bluuebunny/crossref_metadata_2025 huggingface dataset:
Phytoconstituents and Antimycobacterial Activities of Root Extracts and Fractions from Vernonia glabra, (Steetz) Vatke
Authors: Banda Gladys Chimwemwe , Monjerezi Maurice , Sumani Jimmy , Mpeketula Placid M. G.
Published: October 2022

Vernonia glabra is used by Malawian traditional healers to treat a myriad of ailments including shingles, diabetes, dysentery, diarrhoea, cough, wounds, gonorrhoea, and gastrointestinal problems. This study evaluated phytoconstituents and the in vitro antimycobacterial activities of the crude extracts and fractions from roots of Vernonia glabra. Agar disk diffusion and modified broth microdilution assays were used to determine the antimycobacterial activities of dichloromethane (DCM) and ethyl acetate (EtOAc) crude extracts and fractions from the roots. Gas chromatography-mass spectrometry (GC-MS) and Fourier-transform infrared spectroscopy (FTIR) analyses were used to characterise the major compounds in the crude extracts and fractions. The EtOAc fraction exhibited the highest antimycobacterial activity against Mycobacterium tuberculosis H37Rv. The EtOAc fraction achieved a minimum inhibitory concentration (MIC) of 4.88 μg/mL and a half-maximal inhibitory concentration (IC50) value of 38.37 μg/mL, whereas gentamycin, a standard drug, achieved MIC and IC50 values of 3.13 μg/mL and 3.88 μg/mL, respectively. GC-MS and FTIR analyses of the EtOAc fractions revealed the presence of hexadecenoic acid, methyl ester (0.39%), diisooctyl phthalate (24.56%), oxalic acid, allyl undecyl ester (4.66%), bis(2-ethylhexylphthalate) (5.41%), octacosane (51.12%), tetradecane (12.63%), phenol, 3,5-bis(1,1-dimethylethyl) (0.07%), and 2-hydroxy-4-methylbenzaldehyde (6.47%). The identified compounds are reported in the literature to possess antimicrobial and anticancer activities. It was evident from the comparison of the hill slope (HS) values of the dose-response curves of the fraction (−1.005) and its crude extract (−1.322) that repeated fractionation improved the activity. Therefore, this study showed that the roots of Vernonia glabra present a potential source of new leads for antimycobacterial drugs.
Consumer Behavior Based on Big Data and Cloud Computing and Construction of Customer Perception Mobile Terminal System
Authors: Yu Chih-Lung , Shu Ming Hung , Ho Ping-Tsan , Huang Jui-Chan
Published: October 2022

The arrival of the era of big data has realized the transformation of people’s production and lifestyle. At the same time, it also increases people’s desire to consume, and the feedback behavior of consumers’ comments and ratings is the feedback of users’ experience in merchants’ products, that is, the matching of products to consumer needs and preferences. When the product can reach the user’s satisfaction level, the customer-aware mobile terminal system is constructed and optimized by using the advanced methods and technologies of big data information display and the principles and laws of the collaborative filtering algorithm in cloud computing. It ensures the ecological development of the consumer industry. Among them, in the experimental evaluation of the collaborative filtering recommendation algorithm, the mean absolute error (MAE) and root mean square error (RMSE) values of the SVD++ algorithm are higher than those of the other three algorithm models, indicating that other algorithm models can effectively improve the accuracy of the recommendation algorithm. A cross-sectional comparative analysis of experimental results has shown that, as the number of neighbors increased, the MAE and RMSE values first decreased and then increased. When the number of neighbors N is 25, the MAE and RMSE reach the minimum value, so the optimal number of neighbors is 25. Therefore, it is very important to use the collaborative filtering algorithm to analyze and construct the consumer behavior and customer perception mobile terminal system.
Preprocessing Approach for Power Transformer Maintenance Data Mining Based on k-Nearest Neighbor Completion and Principal Component Analysis
Authors: Manyol Moïse , Eke Samuel , Massoma Alphonse J. M. , Biboum Alain , Mouangue Ruben
Published: October 2022

The accuracy of a knowledge extraction algorithm in a large database depends on the quality of the data preprocessing and the methods used. The massive amounts of data that we collect every day are putting storage capacity at a premium. In reality, many databases are characterized by attributes with outliers, redundant, and even more missing values. Missing data and outliers are ubiquitous in our databases, and imputation techniques will help us mitigate their influence. To solve this problem, as well as the problem of data size, this paper proposes a data preprocessing approach based on the k-nearest neighbor (KNN) completion for imputation of missing data and principal component analysis (PCA) for processing redundant data, thus reducing the data size by generating a significant quality sample after imputation of missing and outlier data. A rigorous comparison is made between our approach and two others. The dissolved gas data from Rio Tinto Alcan’s transformer T0001 were imputed by KNN, where k equals 5. For 6 imputed gases, the average percentage error is about 2%, 17.5% after average imputation, and 23.65% after multiple imputations. For data compression, 2 axes were selected based on the elbow rule and the Kaiser threshold.
Construction of Rheumatoid Arthritis Risk Prediction and Medical Image Applications from Rheumatoid Factor Levels
Authors: Li Wenrun , Bi Sheng , Liang Yu , Zhu Hongyan
Published: October 2022

