bluuebunny/crossref_metadata_2025 huggingface dataset:
Fibroid pseudocapsule: a modern view of the problem. A literature review
Authors: Polenov Nikolai I. , Yarmolinskaya Maria I.
Published: February 2024

Uterine fibroids are a benign polyetiological, hormone-sensitive, monoclonal tumor originating from the smooth muscle cells of the myometrium. They differ in size, location, growth rate, parenchyma-stroma ratio, morphohistogenesis, and clinical manifestations. Despite the frequent occurrence of this disease, its pathogenesis is poorly understood. In particular, the role of the fibroid pseudocapsule is a topic of interest. The appropriateness of retaining the pseudocapsule during myomectomy and the association of its retention with the risk of disease recurrence also remain controversial. This article is a literature review of data ranging from 2013 to 2023, available in the PubMed and Scopus databases. The main aspects of domestic and international clinical guidelines are also presented. This review covers epidemiological features and clinical aspects of uterine fibroids, as well as intraoperative and morphological characteristics of the fibroid pseudocapsule. Current data on the role of the MED12 gene, PGP 9.5, SP, VIP, VEGFR, IGF-2, endoglin, and oxytocin in the pathogenesis of uterine fibroids are also presented. Literature on the effect of gonadotropin-releasing hormone agonists on the morphology and functions of the pseudocapsule is submitted in the text. Despite the possible regenerative properties of the fibroid pseudocapsule, there is still a lack of systematic studies in the literature regarding the molecular and biochemical characteristics of the pseudocapsule, which makes it necessary to further investigate this morphological structure.
Aplicación de la Carta de Control NP en una Máquina Reencauchadora de Rodillos Industriales
Authors: Bernal-Barbosa Laura , Cervantes-Morales Laura , Saltarin-Otero Alex , Rivera-Rojas Laura
Published: February 2024

En este estudio, se plantea la implementación de una carta de control, en una reencauchadora de rodillos industriales, con la intención de definir el tipo de carta a utilizar, para recopilar datos, determinar la capacidad del proceso y analizar resultados para verificar el estado del proceso. La metodología implementada es de corte transversal e implicó tomar 30 muestras de tamaño 10 durante un período de dos meses, en los cuales un operario identifica a partir de valoraciones cualitativas, los rodillos que presentan el defecto tipo burbuja y alimenta una base de datos para llevar la trazabilidad de la incidencia de este, utilizando la "Carta np" y el software estadístico Minitab para el control de calidad y la estandarización de procesos. Por medio de estas herramientas, se obtuvieron resultados que permitieron estimar que el proceso estaba bajo control estadístico, pero su desempeño no era satisfactorio, ya que el 47% de los datos excedía la media esperada. Se observó alta variabilidad y ciclicidad, principalmente debido a la disminución de productos defectuosos, sin reflejar una mejora real. La capacidad del proceso se evaluó en un 75.3%, lo que indica que el proceso, no cumplió con los estándares requeridos generando así afectaciones tanto financieras como productivas, por ende, se sugiere la implementación de medidas correctivas o mejoramiento de los procesos, para finalmente mitigar la presencia de este tipo de defectos en el producto final.
Problemáticas de Aserraderos en Zonas Urbanas
Authors: Asprilla-Hurtado Marinella , Estacio-Grueso Luis , Bermúdez-Quintero Luis
Published: February 2024

En la actualidad los bosques son una fuente de trabajo y sustento económico para aquellos que tienen escasas opciones de empleo fuera del sector agrícola, de esta manera los bosques apoyan y sostienen a las economías rurales (de donde la sacan) sin embargo, se debe tener en cuenta que la tala indiscriminada genera severas afectaciones al medio ambiente. Es por esto que este artículo busca cómo objetivo dar a conocer la utilización de los residuos producto del proceso de explotación de la madera y a su vez las problemáticas de los aserraderos en las zonas urbanas con esta actividad. Partiendo de las necesidades socioeconómicas de la población que ejerce la labor informal de la tala, venta, comercialización y producción de elementos referentes a la madera, es por esto se debe tener en cuenta, dentro de la producción de los mismos el uso que se le da a los residuos de la madera y las dificultades o eventos que genera esta actividad.  Siendo esencial encontrar actividades amigables con el medio ambiente, cómo la producción de elementos combustibles que reducen el consumo de químicos que lo que han logrado con el pasar de las décadas es el deterioro ambiental
Gestión de Cadena de Suministros y Logística del Yogur
Authors: Assan Barrios Karolay , Castro Garcia Lia Valentina , Fontalvo Altamiranda Diana Carolina , Jimenéz Coronell Camilo Andrés , Ramírez Giraldo Stefania
Published: February 2024

