bluuebunny/crossref_metadata_2025_split huggingface dataset:
Augmentative and Alternative Communication in an Elementary School Setting: A Case Study
Authors: Walker Virginia L. , Chung Yun-Ching 
Published: December 2021

Purpose:
Although there is a strong evidence base supporting the use of augmentative and alternative communication (AAC) in school settings, the research-to-practice gap in this area remains a concern. Few studies have examined how AAC systems are implemented in school settings and whether these systems adequately promote communicative competence for students with complex communication needs. The aim of this case study was to better understand the ways in which elementary-age students with complex communication needs used AAC throughout daily routines.

Method:
Observations of five students, four receiving services under the category of autism and one under intellectual disability, in school settings were conducted to document the communication function, type of AAC systems used, and the times and activities during which AAC systems were accessible. In addition, supplemental interviews were conducted to understand the rationale for AAC implementation from the perspective of the special education teacher and speech-language pathologist.

Results:
Overall, findings from the observations and interviews indicated that a variety of AAC modes were utilized. Interactions represented a range of communicative functions, with the exception of social closeness, and were primarily observed during academic activities. However, there were some discrepancies between observations and interview data.

Conclusions:
Although these findings provide insight into how students with complex communication needs may use AAC in elementary school settings, more research is needed to explore AAC use across a range of students, classrooms, and schools. We present specific future research directions, along with implications and recommendations for AAC teams and researchers.
3‐D low numerical dispersion WLP‐FDTD method with artificial anisotropy parameters
Authors: Liu Gui‐Ying , Ma Ping , Tian Jing , Quan Jun , Chen Wei‐Jun 
Published: December 2021

AbstractBased on the weighted Laguerre polynomials (WLPs) and artificial anisotropic (AA) parameters, a 3‐D unconditionally stable finite‐difference time‐domain (FDTD) electromagnetic simulation approach is proposed. The implementation of WLPs in time domain effectively eliminates the time step and AA parameters in spatial difference, resulting in suppressed numerical dispersion error. The monochromatic wave is employed as an example to obtain the numerical dispersion relationship of 3‐D AA‐WLP‐FDTD under AA parameter, in which reduced numerical dispersion error is observed. Compared with the conventional WLP‐FDTD technique, this approach demonstrates smaller numerical dispersion error under similar calculation cost.
Accurate fault location method for distribution network in presence of DG using distributed time‐domain line model
Authors: Mohajer Faeze , Sadeh Javad 
Published: December 2021

AbstractIn this paper a novel technique is presented for fault location in distribution networks in the presence of distributed generators (DGs). The proposed approach uses recorded voltage and current at the beginning of feeder and DG terminals. This method is based on transient state data, and due to presence of high frequencies in this state, to achieve high accuracy it utilizes the distributed time‐domain (DTD) line model. The fault location problem is formulated as an optimization problem and is solved using Genetic Algorithm (GA). Through modal transformation, in addition to locate the symmetrical three‐phase to ground (3LG) faults, the location of asymmetrical faults including single line to ground (SLG) and double line (LL) faults can also be determined. The effects of fault distance, fault resistance and fault inception angle on the accuracy of the proposed algorithm have also been investigated. A solution is also proposed to overcome the multi‐response problem. The simulations are conducted and the results are obtained via PSCAD and MATLAB softwares, respectively. The effectiveness of the proposed approach has been verified using the modified IEEE 34‐node test feeder under different fault conditions. The simulation results demonstrate the high efficiency and accuracy of the proposed method.
A feed‐forward framework integrating saliency and geometry discrimination for shadow detection in SAR images
Authors: Li Haixiang , Yu Xuelian , Zou Lin , Zhou Yun , Wang Xuegang 
Published: December 2021

