Results 131 to 140 of about 280,062 (388)

Inverse Statistics in the Foreign Exchange Market

open access: yes, 2004
We investigate intra-day foreign exchange (FX) time series using the inverse statistic analysis developed in [1,2]. Specifically, we study the time-averaged distributions of waiting times needed to obtain a certain increase (decrease) $\rho$ in the price
A Johansen   +13 more
core   +1 more source

Ticks and the city - are there any differences between city parks and natural forests in terms of tick abundance and prevalence of spirochaetes?

open access: yesParasites & Vectors, 2017
BackgroundIxodes ricinus ticks are commonly encountered in either natural or urban areas, contributing to Lyme disease agents Borreliella [(Borrelia burgdorferi (sensu lato)] spp. and Borrelia miyamotoi enzootic cycles in cities.
M. Kowalec   +5 more
semanticscholar   +1 more source

Oligohistidine‐Functionalized Single‐Walled Carbon Nanotube‐Guided RNA Delivery to Improve Shoot Regeneration Efficiency in Plant Calli

open access: yesAdvanced Functional Materials, EarlyView.
The pH‐sensitive His6‐SWNTs, which is functionalized with oligohistidine, can deliver STTM396 molecules into callus cells. The STTM396–SWNT complex treatments enhance shoot regeneration efficiency by regulating the miR396‐GRF module in Arabidopsis and tomato calli.
Yeong Yeop Jeong   +7 more
wiley   +1 more source

Smart Nanogels as Enzyme‐Driven Nanomotors for Navigating Viscous Physiological Barriers

open access: yesAdvanced Functional Materials, EarlyView.
Two families of urease‐powered nanomotors (NMs), with and without a p‐(2‐hydroxyethyl methacrylate) (p‐HEMA) shell, have been successfully prepared. Both types exhibit effective motion in highly viscous synovial fluid media at low urea concentrations (25 mM).
David Esporrín‐Ubieto   +6 more
wiley   +1 more source

Detection of naturally infected vector ticks (acari: ixodidae) by different species of babesia and theileria agents from three different enzootic parts of iran.

open access: yesJournal of Arthropod-Borne Diseases, 2013
Background: Diagnostic study of vector ticks for different pathogens transmitted specifically have been done by Iranian old scientists working on the basis of biological transmission of pathogens.
Mohammad Abdigoudarzi
doaj  

Disparity in the Natural Cycles of Borrelia burgdorferi and the Agent of Human Granulocytic Ehrlichiosis

open access: yesEmerging Infectious Diseases, 1999
We studied the prevalence of Borrelia burgdorferi and the agent of human granulocytic ehrlichiosis (HGE) among questing nymphal and adult Ixodes scapularis ticks of the same generation and the infectivity of wild white-footed mice for ticks feeding on ...
Michael L. Levin   +2 more
doaj   +1 more source

Prevalence of Tick-Borne Pathogens in Ticks in Sicily

open access: yesTransboundary and Emerging Diseases, 2010
The prevalence of Anaplasma, Ehrlichia, Rickettsia and Babesia/Theileria species was analysed in questing and feeding adult ticks in Sicily. A total of 678 ticks were collected and analysed in this study. Of these, 29 were questing ticks and 649 were collected from infested cattle, sheep, goats or dogs.
J. de la Fuente   +6 more
openaire   +4 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Experimental Infection of Amblyomma aureolatum Ticks with Rickettsia rickettsii

open access: yesEmerging Infectious Diseases, 2011
We experimentally infected Amblyomma aureolatum ticks with the bacterium Rickettsia rickettsii, the etiologic agent of Rocky Mountain spotted fever (RMSF). These ticks are a vector for RMSF in Brazil. R.
Marcelo B. Labruna   +8 more
doaj   +1 more source

Measurement of the Fermi Constant by FAST

open access: yes, 2007
An initial measurement of the lifetime of the positive muon to a precision of 16 parts per million (ppm) has been performed with the FAST detector at the Paul Scherrer Institute.
A. Barczyk   +19 more
core   +2 more sources

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