El presente caso de estudio tuvo como objetivo identificar y analizar la cadena de abastecimiento del yogur, producto lácteo que cuenta con grandes beneficios para la salud debido a sus componentes nutricionales, relacionando así los principales procesos logísticos que intervienen, de igual forma implico el reconocimiento de las variables en una red de abastecimiento junto con su relación respecto a calidad, costo, tiempo, flexibilidad para la optimización de decisiones en sistemas de transporte y distribución, a partir del diseño de modelos de localización y ruteo de vehículos con capacidad. La metodología utilizada fue investigativa y analítica, por tanto, se realizó la búsqueda de información relevante para determinar los eslabones y procesos logísticos que hacen que sea posible la implementación de la cadena de abastecimiento del producto, seguidamente partiendo del cálculo de las dimensiones, peso del producto, caja de embalaje y tendido se seleccionó el euro pallet, además se consideró un conjunto de bodegas y clientes en Barranquilla en conjunto con tiempos de viaje, posteriormente con las características de unidad de carga y capacidad de vehículos, demanda y costos se diseñó un modelo de localización con capacidad. Para luego formular un modelo CVRP, obteniendo así una ruta que visita todos los clientes, suple la demanda y minimiza la distancia. Concluyendo así con la definición de los factores inmersos dentro del proceso de fabricación, almacenamiento y distribución del producto e igualmente siendo la bodega tres la más factible, resultando en una cadena de valor con un flujo eficiente y rápido
Una breve revisión de la literatura sobre condiciones inseguras en máquinas para empaquetar Blíster
Authors: Santiago-Jiménez Luis
Published: February 2024

En el presente escrito se indagará sobre las condiciones inseguras que se presentan en las máquinas para blíster, en las cuales se genera una gran cantidad de accidentes de trabajo. Con la intención de conocer algunas publicaciones desde 2015 hasta 2021 en referencia a esta problemática. Esta información servirá como consulta y además puede servir de base para que cualquier investigador pueda idear un plan de intervención que ayude a las empresas a minimizar o erradicar los riesgos asociados a esta clase de maquinaria.
Vernix caseosa peritonitis: a mimic for post-partum appendicitis
Authors: Sellars James N. , Green Ryan , Jeyarajan Eshwarshanker
Published: February 2024

Vernix caseosa peritonitis is an uncommon pathology predominantly affecting post-partum women who have undergone caesarean section and has symptomatology identical to common intra-abdominal surgical pathology. Cross-sectional imaging may not differentiate this from an alternative aetiology, thus a broad range of differentials must be considered in the early post-partum patient. This case of a 26 year-old post-partum patient who underwent an appendicectomy for CT-confirmed appendicitis had a histological diagnosis of vernix caseosa peritonitis. This case demonstrates the diagnostic challenge of acute abdominal pain in the early post-partum period and the high index of suspicion that clinicians must have to reach these uncommon diagnoses.
The management of metacarpal and phalangeal fractures of hand by K-wires and Joshi’s external stabilization system
Authors: Rather Aabid A. , Lone Aadil A. , Bhat Aamir N. , Bhat Jawed A.
Published: February 2024

Background: Hand injuries are quite common and affect 15% of people who go to the emergency room. The metacarpals and phalanges are the two bones that fracture most frequently, with a prevalence of between 10 and 15%. Use of K-wires with an external fixation system, such as Joshi's external stabilization system (JESS), is optional. According to the ligamentotaxis theory, JESS functions. Aim was to evaluate the clinical and radiological outcome of metacarpal and phalangeal fractures using k wires and jess.
Methods: This prospective study was conducted in post graduate department of orthopaedics SKIMS medical college Bemina, on 40 patients with metacarpal and phalangeal fractures managed by Kirschner wires (K-wires) and JESS. The collected data was analyzed with the help of statistical package for social science (SPSS), version 21
Results: In present study the most of the study subjects were in the age group of 28-37 years (40%), there was male predominance with the male to female ratio 2.5:1, majority of the study subjects were labourer (38%), right side was involved most commonly (62%), the major cause of fracture was road traffic accident (58%) and most (96%) of the study subjects were operated within 24 hours of the injury.
Conclusions: The study concluded that augmentation of JESS over K-wires provides a stable skeletal environment with early tissue healing and immediate active and passive mobilization of the uninjured adjacent joints and also provides rotational stability as the majority of the study subjects achieved excellent functional outcome.
The Vax effect: Role of global vaccination initiatives in pandemic control and impact in Dehradun during COVID-19
Authors: Singh Ankita , Gurada Nivedita Chetan , Mahendru Nidhi , Kashyap Abhijeet , Bhanu Sourabh , Sharma Narotam , Kaushik Ritu
Published: February 2024

COVID-19 was one of the most contagious diseases spread throughout the world and caused by the Corona virus. Its cellular and molecular profiling was performed on individuals suffering from Covid-19-like sickness in Dehradun. During this investigation, 100 random samples were taken from patients. Real Time PCR amplification of suspected cases of Covid-19 was done where 68% of the cases were positive. The proportions and patterns of positive cases and hospital admissions for covid-19 in the third wave in Dehradun were significantly different when compared to the first and second waves. This disparity was caused by a number of factors, including changes in lifestyle, natural immunological ability to cope with recent waves of natural infections, and the most important factor, which was that more than 83% of people over the age of 18 years had received the first or both doses of the vaccine. The Covid-19 vaccines were so effective due to which there was a very low rate of serious infection, hospitalization, and mortality.
Vegetarian diet induced new onset acute gouty arthritis in a middle-aged genetically predisposed male: A rare presentation
Authors: Agrawal Poonam , Agrawal Mohit , Chopra Deepti
Published: February 2024

Gout is a metabolic disease characterised by acute or chronic arthritis which is due to deposition of Monosodium urate (MSU) crystals in joints and soft tissues. Classically described as a disease associated with hyperuricemia which may be due to metabolic defect in uric acid production or due to impaired renal excretion.

