RAPT

Target of Rapamycin encoded by TORI and TOR2 in yeast mTOR, replaces FRAP, RAFT, RAPT or SEP in mammals... 

The Chemistry of Radical Polymerization Tabic 9.18 Ditliiocarbamate RAPT Agents... 

Application of Thermally Sensitive Binders As an Ordnance Disposal Method , SRI, Calif, Progress Rapt 2426-6, Contract No N00017-73-C4329, Mod P00001 (1974) 72) R.A. 

Following is a list of other pertinent refs which are currently classified as limited distribution 1) D.C. Coop et al, Modernization Program for Nitric and Sulfuric Acid Manufacture and Concentration at Alabama Army Ammunition Plant , Rapt No 8-67, Contract DAAA21-67-C-0864, C and 1 Girdler Inc, Louisville (1967) 2)E. Banik et al, A Study on... 

Determination of Si-Al connectivities in zeolites with 2D Al-Si RAPT CPMAS CPMG HETCOR NMR techniques. 

The 27Al-29Si RAPT-CPMG-HETCOR experiments were performed at 14.1 T on a Varian NMR System 600 spectrometer, equipped with a triple resonance MAS probe. 

The sample was spun at 10 kHz in a 3.2 mm rotor. The pulse sequence (Figure 1) consisted of RAPT preparation (with Trapt —... 

Figure 1. Pulse sequence for 27Al-29Si HETCOR experiment with sensitivity enhancement by RAPT and CPMG data acquisition.

Figure 3 2D 27Al-29Si RAPT-CP-CPMG HETCOR data for zeolite ZSM-4 recorded at 14.1 T with 10 kHz MAS. The 2D spectrum was acquired in 30 rows of hypercomplex data, with 64K scans per row, h increments of 100 ps, and acquisition time of 38 hours. In the right, ID slices taken through the centers of Ah and Al2 resonances are compared with ID 29Si MAS spectrum.

This application of sensitivity enhanced RAPT-CP-CPMG HETCOR, to microporous aluminosilicates illustrates the potential of... 

Signal enhancement of the CT can also be obtained using rotor-assisted population transfer (RAPT), introduced in 2000 by Yao et al. [65], It is based on the same... 

An improved RAPT sequence utilizing frequency-switched Gaussian pulses (FSG-RAPT) was later proposed [68], This method also allows for the measurement of Cq values. The dependence of the FSG-RAPT enhancement on offset frequency for nuclei with different CgS has been exploited to design pulse schemes for the selective selection of nuclei with large quadrupole couplings [69-71]. 

Madhu et al. proposed the use of two consecutive RAPT pulse trains to obtain signal enhancement in spin-5/2 nuclei, such as 27Al and 170 [72]. In their scheme, the saturation of population achieved for the outermost ( 5/2) — 3/2)) transitions was followed by saturation of the 3/2) —> l/2) populations before detection of the CT NMR signal. Kwak et al. used similar RAPT pulse trains to obtain significantly improved signal enhancement on 27Al and 93Nb [73],... 

Siegel et al. showed that enhancement of the CT can also be obtained using hyperbolic secant (HS) pulses to invert selectively the STs [74], Unlike the DFS waveform, whose frequency sweep is generated by a constant rf-pulse phase while modulating the amplitude, the HS pulse utilizes both amplitude and phase modulation, yielding an enhancement exceeding that obtained by DFS or RAPT [61, 74, 75]. Most recently, the pulse sequence called wideband uniform-rate smooth truncation (WURST) [76] was introduced to achieve selective adiabatic inversion using a lower power of the rf-field than that required for the HS pulses [77,78]. One of its applications involved more efficient detection of insensitive nuclei, such as 33S [79]. 

The impressions gleaned by the two Doctors were almost Biblical. They were rapt in contemplation of a business which would offer a pastoral craft to the rural inhabitants. Early in the morning, the farmer would get up and milk his cows, then stroll off — lunchbox in hand — to the plant. He would work there in the afternoon while his wife and daughter toiled in the vineyard. Everything about the picture was charming — except that there were not 15,000 such farmers near-by. 

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science. He to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, is as good as dead his eyes are closed. ... 

Figure 6 Typical pulse sequence used in experiments with a signal-enhancement scheme (which can involve DFS, RAPT or application of adiabatic pulses) placed before the CT excitation and detection, with formation of a spin-echo.

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