bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimal voltage angle for maximum torque per voltage control of induction machine in deep field‐weakening region
Authors: Lipcak Ondrej 
Published: April 2024

AbstractThis paper investigates the optimal stator voltage angle in a rotor flux‐oriented system of an induction machine drive, aiming to maximise machine torque while operating in a deep field weakening region. Here, torque maximisation leads to maximum torque per voltage control, as only voltage constraints are relevant in this region due to high back‐electromotive force. Previous studies have predominantly focused on field‐weakening operation and torque maximisation, assuming a constant synchronous speed. However, for a given rotor speed, the variation in the dq voltage components impacts the slip speed, thereby influencing the synchronous speed. Therefore, this paper proposes enhanced analytical expressions to address this limitation. It is shown that after a linearisation around a suitable operating point, a closed‐form algebraic equation for calculating the speed and parameter‐dependent optimal voltage angle for torque maximisation can be obtained. The theoretical analysis is supported by numerical and experimental results. The presented linearised expression is proven to be an effective tool for the analytical calculation of the optimal voltage angle, making it suitable for real‐time control applications. It is shown that the proposed approach achieves higher drive torque and efficiency than the conventional voltage component distribution.
Interrupted sampling repeater jamming suppression based on multiple extended complex‐valued convolutional auto‐encoders
Authors: Meng Yunyun , Yu Lei , Wei Yinsheng 
Published: April 2024

AbstractInterrupted sampling repeater jamming (ISRJ) with flexible modulation parameters and coherent processing gain seriously threatens the radar detection system. The jamming suppression and target detection performance of existing anti‐jamming methods are limited by strong noise and jamming signals. An ISRJ suppression method combining multiple extended complex‐valued convolutional auto‐encoders (CVCAEs) and compressed sensing (CS) reconstruction is proposed. For the different tasks of parameter estimation and signal denoising, the extended CVCAEs including a complex‐valued convolutional shrinkage network (CVCSNet) and a complex‐valued UNet (CVUNet) are developed. Based on the time‐domain discontinuity of ISRJ signals, the CVCSNet is first used to directly estimate the parameters representing signal components and extract jamming‐free signals from received signals. Then, the extracted signals are denoised using the CVUNet. After that, relying on the denoised signals and the frequency sparsity of de‐chirped target signals, a CS model is established and solved to recover complete target signals for jamming suppression. Utilising the advantages of deep neural networks in weak feature extraction and signal representation, the CVCSNet and CVUNet can effectively improve the signal extraction accuracy and alleviate the limitation of noise on target signal reconstruction. Experimental results verify that the proposed method has superior ISRJ suppression performance and is robust to varying signal‐to‐noise ratios, jamming‐to‐signal ratios and jamming parameters.
A new approach for the numerical calculation of diffraction patterns using starshades
Authors: Aime C. , Prunet S. , Theys C. , Ferrari A. , Lantéri H. 
Published: April 2024

Context.We studied the imaging of exoplanetary systems using starshades, which are externally occulted coronagraphs in space.Aims.We provide a new method for precisely evaluating the stray light due to the star and a rapid calculation of the point spread functions in the presence of vignetting effects from the external occulter. Our study used shaped occulter configurations published in the literature, in particular, the SISTER NI2 and NW2 systems.Methods.The wavefront at the telescope aperture was computed using the classic Fresnel filtering method. The Fourier transform of the occulter was obtained with the highest possible precision using an approach initially developed for radio antennas, known as the polygonal shape factor.Results.We show that the Fresnel diffraction for a finite spatial field operates at very low frequencies only, and that it is sufficient to calculate the Fourier transforms there. Diffraction patterns computed numerically fully agree with theoretical predictions. The central parts of diffractions of petal and apodized occulters are identical over a large central area that increases in size with the number of petals. These diffraction patterns are used to compute the point spread functions. We computed the stray light for a non-point source star; this shows that starshades are not sensitive to star leakage, with a star diameter limit for a given configuration. We also computed signal-to-noise ratios for a perfect experiment limited by photon noise.
Shoulder and Knee Arthroscopy Access Point: Prospective Comparison of
Sonographic and Palpatory Detection – Which Method is Better for
Novices?
Authors: Weimer Andreas Michael , Weimer Johannes M. , Berthold Svenja , Stein Stephan , Müller Lukas , Buggenhagen Holger , Balser Gerd , Stankov Kay , Sgroi Mirco , Schmidmaier Gerhard , Kloeckner Roman , Schamberger Christian 
Published: April 2024

