bluuebunny/crossref_metadata_2025 huggingface dataset:
Errores y condiciones preanalíticas en la calidad del área de Medicina Transfusional
Authors: Condoy–Gaona María Isabel , Rodríguez-Quiroz Anderson Isaías , Lino-Villacreses William Antonio
Published: July 2023

El trabajo fue realizado por investigación bibliográfica tuvo como objetivo determinar los errores y condiciones preanalíticas en la calidad del área de medicina transfusional, mediante una revisión documental de publicaciones existentes. El tipo de investigación es descriptiva y para este trabajo se recopiló información de literatura publicada en bases de datos científicas reconocidas como Google Scholar, Redalyc, Scielo, Ebook Central, Scopus, Dspace. Incluye artículos científicos o libros publicados desde 2019 a la actualidad. En el proceso de medicina transfusional se observaron diversos procesos y sus condiciones basado en la calidad y su mejoramiento de está practica, en la fase preanalítica es la fuente de errores más comunes, lo que afecta la confiabilidad de los resultados y su aplicabilidad en la práctica clínica. Es por ello por lo que estas condiciones preanalíticas tienen que garantizan la calidad en el área de medicina transfusional. Se consideró que en la actualidad aún se observan estos errores en la zona preanalítica, algunas de las cuales fueron: tomas de muestras mal identificadas con etiquetas errónea, pacientes mal identificados, al momento de la toma de muestra existe errores en la colocación del torniquete, almacenamiento inadecuado de muestras, almacenamiento prolongado y uso de materiales de manejo y reacción inadecuados, por eso se consideran muestras no viables o contaminadas, si ocurre lo siguiente: muestra solidificada, hemólisis, volumen insuficiente, envases inadecuados y/o mal etiquetados definido como error preanalítico o cualquier defecto en el proceso analítico. La detección de errores es importante porque una muestra mal ejecutada dará resultado un resultado equivocado y es un factor importante por lo que debe volver a solicitarse, y esto nos lleva a que detectar errores detectar preanalíticos interfieren en la calidad del área de medicina transfusional.
Manifestations, Causes, and Governance of Data Monopoly in Chinese Internet Platforms
Authors: Huang Xinyue
Published: July 2023

Data has become a critical factor of production in China’s digital economy development. Internet platforms, in their pursuit of market dominance, engage in data monopolies that impede the healthy growth of the market economy. Data monopolies on internet platforms manifest in various forms, posing threats to other market entities and consumers’ rights. The formation of platform data monopolies can be attributed to the nature of data itself, as well as deficiencies in government and legal regulations. Although laws such as the Anti-Monopoly Law and the Price Law provide certain regulations and government oversight, the current provisions are disconnected from practical implementation, resulting in limited effectiveness in governing platform data monopolies. To eliminate adverse factors that hinder fair market competition and protect consumers’ legitimate rights, this paper argues for governance principles based on marketization and the rule of law. It suggests establishing clear governance rules for platform obligations and adopting a governance approach that combines corporate self-governance, government regulation, and social supervision.
Valor bajo PH de cordón umbilical y encefalopatía hipóxico isquémica en recién nacidos con riesgo de asfixia en el hospital nacional Dos de Mayo durante el periodo 2014 - 2018
Authors:   , Sánchez Arias Mayra Carolina
Published: July 2023

Objetivo: Determinar si el valor bajo de pH está asociado con la Encefalopatía Hipóxico Isquémica en recién nacidos con riesgo de asfixia en el Hospital Nacional Dos de Mayo durante el periodo 2014 –2018. Materiales y métodos: Se realizó una investigación analítica observacional, transversal y retrospectiva, de nivel correlacional, en 55 recién nacidos con riesgo de asfixia del Hospital Nacional Dos de Mayo, mediante la revisión de historias clínicas y una ficha de recolección de datos, la cual abarcó el valor del pH de los recién nacidos y el diagnóstico de Encefalopatía Hipóxico Isquémica según la Escala de Sarnat. Los datos recabados fueron ingresados a una hoja de cálculo del programa Microsoft Excel y luego trasladados a una base de datos del programa SPSS 25.0 para los análisis estadísticos correspondientes. Resultados: De total de recién nacidos con riesgo de asfixia, 20 tuvieron pH < 7 y 35 tuvieron pH ≥ 7. De los 20 recién nacidos con pH < 7, el 90% (18) presentaron Encefalopatía Hipóxico Isquémica mientras que el 20% (7) no presentaron. Asimismo, de los 35 recién nacidos con pH ≥ 7, el 10% (2) si presentaron Encefalopatía y un 80% (28) no presentaron. Por lo que existe evidencia estadística significativa para decir que el valor bajo de pH está asociado a la Encefalopatía Hipóxico Isquémica (p=0.001). También se asociaron a Encefalopatía la puntuación baja de Apgar y la presencia de líquido amniótico meconial (p=0.001 y 0.002 consecutivamente). Mientras que la edad gestacional (p=1.000), el tipo de parto (p=0.110), la mortalidad (p=0.320) no se vieron asociadas de manera estadísticamente significativa con la Encefalopatía Hipóxico Isquémica. Conclusiones: El valor bajo de pH umbilical se encontró asociado de forma estadísticamente significativa con recién nacidos con riesgo de asfixia que presentaron Encefalopatía Hipóxico Isquémica.
Validation of a chatbot as a tool for monitoring of chronic pain
Authors: Paes Vagner Zeizer Carvalho , Magalhães Ana Carolina de , Pinto Nathali Cordeiro , Veriato Thaís da Silva , Sousa Marcelo Victor Pires de , Fortunato Thereza Cury
Published: July 2023