AbstractShadow has been increasingly a kind of significant aid information for object extraction and scene interpretation in synthetic aperture radar images, which makes SAR shadow detection an important issue. In this paper, we propose a feed‐forward framework integrating saliency and geometry discrimination for shadow detection in SAR images. We firstly develop a global contrast based shadow saliency model to extract suspected shadows. Considering that such suspected regions mostly contain some non‐shadow areas, a discrimination strategy based on geometric relationships between objects and shadows is designed to remove falsely detected areas. Then the remaining regions become the final shadow detection results. Several experiments are carried out on images from two real datasets, Moving and Stationary Target Acquisition Recognition and MiniSAR, to evaluate the performance of our method. From the perspectives of three commonly used metrics, the proposed algorithm comprehensively outperforms two other classic methods, presenting reliable shadow detection ability. Moreover, the detection results of the two classic methods are significantly enhanced in controlling false alarms after the discrimination module is introduced. The results demonstrate that our algorithm is practically applicable to shadow detection in SAR images, and the discrimination strategy can be flexibly extended for related tasks.
The BINGO project
Authors: Costa Andre A. , Landim Ricardo G. , Novaes Camila P. , Xiao Linfeng , Ferreira Elisa G. M. , Abdalla Filipe B. , Wang Bin , Abdalla Elcio , Battye Richard A. , Marins Alessandro , Wuensche Carlos A. , Barosi Luciano , Brito Francisco A. , Queiroz Amilcar R. , Villela Thyrso , Fornazier Karin S. F. , Liccardo Vincenzo , Santos Larissa , dos Santos Marcelo V. , Zhang Jiajun 
Published: December 2021

Context. The 21 cm line of neutral hydrogen (H I) opens a new avenue in our exploration of the structure and evolution of the Universe. It provides complementary data to the current large-scale structure (LSS) observations with different systematics, and thus it will be used to improve our understanding of the Λ cold dark matter (ΛCDM) model. This will ultimately constrain our cosmological models, attack unresolved tensions, and test our cosmological paradigm. Among several radio cosmological surveys designed to measure this line, BINGO is a single-dish telescope mainly designed to detect baryon acoustic oscillations (BAOs) at low redshifts (0.127 < z < 0.449).
Aims. Our goal is to assess the fiducial BINGO setup and its capabilities of constraining the cosmological parameters, and to analyze the effect of different instrument configurations.
Methods. We used the 21 cm angular power spectra to extract cosmological information about the H I signal and the Fisher matrix formalism to study BINGO’s projected constraining power.
Results. We used the Phase 1 fiducial configuration of the BINGO telescope to perform our cosmological forecasts. In addition, we investigated the impact of several instrumental setups, taking into account some instrumental systematics, and different cosmological models. Combining BINGO with Planck temperature and polarization data, the projected constraint improves from a 13% and 25% precision measurement at the 68% confidence level with Planck only to 1% and 3% for the Hubble constant and the dark energy (DE) equation of state (EoS), respectively, within the wCDM model. Assuming a Chevallier–Polarski–Linder (CPL) parameterization, the EoS parameters have standard deviations given by σw0 = 0.30 and σwa = 1.2, which are improvements on the order of 30% with respect to Planck alone. We also compared BINGO’s fiducial forecast with future SKA measurements and found that, although it will not provide competitive constraints on the DE EoS, significant information about H I distribution can be acquired. We can access information about the H I density and bias, obtaining ∼8.5% and ∼6% precision, respectively, assuming they vary with redshift at three independent bins. BINGO can also help constrain alternative models, such as interacting dark energy and modified gravity models, improving the cosmological constraints significantly.
Conclusions. The fiducial BINGO configuration will be able to extract significant cosmological information from the H I distribution and provide constraints competitive with current and future cosmological surveys. It will also help in understanding the H I physics and systematic effects.
Estudo antropométrico tomográfico do quadril em uma população regional brasileira
Authors: Busato Thiago Sampaio , Milan Taiuã Verdasca , Matioski Filho Gladyston Roberto , Godoi Lucas Dias , Morozovski Marcelo Gavazzoni , Capriotti Juan Rodolfo Vilela 
Published: December 2021

