Migration and behaviour of Dictyostelium slugs results from coordinated movement of its constituent cells. It has been proposed that cell movement is controlled by propagating waves of cAMP as during aggregation and in the mound. We report the existence of optical density waves in slugs; they are initiated in the tip and propagate backwards. The waves reflect periodic cell movement and are medi...

background: successful anesthesia during root canal therapy may be difficult to obtain. intraosseousinjection significantly improves anesthesia’s success as a supplemental pulpal anesthesia, particularly incases of irreversible pulpitis. the aim of this study was to compare the efficacy of x‑tip intraosseousinjection and inferior alveolar nerve (ian) block in primary anesthesia for mandibular p...

A combined apparatus of a supercritical CO2 extractor (SFE) and a time-of-flight mass spectrometer (TOF-MS) was developed aiming at the direct analysis of extracts. A fused-silica capillary acts as both a pressure restrictor and an effluent injection nozzle into the TOF-MS. The tip of the nozzle was narrowed by melting and abrasion so that a greater pressure drop occurred at the tip. In the TOF...

rhinoplasty is one of the most common aesthetic procedures in the world. it is the most common aesthetic surgery procedure in iran. achieving complete patient satisfaction is almost impossible but improving the aesthetics and function of the nose is the aim of surgery. this report describes a 34 years old woman with a large bump in the tip of the nose after three times cosmetic rhinoplasties. t...

BACKGROUND The stimulation of acupoints along the meridians, but not the non-acupoints outside of the meridians, produces analgesia. Although the acupoint is defined at the body surface, the exact location of the acupoints is not known. This study aims to examine whether the intensity and duration of the analgesic effect of electroacupuncture (EA) at the Zusanli (ST36) and Sanynjiao acupoints (...

Abstract The aerodynamic performance and pressure ratio of modern aircraft engine compressor are degrading due to unsteady flow distorted loads complex phenomena in the blade tip. This paper attempts improve axial transonic stage under conditions by incorporating combination groove casing, tip injection technique with surface roughness effects. is performed for Mach number ranging between 0.8 1...

Background: Nonsurgical Rhinoplasty (NSR) using soft-cohesive crosslinked hyaluronic acid (HA) was performed to reshape the nose appearance. Knowledge of nasal anatomy mostly blood supply, adequate placement HA, and potential complications became NSRHA safe effective. Method: Twenty females underwent NSR enhance their Injection points were distributed along midline from columella bridge. HA inj...