In this work we studied the use of a chatbot as a monitoring tool for chronic pain. An anamnesis was performed on 28 patients, and afterward, the pain intensity response of each patient was collected by the therapist and the chatbot. It was obtained a strong correlation of 0.94 between the pain intensity collected by the therapist and the chatbot. We noted that 50% of the answers to the chatbot were recorded about 30 minutes after the message was sent. Patients in the age range of 30-60 years responded quicker than others. With respect to gender, male patients answered quicker the chatbot on average. As far as the answers were recorded over the days by the chatbot, the answers recorded diminished approximately linearly. We validated the chatbot as an efficient monitoring of the pain's intensity, being an easy interactive tool showing good adhesion by the patients
Comparative Evaluation of Placement of Auragain, ProSeal and Protector Laryngeal Mask Airways using Fiberoptic Bronchoscopy: A Randomised Clinical Study
Authors: Yuvashree Mahesh , Karthik Krishnamoorthy , Karthika Urkavalan , Sundaram Loganathan
Published: July 2023

Introduction: Supraglottic Airway Devices (SAD) can be used instead of endotracheal intubation in both regular and complicated airway situations. Auragain, ProSeal and Protector Laryngeal Mask Airways (LMA) are second generation LMAs. They have a separate provision for gastric drainage. Auragain LMA is a recent second-generation Supra Glottic Airway device (SGA) with a pre-formed curved shaft and a double lumen having wider airway path to aid endotracheal intubation. ProSeal LMA also has a double cuff for better sealing to prevent gastric insufflation and aspiration. Protector LMA has two large-volume gastric drainage channels and an integrated cuff pressure indicator called the cuff pilot which enables application of higher respiratory pressure. Aim: To compare the adequacy of placement of Auragain, ProSeal and protector LMAs by vocal cord visualisation using fiberoptic bronchoscopy. Materials and Methods: A randomised clinical study was conducted in the Department of Anaesthesiology, SRM Medical College Hospital and Research Centre, Chennai, Tamil Nadu, India, from October 2021 to October 2022 among 120 patients. They were allocated by computer-generated random numbers into three groups namely Auragain, ProSeal and Protector LMA Group. The adequacy of placement of LMA through Fiberoptic Bronchoscopy (FOB) using Brimacombe and berry scoring, Oropharyngeal Leak Pressure (OLP), time of insertion of LMA, number of attempts for insertion, ease of insertion of LMA, Ryle’s tube insertion success rate and postoperative complications were recorded immediately, after an hour and 24 hour, respectively. Statistical analysis was performed using International Business Machines-Statistical Package for the Social Sciences (IBM-SPSS) software version 21.0. Results: The mean±Standard Deviation (SD) age in Auragain groups, ProSeal and Protector LMA groups was 41.35±12.96 years, 36.58±12.62 years and 36.65±12.50 years, respectively. The demographic data, procedures and duration of anaesthesia were comparable between the three groups. The mean insertion time (in seconds) was lower in the Auragain LMA group (16.80±3.66) when compared to protector LMA (20.20±6.93) and ProSeal LMA (21.68±4.44) with statistically significant difference (p-value<0.0001). The OLP (in cm H2O) was more with ProSeal LMA (34.43±5.26) than Protector LMA (32.60±3.45) and Auragain LMA (28.55±1.85) with statistically significant difference (p-value<0.0001). The fiberoptic view was better with ProSeal LMA and statistically significant with Grade 4 (p-value<0.0001) and Grade 3 (p-value=0.007). The three devices were comparable in terms of ease and success of insertion of LMA, ease of placement of gastric tube and postoperative symptoms. Conclusion: It can be concluded that the ProSeal LMA offers better airway access and safety despite being slightly difficult to insert compared to Ambu Auragain or Protector LMA.
Percepção sobre custos da qualidade no serviço de hotelaria de um hospital filantrópico
Authors: Lima Veras de Menezes Gabriela , Cavalcante dos Santos José Glauber
Published: July 2023

O estudo objetiva analisar a relevância atribuída aos custos da qualidade  na  eficiência  do serviço hospitalar a partir da percepção dos colaboradores do serviço  de  hotelaria  e  dos gestores de um hospital privado filantrópico. Para tal, foi realizado um estudo de  caso direcionado a um hospital privado filantrópico em Fortaleza, no estado do Ceará, acreditado pela Organização Nacional de Acreditação (ONA)  no  Nível  3  e  que  desenvolve  diversos serviços na área hospitalar. A pesquisa foi direcionada ao serviço de hotelaria da instituição e, para o alcance do propósito do estudo, foram realizadas entrevistas estruturadas com gestores e colaboradores do hospital. Constatou-se que alguns conceitos, como o de custos, são mais integrados no geral, enquanto outros, como o de qualidade, têm-se uma deficiência maior por parte dos colaboradores em entender e perceber-se como parte do processo, o que suscita a importância de a unidade analisada trabalhar visando a integração de alguns conceitos e de algumas práticas entre todos os colaboradores. Além disso, apurou-se a ferramenta de custos da qualidade não é utilizada na instituição e pouco conhecida, sendo porém sua importância reconhecida pelos gestores.
Salinity and diel timing affect group structure in Delta Smelt
Authors: Chase Samantha N. , Tsai Yi‐Jiun Jean , Croshaw Martin , Hung Tien‐Chieh
Published: July 2023

