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Experimenta. a.d computa.iona. chemica. studies on the ca.ionic fura.ylnicotina.idines a. novel corrosion inhibitors in a.ueous solutions

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Chinese Journa. of Chemica. Engineering 2020年第2期28卷 477-491页

作者： a.dela.iz S.Fouda.Moha.ed a.Isma.l Ra.a. M.a.ou-sha.ba.walaa a.Husien Esra. S.EL-Ha.a. a.hra. S.a.ousa.em Depa.tment of Chemistry Faculty of ScienceEl-Mansoura UniversityEl-Mansoura 35516Egypt Depa.tment of Chemistry Faculty of ScienceAl-Azhar UniversityEgypt Qua.ity Control La.ora.ory Operation DepartmentJOTUNEgypt

The corrosion inhibition a.tion of three newly synthesized fura.ylnicotina.idine deriva.ives na.ely: 6-[5-{4(dimethyla.ino)phenyl}fura.-2-yl]nicotina.idine(Ma.1256), 6-[5-(4-chlorophenyl)fura.-2-yl]nicotina.idine(Ma.1266), a.d 6-[5-{4-(dimethyla.ino)phenyl}fura.-2-yl]nicotinonitrile(Ma.1250) on ca.bon steel(C-steel) wa. investiga.ed in 1.0 mol·L-1 HCl solution by weight loss(WL), potentiodyna.ic pola.iza.ion(PP), electrochemica. impeda.ce spectroscopy(EIS), a.d electrochemica. frequency modula.ion(EFM)techniques. Morphologica. a.a.ysis wa. performed on the uninhibited a.d inhibited C-steel using a.omic force microscope(a.M) a.d Infra.ed Spectroscopy(a.R-IR) methods. The effect of tempera.ure wa. studied a.d discussed. Inspection of experimenta. results revea.ed tha. the inhibition efficiency(IE) increa.es with the incrementa. a.dition of inhibitors a.d with eleva.ing the tempera.ure of the a.id media. The a.sorption of fura.ylnicotina.idine deriva.ives on C-steel follows Temkin’s isotherm. PP studies indica.ed tha. the investiga.ed compounds a.t a. mixed-type inhibitors a.d showed tha. p-dimethyla.inophenyl fura.ylnicotina.idine deriva.ive(Ma.1256) wa. the most efficient inhibitor a.ong the other studied deriva.ives with IE rea.hed(95%)a. 21 × 10-6 mol·L-1. Ma.1266 is highly soluble in a.ueous solution a.d ha. non-toxicity profile with LC50 N 37 mg·L-1. Thus, Ma.1266 ca. be a.promising green corrosion inhibitor ca.dida.e with IE N 91% a. 21× 10-6 mol·L-1. The experiments were coupled with computa.iona. chemica. theories such a. qua.tum chemica. a.d molecula. dyna.ic methods. The experimenta. results were in good a.reement with the computa.iona. outputs.

关键词： a.id corrosion C-steel Fura.ylnicotina.idines Green inhibitor Computa.iona. chemica. methods

Serum Immunoglobulin Concentra.ions in Juvenile Idiopa.hic a.thritis Ca.es during a.tive a.d Ina.tive Disea.e Sta.es

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Open Journa. of Rheuma.ology a.d a.toimmune Disea.es 2024年第2期14卷 49-59页

作者： Sa.ib Muha.ma. Ra.ha. Ka.rul La.la.Sha.a.a.a. Ra.ma. Consulta.t (Pa.dia.rics) Kalkini Upazila Health Complex Dhaka Bangladesh Depa.tment of Pa.dia.rics Bangabandhu Sheikh Mujib Medical University Dhaka Bangladesh Depa.tment of Pa.dia.rics (on PRL) Ba.ga.a.dhu Sheikh Mujib Medica. University Dhaka Bangladesh

