bluuebunny/crossref_metadata_2025 huggingface dataset:
Machine Learning-Based Technique for the Severity Classification of Sublingual Varices according to Traditional Chinese Medicine
Authors: Lu Ping-Hsun , Chiang Chih-Chi , Yu Wei-Hsuan , Yu Min-Chien , Hwang Feng-Nan
Published: November 2022

Tongue diagnosis, a noninvasive examination, is an essential step for syndrome differentiation and treatment in traditional Chinese medicine (TCM). Sublingual vein (SV) is examined to determine the presence of blood stasis and blood stasis syndrome. Many studies have shown that the degree of SV stasis positively correlates with disease severity. However, the diagnoses of SV examination are often subjective because they are influenced by factors such as physicians’ experience and color perception, resulting in different interpretations. Therefore, objective and scientific diagnostic approaches are required to determine the severity of sublingual varices. This study aims at developing a computer-assisted system based on machine learning (ML) techniques for diagnosing the severity of sublingual varicose veins. We conducted a comparative study of the performance of several supervised ML models, including the support vendor machine, K-neighbor, decision tree, linear regression, and Ridge classifier and their variants. The main task was to differentiate sublingual varices into mild and severe by using images of patients’ SVs. To improve diagnostic accuracy and to accelerate the training process, we proposed using two model reduction techniques, namely, the principal component analysis in conjunction with the slice inverse regression and the convolution neural network (CNN), to extract valuable features during the preprocessing of data. Our results showed that these two extraction methods can reduce the training time for the ML methods, and the Ridge-CNN method can achieve an accuracy rate as high as 87.5%, which is similar to that of experienced TCM physicians. This computer-aided tool can be used for reference clinical diagnosis. Furthermore, it can be employed by junior physicians to learn and to use in clinical settings.
Lymphocyte Transformation Test Based on Lymphocyte Changes Observed by a Hematology Analyzer before and after Phytohemagglutinin Stimulation
Authors: Zhang Lulu , Feng Tinghua , Liu Hui
Published: November 2022

Objective. The lymphocyte transformation test is a classical test for the detection of cellular immune function and is based on subjective judgment. In this study, we have established an objective novel lymphocyte transformation test using the hematology analyzer to observe lymphocyte transformation. Methods. Whole blood cells were cultured using a whole blood method with a lymphocyte culture medium; phytohemagglutinin was used to stimulate the experimental samples, and control was set up at the same time. After the whole blood cells were cultured, the number of lymphocytes in the two groups was observed using a hematology analyzer, and the conversion rate was calculated. The new method was used to observe differences in lymphocyte conversion in the peripheral blood of patients with hematopathy and healthy persons. Results. There were significant differences between the stimulated peripheral blood group and the blank group. The transformation rate of peripheral blood lymphocytes in patients with hematopathy was significantly lower than that in healthy persons; the difference was statistically significant (

P
<
0.05

). Conclusion. Lymphocyte transformation can be observed using a hematology analyzer. The lymphocyte transformation test that is based on the determination of lymphocyte count by a hematology analyzer has important clinical value.
TRIM44 Promotes Endometrial Carcinoma Progression by Activating the FRS2 Signalling Pathway
Authors: Song Yurong , Zhou Guiju , Song Enxue , Zhan Lei , Wang Qingyuan , Song Hui , Xia Jingxian , Cong Lin
Published: November 2022

The Tripartite Motif Containing 44 (TRIM44) is highly expressed in a variety of tumours. However, the TRIM44’s role in endometrial carcinoma (EC) progression remains unknown. To investigate the TRIM44’s role in the development and metastasis of EC, we detected TRIM44 expression in EC cell lines and surgical specimens from patients with EC using immunohistochemistry, real-time reverse transcription-polymerase chain reaction, and western blotting analysis. The biological functions of TRIM44 by loss-of-function analysis in RL95-2 and Ishikawa cells were studied. The effect of TRIM44 on the progression of EC in terms of cell proliferation, apoptosis, and invasion was examined and revealed its underlying mechanism in vitro using EC cell lines and in vivo using mouse xenograft models. The TRIM44’s expression was positively correlated with EC progression and poor prognosis. The TRIM44 knockdown reduced the EC cell proliferation and invasion while promoting cell apoptosis. Mechanism experiments showed that the TRIM44 interacts with Fibroblast Growth Factor Receptor Substrate 2 (FRS2) and negatively regulates the expression of Bone Morphogenetic Protein 4(BMP4), β-catenin, and Transforming Growth Factor Beta Receptor 1(TGF-βR1). Moreover, the effect of TRIM44 overexpression on EC cell proliferation, invasion, and apoptosis is reversed by the FRS2 knockdown. Our study may provide a new perspective on targeting the TRIM44/FRS2 signaling pathway in treating EC, which deserves further investigation.
Combined Prediction Method of Short-Term Distance Headway Based on EB-GRA-TCN
Authors: Wang Chun , Zhang Weihua , Wu Cong , Hu Heng , Zhu Wenjia
Published: November 2022