Delta Smelt are thought to be on the precipice of extinction. Studies that examine how this endangered species responds to environmental change are important to informing conservation efforts. In the wild, Delta Smelt are likely to encounter wide variation in the salinity of their environment that is influenced by both natural and anthropogenic factors. We examined how salinity affects the group structure of Delta Smelt across multiple diel cycles. We found that the interaction between salinity (0, 5, 10 and 15 ppt) and time period (Day 1, Night 1, Day 2 and Night 2) influenced their spatial distribution within a group. Specifically, Delta Smelt were less dispersed, more cohesive and more homogenously distributed in saline water than in freshwater, but only on the first day, and this difference was not statistically significant. We also found that Delta Smelt were significantly less dispersed, more cohesive and more homogenous during the day than at night. Thus, Delta Smelt appear to behaviourally adapt to the initial stress of acute salinity exposure, which may mirror their physiological ability to acclimate to such conditions. Additionally, Delta Smelt group structure appears to shift depending on the time of day, suggesting that diel timing may influence conspecific interactions and should be considered in the experimental design of future studies. These findings further our understanding of how Delta Smelt behaviourally respond to environmental and diel variation.
Electrophysiological mapping of the epicardium via 3D‐printed flexible arrays
Authors: Pong Terrence , Cyr Kevin J. , Carlton Cody , Aparicio‐Valenzuela Joy , Wang Hanjay , Babakhanian Meghedi , Maiuolo Alessandro , Lucian Haley , Wang Paul J. , Woo Y. Joseph , Lee Anson M.
Published: July 2023

Cardiac electrophysiology mapping and ablation are widely used to treat heart rhythm disorders such as atrial fibrillation (AF) and ventricular tachycardia (VT). Here, we describe an approach for rapid production of three dimensional (3D)‐printed mapping devices derived from magnetic resonance imaging. The mapping devices are equipped with flexible electronic arrays that are shaped to match the epicardial contours of the atria and ventricle and allow for epicardial electrical mapping procedures. We validate that these flexible arrays provide high‐resolution mapping of epicardial signals in vivo using porcine models of AF and myocardial infarction. Specifically, global coverage of the epicardial surface allows for mapping and ablation of myocardial substrate and the capture of premature ventricular complexes with precise spatial–temporal resolution. We further show, as proof‐of‐concept, the localization of sites of VT by means of beat‐to‐beat whole‐chamber ventricular mapping of ex vivo Langendorff‐perfused human hearts.
Intraabdominelle Gefäßverletzungen nach stumpfem Bauchtrauma
Authors: Böckler D. , Hatzl J. , Bischoff M. S. , Chang De Hua , Meisenbacher K. , Peters A.
Published: July 2023

Gefäßverletzungen und konsekutive Blutungen sind ernsthafte potenzielle Komplikationen bei der Behandlung von Patienten mit stumpfem Bauchtrauma. Die Behandlung hängt vom Ausmaß und der Lokalisierung ab und kann von der Überwachung über die endovaskuläre Behandlung bis hin zur offenen Operation reichen. Der Schlüssel zum Erfolg sind das FAST(„focused assessment with sonography for trauma“)-Management und eine frühzeitige Entscheidungsfindung. Das abdominale Gefäßtrauma ist nach wie vor ein schwieriges Problem und die offenen und endovaskulären Techniken entwickeln sich weiter, um diesen komplexen Krankheitsprozess zu behandeln.
The Power of Protocol
Authors: d'Avray D. L.
Published: July 2023

How did the papacy govern European religious life without a proper bureaucracy and the normal resources of a state? From late Antiquity, papal responses were in demand. The 'apostolic see' took over from Roman emperors the discourse and demeanour of a religious ruler of the Latin world. Over the centuries, it acquired governmental authority analogous to that of a secular state – except that it lacked powers of physical enforcement, a solid financial base (aside from short periods) and a bureaucracy as defined by Max Weber. Through the discipline of Applied Diplomatics, which investigates the structures and settings of documents to solve substantive historical problems, The Power of Protocol explores how such a demand for papal services was met. It is about the genesis and structure of papal documents – a key to papal history generally – from the Roman empire to after the Council of Trent in the sixteenth century, and is the only book of its kind.
The localisation theorem for the K-theory of stable ∞-categories
Authors: Hebestreit Fabian , Lachmann Andrea , Steimle Wolfgang
Published: July 2023

We provide a fairly self-contained account of the localisation and cofinality theorems for the algebraic

$\operatorname K$

-theory of stable

$\infty$

-categories. It is based on a general formula for the evaluation of an additive functor on a Verdier quotient closely following work of Waldhausen. We also include a new proof of the additivity theorem of

$\operatorname K$

-theory, strongly inspired by Ranicki's algebraic Thom construction, a short proof of the universality theorem of Blumberg, Gepner and Tabuada, and a second proof of the cofinality theorem which is based on the universal property of

