检索结果-南通市图书馆

Somatostatin receptor scintigraphy in the follow up of neuroendocrine neoplasms of appendix

World Journal of Clinical Cases 2020年第17期8卷 3697-3707页

作者： Jelena Saponjski Djuro Macut Dragana Sobic-Saranovic Sanja Ognjanovic Ivana Bozic Antic Djordje Pavlovic vera artiko Center for Nuclear Medicine Clinical Center of SerbiaBelgrade 11000Serbia Clinic for Endocrinology Diabetes and Metabolic DiseasesClinical Center of SerbiaFaculty of MedicineUniversity of BelgradeBelgrade 11000Serbia Center for Nuclear Medicine Clinical Center of Serbia Faculty of Medicine University of BelgradeBelgrade 11000Serbia University Children's Clinic Belgrade 11000Serbia

BACKGROUND Neuroendocrine tumors of appendix(ANETs)known as carcinoids,are rare endocrine neoplasms originated from enterochromaffin cells of gastrointestinal *** are the third most frequent(16.7%)gastrointestinal neuroendocrine tumors,with the incidence of 0.08-0.2 cases/100000 during one *** ANETs occur in 0.2%-0.7%of emergency surgical resections because of suspected appendicitis which is usually the first manifestation of *** there are a lot of papers about application of somatostatin receptor scintigraphy in gastrointestinal neuroendocrine tumors,there are very rare sporadic cases described about ANETs *** To establish the role of somatostatin receptor scintigraphy(SRS)in the management of patients with neuroendocrine tumors of appendix(ANET).METHODS The total of 35 patients was investigated,23 females and 12 males,average age(43.7±17.3 years).All patients had histological diagnosis of ANET(34 carcinoids of appendix and one tubular carcinoid).Majority of tumors have been found incidentally during surgery of:Acute appendicitis(n=15),perforated appendicitis(n=2),ileus(n=3),hysterectomy(n=3),ruptured ovarian cyst(n=2),caecal volvulus(n=1),while 9 patients had diagnosis of appendiceal tumor before the *** patients had tumor grade(G)G1,12 G2 and 6 *** right hemicolectomy was performed in 13,while the rest of the patients had appendectomy *** was done early(2 h)and late(24 h)after *** of 740 MBq technetium-99 m ethylenediamine-N,N’-diacetic acid Hydrazinonicotinyl-Tyr3-Octreotide(technetium-99 m-Tektrotyd,Polatom,Poland).SRS was performed for restaging in all the patients after *** There were 12 true positive(TP),19 true negative,3 false positive and 1 false negative SRS *** of the method was 92.31%,specificity was 86.36%,positive predictive value was 80.00%,negative predictive value was 95.00%and accuracy 88.57%.Receiver operating characteristics analysis showed t

关键词： Somatostatin receptor scintigraphy Carcinoid Appendix Follow up Nuclear medicine Radionuclide

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Monoclonal immunoscintigraphy for detection of metastasis and recurrence of colorectal cancer

引用

World Journal of Gastroenterology 2011年第19期17卷 2424-2430页

作者： vera artiko Ana Koljevic Markovi Dragana obi-aranovi Milorad Petrovi Andrija Anti Mirjana Stojkovi Marinko Zuvela Djordjije aranovi Milica Stojkovi Neboja Radovanovi Danijel Galun Aleksandar Milovanovi Jovica Milovanovi Anica Bobi-Radovanovi Zoran Krivokapic Vladimir Obradovi School of Medicine University of BelgradeClinical Center of Serbia National Research Cancer Center Institute for Ocupational Medicine Belgrade University School of Medicine Paterova 2 11000 BelgradeSerbia

AIM:To assess the clinical role of monoclonal immunoscintigraphy for the detection of metastasis and recurrence of colorectal ***:Monoclonal immunoscintigraphy was performed in patients operated on for colorectal adenocar-cinoma suspected of local recurrence and metastatic *** results were compared with conventional ***:Immunoscintigraphic investigation was done in 53 *** recurrence occurred in 38 patients,and was confirmed by other diagnostic modalities in *** 15 patients,immunoscintigraphic findings were negative,and confirmed in 14 with other diagnostic *** analysis confirmed good correlation of immunoscintigraphic findings and the results of conventional diagnostics and the level of tumor marker carcinoembryonic *** analysis of parameters of radiopharmaceutical groups imacis,indimacis and oncoscint presented homogenous characteristics all of three *** analysis of immunoscintigraphic target focus was clearly improved using ***:Immunoscintigraphy is highly specific and has a good predictive value in local recurrence of colorectal cancer.

