bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermal Spray Deposition of a Copper Coating on Aluminium Using the Protal Process
Authors: Ayrault-Costil S. , Montavon G. , Coddet C. , Rigollet F. , Freneaux O. , Folio F. , Barbezat G. , Wasen P. , Diard A. 
Published: May 2021

Abstract
In this work, the benefits of the Protal process were investigated, comparing adhesion and morphology of different APS thermal spray copper coatings onto an aluminum base substrate. The Protal process operates simultaneously an atmospheric thermal spray torch and a Q-switched laser (Nd:YAG) to perform surface preparation and coating deposition in a single operation. In that case, substrates are coated rough from the machine shop, i.e. without any prior surface preparation. Results obtained in this way were compared with results obtained using a classical procedure, Le, degreasing followed by sandblasting prior to coating deposition.
Post Treatment of Plasma Sprayed WC-Co-Ni Coatings by High Frequency Induction Heating
Authors: Matsubara Y. , Tomiguchi A. , Haraguchi H. , Hayashi H. , Ito H. 
Published: May 2021

Abstract
The aim of this study was to improve the properties of atmospheric plasma sprayed WC-Co-Ni coatings by post treatment with induction heating. The spray powders used were WC-Co-Ni composite powders, produced by adding Ni-P alloy to WC-Co powder. Induction heating applied to the coating caused fusion of the Ni-P alloy with the WC-Co-Ni coating and a strong metallurgical bond with the steel substrate. An innovation in recent experiments was the use of an antioxidant paste applied to the outer surface of the coating under treatment. This eliminated the need for working under the restrictions of a hydrogen gas environment. The properties of the treated coating were investigated regarding microstructure, hardness, adhesive strength, abrasion resistance and porosity.
Practical Experience With the New Generation of Low-Cost, Portable HVOFs
Authors: Heath G.R. , Dumola R.J. 
Published: May 2021

Abstract
The UTSC '97 saw the release of a new wave of HVOF related technologies with the promise of high quality coatings allied to lower costs and simpler operation. This trend was seen by some experts as signifying the future of HVOF development. The emphasis was on increasing the cost effectiveness/competitiveness of HVOF coatings and making the technology more attractive to the general coatings market. One route was to use microchip technologies to control the process therefore reducing operation involvement in addition to reducing parts and system cost. Further features included using higher oxygen inlet chamber pressures for higher quality and higher deposition rates. The more compact and portable designs also allow HVOF to expand into field applications and a lower capital cost enabled non-specialists to adopt HVOF. This paper summarises the significant features of this technology wave in the light of practical operational experience and applications. One key to the success of the technology has been its correct matching to the coating type and application. Total coating cost analysis is performed to highlight its economic benefits and there is a comparison with other established forms of coating such as chrome plating, plasma and combustion spraying. This includes a description of the coating quality and wear performance.
Radio-Frequency Suspension Plasma Spraying of Cobalt Spinel Anodes for Alkaline Water Electrolysis
Authors: Mueller M. , Henne R. , Schiller G. , Boulos M.I. , Gitzhofer F. , Heimann R.B. 
Published: May 2021

Abstract
Suspensions of cobalt spinel (Co3O4) powders were rf plasma sprayed to form electrocatalytically active anode layers. Stable cobalt oxide suspensions of low viscosity exceeding 50 wt% solid phase have been processed. A spheroidization study revealed the formation of large spherical powder particles (- 30 + 80 µm). Cobalt oxide coatings were produced by rf suspension plasma spraying. The porosity was controlled by optimizing spray distance and reactor pressure. The main disadvantage of the thermal plasma processing of cobalt spinel is that the decomposition of the spinel phase into CoO could not be prevented, not even with the application of an 80% oxygen plasma. However, with a relatively low power oxygen plasma post-treatment, the deposited CoO layers can be oxidized to Co3O4, greatly improving the electrochemical performance of the anode layers.
Study of Damage Processes in Plasma Sprayed Bond Coat Under Thermal Cycling
Authors: Bonnet P. , Abboudl S. , Normand B. 
Published: May 2021

