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Multi-Residue a.a.ysis of Orga.ophosphorus Pesticides in Vegeta.le Using GC-MS

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Journa. of a.ricultura. Chemistry a.d Environment 2017年第4期6卷 232-241页

作者： Dhia.Eldin Elha. Ba.eker S. a.da.la.suliman a. suliman Imtina. a.i Institute of Resea.ch UMST University Khartoum Sudan

This study investiga.es the levels of pesticide residues in Cucumbers (Cucumis sa.ivus), pota.oes (Sola.um tuberosum subsp. Tuberosum) a.d toma.oes (Lycopersicon esculentum). The sa.ples were minced in a.food processor initia.ly subjected to extra.tion followed by clea.up using solid pha.e extra.tion (SPE) column. Sepa.a.ion wa. performed on a.GC ca.illa.y column (Rtx-5 ms-30 m × 0.25 mm× 0.25 μm). The sa.ple wa. injected by using splitless mode, helium a. the ca.rier ga. followed by qua.rupole ma.s spectrometry detection. The mobile pha.e flow ra.es, column tempera.ures, a.d MS pa.a.eters were a.l optimized to rea.h high sensitivity a.d selectivity. Seven pesticides were detected in toma.oes sa.ple, six in cucumber a.d four in pota.oes sa.ples. The findings indica.e risks a.d concerns for public hea.th.

关键词： Pesticides Orga.ophosphorus Ma.a.hion Environmenta. Exposure Vegeta.les Ga. Chroma.ogra.hy-Ma.s Spectrometry

Pa.tern of Potentia. La.ora.ory Ma.kers for COVID-19 in Ea.tern Suda.

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Open Journa. of Epidemiology 2024年第3期14卷 508-516页

作者： Na.ik Sir El Kha.im Ba.hit suliman Moha.med Omer a.a.er Gibreel Merva. Sir El Kha.im Ba.hit suliman Depa.tment of Clinica. Chemistry College of Medical Laboratory Science Eastern Sudan University of Medical Science and Technology Port Sudan Sudan Dea. of the Secreta.ia. of a.a.emic a.fa.rs Port Sudan Ahlia University Port Sudan Sudan Ca.diology Depa.tment Cath Lab Fujaira Hospital Fujaira UAE

Ba.kground: Corona.irus disea.e 2019 (COVID-19) is a.recent globa. hea.th crisis. One of the ma.or issues of COVID-19 is its unpredicta.le ma.ifesta.ions a.d serious outcomes. Ma.y hema.ologica. pa.a.eters a.e thought to cha.ge dra.a.ica.ly during the course of the disea.e. These include white blood cells, red blood cells, a.d pla.elets. This study a.med a. eva.ua.ing certa.n la.ora.ory results;periphera. blood lymphopenia. rela.ive neutrophilia. high neutrophil-lymphocyte ra.io, a.d eleva.ed C-rea.tive protein a. potentia. la.ora.ory ma.kers of COVID-19 in Ea.tern Suda.ese pa.ients. Methods: We, retrospectively, a.med a. the eva.ua.ion of periphera. blood leucocytes count, neutrophil-lymphocyte ra.io NLR a.d C-rea.tive protein (CRP) levels in confirmed COVID-19 ea.tern Suda.ese pa.ients during the course of the disea.e. Results: The mea. tota. leucocytes count, % neutrophils count, a.solute neutrophils count a.d C-rea.tive protein (CRP) were significa.tly higher (P. va.ue = 0.000) in COVID-19 pa.ients tha. in the control group while the mea. % lymphocytes count a.d % mixed cells count were found to be significa.tly lower in COVID-19 pa.ients tha. in the control group (P. va.ue 0.000). Conclusion: Periphera. blood leucocyte a.tera.ions (simulta.eous presence of lymphopenia. rela.ive neutrophilia.a.d high neutrophil lymphocyte ra.io (NLR) a.ong with eleva.ed CRP levels ma. be va.ua.le bioma.kers a.socia.ed with COVID-19 in Port Suda. city, Red Sea.sta.e, Suda.. These ma.kers might be importa.t in prediction, inspection of disea.e progression a.d prognosis.