Abstract
Purpose Arthroscopy is one of the most common interventions in
orthopedics. Hence it is important to train users early in order to ensure the
safest possible identification of access portals (AP). This prospective study
aimed to compare a palpatory (PalpMethod) with a sonographic (SonoMethod) method
for AP location in the shoulder and knee joints.
Materials and
Methods The study included trainee doctors (n=68) attending workshops
(lasting approx. 90 minutes). In these workshops a teaching video initially
demonstrated the PalpMethod and SonoMethod of AP identification. An experienced
operator first marked the access portals on the test subject with a UV pen
(determined ideal point [DIP]). Adhesive film was then affixed to the puncture
regions. Subsequently participants marked on shoulders and knees first the point
determined by palpation, then the point determined by sonography. Analysis
involved DIP visualization with a UV lamp and employed a coordinate system
around the central DIP. In addition, participants completed an evaluation before
and after the workshop.
Results The analysis included 324 measurements
(n=163 shoulders and n= 161 knees). The majority of participants had not
previously attended any courses on manual examination (87.9%) or musculoskeletal
ultrasound (93.9%). Overall, the markings participants made on the shoulder
using the SonoMethod were significantly closer to the DIP than those made by the
PalpMethod (Palp 18.8mm ± 14.5mm vs. Sono 11.2mm ± 7.2mm; p<0.001). On the
knee, however, the markings made by the PalpMethod were significantly closer to
the DIP overall (Palp 8.0mm ± 3.2mm vs. Sono 12.8mm ± 5.2mm; p<0.001).
Conclusion The results show that the SonoMethod produces more accurate markings
on the shoulder, while the PalpMethod is superior for the knee.
Successful Treatment of Massive Pulmonary Embolism in Pregnancy with Catheter-Directed Embolectomy
Authors: Truong Rachel D. , Cheyney Sarah , Vo Mai , Garcia Joel , Desai Neeraj N. , Kropf Jacqueline , Hassanein Hatem 
Published: April 2024

Abstract
Introduction Pulmonary embolism (PE) is associated with approximately 10.5% of maternal deaths in the United States. Despite heightened awareness of its mortality potential, there islittle data available to guide its management in pregnancy. We present the case of a massive PE during gestation successfully treated with catheter-directed embolectomy.
Case Presentation A 37-year-old G2P1001 presented with a syncopal episode preceded by dyspnea and chest pain. Upon presentation, she was hypotensive, tachycardiac, and hypoxic. Imaging showed an occlusive bilateral PE, right heart strain, and a possible intrauterine pregnancy. Beta-human chorionic gonadotropin was positive. She was taken emergently for catheter-directed embolectomy. Her condition immediately improved afterward. Postprocedure pelvic ultrasound confirmed a viable intrauterine pregnancy at 10 weeks gestation. She was discharged with therapeutic enoxaparin and gave birth to a healthy infant at 38 weeks gestation.
Conclusion Despite being the gold standard for PE treatment in nonpregnant adults, systemic thrombolysis is relatively contraindicated in pregnancy due to concern for maternal or fetal hemorrhage. Surgical or catheter-based thrombectomies are rarely recommended. Limited alternative options force their consideration, particularly in a hemodynamically unstable patient. Catheter-directed embolectomy can possibly bypass such complications. Our case exemplifies the consideration of catheter-directed embolectomy as the initial treatment modality of a hemodynamically unstable gestational PE.
Aeromonas hydrophila Infection following Leech Therapy for the Treatment of Nipple–Areola Complex Congestion after Breast Reduction: A Case Report
Authors: Torresetti Matteo , Peltristo Benedetta , Taddei Francesco Mauro Junior , Di Benedetto Giovanni 
Published: April 2024

AbstractSeveral strategies for the management of venous congestion of the nipple–areola complex (NAC) after reduction mammaplasty have been proposed. Among these, hirudotherapy represents an ancient but still effective method, even though the risk of infections related to leeches should be considered. We report a peculiar case of breast infection and sepsis after leech therapy in a patient who underwent a reduction mammaplasty. A prompt surgical debridement of the wounds and necrotic tissues associated with targeted antibiotic therapy led to a fast improvement of clinical conditions, and partial preservation of the NAC was obtained. Accurate knowledge of the clinical presentation of soft tissue infections related to leeching allows for an early diagnosis and would serve as a warning for surgeons who approach such breast cosmetic procedures.
Speech Task Force and Quality of Life after Surgery in Children with Cleft Lip and Palate: Limitation of Professionals
Authors: Prathanee Benjamas , Thanawirattananit Panida , Surit Phrutthinun , Mitkitti Ratchanee , Makarabhirom Kalyanee 
Published: April 2024