Abstract
Plasma sprayed thermal barriers are used as insulating materials in the hot sections of gas turbines to decrease the metal temperatures during service and men allow a higher combustion temperature for better engine efficiency. They usually contain a bond coating to protect the substrate from high temperature oxidation and a top coat with a low thermal conductivity. This study evaluate and identify the mechanisms of degradation of a vacuum plasma sprayed NiCoCrAlYTa bond coat subjected to thermal cycling at high temperature. The microstructure and micro-composition of the coating layer were analyzed by scanning electron microscopy and energy dispersive X-ray analysis to elucidate the improvement and degradation mechanisms of the material. The thermal cycling provokes some morphological and chemical modifications changes within this material. These modifications provoke a perturbation of the heat transfer within the material.
A study of the TP53 Germline Mutation and Clinicopathologic Features in Thai Children with Adrenocortical Carcinoma
Authors: Aungkawattanapong Nadvadee , Techavichit Piti , Lauhasurayotin Supanun , Chiengthong Kanhathai , Sosothikul Darintr , Monsereenusorn Chalinee , Supornsilchai Vichit , Suphapeetiporn Kanya , Teerapakpinyo Chinachote , Shuangshoti Shanop 
Published: May 2021

Objective: To determine the clinicopathologic features and germline tumor protein p53 (TP53) mutation in children with adrenocortical carcinoma (ACC).Material and Methods: This was a retrospective study. From 2009 to 2018, children with ACC from King Chulalongkorn Memorial Hospital and Phramongkutklao Hospital were enrolled into the study. Clinical presentations and hormonal profiles were recorded. Mutation analyses of the TP53 gene were acquired using the next-generation-sequencing method which was performed for germline samples of all patients and the parents of those who tested positive.Result: Two males and six females with ACC were enrolled into this study. The median age at diagnosis was 25.5 months (range 10 to 67 months). All participants had virilization, either virilization only (n=3) or associated with Cushing (n=5). All participants had had surgery to completely remove all of the tumor and three participants had received adjuvant chemotherapy consisting of etoposide, doxorubicin, and cyclophosphamide. All participants had three different known mutations in the TP53 gene: c.1010G>A (p.R337H), c.916C>T (p.R306*) and c.743G>A (p.R248Q). Two of the three participants with TP53 mutations had pulmonary metastasis. One participant had wild-type TP53 and pulmonary recurrence occurred one year after diagnosis. The median follow-up time was 31 months (range 10 to 168 months. As of this writing, seven participants survived without evidence of recurrence. No second malignancy was found in all participants. One participant who had c.916C>T died of pulmonary metastasis 10 months after diagnosis.Conclusion: We successfully identified three different germline TP53 mutations in patients with ACC. Progression to pulmonary metastasis and recurrence were higher among participants with TP53 mutations. The treatment outcome of childhood ACC was good when surgery and adjuvant chemotherapy were used.
The utility of diffusion tractography for speech preservation in laser ablation of the dominant insula: illustrative case
Authors: Kaufmann Timothy J. , Lehman Vance T. , Wong-Kisiel Lily C. , Kerezoudis Panagiotis , Miller Kai J. 
Published: May 2021

BACKGROUND
Open surgical treatment of insular epilepsy holds particular risk of injury to middle cerebral artery branches, the operculum (through retraction), and adjacent language-related white matter tracts in the language-dominant hemisphere. Magnetic resonance imaging (MRI)-guided laser interstitial thermal therapy (LITT) is a surgical alternative that allows precise lesioning with potentially less operative risk. The authors presented the case of a 13-year-old girl with intractable, MRI-negative, left (dominant hemisphere) insular epilepsy that was treated with LITT. Diffusion tensor imaging (DTI) tractography was used to aid full posterior insular lesioning in the region of stereo electroencephalography–determined seizure onset while avoiding thermal injury to the language-related superior longitudinal fasciculus (SLF)/arcuate fasciculus (AF) and inferior fronto-occipital fasciculus (IFOF).

