bluuebunny/crossref_metadata_2025_split huggingface dataset:
Neural network model applied to electromagnetic shielding effectiveness of ultra-light Ni/Cu coated polyester fibrous materials
Authors: Periyasamy Aravin Prince , Muthusamy Lekha Priya , Militký Jiri 
Published: May 2022

AbstractThe purpose of effective electromagnetic interference (EMI) shielding is to prevent EMI from smartphone, wireless, and utilization of other electronic devices. The electrical conductivity of materials strongly influences on the EMI shielding properties. In this work, mainly focus to predict the EMI shielding effectiveness on the ultralight weight fibrous materials by artificial neural network (ANN). Prior to the ANN modelling, the ultra-lightweight fibrous materials were electroplated with different concentration of Ni/Cu and then coated with different silanes. This work utilizes the algorithm to provide accurate quantitative values of EMI shielding effectiveness (EM SE). To compare its performance, the experimental and the predicted EM SE values were validated by root-mean-square error (RMSE), mean absolute percentage error (MAPE) values and correlation coefficient ‘r’. The proposed ANN results accurately predict the experimental data with correlation coefficients of 0.991 and 0.997. Further due to its simplicity, reliability as well as its efficient computational capability the proposed ANN model permits relatively fast, cost effective and objective estimates to be made of serving in this industry.
Surgical outcomes of unilateral lateral rectus recession versus recess-resect in children with convergence insufficiency type intermittent exotropia
Authors: Jang Yoon Kyung , Bae Seok Hyun , Choi Dong Gyu 
Published: May 2022

AbstractTo determine the efficacy of unilateral lateral rectus recession (ULR) for convergence insufficiency-type intermittent exotropia (CI-type IXT), we compared surgical outcomes following ULR and recess‒resect (RR) procedures for CI-type IXT. In this retrospective study, medical records of 57 children who underwent ULR (n = 30) or RR (n = 27) for CI-type IXT of less than 25 PD at distance with a postoperative follow-up of 6 months or more were reviewed. Surgical success was defined as an alignment between 10 PD exodeviation and 5 PD esodeviation at distance and near fixation. The postoperative exodeviation showed no significant difference between the two groups at the last follow-up. A significant reduction in the mean near-distance difference was achieved postoperatively in both groups: from 5.4 PD preoperatively to 2.5 at last follow-up after ULR, and from 8.2 to 2.4 after RR (both p = 0.001). However, this difference between ULR and RR was not statistically significant (p > 0.05). The success rate at the last follow-up was 63.3% for ULR and 70.4% for RR (p = 0.574). ULR was found to be an effective treatment for CI-type IXT, with similar surgical outcomes to RR.
End‐to‐end waveform level receiver with deep learning
Authors: Zhu Zhaorui , Yu Hongyi , Shen Caiyao 
Published: May 2022

AbstractNumerous researches on communication receiver design with deep learning algorithms have been implemented effectively recently. In this paper, an innovative scheme is proposed to construct an end‐to‐end neural network (NN) receiver to directly recover information bits from unsynchronized waveform sequences. Considering the correlation between samples, multiple bidirectional long‐short term memory (BiLSTM) layers to process oversampled signals. Then, shifted binary cross‐entropy (SBCE) function is devised to tackle the overfitting issue and eliminate instances with abnormal bit error rate (BER), which originate from standard binary cross‐entropy (BCE) loss function. Substantial simulation results demonstrate that the trained NN receiver can achieve theory BER values under excellent conditions for transceivers. Compared with traditional synchronization algorithms, the proposed method can obtain significant BER performance gain under harsh conditions, such as low oversample rate, small roll‐off factor, short frame length.
Distributed finite‐time formation control of multiple Euler–Lagrange systems under directed graphs
Authors: Li Yue , Yang Ruohan , Wang Meng , Zhu Xueping 
Published: May 2022