关键词： Immunoscintigraphy Monoclonal antibodies Colorectal carcinoma Tumor metastasis Tumor recurrence

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Color Doppler sonography and angioscintigraphy in hepatic Hodgkin's lymphoma

引用

World Journal of Gastroenterology 2009年第26期15卷 3269-3275页

作者： Mirjana V Stojkovi vera M artiko Irena B Radoman Slavko J Knezevi Snezana M Luki Mirko D Kerkez Nebojsa S Leki Andrija A Anti Marinko M Zuvela Vitomir I Rankovi Milorad N Petrovi Dragana P obi Vladimir B Obradovi Institute for Digestive Diseases Clinical Center of Serbia Institute for Nuclear Medicine Clinical Center of Serbia Gastroenterology Department Clinical Center Podgorica Gastroenterology Department Clinical Center Kragujevac

AIM： To estimate the characteristics of Color Doppler findings and the results of hepatic radionuclide angiography （HRA） in secondary Hodgkin＇s hepatic lymphoma. METHODS： The research included patients with a diagnosis of Hodgkin＇s lymphoma with metastatic focal lesions in the liver and controls. Morphologic characteristics of focal liver lesions and hemodynamic parameters were examined by pulsed and Color Doppler in the portal, hepatic and splenic veins were examined. Hepatic perfusion index （HPI） estimated by HRA was calculated. was observed. Lesions were mostly hypoechoic and mixed, solitary or multiple. Some of the patients presented with dilated splenic veins and hepatofugal blood flow. A pulse wave was registered in the centre and at the margins of lymphoma. The average velocity of the pulse wave was higher at the margins （P 〉 0.05）. A continuous venous wave was found only at the margins of lymphoma. There was no linear correlation between lymphoma size and velocity of pulse and continuous wave （r = 390, P 〈 0.01）. HPI was significantly lower in patients with lymphomas than in controls （P 〈 0.05）, pointing out increased arterial perfusion in comparison to portal perfusion. CONCLUSION： Color Doppler ultrasonography is a sensitive method for the detection of neovascularization in Hodgkin＇s hepatic lymphoma and estimation of its intensity. Hepatic radionuclide angiography can additionally help in the assesment of vascularisation of liver lesions.

关键词： Color Doppler ultrasonography Hodgkin's disease Lymphoma Liver Radionuclide angiography Velocity Hepatic artery Portal vein Blood flow Splenomegaly

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Litter production and leaf nutrient concentration and remobilization in response to climate seasonality in the central Amazon

引用

Journal of Forestry Research 2024年第3期35卷 131-141页

作者： Ricardo Antonio Marenco Saul Alfredo Antezana-vera Daniela Pereira Dias Luiz Antonio Candido Instituto Nacional de Pesquisas da Amazonia Coordenagao de Uso da Terra e Mudanca ClimaticaAv.Andre Araujo 2936ManausAM69067-375Brazil Programa de pos-Graduagao em Agricultura no Tropico Umido Instituto Nacional de Pesquisas da Amazonia-INPAManausAMBrazil Unidade Academica de Ciencias Agrarias Universidade Federal de JataiBR 364km 195JataiGO 75801-615Brazil

Litterfall is the largest source of nutrients to for-est soils of tropical ***,variability in lit-terfall production,nutrient remobilization,and changes in leaf nutrient concentration with climate seasonality remain largely unknown for the central *** study meas-ured litterfall production,leaf nutrient remobilization,and leaf area index on a forest plateau in the central *** was measured at monthly intervals during 2014,while nitrogen,phosphorus,potassium,calcium and mag-nesium concentrations of leaf litter and canopy leaves were measured in the dry and rainy seasons,and remobilization rates *** area index was also recorded in the dry and rainy *** litterfall varied from 33.2(in the rainy season)to 87.6 g m^(-2) in the dry season,while leaf area index increased slightly in the rainy *** seasonality had no effect on concentrations of nitrogen,calcium,and magnesium,whereas phosphorous and potassium responded to rainfall seasonality *** phosphorous increased,potassium decreased during the dry *** seasons,nitrogen,potassium,and phosphorous decreased in leaf litter;calcium increased in leaf litter,while magnesium remained unaffected with leaf ***,the five nutrients had similar remobilization rates over the *** absence of climate seasonality on nutrient remobilization suggests that the current length of the dry season does not alter nutrient remobilization rates but this may change as dry periods become more prolonged in the future due to climate change.