$\operatorname K$

-theory.
Multi-class semantic segmentation of breast tissues from MRI images using U-Net based on Haar wavelet pooling
Authors: Yang Kwang Bin , Lee Jinwon , Yang Jeongsam
Published: July 2023

MRI images used in breast cancer diagnosis are taken in a lying position and therefore are inappropriate for reconstructing the natural breast shape in a standing position. Some studies have proposed methods to present the breast shape in a standing position using an ordinary differential equation of the finite element method. However, it is difficult to obtain meaningful results because breast tissues have different elastic moduli. This study proposed a multi-class semantic segmentation method for breast tissues to reconstruct breast shapes using U-Net based on Haar wavelet pooling. First, a dataset was constructed by labeling the skin, fat, and fibro-glandular tissues and the background from MRI images taken in a lying position. Next, multi-class semantic segmentation was performed using U-Net based on Haar wavelet pooling to improve the segmentation accuracy for breast tissues. The U-Net effectively extracted breast tissue features while reducing image information loss in a subsampling stage using multiple sub-bands. In addition, the proposed network is robust to overfitting. The proposed network showed a mIOU of 87.48 for segmenting breast tissues. The proposed networks demonstrated high-accuracy segmentation for breast tissue with different elastic moduli to reconstruct the natural breast shape.
Shakespeare & Collaborative Writing
Authors: Sharpe Will
Published: July 2023

Shakespeare and Collaborative Writing offers a rich account of Shakespeare’s artistic development in, against, and beyond collaboration. We see him afresh as a poetic innovator in continual flux, and in continual artistic debt: an author shaped by others in a collaborative network of intellectual influence and dynamic interchange, and, the book argues, one that he helped substantially to create. In considering collaboration as a practice defining almost all of his earliest works, it shows that he was particularly active in its development in the early theatre scene of his nascent career, changing our sense of his development as a creative artist quite radically. Chapters exploring collaboration via theatre history, book history, and attribution debates complement the central three detailing the different phases of Shakespeare’s collaborative work, reorienting our shifting sense of what it meant to him, and what he gained from it, at these key moments of his artistic career. In reconstructing the circumstances and outcomes of his pairings with other dramatists, and scrutinizing more closely their artistic contributions, Shakespeare and Collaborative Writing reconsiders the ways in which they influenced and challenged him to adapt and experiment with his writing in ways that go beyond the features of his solo-authored canon. In undertaking a rigorous appreciation of the structures and poetics of his co-authored works, this book presents them as distinctive works of art that transform our understanding of Shakespeare the poet, dramatist, and enduring cultural icon.
Workplace well-being: making a case for “psychological” diversity and inclusion
Authors: Dagar Chirag
Published: July 2023

Purpose

Introverts, along with extraverts, form a significant portion of the workforce. This paper aims to conceptualize the case for “psychological” diversity and inclusion of personality by highlighting the introverted view of well-being in the context of the happy-productive worker thesis.

Design/methodology/approach

The study employs an integrative review of the extant literature to investigate the definitions of extraversion and introversion, differences in the meaning of happiness, and measurement parameters of well-being. The social identity theory and broaden and build theory formed the theoretical basis for the posited relationships.

Findings

This study advances the understanding of the connection between the well-being of employees and their performance. Therein, it highlights the role of the inclusion of personality and perspectives of well-being for organizational effectiveness. This paper further suggests measures that managers need to undertake to promote the inclusion of introverts at the workplace and ensure their well-being.

Originality/value

Given the significance, organizations have increasingly undertaken initiatives to promote diversity and inclusion at the workplace. While the demographic composition of the workforce has seen affirmative action, this paper highlights and discusses the case of “psychological” diversity and inclusion.
Culturally relevant social work in Oceania: Reflections and perceptions
Authors: Waqa Malakai , Meo-Sewabu Litea , Nein Mei
Published: July 2023

INTRODUCTION: This article presents reflections of junior staff and final year students at a regional academic institution based in Oceania. Reflections are based on the theme, “What culturally relevant social work in the Oceania context encompasses.”
METHOD: The reflections were gathered as part of a talanoa (discussion) and evaluation focused on the same theme at an international symposium, where students were participants. Even though the talanoa also included social service stakeholders, this article primarily focuses on reflections from students and junior staff at the university.
FINDINGS: Reflections add to recommendations for social work education at a regional university. Culturally relevant social work for respondents meant that the curriculum needed to be inclusive of alternative forms of assessments; encouraging the use of Pacific language; advocating for more Pacific scholars in social work education; promoting collaborations with other international organisations and institutions; and, most importantly, making the institution a regional hub for Pacific social work education that is research informed.
IMPLICATIONS: These reflections are outlined and explored further in this article and recommendations are offered for the continual development and sustainability of social work education in Oceania.
Honoring Anarcha
Say Anarcha: A Young Woman, a Devious Surgeon, and the Harrowing Birth of Modern Women’s Health
J. C. Hallman
Henry Holt, 2023. 448 pp.
Authors: Downs Jim
Published: July 2023

An attempt to give voice to an enslaved subject of medical experimentation falls short
Scientists pursued for massive conference fees
Authors: Catanzaro Michele
Published: July 2023

Speakers at online COVID-19 debates battle claims they owe as much as €80,000
Analysis of Vibration Characteristics and Noise Reduction for 10kV Oil-Immersed Transformer
Authors: Hu Jingzhu , Zhou Bing , Wang Yanzhao , Li Ni , Ni Yuan , Gan Zheyuan
Published: July 2023