Objective. To study the value of rheumatoid factor (RF) levels in the risk assessment of rheumatoid arthritis (RA) and combined hypertension and diabetes mellitus (DM) and construct RA risk prediction and medical image applications from rheumatoid factor levels. Methods. A total of 249 RA patients who were treated in the First People’s Hospital of Yunnan Province, and another 149 non-RA people were selected as the controls. The clinical data and the detection results of serum circulating RF_IgA, RF_IgG, and RF_IgM were collected. The receiver operating curve (ROC) and logistic regression were used to analyze the value of RF levels in the risk assessment of RA and combined hypertension and DM. Results. After adjusting for age, BMI, smoking, drinking, hypertension, and diabetes, logistic regression analysis showed that RF_IgA positive, RF_IgG positive, and RF_IgM positive were all independent risk factors for RA (

P
<
0.05

). The area under the curve (AUC) of circulating RF_IgA, RF_IgG, and RF_IgM levels in predicting RA was 0.79 (95% CI: 0.74-0.83,

P
<
0.001

), 0.73 (95% CI: 0.68-0.78,

P
<
0.001

), and 0.87 (95% CI: 0.84-0.91,

P
<
0.001

), respectively. The AUC for predicting RA was 0.88 (95% CI: 0.85-0.92,

P
<
0.001

) when combined detection of circulating RF_IgA, RF_IgG, and RF_IgM levels in peripheral blood. After adjusting for age and sex, logistic regression analysis showed that RF_IgA positive, RF_IgG positive, and RF_IgM positive were not independent risk factors for DM in RA patients (

P
>
0.05

). Conclusion. The levels of serum circulating RF_IgA, RF_IgG, and RF_IgM are valuable indicators for predicting the risk of RA, but not for the risk of RA complicated with hypertension and DM.
[Retracted] Surgery and Postoperative Care of Patients Undergoing Percutaneous Nephrolithotomy under the Guidance of B‐Ultrasound Based on Smart Internet of Things
Authors: Niu Hongyan , Li Wei
Published: October 2022

At present, percutaneous nephrolithotomy has become an option for hospitals increasingly to treat calculus. However, due to the certain risk of percutaneous nephrolithotomy, it may lead to postoperative complications. Analyzing the preoperative factors of septic shock after percutaneous nephrolithotomy can provide guidance for reducing the incidence of septic shock after PCNL. This article establishes a logistic regression model based on preoperative factors, uses statistical methods, and uses the professional statistical software SPSS to create a database and analyze the data. The method of classification data analysis was used to determine various influencing factors including patient factors, stone factor, and preoperative factors and combined B‐ultrasound guidance and percutaneous nephrolithotomy to reduce the risk of surgery. The experimental results found that the percutaneous nephroscope laser lithotripsy guided by the smart Internet of Things can effectively perform lithotripsy; in this paper, the preoperative data of different complications are obtained, and the risk of surgery is closely related to the operation time. The operation time exceeds 90 minutes and causes the risk of severe bleeding after PCNL. It is twice the operation time of less than 90 minutes and 5 times the operation time of less than 60 minutes.
Research on Reactive Power Optimization Strategy under the Intelligent Improvement Model of the Distribution Network
Authors: Yu Menglin
Published: October 2022

In order to improve the reactive power optimization effect of the distribution network, this paper combines the multiagent deep reinforcement learning algorithm to analyze the reactive power optimization strategy of the distribution network and constructs an intelligent optimization model. Moreover, the simulation models of power conversion elements, power transmission elements, control elements, and measurement elements in the platform are described, and the program structure and interactive functions are analyzed. In addition, this paper proposes a reactive power optimization method for distribution networks based on data-driven thinking. Finally, by using historical data and an artificial neural network, this paper extracts electrical quantity data such as load power and distributed power output and environmental data such as temperature and wind speed to perform multiagent analysis. The experimental verification shows that the reactive power optimization effect of the distribution network based on multiagent and multiagent deep reinforcement learning proposed in this paper is very good.
Identification of Suitable Land for Livestock Production Using GIS-Based Multicriteria Decision Analysis and Remote Sensing in the Bale Lowlands, Ethiopia
Authors: Balew Abel , Legese Behailu , Kunbushu Derara , Nega Worku , Alebel Wubshet , Kerbesh Abebe , Mijanur Rahman Md.
Published: October 2022

Rangeland resources of the Bale lowlands have been degraded due to climate change, human factors, lack of sufficient environmental and rangeland policies, disaster mitigation strategies, and good management. The study identified suitable rangeland for cattle, sheep, goat, and camel production in the Bale lowlands using GIS-Based Multicriteria Decision Analysis and remote sensing techniques. Land-use and land-cover, rainfall, water accessibility, slope, and soil types were used for the suitability analysis. The study showed that an area of 4112, 16311, 6643, and 9820 km2 was highly suitable for cattle, sheep, goats, and camels, respectively. The results of the study also indicated that an area of 40099, 30925, 41981, and 36802 km2 was moderately suitable for cattle, sheep, goats, and camels, respectively. In addition, an area of 7644, 4671, 3630, and 5632 km2 was marginally suitable for cattle, sheep, goats, and camels, respectively. On the other hand, an area of 399 and 346 km2 was not suitable for cattle and sheep, respectively. The study is important for improving livestock production and mitigating the impacts of traditional livestock mobility on local communities. The study can also provide insights for government authorities to formulate environmental and rangeland policies to identify rangeland types and separate the rangeland for each livestock category.
A Composite Bioinformatic Analysis to Explore Endoplasmic Reticulum Stress-Related Prognostic Marker and Potential Pathogenic Mechanisms in Glioma by Integrating Multiomics Data
Authors: Fan Xin , Nie Xiyi , Huang Junwen , Zhang Lingling , Wang Xifu , Lu Min
Published: October 2022