We present a case of 45 year old nondiabetic, non-alcoholic, non-smoker male presented to orthopaedic OPD with complain of pain in right hand and left leg with restriction of joint mobility for past 14 hours.

On carefully eliciting the dietary history patient revealed that he was a vegetarian and was on high purine rich diet for past 2 weeks due to family functions and various gatherings. Patient gave the history of consumption of cauliflower, mushrooms, beans along with sweetened carbonated drinks on two consecutive days before the onset of these symptoms.

Serum uric acid 4.5 mg/dl, C-reactive protein was 9 mg/dl. To best of our knowledge this is the first case being reported in literatures where purine rich vegetarian diet has induced new case of gout.

This kind of gout precipitation after consuming vegetarian diet is rarely reported in literature. This case report emphasizes upon the need of special caution to be taken by persons who are genetically predisposed to gout, while consuming purine rich diet like red meat, seafood, cauliflowers, spinach, rajma, Bengal gram, mushrooms, soft drinks sweetened with fructose.
Momen Kritis Jurnalisme: Problematika Media Sosial dan Disiplin Verifikasi di Jawa Timur
Authors: Maria Barbara Apul Merlina , Krisdinanto Nanang
Published: February 2024

Pandemi Covid-19 memunculkan situasi yang disebut momen kritis jurnalisme yang bisadilihat dalam lima hal, yaitu titik balik, transformasi, titik awal, akselerasi, dan penghancuran. Padasaat yang sama, perkembangan media sosial yang menjadi kian esensial dalam proses produksiberita atau praktik jurnalistik. Kedua hal ini memunculkan problem yang kompleks dalam prosesproduksi berita, terutama terkait dengan disiplin verifikasi dan posisi media sosial. Penelitian inibertujuan untuk menguraikan pergulatan atau problematika yang dialami jurnalis Surabaya dalammemproduksi berita pada situasi pandemi. Metode yang digunakan adalah studi kasus, dan datadikumpulkan melalui wawancara mendalam, observasi, serta kajian literatur. Temuan penelitian inimerefleksikan terjadinya pergulatan yang dialami jurnalis dalam menjalankan praktik jurnalistikprofesionalnya pada masa pandemi. Momen kritis jurnalisme yang ditimbulkan oleh pandemisemakin mengakselerasi penggunaan media sosial dalam praktik jurnalistik hingga pada tarafketergantungan. Ketergantungan ini menjadi problem dalam jurnalisme mengingat informasimedia sosial yang dijadikan sumber berita merupakan hasil produksi warga yang tidak memilikikompetensi profesional dalam jurnalisme. Selain itu, pandemi juga mengakibatkan terjadinyamomen kritis jurnalisme yang bersifat titik balik (turning point) berupa pengabaian terhadap berbagaiaspek rutinitas di lapangan, atau proses reportase yang dilakukan jurnalis digital di lapanganterutama terkait disiplin verifikasi.
GENEL SAĞLIK SİGORTASINDA YERSİZ ÖDEMELERİN İADESİ
Authors: Baskan Şükriye Esra
Published: February 2024

Anayasa m.60’da “Herkes, sosyal güvenlik hakkına sahiptir” şeklinde güvence altına alınmış sosyal güvenlik hakkı kapsamında belirli sosyal risklerle karşılaşan sigortalı veya hak sahipleri ile bakmakla yükümlü olunan kişilere Devlet tarafından gelir ve sağlık yardımları yapılır. 5510 sayılı Kanun m.60 ve devamında ise belirli koşulların gerçekleşmesi durumunda sigortalı ya da hak sahiplerine sağlık yardımlarının yapılması öngörülmüştür. Buna karşılık söz konusu yardımlara hak kazanmak için aranan koşullar gerçekleşmeksizin Kurumca (SGK) yapılan ödemeler yersiz ödeme olarak adlandırılarak 5510 sayılı Kanun m.96 kapsamında iadeye tabi tutulmuştur. Sağlık yardımlarına hak kazanma için gerekli olan genel sağlık sigortalısı olma koşulu değerlendirildiğinde, yasa gereği herkesin genel sağlık sigortalısı sayılması ilkesi karşısında yapılan ödemenin yersiz olarak nitelendirilip nitelendirilemeyeceği tartışması ortaya çıkmıştır. Özellikle genel sağlık sigortalısı sıfatındaki hatalı değerlendirmelere ilgilinin kötü niyetle neden olması durumunda yersiz ödemenin söz konusu olup olmayacağı tereddüt yaratmıştır. Çalışmamızda, genel sağlık sigortasında yersiz ödemelerin iadesi tartışılmış ve konuya ilişkin mevcut Yargıtay uygulamasının esasları ortaya konulmuştur.
The Effectiveness of Teaching Self-Management to Students with Autism Spectrum Disorder on Their Self-Management, On-Task and Task Completion Skills
Authors: Gönen Akın , Çıkılı Yahya
Published: February 2024