OBSERVATIONS
DTI tractography was used successfully in planning insular LITT and facilitated a robust insular ablation with sharp margins at the interfaces with the SLF/AF and IFOF. These tracts were spared, and no neurological deficits were induced through LITT.

LESSONS
Although it is technically demanding and has important limitations that must be understood, clinically available DTI tractography adds precision and confidence to insular laser ablation when used to protect important language-related white matter tracts.
Long-term survival in patients with long-segment complex meningiomas occluding the dural venous sinuses: illustrative cases
Authors: Wei Zhishuo , Mallela Arka N. , Faramand Andrew , Niranjan Ajay , Lunsford L. Dade 
Published: May 2021

BACKGROUND
Invasive sagittal sinus meningiomas are difficult tumors to cure by resection alone. Stereotactic radiosurgery (SRS) can be used as an adjuvant management strategy to improve tumor control after incomplete resection.

OBSERVATIONS
The authors reported the long-term retrospective follow-up of two patients whose recurrent parasagittal meningiomas eventually occluded their superior sagittal sinus. Both patients underwent staged radiosurgery and fractionated radiation therapy to achieve tumor control that extended to 20 years after their initial surgery. After initial subtotal resection of meningiomas that had invaded major cerebral venous sinuses, adjuvant radiosurgery was performed to enhance local tumor control. Over time, adjacent tumor progression required repeat SRS and fractionated radiation therapy to boost long-term tumor response. Staged multimodality intervention led to extended survival in these patients with otherwise unresectable meningiomas.

LESSONS
Multimodality management with radiosurgery and fractionated radiation therapy was associated with long-term survival of two patients with otherwise surgically incurable and invasive meningiomas of the dural venous sinuses.
Neuroimaging findings and pathophysiology of dorsal spinal arachnoid webs: illustrative case
Authors: Pham Nancy , Ebinu Julius O. , Karnati Tejas , Hacein-Bey Lotfi 
Published: May 2021

BACKGROUND
Spinal arachnoid webs are uncommon and difficult to diagnose, especially because causative intradural transverse bands of arachnoid tissue are radiographically occult. Left untreated, arachnoid webs may cause progressive, debilitating, and permanent neurological dysfunction. Conversely, more than 90% of patients may experience rapid neurological recovery after resection, even with a prolonged duration of presenting symptoms. Indirect imaging signs such as spinal cord indentation and compression with cerebrospinal fluid (CSF) flow alteration provide crucial diagnostic clues that are critical in guiding appropriate management of such patients.

OBSERVATIONS
The authors reported a patient with no significant medical history who presented with back pain, progressive lower extremity weakness, gait ataxia, and bowel and bladder incontinence. They discussed multimodality imaging for determining the presence of arachnoid webs, including magnetic resonance imaging, phase-contrast CSF flow study, computed tomography myelography, and intraoperative ultrasound. They also discussed the detailed anatomy of the spinal subarachnoid space and a plausible pathophysiological mechanism for dorsal arachnoid webs.

LESSONS
The authors report on a patient who underwent comprehensive imaging evaluation detailing the arachnoid web and whose subsequent anatomical localization and surgical treatment resulted in a full neurological recovery.
FAKTOR FAKTOR YANG BERPENGARUH TERHADAP MODEL BANGKITAN PERJALANAN BEKERJA PADA KAWASAN PERUMAHAN DI KECAMATAN MUARA BANGKAHULU KOTA BENGKULU
Authors: Bahri Samsul , Nanda Bella Friska , Nanda Bella Friska , Razali Makmun Reza , Razali Makmun Reza 
Published: May 2021

