t-shape profile barriers are one of the most successful barriers among many different profiles. it has been shown that using welled diffusers on the top of t-shaped barriers makes a reactive barrier that shows better performance than that of any other used profile barriers compared with their equivalent absorbent barrier. the contribution of the top surface of reactive t-profile barriers to the...

AIMS Hepatitis C virus (HCV) infection is a common chronic complication of injection drug use. Methadone maintenance programs contain large numbers of patients infected with HCV. This paper reviews HCV infection with emphasis on the medical care of HCV-infected, or HCV and human immunodeficiency virus co-infected, patients on methadone or buprenorphine maintenance. METHODS Literature searches...

We demonstrate all-electrical spin injection, transport, and detection in heavily n-type-doped Si nanowires using ferromagnetic Co/Al(2)O(3) tunnel barrier contacts. Analysis of both local and nonlocal spin valve signals at 4 K on the same nanowire device using a standard spin-transport model suggests that high spin injection efficiency (up to ~30%) and long spin diffusion lengths (up to ~6 μm)...

Introduction Fluorescein angiography (FA) was introduced in ophthalmology by Novotny and Alvis in the sixties of the last century. They took serial fundus photographs after intravenous injection of sodium fluorescein to study the retinal and choroidal circulation(1). Initially, they used this technique in diabetic and hypertensive patients and after, the technique was used in age-related macula...

Introduction and Aims. One of the most substantial costs of drug use is lost productivity and social functioning, including holding of a regular job.However, little is known about employment patterns of injection drug users (IDU).We sought to identify factors that were associated with legal employment among IDU. Design and Methods.We describe the employment patterns of participants of a longitu...

The purpose of this review was to present clay–cement suspensions that are mainly used in the construction and renovation hydrotechnical facilities flood protection. We characteristics slurries waterproofing barriers. One their significant components clays different types origins. Examples kaolin-type smectite-type clays, which associated minerals, as balanced presented. As mentioned, before hy...

Our research group has been investigating various aspects of graphics recognition techniques for more than ten years. We have worked on map analysis, symbol recognition, dimension analysis and the conversion of engineering drawings to CAD models. Lately, we are also conducting research on the interpretation of architectural drawings. In addition, we have built up a software platform of generic ...

In the United States, approximately 25% of the 40,000 new human immunodeficiency virus (HIV) infections each year are secondary to injection drug use. Worldwide, there are an estimated 12.6 million injection drug users, and 10% of HIV infections (420,000 infections in 2003) are associated with this practice. Buprenorphine is a new medication used to treat opioid dependence that shows promise fo...

The interfaces formed between pentacene (PEN) and perfluoropentacene (PFP) molecules and Cu(111) were studied using photoelectron spectroscopy, X-ray standing wave (XSW), and scanning tunneling microscopy measurements, in conjunction with theoretical modeling. The average carbon bonding distances for PEN and PFP differ strongly, that is, 2.34 A for PEN versus 2.98 A for PFP. An adsorption-induc...