نتایج جستجو برای ���������� ������ ���� 100 ������������

تعداد نتایج: 336379  

2007
Owen B. Laug,

A high-current, wide-band transconductance amplifier is described that provides an unprecedented level of output current at high frequencies with exceptional stability. It is capable of converting a signal voltage applied to its input into a groundreferenced output rms current up to 100 A over a frequency range from dc to 100 kHz with a useable frequency extending to 1 MHz. The amplifier has a ...

2013
J. Rajeswari, H. Ibach, C. M. Schneider,

Using electron energy loss spectroscopy, we have probed the spin waves of fcc(100) cobalt after capping with 1–3 atom layers of pseudomorphic nickel or up to 12 atom layers of copper. The intensity decay of the spin wave signal is quantitatively described by the mean-free path of the incident and the scattered electron within the capping layer. The observed spin waves are therefore localized at...

Mir Sharifi, SR, Rabbani, A, Razavi Emami , SH,

100 patients (93 females and 7 males) in ages ranging between 23 and 65 years were subjected to laparoscopic cholecystectomy for biliary colic (92 pts), acute cholecystitis (7 pts) or asymptomatic gallstones (1 pt). None had a history of icterus and in every case choledocholithiasis was excluded by means of serum alkaline phosphatase assessment and sonography (In addition to ERCP in 3 pts). 3 o...

The spin-polarized calculations in generalized gradient approximation density–functional theory (GGA–DFT) have been used to show how the existence of second metals can modify the atomic hydrogen adsorption on Au (100), Cu (100), and Pt (100) surfaces. The computed adsorption energies for the atomic hydrogen adsorbed at the surface coverage of 0.125 ML (monolayer) for the monometallic Au (100), ...

2012
Brian R. Dempsey, Anne C. Rintala-Dempsey, Gary S. Shaw,

S100 proteins were first discovered in 1965 by Moore as a major protein fraction (0.6% of total soluble protein) isolated from bovine brain (Moore 1965). The protein was given the name S100 due to its high solubility in saturated ammonium sulfate. Later experiments showed the S100 protein fraction constituted two different dimeric species comprised of two b protomers (S100B) or an a, b heterodi...

2011
Sayka Barry, Tatjana Crnogorac-Jurcevic,

S100P protein consists of 95 amino acids with a molecular weight of 10.4 kDa. S100P is a Ca binding protein that belongs to S100 family ("Soluble in 100% saturated solution with ammonium sulfate") which was first isolated from human placenta and is therefore designated as "P". S100 family includes at least 26 members, which are thought to be expressed only in vertebrates and are present in a ti...

2006
David E. McCready, Yong Liang, Vaithiyalingam Shutthanandan, Chong Min Wang, Suntharampillai Thevuthasan,

Thermal lattice expansion in epitaxial SrTiO3(100) grown on Si(100) by molecular beam epitaxy was examined by in situ X-ray diffraction (XRD) at temperatures ranging from 25 °C to 1000 °C. The SrTiO3 layer thickness (~400 Å) was determined a priori by ex situ X-ray reflectivity (XRR). In addition, the SrTiO3(100) film was further characterized before and after thermal treatment by Rutherford ba...

2006
Andrew J. Francis, Paul A. Salvador,

Pulsed laser deposition (PLD) has been used to grow epitaxially oriented thin films of Cu and Pt on (100)-oriented substrates of both SrTiO3 and LaAlO3. The resulting films have been characterized for their crystalline orientations using x-ray diffraction (XRD) and for their surface morphologies using atomic force microscopy (AFM). The diffraction results illustrated that purely epitaxial Cu(10...

علی ریحانی, , علیرضا مشفق, ,

  In this investigation kinetics and mechanism of NH3 synthesis over Fe(100) and K/Fe(100) model catalysts have been studied. In this context, adsorption kinetics of both N2/Fe (100) and H2/Fe (100)systems is initially investigated. By using statistical mechanic approach, we have determined the adsorption coefficient for N2 and H2 molecules as well as transition probability of different states ...

2007
Erik Henke, Jonathan Perk, Jelena Vider, Paola de Candia, Yvette Chin, David B Solit, Vladimir Ponomarev, Luca Cartegni, Katia Manova, Neal Rosen, Robert Benezra,

Transcription factors are important targets for the treatment of a variety of malignancies but are extremely difficult to inhibit, as they are located in the cell’s nucleus and act mainly by protein-DNA and protein-protein interactions. The transcriptional regulators Id1 and Id3 are attractive targets for cancer therapy as they are required for tumor invasiveness, metastasis and angiogenesis. W...

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