Cover photo
Rumiana Nikolova
Attended University of Sofia - Medicine
Lives in Veliko Tarnovo, Bulgaria
137,270 followers|38,232,191 views


Rumiana Nikolova

Shared publicly  - 
ziyad Oweyda's profile photoJames Morgan's profile photoMaria Nestor's profile photolilia Diaz's profile photo
Warmly thanks All for lovely plusses & much apprecated All for resharing !!!

Rumiana Nikolova

Shared publicly  - 
WOW !!! Good boxers...:-)))

#Caturday   #Funnygifs   #Animallovers   #Cats  
R Double U's profile photoSonja Schönbauer's profile photo

Rumiana Nikolova

Critique My Collection  - 
Welcome in my collection....enjoy !!
Ellie Kennard's profile photoAndy Mang's profile photoRumiana Nikolova's profile photo
+Andy Mang You're very kind, as always dear Andy !!!
Thanks a lot for your wonderful wishes / but I'm so busy withe the incoming ellections / & wish you the same my dearest friend:-))
Add a comment...

Rumiana Nikolova

Shared publicly  - 
A full moon, harvest moon, super moon, and total eclipse of the moon—this one has it all.
Francesco Del Santo's profile photoMario Falcetti's profile photoRumiana Nikolova's profile photoRichard Krawczyk (Richard M Krawczyk)'s profile photo
thanks +Mario Falcetti for you as well

Rumiana Nikolova

Shared publicly  - 
WIsh you to Everyone a great week !!!

#Olympus   #Hqspmonocrome   #MonochromeMonday   #Allthingsmonochrome  
#monochromephotography   #leaves  
Kailash Khedekar's profile photoRumiana Nikolova's profile photoSheila Christine's profile photoJaswant Singh's profile photo
+Kailash Khedekar Thank you...

Rumiana Nikolova

Shared publicly  - 
People are so quick to judge others faults but never quick to point out their own.

#Quote   #Quoteoftheday  
Nagy Fathy's profile photo
Have her in circles
137,270 people
Nau shayrwan's profile photo
David T. Beckham's profile photo
Igor Panin's profile photo
gg. ejaz's profile photo
leila's profile photo
1999MakeupArtist's profile photo
Micheal Decker's profile photo
Aaron Thomas's profile photo
Tressie Talitha's profile photo

Rumiana Nikolova

Shared publicly  - 
Happy Saturday to Everyone !!

H/T +Friends of NASA 
Svetlana N's profile photoRumiana Nikolova's profile photoFrancisco Turull's profile photoTR M's profile photo
Thank you so much for nice wishes & for you as well dear Svetlana, warm greetings and hugs +Svetlana N ! 

Rumiana Nikolova

Shared publicly  - 
H/T  +Mark Bruce 

SciTech #ScienceSunday Digest - 38/2015.
Permalink here: 

DNA origami polymers, Sonogenetic neurons, Transparent brains, Prosthetics sense touch, Hacking neurons, Microfluidic RAM, Kirigami 3D fabrication, Algorithmic language parsing, Graphene filament, Tunable cheap catalysts. 

1. Precisely Assembled Polymers from DNA Origami
Self assembled DNA origami technology has now been used to controllably form precisely ordered arrangements of conductive polymers in two and three dimensions This was enabled by functionalising a conjugated polymer with a specific sequence of single-stranded DNA; when the polymer is then added in solution to a surface on which a DNA origami array has already been formed the polymer strands can be made to form specific shapes and structures as desired, and because the polymer remains conductive this suggests the technique might be used for molecular circuit design. 

2. Sonogenetics to Control Neurons with Sound
In a similar way to how optogenetics uses neurons genetically altered with light-sensitive proteins to make them respond to light, the new field of sonogenetics uses a different ion channel protein that is sensitive to focused pulses of ultrasound to make genetically altered neurons respond to ultrasound The embedded video shows a nematode worm being made to switch direction when ultrasound is switched on, also showing the genetically-altered neurons responsible firing up in response. Ultrasound can pass through tissues and structures that light cannot and so the technique might be less or non-invasive compared to optogenetics. Although optogenetics got a boost this week too

3. Creating Better Transparent Brains
A new technique provides a better method for turning brains transparent in order to better image 3D brain anatomy at high resolution Called ScaleS, the technique is an improvement on other methods that results in minimal tissue damage, uses a mixture of sorbitol and urea, is compatible with labelling techniques, and preserves tissue integrity able to withstand micron-slicing and electron microscopy. As a proof of concept the team used the tool to derive new insights into the location of Alzheimers plaques and different specialised brain cells. 

