We study the effects of the deuteration of biradical polarizing agents on the efficiency of dynamic nuclear polarization (DNP) via the cross-effect. To this end, we synthesized a series of bTbK and TOTAPol biradicals with systematically increased deuterium substitution. The deuteration increases the radicals' relaxation time, thus contributing to a higher saturation factor and larger DNP enhanc...

Background: Semen cryopreservation is the most important section of artificial insemination programs; it allows preservation of semen fertility for a long time. Materials and Methods: The aim of the present study was to detect the effect of in vitro supplementation of 4-hydroxy Tempo on fresh and frozen spermatozoa quality of buffalo bulls. Five healthy buffalo bulls (5 ejaculates from each bul...

Five carnation cultivars (‘Grand Salam’, ‘Nelson’, ‘Kaly’, ‘Cinderella’ and ‘Tempo’) were evaluated with respect to growth, yield and quality characteristics under lath house conditions at Kala Shah Kaku Research Station, Directorate of Floriculture, Lahore during 2011. Among the cultivars studied, maximum plant height was recorded in carnation cultivar ‘Grand Salam’ (78.66 cm) closely followed...

five carnation cultivars (‘grand salam’, ‘nelson’, ‘kaly’, ‘cinderella’ and ‘tempo’) were evaluated with respect to growth, yield and quality characteristics under lath house conditions at kala shah kaku research station, directorate of floriculture, lahore during 2011. among the cultivars studied, maximum plant height was recorded in carnation cultivar ‘grand salam’ (78.66 cm) closely followed...

the waiting time between children births are called tempo. this phenomenon plays a crucial role in the child and mother health. the purpose of the present study is determination of factors which influence this variable of interest. a significance level of 5% and power of 80% considered to calculate the required sample size for this cross sectional study. the sample size of 124 women determined ...

objective: tempo is the average waiting time to next birth for a woman. role of fertility as the most important phenomenon determining population fluctuations due to the studies of it compared with other demographic phenomena be important and review the multifarious socioeconomic factors of it share  a large effective population studies. general purpose of this study is fitting the cox model to...

Automatic beat tracking and tempo estimation are challenging tasks, especially for audio music with nonbinary tempo or weak percussion. This paper proposes a Kmeans clustering approach to handle tempo estimation with one-third/triple tempo or weak percussion. In particular, the first stage is to compute the tempo curve from the tempogram by DP(Dynamic Programming). Then use Kmean clustering to ...

For the peak picking of tempo candidates, applying kmeans clustering on tempo curve is straightforward and leading to good result. But the tempo candidates obtained from tempo curve are limited and lose a lot of information for possible tempi. The study proposes the local maximum peak picking method to increase the number and information of possible tempo candidates. Therefore, the accuracy of ...

An absorptive chemically induced dynamic electron polarization (CIDEP) was generated by the quenching of singlet oxygen by nitroxide radicals (TEMPO derivatives). The spin polarization decay time of the nitroxide (measured by time-resolved EPR) correlates with the lifetime of singlet oxygen (measured by singlet oxygen phosphorescence spectroscopy). In addition, a deuterium isotope effect on the...