检索结果-南通市图书馆

Evolutionary fingerprint, phylogenetic and forest structure of tropical montane Atlantic cloud forests along an elevation gradient

引用

Journal of Mountain Science 2024年第4期21卷 1259-1271页

作者： Ravi Fernandes MARIANO Vanessa Leite REZENDE Cléber Rodrigo de SOUZA Patrícia Vieira POMPEU Rubens Manoel dos SANTOS Carolina Njaime MENDES Aloysio Souza de MOURA felipe santana machado Warley Augusto Caldas CARVALHO Marco Aurélio Leite FONTES Department of Forest Sciences Federal University of LavrasLavras 37200-900Brazil 2Environmental Defence Association of Minas Gerais Belo Horizonte 30360-110Brazil Department of Ecology and Conservation Federal University of LavrasLavras 37200-900Brazil Department of Forest Sciences State University of Mato Grosso do SulAquidauana 79200-000Brazil Agência Zetta Federal University of LavrasLavras 37200-900Brazil. Department of Natural Sciences Federal University of São João del-ReiSão João del-Rei 36307-352Brazil.

Environmental conditions can change markedly over geographical distances along elevation gradients,making them natural laboratories to study the processes that structure *** work aimed to assess the influences of elevation on Tropical Montane Cloud Forest plant communities in the Brazilian Atlantic Forest,a historically neglected *** evaluated the phylogenetic structure,forest structure(tree basal area and tree density)and species richness along an elevation gradient,as well as the evolutionary fingerprints of elevation-success on phylogenetic lineages from the tree *** do so,we assessed nine communities along an elevation gradient from 1210 to 2310 m *** large elevation *** relationships between elevation and phylogenetic structure,forest structure and species richness were investigated through Linear *** occurrence of evolutionary fingerprint on phylogenetic lineages was investigated by quantifying the extent of phylogenetic signal of elevation-success using a genus-level molecular *** results showed decreased species richness at higher elevations and independence between forest structure,phylogenetic structure and *** also verified that there is a phylogenetic signal associated with elevation-success by *** concluded that the elevation is associated with species richness and the occurrence of phylogenetic lineages in the tree communities evaluated in Mantiqueira *** the other hand,elevation is not associated with forest structure or phylogenetic ***,closely related taxa tend to have their higher ecological success in similar ***,we highlight the fragility of the tropical montane cloud forests in the Mantiqueira Range in face of environmental changes(*** warming)due to the occurrence of exclusive phylogenetic lineages evolutionarily adapted to environmental conditions(*** temperature)associated with each elevation range.

关键词： Atlantic Forest Cloud forest Conservation Community ecology Montane forests Phylogenetic diversity Phylogenetic signal

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

3D printed millireactors for process intensification

引用

Chinese Journal of Chemical Engineering 2020年第1期28卷 180-190页

作者： Harrson S.santana Alan C.Rodrigues Mariana G.M.Lopes felipe N.Russo Joao L.Silva Jr Osvaldir P.Taranto School of Chemical Engineering University of CampinasBrazil Federal Institute of Education Science and Technology of South of Minas GeraisBrazil

The scope of the present research aims at demonstrating the 3D printing use in the manufacturing of microchannels for chemical process applications. A comparison among digital model processing applications for 3D print(slicers) and a print layer thickness analysis were performed. The 3D print fidelity was verified in several devices, including the microchannels’ printing with and without micromixer zones. In order to highlight the 3D print potential in Chemical Engineering, the biodiesel synthesis was also carried out in a millireactor manufactured by 3D printing. The millireactor operated under laminar flow regime with a total flow rate of 75.25 ml·min^-1(increment of about 130 times over traditional microdevices used for biodiesel production).The printed millireactor provided a maximum yield of Ethyl Esters of 73.51% at 40 ℃, ethanol:oil molar ratio of7 and catalyst concentration of 1.25 wt% and residence time about 10 s. As a result of flow rate increment attained in the millireactor, the number of required units for scaling-up the chemical processes is reduced. Using the approach described in the present research, anyone could produce their own millireactor for chemical process in a simple way with the aid of a 3D printer.