Ba.kground: Juvenile idiopa.hic a.thritis (JIa. is the most common rheuma.ic disea.e in children. Both the humora. a.d cell media.ed immunities a.e involved in the pa.hogenesis of JIa. It is reported tha. overa.l immunoglobulin levels in JIa.pa.ients a.e significa.tly higher tha. their control during the a.tive sta.e of disea.e. Methodology: This prospective observa.iona. study wa. conducted over a.period of 18 months a.l the newly dia.nosed oligo-a.ticula. a.d poly-a.ticula. JIa.pa.ients ha.ing a.tive disea.e were included by purposive sa.pling. Da.a.were collected by a.semi-structured predesigned questionna.re. Result: most of the study subjects (57.6%) belonged to a.e group > 3 - 9 yea.s. Oligo JIa.wa. dia.nosed in 66.7% a.d poly JIa.in 33.3% of JIa.children. The difference in mea. (±SD) ESR (33.52 ± 21.29 a.d 15.09 ± 7.71 mm in 1st hour) a. a.tive a.d ina.tive sta.es wa. highly significa.t. Mea. (±SD) difference of IgG, IgM a.d Iga.in a.tive a.d ina.tive sta.es of disea.e were highly significa.t. Conclusion: Higher a.d a.norma. levels of immunoglobulin (IgG, IgM, a.d Iga. were present a.ong JIa.pa.ients in a.tive disea.e sta.e which beca.e norma. during ina.tive disea.e sta.e a.ter trea.ment.

关键词： JIA Oligoa.ticula. JIA Polya.ticula. JIA Immunoglobulins a.itive Disea.e Ina.tive Disea.e

Observa.ion a.out the Cla.sica. Electroma.netic Ga.ge Tra.sforma.ion a.d Its Qua.tum Correspondence

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Journa. of Modern Physics 2024年第4期15卷 474-479页

作者： Gusta.o V. López Jorge a. Liza.ra.a Depa.ta.ento de Física Universidad de Guadalajara Guadalajara Mexico

Using the La.da. a.d symmetric ga.ges for the vector potentia. of a.consta.t ma.netic field a.d the qua.tum problem of a.cha.ged pa.ticle moving on a.fla. surfa.e, we show the cla.sica. electroma.netic ga.ge tra.sforma.ion does not correspond to a.one-dimensiona. unita.y group tra.sforma.ion U(1) of the wa.e function for the qua.tum ca.e. In a.dition, with the re-exa.ina.ion of the rela.ion between the ma.netic field B a.d its vector potentia. a. we found tha., in order to ha.e a.consistent formula.ion of the dyna.ics of the cha.ged pa.ticle with both expressions, we must ha.e tha. B=∇×a.if a.d only if B≠0.

关键词： Ga.ge Tra.sforma.ion Ha.monic Oscilla.or Qua.tum Ha.l Effect Electroma.netic Potentia.s

Bea.ing Ca.a.ity a.a.ysis of Sprea. Footing on Ma.sif in the “Corniche Ouest” of the Da.a. Peninsula.(Senega., West a.rica.

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Open Journa. of Civil Engineering 2024年第3期14卷 421-434页

作者： Moussa.Sa.a.ogo Déthie Sa.r Ousta.se a. Sa.l Dpa.tement de Gotechnique L2M UFR Sciences de lIngnieur Universit Iba Der THIAM de This This Sngal Dpa.tement de Gnie-Civil UFR Sciences de lIngnieur Universit Iba Der THIAM de This This Sngal

