qualitatively evaluate the impact of COVID-19 on various biometric systems and to quantitatively evaluate face detection and recognition. The experimental results show that a real-world masked face dataset is essential to build an effective face recognition-based biometric system.
Effects of Cognitive Nursing Combined with Continuous Nursing on Postpartum Mental State and Rehabilitation
Authors: Liu Caijuan , Xiao Dailing , Han Deping , Li Shimin , Zhu Tianli , Wang Wenjuan , Zhou Li , Yan Wen , Lu Weiming
Published: December 2021

Purpose. This study is aimed at exploring the effects of cognitive nursing combined with continuous nursing on postpartum mental state and rehabilitation. Methods. Totally, 124 puerperas admitted to our hospital from January 2019 to January 2020 were selected and divided into a research group and a control group according to different nursing methods, with 62 cases in each group. The control group received routine care, while the research group received cognitive nursing combined with continuous nursing on this basis. The mental state, rehabilitation indicators, quality of life, incidence of complications, and nursing satisfaction were compared between the two groups after intervention. Results. Before nursing, there was no statistically significant difference in the SAS and SDS scores between the two groups (P > 0.05); after intervention, the SAS and SDS scores of the two groups were significantly reduced, and those of the research group were lower than those of the control group (P < 0.05). After intervention, the time of the first breastfeeding, duration of lochia rubra, length of hospital stay, and score of uterine contraction pain of the research group were lower than those of the control group (P < 0.05); the psychological function, physical function, material life, and social function scores of the research group were higher than those of the control group (P < 0.05); the incidence of complications in the research group was 4.84%, lower than 20.97% in the control group (P < 0.05); the nursing satisfaction of the research group was 96.77%, which was significantly higher than 83.87% in the control group (P < 0.05). Conclusions. Cognitive nursing combined with continuous nursing can effectively improve the mental state, shorten the length of hospital stay, increase the perceived well‐being, and promote the physical rehabilitation in puerperas, which is worth promoting in clinical practice.
Short-Term Efficacy and Quality of Life of Gastric Cancer Patients Undergoing Radical Gastrectomy Assisted by External Vision
Authors: Zheng Jian , Xue Yingwei , Li Chunfeng
Published: December 2021

Objective. To evaluate the clinical effects and survival prognosis of radical gastrectomy assisted by external vision in gastric cancer. Methods. A total of 60 hospitalized gastric cancer patients from June 2016 to December 2018 were selected and divided into the observation group and control group according to different surgical procedures. The control group was treated with traditional open radical gastrectomy, while the observation group was treated with radical gastrectomy assisted by an external vision microscope. Relevant surgical indicators, visual analogue scale (VAS), postoperative complications, and life quality assessment were analyzed and compared between the two groups. Results. The incision length and intraoperative blood loss in the observation group were smaller than those in the control group, and the difference was statistically significant (

P
<
0.05

); compared with the control group, the observation group had significantly shorter hospital stay, earlier postoperative first exhaust time, and lower gastric fluid volume at the 3rd day after surgery (

P
<
0.05

). The pain scores of the observation group at 1, 4, and 12 weeks after surgery were lower than those of the control group (

P
<
0.05

), and the difference was significant. The quality of life scores at the 1st week and 12th week after surgery showed that the dysphagia symptom scores of the observation group and the control group were significantly reduced but the two groups had significant differences in fatigue, physical function, pain score, postoperative pain, and overall quality of life. The observation group was significantly better than the control group (

P
<
0.05

). Follow-up studies showed no significant difference between mortality and cancer recurrence (

P
>
0.05

); the patients recovered well at postoperation, and the diet of the observation group was better than that of the control group (

P
<
0.05

); gastric reflux and knife pain were less than those of the control group (

P
<
0.05

). Conclusion. Radical gastrectomy assisted by external vision for gastric cancer yields clinical benefits for gastric cancer patients, which not only dramatically shortened the length of hospital stay but also effectively ameliorated the quality of life of patients, all indicating that external vision-assisted surgery was significantly better than traditional gastrectomy in improving the postoperative quality of life of gastric cancer patients in the absence of increasing the risk of adverse events.
Deep Learning-Based Sentiment Analysis of COVID-19 Vaccination Responses from Twitter Data
Authors: Alam Kazi Nabiul , Khan Md Shakib , Dhruba Abdur Rab , Khan Mohammad Monirujjaman , Al-Amri Jehad F. , Masud Mehedi , Rawashdeh Majdi
Published: December 2021