关键词： Process intensification 3D printer Millireactors Micromixers Microdevices Biodiesel

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

Hospitalizations and in-hospital mortality for inflammatory bowel disease in Brazil

引用

World Journal of Gastrointestinal Pharmacology and Therapeutics 2022年第1期13卷 1-10页

作者： Ana Luiza Vilar Guedes Amanda Lopes Lorentz Larissa Fernandes de Almeida Rios Rios Beatriz Camara Freitas Adriano Gutemberg Neves Dias Ana Luísa Eckhard Uhlein felipe Oliveira Vieira Neto Jobson felipe Soares Jesus Túlio de SáNovaes Torres Raquel Rocha Vitor D Andrade Genoile Oliveira santana Life Sciences Department State University of BahiaSalvador 41150-000BahiaBrazil Sciences of Nutrition Federal University of BahiaSalvador 40110-060BahiaBrazil Medicine Department Universidade Salvador(UNIFACS)Salvador 41820-021BahiaBrazil Medicine and Health Postgraduate Program Federal University of BahiaSalvador 40110-060BahiaBrazil

BACKGROUND Inflammatory bowel disease(IBD)is associated with complications,frequent hospitalizations,surgery and *** introduction of biologic drugs into the therapeutic arsenal in the last two decades,combined with an expansion of immunosuppressant therapy,has changed IBD management and may have altered the profile of hospitalizations and in-hospital mortality(IHM)due to *** To describe hospitalizations from 2008 to 2018 and to analyze IHM from 1998 to 2017 for IBD in *** This observational,retrospective,ecological study used secondary data on hospitalizations for IBD in Brazil for 2008-2018 to describe hospitalizations and for 1998-2017 to analyze *** data were obtained from the Hospital Information System of the Brazilian Unified Health System and population data from demographic *** following variables were analyzed:Number of deaths and hospitalizations,length of hospital stay,financial costs of hospitalization,sex,age,ethnicity and type of hospital *** There was a reduction in the number of IBD hospitalizations,from 6975 admissions in 1998 to 4113 in 2017(trend:y=-0.1682x+342.8;R^(2)=0.8197;P<0.0001).The hospitalization rate also decreased,from 3.60/100000 in 2000 to 2.17 in *** rates varied during the 20-year period,between 2.06 in 2017 and 3.64 in 2007,and did not follow a linear trend(y=-0.0005049x+2.617;R^(2)=0,00006;P=0.9741).IHM rates also varied between regions,increasing in all but the southeast,which showed a decreasing trend(y=-0.1122x+4.427;R^(2)=0,728;P<0.0001).The Southeast region accounted for 44.29%of all *** Northeast region had the highest IHM rate(2.86 deaths/100 admissions),with an increasing trend(y=0.1105x+1.110;R^(2)=0.6265;P<0.0001),but the lowest hospitalization rate(1.15).The Midwest and South regions had the highest hospitalization rates(3.27 and 3.17,respectively).A higher IHM rate was observed for nonelective admissions(2.88),which accounted for 81%of IB

关键词： Inflammatory bowel disease Crohn’s disease Ulcerative colitis Hospitalization Hospital mortality Hospital information systems Epidemiology

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

Is transcranial magnetic stimulation useful in posttraumatic disorders?

引用

Neural Regeneration Research 2015年第9期10卷 1528-1528页

作者： Wellingson Silva Paiva Iuri santana Neville felipe Fregni Manoel Jacobsen Teixeira Neurotrauma Unit Division of Neurosurgery at University of S?o Paulo Medical School Research Center at Hospital Samaritano Laboratory of Neuromodulation Spaulding Rehabilitation Hospital at Harvard Medical School

Dear editor, We have read with great interest the recent paper by Herrold et al. （2014） published in Neural Regeneration Research. There is evidence that approximately 20-90% of patients with mild traumatic brain injury develop posttraumatic symptoms, and 40% of these patients have persistent symptoms after trauma （Bazarian et al., 1999; Koski et al., 2015）. Therefore, mild traumatic brain injury becomes an important cause of temporary disability. Indeed, posttraumatic disorders have a significant epidemiological relevance, even though it is still undervalued in most of the trauma centers （Bazarian et al., 1999） and there is no specific treatment method （Koski et al., 2015）. Recently, many neurological and posttraumatic stress disorders had been treated with noninvasive brain stimulation （Boggio et al., 2010; Fox et al., 2012）.