As an essential parameter to represent vehicle following characteristics, distance headway (DHW) plays an essential role in microtraffic flow simulation, traffic control, and traffic safety alarm. However, due to the randomness, nonlinearity, and correlation of DHW data, constructing DHW prediction models is difficult. Moreover, few studies have considered the time correlation between the historical DHW and the target DHW. To solve the above problems, a DHW prediction model is proposed in this paper by integrating entropy-based grey relation analysis (EB-GRA) and temporal convolutional network (TCN), named as EB-GRA-TCN model. In the model, the EB-GRA is adopted to calculate the correlation between the target DHW and historical DHW sequences, and the DHW data with high correlation are dynamically selected as the optimal input of the DHW prediction model. Then, the TCN algorithm is used to train the DHW prediction model. The TCN architecture integrates the advantages of recurrent neural network (RNN) and convolutional neural network (CNN), which could fully use the previous DHW information. In the experiment, the DHW data from Hefei Expressway are utilized for training the EB-GRA-TCN model. The prediction results showed that the average root mean square error (RMSE) and mean absolute error (MAE) of the proposed model were 0.115 and 0.090, respectively, in the 5, 10, and 15 predicted steps. Compared with the autoregressive integrated moving average (ARIMA), TCN, RNN, and long short-term memory (LSTM) models, the EB-GRA-TCN model achieved the best prediction accuracy. The results indicated that the EB-GRA-TCN model obtained good predictive performance and could provide support for road traffic control and traffic safety warming.
Study on the Migration Law of Overlying Rock in the Upward Layered Continuous Mining Face of Thick Coal Seam with Paste Backfill Mining
Authors: Wen Xinglin , Ge Zhengchen , Zhang Fuyu
Published: November 2022

With the massive mining of coal resources, coal mining under special conditions such as “Coal mining under buildings and railways and water-bodies” thick coal seams has became a key concern for relevant scholars. As a mining method to effectively replace “Coal mining under buildings and railroads and water-bodies” thick coal seams, paste backfilling is an important part of the coal green mining system. In this paper, by combining theoretical analysis, numerical simulation, and other means, the migration law of overlying rock in paste backfill mining of continuous mining face in thick coal seam upwards under the village was studied. FLAC3D numerical simulation software is used to analyze the upward separation of thick coal seams. Surface subsidence was simulated at each stage of paste backfill mining in the continuous mining face, and the influence of the backfill elastic modulus on the overburden subsidence, the backfill and coal stress, the range of the overlying plastic zone, and the surface deformation was simulated and analyzed. The elastic modulus of the filling body was finally determined.
Design of an Adaptive Control to Feed Hydrogen-Enriched Ethanol-Gasoline Blend to an Internal Combustion Engine
Authors: García-Morales J. , Escobar-Jiménez R. F. , Ramos-Negrón O. J. , Carbot-Rojas D. A. , Cervantes-Bobadilla M. , Gómez-Aguilar J. F.
Published: November 2022

In this work, an internal combustion (IC) engine air-fuel ratio (AFR) control system is presented and evaluated by simulation. The control scheme aims to regulate the overall air-fuel ratio (AFRoverall) in an IC engine fueled with a hydrogen-enriched ethanol-gasoline blend (E10) as fast as possible. The control scheme designed and developed in this work considers two control laws, a feedback control law to regulate the hydrogen and adaptive nonlinear control law for controlling the E10 mass flow injection. The main contribution of this work is the reduction of the number of controllers used for controlling the overall air-fuel ratio since other control strategies use two controllers for controlling the E10 mass flow injection. Simulation results have shown the effectiveness of the new control scheme.
Dynamics of Acute Postsurgical Pain over the Last Decade: A Bibliometric Analysis
Authors: Tan Zhimin , Dong Yanjie , Li Qian
Published: November 2022

Objective. Minimizing acute postsurgical pain (APSP) remains a challenge, despite extensive research about it. This study comprehensively analyzed the literature on APSP to assess how the field has developed and where it may go in the future. Methods. Studies on APSP indexed in the Web of Science Core Collection and published from 2012 to 2021 were assessed for eligibility. Data from included studies were analyzed using CiteSpace, Python, and Microsoft. Results. Analysis of 5,236 publications on APSP showed that the number of articles per year has increased linearly. The United States leads other countries in terms of the number and centrality of publications. Cocitation analysis suggests that the field focused earlier on the incidence and risk factors of APSP, shifting later to a focus on the reduction and management of adverse outcomes due to APSP. The top-ranked keyword cluster during the study period was “short-term outcomes” (#0), followed by “risk factors” (#1). The strongest burst occurred for the keyword “combination,” followed by “multimodal analgesia.” The most recent burst occurred for the keywords “regional analgesia,” “opioid use,” “erector spinae plane block,” and “infiltration.” Conclusions. Hotspots in APSP research since 2012 have been incidence, risk factors, and control of negative outcomes. Future research is likely to concentrate on the use of opioids and technological innovations in regional anesthesia. Our findings may help APSP researchers and clinicians understand their field, optimize clinical practice, and plan future research.
Optimization of Convective Tray-Drying Process Parameters for Green Banana Slices Using Response Surface Methodology and Its Characterization
Authors: Kamble Meenatai , Singh Anurag , Singh Sukh Veer , Chinchkar Ajay , Pareek Sunil
Published: November 2022

