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| 1 | WiGig and IEEE 802.11ad for Multi-Gigabyte-Per-Second WPAN and WLAN显示文摘The Wireless Gigabit Alliance (WiGig) and IEEE 802.11ad are developing a multigigabit wireless personal and local area network (WPAN/WLAN) specification in the 60 GHz millimeter wave band. Chipset manufacturers, original equipment manufacturers (OEMs), and telecom companies are also assisting in this development. 60 GHz millimeter wave transmission will scale the speed of WLANs and WPANs to 6.75 Gbit/s over distances less than 10 meters. This technology is the first of its kind and will eliminate the need for cable around personal computers, docking stations, and other consumer electronic devices. High-definition multimedia interface (HDMI), display port, USB 3.0, and peripheral component interconnect express (PCIe) 3.0 cables will all be eliminated. Fast downloads and uploads, wireless sync, and multi-gigabit-per-second WLANs will be possible over shorter distances. 60 GHz millimeter wave supports fast session transfer (FST) protocol, which makes it backward compatible with 5 GHz or 2.4 GHz WLAN so that end users experience the same range as in today's WLANs. IEEE 802.11ad specifies the physical (PHY) sublayer and medium access control (MAC) sublayer of the protocol stack. The MAC protocol is based on time-division multiple access (TDMA), and the PHY layer uses single carrier (SC) and orthogonal frequency division multiplexing (OFDM) to simultaneously enable low-power, high-performance applications. | Sai Shankar N Debashis Dash Hassan El Madi Guru Gopalakrishnan | 2012 | ZTE Communications2012，10，4： | 4 |
| 2 | Occult hepatitis B virus infection among Egyptian blood donors显示文摘AIM:To identify blood donors with occult hepatitis B virus(HBV) infection(OBI) to promote safe blood donation.METHODS:Descriptive cross sectional study was conducted on 3167 blood donors negative for hepatitis B surface antigen(HBsAg),hepatitis C antibody(HCV Ab) and human immunodeficiency virus Ab.They were subjected to the detection of alanine aminotransferase(ALT) and aspartate transaminase(AST) and screening for anti-HBV core antibodies(total) by two different techniques;[Monoliza antibodies to hepatitis B core(Anti-HBc) Plus-Bio-Rad] and(ARC-HBc total-ABBOT).Positive samples were subjected to quantitative detection of antibodies to hepatitis B surface(anti-HBs)(ETI-AB-AUK-3,Dia Sorin-Italy).Serum anti-HBs titers > 10 IU/L was considered positive.Quantitative HBV DNA by real time polymerase chain reaction(PCR)(QIAGEN-Germany) with 3.8 IU/mL detection limit was estimated for blood units with negative serum anti-HBs and also for 32 whose anti-HBs serum titers were > 1000 IU/L.Also,265 recipients were included,34 of whom were followed up for 3-6 mo.Recipients were investigated for ALT and AST,HBV serological markers:HBsAg(ETI-MAK-4,Dia Sorin-Italy),anti-HBc,quantitative detection of anti-HBs and HBV-DNA.RESULTS:525/3167(16.6%) of blood units were positive for total anti-HBc,64% of those were antiHBs positive.Confirmation by ARCHITECT anti-HBc assay were carried out for 498/525 anti-HBc positive samples,where 451(90.6%) confirmed positive.Reactivity for anti-HBc was considered confirmed only if two positive results were obtained for each sample,giving an overall prevalence of 451/3167(14.2%) for total anti-HBc.HBV DNA was quantified by real time PCR in 52/303(17.2%) of anti-HBc positive blood donors(viral load range:5 to 3.5 x 105 IU/mL) with a median of 200 IU/mL(mean:1.8 x 104 ± 5.1 x 104 IU/mL).AntiHBc was the only marker in 68.6% of donors.Univariate and multivariate logistic analysis for identifying risk factors associated with anti-HBc and HBV-DNA positivity among blood donors showed that age above thirty and marriage were the most significant risk factors for prediction of anti-HBc positivity with AOR 1.8(1.4-2.4) and 1.4(1.0-1.9) respectively.Other risk factors as gender,history of blood transfusion,diabetes mellitus,frequent injections,tattooing,previous surgery,hospitalization,Bilharziasis or positive family history