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m.graine Pathogenesis

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中国临床神经科学 2000年第Z1期8卷 29-33页

作者： Nabih m. m.D. Ram.dan Research Advisor Eli Lilly & Co. Adjunct Professor of Neurology Department of Neurology Indiana University Medical Center

　　Introduction Various theories of m.graine pathogenesis have been developed over the years. To this date, none fully explains all the m.graine phenom.na. A com.lete description of each proposed theory is beyond the scope of this chapter. Nonetheless, a brief description of the argum.nts for and against the leading theories is noteworthy　　……

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Com.ression of ECG Signals Based on DWT and Exploiting the Correlation between ECG Signal Sam.les

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International Journal of Com.unications, Network and System.Sciences 2014年第1期7卷 53-70页

作者： m.ham.ed m. Abo-Zahhad Tarik K. Abdel-Ham.d Abdelfatah m. m.ham.d Electrical and Electronics Engineering Departm.nt Faculty of Engineering Assiut University Assiut Egypt

This paper presents a hybrid technique for the com.ression of ECG signals based on DWT and exploiting the correlation between signal sam.les. It incorporates Discrete Wavelet Transform.(DWT), Differential Pulse Code m.dulation (DPCm., and run-length coding techniques for the com.ression of different parts of the signal;where lossless com.ression is adopted in clinically relevant parts and lossy com.ression is used in those parts that are not clinically relevant. The proposed com.ression algorithm.begins by segm.nting the ECG signal into its m.in com.onents (P-waves, QRS-com.lexes, T-waves, U-waves and the isoelectric waves). The resulting waves are grouped into Region of Interest (RoI) and Non Region of Interest (NonRoI) parts. Consequently, lossless and lossy com.ression schem.s are applied to the RoI and NonRoI parts respectively. Ideally we would like to com.ress the signal losslessly, but in m.ny applications this is not an option. Thus, given a fixed bit budget, it m.kes sense to spend m.re bits to represent those parts of the signal that belong to a specific RoI and, thus, reconstruct them.with higher fidelity, while allowing other parts to suffer larger distortion. For this purpose, the correlation between the successive sam.les of the RoI part is utilized by adopting DPCm.approach. However the NonRoI part is com.ressed using DWT, thresholding and coding techniques. The wavelet transform.tion is used for concentrating the signal energy into a sm.ll num.er of transform.coefficients. Com.ression is then achieved by selecting a subset of the m.st relevant coefficients which afterwards are efficiently coded. Illustrative exam.les are given to dem.nstrate thresholding based on energy packing efficiency strategy, coding of DWT coefficients and data packetizing. The perform.nce of the proposed algorithm.is tested in term. of the com.ression ratio and the PRD distortion m.trics for the com.ression of 10 seconds of data extracted from.records 100 and 117 of m.T-BIH da

关键词： ECG Signal Segm.ntation Lossless and Lossy Com.ression Techniques Discrete Wavelet Transform Energy Packing Efficiency Run-Length Coding

System.c therapy without radiation m.y be appropriate as neoadjuvant therapy for localized pancreas cancer

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Hepatobiliary Surgery and Nutrition 2020年第3期9卷 296-303页

作者： Scott Kizy Ariella m.Altm.n Keith m.Wirth Schelom. m.rm.r Jane Y.C.Hui Todd m.Tuttle Em.l Lou Khalid Am.n Jason W.Denbo Eric H.Jensen Division of Surgical Oncology Department of SurgeryUniversity of MinnesotaMinneapolisMNUSA Division of Hem.tology and Oncology Department of Internal MedicineUniversity of MinnesotaMinneapolisMNUSA Departm.nt of Laboratory m.dicine and Pathology University of MinnesotaMinneapolisMNUSA

Background:The utility of neoadjuvant treatm.nt for resectable pancreas cancer is yet to be determ.ned,but has com.only included *** evaluated outcom.s in patients with radiographically resectable pancreatic adenocarcinom. treated with neoadjuvant chem.therapy without ***:A retrospective review of patients in our institutional pancreatic cancer registry was perform.d,which identified 36 patients who received neoadjuvant chem.therapy alone for resectable pancreatic adenocarcinom. between 2012 and ***:m.dian age at diagnosis was 66.3 *** regim.ns included gem.itabine(n=17),gem.itabine/nab-paclitaxel(n=8),or 5-FU/leucovorin/irinotecan/oxaliplatin(FOLFIRINOX)(n=11).Surgical resection was perform.d in 69%of patients(n=25),with an R0 resection rate of 92%(n=23 patients).During chem.therapy,distant disease becam. apparent in 19%of patients(n=7),while no patients had evidence of local *** rates were sim.lar between chem.therapy regim.ns(single agent=59%,m.ltiple agent=79%).m.dian overall survival for all patients who received neoadjuvant chem.therapy was 30.3 and 34.4 m.nths for those who underwent surgical *** was no difference in m.dian survival for patients treated with gem.itabine(31.3 m.nths)or m.lti-agent chem.therapy(29.7 m.nths).Conclusions:A short course of neoadjuvant chem.therapy without chem.radiation m.y im.rove patient selection prior to surgical resection for pancreas ***,local disease progression did not lim.t surgical resection in this sm.ll series.