AbstractThis paper investigates the finite‐time formation problem of multiple Euler–Lagrange systems subject to model uncertainties and external disturbances under directed graphs. An adaptive distributed control approach is developed by integrating dynamic gain control and adaptive control based on the consensus theory and the finite‐time stability theory. Auxiliary scalar dynamics are constructed to facilitate dynamic gain design. It is shown that finite‐time formation can be achieved via the proposed non‐smooth controller characterized by fractional powers of the auxiliary dynamics, which is significantly different from most existing works on finite‐time controllers where fractional powers of system states are adopted. Moreover, continuity of the proposed controller is guaranteed by adjusting one control parameter, of which range is proven explicitly. In addition, dynamic surface control is improved to remove acceleration information from finite‐time controller design. In the end, the effectiveness of the proposed control approach is verified by numerical simulation.
Effects of shrink fitting on iron losses of a permanent magnet synchronous motor with an amorphous core
Authors: Zhu Longfei , Fan Bowen , Han Xueyan , Tang Renyuan 
Published: May 2022

AbstractIn order to investigate the effects of shrink fitting on the amorphous core, a test device is designed and the magnetisation and specific iron loss characteristics of the amorphous core are measured. The specific iron loss of amorphous core increases since the eddy current loss in the stator yoke increases significantly. The iron losses of the permanent magnet synchronous motor with the amorphous stator core in consideration of the shrink fitting effects on the specific iron loss are analysed by FEA.
Kannst Du sehen und hören, wie schlecht es mir gerade geht?
Authors: Uhlmann Carmen , Tschöke Stefan , Steinert Tilman , Schmid Petra 
Published: May 2022

ZusammenfassungNichtsuizidales selbstverletzendes Verhalten (NSSV) und Suizidversuche sind bekannte Merkmale der Borderline-Persönlichkeitsstörung, kommunikatives Verhalten ist dagegen kaum erforscht. Untersucht wurden Unterschiede zwischen Patient*innen mit und ohne NSSV sowie Unterschiede bei aktuellen Suizidversuchen bzgl. suizidaler Kommunikation und NSSV.In einer Sekundäranalyse wurden Angaben zu aktuellem und anamnestischem NSSV, Suizidversuchen, suizidaler Kommunikation und klinischer Symptomatik von 87 Patient*innen ausgewertet.Patient*innen mit und ohne aktuelle NSSV unterschieden sich nicht in anamnestischen Angaben, aber im Hinblick auf aktuelle Suizidversuche und suizidale Kommunikation. Bezogen auf den aktuellen stationären Aufenthalt zeigte sich, dass sich Patient*innen mit und ohne Suizidversuche deutlich in den Variablen NSSV (100 vs. 32,5 %) und suizidale Kommunikation (71,4 vs. 7,5 %) unterschieden.Aktuelle NSSV und suizidale Kommunikation sind von hoher Bedeutung für die Risikobewertung der aktuellen Suizidalität.
Late-Stage Functionalization for the Optimization of Reversible BTK Inhibitors
Authors: Krska Shane W. , Tyagarajan Sriram , Guiadeen Deodial , Streckfuss Eric , Gao Xiaolei , Buevich Alexei V. , Doss George , Liu Jian , Vachal Petr 
Published: May 2022

AbstractLate-stage functionalization (LSF) enables medicinal chemists to quickly explore structure–activity relationships (SAR) of novel analogues derived from a fully elaborated parent structure. Using several known C–H functionalization chemistries, we have systematically applied the LSF strategy to modify different regions of a Bruton’s tyrosine kinase (BTK) reversible inhibitor lead series. This approach allowed for broad SAR exploration across several key subunits of the molecule at positions that were previously difficult to explore with traditional synthesis, providing analogues with high potency and improved pharmacokinetic properties. This case study illustrates both the promise and the challenges associated with applying LSF to complex lead molecules.
Estudio radiológico simple de quiste óseo simple y aneurismático: Diagnóstico diferencial
Authors: Martabid Faride , Romero Matías , Burdiles Alvaro , Schulze Clara , Garcia Cristian 
Published: May 2022

