A GC/FID methodology for determination of twenty-one free amino acids in quince fruit (pulp and peel) and jam is described. The sample preparation was simple, involving a SCX Solid-Phase Extraction (SPE) purification step and a fast derivatization with ethyl chloroformate for gas chromatographic analysis. The chromatographic separation was achieved using a CP-Sil 19 CB wcot fused-silica capilla...

Introduction. Only recently, an analytic solution for partial spoiling of the steady state of gradient echo sequences (pSSFP) was presented [1]. Radiofrequency phase cycling (RF spoiling) refers to a linear increment in the differential RF phase of consecutive excitation pulses φk − φk−1 = kφ, characterized by the phase shift increment φ. The steady state depends sensitively on φ, yielding SSFP...

Introduction. Non-balanced steady-state free precession sequences (SSFP-FID and SSFP-echo) are gradient-spoiled pulse sequences that provide high signal even in presence of long T1 values, because the transverse magnetization is not completely incoherent by means of radiofrequency spoiling. Contrary to balanced SSFP sequences they do not suffer from off-resonance banding artifacts, making them ...

Siříšťová L., Přinosilová Š., Riddellová K., Hajšlová J., Melzoch K. (2012): Changes in quality parameters of vodka filtered through activated charcoal. Czech J. Food Sci., 30: 474–482. The production technology of high-quality vodka used in Russia involves filtration through activated charcoal. To approach the quality of renowned Russian vodka, one prominent Czech spirit-producing company inst...

What are the technologies that will transform business and drive the research agenda for the IS field in the years to come? Which innovations, platforms, and paradigms will become dominant, and which others will ultimately pass into obscurity? In this panel discussion, we will seek answers to these questions from those with a unique and unmatched perspective. The leaders who have witnessed the ...

Almost everyone knows that the inner angles of a triangle sum to 180o. But if you ask the typical mathematician how to sum the solid inner angles over the vertices of a tetrahedron, you are likely to receive a blank stare or a mystified shrug. In some cases you may be directed to the Gram-Euler relations for higher dimensional polytopes [3, 4, 6, 7], a 19th century result unjustly consigned to ...

e nature of divine eternality is obscure in both historical andmodern discussions. In a way its obscurity is no surprise, given that the nature of time is so mysterious. But the obscurity is still notable relative to the other traditional divine attributes, which are comparatively much better understood. Our perplexities regarding eternality are compounded, I will argue here, by a failure to re...

H ow do smalland medium-sized firms raise external equity capital? In this paper, I describe two markets that entrepreneurs of smalland medium-sized enterprises use in the United States to raise equity: the organized private equity market and the market for angel capital. Both markets are important sources of equity capital for smalland mediumsized firms. However, until recently, not much was k...

The generator in the generative adversarial network (GAN) learns image generation a coarse-to-fine manner which earlier layers learn an overall structure of and latter ones refine details. To propagate coarse information well, recent works usually build their generators by stacking up multiple residual blocks. Although block can produce high-quality as well be trained stably, it often impedes f...

Trophy hunting has severe consequences on wild animals’ behaviors, which in return implications for affecting wildlife populations. The Selous Game Reserve is a protected area Tanzania that been subjected to commercial trophy decades, and information about the effects of welfare still scarce. Flight Initiating Distance (FID) can be good measure evaluate animals level risk perception towards ant...