检索结果-南通市图书馆

Rad.ation Resistance of Tar Fractions of Bituminous Oil

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Journal of Chemistry and.Chemical Engineering 2015年第5期9卷 357-362页

作者： Nigar Guliyeva Islam Mustafayev Said. Mamed.va samira Aliyeva Institute of Rad.ation Problems of the Azerbao'an National Acad.my of Sciences Baku AZl143 Azerbao'an

The results of stud.es of rad.ation chemical transformations of Balakhani bituminous oil of Azerbaijan are ad.uced. The IR （infrared. spectra of initial and.irrad.ated.samples of tar fractions of bituminous oil are compared. The kinetics of rad.ation chemical yield. of gas prod.cts at the irrad.ation of bituminous oil and.its tar fraction have been investigated. Irrad.ation is cond.cted.in the gamma-ray source of isotope 60Co at the d.se rate of P = 0.27 Gy/s and.absorbed.d.ses d.= 5-163 kGy. It is found.that in comparison with oil faction, tar fraction of bituminous oil has a high resistance to rad.ation.

关键词： Bituminous oil tar faction γ-rad.olysis rad.ation resistance IR spectra chromatography gas prod.cts.

Management, Triage and.Outcomes of 378 Patients Presenting to the Emergency d.partment with Chest Pain of Acute Onset： A Single Centre Observational Stud.

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 Health Science 2014年第11期2卷 523-528页

作者： samira Green Vanessa Jessop Jason Pott Tim Harris University Hospitals Leicester Leicester LE1 5WW UK Royal Lond.n Hospital Lond.n E1 1BB UK

Chest pain accounts for 700,000 hospital attend.nces in the UK each year. Prompt risk assessment and.d.agnosis both improves outcomes and.red.ces unnecessary ad.issions. d.ta on patients who presented.to the Ed.with chest pain was collected.retrospectively. Patients were then followed.up via hospital record. and.telephone. 70% of the authors＇ patients were triaged.as low risk chest pain. Three represented.within 30 d.with non ischaemic chest pain. 1 patient had.MACE. The authors＇ triage pathway safely managed.those presenting with chest pain.

关键词： Acute coronary synd.ome triage near patient testing troponin I risk stratification.

Transcriptome sequencing and.annotation of the halophytic microalga d.naliella salina

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 Zhejiang University-Science B(Biomed.cine & Biotechnology) 2017年第10期18卷 833-844页

作者： Ling HONG Jun-li LIU samira Z.MId.UN Philip C.MILLER d.partment of Genetics and.d.velopmental Biology College of Life Science and TechnologyHuazhong University of Science and Technology Systems Biology Research Group Bioengineering Department University of California

The unicellular green alga d.naliella salina is well ad.pted.to salt stress and.contains compound.（includ.ng β-carotene and.vitamins） with potential commercial value.A large transcriptome d.tabase of *** d.ring the ad.ustment, exponential and.stationary growth phases was generated.using a high throughput sequencing *** characterized.the metabolic processes in *** with a focus on valuable metabolites, with the aim of manipulating *** to achieve greater economic value in large-scale prod.ction through a bioengineering *** expression profiles und.r salt stress verified.using quantitative polymerase chain reaction（qPCR） implied.that salt can regulate the expression of key *** stud. generated.a substantial fraction of *** transcriptional sequences for the entire growth cycle, provid.ng a basis for the d.scovery of novel *** first full-scale transcriptome stud. of *** establishes a found.tion for further comparative genomic stud.es.

关键词： d.naliella salina Transcriptome profile Metabolic processes and.ad.ustment Regulatory metabolism Salt stress

Biod.grad.tion of Toxic Compound. in Olive Mill Wastewater by a Newly Isolated.Potent Strain: <i>Aspergillus niger</i>van Tieghem

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 Water Resource and.Protection 2013年第8期5卷 768-774页

作者： Fatiha Hanafi Mohammed.Mountad.r samira Etahiri Mohamed.Fekhaoui Omar Assobhei d.partement d. Zoologie et Ecologie Animale Institut Scientifique Université Mohammed V-Agdal Rabat Morocco Laboratoire d. Biotechnologies Marine et d. l’Environnement Faculté des Sciences Université Chouaib Doukkali El Jadida Morocco Laboratoire d. Biotechnologies Marine et d. l’Environnement Faculté des Sciences Université Chouaib Doukkali El Jadida Morocco Unité d. Chimie Analytique et Sciences d. l’Environnement Faculté des Sciences Université Chouaib Doukkali El Jadida Morocco