Green banana (Musa spp.) is a significant source of starch (resistant starch ∼50%), phenolics and flavonoid compounds, and minerals (K, Mg, Zn, and Fe). The utilization of green bananas in their fresh form is limited, whereas the drying of bananas provides the opportunity to use them for various purposes. Drying temperature and slice thickness are important to be optimized for drying of bananas as they affect the quality parameters. The present study was conducted using response surface methodology to optimize tray-drying temperatures (50–80°C) and slice thicknesses (2–8 mm) on the basis of phytochemical and physical parameters of dried green banana slices. The cubic model was found to be the best fit for most of the responses (R2 = 0.95–1), and the quadratic model was fit for water activity (

a

w

) (R2 = 0.92). The optimized drying conditions were found as drying temperature of 50°C and slice thickness of 4.5 mm. Experimental responses exhibited maximum L

∗

(84.06), C

∗

(13.73), and ho(83.53) and minimum losses of total phenolic content (89.22 mg GAE/100 g) and total flavonoid content (3.10 mg QE/100 g) along with lower

a

w

(0.25). The optimized green banana flour was rich in carbohydrates (77.25 ± 0.06%) and low in fat (1.79 ± 0.11%). The flour obtained had good flowability with a mean particle size of 60.75 ± 1.99 µm. Flour’s gelatinization and decomposition temperatures were 102.7 and 292°C, respectively. In addition, flour’s water absorption, oil absorption, and solubility were 5.19 ± 0.01, 1.58 ± 0.01, and 0.14 ± 0.02 g/g, respectively. Green bananas dried at optimized conditions resulted in a better product with less phytochemical loss than dried with other methods.
The Influence of Intervertebral Disc Microenvironment on the Biological Behavior of Engrafted Mesenchymal Stem Cells
Authors: Zhang Jing , Zhang Wentao , Sun Tianze , Wang Jinzuo , Li Ying , Liu Jing , Li Zhonghai
Published: November 2022

Intervertebral disc degeneration is the main cause of low back pain. Traditional treatment methods cannot repair degenerated intervertebral disc tissue. The emergence of stem cell therapy makes it possible to regenerate and repair degenerated intervertebral disc tissue. At present, mesenchymal stem cells are the most studied, and different types of mesenchymal stem cells have their own characteristics. However, due to the harsh and complex internal microenvironment of the intervertebral disc, it will affect the biological behaviors of the implanted mesenchymal stem cells, such as viability, proliferation, migration, and chondrogenic differentiation, thereby affecting the therapeutic effect. This review is aimed at summarizing the influence of each intervertebral disc microenvironmental factor on the biological behavior of mesenchymal stem cells, so as to provide new ideas for using tissue engineering technology to assist stem cells to overcome the influence of the microenvironment in the future.
Power Control of Wind Energy Conversion System with Doubly Fed Induction Generator
Authors: Kebede Mekdes Gemechu , Tuka Milkias Berhanu
Published: November 2022

Wind power is one of the most efficient, reliable, and affordable renewable energy sources. The Doubly Fed Induction Generator (DFIG) is the most commonly used machine in wind power systems due to its small size power converter, reduced cost and losses, better quality, and the ability for independent power control. This research work deals with the power control of this machine by modeling and designing a suitable controller. Vector control is used to control the stator and grid active and reactive powers along with the proportional integral (PI) controller, fuzzy logic controller (FLC), and PI-fuzzy controllers. Modeling and simulation of the system are done using MATLAB Simulink, and the behavior of the machine with each controller is examined under variable wind speeds. Comparative analysis based on reference power tracking, stability, and grid code requirement fulfillment has been conducted. The obtained results show that among the three controllers, the PI-fuzzy controller meets the required specification with better performance, small oscillation, minimum overshoot, better reference tracking ability, and creating a stable and secure system by fulfilling grid code requirements. This study can be important to further insight into DFIG-based wind turbine systems.
Role of Hydrothermal Circulation along and above Inherited Basement Structures Relating to Unconformity-Related Uranium Mineralization
Authors: Poh Jonathan , Eldursi Khalifa , Ledru Patrick , Yamato Philippe , Chi Guoxiang , Benedicto Antonio
Published: November 2022

The reactivation of inherited tectonic structures formed during the Paleoproterozoic Trans-Hudson Orogeny (THO) has played a significant role in generating high-grade unconformity-related uranium deposits in the eastern Athabasca Basin. The role of these tectonic structures is now investigated through a series of two-dimensional hydrothermal numerical models. Two modelling scenarios are considered: (1) models during the THO peak of metamorphism and (2) models with a permeable layer mimicking the presence of the Athabasca Basin, deposited unconformably over the THO basement. In the first scenario, general fluid patterns are strongly affected by the applied permeability configurations. Unidirectional high fluid flow zones (from 10-9 to 10-8 m·s-1) and high thermal gradients (up to 65°C·km-1) can be observed above and within the deep-seated tectonic structures. In the second scenario, well-established fluid convection cells or unidirectional fluid flow zones are observed within the basin layer, with upflow originating from the core of the deep-seated structures, regardless of the applied fluid pressure regime. These results highlight that these deep-seated structures can efficiently transport fluids and heat towards the upper parts of the crust and the basin. In the second scenario, the loci for preore alteration are then evaluated by computing a rock alteration index based on temperature and fluid velocity constraints. These alteration areas reside along and above the deep-seated structures and are potential regions for structural reactivation during mineralization. These results imply that the analysis of the inherited tectonic structures, combined with the alteration regions, can serve as markers for uranium exploration.
Treatment Outcome of Endoscopic Ultrasound Radiofrequency Ablation for Incidentaloma Pancreatic Neuroendocrine Tumor in Young Female Patient: A 2-year Follow-Up
Authors: Lesmana Cosmas Rinaldi Adithya , Lirendra Mutiara , Inggriani Sri , Sudoyo Aru W. , Lesmana Laurentius
Published: November 2022