4. DARPA’s Prosthetics Sense Touch
A new advance from DARPA in prosthetics and brain-computer-interfaces has resulted in the first genuine prosthetic control + sensation closed-loop system The prosthetic arm attached to a 28 year old volunteer incorporated both electrode implanted into (i) the motor cortex to read brain signals and move the arm and hand, and (ii) the relevant area of the sensory cortex to input signals from sensitive touch sensors on the fingers of the prosthetic arm. In blind tests the person successfully reported which finger was touched and even knew when the researchers tried to trick them; they reported that it felt as though someone was touching their real hand. 

5. Hacking Neurons
First, a study in rats with spinal cord injuries demonstrates that synchronising attempted muscle movement with neural stimulation - via a Neurochip-2 device in this case - provides a measureable and significant boost to neuroplasticity that resulted in the ability to perform a learned task twice as well without the stimulation, if not quite as well before the injury Second, a group engineered the synaptic weights - from inhibitory to excitatory - on a single neuron in a nematode worm and was able to alter its behaviour to swim towards rather than away from a threat, and was able to do this by swapping out different ion channels in the live nematode

6. Storing Cells in Random Access Memory
Microfluidic circuits can now be formed into architectures that enable the functional equivalent of transistors that store and shuttle living cells instead of electrons The group created a random access memory equivalent for living cells, exerting far finer control over switching states than had ever previously been achieved, and they hope to be able to create large single-cell memories in future. The ultimate goal for tools like this is to swiftly sort through a great many cells to find rare cells that may be indicative of certain diseases or disorders. 

7. Novel 3D Fabrication Techniques with Kirigami
First, complex and closed “pop-up” 3D structures can now be formed based on Japanese Kirigami techniques after forming 2D structures with strategically-placed cuts made by conventional semiconductor fabrication methods Fundamentally this represents a new set of design rules for transforming most 2D electronics and photonics surfaces into complex 3D shapes. Second, again taking inspiration from Japanese Kirigami techniques, new 2D solar panels with strategic cuts are able to bend and flex in three dimensions to quickly alter the orientation of the solar cell’s surface towards the sun for improved efficiency

8. Better Machine Learning Language Parsing
A new machine-learning system can distinguish not just words but lower-level units in language such as phonemes and syllables Unlike other comparable systems this one is unsupervised and doesn’t rely on human expert annotations, and it should enable better handling of rare languages and more accurate determination between different accents or pronunciations. Interesting assumptions built into the system include its use of a noisy channel and that word frequency will follow a power-law distribution, a phenomenon that was covered wonderfully by Vsauce recently

9. 3D Printing Graphene Filament and Nerve Guides
First, a new start-up company Graphene 3D Lab has launched a graphene-based conductive polymer filament for use in 3D printers and which can help produce conductive components and electronic devices (a battery was produced as a demonstration product) and the material claims a conductivity 25 times better than comparable filaments Second, 3D printed silicone structures loaded with specific biochemical growth promoters act as personalised nerve growth guides to help restore nerve function and movement after damage and was successfully tested in rats

10. Tuning Cheap Catalysts for Different Reactions
A new multi-purpose catalyst platform is based on cheap graphite, the edges of which are functionalised by binding different compounds whose composition and quantity generate a specific catalytic framework able to accelerate specific reactions The approach combines both heterogeneous and molecular electrocatalysts and ultimately aims to replace expensive catalysts across a range of different industrial chemical processes including fuel cells, carbon capture, and compound synthesis. The basic materials and processes exploit materials and systems that are already employed at industrial scale, which should facilitate scale-up. 

11 comments on original post

Rumiana Nikolova

Shared publicly  - 
~ Good Friends ~

#Funnygifs   #Friendship  
Theo M's profile photoİhsan Cem “Jim” Onur's profile photo

