منابع مشابه
Properties of PTFE tape as a semipermeable membrane in fluorous reactions
In a PTFE tape phase-vanishing reaction (PV-PTFE), a delivery tube sealed with PTFE tape is inserted into a vessel which contains the substrate. The reagent diffuses across the PTFE tape barrier into the reaction vessel. PTFE co-polymer films have been found to exhibit selective permeability towards organic compounds, which was affected by the presence of solvents. In this study, we attempted t...
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Severe vertical ridge deficiency in the anterior maxilla represents one of the most challenging scenarios in bone regeneration. Under ideal circumstances, guided bone regeneration in combination with soft tissue management has shown predictable esthetic and functional outcomes. Success largely relies on primary wound closure during and after the surgical procedure. Surgical sites present differ...
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Today large amounts of data are stored on tertiary storage media such as magnetic tapes and optical disks. DBMSs typically operate only on magnetic disks since they know how to maneuver disks and how to optimize accesses on them. Tertiary devices present a problem for DBMSs since these devices have dismountable media and have very diier-ent operational characteristics compared to magnetic disks...
متن کاملMy Inspiration
I sometimes have difficulty walking and use a cane. Recently on a journey to Northern Arizona, I knew I was going to pass near an iconic image of the Colorado River and the desire to witness that sight kept teasing me. I had read about the access to Horseshoe Bend and knew that it included a walk through sand that was about a mile from the parking lot. Although the hike was described in the gui...
متن کاملDiaphragm thickening during inspiration.
Ultrasound has been used to measure diaphragm thickness (Tdi) in the area where the diaphragm abuts the rib cage (zone of apposition). However, the degree of diaphragm thickening during inspiration reported as obtained by one-dimensional M-mode ultrasound was greater than that predicted by using other radiographic techniques. Because two-dimensional (2-D) ultrasound provides greater anatomic de...
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ژورنال
عنوان ژورنال: British Dental Journal
سال: 2017
ISSN: 0007-0610,1476-5373
DOI: 10.1038/sj.bdj.2017.253