检索结果-南通市图书馆

Intimal sarcoma of the pulmonary artery with multiple lung metastases: Long-term survival case

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Oncology 2017年第4期8卷 366-370页

作者： Sonia García-Cabezas Macarena Centeno-Haro Simona Espejo-Pérez Elvira Carmona-Asenjo Alberto L Moreno-Vega Rosa Ortega-salas Amalia Palacios-Eito Department of Radiation Oncology Reina Sofia University Hospital Department of Pathological Anatomy Reina Sofia University Hospital Department of Radiology Reina Sofia University Hospital Department of Nuclear Medicine Reina Sofia University Hospital Department of Medical Oncology Reina Sofia University Hospital

Pulmonary artery intimal sarcoma(PAIS) is a rare tumor with a very poor prognosis. Clinical and radiological findings usually mimic thromboembolic disease, leading to diagnostic delays. The treatment of choice is surgery, and adjuvant chemotherapy and radiotherapy have limited results. We report the case of a 48-year-old male patient, initially suspected with pulmonary thromboembolism. The angio-CT revealed a filling defect in the pulmonary artery trunk. The patient underwent surgery, resulting in with complete resection of the mass with a diagnosis of PAIS. The tumor progressed rapidly in the lung, requiring surgery of multiple lung metastases. The patient was treated with stereotactic body radiation therapy(SBRT) on two occasions for new pulmonary lesions. In the last follow-up(4 years after initial diagnosis), the patient was disease-free. In conclusion, SBRT proved to be an alternative treatment to metastasectomy, allowing palliative chemotherapy to be delayed or omitted, which may result in improved quality of life.

关键词： Intimal sarcoma of the pulmonary artery Lung metastases Metastasectomy Stereotactic body radiation therapy Treatment

Effect of Silicon Amendment on Growth and Nitrogen Status of Common Landscaping Plants

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2024年第8期15卷 603-616页

作者： Bárbara Nogueira Souza Costa Milagros Ninoska Munoz salas Kylie Gil Amir Ali Khoddamzadeh Department of Earth and Environment Institute of Environment Florida International University Miami FL USA

Agriculture and natural vegetations in South Florida face with significant environmental threats such as heat and saltwater intrusion. This study aimed to investigate how silicon application could improve growth parameters and plant health of landscaping plants under extreme temperatures, influenced by global climate changes. Cocoplum (Chrysobalanus icaco), cabbage palm (Sabal palmetto), satinleaf (Chrysophyllum oliviforme), and wild coffee (Psychotria nervosa) plants received an initial slow-release fertilizer of 15 g/pot with an 8N-3P-9K composition. Silicon was applied as a 1% silicic acid solution, with concentrations ranging from 0 g/pot to 6 g/pot of 7.5 L. Evaluations were carried out every 30 days, continuing until 180 days after the treatment was completed. Phenotypic traits, including leaf count and plant height, were assessed alongside measurements from handheld optical non-destructive sensors. These measurements included the normalized difference vegetation index (NDVI), SPAD-502, and atLEAF chlorophyll meters. Application of 4 g/pot and 6 g/pot of silicon significantly improved NDVI values (0.78). Conversely, cocoplum plants exhibited greater plant height (79.6) at 0 g/pot silicon compared to other treatments. In wild coffee samplings, the control group showed the highest plant height and SPAD readings (93.49) compared to other treatments. Interestingly, the control treatment also demonstrated a superior atLEAF value as compared to other treatments, while the tallest samplings were observed with 6 g/pot of silicon (62.82) in cabbage palm plants. The findings indicate that silicon application positively influenced plant growth, particularly evident in cabbage palms. However, cocoplum and wild coffee exhibited a negative correlation between plant height and silicon concentrations.

关键词： Silicon Application Chlorophyll Content Cocoplum Cabbage Palm Satinleaf Wild Coffee

Endoscopic response to tumor necrosis factor inhibitors predicts long term benefits in Crohn's disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2019年第14期25卷 1764-1774页

作者： Ignacio Alfaro Maria Carme Masamunt Nuria Planell Alicia López-García Jesús Castro Marta Gallego Rebeca Barastegui Angel Giner Alejandro Vara Azucena salas Elena Ricart Julián Panés Ingrid Ordás Gastroenterology Department Hospital Clínic de Barcelona Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) University of Barcelona

