检索结果-南通市图书馆

Management of incidentally discovered appendiceal neuroendocrine tumors after an appendicectomy

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 2022年第13期28卷 1304-1314页

作者： Joséluis Muñoz de Nova jorge Hernando Miguel Sampedro Núñez Greissy Tibisay Vázquez Benítez Eva María Triviño Ibáñez María Isabel del Olmo garcía jorge Barriuso Jaume Capdevila Elena Martín-Pérez Department of General and Digestive Surgery Hospital Universitario de La PrincesaMadrid 28006Spain Department of Surgery Universidad Autónomade MadridMadrid 28029Spain Gastrointestinal and Endocrine Tumor Unit Medical Oncology DepartmentVall d´Hebron University HospitalVall d´Hebron Institute of OncologyBarcelona 08035Spain Department of Endocrinology and Nutrition Hospital Universitario de La PrincesaMadrid 28006Spain Department of Pathology Hospital Universitario Puerta de HierroMadrid 28222Spain Department of Pathology Universidad Autónoma de MadridMadrid 28029Spain Department of Nuclear Medicine Virgen de las Nieves University HospitalGranada 18014Spain Department of Endocrinology and Nutrition Hospital Universitario i Politècnic La FeValencia 46023Spain Division of Cancer Sciences School of Medical SciencesFaculty of BiologyMedicine and HealthUniversity of ManchesterManchester M139PLUnited Kingdom Department of Medical Oncology The Christie NHS Foundation TrustManchester M204BXUnited Kingdom

Appendiceal neuroendocrine tumors(aNETs)are an uncommon neoplasm that is relatively indolent in most *** are typically diagnosed in younger patients than other neuroendocrine tumors and are often an incidental finding after an *** there are numerous clinical practice guidelines on management of a NETs,there is continues to be a dearth of evidence on optimal *** of these tumors is stratified according to risk of locoregional and distant ***,there is a lack of consensus regarding tumors that measure 1-2 *** these cases,some histopathological features such as size,tumor grade,presence of lymphovascular invasion,or mesoappendix infiltration must also be *** tomography or magnetic resonance imaging scans are recommended for evaluating the presence of additional disease,except in the case of tumors smaller than 1 cm without additional risk *** receptor scintigraphy or positron emission tomography with computed tomography should be considered in cases with suspected residual or distant *** main point of controversy is the indication for performing a completion right hemicolectomy after an initial appendectomy,based on the risk of lymph node *** main factor considered is tumor size and 2 cm is the most common threshold for indicating a *** factors such as mesoappendix infiltration,lymphovascular invasion,or tumor grade may also be *** the other hand,potential complications,and decreased quality of life after a hemicolectomy as well as the lack of evidence on benefits in terms of survival must be taken into *** this review,we present data regarding the current indications,outcomes,and benefits of a colectomy.

关键词： Neuroendocrine tumors Carcinoid tumor Appendiceal neoplasms Colectomy Neoplasm grading Treatment outcome

Multi-objective evolutionary optimization and thermodynamics performance assessment of a novel time-dependent solar Li-Br absorption refrigeration cycle

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2022年第11期65卷 2703-2722页

作者： MOHTARAM Soheil WU WeiDong ARYANFAR Yashar ABRISHAMI Arya OMIDI Mohammad YANG QiGuo garcIA ALCARAZ jorge luis CHEN YongBao School of Energy and Power Engineering University of Shanghai for Science and Technology Shanghai 20093China Department of Electric Engineering and Computation Autonomous University of Ciudad JudrezJuarezChihuahuaMexico School of Aerospace Engineering Tsinghua University Bejing 100084China School of Energy and Power Engineering Dalian University of TechnologyDalian116024China Depariment of Industrial Engineering and Manufacturing Autonomous University of Ciudad JudrezJudrezChihuahuaMexico

This research paper aims to perform dynamics analysis,3E assessment including energy,exergy,exergoeconomic,and the multiobjective evolutionary optimization on a novel solar Li-Br absorption refrigeration *** research is time-dependent,owing to solar radiation variability during different ***,all the necessary thermodynamic,energy,and exergy equations are applied *** is followed by the thermoeconomic analysis,which takes place after defining the designing variables during the thermoeconomic optimization process and is presented together with the economic relations of the system and its thermoeconomic ***,the sensitivity analysis is undertaken,the source of system inefficiency is determined,the multi-objective evolutionary optimization of the whole system is carried out,and the optimal values are compared with the primary *** Equation Solver(EES)software has been used to accomplish comprehensive *** part of the validation process,the results of the research are compared with those published previously and are found to be relatively consistent.