The COVID-19 pandemic has had a devastating effect on many people, creating severe anxiety, fear, and complicated feelings or emotions. After the initiation of vaccinations against coronavirus, people’s feelings have become more diverse and complex. Our aim is to understand and unravel their sentiments in this research using deep learning techniques. Social media is currently the best way to express feelings and emotions, and with the help of Twitter, one can have a better idea of what is trending and going on in people’s minds. Our motivation for this research was to understand the diverse sentiments of people regarding the vaccination process. In this research, the timeline of the collected tweets was from December 21 to July21. The tweets contained information about the most common vaccines available recently from across the world. The sentiments of people regarding vaccines of all sorts were assessed using the natural language processing (NLP) tool, Valence Aware Dictionary for sEntiment Reasoner (VADER). Initializing the polarities of the obtained sentiments into three groups (positive, negative, and neutral) helped us visualize the overall scenario; our findings included 33.96% positive, 17.55% negative, and 48.49% neutral responses. In addition, we included our analysis of the timeline of the tweets in this research, as sentiments fluctuated over time. A recurrent neural network- (RNN-) oriented architecture, including long short-term memory (LSTM) and bidirectional LSTM (Bi-LSTM), was used to assess the performance of the predictive models, with LSTM achieving an accuracy of 90.59% and Bi-LSTM achieving 90.83%. Other performance metrics such as precision,, F1-score, and a confusion matrix were also used to validate our models and findings more effectively. This study improves understanding of the public’s opinion on COVID-19 vaccines and supports the aim of eradicating coronavirus from the world.
Synchronization of Chaotic Systems: A Generic Nonlinear Integrated Observer‐Based Approach
Authors: Hussain Muhammad Majid , Siddique Muhammad , Almohaimeed Ziyad M. , Shamshad Romaisa , Akram Rizwan , Aslam Naeem
Published: December 2021

The purpose of this research is to study the synchronization of two integrated nonlinear systems with time delay and disturbances. A nonlinear system is a system in which the difference in output is not relative to the difference in input. A new control methodology for synchronization of the two chaotic systems master and slave is recognized by means of the unique integrated chaotic synchronous observer and the integrated chaotic adaptive synchronous observer. The instantaneous approximation states of the master and slave systems are accomplished by means of methods for suggesting observers for every one of the master and slave systems and by the production of error signals between these approximated states. This approximated synchronization error signal and state approximation errors meet at the origin by means of methods involving a particular observer‐based feedback control signal to ensure synchronization and state approximation. Using Lyapunov stability theory, adaptive and nonadaptive laws for control systems, and nonlinear properties, the intermingling conditions for state approximation errors and approximated synchronization errors are established as nonlinear matrix inequalities. A solution to the resulting inequality constraints using a two‐step linear matrix inequality (LMI)‐based approach is introduced, giving essential and adequate conditions to extract values from the controller gain and observer gain matrices. Simulation of the suggested synchronization procedure for FitzHugh–Nagumo neuronal systems is demonstrated to expand the viability of the suggested observer‐based control techniques.
The Potential Therapeutic Role of Mesenchymal Stem Cells-Derived Exosomes in Osteoradionecrosis
Authors: Li Yuetian , Wang Xinyue , Pang Yu , Wang Shuangcheng , Luo Meng , Huang Bo
Published: December 2021

As one of the most serious complications of radiotherapy, osteoradionecrosis (ORN) seriously affects the quality of life of patients and even leads to death. Vascular injury and immune disorders are the main causes of bone lesions. The traditional conservative treatment of ORN has a low cure rate and high recurrent. Exosomes are a type of extracellular bilayer lipid vesicles secreted by almost all cell types. It contains cytokines, proteins, mRNA, miRNA, and other bioactive cargos, which contribute to several distinct processes. The favorable biological functions of mesenchymal stem cells-derived exosomes (MSC exosomes) include angiogenesis, immunomodulation, bone regeneration, and ferroptosis regulation. Exploring the characteristic of ORN and MSC exosomes can promote bone regeneration therapies. In this review, we summarized the current knowledge of ORN and MSC exosomes and highlighted the potential application of MSC exosomes in ORN treatment.
Modern Art Interactive Design Based on Artificial Intelligence Technology
Authors: Zhang Weihua , Jia Yufeng
Published: December 2021