关键词： TMS Is transcranial magnetic stimulation useful in posttraumatic disorders

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

Hepatobiliary phases in magnetic resonance imaging using liverspecific contrast for focal lesions in clinical practice

引用

World Journal of Hepatology 2022年第7期14卷 1459-1469页

作者： Daniel Alvarenga Fernandes Eduardo Andreazza Dal Lago felipe Aguera Oliver Bruna Melo Coelho Loureiro Daniel Lahan Martins Thiago José Penachim Ricardo Hoelz de Oliveira Barros José de ArimatéiaBatista Araújo Filho Larissa Bastos Eloy da Costa Áurea Maria Oliveira da Silva Elaine Cristina de Ataíde Ilka de Fátima santana Ferreira Boin Nelson Marcio Gomes Caserta Department of Radiology School of Medical SciencesUniversity of Campinas-UNICAMPCampinas 13083-888São PauloBrazi Department of Radiology Medical SchoolSão Paulo State University-UNESPBotucatu 18618-970São PauloBrazil Instituto de Radiologia Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo-InRad/HC-FMUSPSão Paulo 05403-010SPBrazil Department of Radiology Sírio-Libanês HospitalSão Paulo 05652-900SPBrazil Department of Pathology School of Medical SciencesUniversity of Campinas-UNICAMPCampinas 13083-888São PauloBrazil Liver Transplant Unit Department of SurgerySchool of Medical SciencesUniversity of Campinas-UNICAMPCampinas 13083-888São PauloBrazil

BACKGROUND Challenging lesions,difficult to diagnose through non-invasive methods,constitute an important emotional burden for each patient regarding a still uncertain diagnosis(malignant x benign).In addition,from a therapeutic and prognostic point of view,delay in a definitive diagnosis can lead to worse *** of the main innovative trends currently is the use of molecular and functional methods to *** liver-specific contrast agents havebeen developed and studied in recent years to improve the performance of liver magnetic resonance imaging(MRI).More recently,one of the contrast agents introduced in clinical practice is gadoxetic acid(gadoxetate disodium).AIM To demonstrate the value of the hepatobiliary phases using gadoxetic acid in MRI for the characterization of focal liver lesions(FLL)in clinical *** Overall,302 Lesions were studied in 136 patients who underwent MRI exams using gadoxetic acid for the assessment of *** radiologists independently reviewed the MRI exams using four stages,and categorized them on a 6-point scale,from 0(lesion not detected)to 5(definitely malignant).The stages were:stage 1-images without contrast,stage 2-addition of dynamic phases after contrast(analogous to usual extracellular contrasts),stage 3-addition of hepatobiliary phase after 10 min(HBP 10’),stage 4-hepatobiliary phase after 20 min(HBP 20’)in addition to stage *** The interobserver agreement was high(weighted Kappa coefficient:0.81-1)at all stages in the characterization of benign and malignant *** diagnostic weighted accuracy(Az)was 0.80 in stage 1 and was increased to 0.90 in stage *** of the hepatobiliary phase increased Az to 0.98 in stage 3,which was also 0.98 in stage *** The hepatobiliary sequences improve diagnostic *** growing potential in the era of precision medicine,the improvement and dissemination of the method among medical specialties can bring benefits in the management of patients w

关键词： Liver Liver neoplasms Liver transplantation Medical oncology Diagnostic imaging Magnetic resonance imaging

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

Production Optimization of Biodiesel from Frying Oil Waste to Reduce the Environmental Impacts

引用

Journal of Chemistry and Chemical Engineering 2014年第6期8卷 621-625页

作者： Silvério Catureba da Silva Filho Thadeu Alfredo Farias Silva Arthur de Queiroz e Silva Amanda Carvalho Miranda felipe Araájo Calarge José Carlos Curvelo santana Elias Basile Tambourgi Laboratory of Processes and Quality Control Nine July University Sao Paulo 05001-100 Brazil School of Chemical Engineering State University of Campinas Campinas 13083-852 Brazil

The objective of this study was to reduce the environmental impacts of used frying oil waste through the production of biodiesel. A 2 2 factorial planning has been used to evaluate the influences of alcohol/oil and reaction time on the biodiesel production yield. The optimal condition to produce the biodiesel has been found by use of the response surface methodology and analysis of variance to obtain the fitting model. This study was conducted in Campinas city, Brazil, where were collected the waste oil. An analysis of ecological cost also has been developed. Cooking oils collected from Campinas homes were mixed with ethanol in planned proportions (1:9, 1:7 and 1:5) and were transesterified at 60 °C and planned reaction times (30, 60 or 90 min), in order to obtain biodiesel, using 0.1% NaOH as a catalyst. The results of the physical-chemical analyses demonstrated that the biodiesels obtained possessed characteristics close to those required by Brazilian standards. This fuel could be used in fleets of buses, trucks and machines, or even sold to fuel distributors, which results in a solving between US$0.8 and US$4.5 millions. Thus, Campinas would gain environmental credits and become a sustainable city.