关键词： solar absorption refrigeration water-lithium bromide thermodynamics performance exergy analysis multi-objective optimization

Local excision by transanal endoscopic surgery

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2015年第31期21卷 9286-9296页

作者： luis J garcía-Flórez jorge L Otero-Díez General and Digestive Surgery Service Colorectal UnitHospital San Agustín

Transanal endoscopic surgery(TES) consists of a series of anorectal surgical procedures using different devices that are introduced into the anal canal. TES has been developed significantly since it was first used in the 1980 s. The key point for the success of these techniques is how accurately patients are selected. The main indication was the resection of endoscopically unresectable adenomas. In recent years,these techniques have become more widespread which has allowed them to be applied in conservative rectal procedures for both benign diseases and selected cases of rectal cancer. For more advanced rectal cancers it should be considered palliative or,in some controlled trials,experimental. The role of newer endoscopic techniques available has not yet been defined. TES may allow for new strategies in the treatment of rectal pathology,like transanal natural orifice transluminal endoscopic surgery or total mesorectal excision.

关键词： Transanal endoscopic surgery Rectal adenoma Early

The new Caribbean Nitrogen Index to assess nitrogen dynamics in vegetable production systems in southwestern Puerto Rico

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Soil and Water Conservation Research 2017年第1期5卷 69-75页

作者： Miguel Oliveras-Berrocales David Sotomayor-Ramirez jorge A.Delgado luis R.Perez-Alegriad USDA-NRCS Arkansas:2603 Federal Building100 E8th AvePine BluffAR 71601USA University of Puerto Rico Mayaguez CampusCollege of Agricultural SciencesDepartment of Agroenvironmental SciencesPO Box 9000MayagüezPR 00680USA USDA-ARS Acting Research LeaderSoil Management and Sugar Beet Research Unit2150 Centre Ave.Building DSuite 100Fort CollinsCO 80526USA University of Puerto Rico Mayaguez CampusCollege of Agricultural SciencesDepartment of Agricultural and Biosystems EngineeringUSA

Nutrient loss from agricultural fields is one of the main factors influencing surface-and ground-water *** fertilizer nitrogen(N)consumption rates in vegetable production systems and horticultural crops in Puerto Rico fluctuate between 112 and 253 kg N/*** nitrogen use efficiency of vegetable crops is low,increasing the potential for nitrogen losses and high residual soil nitrate *** of residual soil N and N losses to the environment can be a difficult *** models such as the USDA-ARS N Index can be used to identify the relative magnitude of varying N-loss pathways and to identify best management *** studies were conducted to quantify residual soil N and crop N removal,and to validate the Nitrogen Index in onion,tropical pumpkin and tomato production systems in the Lajas Valley in southwestern Puerto *** between observed and simulated values were determined to examine the capability of the model for evaluating N *** was good correlation between observed and predicted values for residual soil N(r=0.88)and crop N removal(r=0.99)(p<0.05).In the production systems evaluated,the N volatilization losses ranged from 1 to 4 kg N/ha,the denitrification losses ranged from 18 to 46 kg N/ha,the leaching losses ranged from 155 to 779 kg N/ha,and the residual soil nitrate ranged from 64 to 401 kg N/*** N use efficiency ranged from 15% to 39%.The results obtained showed that the Nitrogen Index tool can be a useful tool for evaluating N transformations in vegetable production systems of Puerto Rico's semi-arid zone.

关键词： Nitrogen index Nitrogen management Residual soil N Crop N removal

A novel and stretchable carbon-nanotube/Ni@TiO_(2):W photocatalytic composite for the complete removal of diclofenac drug from the drinking water

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2023年第4期126卷 575-589页

作者： Ernesto Valadez-Renteria Rafael Perez-Gonzalez Christian Gomez-Solis luis Armando Diaz-Torres Armando Encinas jorge Oliva Vicente Rodriguez-Gonzalez Consejo Nacional de Ciencia y Tecnología-División de Materiales Avanzados Instituto Potosino de Investigación Científica y TecnológicaSan Luis Potosí78216México División de Ciencias e Ingenierías Universidad de GuanajuatoLeón 37150México Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados(GEMANA) Centro de Investigaciones enópticaA.C.Lomas Del CampestreLeón 37150México