Pancreatic neuroendocrine tumors (PNETs) or islet cell tumors are neuroendocrine neoplasms that arise from cells of the endocrine and nervous system within the pancreas. Patients with PNET sometimes do not show any symptoms, known as nonfunctioning (NF) sporadic PNET. It is still debatable regarding the best approach in the NF for small PNET. Currently, the surgical approach is considered the best; however, it is a highly invasive procedure, and it has a potentially high risk of complications as it requires a skilled and experienced operator. Herewith, we reported a 48-year-old female with incidentaloma of nonfunctioning PNET (NF-PNET) whose tumor has been successfully treated with endoscopic ultrasound guided radiofrequency ablation (EUSRA). There was no adverse event observed during and after the EUS procedure, and even 1 week after the procedure. One year later, abdominal magnetic resonance imaging (MRI) examination was carried out and size of the tumor was significantly getting smaller where it could hardly be seen anymore. After 2 years of follow-up, the latest abdominal MRI study showed no solid part of the tumor could be seen anymore. In conclusion, EUSRA can be an alternative option for incidentaloma of NF-PNET management.
Trends in Adherence to Recommended Physical Activity and Its Association with Mortality and Disease Progression among US Adults with Chronic Kidney Disease
Authors: Qu Xiaolin , Tong Xin , Hou Xiaoxiang , Zhang Junhui , Hou Lijun , Chen Jigang
Published: November 2022

Introduction: This study aimed to examine the trends in adherence to the Physical Activity Guidelines (PAG) for aerobic activity and sedentary time and their effects on mortality and disease progression among US adults with chronic kidney disease (CKD). Methods: We studied individuals from the National Health and Nutrition Examination Survey 2007–08 to 2017–18 with a mortality file in 2015. Multivariate regression models were used to evaluate the association between adherence to PAG and sedentary time with mortality, estimated glomerular filtration rate (eGFR), and urine albumin-to-creatinine ratio. Results: For the CKD population, adherence rate increased from 48.2% in 2007–08 to 55.0% in 2017–18, and sedentary time peaked in 2013–14 (7.5 h/day) and then decreased afterward. There was no difference in the trends across the non-CKD and CKD population. For the CKD population, adherence to the PAG was significantly associated with all-cause mortality (HR, 0.49; 95% CI: 0.38–0.63), malignant neoplasm mortality (HR, 0.30; 95% CI: 0.17–0.52), and albumin-creatinine ratio (OR, −0.27; 95% CI: −0.39 to −0.15). Sedentary time was significantly associated with all-cause mortality (HR, 1.12; 95% CI: 1.08–1.15), heart disease mortality (HR, 1.13; 95% CI: 1.08–1.19), and eGFR (OR, −0.49; 95% CI: −0.72 to −0.26). Conclusions: Favorable trends were observed in adherence to the PAG and sedentary time. Adherence to the PAG and reduction in sedentary time reduced all-cause and cause-specific mortality and prevented disease progression differently. Efforts are needed to decrease sedentary time rather than adhering to the PAG for aerobic activity alone.
Gastroduodenal and Colorectal Tuberculosis: Report of 2 Cases
Authors: Alvizuri Claudia , Carlín Andrea , Aguilar Víctor , Valenzuela Vanessa
Published: November 2022

Introduction: Tuberculosis remains a public health concern in developing countries, as well as in developed countries as a result of immigration from endemic areas. Gastroduodenal and colorectal tuberculosis are rare manifestations of gastrointestinal infection. Case Presentation: We present 2 cases of gastric, duodenal, and colorectal tuberculosis. The first case, a 17-year-old male with no medical record, presented with chronic diarrhea and abdominal pain. At endoscopy, he had multiple ulcers in the stomach, colon, and rectum, which were positive to Mycobacterium tuberculosis. The second case was a 43-year-old HIV-positive male, with a history of intermittent fever, nausea, and vomiting. Upper gastrointestinal endoscopy revealed a deep ulcer on gastric fundus that tested positive to M. tuberculosis in the acid-fast bacilli staining. Discussion/Conclusion: Gastroduodenal and colorectal tuberculosis, although rare, should be considered in the differential diagnosis in both immunosuppressed and immunocompetent patients. An adequate tissue sample and appropriate diagnostic tests are essential for the diagnosis and prompt start of first-line antituberculosis agents.
Deep learning-based methods for anomaly detection in video surveillance: a review
Authors: Berroukham Abdelhafid , Housni Khalid , Lahraichi Mohammed , Boulfrifi Idir
Published: November 2022

