Abstract Study question Do the in vitro motility characteristics of sperm collected using a microfluidic device (ZyMot) differ from those by density gradient centrifugation (DGC)? Summary answer ZyMot-collected had longer-lasting than DGC, but head beat-cross frequency was inferior due to absence washing vitro. What is known already ZyMot (DxNow, Inc., USA) can sort highly motile with low react...

People are likely to cooperate with the police when they view their authority as legitimate. Police legitimacy is established by people’s trust in them and satisfaction way perform duties. This study surveyed correlated community police’s performance of There were 2,381 respondents from different provinces Cordillera Administrative Region, Philippines, who participated survey. The moderately mu...

This research is motivated by the fact that there are still teachers who have difficulty in applying learning model well classroom learning, so researchers intend to examine what obstacles or application of PBL social studies elementary grade IV. Teachers as one important components process need pay attention needs and characteristics their students preparing quality learning. To achieve this, ...

A spectroscopic analysis of the DAB white dwarf PG 1115+166 is presented. The observed hydrogen and helium line profiles are shown to be incompatible with model spectra calculated under the assumption of homogeneous or stratified chemical compositions. In contrast, an excellent fit to the optical spectrum of PG 1115+166 can be achieved if the object is interpreted as an unresolved double degene...