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胶质细胞/神经元比例在不同种属不同脑区内的非均匀变化及其对脑功能和脑进化的意义

作者： (巴西)苏珊娜·埃尔库拉诺-乌泽尔(suzana herculano-houzel)

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神经损伤与功能重建 2014年第4期9卷 F0003-F0003页

作者： suzana herculano-houzel 唐颖馨 Instituto de Ciências Biomédicas Universidade Federal do Rio de Janeiro Instituto Nacional de Neurociência Translacional

大部分学者认为,胶质细胞与神经细胞的比例随着脑组织大小的增加而增加,在人脑中,大约90%的细胞为胶质细胞。但此观点存在2个方面的错误:一是胶质细胞与神经元的比例不会随着脑组织大小而均匀的增加,二是胶质细胞并非人脑中的主要的细... 详细信息

大部分学者认为,胶质细胞与神经细胞的比例随着脑组织大小的增加而增加,在人脑中,大约90%的细胞为胶质细胞。但此观点存在2个方面的错误:一是胶质细胞与神经元的比例不会随着脑组织大小而均匀的增加,二是胶质细胞并非人脑中的主要的细胞种类。本文将对胶质细胞/神经元比例的研究的起源、支持胶质细胞/神经元比例随脑组织大小增加而增加观点的原始证据、在不同的脑区(如脑白质和全脑)中,胶质细胞/神经元比例是否随脑组织大小增加而增加、以及有关胶质细胞/神经元的比例并非均匀的随脑体积的增加而增加,而是因为神经细胞的平均体积增加而导致神经细胞密度降低的最新的支持证据做一综述。研究认为,胶质细胞/神经元比例的变化与较大体积神经元的代谢消耗较大无关(假设此消耗与神经元的密度变化无关),而仅仅与脑内神经细胞的体积变化有关,而胶质细胞的体积变化较小,这些特点都与脑的生理功能相关。新研究表明,在90 000 000年的进化史中,胶质细胞/神经元的比例在哺乳动物脑内的不同区域非均匀的变化,提示胶质细胞和神经元之间相互作用是脑功能的基础。

关键词：脑代谢脑组织大小细胞大小

The effect of reactive plasticizer on viscoelastic and mechanical properties of solid rocket propellants based on different types of HTPB resin

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Defence Technology（防务技术） 2024年第3期33卷 66-77页

作者： Tihomir Kovacevic Slavko Mijatov Jelena Grzetic suzana Cakic Bojana Fidanovski Sasa Brzic Military Technical Institute Ministry of DefenceRatka Resanovica 1BelgradeSerbia Faculty of Technology University of NisBulevar osloboCenja 124LeskovacSerbia

Conventional plasticizers deteriorate mechanical and viscoelastic properties of the propellants due to their migration upon aging and long-term storage,which affects reliability and safety properties during *** address this issue,conventional plasticizer,dioctyl adipate(DOA),is replaced by reactive one,castor oil(CO).In addition,three different types of HTPB were used to obtain propellants with designed viscoelastic and mechanical *** CO increased propellants viscosity,without a significant impact on the propellant processability,regardless to the type of ***,mechanical properties were different depending on the type of resin,which were further analyzed by gel permeation chromatography(GPC).Addition of CO formed a denser polymer network and shifted T_(g) to higher values,compared to the compositions with *** tensile strength of CO-containing propellants was lower at +20℃ and +50℃ compared to the reference compositions,while the strain at maximum load and strain at break were significantly increased with pronounced plastic deformation,especially for samples at -30℃.The inclusion of CO in the propellants composition gives more room for adjusting a wide range of mechanical properties.