Detecting anomalous events in videos is one of the most popular computer vision topics. It is considered a challenging task in video analysis due to its definition, which is subjective or context-dependent. Various approaches have been proposed to address the anomaly detection problems. These approaches vary from hand-crafted to deep learning. Many researchers have gone into determining the best approach for effectively detecting anomalies in video streams while maintaining a low false alarm rate. The results proved that approaches based on deep learning offer very interesting results in this field. In this paper, we review a family of video anomaly detection approaches based on deep learning techniques, which are compared in terms of their algorithms and models. Moreover, we have grouped state-of-the-art methods into different categories based on the approach adopted to differentiate between normal and abnormal events, and the underlying assumptions. Furthermore, we also present publicly available datasets and evaluation metrics used in existing works. Finally, we provide a comparison and discussion on the results of various approaches according to different datasets. This paper can be a good starting point for such researchers to understand this field and review existing work related to this topic.
Design of unknown input observer for discrete-time Takagi Sugeno implicit systems with unmeasurable premise variables
Authors: Essabre Mohamed , Hmaiddouch Ilham , El Assoudi Abdellatif , El Yaagoubi El Hassane
Published: November 2022

In this study, an unknown input observer (UIO) is developed in explicit form to estimate unmeasurable states and unknown inputs (UIs) for nonlinear implicit systems represented by the discrete-time Takagi-Sugeno implicit systems (DTSIS) in the case of unmeasurable premise variables. The method employed is based on singular value decomposition (SVD) and augmenting the state vector, which is formed partly by the system state and partly by the UIs. The convergence of the augmented state estimation error is provided by a Lyapunov function ending with solving the linear matrix inequalities (LMI). An application to a model of the rolling disc is considered to evaluate the effectiveness of the developed approach. It appears that estimated variables converge to the true variables quickly and accurately.
2D face recognition using PCA and triplet similarity embedding
Authors: Bazatbekov Bek , Turan Cemil , Kadyrov Shirali , Aitimov Askhat
Published: November 2022

The aim of this study is to propose a new robust face recognition algorithm by combining principal component analysis (PCA), Triplet Similarity Embedding based technique and Projection as a similarity metric at the different stages of the recognition processes. The main idea is to use PCA for feature extraction and dimensionality reduction, then train the triplet similarity embedding to accommodate changes in the facial poses, and finally use orthogonal projection as a similarity metric for classification. We use the open source ORL dataset to conduct the experiments to find the recognition rates of the proposed algorithm and compare them to the performance of one of the very well-known machine learning algorithms k-Nearest Neighbor classifier. Our experimental results show that the proposed model outperforms the kNN. Moreover, when the training set is smaller than the test set, the performance contribution of triplet similarity embedding during the learning phase becomes more visible compared to without it
Design and implementation of a driver circuit for three-phase induction motor based on STM32F103C8T6
Authors: Salih Nahla Abdul Jalil , Altaie Hayder Tareq Rajab , Al-Azzawi Waleed Khalid , Mnati Mohannad Jabbar
Published: November 2022

A three-phase induction motor is an electrical machine that can be used for many industrial applications. A three-phase driver circuit, also known as a three-wire series circuit or three-wire delta circuit is an electrical power system. These motors typically rely on power supplied using electric cables, which carry alternating currents. The three-phase motor inverter driver circuit is a simple circuit consisting of three half-wave rectifiers, which are connected in a bridge. When the input voltage level of the DC power supply to the inverter is high enough, this arrangement can provide a large current through the induction motor. This paper will show how to build a three-phase inverter driver circuit from scratch for a threephase induction motor by using (transistors and diodes) for photovoltaic application. The paper will guide people through each step with diagrams and schematics that make it easy for anyone to understand every part of this project and ensure people's safety by learning how these components work before putting them into their own design. The focus of this project will be on the use of STM32F103C8T6 as microcontrollers to generate the pulse width modulation (PWM) signals.
Synchronization control techniques for shunt active power filter: an overview
Authors: Ranga Rao Chegudi , Balamurugan Ramadoss , Alla RamaKoteswaraRao
Published: November 2022

The phase synchronization control technique of shunt active power filter (SAPF) is discussed in this article. Due to the harmful effects of harmonic currents on power systems, the issue of decreasing their effects has generated a lot of research. A SAPF is acknowledged as the most dependable instrument in this area. The SAPF will detects the current harmonics present in the power system and also generates and injects the corrective current mitigation in the power system to reduce the current harmonics. This implies that, aside from the capacity to create compensating current, it is more essential to ensure that the SAPF can work in phase with the operational power system so that the compensating current will properly injected. As a result, while constructing SAPF control algorithms, correct synchronisation techniques must be incorporated. In this article, the different types of phase synchronization approach have been discussed such as phase-locked loop (PLL), adaptive linear neuron (Adaline), and unit vector. The results of the study may be used as a guideline and source of information for determining the best method for synchronising SAPF with the associated power system.
Arabic vowels characterization and classification using the normalized energy in frequency bands
Authors: Farchi Mohamed , Tahiry Karim , Mouhsen Ahmed
Published: November 2022