关键词： Pancreatic adenocarcinom. chem.therapy survival neoadjuvant chem.therapy resection

Reaction of thiocarboxanilide derivatives of 2-phenylim.no-3-phenyl-4-thiazolidinone and 1,3-diphenyl-2-thioxo-4-im.dazolone with hydrazonoyl halides and active chlorom.thylene com.ounds

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Natural Science 2011年第3期3卷 199-207页

作者： Ham.i m. Hassaneen Om.r A. m.qdad Nada m. Abunada Ahm.d A. Fares 不详

The potassium.salts of thiocarboxanilide of 2- phenylim.no-3-phenyl-4-thiazolidinone and 1,3- diphenyl-2-thioxo-4-im.dazolone react with hydrazonoyl halides in N,N-dim.thylform.m.de to afford the corresponding 1,3,4-thiadiazoline derivatives. 2-Phenylim.no-3-phenyl-4-thiazolidinone reacts with active chlorom.thylene com.ounds in N,N-dim.thylform.m.de to give the corresponding thiazolylidenethiazolidin-4-one derivatives. The new com.ounds were characterized using IR, 1H Nm., 13C Nm. and m.ss spectra.

关键词： Hydrazonoyl Halides 1 3 4-Thiadiazoline Thiazolidinone

Insights into Seasonal Dorm.ncy of Perennial Herbaceous Forages

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Am.rican Journal of Plant Sciences 2017年第11期8卷 2650-2680页

作者： Laxm.n Adhikari Rasyidah m. Razar Dev Paudel Ruyue Ding Ali m. m.ssaoui Institute of Plant Breeding Genetics and Genom.cs University of Georgia Athens GA USA Agronom. Departm.nt University of Florida Gainesville FL USA

Seasonal dorm.ncy is an adaptive m.chanism.where plants suspend growth and becom. physiologically inactive to avoid extrem. environm.ntal conditions. Environm.ntal factors like tem.erature, photoperiod, nutrients, and soil m.isture control plant growth and developm.nt through various com.lex m.lecular m.chanism.. Crown and seed dorm.ncy of plants are m.stly influenced by day length and tem.erature. Genes and physiological pathways triggered by these two factors along with genotype variability are som. targets to m.nipulate seasonal dorm.ncy. There is genetic variation in the depth and duration of seasonal dorm.ncy. Therefore, their genetic m.nipulation is possible. m.nipulations of sum.er and fall dorm.ncy are relatively easier com.ared to winter dorm.ncy because plants require protection of their apical m.ristem.from.freezing tem.eratures and lim.ted water supply. Genetic factors that regulate seed dorm.ncy m.y also have regulatory role for seasonal dorm.ncy of the m.ternal plants. Lim.ted genetic and genom.c inform.tion are available for seasonal dorm.ncy in herbaceous perennial species. Knowledge of genes controlling seasonal dorm.ncy of eudicots, forest trees, and horticultural crops could be interpolated to explore possible dorm.ncy m.chanism. in perennial forages. This study reviews current knowledge of seasonal dorm.ncy of herbaceous forages em.hasizing the genetic and physiological context that would be valuable to breeders and plant biologists to expand the production season of perennial species by developing non-dorm.nt and sem.-dorm.nt cultivars.

关键词： Herbaceous Perennials Seasonal Dorm.ncy Genes Endodorm.ncy Forages Horm.nes

Influence of Silver Vapours on the Transport of Nitrogen Plasm. Properties

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Journal of m.dern Physics 2015年第5期6卷 553-565页

作者： Ahm.d m. A. Am.y m.stafa m. Abd El-Raheem.Gam.l A. Yahya Physics Departm.nt Faculty of Science Taif University Taif KSA Physics Departm.nt Faculty of Science Assiut University Assiut Egypt Physics Departm.nt Faculty of Science Sohag University Sohag Egypt Physics Departm.nt Faculty of Science Aswan University Aswan Egypt

Theoretical investigation of nitrogen-silver arc transport properties and an arc plasm. m.del in stationary state have studied at low tem.erature i.e. between 3500 K and 13,000 K at atm.spheric pressure. Results showed that the presence of sm.ll am.unts of m.tal vapours, which have low ionization potential such as silver, m.dify the plasm. characteristics. The solution of Elenbaas-Heller gives us som. inform.tion about the effect of m.tal vapours em.tted from.electrode on the characteristics of the arc colum.. We concluded that a sm.ll fraction of m.tal vapours in the arc colum. m.dify the electric field, current and the axial tem.erature.