Distribution transformers are usually located near residential buildings, which cause serious noise pollution. This paper focuses on reducing the vibration noise of 10[Formula: see text]kV oil-immersed transformer by optimization of transformer case structure. Based on the analysis of the vibration characteristics for the transformer case surface, the noise reduction measures were put forward for the 10[Formula: see text]kV oil-immersed transformer. An optimization method combining finite element and genetic algorithm was proposed, and the surface vibration velocity was reduced by optimizing the size of the heat sink. At the same time, a noise reduction strategy based on modal vibration amplitude optimization was proposed by increasing additional mass blocks. The structure of oil-immersed transformer was designed rationally according to the proposed optimization measures. The measurement result showed that the average A-weighted sound pressure level of the optimized transformer was reduced by 8.41[Formula: see text]dB(A).
PROTECTIVE EFFECT OF ANTI-EPILEPTIC AGENT Q808 ON NEURONAL DAMAGE IN A RAT MODEL OF TEMPORAL LOBE EPILEPSY
Authors: CUI YUNMEI , XIAN ZHEMIN , YAN GEN , LI JINZI
Published: July 2023

The detailed effect of Q808 (6-(4-chlorophenoxy)-tetrazolo[5,1-a]phthalazine) which has been demonstrated to have anti-epileptic activity, on the protection from neuronal damage in temporal lobe epilepsy (TLE) still remains unclear. The purpose of this study was to evaluate the protective effects of Q808 on neuronal damage by exploring its mechanism of hippocampal neuronal apoptosis in a rat model of TLE. Fifty rats were divided equally into five groups. The normal group [Formula: see text] served as the normal non-seizure and untreated group. To induce the TLE model, pilocarpine (20[Formula: see text]mg/kg) was intraperitoneally administered to the other 40 rats; 33 rats successfully developed TLE status. Subsequently, the TLE group [Formula: see text], VPA group [Formula: see text], Q808-L group [Formula: see text], and Q808-H group [Formula: see text] were, respectively, treated with 5[Formula: see text]ml normal saline, 1[Formula: see text]ml/kg valproate, 0.5[Formula: see text]ml/kg Q808, and 1[Formula: see text]ml/kg Q808 solution once daily for 28 days. The Morris water maze test was performed to evaluate the effects of Q808 on cognitive impairment in the TLE model. Hematoxylin-eosin (HE) staining was performed to determine histopathological changes in the hippocampus, immunohistochemistry was performed to determine the expression of caspase-3 in the hippocampus, and western blotting was performed to determine the expression levels of apoptosis-related proteins, including Apaf-1, caspase-9, and caspase-3. Q808 decreased the expression levels of the apoptosis-related proteins in the TLE hippocampal tissue, and higher doses are more effective. Besides, Q808 did not impair spatial cognition and memory. Furthermore, the results indicated that Q808 treatment inhibited neuronal cell death, and significantly decreased the expression levels of apoptotic factors, including Apaf-1, caspase-9, and caspase-3. Q808 prevented neuronal damage in the hippocampus of TLE rats by targeting the intrinsic apoptotic pathway of neurons.
EFFECT OF AXIAL FLOW BLOOD PUMP’S PULSATION SPEED REGULATION ON KEY HEMODYNAMIC PARAMETERS
Authors: WANG SHUAI , WANG HAO , YU ZHEQIN , TAN JIANPING , LI GEQIANG , GUO BIN
Published: July 2023

Implantation of the blood pump is an important method to treat heart failure (HF) at present. Many studies have shown that the pressure waveform produced by the constant speed of the rotary blood pump lacks fluctuation, which may cause a series of body damage. Therefore, it is believed that it is beneficial for the body to produce higher pressure fluctuation by rapidly adjusting the speed of the blood pump, but how to set the parameters in the speed waveform is a big challenge. The purpose of this study is to obtain the regularity of the blood pump’s changing speed on hemodynamics. In this study, a lumped parameter coupling model of the blood pump and cardiovascular system was established, and the blood pump model was improved by introducing the pulsation characteristic component. A velocity regulation waveform that is consistent with the trend of the ventricular activation function was selected. The effects of different speed control parameters on hemodynamic parameters were analyzed, and comparisons with the constant speed were made. The results show that the pulse pressure (PP) is higher at variable speed. The hemolysis value under variable speed is higher than constant speed, and increases with the decreases of speed modulation frequency. We also found that the PP will increase with the decrease of the speed control frequency. To explain this phenomenon, a dimensionless parameter S that combines the integral of the speed pulsation amplitude with the modulation cycle and the heartbeat cycle was proposed. By comparing the S and PP values, it shows that the change rules of the two are compatible. Therefore, the speed modulation of the blood pump should also consider the integral effect of the rotation speed in the cardiac cycle.
KNEE REPLACEMENT RISK PREDICTION MODELING fOR KNEE OSTEOARTHRITIS USING CLINICAL AND MAGNETIC RESONANCE IMAGE FEATURES: DATA FROM THE OSTEOARTHRITIS INITIATIVE
Authors: YANG LI , XIAO FENG , CHENG CHONG
Published: July 2023