Abstract
Background Shortage of speech and language therapists results in lack of speech services. The aims of this study were to find the effectiveness of a combination speech therapy model at Level IV: General speech and language pathologist (GSLP) and Level V: Specific speech and language pathologist (SSLP) in reduction of the number of articulation errors and promotion the quality of life (QoL) for children with cleft palate with or without cleft lip (CP ± L).
Methods Fifteen children with CP ± L, aged 4 years 1 month to 10 years 9 months (median = 76 months; minimum:maximum = 49:129 months) were enrolled in this study. Pre- and post-assessment included oral peripheral examination; articulation tests via Articulation Screening Test, Thai Universal Parameters of Speech Outcomes for People with Cleft Palate, Hearing Evaluation, The World Health Organization Quality of Life Brief_Thai (WHOQOL-BRIEF-THAI) version questionnaire for QoL were performed. Speech therapy included a 3-day intensive speech camp by SSLP, five 30-minute speech therapy sessions by a GSLP, and five 1-day follow-up speech camps by SSLP that provided four 45-minute speech therapy sessions for each child.
Results Post-articulation revealed statistically significant reduction of the numbers of articulation errors at word, sentence, and screening levels (median difference [MD] = 3, 95% confidence interval [CI] = 2–5; MD = 6, 95% CI = 4.5–8; MD = 2.25, 95% CI = 1.5–3, respectively) and improvement of QoL.
Conclusion A speech task force consisting of a combination of Level IV: GSLP and Level V: SSLP could significantly reduce the number of articulation errors and promote QoL.
Predicting Nipple Necrosis with a “Lights-on” Indocyanine Green Imaging System: A Report of Two Patients
Authors: Shaffrey Ellen C. , Moura Steven P. , Jupitz Sydney , Seets Trevor , Kawahara Tisha , Uselmann Adam , Lin Christie , Poore Samuel O. 
Published: April 2024

AbstractNipple–areolar complex (NAC) necrosis is a devastating complication in nipple-sparing mastectomies (NSMs) that significantly impacts patient's quality of life. The use of fluorescence angiography for intraoperative assessment of mastectomy skin flap perfusion in NSM has been successfully described and can be utilized to help guide surgical decision-making. Recently, a novel fluorescence-guided surgical imager was developed, OnLume Avata System (OnLume Surgical, Madison, WI), which provides intraoperative evaluation of vascular perfusion in ambient light. In this case report, we describe the use of OnLume fluorescence-guided surgery technology to help aid in clinical decision-making for two breast reconstruction cases with concern for intraoperative nipple hypoperfusion.
Double-Filtration Plasmapheresis and High-Dose Intravenous Immunoglobulin Therapy in a Case of Anti-M Alloimmunization
Authors: Yasuda Shun , Ono-Okutsu Miho , Fukuda Toma , Kyozuka Hyo , Fujimori Keiya 
Published: April 2024

AbstractHemolytic disease is a common cause of fetal morbidity and mortality. The anti-M blood cell alloantibodies are one of the most severe causes of fetal anemia and intrauterine death. Since no standard treatment method has been established for pregnant women, the management of this pathology is through conventional methods used for treating Rh blood-type alloimmunization. For the first time, we report a unique case wherein a pregnant woman who had intrauterine fetal death in two previous pregnancies with very low titers of anti-M antibodies had negative effects during very early pregnancy, which were successfully managed in her third pregnancy with a novel protocol. We aggressively managed the blood type (anti-M antibody) and blood platelet incompatibilities (anti-HPA-4b antibody) through combination therapy twice a week (46 cycles between 12 and 34 weeks) of double filtration plasmapheresis (DFPP) and high-dose γ-globulin (20–40 g/wk). An elective cesarean section was performed at 34 weeks, and a healthy neonate was born without detection of alloantibodies in the umbilical cord blood. Our report suggests that the combination of DFPP and intravenous immunoglobulin should be considered for the treatment of anti-M alloimmunization in pregnant women.
Assessing the Feasibility of a Two-Cohort Design to Assess the Potential of Homeopathic Medicinal Products to Reduce Antimicrobial Resistance in Turkeys (The HOMAMR Project)—Study Protocol
Authors: Baur-Bernhardt Silvia , Käsbohrer Annemarie , Doherr Marcus Georg , Meemken Diana , Sonnenschein-Swanson Lena , Stetina Birgit Ursula , Sommer Mary-Ann , Weiermayer Petra 
Published: April 2024