In recent years, abnormal endoplasmic reticulum stress (ERS) response, as an important regulator of immunity, may play a vital role in the occurrence, development, and treatment of glioma. Weighted correlation network analysis (WGCNA) based on six glioma datasets was used to screen eight prognostic-related differentially expressed ERS-related genes (PR-DE-ERSGs) and to construct a prognostic model. BMP2 and HEY2 were identified as protective factors (HR < 1), and NUP107, DRAM1, F2R, PXDN, RNF19A, and SCG5 were identified as risk factors for glioma (HR > 1). QRT-PCR further supported significantly higher DRAM1 and lower SCG5 relative mRNA expression in gliomas. Our model has demonstrated excellent performance in predicting the prognosis of glioma patients from numerous datasets. In addition, the model shows good stability in multiple tests. Our model also shows broad clinical promise in predicting drug treatment effects. More immune cells/processes in the high-risk population with poor prognosis illustrate the importance of the tumor immunosuppressive environment in glioma. The potential role of the HEY2-based competitive endogenous RNA (ceRNA) regulatory network in glioma was validated and revealed the possible important role of glycolysis in glioma ERS. IDH1 and TP53 mutations with better prognosis were strongly associated with the risk score and PR-DE-ERSGs expression in the model. mDNAsi was also closely related to the risk score and clinical characteristics.
Guideline-Directed Medical Therapy Attainment and Outcomes in Dialysis-Requiring Versus Nondialysis Chronic Kidney Disease in the ISCHEMIA-CKD Trial
Authors: Mathew Roy O. , Maron David J. , Anthopolos Rebecca , Fleg Jerome L. , O’Brien Sean M. , Rockhold Frank W. , Briguori Carlo , Roik Marek F. , Mazurek Tomasz , Demkow Marcin , Malecki Robert , Ye Zhiming , Kaul Upendra , Miglinas Marius , Stone Gregg W. , Wald Ron , Charytan David M. , Sidhu Mandeep S. , Hochman Judith S. , Bangalore Sripal
Published: October 2022

Background:

Patients with chronic kidney disease (CKD) on dialysis (CKD G5D) have worse cardiovascular outcomes than patients with advanced nondialysis CKD (CKD G4-5: estimated glomerular filtration rate <30 mL/[min·1.73m
2
]). Our objective was to evaluate the relationship between achievement of cardiovascular guideline-directed medical therapy (GDMT) goals and clinical outcomes for CKD G5D versus CKD G4-5.

Methods:

This was a subgroup analysis of ISCHEMIA-CKD (International Study of Comparative Health Effectiveness With Medical and Invasive Approaches—Chronic Kidney Disease) participants with CKD G4-5 or CKD G5D and moderate-to-severe myocardial ischemia on stress testing. Exposures included dialysis requirement at randomization and GDMT goal achievement during follow-up. The composite outcome was all-cause mortality or nonfatal myocardial infarction. Individual GDMT goal (smoking cessation, systolic blood pressure <140 mm Hg, low-density lipoprotein cholesterol <70 mg/dL, statin use, aspirin use) trajectory was modeled. Percentage point difference was estimated for each GDMT goal at 24 months between CKD G5D and CKD G4-5, and for association with key predictors. Probability of survival free from all-cause mortality or nonfatal myocardial infarction by GDMT goal achieved was assessed for CKD G5D versus CKD G4-5.

Results:

A total of 415 CKD G5D and 362 CKD G4-5 participants were randomized. Participants with CKD G5D were less likely to receive statin (–6.9% [95% CI, –10.3% to –3.7%]) and aspirin therapy (−3.0% [95% CI, −5.6% to −0.6%]), with no difference in other GDMT goal attainment. Cumulative exposure to GDMT achieved during follow-up was associated with reduction in all-cause mortality or nonfatal myocardial infarction (hazard ratio, 0.88 [95% CI, 0.87–0.90]; per each GDMT goal attained over 60 days), irrespective of dialysis status.

Conclusions:

CKD G5D participants received statin or aspirin therapy less often. Cumulative exposure to GDMT goals achieved was associated with lower incidence of all-cause mortality or nonfatal myocardial infarction in participants with advanced CKD and chronic coronary disease, regardless of dialysis status.

Registration:

URL:
https://www.clinicaltrials.gov
; Unique identifier: NCT01985360.
The ground spider genera Leptodrassex Murphy, 2007 and Leptopilos Levy, 2009 (Araneae: Gnaphosidae) in southern Africa, including the description of a new genus and seven new species
Authors: HADDAD CHARLES R. , BOOYSEN RUAN
Published: October 2022

The ground spider genera Leptodrassex Murphy, 2007 and Leptopilos Levy, 2009 are recorded from southern Africa for the first time, with the description of five new species: Leptodrassex murphyi sp. nov. (♂ ♀) from Mozambique and South Africa, and L. capensis sp. nov. (♀) from South Africa; Leptopilos butleri sp. nov. (♂ ♀) and L. vasivulva sp. nov. (♂ ♀) from Botswana, South Africa and Zimbabwe, and L. digitus sp. nov. (♂ ♀) from South Africa. Further, the new genus Afrodrassex gen. nov. is described, with the type species A. balrog sp. nov. (♂ ♀) from South Africa and Angola, and A. catharinae sp. nov. (♂ ♀) from South Africa described therein. Details of the somatic and genitalic morphology of all three genera are examined by scanning electron microscopy, and revised descriptions of Leptodrassex and Leptopilos are presented.
Dilacera, a new astonishing Amazonian genus of termitophilous rove beetle (Staphylinidae: Aleocharinae: Termitonannini) and updated checklist of the subtribe Termitonannina with their termite hosts
Authors: ZILBERMAN BRUNO , PIRES-SILVA CARLOS M.
Published: October 2022