关键词： HTPB-based composite propellants Castor oil Reactive plasticizer Gel permeation chromatography Sol-gel analysis Mechanical and viscoelastic properties

Rock Mass Quality Rating Based on the Multi-Criteria Grey Metric Space

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Computer Modeling in Engineering & Sciences 2024年第9期140卷 2635-2664页

作者： Miloš Gligoric Zoran Gligoric Saša Jovanovic suzana Lutovac Dragan Pamucar Ivan Jankovic Faculty of Mining and Geology University of BelgradeBelgrade11000Serbia Faculty of Technical Sciences University of PrištinaKosovska Mitrovica38220Serbia Department of Operations Research and Statistics Faculty of Organizational SciencesUniversity of BelgradeBelgrade11000Serbia College of Engineering Yuan Ze UniversityTaoyuan City320315TaiwanChina

Assessment of rock mass quality significantly impacts the design and construction of underground and open-pit mines from the point of stability and *** study develops the novel Gromov-Hausdorff distance for rock quality(GHDQR)methodology for rock mass quality rating based on multi-criteria grey metric *** usually presents the quality of surrounding rock by classes(metric spaces)with specified properties and adequate interval-grey *** the distance between surrounding rock sample characteristics and existing classes represents the core of this *** Gromov-Hausdorff distance is an especially useful discriminant function,i.e.,a classifier to calculate these distances,and assess the quality of the surrounding *** efficiency of the developed methodology is analyzed using the Mean Absolute Percentage Error(MAPE)*** existing methods,such as the Gaussian cloud method,Discriminant method,Mutation series method,Artificial neural network(ANN),Support vector machine(SVM),Grey wolf optimizer and Support vector classification method(GWO-SVC)and Rock mass rating method(RMR)are used for comparison with the proposed GHDQR *** share of the highly accurate category of 85.71%clearly indicates compliance with actual values obtained by the compared *** results of comparisons showed that the model enables objective,efficient,and reliable assessment of rock mass quality.

关键词： Rock mass rating multi-criteria class metric space interval-grey numbers

Biological characteristics and clinical management of uveal and conjunctival melanoma

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Oncology Research 2024年第8期32卷 1265-1285页

作者： SNJEŽANA KAŠTELAN ANA DIDOVIĆPAVIČIĆ DARIA PAŠALIĆ TAMARA NIKUŠEVA-MARTIĆ SAMIRČANOVIĆ PETRA KOVAČEVIĆ suzana KONJEVODA School of Medicine University of ZagrebZagreb10000Croatia Department of Ophthalmology Clinical Hospital DubravaZagreb10000Croatia Department of Ophthalmology Zadar General HospitalZadar23000Croatia Department of Medical Chemistry Biochemistry and Clinical ChemistrySchool of MedicineUniversity of ZagrebZagreb10000Croatia Department of Biology and Genetics School of MedicineUniversity of ZagrebZagreb10000Croatia School of Medicine University of SplitSplit21000Croatia Department of Health Studies University of ZadarZadar23000Croatia

Uveal and conjunctival melanomas are relatively rare tumors;nonetheless,they pose a signiﬁcant risk of mortality for a large number of affected *** pathogenesis of melanoma at different sites is very similar,however,the prognosis for patients with ocular melanoma remains unfavourable,primarily due to its distinctive genetic proﬁle and tumor *** of considerable advances in understanding the genetic characteristics and biological behaviour,the treatment of uveal and conjunctival melanoma remains a formidable *** enhance the prospect of success,collaborative efforts involving medical professionals and researchers in theﬁelds of ocular biology and oncology are *** data show a lack of well-designed randomized clinical trials and limited beneﬁts in current forms of treatment for these *** advancements in the development of effective melanoma therapeutic strategies,all current treatments for uveal melanoma(UM)and conjunctival melanoma(CoM)remain unsatisfactory,resulting in a poor long-term *** trials offer hope for positive outcomes in advanced and metastatic tumors.A more comprehensive understanding of the genetic and molecular abnormalities involved in the development and progression of ocular melanomas opens the way for the development of personalized therapy,with various potential therapeutic targets currently under *** comprehension of the molecular pathogenesis of UM and CoM and their speciﬁcities may aid in the development of new and more effective systemic therapeutic agents,with the hope of improving the prognosis for patients with metastatic disease.