Resumen
Objetivo Dar a conocer nuestra experiencia en el diagnóstico diferencial de los quistes óseos simple y aneurismático mediante estudio radiológico simple.
Materiales y métodos Se incluyeron pacientes menores de 20 años con radiografía de quiste óseo simple o aneurismático histológicamente confirmado pertenecientes al Registro Nacional de Tumores Óseos. Las radiografías fueron analizadas por dos radiólogos experimentados. Se compararon las variables demográficas de los pacientes, y las variables clínicas y radiológicas de ambos quistes.
Resultados Un total de 97 pacientes cumplieron los criterios de inclusión (65% presentaba quistes óseos simples y 35%, aneurismáticos). No se observaron diferencias en cuanto a la edad, al hueso comprometido, al tamaño de la lesión, a la expansión ósea, ni al adelgazamiento cortical. El género, la forma de presentación, la presencia de interrupción de la cortical, y la localización de la lesión en los ejes longitudinal y transversal del hueso son parámetros que podrían ser útiles en el diagnóstico diferencial de ambos quistes.
Discusión Los quistes óseos simple y aneurismático son lesiones benignas frecuentes que, de acuerdo con la literatura, serían difíciles de diferenciar únicamente con radiografía simple. La resonancia magnética permite una mejor caracterización anatómica, y aporta sensibilidad y especificidad al diagnóstico. Sin embargo, debe ser precedida por la radiografía simple, y su disponibilidad es limitada.
Conclusión Aun en centros con disponibilidad de resonancia magnética, la radiografía simple sigue siendo el estudio inicial de elección en el diagnóstico de tumores óseos. Ciertas características demográficas y radiográficas permiten orientar el diagnóstico diferencial inicial entre el quiste óseo simple y el aneurismático.
Lesiones del plexo braquial en adultos: Una revisión narrativa de la literatura
Authors: Ananias Joaquín , Pino Paula A. 
Published: May 2022

ResumenLa patología traumática del plexo braquial comprende un amplio espectro de lesiones potencialmente devastadoras para la funcionalidad de los pacientes. El objetivo del presente trabajo es realizar una revisión narrativa de la literatura enfocada en el diagnóstico y estudio de las lesiones del plexo braquial en adultos, además de entregar nociones básicas sobre el manejo de esta compleja patología.
Nivel de evidencia: Nivel V.
Manejo de fracturas conminutas del polo distal de la patela con asas verticales de alambre: Reporte de casos
Authors: Franulic Nicolás , Innocenti Piero , Laso José Ignacio , Olivieri Rodrigo , Gaggero Nicolás 
Published: May 2022

Resumen
Introducción Las fracturas conminutas del polo distal de la patela representan un desafío para el cirujano de rodilla, pues no existe un tratamiento estándar que permita una rehabilitación acelerada. Recientemente se han descrito la osteosíntesis y la reinserción del polo distal utilizando asas de alambre verticales.
Materiales y métodos Presentamos dos casos de fractura conminuta del polo distal de la patela resueltos con asas de alambre verticales y modificaciones de esta técnica.
Resultados Se realizó osteosíntesis del polo distal de la patela, y se logró una reducción radiográfica satisfactoria, lo que permitió una rehabilitación acelerada, con un rango de movilidad progresivo a tolerancia desde el día siguiente tras la cirugía. Los pacientes lograron recuperar el rango de movimiento completo a los dos y tres meses de operados, evolucionaron satisfactoriamente, sin complicaciones relacionadas a esta técnica y sus variaciones, y recibieron el alta médica tras cuatro meses de la reducción y osteosíntesis.
Discusión Las técnicas tradicionales para el manejo de fracturas del polo distal implican consideraciones especiales en la rehabilitación y complicaciones asociadas. Se utilizó la técnica de asas de alambres verticales en dos pacientes: en uno de ellos, el procedimiento fue complementado con sutura tipo Krackow; y, en el otro, con una placa para minifragmentos, lo que permitió una rehabilitación acelerada y retorno precoz a sus actividades laborales.
Conclusión El uso de asas de alambre vertical aparece como una técnica segura, que permite una rehabilitación acelerada y un reintegro laboral precoz.Nivel de evidencia: V.
Índice de recurrencia de tumor de células gigantes con curetaje y cementación
Authors: Rodríguez-Franco José Humberto 
Published: May 2022