The subtribe Termitonannina consists of eight genera of termitophilous rove beetles from the Neotropical region associated with termites of the subfamilies Apicotermitinae, Nasutitermitinae, Syntermitinae, and Termitinae. A new genus, Dilacera Zilberman & Pires-Silva gen. nov. is established, and a new species, Dilacera exokosmos Zilberman & Pires-Silva gen. et sp. nov., from the Brazilian Amazon, is described and illustrated, with its morphological distinctiveness within the subtribe, discussed. Remarks on the host relationship with Uncitermes teevani (Emerson, 1925) (Termitidae: Syntermitinae) are provided, with an updated checklist of termitophilous species and their associated hosts within Termitonannina, including a discussion on confusing nomenclatural takes on termite hosts.
Two new species of Trichrysis Lichtenstein (Hymenoptera: Chrysididae) from Vietnam and China, with taxonomic notes on other species from the Oriental region
Authors: NGUYEN LIEN THI PHUONG , WIŚNIOWSKI BOGDAN , TRAN NGAT THI , TRAN DUONG DINH , ROSA PAOLO
Published: October 2022

Two new species of the genus Trichrysis Lichtenstein, belonging to the cyanea species group, are described from northeastern Vietnam (Cao Bang Province) and China (Yunnan Province) as new for science: T. sinica Rosa, Nguyen & Wiśniowski, sp. nov., and T. striata Nguyen, Wiśniowski & Rosa, sp. nov. The redescription of T. tonkinensis (Mocsáry, 1914) and additional descriptive characters for T. chamchuensis Wiśniowski & Nguyen, 2020 are provided.
The Influences of Atlantic Sea Surface Temperature Anomalies on the ENSO-Independent Interannual Variability of East Asian Summer Monsoon Rainfall
Authors: Yang Ying , Zhu Zhiwei , Shen Xinyong , Jiang Leishan , Li Tim
Published: October 2022

As the most dominant tropical climate mode on the interannual time scale, El Niño–Southern Oscillation (ENSO) is suggested to significantly influence the interannual variation of East Asian summer monsoon rainfall (IEASMR). However, the leading mode of IEASMR remains almost untouched when the impacts of preceding ENSO events are linearly removed, suggesting the existence of alternative impact factors and predictability sources of IEASMR. After removing the impact of ENSO, the sea surface temperature anomalies (SSTAs) over both the tropical Atlantic and extratropical North Atlantic are found to be related to IEASMR through atmospheric teleconnections. Positive SSTA over the tropical Atlantic could induce tropical diabatic heating, which triggers an equivalent barotropic Rossby wave train emanating from the Atlantic, going across the Eurasian continent, and ending with a cyclonic anomaly over northeast Asia. The tropical diabatic heating could also induce western North Pacific anomalous anticyclone via tropical routes. The dipole SSTA pattern with cooling in the west and warming in the east over the extratropical North Atlantic induces local circulation anomalies through heat flux exchange, which could further perturb a Rossby wave train with a cyclonic anomaly over northeast Asia, thus modulating IEASMR. Numerical experiments with prescribed atmospheric heating associated with Atlantic SSTAs could realistically reproduce these teleconnections toward IEASMR. By adding the predictability sources of Atlantic SSTAs, the seasonal hindcast skills of IEASMR could be significantly improved over both the tropical western North Pacific and subtropical land regions such as central China and Japan.

Significance Statement

The purpose of this article is to identify the alternative impact factors of the interannual variation of East Asian summer monsoon rainfall (IEASMR), after removing the impact of ENSO, considering the limited contribution of ENSO to the variances of IEASMR. Here, we find that the Atlantic sea surface temperature anomalies (SSTAs) play a considerable role in driving IEASMR. The impact of ENSO on IEASMR is mainly confined to the tropical western North Pacific, while the Atlantic SSTAs influence rainfall over subtropical East Asia and the tropical western North Pacific through both tropical and extratropical routes. The results unravel the important roles of Atlantic SSTAs in driving ENSO-independent IEASMR, which will have a large implication for the seasonal prediction of East Asian summer climate.
On the Rapid Weakening of Typhoon Trami (2018): Strong Sea Surface Temperature Cooling Associated with Slow Translation Speed
Authors: Chang Kuo-Feng , Wu Chun-Chieh , Ito Kosuke
Published: October 2022

This work investigates the rapid weakening (RW) processes of Typhoon Trami (2018) by examining sea surface temperature (SST) cooling based on air–sea coupled simulations during typhoon passage. The cold wake and Trami’s RW occurred as the storm was moving at a very slow translation speed. A marked structural change of Trami is found in a three-dimensional ocean-coupled model experiment during the RW stage, in which the convective clouds and convective bursts in the inner core of the simulated TC dramatically decrease, resulting in the loss of diabatic heating and leading to weakening of the TC. In the simulation, the enthalpy flux dramatically decreases in the inner core because of the SST cooling during the RW period, while a stable boundary layer (SBL) is formed in the TC’s inner-core region. The expanding SBL coverage stabilizes the atmosphere and suppresses convection in the inner core, leading to weakening of the storm. A more stable atmosphere in the cold wake is also identified by the inner-core dropsonde data from the field program of Tropical Cyclones-Pacific Asian Research Campaign for Improvement of Intensity Estimations/Forecasts. The strong SST cooling also changes the evolution of Trami’s eyewall replacement cycle (ERC) and limits the eyewall contraction after the ERC.
In Situ Downhole Fluid Analysis Systems Using LED, Laser-Induced Fluorescence, and Uranine-Traced Drilling Water
Authors: Bobe Alexandra , Pavlova Anna , Polyakov Vadim
Published: October 2022