Abstract
Background Antimicrobial resistance (AMR) is a serious public health concern worldwide. The European Union requires a reduction in the use of antibiotics by 50% by 2030, with separate regulations on organic production that give preference to homeopathy and phytotherapy in organic farms before the use of conventional medicines (including antibiotics). We have therefore designed a two-phased project whose overarching aim is to investigate the potential role of homeopathic medicinal products (HMPs) in combating AMR in turkeys (the HOMAMR project): a two-cohort feasibility study using turkey-farm data that have been collected and analyzed retrospectively, followed by a prospective two-cohort study in turkey farms that would examine the impact of HMPs on changing antibiotic use.
Objective The objective of this paper is to describe the protocol for the first phase of HOMAMR, which is a study under field conditions to assess the feasibility of collecting data retrospectively about turkeys that have been managed conventionally only or with HMPs.
Methods Surveys performed on farms in Germany and Austria, including interviews with consenting farmers, will determine the feasibility of comparing retrospectively gathered data on antibiotic use and performance/production data in two cohorts of turkeys: (1) homeopathic treatment with conventional care (antibiotics) added if necessary or (2) conventional care (antibiotics) only. Co-primary outcomes to be studied are the amount of antimicrobial use and production period-related mortality. In addition, other production/performance parameters will be compared between the two treated cohorts.
Conclusion To our knowledge, this is the first feasibility study on the treatment of turkeys using homeopathy, and whose retrospectively obtained data will inform a prospective study that would examine the impact of HMPs on antibiotic use in commercial turkey raising, fattening and breeding production.
Clinical Study of 162 Cases of Peritonsillar Abscess Diagnosed by Contrast-Enhanced Computed Tomography
Authors: Saiki Tadahiko , Ogawa Teruhiro , Haruna Takenori , Kuroda Kazuaki 
Published: April 2024

AbstractIn this retrospective clinical study of peritonsillar abscesses, we reviewed the data of 162 patients (116 males and 46 females) with peritonsillar abscess aged 8 to 86 years (mean age, 37.0 years) who had been diagnosed by contrast-enhanced computed tomography (CT), hospitalized, and treated for the abscess between January 2017 and December 2022. The abscess occurred on the left side in 72 (44.4%) patients, on the right side in 80 (49.4%) patients, and bilaterally in 10 (6.2%) patients. The abscess was of the superior oval type on 85 (49.4%) sides, the superior cap type on 41 (23.8%) sides, the inferior oval type on 25 (14.5%) sides, and the inferior cap type on 21 (12.2%) sides. Among 111 patients, bacteriological examination of the abscess fluid for the causative bacteria yielded 78 causative strains, including 24 strains of aerobic bacteria, predominantly Streptococcus pyogenes (51.6%), and 47 strains of anaerobic bacteria; the remainder were mixed bacterial strains. Bacterial resistance rates to antibiotics were as follows: 5.8% for piperacillin, 3.4% for ceftriaxone, 2.6% for meropenem, 11.5% for clindamycin, 28.6% for levofloxacin, and 15.4% for minocycline. Of the 162 patients, 83 (48.3%) were treated by incision, 25 (14.5%) by puncture, 62 (36.0%) with antibiotics, and 2 (1.2%) via abscess tonsillectomy. The most frequently used antibiotics (87.2% cases) were ampicillin/sulbactam combined with clindamycin and/or dexamethasone. The peritonsillar abscess recurred in 14 (8.6%) patients, and the recurrence occurred within 3 months of the initial onset in 8 (57.1%) of these patients. In conclusion, contrast-enhanced CT should be performed to accurately diagnose the location, size, and shape of a peritonsillar abscess and select the optimal treatment.
The Effect of the Method of Canal Flare Index Calculation on Femoral Classification in Dogs: An Ex Vivo Study
Authors: Galetti Beatriz Maia , Andrade Caroline Ribeiro , Minto Bruno Watanabe , Dias Luís Gustavo Gosuen Gonçalves , Alcântara Brenda Mendonça , Hespanha Ana Carolina Valentim , Moi Tryssia Scalon Magalhães , Goes Letícia Santos 
Published: April 2024