We present the structural,morphological and photocatalytic properties of stretchable composites made with carbon nanotubes (CNTs),silicon rubber and Ni@TiO_(2):W nanoparticles(TiWNi NPs) with average size of 37±2 *** images showed that the TiWNi NPs decorated the surface of the CNT fibers,which are oriented in a preferential *** NPs presented a mixture of anatase/rutile phases with cubic *** performance of the TiWNi powders and stretchable composites was evaluated for the photocatalytic degradation of diclofenac (DCF) anti-inflammatory drug under ultraviolet-visible *** results revealed that the maximum DCF degradation percentages were 34.6%,91.9%,97.1%,98.5%and 100%for the CNT composite (stretched at 0%),TiWNi powders,CNT+TiWNi(stretched at 0%),CNT+TiWNi (stretched at 50%) and CNT+TiWNi (stretched at 100%),***,stretching the CNT+TiWNi composites was a good strategy to enhance the DCF degradation percentage from 97.1%to 100%,since stretching created additional defects (oxygen vacancies) that acted as electron sink,delaying the electron-hole recombination,and favors the DCF ***/absorbance measurements confirmed the presence of such ***,the reactive oxygen species (ROS) were determined by the scavenger’s experiments and found that the main ROS were the·OH and O_(2)-radicals,which attacked the DCF molecules,causing their *** results of this investigation confirmed that the stretchable CNT/TiWNi-based composites are a viable alternative to remove pharmaceutical contaminants from water and can be manually separated from the decontaminated water,which is unviable using photocatalytic powders.

关键词： Diclofenac Pharmaceutical contaminant TiO_(2) Carbon nanotubes Stretchable composite Photocatalysis

Eucalyptus grandis plantations:effects of management on soil carbon,nutrient contents and yields

在线全文

学校读者我要写书评

暂无评论

Journal of Forestry Research 2020年第2期31卷 601-611页

作者： Diego Martin Sandoval Lopez Marcelo Fabian Arturi Juan Francisco Goya Carolina Alejandra Perez jorge luis Frangi Laboratorio de Investigacion de Sistemas Ecologicos y Ambientales(LISEA) Universidad Nacional de La PlataDiagonal 113 N°4691900 La PlataBuenos AiresArgentina

The expansion of fast-growing tree plantations is a worldwide process,with consequences on soil fertility and soil carbon *** results were found on the effects of afforestation with Eucalyptus on soil carbon and other nutrient *** discrepancies are usually caused by differences in climate,land use history,soil texture as well as by management related factors such as plantation age,number of rotations,method of establishment(plantation or coppice),harvest residue management and soil *** studied the effect of plantation age,number of rotations,and method of establishment on soils and plant nutrient concentrations in Eucalyptus grandis plantations in NE Argentina on different textured *** also determined if yields changed with nutrient variations in soils,and compared soils under plantations to soils under grasslands they ***-one *** stands of different ages,number of rotations and method of establishment were evaluated as well as eight grassland *** of carbon,nitrogen,phosphorus,potassium,calcium and magnesium were determined for soils and *** carbon and nitrogen decreased over the number of rotations and were more pronounced in soils with 50-60%sand than soils with>75%*** stands showed higher soil carbon and nitrogen levels than plantations,suggesting a negative effect of site preparation before planting on soil nutrient conservation,especially in fine-textured *** nutrient concentrations did not follow the trends observed for soil nutrients nor did they reflect nutrient *** was no evidence of decreased yields over successive *** carbon and nitrogen contents decrease when grasslands are replaced by *** plantations,and therefore a yield limitation may occur in a medium to long-term frame,especially in stands re-established for short-rotation *** residue management and site preparation must be specifically designed for improving so

关键词： Soil texture Grasslands Foliar nutrient concentrations Successive harvest Coppice Eucalyptus grandis

Evolution of the Socio-cognitive Structure of Knowledge Management(1986–2015): An Author Co-citation Analysis

在线全文

学校读者我要写书评

暂无评论

Journal of Data and Information Science 2019年第2期4卷 36-55页

作者： Carlos luis González-Valiente Magda León Santos Ricardo Arencibia-jorge Biblioteca Nacional de Cuba "José Martí" ave.Independencia Facultad de Comunicación Universidad de la Habana San Pedro entre Ermita y Avenida Independencia Empresa de Tecnologías de la Información

Purpose: The evolution of the socio-cognitive structure of the field of knowledge management(KM) during the period 1986–2015 is described. Design/methodology/approach: Records retrieved from Web of Science were submitted to author co-citation analysis(ACA) following a longitudinal perspective as of the following time slices: 1986–1996, 1997–2006, and 2007–2015. The top 10% of most cited first authors by sub-periods were mapped in bibliometric networks in order to interpret the communities formed and their ***: KM is a homogeneous field as indicated by networks results. Nine classical authors are identified since they are highly co-cited in each sub-period, highlighting Ikujiro Nonaka as the most influential authors in the field. The most significant communities in KM are devoted to strategic management, KM foundations, organisational learning and behaviour, and organisational theories. Major trends in the evolution of the intellectual structure of KM evidence a technological influence in 1986–1996, a strategic influence in 1997–2006, and finally a sociological influence in 2007–*** limitations: Describing a field from a single database can offer biases in terms of output coverage. Likewise, the conference proceedings and books were not used and the analysis was only based on first authors. However, the results obtained can be very useful to understand the evolution of KM *** implications: These results might be useful for managers and academicians to understand the evolution of KM field and to(re)define research activities and organisational ***/value: The novelty of this paper lies in considering ACA as a bibliometric technique to study KM research. In addition, our investigation has a wider time coverage than earlier articles.