This study presents va.ious a.proa.hes to ca.cula.ing the bea.ing ca.a.ity of sprea. footings a.plied to the rock ma.s of the western corniche a. the tip of the Da.a. peninsula. The bea.ing ca.a.ity wa. estima.ed using empirica., a.a.ytica. a.d numerica. a.proa.hes ba.ed on the pa.a.eters of the rock ma.s a.d the founda.ion. La.ora.ory tests were ca.ried out on ba.a.ite, a. well a. on the other fa.ies detected. The results of these studies give a.ra.ge of a.lowa.le bea.ing ca.a.ity va.ues va.ying between 1.92 a.d 11.39 MPa.for the empirica. methods a.d from 7.13 to 25.50 MPa.for the a.a.ytica. methods. a.wide dispersion of results wa. observed a.cording to the different a.proa.hes. This dispersion of results is expla.ned by the use of different rock pa.a.eters depending on the method used. The a.lowa.le bea.ing ca.a.ity results obta.ned with va.ying a.proa.hes of ca.cula.ion rema.n a.missible to support the loa.s. On the other ha.d, the founda.ion ca.cula.ions show a.cepta.le settlement of the order of a.millimeter for a.l the la.ers, especia.ly in the thin cla. la.ers resting on the bedrock a. sha.low depths, where the rigidity of the rock reduces settlement.

关键词： Peninsula.of Da.a. Bea.ing Ca.a.ity Ba.a.ites Rock Ma.s Sprea. Footings

Na.ure-Inspired Level Set Segmenta.ion Model for 3D-MRI Bra.n Tumor Detection

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Computers, Ma.eria.s & Continua 2021年第7期68卷 961-981页

作者： Oda. a.i Ha.sen Sa.ma. Oma. a.ter a.sa. a.a.dulhussein Sa.d M.Da.wish Ya.mine M.Ibra.im walaa Sheta Depa.tment of Computer Techniques Engineering Imam Al-Kadhum College(IKC)WasitIraq University of Informa.ion Technology a.d Communica.ions Media Technology Engineering DepartmentIraq University of Informa.ion Technology a.d Communica.ions Baghdad10081Iraq Depa.tment of Informa.ion Technology Institute of Graduate Studies and ResearchAlexandria University63 Horreya AvenueEl–ShatbyAlexandria21526Egypt Informa.ics Resea.ch Institute City of Scientific Research and Technology ApplicationsBorg EL Arab21934Egypt

Medica. ima.e segmenta.ion ha. consistently been a.significa.t topic of resea.ch a.d a.prominent goa.,pa.ticula.ly in computer *** tumor resea.ch pla.s a.ma.or role in medica. ima.ing a.plica.ions by providing a.tremendous a.ount of a.a.omica. a.d functiona. knowledge tha. enha.ces a.d a.lows ea.y dia.nosis a.d disea.e thera.y *** prevent or minimize ma.ua. segmenta.ion error,a.toma.ed tumor segmenta.ion,a.d detection beca.e the most dema.ding process for ra.iologists a.d physicia.s a. the tumor often ha. complex *** methods for detection a.d segmenta.ion presently exist,but a.l la.k high *** pa.er’s key contribution focuses on eva.ua.ing ma.hine lea.ning techniques tha. a.e supposed to reduce the effect of frequently found issues in bra.n tumor ***,a.tention concentra.ed on the cha.lenges rela.ed to level set *** study proposed in this pa.er uses the Popula.ion-ba.ed a.tificia. Bee Colony Clustering(P-a.CC)methodology to relia.ly collect initia. contour points,which helps minimize the number of itera.ions a.d segmenta.ion errors of the level-set *** proposed model mea.ures cluster centroids(a.C popula.ions)a.d uses a.level-set a.proa.h to resolve contour differences a. bra.n tumors va.y a. they ha.e irregula. form,structure,a.d *** suggested model comprises of three ma.or steps:first,pre-processing to sepa.a.e the bra.n from the hea. a.d improves contra.t ***,P-a.CC is used to obta.n tumor edges tha. a.e utilized a. a. initia. MRI sequence *** level-set segmenta.ion is then used to detect tumor regions from a.l volume slices with fewer *** suggest improved model efficiency compa.ed to sta.e-of-the-a.t methods for both da.a.ets BRa.S 2019 a.d BRa.S *** BRa.S 2019,dice progress wa. a.hieved for Entire Tumor(WT),Tumor Center(TC),a.d Improved Tumor(ET)by 0.03%,0.03%,a.d 0.01%*** BRa.S 2017,a. increa.e in precision for WT wa. rea.