关键词：生物柴油生产优化环境废物煎炸油响应面分析法反应时间生产成品率

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

哈瓦那辣椒悬浮培养的体细胞胚发生

引用

辣椒杂志 2015年第3期13卷 44-50页

作者： Patricia Yolanda Zapata-Castillo Adriana-Canto Flick Guadalupe López-Puc Anabel Solís-Ruiz felipe Barahona-Pérez Nancy santana-Buzzy 张亚利 Unidad de Bioquímica y Biología Molecular de Plantas Centro de Investigación Científica de Yucatán Calle 43 #130 Chuburná de Hidalgo Mérida Yucatán 97200 México 湖南省蔬菜研究所

本文对不同培养基、不同外植体类型（节点、节间、下胚轴、半粒种子、果段）诱导哈瓦那辣椒产生体细胞胚胎的情况进行了评估。在添加9．05μM 2,4-D、3％蔗糖和0．8％植物凝胶的MS基本培养基中，25±2℃，连续30d光照（40～50μmol·m^2... 详细信息

本文对不同培养基、不同外植体类型（节点、节间、下胚轴、半粒种子、果段）诱导哈瓦那辣椒产生体细胞胚胎的情况进行了评估。在添加9．05μM 2,4-D、3％蔗糖和0．8％植物凝胶的MS基本培养基中，25±2℃，连续30d光照（40～50μmol·m^2／s）条件下，诱导胚性愈伤组织。形成的愈伤组织将被转移到组成相同的液体培养基中。仅当以下胚轴外植体，用含3．4IxM噻苯隆的MS培养基对其进行诱导时，才能产生体细胞胚。本研究建立了辣椒“细胞悬浮培养的体细胞胚发生”的一种实验方案。

关键词：体细胞胚发生噻苯隆细胞悬液哈瓦那辣椒

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

FTIR Characterization of Gelatin from Chicken Feet

引用

Journal of Chemistry and Chemical Engineering 2012年第11期6卷 1029-1032页

作者： Poliana Fernandes de Almeida Suzana Caetano da Silva Lannes felipe Araujo Calarge Thiago Michel de Brito Farias Jose Carlos Curvelo santana Federal Institute of Education ofMato Grosso Sao Vicente Campus Cuiaba 78106-000 Brazil Faculty of Pharmaceutical Sciences University of Sao Paulo Sao Paulo 05508-000 Brazil Laboratory of Biotechnology and Quality Control Nove de Julho University Sao Paulo 05001-100 Brazil

The objective of this study was characterizing the gelatin from the chicken feet by FTIR (Fourier transform infrared) spectroscopy. Two gelatin samples were prepared for the experiment which were extracted of 200 g of chicken feet by a thermal bath of 4% acetyl acid solution at 60 °C. A commercial gelatin was used to compare the results. FTIR spectra of gelatin samples were recorded using a Nicolet iS5 FTIR spectrometer equipped with an ATR/iD3 with argon horizontal cell in which the spectra were varied in the range of 400-4,000 cm-1 at 16 °C. The results showed that FTIR spectra of the chicken feet gelatin had the most with the vibration peak at wave numbers of 1,652.01 cm-1 to the amide I, of 1,539.87 cm-1 to the amide II, of 1,241.29 cm-1 to the amide III, of 2,923.72 cm-1 to the amide B and of 3,399.56 cm-1 to the amide A. The collagen composition of the chicken feet gelatins was twotimes larger than the commercial gelatin and the vibration bands to beef gelatin have been different from chicken feet gelatins. This demonstrates that chicken feet gelatins are very good nutritional quality when compared to the commercial gelatin.

关键词：红外光谱表征明胶鸡爪 FTIR光谱仪傅立叶变换光谱特征水平细胞蛋白组成

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

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

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：