The main objective of this work is to conduct an acoustic study of Arabic vowels (/a/, /a:/, /u/, /u:/, /i/ and /i:/) in order to determine the most relevant characteristics that allow recognizing these vowels. The analysis of vowel spectrograms reveals that the energy distribution as a function of time and frequency clearly differs according to the considered vowel. Thus, we used the normalized energy in frequency bands to classify these vowels. Thereafter, we have exploited the obtained results to develop algorithms that allow the classification of vowels and the distinction of the long vowels from the short ones. The efficiency of these algorithms was evaluated by testing their performances on our Arabic corpus.
Quantitative feedback theory based robust speed control of vector controlled induction motor
Authors: Krishnankutty Jisha Lakshmi , Thomas Arekkadan Antony Powly , Srivastava Suresh
Published: November 2022

In this research paper a method for the robust speed control of Indirect Field orient controlled induction motor (IM) is proposed. The quantitative feedback theory (QFT) in implemented to design the controller in order to achieve the desired performance for the closed loop system in the presence of uncertainties and parameter variations. In this research work the QFT based controller is designed for the simplified model of IM. The worst case of uncertainties and all possible parameter variations are taken into consideration. The IM with the controller developed is simulated using the MATLAB/Simulink and the results are analyzed and compared with the conventional proportional integral derivative (PID) controller. The time domain and frequency domain analysis of both controllers were conducted and compared. A study on the nature of electromagnetic torque and control signal is also included to justify the effectiveness of proposed controller. The simulation results verify the superior performance of the proposed robust control method compared to PID controller.
Annales fuera de Francia: la historia de las mentalidades y su inserción en el ámbito historiográfico mexicano
Authors: Islas Alfredo Ruiz
Published: November 2022

En la década de 1970, la historia de las mentalidades se convirtió en la forma más popular de construir relatos históricos alrededor del planeta. El modo de ver al pasado popularizado por la tercera generación de Annales —los sucesores de Braudel: Le Goff, Nora, Ariès— constituía una bocanada de aire fresco en un entorno dominado por el materialismo, el estructuralismo y el empirismo. Más allá de las críticas vertidas por numerosos profesionales de la historia —desde Braudel hasta Hobsbawm, pasando por Burke y Dosse—, que resaltaban sus carencias metodológicas o su falta de profundidad teórica, mirar al pasado alla maniera de mentalidades se extendió por el planeta con velocidad sorprendente. ¿Qué elementos influyeron en este fenómeno? ¿Cómo fue que se apropió, en distintos lugares, este modo de ver y hacer la historia? El presente artículo trata de dar respuesta a estas preguntas tomando como base para ello el caso de México, lugar en el que el intenso intercambio cultural con Francia cristalizó en el arribo de la historia de las mentalidades en el último tramo de la década de 1970 y dio origen al Seminario de Historia de las Mentalidades y Religión en el México Colonial
Projetos distintos: leituras sobre Edith Stein no Brasil no início do século XX
Authors: Ferreira Danilo Souza
Published: November 2022

Esse artigo tem como objetivo apresentar as leituras biográficas da religiosa e fenomenologa Edith Stein no Brasil, a partir de três eixos O primeiro aborda o livro de Ana Maria Nabuco sobre Edith Stein. O segundo discorre sobre o mercado editorial brasileiro no início do século XX. E o terceiro expõe o trabalho de tradutor de Manuel Bandeira, na peça Edith Stein na Câmara de Gás do religioso argentino Gabriel Cacho. Demonstrando assim como buscaremos descrever neste artigo, o primeiro momento da recepção biográfica de Edith Stein foi desenvolvido  por intelectuais não pertencentes a ordens religiosas oficiais, mas, sim, ao movimento católico leigo do Centro Dom Vital e do campo das artes em especial do teatro.
Geopolítica da Distopia: o sistema de dominação em 1984
Authors: Trevas Leonardo Lucena
Published: November 2022

O presente trabalho busca iluminar alguns aspectos do 1984 de Orwell que estão mais ligados à geopolítica e à história, traçando paralelismos com pessoas, países e processos que ocorreram após a Segunda Guerra Mundial. Também procura tratar do sistema de dominação presente na história fictícia do livro e nas potências daquele mundo: Oceânia, Lestásia e Eurásia. Para isso, o objeto deste estudo é o Capítulo IX da parte II de 1984.
Tudo a partir de um grão: o real totalitarismo de 1984
Authors: Durão Fabio Akcelrud , Tinti Tauan Fernandes
Published: November 2022

Este ensaio parte da premissa de que faz parte da lógica de envelhecimento dos objetos culturais que o modo como eles são lidos ao longo do tempo se sedimente de forma a afetar suas possibilidades de sentido, o que faz com que essas camadas precisem ser enfrentadas por tentativas subsequentes de interpretação. Sendo assim, nossa hipótese é a de que a tendência de leitura prospectiva de 1984 simplifica a relação entre ficção e realidade histórica – simplificação essa que vem a calhar para um objeto de alta circulação cultural, funcionando tanto como causa possível quanto como consequência relativamente inevitável. Desse modo, nossa proposta aqui é a de sugerir uma inversão nos termos usuais do debate ao redor do romance mais famoso de George Orwell, passando por três níveis relacionados entre si. O primeiro diria respeito à substituição do impulso prospectivo pela visada retrospectiva, rumo à historicidade das formas por meio de uma análise do comportamento do discurso indireto livre no romance. Por sua vez, o segundo nível privilegia a complicação em detrimento da simplificação, e de novo em termos formais: sendo inadequada a caracterização do estilo de Orwell nos moldes do discurso indireto livre de corte realista, entender o que surge em seu lugar é um dos propósitos deste ensaio. Por fim, o terceiro nível diz respeito ao problema da verossimilhança no romance, com aquilo que nele parece mais forçado se tornando interessante justamente por desafiar o bom senso dessas convenções realistas.
Entrevista Fido Nesti
Authors: Nesti Fido
Published: November 2022