关键词： Knowledge management Bibliometrics Author co-citation analysis Knowledge domain visualization Social network analysis Intellectual structure

Agronomic evaluation of eight 41 B×110 richter grapevine genotypes as rootstock candidates for mediterranean viticulture

在线全文

学校读者我要写书评

暂无评论

Horticultural Plant Journal 2023年第4期9卷 720-728页

作者： Diana Marín Carlos Miranda Francisco Javier Abad jorge Urrestarazu Blanca Mayor Ana Villa-Llop luis Gonzaga Santesteban Department of Agronomy Biotechnology and Food SciencePublic University of NavarreCampus ArrosadiaPamplona 31006NavarraSpain Institute for Multidisciplinary Research in Applied Biology(IMAB-UPNA) Public University of NavarreCampus ArrosadiaPamplona 31006NavarraSpain Institute for Agri-food Technology and Infrastructure of Navarre(INTIA) Edificio de PeritosAvda.Serapio Huici 22Villava 31610NavarraSpain

Choosing the most appropriate rootstock(s)is a key decision for the profitability of vineyards;therefore,there must be a sufficient range of rootstocks in the market adapted to different environmental conditions and production ***,rootstock-breeding programs have been scarce in recent decades,and most of the rootstocks used today were bred a century ago,when the needs of the sector were very different from *** this work,we aimed to evaluate new rootstock candidates before their introduction in the *** agronomic evaluation was conducted on eight novel rootstock genotypes obtained from the first generation of the cross-pollination of 41 B Millardet et de Grasset(41 B)and 110 Richter(110 R)grafted with‘Syrah’and‘Tempranillo’and planted in a typical vineyard of the Ebro Valley in *** the four consecutive growing seasons(2016–2019),growth,yield and berry composition parameters at harvest were collected.A linear mixed-effects model was constructed,considering year and block as random *** factor analysis and hierarchical clustering on principal components were performed to establish clusters of genotypes with similar *** rootstock candidates showed a very wide performance range compared to their *** trial allowed us to identify two very promising candidates(RG8 and RG10),whose registration as commercial rootstocks is already in progress.

关键词： Vitis vinifera Graft Phenolic quality Vigour Yield

Development and test verification of air temperature model for Chinese solar and Spainish Almeria-type greenhouses

在线全文

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2017年第4期10卷 66-76页

作者： jorge Antonio Sanchez-Molina Li Ming Francisco Rodriguez Jose luis Guzman Wang Hui Yang Xinting The Automatic Control Robotics and Mechatronics Research GroupDepartment of InformaticsceiA3CIESOLUniversity of AlmeriaAlmeria 04120Spain Beijing Research Center for Information Technology in Agriculture/National Engineering Research Center for Information Technology in Agriculture/National Engineering Laboratory for Agri-product Quality Traceability/Key Laboratory for Information Technologies in Agriculture Ministry of AgricultureBeijing 100097China

Growth can be defined as an increment in biomass or an increment in weight or height of the organs of the plant influenced by physiological *** of these processes have their limits genetically determined,but climate and irrigation play an important *** of its importance,microclimate has been extensively studied in the modeling as a surrounding condition which is imposed by the exterior *** main objective of this work was to develop a temperature model based on the energy balance dynamics at two different greenhouse locations-South-eastern Spain and Northern China,and the traditional structures of Chinese solar greenhouse and Almería-type multi-span greenhouse were taken into *** final model was developed by combining the external conditions,the actuator influence and the crop growth,where the temperature is influenced by soil,crop,cover,actuators,back wall and greenhouse *** model took into account the energy lost by convective and conductive fluxes,as well as the energy supplied by solar radiation and heating *** soil and the back wall are the main media for energy *** temperature dynamic was determined by a physical model,which considered the energy balance from a holistic point of view-as a sub-model for a customizable interface among the external climate,the plant and the greenhouse *** influences of different subsystems included in the temperature model were analyzed and *** results showed a high R^(2)value of 0.94 for Beijing and 0.95 for Almeria,and the average error was low,of which the MAE and RMSE were 0.71 and 1.365 for Almeria and 0.62 and 1.102 for Beijing,***,the model can be considered as a powerful tool for control design purposes in microclimate systems.

关键词： air temperature model Chinese solar greenhouse Spanish Almería-type greenhouse energy balance dynamics microclimate