of HBV or HCV infections were not found to be associated with positive anti-HBc antibodies.Among anti-HBc positive blood donors,age below thirty was the most significant risk factor for prediction of HBV-DNA positivity with AOR 3.8(1.8-7.9).According to HBV-DNA concentration,positive samples were divided in two groups;group one with HBV-DNA ≥ 200 IU/mL(n = 27) and group two with HBV-DNA < 200 IU/mL(n = 26).No significant difference was detected between both groups as regards mean age,gender,liver enzymes or HBV markers.Serological profiles of all followed up blood recipients showed that,all were negative for the studied HBV markers.Also,HBV DNA was not detected among studied recipients,none developed post-transfusion hepatitis(PTH) and the clinical outcome was good.CONCLUSION:OBI is prevalent among blood donors.Nucleic acid amplification/HBV anti core screening should be considered for high risk recipients to eliminate risk of unsafe blood donation. | Zeinab N Said Manal H El Sayed Iman I Salama Enas K Aboel-Magd Magda H Mahmoud Maged El Setouhy Faten Mouftah Manal B Azzab Heidi Goubran Amal Bassili Gamal E Esmat | 2013 | World Journal of Hepatology2013，5，2： | 4 |
| 3 | Hyperspectral imaging for nondestructive determination of some quality attributes for strawberry显示文摘 | El MASRY G WANG N El SAYED A | 2007 | Journal of Food Engineering2007，81，： | 1 |
| 4 | The effects of a hydrogel polymer on the growth of certain horticultural crops under saline conditions显示文摘 | EL SAYED H KIRKWOOD R C GRAHAM N B | 1991 | J Expt Bot1991，42，： | 1 |
| 5 | Insect cuticle and yeast extract effects on germination, growth and production of hydrolytic enzyme by Nomuraea rileyi 显示文摘 | EL Sayed G N Ignoff C M Leathers T | 1993 | Mycopathologia1993，122，： | 1 |
| 6 | Relationship among enzyme activities and virulence parameters in Beauveria bassiana infections of Galleria mellonella and Trichoplusia ni显示文摘 | Gupta S C Leathers T D EL Sayed G N | 1994 | J Invertebr Pathol1994，64，： | 1 |
| 7 | Establishment and characterization of insect cell lines from 10 lepidopteran species显示文摘 | Goodman C L El Sayed G N Mclntosh A H | 2001 | In Vitro Cell Dev Biol Anim2001，37，6： | 1 |
| 8 | Patient-related risk factors for tooth loss in aggressive periodontitis after active periodontal therapy 显示文摘 | Baumer A El Sayed N Kim Ts | 2011 | J Clin periodontal2011，38，4： | 1 |
| 9 | Patient-related risk factors for tooth loss in aggressive periodontitis after active periodontal therapy 显示文摘 | Baumer A El Sayed N Kim TS | 2011 | JClinPeriodontol2011，38，4： | 1 |
| 10 | INDO/SCF- CI calculations and structural spectroscopic studies of some complexes of 4 - hydroxyacetanilide显示文摘 | A S El - Shahawy S M Ahmed N Kh Sayed | 2007 | Spectrochimica Acta Part A2007，66，： | 1 |
| 11 | Preparation and applications of ion exchange membranes by radiation- induced graft copolymerization of polar monomers onto non- polar films显示文摘 | Mohamed M N El - Sayed A H | 2004 | Prog Polym Sci2004，29，： | 1 |
| 12 | Production of degradation enzyme by Metarhizium anisopliae during growth on defined media and insect cuticle显示文摘 | Gupta S C Leathers T D EL Sayed G N | 1991 | Experi Mycol1991，15，： | 1 |
| 13 | Development of the Flame Atomic Absorption Spectroscopic Method for Beryllium Determination显示文摘 | El Saied F A Farag N M Fouad H K | 2009 | Journal of Applied Sciences Research2009，5，5： | 1 |
| 14 | Tenapol, a membrane- permeable radical scavenger, ameliorates lipopolysac- eharide - induced acute lung injury in mice : a key role for super- oxide anion显示文摘 | EL SAYED N S MAHRAN L G KHATI'AB M M | 2011 | Eur J Pharmaeol2011，663，13： | 1 |
| 15 | Adjuvant and adjunctive chemotherapy in the management of squamous cell carcinoma of the head and neck region:a meta- analysis of prospective and randomized trials显示文摘 | El Sayed S Nelson N | 1996 | J Clin Oncol1996，14，3： | 1 |
| 16 | Patient-related risk factors fortooth loss in aggressive periodontitis after active periodontal therapy显示文摘 | Baumer A El Sayed N Kim TS | 2011 | J Clin Periodontol2011，38，4： | 1 |
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