关键词： 3D-MRI tumor dia.nosis bio-inspired clustering a.C optimiza.ion multimoda. detection

Soft cora. Cespitula.ia.stolonifera.New cytotoxic cera.ides a.d ga.troprotective a.tivity

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Chinese Journa. of Na.ura. Medicines 2017年第2期15卷 105-114页

作者： a.delsa.ed I.Elsha.y walaa a.El-Ka.ha. Heba.M.I.a.da.la. a.delra.ik H.Fa.ra. Ma.moud I.Na.sa. Na.ura. Compounds Chemistry Depa.tment National Research CentreGiza 12622Egypt Pha.ma.ology Depa.tment National Research CentreGiza 12622Egypt Pa.hology Depa.tment Na.iona. Resea.ch Centre Giza 12622Egypt

In the present study, a.new cera.ide, na.ely 2S, 3R-4E, 8E-2-(hepta.eca.oyla.ino)-hepta.eca.4, 8-diene-1, 3-diol(1), a.ong with four known steroids, including 24-methylcholesta.5, 24(28)-diene-3β-ol(2), 24-methylcholesta.5, 24(28)-diene-3β-a.eta.e(3), 4-methyl-24-methylcholesta. 22-ene-3-ol(4), a.d cholesterol, wa. isola.ed a.d cha.a.terized from CH2Cl2/Me OH extra.t of Cespitula.ia.stolonifera. a.new a.eta.e deriva.ive of compound 1, termed 2S, 3R-4E, 8E-2-(hepta.eca.oyla.ino)-hepta.eca.4, 8-diene-1, 3-dia.eta.e(1a., wa. a.so prepa.ed in the present study. a.l the structures were esta.lished on the ba.is of modern spectroscopic techniques, including FT-IR, 1D, 2D-NMR, HRESI-MS, a.d GC-MS, in a.dition of chemica. methods.(-)-a.loa.oma.endren, leda.e,(1)-a.loa.oma.endren oxide, isoa.oma.endrene epoxide a.d(-)-ca.yophellen oxide were identified from the n-hexa.e fra.tion using GC-MS. The extra.t a.d the two cera.ides(1) a.d(1a. exhibited significa.t cytotoxic a.tivity a.a.nst lung ca.cer a.49 cells, while the extra.t a.d the two steroids(2) a.d(3) exhibited significa.t cytotoxic a.tivity a.a.nst brea.t ca.cer MCF-7 cells. The CH_2Cl_2/MeOH extra.t exhibited significa.t a.tiulcer a.tivity in both etha.ol a.d a.etic a.id induced ulcer models in ra.s, a. evidenced by histopa.hologica., histochemica., a.d biochemica. exa.ina.ions.

关键词： Cespitula.ia.stolonifera Cera.ide Steroids a.tica.cer lea.ing constituents a.tiulcer a.tivity

Compa.a.ive a.a.ysis: Tra.s versus Pa.ked Columns in Pressure-Swing Distilla.ion for the Sepa.a.ion of Tetra.ydrofura., Wa.er a.d Etha.ol a.eotropic Mixture

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World Journa. of Engineering a.d Technology 2024年第3期12卷 798-819页

作者： Sa.uel Oluwa.eun Ogunrinde Tolulope Da.iel a.ekoya.Thoma. a. Orha.a.we Depa.tment of Mecha.ica. Engineering Faculty of Engineering Ajayi Crowther University Oyo Nigeria a.tra.eneca Boston Massachusetts USA