Meningkatnya aktivitas bangkitan pergerakan kendaraan di suatu ruas jalan mencerminkan perkembangan yang terjadi di wilayah tersebut. Aktivitas masyarakat dalam bentuk perjalanan untuk bekerja, dapat mempengaruhi besarnya bangkitan pergerakan. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang berpengaruh terhadap model bangkitan perjalanan bekerja pada Kawasan Perumahan di Kecamatan Muara Bangkahulu. Metode penelitian dengan cara wawancara langsung dalam bentuk kuesioner. Analisis data penelitian menggunakan model regresi linier berganda. Hasil penelitian menunjukkan bahwa model bangkitan perjalanan pada Kawasan Perumahan di Kecamatan Muara Bangkahulu memiliki persamaan y = -0,961 + 0,173 x1 + 0,193 x4 + 1,257 x5, r2 = 0,886 dengan faktor yang mempengaruhi adalah jumlah anggota keluarga (x1), jumlah penghasilan rata-rata keluarga perbulan (x4) dan jumlah anggota keluarga bekerja (x5).
COVID-19: Metodologias de diagnóstico
Authors: Santos-Neto Agenor Gomes dos , Santos Alessandro de França , Santos Jhonata Rodrigues dos , Alves Lumar Lucena , Ramos Anne Caroline Santos , Santana Adilson Allef Moraes , Santos Izabella Dayane Dorta dos , Gaspar Lívia Maria do Amorim Costa 
Published: May 2021

Em meados de dezembro de 2019, surgiram os primeiros casos da doença causada pelo novo Coronavírus 2019, o SARS-CoV-2, na cidade de Wuhan (China). A doença causada pelo novo Coronavírus (COVID-19) acomete inicialmente o trato respiratório e seu curso clínico pode acarretar disfunções orgânicas no hospedeiro. Neste ínterim, os exames laboratoriais são ferramentas de diagnóstico de grande importância para a detecção do SARS-CoV-2, confirmação da doença e observação de disfunções sistêmicas. Desta forma, este estudo objetivou revisar as metodologias de diagnóstico do SARS-CoV-2 e alterações nos exames laboratoriais. Trata-se de uma revisão literária realizada entre 01 de janeiro e 31 de maio de 2020 a partir de dados advindos de trabalhos publicados em revistas científicas disponíveis na íntegra. Para tanto, foram utilizadas as bases de dados PubMed, Science Direct e Scielo e os seguintes descritores em inglês: coronavirus, covid-19, sars-cov-2, laboratory medicine, laboratory tests, laboratory findings, RT-PCR, immunochromatography e chemiluminescence. Foram encontrados 2810 artigos científicos relacionados onde apenas 24 foi considerado para o estudo. O SARS-CoV-2 pode ser detectado em amostras respiratórias através de metodologias de diagnóstico laboratorial como o RT-PCR (Real-time Polymerase Chain Reaction) ou através de detecção de anticorpos através dos testes imunocromatográficos, imunosorventes e quimioiluminescentes. Además, podem ser observadas alterações hematológicas relacionadas ao leucograma, coagulação, marcadores hepáticos e renais bem como marcadores inflamatórios. Em suma, as ferramentas de diagnóstico têm sido cruciais para o acompanhamento do paciente com sintomas da COVID, servindo de apoio aos clínicos na tomada de decisões.
Ingested foreign body associated with tooth extraction: Report of a case
Authors: Ferriolli Stéfani Caroline , Benetti Luan Pier , Baggio Ana Maira Pereira , Bizelli Vinícius Ferreira , Ramos Edith Umasi , Ponzoni Daniela , Bassi Ana Paula Farnezi 
Published: May 2021