BACKGROUND Identifying predictors of therapeutic response is the cornerstone of personalized *** To identify predictors of long-term mucosal healing(MH) in patients with Crohn's disease(CD) treated with tumor necrosis factor α(TNF-α) *** Prospective single center study. Consecutive patients with clinically active CD requiring treatment with a TNF-α inhibitor were included. A baseline segmental CD Endoscopic Index of Severity(CDEIS) ≥ 10 in at least one segment or the presence of ulcerations were required for inclusion. Clinical, biological and endoscopic data were obtained at baseline, weeks 14 and 46. Endoscopic response(ER) was defined as a decrease ≥ 50% from baseline CDEIS and MH as partial CDEIS ≤ 5 in all *** Of 62 patients were included. At baseline, median CD Activity Index and CDEIS were 201 and 6.7, respectively with a significant reduction after one year of treatment(53 and 3.0 respectively, P < 0.001). At week 14, 56% of patients achieved ER and 34% MH. At week 46, the corresponding percentages were 52%and 44%. Baseline disease characteristics or biomarkers did not predict MH. A decrease from baseline CDEIS at week 14 of at least 80% was the best predictor of MH at week 46(59% sensitivity and 91% specificity; area under the curve =0.778).CONCLUSION Clinical and biomarker data are not useful predictors of response to TNF-αinhibitors in CD, whereas ER to induction therapy, defined as 80% reduction in global CDEIS, is a robust predictor of long-term MH. Achievement of this endoscopic endpoint may be considered as a therapeutic target for anti-TNF-αtherapy.

关键词： Crohn’s disease Endoscopy Mucosal healing Crohn’s Disease Endoscopic Index of Severity Tumor necrosis factor

Estimation of Timber Production of Five Species of the Tamaulipas Thorny Shrubs Growing in Native Stands and Plantations

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Forestry 2014年第3期4卷 239-248页

作者： Ngangyo Heya Maginot Foroughbakhch Pournavab Rahim Carrillo-Parra Artemio salas Cruz Lidia-Rosaura Department of Botany Faculty of Biological Sciences University Autonomous of Nuevo León University Town San Nicolás de los Garza Mexico Laboratory of Wood Tecnology Faculty of Forestry Sciences University Autonomous of Nuevo León Linares Mexico

Shrub species have a great capacity to develop in extreme climatic conditions;this ability has a direct influence on their development and productivity in timber and firewood. In this paper, the timber’s production of experimental plantation aged 28 years of Acacia berlandieri (Benth.), Havardia pallens (Benth.) Britton & Rose, Helietta parvifolia (Gray) Benth., Ebenopsis ebano (Berl.) Barneby and Acacia wrightii (Benth.) species is quantified and compared with the production of the same species developed naturally in the native bush. The variables recorded were the number of shoots per tree, total height, basal diameter and diameter at breast height of each tree to determine the volume of wood with the Smalian equation. The results indicate that the volume of usable wood was higher in experimental plantation than that on native vegetation for H. parvifolia, A. berlandieri and H. pallens. The species that produced the highest volume of timber were H. parvifolia (0.396 m3·ha-1·year-1) in plantations and E. ebano (0.118 m3·ha-1·year-1) in native shrubs, species with lower production were H. pallens (0.059 m3·ha-1·year-1) and A. berlandieri (0.052 m3·ha-1·year-1) in the native area. The highest number of shoots was registered for A. berlandieri and H. parvifolia, with eight shoots per tree in experimental plantations of both species compared with native vegetation, which was five and three shoots per tree respectively. These results high-light the importance of developing plantations in degraded areas of scrub, which can increase timber volume production.

关键词： Timber Shoots Tamaulipas Thorny Scrub Plantation Native Vegetation

Low Voltage Daily Energy Demand Temperature Dependent Representation by Using Circular Statistics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics 2019年第3期10卷 61-74页

作者： Pucheta Julián salas Carlos Piumetto Miguel Herrera Martín Rodriguez Rivero Cristian Departamento de Electrónica-FCEFyN-Universidad Nacional de Córdoba Córdoba Argentina FTyCA-Universidad Nacional de Catamarca San Fernando del Valle de Catamarca Argentina Center for Neuroscience University of California at Davis-EEUU Davis Argentina

In this work, a tool that allows visualizing the probability of the power demand according to the temperature and the hours of the day is presented. This aim contributes to the decision making support for the transformer and its service administration. The objective is to represent the demand accurately as a color statistical map based on two variables: the time of day and the ambient temperature. Since the daily energy consumption is periodic regarding the hours of the day in terms of several days, its representation with Gaussian models becomes difficult, but it is simplified when working with circular statistics. The circular statistics used here is the Von Mises distribution, which has the parameters mean address and kappa concentration. Results obtained from measurements made over a year in a medium-voltage transformer with intervals of 60 minutes are shown.