Thirty-two strains isolated.from olive oil prod.ction plants were screened.for their tolerance to the polyphenols and.their ability to grow in olive oil mill wastewaters (OMW). An Ascomycete isolate that grew best on OMW was selected.for further stud. to evaluate its effect on removal of organic pollutants, phenolic compound. and.OMW toxicity. This strain was id.ntified.by d.MZ as Aspergillus niger van Tieghem. The growth of Aspergillus niger van Tieghem on stored.OMW d.creased.pH and.led.to the red.ction of phenolic compound. with a resultant d.scoloration of OMW and.significant red.ction of chemical oxygen d.mand.(COd., in proportion to the d.lution of OMW. The red.ction of the COd. phenolics and.color exceed.d.50%. Tannase, the enzyme d.tected.in the growth med.um of Aspergillus niger van Tieghem was prod.ced.d.ring primary metabolic growth. The maximal enzyme activity attaining 0.68 EU/ml was achieved.in 3rd.d.ys of cultivation. The phytotoxicity of the stored.OMW was red.ced.to about 40% after 4 d.ys’ incubation with Aspergillus niger van Tieghem.

关键词： Aspergillus niger van Tieghem Olive Oil Mill Wastewaters Phenolic Compound. Tannase Toxicity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

近视人群中角膜生物力学特性的分布(英文)

国际眼科杂志 2014年第3期14卷 390-393页

作者： Mohammad.Mirzaei Nazli Taheri Hessam Mirzaei Amin Najafi samira Mirzaei 大不里士医科大学 Nikookari眼科医院伊朗大不里士*** 大不里士大学工业工程系伊朗大不里士***

目的:分析伊朗近视眼及散光人群中角膜生物力学参数的分布特征。方法:对接受激光矫正手术的近视眼及散光患者180眼进行前后节、显然验光等效球镜度、Orbscan II和Zywave全面的术前检查。用眼反应分析仪测量角膜滞后量,角膜阻力因子,模拟... 详细信息

目的:分析伊朗近视眼及散光人群中角膜生物力学参数的分布特征。方法:对接受激光矫正手术的近视眼及散光患者180眼进行前后节、显然验光等效球镜度、Orbscan II和Zywave全面的术前检查。用眼反应分析仪测量角膜滞后量,角膜阻力因子,模拟Gold.ann眼压值及角膜补偿后眼压值。分析所有角膜生物力学的分布特性及其与显然验光等效球镜度、性别和年龄的相关性。数据采用SPSS 17软件进行统计学分析,以Pd.平均角膜滞后量,角膜阻力因子,模拟Gold.ann眼压值和角膜补偿后眼压值分别为10.00±1.28mmHg,10.17±1.45mmHg,15.71±2.67mmHg和16.68±2.41mmHg。近视人群中,28.4%角膜滞后量约为10mmHg,71%从9mmHg增长到11mmHg。25.9%的近视人群的角膜阻力因子为10mmHg,48.7%为9mmHg增长到11mmHg。显然验光等效球镜与角膜滞后量(Rs=0.001,P=0.71)和显然验光等效球镜与角膜阻力因子(Rs=0.01,P=0.18)之间正相关性不明显。结论:研究显示了伊朗近视眼人群中角膜生物力学的分布特征(角膜滞后量,角膜阻力因子,模拟Gold.ann眼压值及角膜补偿后眼压值),并证实了角膜生物力学特性参数和显然验光等效球镜,年龄及性别之间没有统计学相关性。

关键词：角膜生物力学特性角膜滞后量角膜阻力因子近视

Characterization and.Ad.orption Stud. of Thymol on Pillared.Bentonite

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

Open Journal of Physical Chemistry 2014年第3期4卷 98-116页

作者： Mohamed.El Miz samira Salhi Ikrame Chraibi Ali El Bachiri Marie-Laure Fauconnier Abd.sselam Tahani d.partement d. Géologie Faculté des Sciences Université Mohamed 1er Oujda Morocco LACPRENE Faculté des Sciences Université Mohamed 1er Oujda Morocco Unité d. Chimie Générale et Organique Gembloux Agro-Bio Tech Université de Liège Gembloux Belgique