关键词： Throughfall Nutrient cycling Climatic seasonality Leaf mass per area

来源：

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

Mesenchymal stem cells in wound healing:A bibliometric analysis as a powerful research tool

引用

World Journal of Stem Cells 2024年第9期16卷 827-831页

作者： vera V Voinova Daria V Vasina Anton P Bonartsev Faculty of Biology MV Lomonosov Moscow State UniversityMoscow 119234Russia NF Gamaleya National Research Centre for Epidemiology and Microbiology Ministry of Health of the Russian FederationMoscow 123098Russia

Bibliographic analysis is still very rarely used in experimental basic study *** comprehensive bibliometric analysis of scientific literature on research progress and challenges in stem cell therapy for diabetic chronic wounds,which was conducted in the work of Shi et al can be a case study and a source of valuable information for writing reviews and experimental papers in this *** experimental studies on a role of mesenchymal stem cells(MSCs)in wound healing that are published in 2023-2024,such as Zhang et al in 2023,Hu et al in 2023,Wang et al in 2023 are certainly also subjects for applying this powerful tool to analyze current research,challenges and perspectives in this *** is due to the fact that these studies have addressed a great variety of aspects of the application of MSCs for the treatment of chronic wounds,such as using both the cells themselves and their various products:Sponges,hydrogels,exosomes,and genetic *** a wide variety of directions in the field of study and biomedical application of MSCs requires a deep understanding of the current state of research in this area,which can be provided by bibliometric ***,the use of such elements of bibliographic analysis as publication count by year and analysis of top-10 keywords calculated independently or cited from bibliometric analysis studies can be safely recommended for every basic study manuscripts,primarily for the“Introduction”section,and review.

关键词： Bibliometric analysis Mesenchymal stem cells Wound healing Tissue engineering Dressing Hydrogels Matrix Exosomes

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Local Differential Privacy Trajectory Protection Method Based on Temporal and Spatial Restrictions for Staying Detection

引用

Tsinghua Science and Technology 2024年第2期29卷 617-633页

作者： Weiqi Zhang Zhenzhen Xie Akshita Maradapu vera Venkata Sai Qasim Zia Zaobo He Guisheng Yin College of Computer Science and Technology Harbin Engineering UniversityHarbin 150001China School of Computer Science and Technology Shandong UniversityQingdao 266237China Department of Computer Science Georgia State UniversityAtlantaGA 30303USA College of Information Science and Technology Jinan UniversityGuangzhou 510632China

The widespread availability of GPS has opened up a whole new market that provides a plethora of location-based ***-based social networks have become very popular as they provide end users like us with several such services utilizing GPS through our ***,when users utilize these services,they inevitably expose personal information such as their ID and sensitive location to the *** to untrustworthy servers and malicious attackers with colossal background knowledge,users'personal information is at risk on these ***,many privacy-preserving solutions for protecting trajectories have significantly decreased utility after *** have come up with a new trajectory privacy protection solution that contraposes the area of interest for ***,Staying Points Detection Method based on Temporal-Spatial Restrictions(SPDM-TSR)is an interest area mining method based on temporal-spatial restrictions,which can clearly distinguish between staying and moving ***,our privacy protection mechanism focuses on the user's areas of interest rather than the entire ***,our proposed mechanism does not rely on third-party service providers and the attackers'background knowledge *** test our models on real datasets,and the results indicate that our proposed algorithm can provide a high standard privacy guarantee as well as data availability.