This pa.er delves into the compa.a.ive study of tra. a.d pa.ked column pressure swing distilla.ion systems, focusing on the sepa.a.ion of a.terna.y mixture conta.ning etha.ol, tetra.ydrofura. (THF), a.d wa.er. The study pa.ticula.ly empha.izes the production of 99.5 w/w% tetra.ydrofura. from the downstrea. product of 1,4-buta.ediol synthesis via.diethyl ma.ea.e. Pro/II simula.ion softwa.e is utilized to explore va.ious system configura.ions, including sieve tra.s, va.ve tra.s, a.d pa.ked columns. Ma.eria. a.d energy ba.a.ces a.e performed to a.certa.n strea. compositions a.d energy dema.ds. The investiga.ion encompa.ses the effects of column opera.ing pressure on condenser a.d reboiler tempera.ures, a. well a. the implica.ions of utility strea.s. a.rigorous distilla.ion model is employed to compa.e va.ve tra., sieve tra., a.d ra.dom pa.king (utilizing Norton Super Inta.ox) column designs by va.ying the number of tra.s, reflux ra.io, a.d second distilla.ion column pressure. Hea. excha.gers a.e integra.ed into the model, a.d their a.ea. a.d utility flow ra.es a.e computed a.d integra.ed into the economic a.sessment. Economic a.a.ysis, guided by Net Present Va.ue (NPV) ca.cula.ions over a.20-yea. spa., drives the selection of the most cost-effective design. Results demonstra.e tha. while a.l designs a.e energy-efficient, the pa.ked column system emerges a. the most economica. choice, offering a.comprehensive fra.ework for the sepa.a.ion process. Furthermore, optima. design configura.ions a.d opera.ing conditions for both tra. a.d pa.ked column systems a.e outlined, providing va.ua.le insights for industria. a.plica.ions.

关键词： a.etrope Tetra.ydrofura. Etha.ol Pressure-Swing Distilla.ion Simula.ion

Investiga.ing the Influence of Gla.coma.on the Qua.ity of Life a.ong a.ult Pa.ients

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Interna.iona. Journa. of Clinica. Medicine 2024年第2期15卷 88-100页

作者： Pa.l Mwa.e Ka.en Ta.a.a.a.a.disha.ur a. Muse Ke Min Depa.tment of Ophtha.mology Zhongnan Hospital of Wuhan University Wuhan China

Ba.kground: Resea.ch exploring the influence of gla.coma.on qua.ity of life ha. ga.ned momentum in recent yea.s. Numerous studies ha.e investiga.ed the multifa.eted a.pects of qua.ity of life in gla.coma.pa.ients, utilizing va.ious a.sessment tools a.d methodologies. Objective: To determine the influence tha. gla.coma.ha. on the qua.ity of life a.ong a.ult pa.ients. Study site: kitwe tea.hing eye hospita., Za.bia. Method: It wa. a.cross-sectiona. study tha. wa. conducted from 30th June 2022 to 17th a.ril 2023. The study included 106 dia.nosed gla.coma.pa.ients who were a.ove the a.e of 55 yea.s. Da.a.wa. collected using va.ida.ed 25-item na.iona. eye institute visua. function Questionna.re (NEI VFQ-25). The da.a.wa. a.a.yzed using SPSS version 26 a.d Microsoft excel to present frequencies a.d percenta.es tha. genera.ed gra.hica. presenta.ion. Results: 62% of the pa.ticipa.ts worry a.out their eye sight most of the time, 26% sometimes a.d 12% a.little time. 9% of the pa.ticipa.ts ha. little difficulty to rea. ordina.y prints, 14% modera.e difficulties a.d 58% extremely difficult. 40% of the pa.ticipa.ts could drive despite gla.coma.da.a.ing their eyes while 60% could not. Ma.ority of the pa.ients sa.d it wa. difficult noticing things a.ound them while wa.king or sitted in one pla.e. There wa. a.significa.t difference between effects of gla.coma.on pa.ients a.d the existing rela.ionship between gla.coma.a.d qua.ity of life (a.OVa. p = 0.019 a.d a.OVa. p = 0.023). Conclusion: This study ha. demonstra.ed the ma.nitude of impa.t tha. gla.coma.ha. on the Qua.ity of Life (QoL) in dia.nosed pa.ients a.d the rela.ionship between gla.coma.a.d the Qua.ity of Life. Due to the progressive visua. loss, the a.ount of a.tivities these pa.ients would perform is nega.ively a.fected especia.ly where socia. a.d economic a.tivities a.e concerned which a.so a.fects their monthly ea.nings for those living in middle to low-income countries. Therefore, socia. welfa.e a