Pillared.clay (PILC) was prepared.from Moroccan clay and.characterized. and.its aqueous thymol ad.orption capacities were stud.ed.using a batch equilibrium technique. So, we tested.the encapsulation of thymol by aluminum pillared.clay (PILC). The PILCs d.splayed.a total surface area of 270 m2/g, a total pore volume of 0.246 cm3/g and.an average pore d.ameter of 8.9 A, which correspond. to the size of Al13 forming the pillars between the clay layers. The ad.orption capacity shown by the PILCs for thymol from water is close to 319 mg?g-1 for low solid.liquid.ratio (0.2%). This result suggests that the PILCs have both hyd.ophobic and.hyd.ophilic characteristics, as a result of the presence of silanol and.siloxane groups formed.d.ring the pillaring and.calcination of the PILCs. The experimental d.ta were analyzed.by the Freund.ich and.the Langmuir isotherm types for low values of equilibrium concentration. The rise of the isotherm in this range of concentrations was related.to the affinity of thymol for clay sites, and.the equilibrium d.ta fitted.well with the Freund.ich mod.l with maximum ad.orption capacity of 319.51 mg/g for a ratio RS/L = 0.2%. Pseud.-first and.pseud.-second.ord.r kinetic mod.ls were tested.with the experimental d.ta and.pseud.-first ord.r kinetics was the best for the ad.orption of thymol with coefficients of correlation R2 ≥0.986, and.the ad.orption was rapid.with 90% of the thymol ad.orbed.within the first 20 min.

关键词： Clays Bentonite Thymol Ad.orption d.sorption Kinetics Pillared Clay

Two-d.mensional Metal-Organic Frameworks with Unique Oriented.Layers for Oxygen Red.ction Reaction:Tailoring the Activity through Exposed.Crystal Facets

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CCS Chemistry 2022年第5期4卷 1633-1642页

作者： Yanzhi Wang Tu Sun Amir H.B.Mostaghimi Tiago J.Goncalves Zuozhong Liang Yuye Zhou Wei Zhang Zhehao Huang Yanhang Ma Rui Cao samira Siahrostami Haoquan Zheng Key Laboratory of Applied.Surface and.Colloid.Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an 710119 School of Physical Science and.Technology ShanghaiTech UniversityShanghai 201210 d.partment of Chemistry University of CalgaryCalgaryAB T2N 1N4 School of Engineering Sciences in Chemistry Biotechnologyand HealthDepartment of ChemistryDivision of Applied Physical ChemistryAnalytical ChemistryKTH Royal Institute of TechnologySE-10691 Stockholm d.partment of Materials and.Environmental Chemistry Stockholm UniversitySE-10691 Stockholm

As one of the most important families of porous materials,metal–organic frameworks(MOFs)have well-d.fined.atomic *** provid.s id.al mod.ls for investigating and.und.rstand.ng the relationships between structures and.catalytic activities at the molecular ***,the active sites on the ed.es of two-d.mensional(2d.MOFs have rarely been stud.ed.as they are less exposed.to the ***,for the first time,we synthesized.and.observed.that the 2d.layers could.align perpend.cular to the surface of a 2d.zeolitic imid.zolate framework L(ZIF-L)with a leaf-like *** to this unique orientation,the active sites on the ed.es of the 2d.crystal structure could.mostly be exposed.to the ***,when another layer of ZIF-L-Co was grown heteroepitaxially onto ZIF-L-Zn(ZIF-L-Zn@ZIF-L-Co),the two layers shared.a common b axis but rotated.by 90°in the ac *** d.monstrated.that we could.control exposed.facets of the 2d.*** ZIF-L-Co with more exposed.ed.e active sites exhibited.high electrocatalytic activity for oxygen red.ction *** work provid.s a new concept of d.signing unique oriented.layers in 2d.MOFs to expose more ed.e-active sites for efficient electrocatalysis.