This study aims to develop effective predictive models to assess knee replacement (KR) risk in knee osteoarthritis (KOA) patients, which is important in the personalized diagnosis, assessment, and treatment of KOA. A total of 269[Formula: see text]KOA patients were selected from the osteoarthritis initiative (OAI) public database and their clinical and knee cartilage image feature data were included in this study. First, the clinical risk factors were screened using univariate Cox regression and then used in the construction of the Clinical model. Next, their image features were selected using univariate and least absolute shrinkage and selection operator (LASSO) Cox methods step by step, and then used in the construction of the Image model. Finally, the Image+Clinical model was constructed by combining the Image model and clinical risk factors, which was then converted into a nomogram for better visualization and future clinical use. All models were validated and compared using the metric of C-index. In addition, Kaplan–Meier (KM) survival curve with log-rank test and calibration curve were also included in the assessment of the model risk stratification ability and prediction consistency. Age and three Western Ontario and McMaster Universities (WOMAC) scores were found significantly correlated with KR, and thus included in Clinical model construction. Fifty-eight features were selected from 92[Formula: see text]knee cartilage image features using univariate cox, and four image features were retained using the LASSO Cox method. Image+Clinical model and nomogram were finally constructed by combining clinical risk factors and the Image model. Among all models, the Image+Clinical model showed the best predictive performance, and the Image model was better than the Clinical model in the KR risk predictive consistency. By determining an optimal cutoff value, both Image and Image+Clinical models could effectively stratify the KOA patients into KR high-risk and low-risk groups (log-rank test: [Formula: see text]). In addition, the calibration curves also showed that model predictions were in excellent agreement with the actual observations for both 3-year and 6-year KR risk probabilities, both in training and test sets. The constructed model and nomogram showed excellent risk stratification and prediction ability, which can be used as a useful tool to evaluate the progress and prognosis of KOA patients individually, and guide the clinical decision-making of KOA treatment and prognosis.
DENSE SWIN-UNET: DENSE SWIN TRANSFORMERS FOR SEMANTIC SEGMENTATION OF PNEUMOTHORAX IN CT IMAGES
Authors: TANG ZHIXIAN , ZHANG JINYANG , BAI CHULIN , ZHANG YAN , LIANG KAIYI , YAO XUFENG
Published: July 2023

Pneumothorax is a common yet potentially serious lung disease, which makes prompt diagnosis and treatment critical in clinical practice. Deep learning methods have proven effective in detecting pneumothorax lesions in medical images and providing quantitative analysis. However, due to the irregular shapes and uncertain positions of pneumothorax lesions, current segmentation methods must be further improved to increase accuracy. This study aimed to propose a Dense Swin-Unet algorithm that integrated the Dense Swin Transformer Block with the Swin-Unet model. The Dense Swin-Unet algorithm employed a sliding window self-attentiveness mechanism on different scales to enhance multiscale long-range dependencies. We designed an enhanced loss function that accelerated the convergence speed to address the issue of class imbalance. Given the limited availability of data in pneumothorax image processing, we created a new dataset and evaluated the efficacy of our model on this dataset. The results demonstrated that our lesion segmentation algorithm attained a Dice coefficient of 88.8%, representing a 1.5% improvement compared with previous deep learning algorithms. Notably, our algorithm achieved a significant enhancement in segmenting small microlesions.
EEG SIGNAL-DRIVEN HUMAN–COMPUTER INTERACTION EMOTION RECOGNITION MODEL USING AN ATTENTIONAL NEURAL NETWORK ALGORITHM
Authors: CHANG WEI , XU LIJUN , YANG QING , MA YIMING
Published: July 2023

The level of human–machine interaction experience is raising its bar as artificial intelligence develops quickly. An important trend in this application is the improvement of the friendliness, harmony, and simplicity of human–machine communication. Electroencephalogram (EEG) signal-driven emotion identification has recently gained popularity in the area of human–computer interaction (HCI) because of its advantages of being simple to extract, difficult to conceal, and real-time differences. The corresponding research is ultimately aimed at imbuing computers with feelings to enable fully harmonic and organic human–computer connections. This study applies three-dimensional convolutional neural networks (3DCNNs) and attention mechanisms to an environment for HCI and offers a dual-attention 3D convolutional neural networks (DA-3DCNNs) model from the standpoint of spatio-temporal convolution. With the purpose of extracting more representative spatio-temporal characteristics, the new model first thoroughly mines the spatio-temporal distribution information of EEG signals using 3DCNN, taking into account the temporal fluctuation of EEG data. Yet, a dual-attention technique based on EEG channels is utilized at the same time to strengthen or weaken the feature information and understand the links between various brain regions and emotional activities, highlighting the variations in the spatiotemporal aspects of various emotions. Finally, three sets of experiments were planned on the Database for Emotion Analysis using Physiological Signals (DEAP) dataset for cross-subject emotion classification experiments, channel selection experiments, and ablation experiments, respectively, to show the validity and viability of the DA-3DCNN model for HCI emotion recognition applications. The outcomes show that the new model may significantly increase the model’s accuracy in recognizing emotions, acquire the spatial relationship of channels, and more thoroughly extract dynamic information from EEG.
INVESTIGATION OF THE LOADING AT THE KNEE JOINT COMPLEX USING AN EMG-BASED CONSTITUTIVE LAW FOR SKELETAL MUSCLE FORCE
Authors: KNODEL NATHAN B. , CALVERT L. BRIE , BYWATER EMILY A. , LAMIA JOSEPH P. , PATEL SHIV N. , NAUMAN ERIC A.
Published: July 2023

