نتایج جستجو برای: artificial organs

تعداد نتایج: 355150  

Journal: :EURASIP J. Adv. Sig. Proc. 2011
Nam H. Nguyen Douglas L. Jones Yingchen Yang Chang Liu

Most fish have the capability of sensing flows and nearby movements even in dark or murky conditions by using the lateral line organs. This enables them to perform a variety of underwater activities, such as localizing prey, avoiding predators, navigating in narrow spaces, and schooling. To emulate this capability for Autonomous Underwater Vehicles, we developed an artificial lateral line using...

The biocompatible and biodegradable polymer nanofiber with high potential for anti-bacterial coating are used for: multi-functional membranes, tissue engineering, wound dressings, drug delivery, artificial organs, vascular grafts and etc. Electrospinning nanofiber made of scaffolding due to characteristics such as high surface to volume ratio, high porosity and very fine pores are used for a wi...

Journal: :Journal of evolutionary biology 2011
K Vahed A W Lehmann J D J Gilbert G U C Lehmann

Copulation duration varies considerably across species, but few comparative studies have examined factors that might underlie such variation. We examined the relationship between copulation duration (prior to spermatophore transfer), the complexity of titillators (sclerotized male genital contact structures), spermatophore mass and male body mass across 54 species of bushcricket. Using phylogen...

Journal: :Trends in ecology & evolution 2011
William G Eberhard

There has been a recent burst of studies of the function of genitalia, many of which share several important shortcomings. Given that further studies on this topic are likely (there are probably millions of species showing rapid genital divergence), I discuss the studies critically to promote clear formulation of hypotheses and interpretation of results in the future. I also emphasize some poss...

2015
Damian Dalle Nogare Ajay B Chitnis

Several signaling pathways work together, via a protein called Amotl2a, to establish the size and shape of a zebrafish sense organ primordium.

Journal: :Mechanisms of Development 1996
Luc Leyns José-Luis Gómez-Skarmeta Christine Dambly-Chaudière

We have isolated a Drosophila mutant where the lateral parts of the notum are completely naked, leaving unaffected a median stripe of hairs. This mutation, iroquois (iro), defines a new gene which maps at 69D. We show that, in the presumptive lateral notum of mutant discs, sense organ precursor cells fail to form and the proneural gene scute is not expressed. The expression of a reporter gene i...

Journal: :Physiological research 2007
L Kolácná J Bakesová F Varga E Kostáková L Plánka A Necas D Lukás E Amler V Pelouch

ECM is composed of different collagenous and non-collagenous proteins. Collagen nanofibers play a dominant role in maintaining the biological and structural integrity of various tissues and organs, including bone, skin, tendon, blood vessels, and cartilage. Artificial collagen nanofibers are increasingly significant in numerous tissue engineering applications and seem to be ideal scaffolds for ...

1998
Edwin C. Bulloch Stephen Jacobsen Willem J. Kolff

INTRODUCTION The University of Utah's Artificial Organs Division has been experimenting with a Wearable Artificial Kidney (W AK) since 1973. This work has been funded by an NIH-NIAMDD-75-8 grant and private funds. The advantage of this type of machine over conventional dialysis machines is mostly one of psychological effect on the patient. Patients feel tied to the machine for the great lengths...

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