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Contact-dependent Signaling

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Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
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Gap Junctions

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The cytoplasm of adjacent animal cells can exchange small molecules, ions, and secondary messengers via the communication channels which form the gap junctions. These junctions comprise a few hundred to thousands of molecular channels, each made of two halves, called the connexon hemichannel. A connexon is a hexamer of six transmembrane connexin proteins, which assemble radially, thus forming a pore or channel in the center. One connexon hemichannel docks with a corresponding connexon on the...

Gap Junctions

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|February 23, 2013

Summary

This summary is machine-generated.

UK universities partner with developing nations

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Area of Science:

Global Health
Nursing Education

Background:

Developing countries face challenges in nursing education standards.
International collaboration is key to enhancing healthcare workforce capacity.

Purpose of the Study:

To describe a collaborative model between UK universities and nursing schools in developing countries.
To evaluate the impact of this partnership on nursing education and standards.

Main Methods:

Establishing partnerships between UK higher education institutions and nursing schools in developing nations.
Delivering nursing courses and professional development through remote and in-country teaching.
Providing expert advice and mentorship to local faculty and students.

Main Results:

Nursing students receive education in their home countries, minimizing 'brain drain'.
Improved nursing education standards are achieved through tailored curricula and training.
Enhanced local capacity in nursing education and practice.

Conclusions:

Collaborative UK-university-developing country nursing partnerships effectively improve education.
This model supports sustainable healthcare development by retaining skilled professionals locally.