The paper discusses a novel three-channel method to distinguish the formation oils, water, and uranine-based drilling mud and to monitor the clean-up process in the downhole fluid analysis systems. The proposed method is based on the study of the fluorescence spectra of the formation fluid or drilling mud samples. The experiment for different excitation sources (365 nm, 395 nm LEDs, and 405 nm, 460 nm laser sources) was carried out; the spectra were recorded with a VISION2GO VIS spectrometer. The characteristic features in fluorescence spectra of the crude oil sample and various concentrations of the uranine solution in pH-neutral water (5 mg/l, 10 mg/l, 25 mg/l, 50 mg/l, 100 mg/l) were observed. The sufficient unambiguous criterion for differentiating the type of fluid and clean-up process analysis is presented.
Comparison Between Pediatric Patients With and Without Close Contact With COVID-19 in a Brazilian City During SARS-CoV-2 Pandemics
Authors: Pinto Isabela M.C. , Helito Alberto C. , Fonseca Ricardo Luiz A. , Gumiero Flavia N. , El-Mafarjeh Elias , Luglio Michele
Published: October 2022

Objective:

To analyze clinical differences between a pediatric population with and without confirmed positive close contact for the new coronavirus, to establish the symptoms that define a population currently served in a children’s emergency room for which polymerase chain reaction (PCR) collection for SARS-COV-2 is performed, and thus, make clinical and laboratory screening more reliable and applicable in medical routine.

Method:

Cross-sectional study that characterized 128 children (0-17 years old) who collected PCR for SARS-COV-2 when seen in an emergency room at a private hospital between March and June 2020. Data were collected from the electronic medical record of the researched hospital.

Results:

Patients positive for close contact with COVID-19 had more diarrhea ( P = .03) and less fever ( P = .003) and coughing ( P = .03). There was no statistically significant difference between the 2 groups on gender distribution, age, isolation of other etiologic agents, chest x-ray abnormalities, or the need for hospitalization. SARS-Cov-2 PCR showed a higher positivity among patients on the close contact positive group ( P < .001).

Conclusion:

As seen in previous research, positive SARS-CoV-2 tests are not required for the pediatric population to be diagnosed with the new coronavirus. Diarrhea should be included in those related to a high suspicion of potential SARS-CoV-2 infection, prompting nasopharyngeal PCR collection. However, fever and cough are unspecific symptoms for SARS-CoV-2 infection and should not be considered as warning signs for parents and, more importantly, for pediatricians to collect screening examinations.
A reliable detection method for nano-silver in functional textiles
Authors: Yang Haifeng , Li Junfang , Xi Guangcheng , Guo Xingzhou , Li Yahui , Bai Hua
Published: October 2022

Except for conventional functions, special textiles doped with nanoscale particles have shown quite attractive properties, such as antibacterial activity, deodorization, hydrophobicity, and ultraviolet/electromagnetic protection. However, facile and reliable methods for quality assessment of those functional nano-textiles are remarkably demanded for market surveillance and consumer protection. Herein, a novel detection method of silver in textiles was established for the comprehensive detection and a practical flow chart was also demonstrated as an experimental pathway including pretreatment, qualitative and quantitative analysis. The optimal ashing parameter (450°C for 1 h) in the pretreatment process was explored to improve detection sensitivity. The qualitative analysis was performed through X-ray diffraction for crystallinity, scanning electron microscopy for morphology, and energy-dispersive X-ray spectroscopy (EDS) for elements. The real existent status of the silver components could be decided via the flow chart. As shown with the detected sample, the content was calculated by the weight loss at 1050–1500°C from thermogravimetric analysis measurement and the accuracy of the quantitative process was also checked via inductively coupled plasma mass spectrometry. Finally, the detection limit of the method was investigated up to μg/g. The obvious advantage of the reported method was facile and reliable to achieve comprehensive identification from the dimension scale and crystal form to the component. Moreover, this analytical strategy could be also applied for the detection of other nanoscale metals or metal oxides in functional textiles.
Measurement of axial motion yarn tension based on transverse vibration frequency
Authors: Peng Laihu , Li Yang , Zheng Qiuyang , Hu Xudong
Published: October 2022

In the process of textile production, the detection of yarn tension is very important to ensure product quality. In order to detect yarn tension efficiently and conveniently, a non-contact detection method based on transverse frequency was established. Firstly, the governing equation of yarn motion was derived by using the Hamilton principle and solved by the Galerkin truncation method. Then, the natural frequencies of yarns with different linear density were calculated according to the yarn characteristic equation. Finally, the fitting formulas of tension, speed, and frequency of yarn axial motion were derived. By measuring the natural frequency of yarn, the yarn tension could be calculated conveniently and quickly. A high-speed camera was used to measure the transverse vibration displacement of yarn and detect the free vibration frequency of yarn. Through experiments, the results of tension sensor and yarn tension detection based on vibration frequency were compared, and the results show that the error was within 5%, which verifies the effectiveness and accuracy of this method.
INTRODUCTION TO THE SPECIAL ISSUE
Authors: Ben‐Meir Alon
Published: October 2022