Introduction: Self-management strategies (SMS) consist of antecedent cue regulation, self-monitoring, self-instruction, self-evaluation, or self-reinforcement strategies. Students with autism spectrum disorder (ASD) can use these strategies especially in their daily life skills, academic skills, or in environments that require social skills.
Method: In this study, the effect of self-management (SM) teaching on the acquisition and maintenance of SMS by students with ASD was examined. It was also aimed to determine how students acquire and maintain the behaviors of on-task and task completion by using strategies, and to what extent they generalize the strategies and target behaviors to different people/environments. The study was conducted using multiple probe design with probe conditions across subjects, one of the single-subject research models.
Findings: The findings of the study showed that SM teaching was effective in helping students with ASD acquire SMS, and that students who used the strategies continued to use the strategies after the intervention. In addition, it was determined that students who used the SMS consisting of antecedent cue regulation, self-monitoring, self-evaluation, and self-reinforcement increased their on-task and task completion levels, maintained the gains after the intervention and generalized them to different people and environments. Social validity findings collected from the participants showed that they were positive about the use and effects of the SMS.
Discussion: There was a significant increase in students' pre-teaching and post-teaching performances regarding target behaviors. The effectiveness of SM interventions was tried to be supported by the findings of the current study and was consistent with the results of the related study.
Automated Defect Detection for Epoxy-Carbon Prepreg Laminates in Data Fusion Approach
Authors: Zhu P , Wei Z , Zahra O , Marchais G , Servais P , Boulanger T , Maldague X
Published: February 2024

Fibre-reinforced polymer composites have become widely used materials in the manufacturing of aerospace, boat building, and automotive, due to their high specific stiffness and strength, chemical resistance, etc. However, the curing process has a major influence on void content and fibre-matrix interface, affecting the quality of the composite part. In this work, non-destructive testing based on infrared thermography and shearography is used to detect the subsurface defects and impact damage in epoxy-carbon prepreg laminates. Different data fusion methods are used for the incrementing of the detection ability. For the requirement of industrial applications, an automated defect detection method named YOLOv7 is performed in the data fusion view. To improve the detection ability of YOLOv7, a data augmentation method named MixUp is used to construct the datasets obtained from the simulation. The experimental results show the excellent detection capacity of the proposed method. Furthermore, the experimental results also illustrate that the data fusion technique of the Dempster-Shafer method has the best effect compared with the other methods.
Novel infrared methodologies for material emissivity and temperature determination for space atmospheric re-entry
Authors: De Cesare M , Savino L , Di Carolo F , Del Vecchio A , Galietti U , Palumbo D
Published: February 2024

The Thermal Protection Systems (TPSs) of space vehicles, in the atmospheric re-entry phase, have to withstand high thermal fluxes and high temperature and their emissivity is one of the main parameters to be characterized. Thermography combined to other devices, such as pyrometers and thermocouples, allows to characterize the emissivity of the material when it is heated in a high temperature furnace. Furthermore the use of the thermography performed during a hypersonic Plasma Wind Tunnel test allows to obtain information about temperature and emissivity of the material in an environment similar to the one characterizing the atmospheric re-entry phase. Since the emissivity for innovative materials can be an unknown parameter, in order to obtain temperature maps free from emissivity, a new technique based on the dual color principle applied to the thermographic devices has been analysed.
Diagnostic Tool for Diabetic Retinopathy using Thermal Eye Images
Authors: Rajagopalan Nithya , Nirmala K , Vahini M , Nisha S , Rakshitha S
Published: February 2024

Diabetic Retinopathy (DR) occurs as an effect of Diabetes, affecting the retina causing loss of vision. Worldwide 27% of the diabetic individuals are estimated to have DR, leading to 0.4 million blindness. As the DR population increases every year, early diagnosis is the need of the hour to avoid further progression of the disease thereby preventing blindness. In this work, DR diagnosis is performed using thermal images of the eye. According to earlier research on the eye, the increase in ocular surface temperature caused by dilatation is less in individuals with diabetic retinopathy than in control participants, making it a possible parameter for DR diagnosis. This imaging modality is non-invasive and less time consuming making it an easier diagnostic tool for large scale screening. For this work real time images are acquired from both the eyes of 20 DR participants and 16 control participants, with a total of 62 thermal eye images. The significant features from the pre-processed thermal eye images are extracted using Scale invariant transform and Gabor Transform methods. The extracted features are processed using optimal Machine learning algorithms to classify DR images from normal images. The diagnostic accuracy of the proposed tools is 96%. The results indicate that the IR thermal imaging system could be an efficient method for the non-invasive and non-contact detection of thermal anomalies in the eyes of patients with diabetes.
Characterizing Fiber Orientations and Layer Stacking Sequences in CFRP Laminates through Induction Heating Patterns: A Nondestructive Approach
Authors: Unnikrishnakurup Sreedhar , Kidangan Renil Thomas , Krishnamurthy C V , Balasubramaniam Krishnan
Published: February 2024