Resumo
Objetivo Determinar a antropometria média do quadril de uma população regional brasileira através de medidas obtidas pela tomografia axial computadorizada (TAC).
Método Análise analítico-descritiva, retrospectiva, de medidas coxofemorais de 200 TACs do abdômen de pacientes atendidos em um centro médico. Foram selecionados aleatoriamente exames que permitissem a aferição de 30 medidas antropométricas previamente definidas. Os dados foram estatisticamente analisados e comparados quanto a sexo e idade.
Resultados A prevalência de displasia do quadril foi de 6%. Sinais sugestivos de impacto fêmoro-acetabular foram vistos em 26% dos casos. A análise dos resultados no grupo acima de 50 anos demonstrou medidas significativamente maiores dos: setores horizontais do acetábulo, do ângulo centro-borda e do arco acetabular, acompanhados de menor índice de extrusão, ângulo cérvico-diafisário e offset vertical. Algumas medidas foram significativamente diferentes em função do sexo: o ângulo centro-borda lateral (µ = 35.5°) e o arco acetabular (µ = 68.7°) se mostraram maiores no sexo feminino. No grupo masculino, foram maiores o índice de extrusão (µ = 16%), o offset lateral (µ = 38,3mm), a profundidade (µ = 19,5 mm) e o diâmetro do colo (µ = 26,4 mm).
Conclusão O presente estudo caracterizou a antropometria do quadril de uma população brasileira. Demonstrou ainda diferenças morfológicas significativas do quadril entre diferentes faixas etárias e sexos.
Artificial Intelligence: A New Tool in Oncologist's Armamentarium
Authors: Talwar Vineet , Chufal Kundan Singh , Joga Srujana 
Published: December 2021

AbstractArtificial intelligence (AI) has become an essential tool in human life because of its pivotal role in communications, transportation, media, and social networking. Inspired by the complex neuronal network and its functions in human beings, AI, using computer-based algorithms and training, had been explored since the 1950s. To tackle the enormous amount of patients' clinical data, imaging, histopathological data, and the increasing pace of research on new treatments and clinical trials, and ever-changing guidelines for treatment with the advent of novel drugs and evidence, AI is the need of the hour. There are numerous publications and active work on AI's role in the field of oncology. In this review, we discuss the fundamental terminology of AI, its applications in oncology on the whole, and its limitations. There is an inter-relationship between AI, machine learning and, deep learning. The virtual branch of AI deals with machine learning. While the physical branch of AI deals with the delivery of different forms of treatment—surgery, targeted drug delivery, and elderly care. The applications of AI in oncology include cancer screening, diagnosis (clinical, imaging, and histopathological), radiation therapy (image acquisition, tumor and organs at risk segmentation, image registration, planning, and delivery), prediction of treatment outcomes and toxicities, prediction of cancer cell sensitivity to therapeutics and clinical decision-making. A specific area of interest is in the development of effective drug combinations tailored to every patient and tumor with the help of AI. Radiomics, the new kid on the block, deals with the planning and administration of radiotherapy. As with any new invention, AI has its fallacies. The limitations include lack of external validation and proof of generalizability, difficulty in data access for rare diseases, ethical and legal issues, no precise logic behind the prediction, and last but not the least, lack of education and expertise among medical professionals. A collaboration between departments of clinical oncology, bioinformatics, and data sciences can help overcome these problems in the near future.
A Case of İntrapancreatic Accessory Spleen Mimicking a Pancreatic Metastasis on the 18F-FDG PET/CT Scan: A Case with Breast Cancer
Authors: Yıldırım Mustafa , Artas Hakan 
Published: December 2021

AbstractThe accessory spleen is a focus of splenic tissue which is separated from the main of the spleen. Although accessory spleens are generally recognized on computed tomography (CT), intrapancreatic accessory spleen (IPAS) may be mistaken for other pancreatic tail lesions. We report a case of IPAS mimicking a pancreatic metastasis on the 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). A 41-year-old with diagnosed breast cancer (invasive ductal carcinoma) woman patient underwent an 18F-FDG PET/CT for metastasis screening and staging. 18F-FDG PET/CT showed a focal uptake in the pancreatic tail. The patient underwent a contrast-enhanced CT and magnetic resonance imaging (MRI) for lesion characterization. The density and intensity of lesion were similar to spleen on all phases and all sequences. The lesion was evaluated as IPAS. The diagnosis was confirmed by endoscopic ultrasound (EUS) biopsy. A case of IPAS positive at 18F-FDG PET/CT could not found in the literature. We present a case of IPAS mimicking a pancreatic metastasis positive at 18F-FDG PET/CT.
Trauma-Associated Tension Pneumocephalus with Characteristic Mount Fuji Sign—Case Report
Authors: Khandelwal Utkarsh , Ajayababu Anuj , Sinha Tej Prakash , Bhoi Sanjeev 
Published: December 2021