O ilustrador Fido Nesti iniciou a sua carreira na década de 1980. Venceu, na categoria Melhor Adaptação, a edição de 2022 do Prêmio Eisner (considerado o Oscar dos quadrinhos), com o seu trabalho na adaptação da obra 1984 de George Orwell. A obra foi publicada no Brasil em 2019, pela Companhia das Letras.
Redescription of immature stages of Culicoides paraensis (Goeldi) (Diptera: Ceratopogonidae), vector of the Oropouche virus
Authors: AYALA MAHIA M. , DÍAZ FLORENTINA , SPINELLI GUSTAVO R. , MICIELI MARÍA V. , RONDEROS MARÍA M.
Published: November 2022

Oropouche fever is an emerging zoonotic disease caused by Oropouche virus (OROV). It has two distinct transmission cycles, with the anthropophilic biting midge Culicoides paraensis (Goeldi) (Diptera: Ceratopogonidae) being the primary vector in the urban cycle. Species identification of Culicoides typically has been carried out on the basis of morphological characters, but molecular tools applied to taxonomy can provide rapid and efficient methods to the identification of vector species. The aim of this work was to obtain the first DNA barcode for C. paraensis collected in Argentina and redescribe the larvae and pupae of this species. Nested PCR amplification was applied in this study to increase the DNA amplification, because the material was preserved in alcohol 70% for a long period of time. The immature stages of C. paraensis are fully described from material collected in Misiones province, Argentina. Both stages are compared with their most similar congeners. This COI sequence complements the identification based on morphological characters and the values of genetic distance between the analysed species show that this sequence is useful to discriminate between species of the Culicoides genus.
Leaf-mining moths of the genus Phyllonorycter Hübner
(Lepidoptera: Gracillariidae: Lithocolletinae) associated with Malvaceae in China, with descriptions of one new species
Authors: LU MING , LI WEI , LIU PENG , LIU TENGTENG
Published: November 2022

Until recently, only one species of Phyllonorycter Hübner, 1822 has been known to feed on Malvaceae in China, i. e. the lime leaf miner P. issikii (Kumata, 1963) associated with Tilia spp. Here we describe a new species, Phyllonorycter bilobae T. Liu sp. n., found in Shaanxi and Shandong provinces in China feeding on Grewia biloba var. biloba G. Don and G. biloba var. parviflora (Bunge) Hand.—Mazz. (Malvaceae). Images of the adult, male and female genitalia, host plant, and the leaf mines of the new species are provided. Additionally, detailed distribution data of P. issikii in Shandong province (China) is given.
Interannual and Seasonal Along-Shelf Current Variability and Dynamics: Seventeen Years of Observations from the Southern New England Inner Shelf
Authors: Lentz Steven J.
Published: November 2022

The characteristics and dynamics of depth-average along-shelf currents at monthly and longer time scales are examined using 17 years of observations from the Martha’s Vineyard Coastal Observatory on the southern New England inner shelf. Monthly averages of the depth-averaged along-shelf current are almost always westward, with the largest interannual variability in winter. There is a consistent annual cycle with westward currents of 5 cm s−1 in summer decreasing to 1–2 cm s−1 in winter. Both the annual cycle and interannual variability in the depth-average along-shelf current are predominantly driven by the along-shelf wind stress. In the absence of wind forcing, there is a westward flow of ∼5 cm s−1 throughout the year. At monthly time scales, the depth-average along-shelf momentum balance is primarily between the wind stress, surface gravity wave–enhanced bottom stress, and an opposing pressure gradient that sets up along the southern New England shelf in response to the wind. Surface gravity wave enhancement of bottom stress is substantial over the inner shelf and is essential to accurately estimating the bottom stress variation across the inner shelf.

Significance Statement

Seventeen years of observations from the Martha’s Vineyard Coastal Observatory on the inner continental shelf of southern New England reveal that the depth-average along-shelf current is almost always westward and stronger in summer than in winter. Both the annual cycle and variations around the annual cycle are primarily driven by the along-shelf wind stress. The wind stress is opposed by a pressure gradient that sets up along the southern New England shelf and a surface gravity wave–enhanced bottom stress. The surface gravity wave enhancement of bottom stress is substantial in less than 30 m of water and is essential in determining the variation of the along-shelf current across the inner shelf.
Feelings of Trust, Distrust and Risky Decision-Making in Political Office. An Experimental Study With National Politicians in Three Democracies
Authors: Weinberg James
Published: November 2022