The induction heating using a circular coil in Carbon Fiber Reinforced Polymer (CFRP) laminates produces unique heating patterns, significantly influenced by the fiber orientations in each layer and electrical contacts between layers. This study investigates these patterns using thermography and reveals a transition from circular to rectangular heating patterns under the influence of a circular induction coil. This shift is driven by changes in interlaminar microstructure, particularly increasing fiber separation at interfaces, interpreted as fewer electrical contacts. The research also presents a novel nondestructive, noncontact method for identifying fiber orientations within CFRP laminates. The method employs a 2D Fast Fourier Transform (2D-FFT) to extract fiber orientations from the spatial characteristics of the heating patterns. The study demonstrates the effectiveness of this method for accurately determining fiber orientations in quasi-isotropic CFRP laminates. This methodology opens potential applications for large-area inspection and quality control in fiber-reinforced composite manufacturing.
The last decade of IR thermographic NDT research at Tomsk Polytechnic University: from software to hardware
Authors: Vavilov V , Chulkov A , Shiryaev V , Kladov D
Published: February 2024

The first studies in the field of IR thermographic NDT at Tomsk Polytechnic University, Russia, can be traced back to the 1970s. During the past years, the emphasis in the research has been shifted from the mostly theoretical and methodological aspects of this inspection technique toward development of specialized thermal NDT equipment to be used in the aviation and aerospace industries. A short review of the current research is presented in this paper.
Thermomics: Temporal Thermography Features
Authors: D. Buitrago Leonardo
Published: February 2024

Dynamic thermography has firmly established itself as a diagnostic tool for breast cancer screening, often employed in conjunction with mammography and Clinical Breast Examination (CBE). Thermomics or temporal dynamic thermographic imaging biomarkers, have demonstrated their ability in the identification of vasodilation and angiogenesis within breast tissue, serving as biomarkers to highlight abnormalities and lesions. The development of new blood vessels or angiogenesis is also revealed with the aid of heterogeneous thermal patterns. This study focused on an overall look at the thermomics and they are for CBE-based breast cancer screening. We showed an application of dynamic thermal image embedding approaches and their help to find breast thermal heterogeneity with the optimal number of low-rank factorization methods. Using ideal biomarkers holds the potential of maintaining thermal heterogeneity, facilitating the early detection of breast cancer, and can function as a non-invasive aid for CBE.
Exploring stochastic differential equation for analyzing uncertainty in wastewater treatment plant-activated sludge modeling
Authors: Zonouz Reza Shahidi , Nourani Vahid , Sayyah-Fard Mina , Gokcekus Huseyin , Ke Chang-Qing
Published: February 2024

The management of wastewater treatment plant (WWTP) and the assessment of uncertainty in its design are crucial from an environmental engineering perspective. One of the key mechanisms in WWTP operation is activated sludge, which is related to the biological oxygen demand (BOD) parameter. In the modeling of BOD, the conventional approach utilizing ordinary differential equations (ODEs) fails to incorporate the stochastic nature of this parameter, leading to a considerable level of uncertainty in the design of WWTP. To address this issue, this study proposes a stochastic model that utilizes stochastic differential equations (SDEs) instead of ODE to simulate BOD activities of microorganisms and wastewater flow rate (Q). The SDEs and integral It̂o are solved using the Euler–Maruyama method for a period of 15 sequential days and the timespan of 2019–2020 for a WWTP in Tabriz City. SDE improves the design of WWTP facilities by identifying uncertainties and enhancing reliability. This, in turn, increases the reliability of the technical structures within the WWTP and improves the performance of its biological system. By considering the randomness of the problem, the proposed method significantly improves the results, with an enhancement of 11.47 and 10.11% for the BOD and Q models, respectively.
Methods of Describing and Characterizing Fourier Processors for Spectral Processing of Radio Frequency Signals
Authors: ZAICHENKO Kirill V. , GULYAEV Yuri V.
Published: February 2024

Filtering and spectral analysis of radio signals are used in various radio engineering
information systems for a wide range of applications, including the parallel real-time analysis
of large amounts of data. Along with devices for multi-channel radio signal filtering, both single
and multiprocessor spectral analysis devices can be used in these applications. Since these
spectrum analyzers subject the processed radio signals to the Fourier transform, we will call
them Fourier processors.
Frequency Selective Surfaces with Cross-shaped Aperture Elements
Authors: KOMAROV Vyacheslav V. , MESHCHANOV Valery P.
Published: February 2024

In modern microwave and terahertz technology, one of the most hot topic areas of
using frequency selective surfaces is frequency filtering of electromagnetic signals. Such
structures make it possible to reduce the weight and dimension parameters of the radio
equipment, which is especially important for onboard systems of aviation and space technology
operating under harsh environment, which imposes high-reliability requirements on the units
and components of these systems. One of the trends in the development of filtering devices of
various types and different element bases has recently become the design of broadband and
ultra-wideband, as well as narrowband and ultra-narrowband systems.