To improve the effect of modern art design, this study presents a camera pose estimation algorithm based on the least feature points of quaternion. Moreover, this study detects and matches the feature points of the camera image and establishes a system of formulas through the rigid constraints of the feature points, thereby constructing an eigenvalue problem to solve the camera pose. In addition, this study combines artificial intelligence technology to construct the modern art interactive design system and structure the system function structure. Finally, this study analyzes the logical structure and spatial structure of the system and uses the design to analyze the performance of the modern art interaction design model proposed in this study. Through experimental research, it can be known that the modern art interactive design system based on artificial intelligence technology proposed in this study can basically meet the artistic design needs of the new media era.
Mathematical Model for Charpy Impact Energy of V‐Notch Specimens
Authors: Wang Wei , Wang Ping , Liu Xuesong , Dong Zhibo , Fang Hongyuan
Published: December 2021

Firstly, by analyzing the response of Charpy V‐notch specimen impacted by pendulum, the relationship between specimen geometry, material properties, and impact energy is established and simplified, and the mathematical model for evaluating impact energy of specimens with different sizes is established. Then, the effectiveness of the model through a series of impact tests is verified. Theoretical analysis and experimental results show that the relationship between ligament length and impact energy is quadratic, while the relationship between ligament thickness and impact energy is linear. In the derivation process, the intrinsic impact toughness is used to evaluate the toughness of materials. The mathematical model makes it possible to evaluate the impact energy of specimens with different sizes and provides a theoretical basis for evaluating the impact resistance of structures.
Neural Network-Guided Sparse Recovery for Interrupted-Sampling Repeater Jamming Suppression
Authors: Wang Zijian , Yu Wenbo , Yu Zhongjun , Luo Yunhua , Li Jiamu
Published: December 2021

Interrupted-sampling repeater jamming (ISRJ) is a new type of DRFM-based jamming designed for linear frequency modulation (LFM) signals. By intercepting the radar signal slice and retransmitting it many times, ISRJ can obtain radar coherent processing gain so that multiple false target groups can be formed after pulse compression (PC). According to the distribution characteristic of the echo signal and the coherence of ISRJ to radar signal, a new method for ISRJ suppression is proposed in this study. In this method, the position of the real target is determined using a gated recurrent unit neural network (GRU-Net), and the real target can be, therefore, reconstructed by adaptive filtering in the sparse representation of the echo signal based on the target locating result. The reconstruction result contains only the real target, and the false target groups formed by ISRJ are suppressed completely. The target locating accuracy of the proposed GRU-Net can reach 92.75%. Simulations have proved the effectiveness of the proposed method.
Assessment of Cortical Plasticity in Schizophrenia by Transcranial Magnetic Stimulation
Authors: Abualait Turki , Alzahrani Sultan , AlOthman Ahmed , Alhargan Fahad Abdulah , Altwaijri Nouf , Khallaf Rooa , Nasim Eman , Bashir Shahid
Published: December 2021

Neural plasticity refers to the capability of the brain to modify its structure and/or function and organization in response to a changing environment. Evidence shows that disruption of neuronal plasticity and altered functional connectivity between distinct brain networks contribute significantly to the pathophysiological mechanisms of schizophrenia. Transcranial magnetic stimulation has emerged as a noninvasive brain stimulation tool that can be utilized to investigate cortical excitability with the aim of probing neural plasticity mechanisms. In particular, in pathological disorders, such as schizophrenia, cortical dysfunction, such as an aberrant excitatory-inhibitory balance in cortical networks, altered cortical connectivity, and impairment of critical period timing are very important to be studied using different TMS paradigms. Studying such neurophysiological characteristics and plastic changes would help in elucidating different aspects of the pathophysiological mechanisms underlying schizophrenia. This review attempts to summarize the findings of available TMS studies with diagnostic and characterization aims, but not with therapeutic purposes, in schizophrenia. Findings provide further evidence of aberrant excitatory-inhibitory balance in cortical networks, mediated by neurotransmitter pathways such as the glutamate and GABA systems. Future studies with combining techniques, for instance, TMS with brain imaging or molecular genetic typing, would shed light on the characteristics and predictors of schizophrenia.