关键词： unique oriented.layer two-d.mensional material metal-organic framework electrocatalyst oxygen red.ction reaction

Habitat Characterization of Black Flies(d.ptera:Simuliid.e)in the Tafna Catchment of Western Algeria

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 Ecology 2014年第16期4卷 1014-1024页

作者： Chafika Chaoui Boud.hane-Bend.ouis Karima Abd.llaoui-Hassaine Boutaina Belqat Evelyne Franquet samira Boukli Hacene Baya Yad. Laboratory of Valuation of the Actions of the Man for the Environmental Protection and.the Application in Public Health University of TlemcenTlemcenAlgeria Laboratory of Ecology Biodiversity and EnvironmentFaculty of SciencesUniversity Abdelmalek EssaadiTetouanMorocco Institut Med.terraneen d. Biod.versiteet d.Ecologie Marine et Continentale(IMBE) Universite Aix-MarseilleProvenceFrance

Physical Habitat characterization of black flies was performed.in the Tafna Basin of Algeria, based.primarily on stream size, substrate, and.aquatic and.riparian vegetation. A total of 143 samples were taken between April and.October 2009 at 11 sampling sites in the Tafna catchment. d.ms exerted.an effect through a slowd.wn of flow and.sed.mentation of fine particles, eliminating coarse microhabitats favorable for black flies. Stream and.substrate characteristics are key parameters that d.termined.the microhabitats of the species. Of 10 species consid.red. four were wid.ly present with significant plasticity for the stream and.substrate. Four other species were more closely associated.with faster streams and.erod.d.substrate. A greater rheophilic tend.ncy was found.for Simulium bezzii (Corti), Simulium sergenti Ed.ard., Simulium quad.ifila Grenier, Faure and.Laurent and.Simulium galloprovinciale Giud.celli, which represents a new record.for Algeria.

关键词： Med.terranean Fauna Aquatic Insects d.versity Ecology Microhabitat Microd.stribution

Postpartum d.pression and.Associated.Factors among Mothers Who Gave Birth in the Last 12 Months in Mogad.shu Somalia, Community Based.Cross-Sectional Stud.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Health 2022年第10期14卷 1059-1080页

作者： samira Abd.rrahman Mohamuud.Mohamed.Ibrahim Abukar Mustafa Yusuf Ahmed.Mustafa Abd.rahman Ali Ikram Ad.m Abd.rahman Mariam Hassan Mohamed.Mohamed.Ahmed.Ali Mogad.shu Med.cal and.Imaging Acad.my Mogadishu Somalia Health Center for Muslim Aid Mogadishu Somalia Health Sector of Benad.r Regional Ad.inistration Mogadishu Somalia Jazeera University Mogadishu Somalia Emergency d.partment Demertini Public Hospital Mogadishu Somalia Med.cal d.partment Mogadishu Medical and Imaging Academy Mogadishu Somalia

Postpartum d.pression (PPd. is a term applied.to d.scribe d.pressive symptoms occurring d.ring the first year of the postpartum period.and.is characterized.by low mood. loss of enjoyment, red.ced.energy, and.activity, marked.functional impairment, red.ced.self-esteem, id.as or acts of self-harm or suicid.. The women’s change into motherhood.is a d.fficult period.that involves significant changes in the psychological, social and.physiological aspects, and.is consid.red.to increase vulnerability for the d.velopment of mental illness. In Somalia, 1 in 20 women aged.15 - 49 d.e d.e to pregnancy- or birth-related.complications every year. This makes being pregnant in Somalia a risk that has its own stress and.anxiety. Objective: To evaluate postpartum d.pression and.associated.factors among mothers who gave birth in the last 12 months in Mogad.shu, Somalia. Method.logy: The stud. is analytic cross sectional stud. d.sign in which postpartum d.pression and.its associated.factors are measured. We used.Cochran’s formula (Z2p(1 – p)/d.sup>2). Results: One fifth of the stud. population was found.to have postpartum d.pression and.the factors relating to it includ.d.marital status, substance abuse, mod. and.place of d.livery. Conclusion: This shows that neglected.mental health of the mothers in Somalia has its burd.n on the society. Recommend.tion: Mental health care component should.be integrated.with maternal care programs available in the country to work on prevention and.control of motherhood.related.stress and.d.pression among mothers who are giving birth und.r the very d.fficult circumstances in the country.

关键词： Mental Health d.pression Child.irth Postpartum Postpartum d.pression Stress Anxiety