Freestanding frequency selective surfaces with cross-shaped aperture elements are investigated
numerically and experimentally in the present chapter. Transmission characteristics of such
two-dimensional periodic structures as a function of sizes are analyzed using numerical
methods.Employing the conjugate-gradient method narrowband filters have been developed
and optimized. The results of measurements carried out in the present study agree well with the
obtained theoretical data.
Equivalent Mode Representation as the Basis for the Analysis and Synthesis of Symmetric Microwave Networks
Authors: ARISTARKHOV Grigory M.
Published: February 2024

Symmetrical reactive bipolar networks, which include microwave filters, constitute
the most commonly used class of passive electrical circuits in practice. This chapter develops
analytical models of these circuits in relation to their implementation on the basis of multi-wire
systems of coupled microstrip lines. Such systems are characterized by the inequality of the
residue mode phase velocities, which is due to the inhomogeneity of the substrate-air medium.
The substitution networks for this type of symmetric network are defined as an equivalent mode
representation, which forms the basis for the analysis and synthesis of high-selective filters.
The operating principle of these filters is built upon the inequality effect of residue modes phase
velocities. The relationship between the amplitude-frequency response and the group delay time
of symmetric networks of both minimum phase and non-minimum phase types has been
revealed.
Tactics of Virtual Memory and Trans Inscrutability in the Works of Wu Tsang
Authors: Kang Stephanie
Published: February 2024

In her art and research, the artist Wu Tsang poses the question: “Whose voices are heard, whose are silenced?” By incorporating her own perspective as a trans person into her works, Tsang utilizes virtual media to reveal alternative interpretations of the past, and in turn, create new trajectories for the future. Her film Duilian specifically rewrites the story of Qiu Jin—a renowned Chinese feminist poet and revolutionary hero of the Qing dynasty—as a trans narrative. Set in a world that blurs global, temporal, and linguistic boundaries, the film merges historical research with imaginative thinking to uncover the trans stories that have been lost or hidden through time. Through an in-depth analysis of Duilian, this article will situate the film within Tsang’s larger oeuvre to demonstrate how the artist embodies Homay King’s concept of “virtual memory” and Vivian L. Huang’s notion of “inscrutability” to traverse the past, present, and future, continually implementing trans tactics as a means of re-historicization, safety, and survival.
Here Comes the Hurricane
Authors: Jose Luis Benavides
Published: February 2024

This two-section article and interview with Jesús Hilario-Reyes, a queer, non-binary, Afro-Caribbean artist, explores their artwork to connect trans new media histories to contemporary trans Chicanx scholarship via recent notions on “glitch” and “stitch.” The introduction connects Hilario-Reyes’s uprootedness to trans thoughts on “the cut” and trans Chicanx scholar Francisco Galarte’s concept of “Brown transfiguration.” In Section One, Hilario-Reyes discusses their new media practices in relation to land, water, displacement, and diasporic disembodiment. The interview in Section One reveals their experiences with migration, as they reflect on their 3D animated work about Puerto Rico's post-Hurricane Maria flooding, and their role as a DJ creating queer Black space. Section Two delves deeper into their 3D art and music as a healing response to displacement, mourning, and “destierro” (being ripped from one's homeland). Hilario-Reyes’s creativity, expressed through 3D animations, performance, and sound, becomes an embodied and world-building practice infused with resistance and queer Black sovereignty. Their perspectives on "glitch, love, and storms" offer adjacent strategies to resistance optics, addressing the visibility/invisibility dynamics inherent in transphobia and white supremacy. Their understanding of climate change's white supremacist root cause affecting Puerto Rico leads to a transformation of the disembodying effects of systemic violence through trans and Black-informed gestures. Through Hilario-Reyes’s 3D animations and video games, the article connects their work to larger trans scholarship, new media, and trans video game histories. Embodying non-binary and Afro-Caribbean thought, Hilario-Reyes re-engages the body, love, humanness, and their multiple possible selves, turning systemic violence's cataclysmic failures into trans and Afro-Caribbean liberation.
Nightmares and Dreams on Progesterone: Trans* Embodiment and Intermedia
Authors: D'Andriole Lorelei
Published: February 2024

This essay theorizes the connection between trans* embodiment and intermedia, using historical intermedia practice and score-based creative practices by artists such as Yoko Ono, CA Conrad, Pauline Oliveros, Dick Higgins, and Allan Kaprow, as precedent. This paper describes foundational thought to my work as a trans* intermedia artist and serves as an introduction to Nightmare and Dreams on Progesterone: Action Art Scores for Trans Becoming; a text work of 150 poetic action art scores designed for, and birthed from, trans* becoming. Each score is generated from dream journal entries translated into instructions that complicate the art/life divide. As I began taking progesterone as part of my hormone replacement therapy, I started experiencing vivid dreaming as a side effect. As my body changed, so did my dreams. These dreams, from my own trans* subconscious and altered by transsexual action, often directly engage with my identity or arts practice as subject matter. When translated, the scores are written poetically and have a diverse range of abstraction, for example:

Score #77: Fellowship

Three queer people talk about visibility The most beautiful woman in costume makeup Takes several ladders to climb towards

 

Score #58: Insane Clown Posse

Come out to your family

 

Score #69: Huge

A trans woman Surrounded by other trans women All bathing

I believe avant-garde art practices can be liberatory for trans* bodies and that this methodology and these performances have the potential to be instructional for other trans* people for coming into their identity. This introduction provides an intimate portrait of myself as an artist, including biographical information on my Hormone Replacement Therapy (HRT) journey and how it has affected my creative practice.
Glitch as a Trans Representational Mode in Video Games
Authors: Gass Arianna (Ari)
Published: February 2024