Resumen
Objetivo Identificar la tasa de recurrencia de tumor de células gigantes (TCG) en pacientes tratados con curetaje y cementación con seguimiento mínimo de tres años.
Material y métodos Cohorte retrospectiva y observacional de pacientes con diagnóstico de TCG en estadios 1 y 2 de Enneking tratados con curetaje intralesional y cementación entre 1981 y 2011. Se registraron edad, sexo, región anatómica, y tiempo de recurrencia. Se utilizó estadística descriptiva con medidas de tendencia central y medidas de dispersión (desviación estándar) para variables cuantitativas, y porcentajes para variables cualitativas.
Resultados Entre 1981 y 2011, se identificaron 375 casos de TCG, de los cuales 141 (37,6%) fueron tratados con este método. El seguimiento fue de 48 a 240 meses, y la edad, de 27 ± 9 años; 45% de los pacientes eran mujeres, y 55%, varones, con una relación mujer:hombre de 1,2:1. El hueso más afectado fue la tibia (38%), seguida del fémur (32%), del húmero (16%), y del radio (10%). En 88,6%, la resección fue curetaje intralesional, y el resto, marginal. Hubo 15,7% de casos de TCG con fractura, y recidiva en 12,7%.
Discusión Se ha demostrado que este método de tratamiento reduce el riesgo de recurrencia por los efectos adyuvantes locales de la cementación acrílica. La recurrencia ocurre en los dos primeros años de seguimiento. Sin embargo, hay autores que respaldan que el margen quirúrgico es el único factor que influencia el riesgo de recurrencia local. La extensión extraósea del TCG no es contraindicación para curetaje intralesional y adyuvante con metilmetacrilato.
Conclusiones Reportamos tasa una de recurrencia similar a la de la literatura, siendo un recurso factible de reconstrucción de miembros.
Pontocerebellar Hypoplasia Type 9: A New Case with a Novel Mutation and Review of Literature
Authors: Abdelrahman Hanadi A. , Akawi Nadia , Al-Shamsi Aisha M. , Al-Gazali Lihadh , Ali Bassam R. 
Published: May 2022

AbstractPontocerebellar hypoplasia type 9 (PCH-9) is a very rare autosomal recessive neurodegenerative disorder. Affected infants present early with severe developmental delay, spasticity, with the unique magnetic resonance imaging picture of thin corpus callosum, atrophied pons, and cerebellum. It is caused by loss of function mutations in the AMPD2 gene, encoding for the adenosine monophosphate deaminase enzyme-paralog 2. This gene is expressed in different somatic tissues with high level of expression in cerebellum and its encoded enzyme catalyzes a critical step in de novo biosynthesis of purines and its deficiency in the developing neurons severely affects neuronal differentiation and cell viability. We clinically evaluated an Emirati patient presented with severe developmental and growth delay, as well as corpus callosum agenesis and atrophy of brainstem and cerebellum. We performed exome sequencing, Sanger sequencing, and segregation analysis to identify the genetic cause of the phenotype, followed by in silico and in vitro analysis. We identified the novel variant (NM_004037.9:c.1471G > A) in AMPD2 gene leading to a single amino acid substitution (p.Gly491Arg) in adenosine monophosphate deaminase-2 enzyme. This variant is predicted to be pathogenic using several in silico tools, and resulted in a decrease in the enzyme function in the patient's polymorphonuclear cells by 82% (95% confidence interval: 73.3–91.7%, p = 0.029) compared with the control. This data establishes that the affected child is affected by PCH-9. Furthermore, we review all reported cases in literature to summarize the main clinical features of this rare disease.
Comparative Law and Economics: Aspirations and Hard Realities
Authors: Garoupa Nuno , Ulen Thomas S 
Published: May 2022

Abstract
The fields of comparative law and law and economics have not had a happy or productive relationship. There are recent notable exceptions, such as comparative corporate governance, comparative constitutional law, and comparative competition law, but we are surprised by that limited cross-fertilization, given that so many other areas of law have found concepts from law and economics helpful and, in some instances, transformative. To try to understand this phenomenon, we first examine a twenty-five-year attempt by an international group of legal and economic scholars to foster interaction between the two fields. We then examine the recent history of the field of comparative economics and its successor field, transition economics, with mainstream economics to see if there are lessons from that literature that help to explain the relative paucity of a comparative law and economics literature. We next look at one notable recent attempt to use law and economics to examine a comparative law topic—the legal origins hypothesis. We also speculate on the extent to which the status of comparative law within American law schools and the overselling of the revolutionary aspects of law and economics might help to explain the frigid relations between comparative law and law and economics. Finally, we seek to propose a way forward in which each field can learn from the other, while also recognizing that we may be expecting too much too soon. The “silent artillery of time” may be the great spur to this particular scholarly cross-fertilization.
Using Criminal Law to Fight Corruption: The Potential, Risks, and Limitations of Operation Car Wash (Lava Jato)
Authors: Mota Prado Mariana , De Assis Machado Marta R 
Published: May 2022