This study investigated the predictive ability of the skeletal muscle force model presented by Knodel et al. [Knodel NB, Lawson LB, Nauman EA, “An emg-based constitutive law for force generation in skeletal muscle-part i: Model development,” J Biomech Eng (in press), doi: 10.1115/1.4053568] on the knee joint. It has previously been validated on the ankle joint [Knodel NB, Calvert LB, Bywater EA, Lamia JP, Patel SN, Nauman EA, “An emg-based constitutive law for force generation in skeletal muscle-part ii: Model validation on the ankle joint complex,” Submitted for Publication] and this paper aimed to identify how well it, and the solution process, performed on a more complex articulation. The knee joint’s surrounding musculoskeletal tissue loading was also identified. Ten subjects (five male and five female) performed six exercises targeting the muscles that cross the knee joint. Motion capture, electromyography, and force plate data was collected during the exercises for use in the analysis program written in MATLAB and magnetic resonance images were used to observe subject-specific ligament and tendon data at the knee articulation. OpenSim [Delp, SL, Anderson FC, Arnold AS, Loan P, Habib A, John CT, Guendelman E, Thelen DG, “Opensim: Open-source software to create and analyze dynamic simulations of movement,” IEEE Trans Biomed Eng 54(11):1940–1950, 2007, doi: 10.1109/TBME.2007.901024] was used for scaling a generic lower extremity anatomical model of each subject. Five of the six exercises were used to calculate each muscle’s constant, [Formula: see text] [Knodel NB, Lawson LB, Nauman EA, “An emg-based constitutive law for force generation in skeletal muscle-part i: Model development,” J Biomech Eng (in press), doi: 10.1115/1.4053568; Knodel NB, Calvert LB, Bywater EA, Lamia JP, Patel SN, Nauman EA, “An emg-based constitutive law for force generation in skeletal muscle-part ii: Model validation on the ankle joint complex,” Submitted for Publication], and the sixth was used as a testing set to identify the model’s predictive ability. Average percent errors ranged from 9.4% to 26.5% and the average across all subjects was 20.6%. The solution process produced physiologically relevant muscle forces and the surrounding tissue loading behaved as expected between the various exercises without approaching respective tensile strength values.
On a characterization of starlike functions with respect to (2ȷ,ℓ)-symmetric conjugate points
Authors: Karthikeyan K. R. , Senguttuvan A.
Published: July 2023

In this paper, we introduce and study a new subclass of starlike functions with respect to [Formula: see text]-symmetric conjugate points using the principle of subordination. Several relationship with the well-known classes have been established. We have focussed on conic regions when it pertained to applications of our main results. Inclusion results, subordination property and coefficient inequality of the defined class are the main results of this paper. The applications of the results are presented here as corollaries, most of which are extensions of well-known results.
Flipped classroom for undergraduate medical students in India: are we ready for it?
Authors: Malhotra Anita S. , Bhagat Anumeha
Published: July 2023

We conducted a study to find if flipped teaching model improves the learning of medical undergraduate students and assess students’ perceptions. There was no difference in marks obtained by students taught with either flipped or traditional methods. The reasons for this could be differences in the level of learner, prior exposure, or learner readiness for active learning. Since students prefer the flipped method of classroom teaching, it is feasible to adopt it in the Indian classroom.
Tehetséggondozás a magyar gazdasági felsőoktatásban : Fókuszban a Tudományos Diákköri Konferencia és a Közgazdaságtudományi Szekció
Authors: Bán Erika , Ilyésné Molnár Emese , Jármai Erzsébet Mária , Vágány Judit Bernadett
Published: July 2023

A szerzők tanulmányukban többéves kutatómunka eredményeként komplex módon mutatják be a magyar gazdasági felsőoktatásban megvalósuló tehetséggondozást, s ezen belül a tudományos diákköri mozgalom helyzetét. A tanulmány céljai között szerepelt a tudományos diákköri (TDK) konferencia szerepének és történetének bemutatásán túl a TDK országos vezetői, a tehetséggondozásban élen járó egyetemi oktatók, valamint az egyetemi hallgatók helyzetfeltáró véleményének megismerése a mozgalom jelentőségéről és a tehetséggondozásban betöltött szerepéről, az érintettek részvételi motivátorairól. Ezen összetett célrendszer betöltése többféle kutatási módszer bevonásával vált lehetővé. Tanulmányuk eredményeként megállapítható, hogy a TDK, mint a tehetséggondozás egy formája, magában foglalja a belső motiváció erősítését, valamint az anyagi és erkölcsi ösztönzők biztosítását is. Lényeges megállapítás az, hogy az oktatók és hallgatók TDK-mozgalomhoz való viszonyulását összességében az intézményi kultúra erősen befolyásolja.
Uncertain Citizenship
Authors: Ryburn Megan
Published: July 2023