Following recent work by transgender studies scholars that has questioned the relationship between queer theory and trans studies, this essay considers how glitch video games, which have previously been considered to be part of the “queer games movement,” use the glitch as a way of representing transgender life. I survey three glitch games, Problem Attic (2013, Liz Ryerson), Strawberry Cubes (2015, Loren Schmidt), and Anatomy (2016, Kitty Horrorshow)—each of which uses the glitch as an expressive visual aesthetic, remediating the analog artifacts of signal noise or error as a sonic and visual quality, as well as a game design principle. These games place an emphasis on the body as that which glitches, exploring the bad feelings of trans embodiment, including dissociation and dysphoria, as well as demonstrating how the glitched body can be both desired and transformative. In the final section, this essay considers how transgender artists and the ways their work foregrounds glitch as an operation of the body are integral not only to glitch art history, but also to video game development more widely, exploring the influence of glitch aesthetics and game design in Pony Island (2016), a glitch video game by cisgender designer, Daniel Mullins.
Trans/Locatability: Performing Public Appearance in Locative Media
Authors: Gates Wesleigh
Published: February 2024

The promises and perils of visibility dominate many contemporary conversations about transgender life; this essay considers the ways in which locatability works alongside visibility to regulate the sphere of public appearance, informing who can safely appear and in what spaces they can or cannot do so. The locative performance Appear to Me (2020), written by gender-expansive artist eppchez yo-sí yes for the Philadelphia company Swim Pony, shows how such performance can challenge dominant constructions of location that involve the violent displacement of marginalized populations, as well as locative technologies—such as the Global Positioning System—that help create and sustain these constructions. Through a smartphone app that uses GPS to trigger audio cues, Appear to Me guides listeners along the Delaware River Trail in South Philadelphia, where they encounter the voices of people displaced from the waterfront, including street queens, houseless queers, and the land’s Indigenous Lenape inhabitants. I discuss how the performance both engages the politics of appearance on the textual level and performs new possibilities for appearance through its appropriation of GPS technology. In doing so, it enacts a trans epistemology of location I name trans/locatability: a multiply-emplaced, gender-expansive position of safety and solidarity that asserts the right of all bodies to appear in public without harm.
// May your rage inform your actions: Embodying the monster and trans nonbinary praxis in creative coding
Authors: Acierto Alejandro t. , Duffy KT
Published: February 2024

This project is presented as a critical call and response developed from texts initially written and assembled by KT Duffy, seen here as italicized portions of this project. In what follows, we consider Susan Stryker’s formation of the monster as the impulse for a set of theorizations around the assemblage of non-binary trans processes and methods. Advocating the release of the monstrous to actualize collective liberation, we situate the glitch as an essential animating element, utilizing this “visual monstrosity of error and interruption” in solidarity with Abolition Feminism to scope out the ways technology is counter revolutionary. Reflecting on the objective portrayal of technology, we examine how its destruction does not cease for communities made marginalized, even as the field is diversified. Mining the spaces between lines of code, we illustrate that coding is no longer an esoteric field and that coding and coding education can no longer exist in a vacuum. Instead, it must be grounded in examining how histories of capitalism and racialized hierarchies continue to cause harm. Here, we map out a praxis of trans-coding that activates the monster and its inherited glitches as a tool of disruption spawned in the spaces between binaries. Finally, we situate trans-coding in solidarity with Abolition feminism, where, from this in-between space, it propels the explosion of normative mediations in service of not only speculation but as an actualization of an Abolition Feminism imaginary.
gender.network
Authors: Syzygy Sky
Published: February 2024

Gender.network is an artist project, a growing digital archive of flyers, photos, artwork, cartoons, letters, poems, ephemera, and other visual culture from the 1960s-90s, created by trans*, two-spirit, nonbinary, and trans-adjacent activists, organizers, and artists. The curation of this archive has been guided by hundreds of conversations and interviews with trans and queer elders, community members, archivists, and scholars. This essay reflects on the tension between the competing needs of the archive of “things” that this project is identifying and organizing, and the living communities that this project seeks to serve. As an attempt to bridge these two poles, this essay listens to some of the voices and strategies of the history of trans* visual and print culture.
Just Happy Flesh?
Authors: Adeyemi Kemi
Published: February 2024

A review of McKenzie Wark’s 2023 book, Raving.
Detection of SARS-CoV-2 variants distributed from March 2020 to May 2022 and their effect on the infection severity in Iraqi population
Authors: Ghazzi Jinan , Fadhil Hula , Abdul Hussein Thaer , Jabbar Zeyad
Published: February 2024

New SARS-CoV-2 variants appeared in late December 2020 as Mutations accumulated in the original virus. This study aimed to provide a local database about variants of COVID-19 circulating in the Iraqi population from 2020 to 2022 and the time of emergence of new strains each month since very few local studies have documented its existence in the country. Real-time reverse transcriptase polymerase chain reaction (rRT-PCR) assays were employed to 319 collected and analyzed nasal swabs to determine whether an infection had occurred. A sophisticated diagnostic kit that sorted the distinctive mutations was implemented to evaluate the variants. Results showed Younger patients were more likely to be infected with the Alpha variant (66 patients) than older people (43 patients).