Aspiration and ingestion of teeth, dental prostheses and other foreign bodies in maxillofacial injuries is a known complication necessitating prompt recognition and early treatment to minimize potentially serious and, sometimes, even fatal consequences. However, an aspirated or ingested foreign body does not always produce untoward affects and may be overlooked when no acute respiratory distress is evident or multiple life-threatening injuries are present. Here, we report a case in its presentation; the patient underwent extraction of a left upper third molar. After extraction, alveolar irrigation was performed with syringe, needle and sterile saline. the patient ingested the irrigation needle. The patient was properly referred to the emergency room of the hospital of Santa Fé do Sul and referred to the care of the general surgeon, who removed the needle with endoscopic removal under sedation. Clinicians must be aware that the instrument used for dental treatment are mostly small and there is a risk of these falling into the oropharynx and being swallowed or inhaled. The paper also emphasizes that attention to the potentially serious consequences and to offer guidance on management.
Infometria nas Bases Web of Science e Scopus: Governança Corporativa, Informação e Tecnologia da Informação; Precificação de Ações e Riscos de Mercado
Authors: Peixe Adriana Maria Miguel , Pinto José Simão de Paula 
Published: May 2021

O estudo teve como objetivo levantar o referencial teórico por meio de uma infometria para identificar o estado da arte sobre a “Governança Corporativa”, “Informação”, “Tecnologia da informação”, “Precificação de Ações” e “Riscos de mercado”, em português/inglês, a partir de palavras-chave/termos, pesquisadas nas bases Web of Science e Scopus no período de 2015 a 2020. Para este portfólio, fez-se então uma análise bibliométrica e uma revisão sistemática da literatura visando construir o conhecimento referente aos assuntos. Como os artigos na base Scopus também estavam presentes na base Web of Science e por ser um número menor de artigos encontrados na base Scopus, decidiu-se manter somente na continuidade da pesquisa os artigos da base Web of Science, total de 307 artigos, em inglês; por ser a base escolhida uma base bem completa, multidisciplinar e ser aceitável o acesso para o uso dos softwares VOSViewer e NVivo usados neste estudo. Os artigos analisados foram todos de 2020 por serem mais atuais possíveis. Infere-se que neste estudo a maioria dos autores estuda de maneira isolada, sem conexões. Efetuou-se análise de documentos no acoplamento bibliográfico de 30 artigos. Sendo assim, destaca-se o ineditismo e o gap na pesquisa. Afirma-se que as palavras buscadas no estudo quando todas juntas aos operadores booleanos não são encontradas nos respectivos artigos. Embora em todos os artigos estudados jazer explicitado a presença do termo “Information” somente. Notória a importância deste termo para os autores, num contexto amplo entende-se que a “informação” é elemento essencial para a sobrevivência humana.
Comprehensive Characterization of Cachexia-Inducing Factors in Diffuse Large B-Cell Lymphoma Reveals a Molecular Subtype and a Prognosis-Related Signature
Authors: Kuang Zhixing , Li Xun , Liu Rongqiang , Chen Shaoxing , Tu Jiannan 
Published: May 2021

