i ntroduction: assessment of cellular cytotoxicity is a regular method for evaluating the biocompatibility of novel materials. in a recent study, 5% fluoride varnish (duraflur) has shown reasonable sealing ability and coverage of root canal walls when used as a sealer. the aim of the present study was to compare cytotoxicity of duraflur varnish with two popular commonly used root canal sealers ...

Aim: Most endodontic sealers show antimicrobial activity before setting, but most of them also lose this ability after setting. Addition of an antibiotic may affect the properties of sealers such as sealing ability, setting time, and so on. The aim of this study was to assess whether the addition of antibiotics (amoxicillin, doxycycline, and clindamycin) improves the sealing ability of AH 26 se...

Plasma of 2 patients out of 255 with either leukemia or lynlphosarcoma yielded large numhers of 10 and 25 m!, particles in phosphotungstate negatively stained prepal·ations. For I of the 2, repeated sampling over a period of months showed continuing high particle incidence until death. The particles were unlike any found in a survey of over 300 human plasma samples.-Nat Cancer Inst Monogl' 21: ...

Current theories of justice emphasize social identity reasons for why people care about justice to the relative neglect of personal identity concerns, that is, people’s need to express, defend, and live up to personal moral standards. The authors present a value protection model that predicts that self-expressive moral positions or stands (“moral mandates”) are important determinants of how peo...

The Panasas file system uses parallel and redundant access to object storage devices (OSDs), per-file RAID, distributed metadata management, consistent client caching, file locking services, and internal cluster management to provide a scalable, fault tolerant, high performance distributed file system. The clustered design of the storage system and the use of clientdriven RAID provide scalable ...

Disk arrays have been proposed as a way of improving I/O performance by using parallelism among multiple disks. This paper focuses, however, on improving the performance of disk array systems in the presence of disk failures, which are signi"cant for applications where continuous operation is of concern. Although several approaches have been explored, the goals of achieving high performance and...

introduction : the aim of this study was to examine and compare the apical sealing ability of ah26, ah plus and ah plus jet using a fluid filtration model. materials and methods : 70 single-rooted teeth were dissected from the cement-enamel junction. canals were prepared with protaper rotary system and manual k files and irrigated with 5.25% naocl and 17% edta. ten teeth were assigned as contro...

OBJECTIVES: In acquired hemophilia (AH), autoantibodies (inhibitors) impede blood coagulation factors leading to severe bleedings. Cornerstones of a successful treatment are the control of bleeding and an eradication of autoantibodies. The present study is an update of our previous documentation of the treatment of high-titer AH patients with severe life-threatening bleeding undergoing the modi...

INTRODUCTION Gonadotropin-releasing hormone analogs (GnRHa) are the treatment of choice for CPP. We investigated growth in GnRHa-naïve subjects, treated with leuprolide acetate 1-month depot for CPP. METHODS This prospective, open-label study had a long-term, observational, follow-up period. Forty-nine females and 6 males were enrolled. Leuprolide acetate depot was administered intramuscularl...