Abstract
Objectives The aim of this study was to compare canal flare index (CFI) values obtained by different intracortical widths in the lesser trochanter and to evaluate their influence on femoral classification.
Methods Femur radiographic images were analysed by three evaluators that calculated the CFI using three different points in the lesser trochanter: proximal, midpoint, and distal.
Results There was no interobserver influence, but there was a difference in the CFI value and femoral classification according to the calculation method. The proximal region presents higher CFI values and only 4% of ‘Stovepipe’ femurs, while the distal region presents lower CFI values and 46% of ‘Stovepipe’ femurs.
Clinical Significance The variation in level of measurement can significantly alter femoral classification, which must be considered when the CFI is used in the surgical planning of total hip arthroplasty.
Pediatric Burn Teams: Moving from Multidisciplinary to Transdisciplinary
Authors: Romanowski Kathleen S. 
Published: April 2024

AbstractPediatric burn care has improved to the point where even patients with massive burns have a reasonable chance of survival. An important component of this success is the pediatric multidisciplinary burn team. The pediatric burn team is made up of all the disciplines that are required to provide optimal care of the patient as well as their family. The pediatric burn team in its initial iteration was multidisciplinary, with each discipline focusing on their own area without much overlap. However, over time the burn team has become more cooperative and interdisciplinary leading to improved outcomes for children with burn injuries. Ultimately, pediatric burn teams may be able to function in a transdisciplinary manner which would potentially allow for even more innovation in the care of burn patients.
Initial Pediatric Burn Management: A Practical Guide
Authors: Palmieri Tina L. 
Published: April 2024

AbstractChildren have an imperative to explore their environment to grow and develop, which puts them at risk for sustaining burn injury. Burn injury remains the third leading cause of injury-related death worldwide. Plastic surgeons, as experts in the evaluation and management of cutaneous injuries, are frequently called upon to evaluate and treat children with burn injuries. This article focuses on the unique physiologic aspects of children and how they impact initial evaluation and management of burn injury. Children are not “little adults,” and they have different airway, circulatory, and cutaneous systems. Understanding the signs of potential child abuse is important to avoid further child harm. Finally, recognition of the criteria for referral to a pediatric burn center is important to optimize both short- and long-term outcomes for patients and families.
Inhalation Injury
Authors: Erickson Michael J. , Enkhbaatar Perenlei , Lee Jong O. 
Published: April 2024

AbstractInhalation injury is a critical component of thermal injury that can significantly increase mortality in burn survivors. This poses significant challenges to managing these patients and profoundly impacts patient outcomes. This comprehensive literature review delves into the epidemiology, pathophysiology, diagnosis, classification, management, and outcomes of inhalation injury with burns.
Critical Care of the Pediatric Burn Patient
Authors: Naber Catherine , Sheridan Robert 
Published: April 2024

AbstractLife-saving pediatric burn care is often initiated in hospitals that are not designated as a pediatric burn center. Therefore, familiarity with critical care of pediatric burn patients is crucial for physicians working in all healthcare settings equipped to care for children. Management of airway, mechanical ventilation, preservation of ideal circulatory status, and establishment of vascular access in pediatric burn patients requires many unique considerations. This article aims to summarize important principles of critical care of children with significant burn injuries for review by physicians and surgeons working in hospitals designated as a pediatric burn center and those that stabilize these patients prior to referral.
Update on Hypermetabolism in Pediatric Burn Patients
Authors: Layon Sarah A. , Williams Austin D. , Parham Matthew J. , Lee Jong O. 
Published: April 2024

AbstractDespite advancements in pediatric burn care, the profound hypermetabolic response associated with severe burns remains a multifaceted challenge throughout the continuum of care. Understanding the various physiologic disturbances that constitute hypermetabolism is crucial for a thorough evaluation and for implementing appropriate surgical and nonsurgical interventions. In this article, we describe the pathophysiology and treatment of hypermetabolism in pediatric burn patients with a focus on reducing resting energy requirements, minimizing infection, and optimizing nutrition for patients undergoing frequent surgical intervention.