Uncertain Citizenship: Everyday Practices of Bolivian Migrants in Chile explores how Bolivian migrants to Chile experience citizenship across borders in their daily lives. Based on multi-sited ethnography, the book uncovers migrants’ lived realities in Chile and Bolivia. It also does broader conceptual work. It suggests that it is necessary to find new modes of thinking about the shifting and uneven ways that migrants in different parts of the world live citizenship in the everyday. It proposes that one way in which migrants’ citizenship can be comprehended is by considering their relationships to different transnational spaces of citizenship—legal, economic, social, and political. In what ways are migrants—simultaneously and multiply—excluded from or included in these spaces across borders? How are exclusions produced? How do migrants pursue greater inclusion? In addressing these questions, the book suggests that migrants’ experiences of a complex array of shifting inclusions and exclusions across these spaces of citizenship can best be captured through the lens of uncertainty.
Sanksi Pidana dalam Pengalihan Fungsi Ruang Terbuka Hijau
Authors: Aulia Zam Zam Mutiara , Bagus Moh. , Firmansyah Arief
Published: July 2023

Research with the title "Criminal Sanctions in the Transfer of Functions of Green Open Spaces" is an abstraction of the problems of transferring functions of green open spaces. This study aims to answer the case of the transfer of the function of RTH (Green Open Space) which has been carried out by the management of RW (Rukun Tetangga) Citra Sentosa Mandiri Housing Complex located in Sidoarjo district. The transfer of function of the Green Open Space to utilize the Green Open Space as a place to sell street vendors provided for the housing residents themselves. In this study, the authors used normative research methods, which are scientific research procedures to find truth based on scientific logic from a normative perspective. This research is basically based on a critical and in-depth study of literature and legal documents that are relevant to the legal issues studied. The results of the research that the author has reviewed using normative research methods show that the RW (Rukun Warga) Citra Sentosa Mandiri Housing Management has transferred functions that are not in accordance with applicable laws and received criminal sanctions in accordance with laws.
Optimization of Multi-Component Topology and Material Orientation Design of Composite Structures Using AI
Authors: Srivastava Neeraj
Published: July 2023

Composite materials offer a wide range of advantages in terms of strength, weight, and versatility, making them a popular choice for structural applications. The performance of composite structures depends not only on the material constituents but also on the topology and arrangement of these components. However, designing an optimal configuration that maximizes the desired performance metrics can be a challenging task due to the large design space and complex interactions between the components. It presents a novel approach for optimizing the multi-component topology and material orientation design of composite structures using artificial intelligence (AI) techniques. The objective is to develop an automated and efficient methodology that can identify the most optimal configuration for a given set of performance requirements. The proposed methodology combines AI algorithms, such as genetic algorithms and machine learning, with advanced computational modeling techniques. The genetic algorithms are employed to explore the design space and search for the best combination of topology and material orientations. Concurrently, machine learning techniques are utilized to model the complex relationships between the design variables and performance metrics, enabling the identification of design patterns and accelerating the optimization process.

To achieve this, a comprehensive framework is established, encompassing the   generation of an initial population of candidate designs, evaluation of their performance using numerical simulations or experimental testing, application of genetic algorithms to iteratively evolve the population by selecting the fittest designs and introducing variations, and utilization of machine learning models to predict the performance of new designs and guide the optimization process. The effectiveness of the proposed methodology is demonstrated through a case study involving the design of a composite aerospace structure. The results reveal that the AI-based optimization approach significantly outperforms traditional trial-and-error methods, leading to improved performance metrics such as strength, stiffness, and weight.

The findings have significant implications for the design and manufacturing of composite structures in various industries, including aerospace, automotive, and civil engineering. The automated optimization process enabled by AI techniques can efficiently explore the design space, identify innovative solutions, and ultimately enhance the overall performance of composite structures.
The Effects of Planar Microstrip Patch Antennas on Cross Polarised X-Ray Radiations
Authors: Agnihotri Aditiya
Published: July 2023

An MPA, or microstrip patch antenna, is an antenna made out of a metal patch mounted on a grounded base. The shape of the metallic patch is flexible and may be a rectangle, a circle, a triangle, etc. For decades, microstrip patch antennas have played a crucial role in wireless communication systems. The Mobile Phone Industry has come to rely heavily on the MPA in recent years. The primary goals of this study are to minimise XP radiation, suppress a higher-order mode that isn't desired (a spurious mode), shrink the size of planar RMPA, and increase its gain for use at lower frequencies (S-band, 2–4 GHz). A pair of symmetrical metallic stubs loaded between the ground and the patch, a pair of symmetrical linear slots etched in the ground plane as DGS(Defected Microstrip Surface) (DMS), and the incorporation of a rectangular slot etched in the radiating patch as DMS(Defected Ground Structure) near the non-radiating edge all contribute to this goal. The HFSS simulator was used to conduct analyses of the investigated parameters, including return loss, gain, radiation pattern, etc.
Assessment of Bank Services Excellence in Iraq: A Comprehensive Investigation Employing the SERVQUAL Model
Authors: Ghayth Al Laheebi , Molnár László
Published: July 2023

This study employs the SERVQUAL model to investigate the service quality of banks operating in Iraq comprehensively. The objective is to identify gaps between customers' expectations and perceptions of the service quality of bank service providers in Iraq. The study utilizes data collected from customers from the Iraqi banking sector. An item-level analysis and Importance-Performance Analysis (IPA) were employed. The results reveal a significant level of perceived service quality among participants, indicating that customers generally experience satisfactory service from their respective banks. However, negative gap scores over dimensions suggest that there is a need for improvement. The findings of this study will contribute to the development of a better understanding of customer expectations and perceptions of service quality in the Iraqi banking sector and provide valuable insights for banks to enhance their service delivery.