Tackling an important gap in the literature on political trust, this article focuses on politicians and the relevance of their other-to-self trust judgements for decision-making in public office. A unique quantitative dataset gathered from national politicians in the UK, Canada and South Africa is used to (1) examine descriptive levels of felt trust and distrust among politicians and (2) evaluate the impact of these feelings on politicians’ risky decision-making. To achieve outcome (2), this article presents the results of three survey experiments in which politicians were asked to make decisions in scenarios where both the presentation and the nature of risk varied. The results indicate that MPs’ perceptions of public trust and distrust do matter for risky decision-making, and that these variables moderate a reflection effect whereby MPs are otherwise more risk-averse in the face of gains and risk-taking in the face of losses.
Preparation and transmission characteristics of high-pass woven fabrics
Authors: Yang Zhuli , Li Fengmiao , Huang Sirong , Guan Fuwang , Qiu Yiping
Published: November 2022

To study the frequency response characteristics of high-pass woven fabric, samples with varying conductive grid structure, structure parameters, material conductivity, and electromagnetic (EM) wave parameters were prepared and measured by the shielding room method. Experimental results showed that conductive grid structure was effective in obtaining bidirectional shielding ability and conductive stripe structure had directional shielding property to the EM wave.. Depending on changing the ratios of dielectric and conductive yarns, structure parameters exerted influences on frequency response characteristics by affecting vertical inductances and horizontal capacities in the equivalent circuit. High-pass woven fabric with high-conductivity yarns could possess stronger shielding ability. Due to the different compactness in weft and warp directions after weaving, bidirectional grid structure fabrics showed distinct polarization selective characteristic as well as unidirectional structure fabric. When the incident angle of the EM wave increased, the incident component decreased and the transmittance became unstable. The experimental results were discussed in-depthbased on mechanism analysis, which could provide reference to the relevant research.
HUMAN DEVELOPMENT AND GOVERNANCE IN AFRICA
Authors: Asongu Simplice A. , Diop Samba , Nnanna Joseph
Published: November 2022

This study examines the nexus between governance and human development in Africa. It uses data for the period 2010–2019 and takes into account the existence of spatial dependence and controls for the endogeneity problem through a Generalized Spatial Two Stage Least Squares (2SLS) technique. The exploratory spatial data analysis reveals the existence of spatial dependence on human development and governance quality. Our empirical findings support that in Africa, “good fences make good neighbors,” or proximity matters in the distribution of human development. Implications are discussed. This study complements the extant literature by using more updated data and employing an alternative and more robust estimation approach.
Visualizing the Ties That Bind Us: A Cross-Sectional Thematic and Visual Analysis of Cohesion Across Three British Military Formations
Authors: Schilling Stefan
Published: November 2022

Military unit cohesion has been associated with team performance, combat motivation, and positive mental health outcomes. Scholarship of military cohesion has been dominated by the Standard Model of Cohesion and the Task Cohesion Approach. Recent shifts in the character of conflict alongside a range of sociopolitical changes require these models to be reevaluated. This article aims to empirically compare these models using a deductive exploratory approach to assess their utility for present-day military formations. Seven construct variables were operationalized as deductive themes, coded against 26 focus groups with personnel from three military formations. Thematic analysis was supplemented by graph modeling, allowing to visualize interactions of constructs. Findings show that military formations develop cohesion in different ways. Teams low in occupational similarity emphasized leadership and shared experiences, while those with high levels emphasized professional competence. This novel approach provided a powerful tool to analyze, visualize, and model qualitative data about cohesion.
Compression therapy, autonomic nervous system, and heart rate variability: A narrative review and our preliminary personal experience
Authors: A Cavezzi , R Colucci , N Barsotti , G Di Ionna
Published: November 2022

Aims

To highlight the relationship among compression therapy (CT), the autonomic nervous system (ANS) (parasympathetic and sympathetic system), and the heart rate variability (HRV) analysis.

Background

Beyond the typical analgesic and anti-inflammatory effects of CT in patients affected by venous and/or lymphatic diseases, some literature about CT influence on wellbeing has been published as well. More specifically, CT influence on the ANS has been elucidated mostly through HRV application, providing useful quali-quantitative data for scientific and clinical purposes.

Material and Methods

A literature search was performed through several web-based search engines to investigate the available evidence concerning the possible influence of CT on the ANS and on psychoneuroendocrineimmunology. Moreover, we examined literature data regarding HRV use in the assessment of CT. Lastly, a preliminary cross-over study was performed on 10 patients affected by phlebolymphedema of the lower limbs, undergoing CT with 18–21 mmHg stockings for 10 h and investigated by means of HRV.

Results

A CT-based increase of the anti-inflammatory activity of the parasympathetic (vagal) system has been elucidated in most scientific literature. Similarly, CT application has generally resulted in an improvement of HRV, which indicates a beneficial influence on the ANS. In our preliminary experience with compression stockings and HRV, two parasympathetic-based parameters improved by 22.8% and 68.0% after 10 h, whereas they decreased in the same subjects without stockings by 2.7% and 8.2%, during normal breathing. The remaining HRV parameters did not show relevant variations, especially during diaphragmatic breathing.

Conclusions

From literature data and based on our very preliminary experience, it is possible to deduce that CT exerts different effects on the psychobiological parameters of the individual, overall improving HRV and parasympathetic activity. Incorporating both HRV/ANS assessment in phlebolymphology and the beneficial neural action of CT in health care may represent viable options in the future biomedical science.