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Showing 1 to 12 of 212 entries
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New analytical approach to calibrate the co-axial HPGe detectors including correction for source matrix self-attenuation.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Badawi MS, Gouda MM, Nafee SS, El-Khatib AM, El-Mallah EA.
PMID: 23023386
Appl Radiat Isot. 2012 Dec;70(12):2661-8. doi: 10.1016/j.apradiso.2012.08.014. Epub 2012 Aug 31.

To calibrate the co-axial HPGe semiconductor detectors, we introduce a new theoretical approach based on the Direct Statistical method proposed by Selim and Abbas (1995, 1996) to calculate the full-energy peak efficiency for cylindrical detectors. The present method depends...

Value added by .

Veterinary world

Yusuf MS, Hassan MA, Abdel-Daim MM, Nabtiti AS, Ahmed AM, Moawed SA, El-Sayed AK, Cui H.
PMID: 27956783
Vet World. 2016 Nov;9(11):1287-1293. doi: 10.14202/vetworld.2016.1287-1293. Epub 2016 Nov 23.

AIM: The growth promoting effect of the blue-green filamentous alga MATERIALS AND METHODS: This study was conducted on 180 Japanese quail chicks for 4 weeks to find out the effect of diet type (vegetarian protein diet [VPD] and fish...

Differential biological effects of dehydroepiandrosterone (DHEA) between mouse (B16F10) and human melanoma (BLM) cell lines.

Dermato-endocrinology

Joshi K, Hassan SS, Ramaraj P.
PMID: 29484102
Dermatoendocrinol. 2017 Nov 20;9(1):e1389360. doi: 10.1080/19381980.2017.1389360. eCollection 2017.

Dehydroepiandrosterone (DHEA) is a weak androgen and had been shown to have anti-cancer, anti-adipogenic and anti-inflammatory effects on mouse and other rodent models, but not on humans, suggesting a systemic level difference between mouse and human. Our previous study...

Discovery of a Potent Parenterally Administered Factor XIa Inhibitor with Hydroxyquinolin-2(1H)-one as the P2' Moiety.

ACS medicinal chemistry letters

Hu Z, Wong PC, Gilligan PJ, Han W, Pabbisetty KB, Bozarth JM, Crain EJ, Harper T, Luettgen JM, Myers JE, Ramamurthy V, Rossi KA, Sheriff S, Watson CA, Wei A, Zheng JJ, Seiffert DA, Wexler RR, Quan ML.
PMID: 26005539
ACS Med Chem Lett. 2015 Apr 08;6(5):590-5. doi: 10.1021/acsmedchemlett.5b00066. eCollection 2015 May 14.

Structure-activity relationship optimization of phenylalanine P1' and P2' regions with a phenylimidazole core resulted in a series of potent FXIa inhibitors. Introducing 4-hydroxyquinolin-2-one as the P2' group enhanced FXIa affinity and metabolic stability. Incorporation of an N-methyl piperazine amide...

Molecular identification and histopathological study of natural .

Veterinary world

Laith AA, Ambak MA, Hassan M, Sheriff SM, Nadirah M, Draman AS, Wahab W, Ibrahim WN, Aznan AS, Jabar A, Najiah M.
PMID: 28246454
Vet World. 2017 Jan;10(1):101-111. doi: 10.14202/vetworld.2017.101-111. Epub 2017 Jan 24.

AIM: The main objective of this study was to emphasize on histopathological examinations and molecular identification of MATERIALS AND METHODS: The diseased fishes were observed for variable clinical signs including fin hemorrhages, alterations in behavior associated with erratic swimming,...

Safe surgical technique: iliac osteotomy via the anterior approach for revision hip arthroplasty.

Patient safety in surgery

Ziran NM, Sherif SM, Matta JM.
PMID: 25473418
Patient Saf Surg. 2014 Sep 09;8:32. doi: 10.1186/s13037-014-0032-7. eCollection 2014.

Robert Judet first performed hip arthroplasty via the anterior approach (AA) in 1947 on an orthopaedic table. Our center has a near 20-year experience on more than 3500 patients operated by AA hip arthroplasty. While primary AA total hip...