This article introduces the World Affairs2022 special issue which contains ten contributions, including this one, debating the proposal for an Israeli‐Palestinian‐Jordanian confederation published in this journal earlier this year. In the present article, I continue and expand some of the arguments in the previous proposal. The notion that the time is not ripe to bring an end to the Israeli‐Palestinian conflict is misguided and extremely dangerous. When and how a more conducive environment will be created to restart peace negotiations remains elusive. Even a cursory review of the daily encounters between Israelis and Palestinians in the occupied territories and Gaza point to the intensity of hatred, enmity, and utter contempt they feel toward one another, which if continued unabated will be a recipe for an unprecedented violent conflagration. To avert the inevitable, every concerned individual must do everything humanly possible to help in creating new psychological, political, and physical conditions that would facilitate a dialogue and engender a new momentum to start a process of reconciliation before it is too late. This should eventually lead to the establishment of an independent Palestinian state under the umbrella of an Israeli‐Palestinian‐Jordanian confederation, where all three countries maintain their independence and can grow and prosper together and live in mutual security and peace.
The protective effects of perceived gratitude and expressed gratitude for relationship quality among African American couples
Authors: Barton Allen W , Jenkins August Ida Christine , Gong Qiujie , Sutton Naya C , Beach Steven RH
Published: October 2022

The current study was designed to investigate the protective effects of gratitude in romantic relationships. Particular attention was given to differentiating the beneficial effects of perceived gratitude (i.e., gratitude from one’s partner, or feeling appreciated) versus expressed gratitude (i.e., gratitude to one’s partner, or being appreciative) in mitigating the negative effects of ineffective arguing and financial strain on multiple indicators of relationship quality, both concurrently and longitudinally. The sample comprised 316 African American couples with three waves of data spanning approximately 16 months. Results indicated higher levels of perceived gratitude – but not expressed gratitude – weakened the association between relationship stressors and worsened outcomes (i.e., less satisfaction and confidence, more instability) at both between-person and within-person levels. Concurrently, perceived gratitude exhibited protective effects with respect to ineffective arguing and financial strain; longitudinal protective effects were observed only with respect to ineffective arguing. Results highlight the ways in which perceiving gratitude from one’s partner, both at a single instance and sustained over many months, can be protective for multiple facets of relationship quality. Collectively, findings underscore the importance of interpersonal gratitude for romantic relationships and its merit for increased attention in research and practice.
Floppy foreskins, misogynoir and why Black women cannot give up on swiping
Authors: Carter Jane E. M.
Published: October 2022

It saddens me to admit that I feel safest on an app where men are simply not allowed to contact me until I express an interest in them. A quick review of online discussion platforms would suggest that many in society have just decided that men cannot be trusted with the first move. I get it, frankly, but it isn’t what I hope for. In this piece I argue that Black women who desire connection and community cannot afford to stop dating online. With personal narrative and a review of the literature, this paper takes an autoethnographic approach to online dating as a Black woman. I show that the risks of social isolation and mental health concerns leave women of color, particularly Black single women in a vulnerable position. Research is suggesting that people are meeting less new people IRL (in real life), and that this is especially true for romantic connections. Given the hostility of the online dating environment, I consider the role of courtesy, consciousness and awareness of virtual space as community for the Black woman. The paper requests that claims of anti-racism be replaced with demonstrations of this in dating practices, and I present suggested strategies for holding space in the current environment.
Conductive, self-healing, and antibacterial Ag/MXene-PVA hydrogel as wearable skin-like sensors
Authors: Li Lumin , Ji Xiaofeng , Chen Kai
Published: October 2022

The rapid development of flexible electronic technology has led to the in-depth study of flexible wearable sensors to achieve accurate sensing under different external stimuli. However, it is still a huge challenge to develop hydrogel-based wearable skin-like sensors with super ductility, high sensitivity, and self-healing properties. Herein, the Ti3C2 type of MXene was synthesized, and the Ag/MXene nanocomplexes were incorporated into polyvinyl alcohol-borax matrix to construct a novel composite hydrogel as the multifunctional nanofillers, which could bring both improved properties and novel functionalities. The Ag/MXene-Poly (vinyl alcohol) (PVA) hydrogel displayed integrated merits of highly strain sensitive (GF = 3.26), self-healing (within 10 min, 91% healing efficiency), and excellent antibacterial activity. The hydrogel could be assembled into a wearable skin-like sensor to monitor human movement, including large deformations (finger, elbow, wrist, and knee bending) and tiny deformations (mouth’s movement and throat vocalization) in real time. Therefore, this work shed a new light on the development of flexible wearable skin-like sensors for the personalized healthcare monitoring, human–machine interfaces, and artificial intelligence.
Surgical Performance of En Bloc Total Capsulectomy Breast Implant Removal With Uninterrupted Breastfeeding
Authors: Anastasio Collins Rachael , Lima Hope K.
Published: October 2022

Introduction

A 28-year-old woman was able to maintain lactation for her 21-month-old child through the process of an En Bloc Total Capsulectomy Breast Implant Removal. This case study is important as it exemplifies collaborative care to achieve maintenance of lactation through a surgical procedure.

Main Issue

The participant was providing human milk to her 21-month-old child 4 times per day through breastfeeding and pumping and bottle feeding, and desired to continue lactation through explant surgery. The participant was experiencing Breast Implant Illness, yellowing of the skin and whites of the eyes, bottoming out of the right implant, severe capsular contracture of the right implant causing constant pain, limited mobility of the right arm and shoulder, and concern about an active recall on the brand implant she received.