Abstract
The Brazilian case of Lava Jato started with a scandal involving the massive malfeasance of corporate and political elites in relation to the state-run oil company Petrobras. The scope of the corruption was unprecedented. Politicians and Petrobras employees received hundreds of millions (if not billions) of dollars in kickbacks between 2004 and 2012. This Article focuses on the innovations promoted by the Lava Jato case. This new jurisprudence has not only played a key role in breaking a long-lasting tradition of impunity in Brazil, but it has also generated much controversy. On the one hand, many Brazilian citizens welcomed the changes, as they allowed judges to overcome the obstacles faced by courts in previous corruption cases. On the other hand, opponents argue that the case is not solidly grounded in rule of law principles. Instead of taking sides in this debate, this Article tries to reframe it by arguing that there may be benefits associated with these novel interpretations, but there may also be costs and risks.
Blood Pressure Variability Can Predict Carotid Sinus Reaction After Carotid Stenting
Authors: Ryu Jae-Chan , Bae Jae-Han , Ha Sang Hee , Chang Jun Young , Kang Dong-Wha , Kwon Sun U , Kim Jong S , Kim Bum Joon 
Published: May 2022

Abstract

BACKGROUND
Carotid stenting has become an important treatment for carotid disease. Carotid sinus reaction (CSR), a complication which is not uncommon and affects the outcome of carotid stenting. We investigated the predictors of CSR, including blood pressure variability and heart rate variability (BPV and HRV, respectively).

METHODS
We enrolled patients who underwent carotid stenting. CSR was defined as any episode of systolic blood pressure (SBP) &lt;90 mm Hg or heart rate (HR) &lt;60 beats/min after stent deployment or balloon inflation. BPV and HRV were measured before stent insertion and were represented by coefficient of variation (CoV) and SD. Multivariable logistic regression was performed to predict CSR.

RESULTS
Among the 176 patients, 61 (34.7%) patients showed CSR. Blood pressure and HR were measured 14 times before carotid stenting on average. The risk of CSR was independently associated with the use of longer stent (odds ratio: 1.08, 95% confidence interval: 1.00–1.16, P = 0.042) and increased SBP SD (1.07 [1.00–1.14], P = 0.048). Moreover, when the SBP parameter changed to SBP CoV, total stent length (1.08 [1.00–1.16], P = 0.042) and SBP CoV (1.12 [1.02–1.23], P = 0.023) were associated with the occurrence of CSR.

CONCLUSIONS
The use of a longer stent and increased SBP variability before carotid stent insertion were associated with the risk of CSR after carotid stenting. Underlying autonomic dysregulation may increase the risk of CSR during carotid stenting. SBP variability before carotid stenting might be considered a predictor of CSR.
Initiation of a discharge pharmacy within a busy urban emergency department: The first year
Authors: Fischer Daniel , Patel Alisha , Perotti Adrienne , Bastow Samantha , Scarpelli Denise , Lamb Matt , Spiegel Tom , Colgan Kevin , Celmins Laura 
Published: May 2022

Abstract

Purpose
Discharge prescriptions represent an important aspect of care for patients seen in the emergency department (ED) setting and are used by providers to continue therapy for acute illness once patients leave the ED or to prevent future exacerbations of chronic conditions. The success of an ED discharge and the medications prescribed rely on patient compliance. Compliance depends on patients’ ability to obtain prescriptions, which can be hindered by limited access to pharmacies and cost.

Summary
In order to address issues traditionally associated with medication noncompliance, a discharge pharmacy was implemented within a busy urban ED. The pharmacy began processing prescriptions on December 18, 2019, using a formulary aimed towards providing commonly prescribed and high-risk medications. The pharmacy accepts insurance plans in addition to utilizing 340B Drug Pricing Program pricing to offer affordable medications to patients. During the first year of operation 10,230 prescriptions were filled for 5,703 patients, representing 13% of all patients discharged during that time. Of the prescriptions filled, 35.4% were for products considered high-risk medications, including epinephrine auto-injectors, insulin, and antibiotics. Over 50% of these high-risk medications were provided to patients through reduced cash pricing. Pharmacist interventions were made on 4.3% of prescriptions to address incorrect dosing, avoid use of inappropriate antibiotics, and recommend alternative therapies.

Conclusion
The implementation of a discharge pharmacy within the ED allowed over 5,700 patients to be discharged with medications and represents a potential solution to issues surrounding medication noncompliance. Similar initiatives have the opportunity to improve medication access for a larger ED population.