AbstractTension pneumocephalus is a rare and life-threatening neurosurgical emergency in the setting of blunt or penetrating head trauma, especially in those with craniofacial fractures, which emergency physicians should be aware about. Early identification and appropriate treatment measures including supine positioning, 100% oxygen via mask, early neurosurgery consultation and, if required, operative intervention are paramount to optimal neurological and survival outcome. Definitive diagnosis requires imaging usually in the form of computed tomography (CT) head and serial monitoring of neurological status, optic nerve sheath diameter measurement and repeat imaging, essential to identify patients who might have features of increased pressure on brain matter, which could lead to adverse neurological and clinical outcomes. We present two cases of tension pneumocephalus with the characteristic Mount Fuji sign on CT head, who were managed nonoperatively with optimal neurological outcome. In patients with severe head or maxillofacial trauma presenting to emergency department, CT should be evaluated for signs of tension pneumocephalus, and such patients need to be closely observed for complications of pressure effect on brain matter to ensure optimal neurological and survival outcomes.
Bilateral Submandibular Gland Aplasia: An Unusual Cause of Sublingual Swelling—The Role of Imaging in Patient Management
Authors: Thimmappa Srividya B , Suman Abhishek , Dixit Rashmi , Garg Anju 
Published: December 2021

AbstractThere are very limited reports of aplasia of bilateral submandibular glands. We report the case of a 55-year-old male who presented with nontender palpable sublingual masses. On computed tomography and magnetic resonance imaging, bilateral submandibular gland aplasia and compensatory hypertrophy of bilateral parotid and sublingual glands were seen with herniation of hypertrophied sublingual glands through the bilateral mylohyoid muscles presenting as palpable sublingual region masses. Additional finding of bilateral accessory parotid glands was also noted. Prolapsed hypertrophied sublingual glands should be considered in patients presenting with bilateral sublingual masses to avoid unnecessary invasive procedures. We suggest radiological evaluation of such cases prior to any intervention.
Neuroendoscopic Navigated One-Step Removal of Crossed Ventricular Catheter Fragments: Technical Note
Authors: Calì Alessandro , Scalia Gianluca , Marrone Salvatore , Riolo Carmelo , Vasta Giuseppe , Umana Giuseppe Emmanuele , Cicero Salvatore , Iacopino Domenico Gerardo , Nicoletti Giovanni Federico 
Published: December 2021