关键词： local-differential privacy stay points detection trajectory data areas of interest temporal-spatial clustering

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The ILux^(®) compared to the mechanical meibomian gland expression for the treatment of moderate and severe meibomian gland dysfunction

引用

International Journal of Ophthalmology(English edition) 2024年第6期17卷 1042-1048页

作者： María Ximena Núñez Andrea Acosta-Ortega Guillermo Raul vera-Duarte Catalina Gómez-Duarte Unit of Cornea Cataract and Refractive SurgeryVision Sana Research GroupClínica de Oftalmología de CaliFaculty of Medicine Pontificia Universidad Javeriana CaliCali 760031Colombia Department of Ophthalmology Faculty of Medicine Pontificia Universidad Javeriana CaliCali 760031Colombia Department of Ophthalmology Hospital de ClínicasNational University of AsunciónAsunción 111421Paraguay

AIM:To compare the safety and effectiveness of eyelid treatment with the ILux®-MGD Treatment System in one session versus five sessions of mechanical meibomian gland expression(MMGE)in patients with moderate to severe meibomian gland dysfunction(MGD).METHODS:A prospective,randomized,open-label,and controlled clinical trial that compared one session of the ILux®MGD Treatment System versus five sessions of MMGE in both eyes of 130 patients aged≥18y with Ocular Surface Disease Index(OSDI)scores≥13,total meibomian gland scores(MGS)of<15 in the lower eyelid of each eye,and non-invasive tear break-up time(NI-TBUT)<10s,who were randomized 1:1 to ILux®or ***:The mean age was 58±*** total MGS scores in both treatment groups were *** follow-up,there were significant differences in total MGS and per sector with P<*** analysis was performed using generalized estimating equations corresponding to the generalized linear model for repeated means to determine the treatment relationship with total MGS,NIBUT,and *** was a significant difference between ILux®and MMGE(P<0.001)at follow-up from the first to the twelfth month in MGS,NI-BUT,and OSDI *** adverse events were ***:ILux®treatment compared to MMGE significantly improves symptoms and signs in patients with moderate to severe MGD for one year without adverse events.

关键词： meibomian gland dysfunction ILux® ocular surface dry eye

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A review of recent advances of kesterite thin films based on magnesium,iron and nickel for photovoltaic application:insights into synthesis,characterization and optoelectronic properties

引用

Clean Energy 2024年第2期8卷 217-238页

作者： Nelson Mauricio Espinel Pérez Enrique vera López Jairo Alberto Gómez Cuaspud Juan Bautista Carda Castelló Grupo de Investigación en Integridad y Evaluación de Materiales(GIEM).Instituto para la Investigación e Innovación en Ciencia y Tecnología de Materiales(INCITEMA).Universidad Pedagógica y Tecnológica de Colombia Av.Central del Norte 39-115.Tunja-BoyacáColombia Servicio Nacional de Aprendizaje(Sena).Centro Minero.Vereda MorcáSector Batá.Sogamoso-Boyacá Colombia Universidad Jaume I.Grupo de Química Inorgánica y Orgánica.Castellón de la Plana Campus del Riu Sec.Castellón de la PlanaEspaña

This review emphasizes the recent advancements and prospects of thin-film kesterite-based photovoltaic(PV)applications using magnesium,iron and *** quest for novel materials employed in solar cells has resulted in incorporating these elements into the composition of kesterite as substitutes or modifiers(dopants)for *** integration has induced notable repercussions on the structural,optoelectronics and morphological properties,which are *** first section of this paper offers a comprehensive review of the general characteristics of kesterite *** crucial materials exhibit a high absorption coefficient(104 cm-1)and an optical band gap of 1.0-1.8 ***,they are free of critical raw materials,non-toxic and *** second section depicts the substitution or modification of zinc by magnesium in ***,this paper provides a comprehensive review of the quaternary and pentanary systems Cu_(2)MgSn(S,Se)_(4) and Cu_(2)Zn_(1-x)Mg_(x)SnS_(4),highlighting their advantages and *** the last section,a review of the quaternary or pentanary systems is conducted,namely Cu_(2)ZnxFe_(1-x)SnS_(4) and Cu_(2)ZnxNi_(1-x)SnS_(4),along with their effects on optoelectronic *** conclusion,various methods for obtaining modified or substituted kesterite materials using magnesium,iron and nickel have demonstrated sustainability,scalability for industrial production and potential candidacy as substitutes for conventional PV *** prospects for pentanary materials(Cu_(2)Zn_(1-x)Mg_(x)SnS_(4),Cu_(2)Zn_(1-x)FexSnS_(4) and Cu_(2)Zn_(1-x)NixSnS_(4))are to overcome the efficiency record of kesterite reported in 2014,which was 12.6%for Cu_(2)ZnSn(S,Se)_(4),and to enhance its optoelectronic properties through synthesis conditions that comply with the principles of green chemistry.