Rumiana Nikolova

Shared publicly  - 

Rumiana Nikolova

Shared publicly  - 
R.K. sikarwar's profile photoMoura Kaiodê's profile photoDenyse Landry's profile photoХема Баймурадова's profile photo
beautiful shot..!
Rumiana's Collections
Have her in circles
137,270 people
Nau shayrwan's profile photo
David T. Beckham's profile photo
Igor Panin's profile photo
gg. ejaz's profile photo
leila's profile photo
1999MakeupArtist's profile photo
Micheal Decker's profile photo
Aaron Thomas's profile photo
Tressie Talitha's profile photo
♥ Rhysician
  • Rhysician, present
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Veliko Tarnovo, Bulgaria
Medicine ◊ Science ◊ Macrophotography
            PRACTICE MEDICINE ♥     I am Rumiana / from BULGARIA / for friends - I am  Rumi I graduated from Medical university and then remained as a lecturer at the university..  I worked in a hospital - in the surgical ward.. Now I work in shcool as physican. I'm volunteer in Bulgarian Red Cross                       My interests : - In the medical field - Photography - Fashion and arts - Public relations /PR / - I want to know more all areas of life and science - Politics..Philosophy - Good books and of course good music - Sports ..I love to dance and have fun My Google plus - page My page - Linkedin for Rumiana Nikolova I want to learn more about other countries..and new friends. I can introduce you to  my country and of course...with me...I will sometime talk about myself  and my experiences.  I will share the work of others ...You will get is my sense of laughter.Once  know me  - you will understand that I'm lady with a smile...always want to have fun... My desire is  for good friendship ! Thank you so much for visiting my profile page :))          SOME OF MY FAVORITE QUOTES:. "The only true wisdom is in knowing you know nothing" -  Socrates "Those who trade freedom for the illusion of security deserve neither freedom nor security "  - Benjamin Franklin THE MOST IMPORTANT THING IN LIFE IS TO BE YOURSELF !!!                                                     
Bragging rights
Participate in charitable initiatives ♣ I'm a volunteer in Bulgarian Red Cross ♣ Public speaker ♣ I participate in different projects ♣
Collections Rumiana is following
View all
  • University of Sofia - Medicine
Basic Information
Looking for
Friends, Networking
March 11
Other names
Rumiana Nikolova's +1's are the things they like, agree with, or want to recommend. ─ The Tool for Google+ Statistics - Get your Free Analys...

Find out your CircleRank for Google+ or who is the top followed person on Google+. It's just for fun, but more interesting than anything els

Tastes of Health

Healthy lifestyle blog about more than just healthy food recipes

The Signs & Symptoms of Pancreatic Cancer

According to the most recent statistics from the American Cancer Society, approximately 48,960 men and women will be diagnosed with pancreat

The Google+ Profiles at Google+ ─

In this directory you can see the Google+ Profiles from Google+ at and find profiles that are worth to be circled!

Уважаеми съграждани, честит празник на светите братя Кирил и Методий, - ...

Уважаеми съграждани, честит празник на светите братя Кирил и Методий, - вестник Борба, областен всекидневник за новините от региона Велико Т

Discovered a disease? WHO has new rules for avoiding offensive names

To avoid stigma, names shouldn’t mention people, places, jobs, food, or animals

Великден - традиции и обичаи | LifeStyle

Великден е най-святият празник за християните по целия свят. На този ден Християнската църква отбелязва Възкресението на Божия син Исус Хрис

Double Rainbow Image, Vancouver - National Geographic Photo of the Day

A double rainbow stretches over Horseshoe Bay in Vancouver, Canada, in this National Geographic Photo of the Day from our Your Shot communit

Dolphins Guide Scientists to Rescue Suicidal Girl

One day, my research team and I were following a school of bottlenose dolphins near shore as we do on a regular basis in the waters off Los

Peace&Love - жени - Fashion Days

Ангажирана с женския моден свят от 1986 г., още от тогава марката Peace&Love by ...


Put your thoughts into Words---anything in comments, share it if you like

keerthana nair

Fruits and vegetables have some amazing benefits. There are many benefits and uses of avocado too. Read all properties and health benefits o

Quick links to your favorite sites: Make Ask My Home Page. Distributed by Bandoo Media, Inc. About · Privacy © 2015

FashionEtc - Gallery

Top 10 Style Stars of the Week. 1 of 10 | Back to Article. Fergie in Oliver Tolentino. Photo credit: Getty Images. Latest Galleries · The Co

The Google+ Profiles at Google+ ─

In this directory you can see the Google+ Profiles from Google+ at and find profiles that are worth to be circled!

5 Effective Strategies for Diet Success

Wandering through the health aisles of a bookstore can be overwhelming. Shelves and shelves full of diet books that all promise the same: st

Почина Джо Кокър (допълнена)

Британският певец Джо Кокър почина на 70-годишна възраст, съобщи БиБиСи.