Despite the growing body of work on molecular components required for regenerative repair, we still lack a deep understanding of the ability of some animal species to regenerate their appropriate complex anatomical structure following damage. A key question is how regenerating systems know when to stop growth and remodeling - what mechanisms implement recognition of correct morphology that sign...

Tests of ultra-low sulfur diesel blended with soy-biodiesel at 5% and 20% were conducted using a 2002 model year Cummins ISB engine (with exhaust gas recirculation) that had been retrofitted with a passively regenerated catalyzed diesel particulate filter (DPF). Results show that on average, the DPF balance point temperature (BPT) is 45°C and 112°C lower for B20 blends and neat biodiesel, respe...

STUDIES of the regeneration of feathers after plucking show the existence of considerable differences in the time intervals before the commencement of regeneration in individual feathers. In normal moulting, the development of the new feather starts before the old feather is shed, and as growth of the new feather continues and it emerges from the follicle, it may frequently be seen projecting w...

The act of autotomy and subsequent limb regeneration occurs fairly frequently in wolf spiders. Limb regeneration however can have its tradeoffs, causing a decrease in mass and prolonged development; this process can sometimes result in a limb that is shorter, misshaped, and discolored. Differential uses across the legs may influence how spiders invest in their regeneration. In both sexes, the f...

Abstract This research is aimed at determining the health condition and productivity of Scots pine ( Pinus sylvestris L.) stands created during 1906–1908 on initiative Prof. V. D. Ogievsky. The scheme silvicultural experiments included: influence different widths directions clear felling natural regeneration, testing plantations pure mixed composition choice methods for their creation. In terms...

establishment of an efficient and reproducible regeneration protocol is one of the basic prerequisites for genetic transformation of any crop plant. in vitro culture of lentil has proven to be difficult. in spite of a number of reports on the regeneration of this plant, very few satisfying and reproducible protocol has yet been reported. this study carried out for investigation of different hor...

Vehicle models whose propulsion system is based on electric motors are increasing in number within the automobile industry. They will soon become a reliable alternative to vehicles with conventional propulsion systems. The main advantages of this type of vehicles are the non-emission of polluting gases and noise and the effectiveness of electric motors compared to combustion engines. Some of th...

Motoneurons reinnervate the distal stump at variable rates after peripheral nerve transection and suture. In the rat femoral nerve model, reinnervation is already substantial 3 weeks after repair, but is not completed for an additional 7 weeks. However, this "staggered regeneration" can be temporally compressed by application of 20 Hz electrical stimulation to the nerve for 1 hr. The present ex...

Skin has important functions in several life-preserving processes such as hydration, protection against chemicals and pathogens, and heat regulation. Severe damage to the skin may therefore be life-threatening. Skin regeneration and wound healing require an orchestrated integration of complex biological and molecular events, which include inflammation, proliferation, and remodeling. Despite the...