关键词： COVID-19 Sa.S 2 WBCs CRP NLR Port Suda.

Cluster Modula.ion: a.Genera.ized Modula.ion Scheme Lea.ing to NOMa.or a.a.tive Modula.ion

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Journa. of Computer a.d Communica.ions 2024年第7期12卷 12-22页

作者： Ja.a. S. Ra.ha. suliman J. Ra.ha. Electrica. Engineering Depa.tment The University of Jordan Amman Jordan Invenco Co. Tampa USA

The need for higher da.a.ra.e a.d higher systems ca.a.ity lea.s to severa. solutions including higher constella.ion size, spa.ia. multiplexing, a.a.tive modula.ion a.d Non-Orthogona. Multiple a.cess (NOMa.. a.a.tive Modula.ion ma.es use of the user’s loca.ion from his ba.e sta.ion, such tha., closer users get bigger constella.ion size a.d hence higher da.a.ra.e. a.simila. idea.of a.a.tive modula.ion tha. ma.es use of the user’s loca.ions is the NOMa.technique. Here the ba.e sta.ion tra.smits composite signa.s ea.h for a.different user a. a.different dista.ce from the ba.e sta.ion. The tra.smitted signa. is formed by summing different user’s constella.ions with different weights. The closer the users the less a.era.e power constella.ion is used. This will a.low the closer user to the ba.e sta.ion to distinguish his constella.ion a.d others constella.ion. The fa. user will only distinguish his constella.ion a.d other user’s da.a.will a.pea. a. a.sma.l interference a.ded to his signa.. In this pa.er, it is shown tha. the a.a.tive modula.ion a.d the NOMa.a.e specia. ca.es of the more genera. Cluster Modula.ion technique. Therefore, a.genera. fra.e ca. be set to design both modula.ion schemes a.d better understa.ding is a.hieved. This lea.s to designing a.multi-level NOMa.a.d/or flexible a.a.tive modula.ion with combined cha.nel coding.

关键词： Cluster Modula.ion a.a.tive Modula.ion NOMA

Occupa.iona. hea.th risks a.ong hea.thca.e workers during the COVID-19 pa.demic in Sa.di a.a.ia. prepa.ing for the future pa.demics

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Nursing Communica.ions 2024年第2期8卷 1-5页

作者： Reha. suliman a. Kha.yef a.sha.a.i a. Ha.bi Moha.med a.delha.ied Genedy Moha.ed K.M.Kha.il suliman Moha.ed a. Eidi Ministry of Hea.th Riyadh 13352Saudi Arabia Consulta.t Public Hea.th a.d Resea.ch Development.Ca.ro 11728 Egypt

Ba.kground:This study a.med to a.sess the occupa.iona. risks encountered by Hea.thca.e Workers(HCWs)in Sa.di a.a.ia.during the COVID-19 ***:a.cross-sectiona. survey wa. ca.ried out from Ma. to October *** a.multi-sta.e stra.ified ra.dom sa.pling technique,a. online questionna.re wa. sent to the recruited HCWs,a.ross Sa.di ***:Of the 768 HCWs recruited,702 pa.ticipa.ed in the survey.a.significa.t ma.ority(over 80%)reported working beyond 8 hours ***-19 infection,confirmed via.PCR,wa. identified in 25%of the ***,infection wa. significa.tly correla.ed with direct or close conta.t(p=0.0007).Psychologica. distress wa. reported by 81%,with a.xiety being the most preva.ent(33%),followed by stress(19%),depression(17%),a.d insomnia.12%).a.ound 20%experienced hea.a.hes post-PPE use,while 14%reported a.verse skin rea.tions,predomina.tly a.lergy a.d derma.itis.a.concerning one-third of respondents reported exposure to ***:High infection ra.e,physica. a.d psychologica. risks a.ong HCWs especia.ly those in direct conta.t with pa.ients,reflect the need for enha.cing the entirety of outbrea. prepa.edness a.d response,specifica.ly *** surveilla.ce system,is crucia. to a.equa.ely monitor a.d support HCWs during pa.demic scena.ios.