关键词： Uveal melanoma Conjunctival melanoma Genetic characteristics Immune checkpoint inhibitors Target molecular inhibitors

Cardiovascular risk factors among older persons with cognitive frailty in middle income country

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World Journal of Clinical Cases 2024年第17期12卷 3076-3085页

作者： Azianah Mohamad Ibrahim Devinder Kaur Ajit Singh Arimi Fitri Mat Ludin Noor Ibrahim Mohamed Sakian Nurul Fatin Malek Rivan suzana Shahar Centre for Healthy Ageing and Wellness Faculty of Health SciencesUniversiti Kebangsaan MalaysiaWilayah Persekutuan Kuala Lumpur 50300Malaysia Basic Medical Sciences University of CyberjayaSelangor Darul EhsanMalaysia 63000Malaysia

BACKGROUND Cognitive frailty,characterized by the coexistence of cognitive impairment and physical frailty,represents a multifaceted challenge in the aging *** role of cardiovascular risk factors in this complex interplay is not yet fully *** To investigate the relationships between cardiovascular risk factors and older persons with cognitive frailty by pooling data from two cohorts of studies in *** A comprehensive approach was employed,with a total of 512 communitydwelling older persons aged 60 years and above,involving two cohorts of older persons from previous *** related to cardiovascular risks,namely sociodemographic factors,and cardiovascular risk factors,including hypertension,diabetes,hypercholesterolemia,anthropometric characteristics and biochemical profiles,were pooled for *** frailty was defined based on the Clinical Dementia Rating scale and Fried frailty *** risk was determined using Framingham risk *** analyses were conducted using SPSS version *** Of the study participants,46.3%exhibited cognitive *** risk factors including hypertension(OR:1.60;95%CI:1.12-2.30),low fat-free mass(OR:0.96;95%CI:0.94-0.98),high percentage body fat(OR:1.04;95%CI:1.02-1.06),high waist circumference(OR:1.02;95%CI:1.01-1.04),high fasting blood glucose(OR:1.64;95%CI:1.11-2.43),high Framingham risk score(OR:1.65;95%CI:1.17-2.31),together with sociodemographic factors,i.e.,being single(OR 3.38;95%CI:2.26-5.05)and low household income(OR 2.18;95%CI:1.44-3.30)were found to be associated with cognitive *** Cardiovascular-risk specific risk factors and sociodemographic factors were associated with risk of cognitive frailty,a prodromal stage of *** identification and management of cardiovascular risk factors,particularly among specific group of the population might mitigate the risk of cognitive frailty,hence preventing dementia.

关键词： Cognitive frailty Older persons Cardiovascular risk factors Frailty Mild cognitive impairment

Assessing Criteria Weights by the Symmetry Point of Criterion (Novel SPC Method)–Application in the Efficiency Evaluation of the Mineral Deposit Multi-Criteria Partitioning Algorithm

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Computer Modeling in Engineering & Sciences 2023年第7期136卷 955-979页

作者： Zoran Gligoric Milos Gligoric Igor Miljanovic suzana Lutovac Aleksandar Milutinovic Faculty of Mining and Geology University of BelgradeBelgrade11000Serbia

Information about the relative importance of each criterion or theweights of criteria can have a significant influence on the ultimate rank of ***,assessing the weights of criteria is a very important task in solving multi-criteria decision-making *** methods are commonly used for assessing the weights of criteria:objective,subjective,and integrated *** this study,an objective approach is proposed to assess the weights of criteria,called SPCmethod(Symmetry Point of Criterion).This point enriches the criterion so that it is balanced and easy to implement in the process of the evaluation of its influence on *** SPC methodology is systematically presented and supported by detailed calculations related to an artificial *** validate the developed method,we used our numerical example and calculated the weights of criteria by CRITIC,Entropy,Standard Deviation and MEREC *** analysis between these methods and the SPC method reveals that the developedmethod is a very reliable objective way to determine the weights of ***,in this study,we proposed the application of SPCmethod to evaluate the efficiency of themulti-criteria partitioning *** main idea of the evaluation is based on the following fact:the greater the uniformity of the weights of criteria,the higher the efficiency of the partitioning *** research demonstrates that the SPC method can be applied to solving different multi-criteria problems.