Current rectification in a single molecule diode: the role of electrode coupling.

Nanotechnology

Sherif S, Rubio-Bollinger G, Pinilla-Cienfuegos E, Coronado E, Cuevas JC, Agraït N.
PMID: 26133791
Nanotechnology. 2015 Jul 24;26(29):291001. doi: 10.1088/0957-4484/26/29/291001. Epub 2015 Jul 02.

We demonstrate large rectification ratios (> 100) in single-molecule junctions based on a metal-oxide cluster (polyoxometalate), using a scanning tunneling microscope (STM) both at ambient conditions and at low temperature. These rectification ratios are the largest ever observed in...

Cysteine containing dipeptides show a metal specificity that matches the composition of seawater.

Physical chemistry chemical physics : PCCP

Belmonte L, Rossetto D, Forlin M, Scintilla S, Bonfio C, Mansy SS.
PMID: 27182665
Phys Chem Chem Phys. 2016 Jul 27;18(30):20104-8. doi: 10.1039/c6cp00608f.

Model prebiotic dipeptide sequences were identified by bioinformatics and DFT and molecular dynamics calculations. The peptides were then synthesized and evaluated for metal affinity and specificity. Cysteine containing dipeptides were not associated with metal affinities that followed the Irving-Williams...

Crystallization and preliminary crystallographic analysis of E. coli uridine 5'-diphospho-N-acetylenolpyruvylglucosamine reductase in two new crystal forms.

Acta crystallographica. Section D, Biological crystallography

Ohringer SL, Chang CY, Sheriff S, Klei HE, Sack JS, Jacobson BL, Yanchunas J, Lavoie T, Dhalla AM, Robertson JG, Einspahr HM.
PMID: 15299687
Acta Crystallogr D Biol Crystallogr. 1996 May 01;52:586-8. doi: 10.1107/S0907444995016489.

Uridine 5'-diphospho-N-acetylenolpyruvylglucosamine reductase (MurB), the second enzyme in the peptidoglycan synthetic pathway of Escherichia coli, has been crystallized in two previously unreported forms, one orthorhombic and the other monoclinic. MurB (molecular mass 38 kDa) crystallizes in a range of...

Field-programmable smart-pixel arrays: design, VLSI implementation, and applications.

Applied optics

Sherif SS, Griebel SK, Au A, Hui D, Szymanski TH, Hinton HS.
PMID: 18305683
Appl Opt. 1999 Feb 10;38(5):838-46. doi: 10.1364/ao.38.000838.

A smart-pixel array is a two-dimensional array of optoelectronic devices that combine optical inputs and outputs with electronic processing circuitry. A field-programmable smart-pixel array (FP-SPA) is a smart-pixel array capable of having its electronic functionality dynamically programmed in the...

Novel technique for biliary reconstruction using an isolated gastric tube with a vascularized pedicle: a live animal experimental study and the first clinical case.

Annals of surgical innovation and research

Helmy AA, Hamad MA, Aly AM, Sherif T, Hashem M, El-Sers DA, Semieka M.
PMID: 21985492
Ann Surg Innov Res. 2011 Oct 10;5:8. doi: 10.1186/1750-1164-5-8.

BACKGROUND: Biliary tract reconstruction continues to be a challenging surgical problem. Multiple experimental attempts have been reported to reconstruct biliary defects with different materials and variable outcome. Our aim was to evaluate a new method for biliary reconstruction using...

Synthesis and in vitro antioxidant functions of protein hydrolysate from backbones of Rastrelliger kanagurta by proteolytic enzymes.

Saudi journal of biological sciences

Sheriff SA, Sundaram B, Ramamoorthy B, Ponnusamy P.
PMID: 24596496
Saudi J Biol Sci. 2014 Jan;21(1):19-26. doi: 10.1016/j.sjbs.2013.04.009. Epub 2013 May 06.

Every year, a huge quantity of fishery wastes and by-products are generated by fish processing industries. These wastes are either underutilized to produce low market value products or dumped leading to environmental issues. Complete utilization of fishery wastes for...

Showing 1 to 12 of 212 entries