关键词： COVID-19 pa.demic hea.thca.e worker risk Sa.di a.a.ia

Vibra.ion-Ba.ed Pa.tern Pa.sword a.proa.h for Visua.ly Impa.red People

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Computer Systems Science & Engineering 2022年第1期40卷 341-356页

作者： suliman a.a.suhiba.y Depa.tment of Computer Science College of ComputerQassim UniversityBuraydahSaudi Arabia

The pa.tern pa.sword method is a.ongst the most a.tra.tive a.thentica.ion methods a.d involves dra.ing a.pa.tern;this is seen a. ea.ier tha. typing a.***,since people with visua. impa.rments ha.e been increa.ing their usa.e of sma.t devices,this method is ina.cessible for them a. it requires them to select points on the touch ***,this pa.er exploits the ha.tic technology by introducing a.vibra.ion-ba.ed pa.tern pa.sword a.proa.h in which the vibra.ion feedba.k pla.s a. importa.t *** a.proa.h a.lows visua.ly impa.red people to use a.pa.tern pa.sword through two developed vibra.ion feedba.k:pulses,which a.e counted by the user,a.d dura.ion,which ha. to be estima.ed by the *** order to ma.e the proposed a.proa.h ca.a.le to prevent shoulder-surfing a.ta.ks,a.ca.oufla.e pa.tern a.proa.h is *** experimenta. study is conducted to eva.ua.e the proposed a.proa.h,the results of which show tha. the vibra.ion pulses feedba.k is usa.le a.d resista.t to shoulder-surfing a.ta.ks.

关键词： Informa.ion security a.thentica.ion vibra.ion-ba.ed pa.tern pa.sword visua.ly impa.red people shoulder-surfing a.ta.ks

Usa.ility a.d Security of a.a.ic Text-ba.ed Ca.TCHa.Using Visua. Cryptogra.hy

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Computer Systems Science & Engineering 2022年第2期40卷 421-440页

作者： suliman a.a.suhiba.y Mezna. a.qura.shi Depa.tment of Computer Science College of ComputerQassim UniversityBuraydah51452Saudi Arabia

Recently,with the sprea. of online services involving websites,a.ta.k-ers ha.e the opportunity to expose these services to ma.icious *** protect these services,a.Completely a.toma.ed Public Turing Test to Tell Computers a.d Huma.s a.a.t(Ca.TCHa.is a.proposed *** ma.y a.a.ic countries ha.e developed their online services in a.a.ic,a.a.ic text-ba.ed Ca.TCHa.ha. been introduced to improve the usa.ility for their ***-over,there exist a.visua. cryptogra.hy(VC)technique which ca. be exploited in order to enha.ce the security of text-ba.ed Ca.TCHa.by encrypting a.Ca.TCHa.ima.e into two sha.es a.d decrypting it by a.king the user to sta.k them on ea.h ***,a. yet,the implementa.ion of this technique with rega.d to a.a.ic text-ba.ed Ca.TCHa.ha. not been ca.ried ***,this pa.er a.ms to implement a. a.a.ic printed a.d ha.dwritten text-ba.ed Ca.TCHa.scheme ba.ed on the VC *** eva.ua.e this scheme,experi-menta. studies a.e conducted,a.d the results show tha. the implemented scheme offers a.rea.ona.le security a.d usa.ility levels with text-ba.ed Ca.TCHa.itself.

关键词： Visua. cryptogra.hy a.a.ic text-ba.ed Ca.TCHA usa.ility security printed a.d ha.dwritten a.a.ic script

Compa.ibility of Fibregla.s Woven Roving a.d Commercia.ly a.a.la.le Phenolic Resins

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Journa. of Ma.eria.s Science & Technology 1997年第5期13卷 379-382页

作者： Ha.a. M.a. suliman S.M.a. Dept. of Mecha.ica. Engineering Bahrain University Box 32038 Isa Town Bahrain

Three commercia.ly a.a.la.le phenolic resins a.e a.sessed for compa.ibility with a.fibregla.s wovenroving reinforcement. Compa.ibility a.sessment is ba.ed on la.ina.e physica. properties f flexura.strength a.d modulus in three a.d four point bending, interla.ina. shea. strength, a.d tensilestrength a.d modulus. The physica. properties a.e a.so used for a.sessment of ha.d la.ina.edgla.s/phenolic systems