Abstract
Introduction Neuroendoscopy plays an important role in minimally invasive neurosurgery. The authors reported an interesting case of a pediatric patient with multiple ventriculoperitoneal shunt (VPS) revision surgeries, presenting with VPS infection and with two crossed intraventricular floating catheter fragments, successfully removed through a neuroendoscopic navigated one-step procedure. A literature review regarding this exceedingly rare condition has also been discussed.
Case Description An 11-year-old female patient with a history of congenital hydrocephalus was admitted to the emergency department with symptoms of intracranial hypertension, psychomotor agitation, and tetraparesis. She had a history of previous multiple VPS revisions. She had an urgent brain computed tomography scan that documented hydrocephalus; the VPS's intraventricular catheter tip was sited at the level of the right frontal horn. Two small floating catheter fragments, not connected to the VPS, were identified: the first close to the right lateral ventricle at the level of the right occipital horn, the second one between the right occipital horn and the third ventricle. First, she underwent an exteriorization of the distal catheter for VPS. Cerebrospinal fluid examination documented hyperproteinorrachia and a positive culture for Staphylococcus
aureus. Then a navigated right transfrontal endoscopic approach to the right lateral ventricle was performed extending to the previous burr hole and achieving a wide range of working angle with a rigid 0-degree lens endoscope. Intermittent irrigation generating convective flow was performed such as to mobilize the catheters tip gently upward, to remove them by grasping. Finally, a whole VPS replacement has been performed.
Conclusion Persistence of intraventricular floating catheter fragments can lead to subacute or chronic infections. Neuroendoscopic retrieval represents a safe and effective alternative to a more extensive and invasive surgical approach. However, the exact catheter tip identification, grasping, and removal can be difficult to achieve, due to the technical instrumentation characteristics and altered intraventricular anatomy in chronic congenital hydrocephalus. In our experience, endoscopic convective flow induction through saline irrigation can determine floating intraventricular catheter fragments movement aiming to their identification and subsequent successful endoscopic retrieval.
Imaging of Noncontact Anterior Cruciate Ligament Injuries and Associated Bone Marrow Contusion Patterns
Authors: Pringle Lauren , Wissman Robert D. 
Published: December 2021

AbstractAnterior cruciate ligament (ACL) tears are commonly associated with bone contusions. Bone contusions can lend important insight into increased risk for more subtle concurrent injuries based on common injury mechanisms and patterns, as higher energy trauma has been tied to patterns of specific bone contusions and concomitant injuries. Lateral compartment contusions are most common and occur in pivot shift injuries. Medial compartment contusions may represent a contrecoup mechanism after the initial lateral injuries. Patellotibial contusions require axial loading but are also typically seen in conjunction with lateral and medial compartment contusions. The differences in ACL injury mechanics and physiology as shown by imaging contusion patterns can help clinicians better identify and treat the concurrent associated injuries.
Blau Syndrome Complicated by Atypical Type IIa Takayasu Arteritis
Authors: Bikouli Efstathia Danai C. , Vazeou Andriani , Xatzipsalti Maria , Servos Georgios , Delis Dimitrios , Maritsi Despoina N. 
Published: December 2021

AbstractBlau syndrome (BS) is a rare, autosomal dominant monogenic autoinflammatory disease, usually presenting as a triad of symptoms (granulomatous dermatitis, uveitis, and nonerosive arthritis) and caused by gain-of-function mutations in the nucleotide oligomerization domain 2 (NOD2) gene. However, very few reports in children of copresence of BS with large vessel vasculitis exist. We hereby describe a case of BS associated with clinical features of Takayasu arteritis. An 8.5-year-old boy presented with hypertension, cardiac insufficiency, arthritis, and ocular disease. Among other investigations, he underwent cervical and chest computed tomography and computed tomography angiography scans that revealed the presence of type IIa Takayasu arteritis lesions. Genetic analysis revealed a heterozygous mutation of NOD2 gene leading to the amino acid exchange Arg-587-Cys in the NACHT domain of the NOD2 protein (R587C) as pathogenic cause of BS. He received treatment with prednisolone, methotrexate, and infliximab (antitumor necrosis factor-α) in addition to antihypertensive medication with a favorable clinical response. Cases of BS should be investigated for the coexistence of Takayasu arteritis. However, further research is required to delineate a possible common pathogenic mechanism between the two clinical entities.
A Case of Postoperative SMART Syndrome in a Medulloblastoma Survivor
Authors: Cirjan Cristian , Jamal Ali , Mercier Philippe , Berkovich Rachel , Navalkele Pournima 
Published: December 2021

AbstractStroke-like migraine attacks after radiation therapy (SMART) syndrome is a rare neurological phenomenon characterized by reversible symptoms of headache, seizure, hemiparesis, and visual changes associated with a remote history of cranial irradiation. We describe a case of a medulloblastoma survivor, presenting with postoperative neurological deficits, along with neuroimaging findings and subsequent resolution of symptoms, highly suggestive of SMART syndrome. We have also reviewed the common epidemiological and diagnostic factors associated with this rare disease, as well as discussed pathophysiological mechanisms.