Management

The lactation management began 3 weeks prior to the procedure with the participant expressing enough milk prior to the surgery to allow for human milk feeding from a bottle during the 7-day recovery period as desired. The surgical team and IBCLC selected an appropriate bra for recovery to allow for both appropriate surgical site healing and ease of access for pumping. Exclusive pumping was utilized until surgical drains were removed, after which the participant was able to reintroduce breastfeeding.

Conclusion

En Bloc Total Capsulectomy Breast Implant Removal can be performed while an individual is lactating without complication, given the appropriate multidisciplinary support. A temporary reduction of ease and efficiency of milk removal is possible post-operatively, in this case resolving within 24 hr.
Effect of high pulling speeds on the morphologies of pultrudates in a thermoplastic pultrusion process
Authors: Alsinani Nawaf , Laberge Lebel Louis
Published: October 2022

During thermoplastic pultrusion, increasing the pulling speed generally leads to a melted polymer pressure rise in the pultrusion dies. Yet, it was not clear if the polymer pressure’s increase would result in a faster impregnation flow that would compensate for the lower residency time inside the heating dies. Thus, the aim of this study was to verify if the speed-induced pressure can counterbalance the decrease in residency time that is required for impregnation quality and to analyze possible pultrudate morphology’s reconfiguration. Three distant pulling speeds were selected: namely 50, 500 and 1000 mm/min. Using a model, the polymer pressure in the pultrusion dies was computed to reach up to 1.0, 10.42, and 20.6 MPa for the respective pultrusion pulling speed. The morphology’s characterization showed a reconfiguration of the pultrudate at a higher pulling speed leading to larger unimpregnated agglomerations and polymer rich areas. The highest tensile strength achieved was 233.4 ± 1.5 MPa at 50 mm/min and dropped by around 20% when the pulling speed was raised to 1000 mm/min. The pultrudate reconfiguration at higher speed, attributed to delayed melting of PP fibers in underfilled dies, is deemed responsible for the loss in impregnation and mechanical properties.
Role of Family Acculturation Stress in Career Development Among Adolescents From Multicultural Families in Korea
Authors: Jo Duckhyun , Woo Sungbum , Yang Eunjoo
Published: October 2022

Career indecision is a substantial challenge for multicultural adolescents in South Korea. This study investigated the role of acculturation stress in adolescents and their parents in multicultural families on career decisions in South Korea. Perceived career barriers by adolescents and career-related behaviors of their parents were included as mediators. Using national panel data from 1695 cases longitudinally collected over the 3 years, the mediation analysis was conducted. The results showed that acculturation stress experienced by both adolescents and parents negatively predicted the adolescents’ career decisions. In addition, a sequential mediation effect of parental career-related behaviors and adolescents’ career barriers was found in the relationship between parental acculturation stress and adolescents’ career decisions. These results highlight the importance of acculturative stress experienced by families, and not just by individuals, in understanding the career development of multicultural adolescents. The implications of this study’s findings are discussed.
Disguising ‘Taking Money Out of a Firm’: Disconnection and Detrimental Consequences for Workers
Authors: Clark Ian
Published: October 2022

‘Disconnected capitalism’ is a thesis defined and developed in Work, Employment and Society. This article contributes to the sociology of work by further developing the thesis both theoretically and empirically. The article does so by specifying how accounting practices enable investor-owner managers to take money out of firms with detrimental consequences for workers. Empirically, this development of the thesis is based on four case studies where the theoretical and empirical contributions add to the thesis by highlighting a contemporary dialectic in light-touch regulation that is illustrated by these studies. The article is important because the further development of the thesis provides an analytical device that illustrates how investor-owner managers take advantage of moral hazard provisions in light-touch regulation enacted by the state to deliberately exploit and strategize these provisions through management accounting strategies.
Associations of RPEL1 and miR-1307 gene polymorphisms with disease susceptibility, glucocorticoid efficacy, anxiety, depression, and health-related quality of life in Chinese systemic lupus erythematosus patients
Authors: Yan Zi-Ye , Hu Wan-Qin , Zong Qi-Qun , Yu Guang-Hui , Zhai Chun-Xia , Wang Lin-Lin , Wang Yu-Hua , Zhang Ting-Yu , Li Zhen , Teng Ying , Cai Jing , Chen Yang-Fan , Li Mu , Xu Zhou-Zhou , Pan Fa-Ming , Pan Hai-Feng , Su Hong , Zou Yan-Feng
Published: October 2022

Objective

Our present study intended to examine the associations of RPEL1 and miR-1307 gene polymorphisms (rs4917385 and rs7911488) with susceptibility, glucocorticoids (GCs) efficacy, anxiety, depression, and health-related quality of life (HRQoL) in Chinese systemic lupus erythematosus (SLE) patients.

Methods

Initially, 1000 participants (500 SLE cases and 500 controls) were recruited for the case–control study. Then, 429 cases who received GCs were followed through 12 weeks to explore GCs efficacy, depression, anxiety, and HRQoL. We selected the iMLDR technique for genotyping: RPEL1: rs4917385 (G/T) and miR-1307: rs7911488 (A/G).

Results

The minor G allele of rs7911488 reduced the risk of SLE ( p = .024). Four haplotypes consisting of rs4917385 and rs7911488 were associated with SLE susceptibility ( p < .025). Both rs4917385 and rs7911488 were associated with anxiety symptoms and physical function (PF) in SLE patients ( p < .025). The rs4917385 was associated with depression and its improvement. No statistical significance was found between RPEL1 and miR-1307 gene polymorphisms with GCs efficacy. Meanwhile, additive interaction analysis showed a significant association between RPEL1 and miR-1307 gene polymorphisms with tea consumption in anxiety.