关键词： kesterite thin film magnesium iron nickel substitutes or modifiers novel materials sustainability

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant triterpenoid saponins function as susceptibility factors to promote the pathogenicity of Botrytis cinerea

引用

Molecular Plant 2024年第7期17卷 1073-1089页

作者： Francisco J.Escaray Amelia Felipo-Benavent Cristian J.Antonelli Begona Balaguer Maria Pilar Lopez-Gresa Pablo vera Instituto de Biologia Molecular y Celular de Plantas Universidad Politecnica de Valencia-C.S.l.CCiudad Politecnica de la InnovacionEdificio 8Eacceso GIngeniero Fausto Elios/n46022ValenciaSpain

The gray mold fungus Botrytis cinerea is a necrotrophic pathogen that causes diseases in hundreds of plant species,including high-value *** polyxenous nature and pathogenic success are due to its ability to perceive host signals in its *** this study,we found that laticifer cells of Euphorbia lathyris are a source of susceptibility factors required by *** to cause ***,poor-in-latex(pil)mutants,which lack laticifer cells,show full resistance to this pathogen,whereas lot-of-latex mutants,which produce more laticifer cells,are *** S factors are triterpenoid saponins,which are widely distributed natural products of vast structural *** downregulation of laticifer-specific oxydosqualene cyclase genes,which encode the first committed step enzymes for triterpene and,therefore,saponin biosynthesis,conferred disease resistance to ***,the Medicago truncatula Iha-1 mutant,compromised in triterpenoid saponin biosynthesis,showed enhanced ***,the application of different purified triterpenoid saponins pharmacologically complemented the diseaseresistant phenotype ofpil and hla-1 mutants and enhanced disease susceptibility in different plant *** found that triterpenoid saponins function as plant cues that signal transcriptional reprogramming in ***,leading to a change in its growth habit and infection strategy,culminating in the abundant formation of infection cushions,the multicellular appressoria apparatus dedicated to plant penetration and biomass destruction in *** together,these results provide an explanation for how plant triterpenoid saponins function as disease susceptibility factors to promote *** pathogenicity.

关键词： Euphorbia lathyris laticifer cell latex appressorium infection cushion necrotrophic fungi

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of crop residues for animal consumption and soil enhancement on the electricity generation potential of residues:A case study of Sawla-Tuna-Kalba district,Ghana

引用

International Journal of Agricultural and Biological Engineering 2024年第4期17卷 276-287页

作者： Augustine Awaafo Edward A.Awafo Meisam Mahdavi David vera Gilbert Ayine Akolgo Emmanuel Amankwah Francisco Jurado Department of Electrical Engineering University of JaénLinares 23700JaénSpain Department of Computer and Electrical Engineering University of Energy and Natural ResourcesSunyani P.O.Box 214Ghana Department of Agricultural and Bioresources Engineering University of Energy and Natural ResourcesSunyani P.O.Box 214Ghana

Many studies have estimated the potential of crop residues for energy generation globally and recognized its great potential,especially in rural areas where on-grid electricity is ***,crop residues have other equally important uses as animal feed and as mulch for soil enhancement,especially in rural farming ***,most of the known studies have neglected the estimation of the quantity of crop residues that will be required for feeding animals and also for the enhancement of soil through mulching in their energy potential estimation from crop *** these two important uses can lead to the over-exploitation of the residues for energy generation at the expense of conservation agriculture practices as well as depriving animals of quality feed which can lead to low crop yield and animal production,with the ability to cause hunger and *** study has assessed the potential of electricity generation from agricultural residues in the Sawla-Tuna-Kalba district of Ghana using gasification technology,taking cognizance of the proportion of residues needed for animal consumption and soil *** results of the study indicate that out of the 207646.22 t of residues that can be generated from maize,yam,cassava,millet,sorghum,and groundnut,26830.36 t(representing 13%)will be required by sheep,goats,and cows for consumption,and 13936.17 t(representing 7%)will be required for mulching soils where the crops are ***,it was found that a total of 592.17 MW∙h of electricity can be generated from crop residues without animal consumption and soil enhancement needs,while 461.89 MW∙h could be generated from the residues,considering animal feed and soil *** study has indicated that it is not enough to consider soil enhancement and animal feeding in agricultural biomass power generation through recovery factors without the exact quantification of residues required for these purposes since this can lead to a vi

关键词： animal feed crop residue electricity generation soil enhancement

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：