关键词： Multi-criteria decision-making weights of criteria symmetry point of criterion mineral deposit partitioning algorithm performance evaluation

Analytical geospatial Digital Earth

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International Journal of Digital Earth 2014年第4期7卷 253-255页

作者： Bert Veenendaal Songnian Li suzana Dragicevic Maria Antonia Brovelli Curtin University PerthWAAustralia Ryerson University TorontoONCanada Simon Fraser University BurnabyBCCanada Politecnico di Milano ComoItaly

Digital Earth is a virtual representation of the planet,encompassing all its systems and forms,including human societies,manifested as a multidimensional,multiscale,multi-temporal,and multilayer information facility(Goodchild et al.2012).The Digital Earth vision envelops the vast array of technologies,information frameworks,organizational standards,along with applications across a spectrum of disciplines,and many educational and grassroots operational needs(Guo 2008).

关键词： Earth planet Analytical

Systematically Monitoring,Relational Database and Technology Roadmapping for Trends and Innovation Opportunities in Biopolymers

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Journal of Renewable Materials 2019年第11期7卷 1221-1230页

作者： Selma B.Jaconis Augusto T.Morita Paulo L.A.Coutinho suzana Borschiver Federal University of Rio de Janeiro Avenida Athos da Silveira Ramos149Ilha do FundãoRJ21941-909Brazil SENAI Mario Amato Rua Vitória Maria Medice Ramos330SBCSP09861-640Brazil SENAI CETIQT Rua Magalhães Castro174RiachueloRJ20961-020Brazil

In recent years environmental and sustainability concerns have impacted the global chemical industry and instituted a rush to produce products from renewable raw *** dynamic,complex and turbulent organizational scenario,around themes touching on the issue of sustainable development model,was created involving a large number of different actors:chemical/petrochemical industries,agroindustry companies,oil/gas companies,brand owners and end users,biotechnology startups,governments,universities and *** paper proposed the application of a structured and dynamic method of technological prediction for biopolymers in three levels:systematic monitoring process,relational database and the“alive”Technology Roadmapping visualization *** main objective is to identify strategic actions,business models,the latest´s technologies in development,as well as trends in the field of biopolymers in order to support companies on position themselves in this competitive ***,companies,universities,government agencies and institutions could apply this dynamic and alive methodology to indeed access innovation opportunities,challenges and threats for different industrial segments and to provide dynamic knowledge management collaborating to their strategy including a database crossing for the all organization.

关键词： Biopolymers sustainability renewable systematically monitoring forecasting technology roadmapping knowledge management innovation

Occurrence of retained placenta is preceded by an inflammatory state and alterations of energy metabolism in transition dairy cows

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Journal of Animal Science and Biotechnology 2016年第3期7卷 423-435页

作者： Elda Dervishi Guanshi Zhang Dagnachew Hailemariam suzana M.Dunn Burim N.Ametaj Department of Agricultural Food and Nutritional ScienceUniversity of Alberta

Background： Failure to expel fetal membranes within 24 h of calving is a pathological condition defined as retained placenta（RP）. The objective of this investigation was to evaluate whether there are alterations in several selected serum variables related to innate immunity and carbohydrate and lipid metabolism that precede occurrence of RP in transition Holstein dairy ***： One hundred multiparous Holstein dairy cows were involved in the study. Blood samples were collected from the coccygeal vein during the-8 to ＋4 wks around parturition, once per week before the morning *** healthy control cows（CON） and 6 cows with RP were selected and serum samples at-8,-4, time of diagnosis of disease, and ＋4 wks relative to parturition were used for analyses. All samples were analyzed for lactate, nonesterified fatty acids（NEFA）, β-hydroxybutyrate（BHBA）, interleukin-1（IL-1）, interleukin-6（IL-6）, tumor necrosis factor（TNF）, haptoglobin（Hp）, and serum amyloid A（SAA）.Results： Cows with RP had greater concentrations of serum lactate, IL-1, IL-6, TNF, and SAA in comparison with CON cows. Intriguingly, elevated concentrations of all five variables were observed at-8 and-4 wks before the occurrence of RP compared to healthy cows. Cows with RP also had lower DMI and milk production vs CON animals; however milk composition was not affected by ***： Cows with RP showed an activated innate immunity 8 wks prior to diagnosis of disease. Overall results suggest that serum IL-1, IL- 6, and TNF, and lactate can be used as screening biomarkers to indicate cows that might have health issues during the transition period.

关键词： Innate immunity Retained placenta Serum metabolites Transition dairy cows