Conclusion

RPEL1 and miR-1307 gene polymorphisms (rs4917385 and rs7911488) might be related to SLE susceptibility in Chinese population. Additionally, the two polymorphisms were possibly associated with depression, anxiety, and HRQoL in Chinese SLE population.
Can American Orthopaedic Foot and Ankle Society (AOFAS) score prevent unnecessary MRI in isolated ankle ligament injuries?
Authors: Kandemir Veysel , Akar Mehmet Sait , Yiğit Şeyhmus , Durgut Fatih , Atiç Ramazan , Özkul Emin
Published: October 2022

Introduction and Objective

Ankle injuries are the most common musculoskeletal injuries. Its incidence is also high among sports injuries. Direct X-ray, ultrasound and MRI can be requested after the history and physical examination in the patient who presents with ankle ligament injury. Some classifications are used for requesting direct X-ray after ankle injury. Since clear limits are not specified in the literature for MRI, the rate of unnecessary MRI examinations is high. We argue that the decision can be made according to the AOFAS score to be checked before MR is requested, and thus unnecessary MR requests can be reduced.

Material and Method

Ankle MRI images of patients who underwent ankle MRI due to ankle trauma between January 2018 and December 2020 were scanned. 328 patients who met the criteria were included in the study. Patients with AOFAS scores in their outpatient clinic records were identified. AOFAS scores of patients with at least one ligament injury and those with normal MR images were statistically compared. Sensitivity and specificity were determined for the AOFAS score using ROC analysis.

Results

Patients with ligament damage as a result of MRI examination were 21.3% (n=70), and patients without any ligament damage were 78.7% (n=258). There was a statistically significant difference in terms of AOFAS between the group with ligament damage and the group without ligament damage (p< 0.05). In the ROC analysis, the AOFAS threshold value for MR request was determined as 80.5 (84.3% sensitivity and 72.3% specificity). Based on the determined threshold value, 73 patients who had unnecessary MRI would have been eliminated, thus reducing the number of MRIs by 42.6%.

Conclusion

The AOFAS scores of patients with ligament damage were statistically significantly lower than those of patients without ligament pathology. Unnecessary MRI can be significantly prevented by using the AOFAS score in ankle traumas without bone fractures.
Iraqi Muslim Women and Primary Healthcare Providers’ Perspectives and Experiences in the Clinic Visit in the Western United States
Authors: Penney Debra
Published: October 2022

Immigrants to the U.S. are subject to healthcare disparities due to differences in language, culture, religion, and gender. Clinic visits are particularly challenging for both health providers and patients due to communication barriers, expectations of the visit that are informed by past experiences, strongly held values, and gender. This qualitative study used critical ethnography and postcolonial feminism to explore perceptions and experiences of 15 Iraqi Muslim women with refugee backgrounds and 10 primary healthcare providers as they shared about their clinical encounters. Semi-structured interviews and field notes were analyzed with a postcolonial feminist framework that highlighted perspectives of health providers and Iraqi Muslim women in regard to representation, gender, and values. Health providers were aware of the need for gender-concordant care and preservation of modesty for Muslim patients. Gaps in care stemmed from a need for greater understanding of values and expectations. Improvement in the quality of care requires a venue for open discourse between providers, staff, and patients to improve mutual understanding.
Does a Positive Methicillin-Resistant Staphylococcus aureus (MRSA) Nasal Screen Predict the Risk for MRSA Skin and Soft Tissue Infection?
Authors: Hitchcock Allison M. , Seabury Robert W. , Kufel Wesley D. , Farooqi Sara , Steele Jeffrey M. , Darko William , Miller Christopher D. , Feldman Elizabeth A.
Published: October 2022

Background:

Skin and soft tissue infections (SSTIs) are often caused by gram-positive bacteria that colonize the skin. Given the overuse of antibiotics, SSTIs are increasingly caused by resistant bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). Guidance on the utility of MRSA nasal screening for MRSA SSTI is limited.

Objective:

To determine whether MRSA nasal screening predicts the risk of MRSA SSTIs.

Methods:

This was a single-center, retrospective cohort study of adult patients with an SSTI diagnosis that had MRSA nasal screening and wound cultures obtained within 48 hours of starting antibiotics. Sensitivity, specificity, positive and negative predictive value, and positive and negative likelihood ratios were calculated using VassarStats. Pretest and posttest probabilities were estimated with Microsoft Excel.

Results:

A total of 884 patient encounters were reviewed between December 1, 2018, and October 31, 2021, and 300 patient encounters were included. The prevalence of MRSA SSTI was 18.3%. The MRSA nasal colonization had a sensitivity of 63.6%, specificity of 93.9%, positive predictive value of 70.0% (95% CI = 55.2%-81.7%), negative predictive value of 92.0% (95% CI = 87.7%-94.9%), positive likelihood ratio of 10.39 (95% CI = 6.12-17.65), negative likelihood ratio of 0.39 (95% CI = 0.27-0.55), positive posttest probability of 70.0%, and negative posttest probability of 8.0%.

Conclusions:

Given the high positive likelihood ratio, a positive MRSA nasal screen was associated with a large increase in the probability of MRSA SSTI at our institution, and a negative MRSA nasal screen was associated with a small but potentially significant decrease in the probability of MRSA SSTI.