关键词： Gla.s fibers

Loca.ion-a.a.e Persona.ized Tra.eler Recommender System(La.Ta.Using Colla.ora.ive Filtering KNN

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Computers, Ma.eria.s & Continua 2021年第11期69卷 1553-1570页

作者： Moha.a. a.-Ghoba.i a.ga. Muneer suliman Moha.ed Fa.i School of Informa.ion Technology Asia Pacific UniversityKuala Lumpur57000Malaysia Depa.tment of Computer a.d Informa.ion Sciences Universiti Teknologi PETRONASSeri Iskandar32160Malaysia Depa.tment of Informa.ion Systems Prince Sultan UniversityRiyadh11586Saudi Arabia

Ma.y tourists who tra.el to explore different cultures a.d cities worldwide a.m to find the best tourist sites,a.commoda.ion,a.d food a.cording to their *** objective ma.es it ha.der for tourists to decide a.d pla. where to go a.d wha. to *** from hiring a.loca. guide,a. option which is beyond most tra.elers’budgets,the ma.ority of sojourners nowa.a.s use mobile devices to sea.ch for or recommend interesting sites on the ba.is of user ***,this work utilizes the preva.ent recommender systems a.d mobile a.p technologies to overcome this ***,this study proposes loca.ion-a.a.e persona.ized tra.eler a.sista.ce(La.Ta.,a.system which integra.es user preferences a.d the globa. positioning system(GPS)to genera.e persona.ized a.d loca.ion-a.a.e *** integra.ion will ena.le the enha.ced recommenda.ion of the developed scheme rela.ive to those from the tra.itiona. recommender systems used in customer ***,La.Ta.sepa.a.es the da.a.obta.ned from Google loca.ions into na.e a.d ca.egory *** the da.a.sepa.a.ion,the system fetches the keywords from the user’s input a.cording to the user’s pa.t resea.ch *** proposed system uses the K-Nea.est a.gorithm to ma.ch the na.e a.d ca.egory ta.s with the user’s input to genera.e persona.ized *** system a.so provides suggestions on the ba.is of nea.by popula. a.tra.tions using the Google point of interest fea.ure to enha.ce system *** experimenta. results showed tha. La.Ta.could provide more relia.le a.d a.cura.e recommenda.ions compa.ed to the reviewed recommenda.ion a.plica.ions.

关键词： La.TA recommender system KNN colla.ora.ive filtering users’preference mobile a.plica.ion loca.ion a.a.eness

a.New Multi Cha.s-Ba.ed Compression Sensing Ima.e Encryption

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Computers, Ma.eria.s & Continua 2023年第7期76卷 437-453页

作者： Fa.ia.a.i Kha. Ja.eel a.med suliman a.a.suhiba.y Depa.tment of Electrica. Engineering Riphah International UniversityIslamabad44000Pakistan Depa.tment of Computer Science College of ComputerQassim UniversityBuraydah51452Saudi Arabia

The a.va.cements in technology ha.e substa.tia.ly grown the size of ima.e *** ima.e encryption a.gorithms ha.e limited ca.a.ilities to dea. with the emerging cha.lenges in big da.a.including compression a.d noise *** ima.e encryption method tha. is ba.ed on cha.tic ma.s a.d orthogona. ma.rix is proposed in this *** proposed scheme is built on the intriguing cha.a.teristics of a. orthogona. *** Schmidt disperses the va.ues of pixels in a.pla.ntext ima.e by genera.ing a.ra.dom orthogona. ma.rix using logistic cha.tic *** the diffusion process,a.block-wise ra.dom permuta.ion of the da.a.is performed using *** proposed scheme provides sufficient security a.d resilience to JPEG compression a.d cha.nel noise through a.series of experiments a.d security *** ena.les Pa.tia. Encryption(PE)for fa.ter processing a. well a. complete encryption for increa.ed *** higher va.ues of the number of pixels cha.ge ra.es a.d unified a.era.e cha.ge intensity confirm the security of the encryption *** contra.t to other schemes,the proposed a.proa.h ca. perform full a.d pa.tia. encryption depending on security requirements.

关键词： Cha.s compression ima.e encryption