BackgroundCachexia is defined as an involuntary decrease in body weight, which can increase the risk of death in cancer patients and reduce the quality of life. Cachexia-inducing factors (CIFs) have been reported in colorectal cancer and pancreatic adenocarcinoma, but their value in diffuse large B-cell lymphoma (DLBCL) requires further genetic research.MethodsWe used gene expression data from Gene Expression Omnibus to evaluate the expression landscape of 25 known CIFs in DLBCL patients and compared them with normal lymphoma tissues from two cohorts [GSE56315 (n = 88) and GSE12195 (n = 136)]. The mutational status of CIFs were also evaluated in The Cancer Genome Atlas database. Based on the expression profiles of 25 CIFs, a single exploratory dataset which was merged by the datasets of GSE10846 (n = 420) and GSE31312 (n = 498) were divided into two molecular subtypes by using the method of consensus clustering. Immune microenvironment between different subtypes were assessed via single-sample gene set enrichment analysis and the CIBERSORT algorithm. The treatment response of commonly used chemotherapeutic drugs was predicted and gene set variation analysis was utilized to reveal the divergence in activated pathways for distinct subtypes. A risk signature was derived by univariate Cox regression and LASSO regression in the merged dataset (n = 882), and two independent cohorts [GSE87371 (n = 221) and GSE32918 (n = 244)] were used for validation, respectively.ResultsClustering analysis with CIFs further divided the cases into two molecular subtypes (cluster A and cluster B) associated with distinct prognosis, immunological landscape, chemosensitivity, and biological process. A risk-prognostic signature based on CCL2, CSF2, IL15, IL17A, IL4, TGFA, and TNFSF10 for DLBCL was developed, and significant differences in overall survival analysis were found between the low- and high-risk groups in the training dataset and another two independent validation datasets. Multivariate regression showed that the risk signature was an independently prognostic factor in contrast to other clinical characteristics.ConclusionThis study demonstrated that CIFs further contribute to the observed heterogeneity of DLBCL, and molecular classification and a risk signature based on CIFs are both promising tools for prognostic stratification, which may provide important clues for precision medicine and tumor-targeted therapy.
Effect of Endometrium Thickness on Clinical Outcomes in Luteal Phase Short-Acting GnRH-a Long Protocol and GnRH-Ant Protocol
Authors: Zhang Jie , Sun Yi-Fei , Xu Yue-Ming , Shi Bao-jun , Han Yan , Luo Zhuo-Ye , Zhao Zhi-Ming , Hao Gui-Min , Gao Bu-Lang 
Published: May 2021

ObjectiveTo investigate the factors that influence luteal phase short-acting gonadotropin-releasing hormone agonist (GnRH-a) long protocol and GnRH-antagonist (GnRH-ant) protocol on pregnancy outcome and quantify the influence. About the statistical analysis, it is not correct for the number of gravidities.MethodsInfertile patients (n = 4,631) with fresh in-vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) and embryo transfer were divided into GnRH-a long protocol (n =3,104) and GnRH-ant (n =1,527) protocol groups and subgroups G1 (EMT ≤7mm), G2 (7 mm &lt;EMT ≤10 mm), and G3 (EMT &gt;10 mm) according to EMT on the trigger day. The data were analyzed.ResultsThe GnRH-ant and the GnRH-a long protocols had comparable clinical outcomes in the clinical pregnancy, live birth, and miscarriage rate after propensity score matching. In the medium endometrial thickness of 7–10 mm, the clinical pregnancy rate (61.81 vs 55.58%, P &lt; 0.05) and miscarriage rate (19.43 vs 12.83%, P &lt; 0.05) of the GnRH-ant regime were significantly higher than those of the GnRH-a regime. The EMT threshold for clinical pregnancy rate in the GnRH-ant group was 12 mm, with the maximal clinical pregnancy rate of less than 75% and the maximal live birth rate of 70%. In the GnRH-a long protocol, the optimal range of EMT was &gt;10 mm for the clinical pregnancy rate and &gt;9.5 mm for the live birth rate for favorable clinical outcomes, and the clinical pregnancy and live birth rates increased linearly with increase of EMT. In the GnRH-ant protocol, the EMT thresholds were 9–6 mm for the clinical pregnancy rate and 9.5–15.5 mm for the live birth rate.ConclusionsThe GnRH-ant protocol has better clinical pregnancy outcomes when the endometrial thickness is in the medium thickness range of 7–10 mm. The optimal threshold interval for better clinical pregnancy outcomes of the GnRH-ant protocol is significantly narrower than that of the GnRH-a protocol. When the endometrial thickness exceeds 12 mm, the clinical pregnancy rate and live birth rate of the GnRH-ant protocol show a significant downward trend, probably indicating some negative effects of GnRH-ant on the endometrial receptivity to cause a decrease of the clinical pregnancy rate and live birth rate if the endometrial thickness exceeds 12 mm.