Cellular processes depend on controlled transport of material across the cell membrane, typically by the formation of ion specific channels and pores. The major difficulty in studying trans-membrane pores experimentally is that they are usually below the theoretical resolution of light microscope. Thus, pores have been produced and investigated extensively in membranes using indirect techniques...

Electrospinning process is used in the manufacturing industry to generate nanofibers in an efficient way. The principle of this process is the deformation of a drop by the application of an electric field. The strength of the electric field generates force that makes the drop to elongate. Four cases are studied in order to show that the force distribution varies along the drop surface. In case ...

Closed mines pose significant risks to the environment and human health. Uranium mine contamination of surface water, groundwater and soil have received moderate attention, but few studies have investigated dust transport of uranium. The latter has immediate implications for remediation efforts and environmental/human health regulators. Frequent dust storms intensify aeolian transport of uraniu...

Staphylococcus aureus is an epidemiologically important pathogen. Nasal colonization occurs in approximately 27% of healthy individuals. Methicillin-resistant S. aureus (MRSA) nasal colonization is increasing among the healthcare personnel in US hospitals, and the percentage of MRSA isolated from hospitals in Louisiana has almost doubled over the past decade.1 Although a variety of studies have...

BACKGROUND The number of medical undergraduates taking part in Student Scientific Activities (SSA) at Jessenius Faculty of Medicine Comenius University in Slovakia remains low. The aim of this study was to discover some of the factors responsible and suggest improvements. METHODS An anonymous 30-item questionnaire was devised and sent to 245 medical undergraduates (UG) of the 1st, 2nd, 3rd an...

ow do you construct a channel between cells ? The first step in answering this question was to isolate the components of one type of channel—the gap junction. H Daniel Goodenough had been pursuing gap junction proteins since his days as a graduate student in the mid-1960s with Jean-Paul Revel, who helped discover the structures (Revel and Karnovsky, 1967; see “Defining gap junctions” JCB 169:37...

Studies conducted in medical education show that personality influences undergraduate medical students academic and clinical performances and also their career interests. Our aims with this exploratory study were: to assess the contribution of graduate entry students to the diversity of personality in medical student populations; to assess whether eventual differences may be explained by progra...