关键词： Gla.coma Qua.ity of Life Gla.coma.Pa.ients

Cha.ge in Functiona. Sta.us from Preopera.ive to One Yea. Postopera.ive in Pa.ients Who Ha.e Undergone Elective Open-Hea.t Surgery: a.Repea.ed-Mea.ures Study

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World Journa. of Ca.diova.cula. Disea.es 2024年第6期14卷 421-433页

作者： a. Ka.e Ma.Phedra. Da.id Ba.ker Ma.k Ma.bey Kiera. Foga.ty Physica. Thera.y Progra. Morosky College of Health Professions and Sciences Gannon University Erie PA USA Interdisciplina.y Hea.th Sciences PhD Progra. College of Health and Human Sciences Western Michigan University Kalamazoo MI USA Orga.iza.iona. Lea.ning a.d Lea.ership PhD Progra. College of Humanities Education and Social Sciences Gannon University Erie PA USA Ca.dia. Surgery Services AHN Saint Vincent Health Center Erie PA USA

Purpose: a.though pa.ient-rela.ed fa.tors a.fect surgica. outcomes, preopera.ive functiona. sta.us is not mea.ured by a.y ca.dia. risk score. Functiona. sta.us ca., however, be objectively mea.ured using va.ida.ed outcome tools such a. the La.e-Life Function a.d Disa.ility Instrument (LLFDI). The purpose of this study wa. to determine 1) if there wa. a.cha.ge over time in functiona. sta.us, a. mea.ured by the LLFDI, in pa.ients who underwent elective ca.dia. surgery, a.d if so, 2) wha. specific a.pect(s) of functiona. sta.us cha.ged. Methods: a.prospective longitudina. study of one yea. wa. conducted on elective ca.dia. surgery pa.ients (n = 43) using the self-reported LLFDI, which mea.ures Disa.ility Frequency (frequency of pa.ticipa.ion in socia. ta.ks), Disa.ility Limita.ion (a.ility to pa.ticipa.e in socia. ta.ks) a.d Function Tota. (ea.e in performing routine a.tivities). Higher scores indica.e increa.ed function a.d decrea.ed disa.ility. LLFDI scores were compa.ed a. three times (preopera.ive, six-week a.d one-yea. postopera.ive) using repea.ed mea.ures a.OVa. Post hoc pa.rwise compa.ison wa. conducted for specific intera.tions. Results: Both Function Tota. a.d Disa.ility Frequency significa.tly cha.ged over time (p = 0.047 a.d p = 0.013, respectively). Specifica.ly, pa.ients’ function level wa. significa.tly higher one-yea. postopera.ive compa.ed to preopera.ive (M difference = +3.48, SE = 1.48, p = 0.026). Likewise, Disa.ility Frequency scores were significa.tly higher (i.e. more a.tive) a. one-yea. postopera.ive versus preopera.ive (M difference= +5.98, SE = 2.19, p = 0.033). Disa.ility Limita.ion scores were not significa.tly different between a.y time points (p > 0.05). Conclusion: By one-yea. postopera.ive, pa.ients demonstra.ed increa.ed ea.e in their routine physica. a.tivities a.d were more pa.ticipa.ory in socia. life ta.ks. Individua.s who underwent elective ca.dia. surgery took more tha. six weeks to detect nota.le improvement in functiona. sta.us,

关键词： Functiona. Sta.us Elective Ca.dia. Surgery La.e-Life Function a.d Disa.ility Instrument