Structures for guiding fish around migration barriers are frequently used maintaining connectivity in regulated riverine systems. However, non-physical barriers, experimental studies providing direct and detailed observations of fish–barrier interactions rivers largely lacking. In this study, we quantify the efficiency bubble (alone or combination with light stimuli, both daylight darkness) div...

Introduction: Microbubbles are widely used as contrast agent in diagnostic ultrasound. Recently they have shown good potential for applications in the therapeutic field such as drug delivery to the brain. Recent studies have shown focused ultrasound in conjunction with injected micro-bubbles could temporarily disrupt blood-brain barrier and let therapeutic agents transport into...

The use of non-physical barriers, particularly based on acoustic and luminous stimuli has been historically used to influence the behavior fish, mainly for fishing purposes. Nowadays, behavioral barriers guidance systems have developed, not only deter movements but also promote responses with objective native fish protection, in particular potamodromous species, reducing their mortality hydraul...

The goal of the PRIN2005 “EAH conservation KM system” research project, funded by Italian Ministry of Research, is to establish an advanced integrated approach to conservation of Earthen Architecture Heritage (EAH) that support main design and planning of conservation actions, reducing the technical risk through suitable and compatible measures. Knowledge Management for supporting EAH conservat...

in recent years, need to increase the convenience of trips in railway vehicles causes that train operators and manufacturers focus on reducing the noise level which is sensed by passengers. in this paper, first the state of modeling acoustic noise in cab train is discussed and natural frequencies and acoustic mode shapes are derived and then formulation of acoustic pressure in the cab will be o...

background: every year many organizations formulate a code of ethics (coe) but when it comes to implementing, it does not achieve the desired purposes. ineffectiveness of coes can stem from different factors and surely, one of them is bad formulation. this research was conducted to identify the barriers to effective formulation of coes in one of the main state universities of medical sciences i...

We use a pulse of surface acoustic waves (SAWs) to control the electron population and depopulation of a quantum dot. The barriers between the dot and reservoirs are set high to isolate the dot. Within a time scale of approximately 100 s the dot can be set to a nonequilibrium charge state, where an empty (occupied) level stays below (above) the Fermi energy. A pulse containing a fixed number of...

background: the primary goal of antenatal testing is to identify fetuses at risk of intrauterine neurologic injury or death so that these adverse outcomes can be prevented. we want to assess nonstress test (nst) results and some parameters before and after vibro-acoustic stimulation and acupressure. we did a randomized controlled clinical trial in shahid-beheshti hospital in isfahan in 2011. ma...