Additionally, patients with wild-type infestations had more robust viral load and lower Ct threshold values, culminating in an increase in severity during infection with wild-type virus 26/32 (81.250). Meanwhile, 65/109(59.63%) of patients infected with the Alpha variant developed severe and critical illness and 51/84(60.71%)were infected with Delta or Delta plus variants. In conclusion, the Alpha variant had the highest infection percentage of 109(46.6%), followed by Delta or Delta plus variant 84(26.33%), Beta or Gamma variants 47(20.1%), Omicron variant 46(19.6%), and finally wild-type virus of 32(13.7%). February 2020 witnessed a preliminary finding of the wild-type, while the Alpha variant emerged in December 2020, Beta/Gamma variances were recognized in December 2020, Delta/Delta plus variances began in April 2021, and the Omicron variant debuted in March 2022.

Keywords: SARS-CoV-2, Mutation, rRT-PCR, Coronavirus disease 2019, TaqPath, cycle threshold (Ct) value
Diseño de un sistema de agitación para un biorreactor de 1m3 de capacidad para la producción de ácido glicérico a partir de glicerol por fermentación microbiana de Acetobacter tropicalis
Authors: Cabrera-Valle Daniel , Pérez Henry
Published: February 2024

This work presents the design of an agitation system for a 1m3 capacity bioreactor intended to produce glyceric acid (GA) through microbial fermentation of A. tropicalis using 20% v/v glycerol as the primary substrate. Building on previous studies that evaluated ideal conditions for glyceric acid production, initial data were utilized to identify the impeller type and perform subsequent calculations, including impeller Reynolds number, power consumption, and mixing time. Once the agitator type was specified, standard geometric relationships were employed to size components of the agitation system, such as tank size, baffle plates, and agitator dimensions. Power consumption calculations were compared with results from other studies on fermentation media with similar rheological characteristics. The agitator's power consumption for mixing 1m3 of medium was determined to be 8.35 kW, achieving 95% homogenization in 5.14 seconds, with a mixing time error of approximately 10%, operating at an agitation speed of 500 rpm.

Keywords: agitation system; glyceryc acid; bioreactor
Machine Learning Methods Using Artificial Intelligence Deployed on Electronic Health Record Data for Identification and Referral of At-Risk Patients From Primary Care Physicians to Eye Care Specialists: Retrospective, Case-Controlled Study
Authors: Young Joshua A , Chang Chin-Wen , Scales Charles W , Menon Saurabh V , Holy Chantal E , Blackie Caroline Adrienne
Published: February 2024

Background

Identification and referral of at-risk patients from primary care practitioners (PCPs) to eye care professionals remain a challenge. Approximately 1.9 million Americans suffer from vision loss as a result of undiagnosed or untreated ophthalmic conditions. In ophthalmology, artificial intelligence (AI) is used to predict glaucoma progression, recognize diabetic retinopathy (DR), and classify ocular tumors; however, AI has not yet been used to triage primary care patients for ophthalmology referral.

Objective

This study aimed to build and compare machine learning (ML) methods, applicable to electronic health records (EHRs) of PCPs, capable of triaging patients for referral to eye care specialists.

Methods

Accessing the Optum deidentified EHR data set, 743,039 patients with 5 leading vision conditions (age-related macular degeneration [AMD], visually significant cataract, DR, glaucoma, or ocular surface disease [OSD]) were exact-matched on age and gender to 743,039 controls without eye conditions. Between 142 and 182 non-ophthalmic parameters per patient were input into 5 ML methods: generalized linear model, L1-regularized logistic regression, random forest, Extreme Gradient Boosting (XGBoost), and J48 decision tree. Model performance was compared for each pathology to select the most predictive algorithm. The area under the curve (AUC) was assessed for all algorithms for each outcome.

Results

XGBoost demonstrated the best performance, showing, respectively, a prediction accuracy and an AUC of 78.6% (95% CI 78.3%-78.9%) and 0.878 for visually significant cataract, 77.4% (95% CI 76.7%-78.1%) and 0.858 for exudative AMD, 79.2% (95% CI 78.8%-79.6%) and 0.879 for nonexudative AMD, 72.2% (95% CI 69.9%-74.5%) and 0.803 for OSD requiring medication, 70.8% (95% CI 70.5%-71.1%) and 0.785 for glaucoma, 85.0% (95% CI 84.2%-85.8%) and 0.924 for type 1 nonproliferative diabetic retinopathy (NPDR), 82.2% (95% CI 80.4%-84.0%) and 0.911 for type 1 proliferative diabetic retinopathy (PDR), 81.3% (95% CI 81.0%-81.6%) and 0.891 for type 2 NPDR, and 82.1% (95% CI 81.3%-82.9%) and 0.900 for type 2 PDR.

Conclusions

The 5 ML methods deployed were able to successfully identify patients with elevated odds ratios (ORs), thus capable of patient triage, for ocular pathology ranging from 2.4 (95% CI 2.4-2.5) for glaucoma to 5.7 (95% CI 5.0-6.4) for type 1 NPDR, with an average OR of 3.9. The application of these models could enable PCPs to better identify and triage patients at risk for treatable ophthalmic pathology. Early identification of patients with unrecognized sight-threatening conditions may lead to earlier treatment and a reduced economic burden. More importantly, such triage may improve patients’ lives.