关键词： Distribution Transformers Charge Estimation Time Series Dynamic Process Circular Statistics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

低功耗:芯片与系统设计初探

电子设计技术 EDN CHINA 2010年第9期17卷 50-50,52,54,55页

作者： Mike salas Silicon Labs公司

要理清各家微控制器供应商提出的低功耗数值是一个极具挑战性的工作，对于多数应用，用一个通过占空比来确定基本功耗的公式就可以方便地解决问题。

关键词：低功耗设计系统芯片微控制器挑战性供应商占空比

HVOF-sprayed HAp/S53P4 BG composite coatings on an AZ31 alloy for potential applications in temporary implants

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Magnesium and Alloys 2024年第1期12卷 345-360页

作者： Carlos A.Poblano-salas John Henao Astrid L.Giraldo-Betancur Paola Forero-Sossa Diego German Espinosa-Arbelaez Jorge A.González-Sánchez Luis R.Dzib-Pérez Susana T.Estrada-Moo Idelfonso E.Pech-Pech CIATEQ A.C. Av.Manantiales 23-AParque Industrial Bernardo QuintanaEl MarquésQuerétaro 76246Mexico CONAHCYT-CIATEQ A.C. Av.Manantiales 23-AParque Industrial Bernardo QuintanaEl MarquésQuerétaro 76246Mexico CONAHCYT-Cinvestav Libramiento Norponiente#2000.Fraccionamiento Real de JuriquillaQuerétaro 76230Mexico Universidad Tecnológica de Querétaro Av.Pie de la Cuesta N°2501Querétaro 76148Mexico CIDESI Av.Playa Pie de la Cuesta No 702Col.San PabloQuerétaro 76125Mexico Center for Corrosion Research Autonomous University of CampecheAv.Héroe de Nacozari No.480P.C.24070San Francisco de CampecheCam.Mexico

Bioactive thermal spray coatings produced via high-velocity oxygen fuel spray(HVOF)from hydroxyapatite(HAp)and bioactive glasses(BG)have the potential to be employed on temporary implants due to the ability of both HAp and BG to dissolve and promote osseointegration,considering that both phases have different reaction and dissolution rates under in-vitro *** the present work,75%***-25%wt.S53P4 bioactive glass powders were HVOF-sprayed to obtain HAp/S53P4 BG composite coatings on a bioresorbable AZ31 *** study is focused on exploring the effect of the stand-off distance and fuel/oxygen ratio variation as HVOF parameters to obtain stable structural coatings and to establish their effect on the phases and microstructure produced in those *** characterization techniques,such as scanning electron microscopy,X-ray diffraction,and Fourier transform infrared spectroscopy,were employed to characterize relevant structural and microstructural properties of the composite *** results showed that thermal gradients during coating deposition must be managed to avoid delamination due to the high temperature achieved(max 550℃)and the differences in coefficients of thermal *** was also found that both spraying distance and oxygen/fuel ratio allowed to keep the hydroxyapatite as the main phase in the *** addition,in-vitro electrochemical studies were performed on the obtained HAp/S53P4 BG composite coatings and compared against the uncoated AZ31 *** results showed a significant decrease in hydrogen evolution(at least 98%)when the bioactive coating was applied on the Mg alloy during evaluation in simulated body fluid(SBF).

关键词： Coatings Composites Thermal spray Temporary implants Hydrogen evolution

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

降低功耗的革新性方法

中国集成电路 2016年第3期25卷 12-14页

作者： Mike salas Ambiq Micro

物联网和无处不在的计算，已经突显了降低各种电子产品功耗的重要性。如果在不久的将来，所有电子产品和目前未连接设备都真正联网的话，所带来的好处并非技术性能的提高，因为现在的性能已经足够维持物联网（IoT）了；而是代表着电子... 详细信息

物联网和无处不在的计算，已经突显了降低各种电子产品功耗的重要性。如果在不久的将来，所有电子产品和目前未连接设备都真正联网的话，所带来的好处并非技术性能的提高，因为现在的性能已经足够维持物联网（IoT）了；而是代表着电子产品的能耗已经降到足够低，能够在这种新型互联网内有意义地发挥作用。

关键词：低功耗革新电子产品技术性能物联网连接设备互联网

Short and Long-Term Time Series Forecasting Stochastic Analysis for Slow Dynamic Processes

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Applied Mathematics 2019年第8期10卷 704-717页

作者： Julián Pucheta Carlos salas Martín Herrera Cristian Rodriguez Rivero Gustavo Alasino FCEFyN-Universidad Nacional de Córdoba Córdoba Argentina FTyCA-Universidad Nacional de Catamarca Catamarca Argentina Cristian University of California Los Angeles USA Universidad Torcuato Di Tella Buenos Aires Argentina

This paper intends to develop suitable methods to provide likely scenarios in order to support decision making for slow dynamic processes such as the underlying of agribusiness. A new method to analyze the short- and long-term time series forecast and to model the behavior of the underlying process using nonlinear artificial neural networks (ANN) is presented. The algorithm can effectively forecast the time-series data by stochastic analysis (Monte Carlo) of its future behavior using fractional Gaussian noise (fGn). The algorithm was used to forecast country risk time series for several countries, both for short term that is 30 days ahead and long term 350 days ahead scenarios.

关键词： Stochastic Analysis Time Series Forecasting Decision Making Dynamic Process Process Modelling