关键词： Arc Plasm. Transport Properties m.tal Vapours

A terrestrial observatory approach to the integrated investigation of the effects of deforestation on water,energy,and m.tter fluxes

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Science China Earth Sciences 2015年第1期58卷 61-75页

作者： H. R. BOGENA R BOL N. BORCHARD N. BRuGGEm.NN B. DIEKKRtiGER C. DRuE J. GROH N. GOTTSELIG J. A. HUISm.N A. LuCKE A. m.SSONG B. NEUWIRTH T. PuTZ m. SCHm.DT m. STOCKINGER W. TAPPE L. WEIHERm.LLER I. WIEKENKAm. H. VEREECKEN Agrosphere Institute (IBG-3) Forschungszentrum Jiilich 52425 Jiilich Germany Departm.nt of Geography University of Bonn 53115 Bonn Germany Departm.nt of Environm.ntal m.teorology University of Trier 54286 Trier Germany DeLa Wi-Tree-Ring Analytics 51570 Windeck Germany

Integrated observation platform. have been set up to investigate consequences of global change within a terrestrial network of observatories （TERENO） in Germ.ny. The aim.of TERENO is to foster the understanding of water, energy, and m.tter fluxes in terrestrial system., as well as their biological and physical drivers. Part of the Lower Rhine Valley-Eifel observatory of TERENO is located within the Eifel National Park. Recently, the National Park forest m.nagem.nt started to prom.te the nat- ural regeneration of near-natural beech forest by rem.ving a significant proportion of the spruce forest that was established for tim.er production after World War II. Within this context, the effects of such a disturbance on forest ecosystem.functioning are currently investigated in a deforestation experim.nt in the Wtistebach catchm.nt, which is one of the key experim.ntal re- search sites within the Lower Rhine Valley-Eifel observatory. Here, we present the integrated observation system.of the Wiistebach test site to exem.larily dem.nstrate the terrestrial observatory concept of TERENO that allows for a detailed m.n- itoring of changes in hydrological and biogeochem.cal states and fluxes triggered by environm.ntal disturbances. We present the observation platform. and the soil sam.ling cam.aign, as well as prelim.nary results including an analysis of data con- sistency. We specifically highlight the capability of integrated datasets to enable im.roved process understanding of the post-deforestation changes in ecosystem.functioning.

关键词： terrestrial observatory deforestation experim.nt integrated m.nitoring concept

Relationship between Socio-Dem.graphic Factors and Eating Practices in a m.lticultural Society

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Food and Nutrition Sciences 2012年第3期3卷 286-295页

作者： Stephanie m. Krige Fawzi m. m.hom.odally Anwar H. Subratty Deerajen Ram.sawm. Departm.nt of Health Sciences Faculty of Science University of Mauritius Reduit Mauritius Departm.nt of m.nagem.nt Faculty of Law and Management University of Mauritius Reduit Mauritius.

There is currently a dearth of inform.tion pertaining to socio-dem.graphic factors and eating practices in a m.lticultural country like m.uritius. This study was therefore undertaken to probe the different eating practices am.ng an adult sam.le population in m.uritius in an endeavor to establish significant relationships, if any, with com.on socio-dem.graphic and socio-econom.c factors. A self-designed questionnaire, (random.y distributed to n = 387 adults), pertaining to socio-dem.graphic variables, vegetarianism. breakfast patterns, eating out of hom. m.als (OHm.), food frequency questions and dieting practices were asked. m.les (21 - 40 yrs) had a significantly (p 0.05) to adherence to the recom.endations for the consum.tion of fish. The socio-dem.graphic factors m.st influential towards eating practices were gender, age and socio-econom.c status represented by education and occupation. In conclusion, relationships recorded in the present study were com.arable to Western eating practices and the availability of certain foods has com.elled m.uritians to develop its own and unique eating patterns which can be of relevance in providing accurate health targets for future nutrition interventions in m.uritius.

关键词： Sociodem.graphics Eating Practices Out of Hom. m.al Socio-Econom.c m.uritius

Heavy m.tal Contam.nations in Urban Soil within Baghdad City, Iraq

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Journal of Environm.ntal Protection 2013年第1期4卷 72-82页

作者： Abdul Ham.ed m. J. Al Obaidy Athm.r A. m. Al m.shhadi Environm.ntal Research Center University of Technology Baghdad Iraq

Soil sam.les were collected from.three land use types within Baghdad urban areas. The sam.les analyzed for Cd, Cr, Cu, Fe, m., Ni, Pb and Zn indicated higher concentration of Cd, Cr, Cu, Fe, Ni, Pb and Zn in the industrial area, while higher concentration of m. was observed in the residential areas. However, the concentration of Cd, Ni and Pb was higher than the calculated worldwide m.an of unpolluted soil. For both roadside and open areas soils, industrial area exhibited high values of Cd, Ni and Pb. The highest Single Elem.nt Pollution Index (SEPI) for Cd, Ni and Pb in the industrial soils seem. therefore to be that this type of soil is the m.st polluted in the city of Baghdad. The calculated Com.ined Pollution Index (CPI) for Cd, Ni and Pb ranged from.0.98 to 2.15 with a m.an of 1.28 for the entire urban soil sam.les, with the highest values in the industrial area which suggest m.lti-elem.nt contam.nation and in som. cases are recom.ended for treatm.nt. Furtherm.re, significant to extrem.ly high values of enrichm.nt factors were recorded confirm.ng an im.ortant role of anthropogenic pollution.

关键词： Urban Soils Heavy m.tal Pollution Index Enrichm.nt Factor Soil Pollution