|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | In vitro antibacterial activity of leaf extracts of Zehneria scabra and Ricinus communis against Escherichia coli and methicillin resistance Staphylococcus aureus显示文摘Objective:To evaluate the antibacterial activities of the crude leaves extracts of Zehneria scabra(Z.scabra) and Ricinus communis(R.communis) against Escherichia coli(E.coli).Staphylococcus aureus(S.aureus) and methicillin resistance 5.aureus.Methods:The crude powdered leaves of Z.scabra and R.communis were extracted successively by organic solvents in increasing polarity[benzene,chloroform:acetone(1:1),70%alcohol and distilled water].The antibacterial susceptibility of the crude leaves extracts of were tested against standard strains of E.coli(ATCC 25922) and S.aureus(ATCC 2923) and clinical isolates of E.coli,S.aureus and methicillin resistance 5.aureus using agar well diffusion method.Results:In Z.scabra and R.communis leaf extracts,the most sensitive standard strain was S.aureus with an inhibition zone of(14.00±1.20) mm and(15.90±2.13) mm,respectively.The minimum inhibitory concentration(MIC) values of Z.scabra extracts against test organisms ranged from 1.95mg/mL for extract 3 in clinical and standard strains of 5.aureus to 250 mg/mL for extract 1 and 4in clinical and standard strains of E.coli.The MIC values of R.communis extracts against test organisms ranged from 1.95 mg/mL for extract 2 and 3 standard strains of S.aureus to 250 mg/mL for extract 1 in clinical isolate of E.coli.Most of the minimum bactericidal concentration and MIC values of plant extracts were almost similar particularly in R.communis,or minimum bactericidal concentration equal to one dilution factor less than MIC value of the extracts mainly in Z.scabra.Conclusions:The potency of plant extracts against test organisms were depend on different organic solvents used.Clinical isolate of bacterial pathogens showed less zones of diameter compared to the standard strains.Gram-positive had wide inhibition zones than Gram-negative bacteria.Further studies should be carried out to isolate the pure compounds and standardization of the methods of plant extracts for an in vitro testing. | Bereket Abew Samuel Sahile Feleke Moges | 2014 | Asian Pacific Journal of Tropical Biomedicine2014，4，10： | 3 |
| 2 | Quantum chemical studies on some imidazole derivatives as corrosion inhibitors for iron in acidic medium显示文摘 | G Bereket E Hür C ??retir | 2002 | Journal of Molecular Structure: THEOCHEM2002，，1： | 2 |
| 3 | Numerical reconstruction of microstructure of graphite anode of lithium-ion battery显示文摘Due to the presence of graphite flake cascades,the real graphite anode of Li-ion battery shows non-isotropic characteristic. The present work developed an ellipsoid-based simulated annealing method and numerically reconstructed the three-dimensional microstructure of a graphite anode. The reconstructed anode is a composite of three clearly distinguished phases: pore(or electrolyte),graphite, and solid additives, well representing the nonisotropic heterogeneous characteristic of real graphite anode. Characterization analysis of the reconstructed electrode gives information such as the connectivity of individual phase, the specific interfacial area between solid and pore phase, and the pore size distribution. The effects of the ellipsoid size on the structural characteristics of graphite anode were particularly studied. As the size of the ellipsoidal particle slightly increases, the average pore diameter increases and as a result the specific interfacial area between the solid and pore phase in the reconstructed area decreases; compared with the equatorial radius, the polar radius of ellipsoidal graphite particles has more significant influence on the characteristics of electrode microstructure. | Shaoyang He Jianbang Zeng Bereket Tsegai Habte Fangming Jiang | 2016 | Science Bulletin2016，61，8： | 2 |
| 4 | Treatment with insulin detemir or NPH insulin in children aged 2-5 yr with type 1 diabetes mellitus显示文摘 | Thalange N Bereket A Larsen J | | 0，，： | 1 |
| 5 | CompArison of c&pill&ry blood ketone me&surement by electrochemic&l method &nd urin&ry ketone in tre&tment of diabetic ketosis &nd keto&cidosis in children显示文摘 | Tur&n $ Om&r A Bereket A | 2008 | Act& Di&beto12008，45，2： | 1 |
| 6 | The Corrosion Protection of Mild Steel by Single Layered Polypyrrole and Muhilayered Polypyrrole/Poly (5- amino-1-naphthol) Coatings 显示文摘 | Bereket G | 2009 | Progress in Organic Coat- ing2009，65，： | 1 |
| 7 | Effect of different operating parameters on seed holding in the single seed metering unit of a pneumatic planter显示文摘 | BEREKET B Z | 2004 | Turkish Journal of Agricultural Machinery2004，28，6： | 1 |
| 8 | Effects of anthropometric parameters and stride frequency on estimation of energy cost of walking显示文摘 | Bereket S | 2005 | Sports Med Phys Fitness2005，45，2： | 1 |
| 9 | Electrodeposition of polyaniline,poly(2-iodoaniline),and poly(aniline-co-2-iodoaniline) on steel surfaces and corrosion protection of steel显示文摘 | Hur E Sahin Y | 2005 | Applied Surface Science2005，，： | 1 |
| 10 | Update on bacterial nosocomial infections显示文摘 | Bereket W Hemalatha K Getenet B | 2012 | Eur Rev Med Pharmacol Sci2012，16，8： | 1 |
| 11 | Effect of different oper- ating parameters on seed holding in the single seed metering unit of a paneu- matic planter显示文摘 | BEREKET B Z | 2004 | Turkish Journal of A- gricultural Machinery2004，28，6： | 1 |
| 12 | Effect of different operating parameters on seed holding in the single seed metering unit of a pneumatic planter 显示文摘 | Bereket B Z | 2004 | Turkish Journal of Agricultural Machinery2004，28，6： | 1 |
| 13 | Effect of different operating parameters onseed holding in the single seed metering unit of apneumatic planter显示文摘 | Bereket B Z | 2004 | Turkish Journal of AgriculturalMachinery2004，28，6： | 1 |
| 14 | Treatment with insulin detemir or NPH insulin in children aged 2-5 yr with type 1 diabetes mellitus显示文摘 | Thalange N Bereket A Larsen J | 2011 | Pediatr Diabetes2011，12，： | 1 |
| 15 | Anti-corrosive properties of polyaniline, poly(2-toluidine), and poly(aniline-co-2-toluidine) coatings on stainless steel显示文摘 | HUR E BEREKET G SAHIN Y | 2007 | Current Applied Physics2007，7，6： | 1 |
| 16 | Insulin analogues in children with type 1 diabetes: a 52-week randomized clinical trial显示文摘 | Thalange N Bereket A Larsen J | 2013 | Diabet Med2013，30，： | 1 |
| 17 | Effects of Anthropometric parameters and stride frequence on estimation of energy cost of walking 显示文摘 | Bereket S | 2005 | J Sports Med Phys Fitness2005，45，2： | 1 |
| 18 | Inhibition of the corrosion of low carbon steel in acidic solution by selected polyelectrolytes and polymers 显示文摘 | Bereket G Yurt A Turk H | 2003 | Anti -Corrosion Methods and Materials2003，50，6： | 1 |
| 19 | The inhibition effect of amino acids and hydroxy carboxylic acids on pitting corrosion of aluminum alloy 7075显示文摘 | Bereket G Yurt A | | Corrosion Science0，43，6： | 1 |
| 20 | Corrosion inhibition of stainless steel by polyaniline, poly(2-chloroanilne), and poly(anilne-co-2-choroaniline in HCI显示文摘 | HUR E BEREKET G SAHIN Y | 2006 | Progress in Organic Coatings2006，，57： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员