Finals Flashcards
It is the knowledge communicated or obtained concerning a specific fact or circumstance
Information
Facts provided or learned about something or someone.
Information
A period starting in the last quarter of the 20th century.
Information Age
Information became effortlessly accessible through publications and through the management of information by computers and computer networks.
Information Age
Tor F
The information age is a true new age, based upon the interconnection of computers via telecommunications, with these information systems operating on both real-time and as-needed basis. Furthermore, the primary factors driving this new age forward are convenience and user-friendliness which, in turn, will create user-dependence. (James R. Messenger, Theory of Information Age, 1982)
True
Human cost of information overload.
Information Anxiety
It is produced by that ever-widening gap between what we understand and what we think we should understand. It is the black hole between data and knowledge, and what happens when information doesn’t tell us what we want to know? (Richard Saul Wurman, Information Anxiety)
Information Anxiety
Information must compete.
Newer is equated with truer.
Selection is a viewpoint.
The media sells what the culture buys.
Truths of the Information Age (pt1)
The early word gets the perm.
You are what you eat and so is your brain.
Anything in great demand will be counterfeited.
Truths of the Information Age (pt2)
Undead information walks ever on.
Media presence creates the story.
The medium selected the message.
The whole truth is a pursuit.
Truths of the Information Age (pt3)
A technological advancement or breakthrough that is making use of matters or different materials at small scale.
Nanotechnology
The idea of manipulating and controlling things on an extremely small scale.
Nanotechnology
tudy of phenomena and fine-tuning of materials at atomic, molecular, and macromolecular scales; properties differ from those at a larger scale (according to European commission)
Nanotechnology
Technology working with and producing things at atomic level
How much smaller is this?
Nanotechnology
approx. 1 and 100 nanometers
They use atoms and molecules to design new materials that have improved or new properties
Nanotechnologist
T or F
Nanomaterials have leaser surface area, resulting to increased chemical reactivity
Decreasing size of particles is related to changes in particle’s magnetic, optical, and electrical properties
False
Nanomaterials have greater surface area, resulting to increased chemical reactivity
Decreasing size of particles is related to changes in particle’s magnetic, optical, and electrical properties
Possess special size-dependent properties such as: color, fluorescence, melting point, and chemical reactivity which can be used for plenty of purposes.
Note
Benefits of Nanotechnology in Medicine
SMC
Made up of a clear silicone microfluidic chamber
Provide faster, cheaper, and far more accurate results than any other available diagnostic equipment
Benefits of nanotech in med
LOAC
Has developed and can have promising contributions in diagnostics, drug delivery, molecular imaging, and tissue welding among others LAB-ON-A-CHIP
Benefits of nanotech in med
Single-Walled carbon nanotubes
Dr. Robert Haddon used this as a material scaffolding to hold up regenerating bone
Single-Walled carbon nanotubes
Benefits of Nanotechnology in the environment
Ferroxane membrane - generated from iron oxide nanoparticles by Center for Biological and Environmental Nanotechnology (CBEN)
Can be used as waste treatment & water purification
Silver nanoclusters -
catalysts that can significantly reduce the polluting by-products generated in the production of paints, household detergents and automotive brake fluids
Benefits of Nanotechnology
in the food industry
Nanocomposites - heterogeneous materials comprising multiple different phase domains
Nano clay schematics
Packaging materials
Exhibit good gas–barrier properties against visible and UV light
Benefits of Nanotechnology
In electronics
LED and OLED
Organic light-emitting diodes
Brighet, thinner, lighter, flexible, easier to produce, can be made to larger sizes and consume much less power
Magnetic random access memory - Able to boot almost instantly, can quickly and effectively save data during a system shutdown
Silver nanoparticle ink - forming conductive lines and print prototype circuit board
Benefits of Nanotechnology
in Electricity
Energy is not widely available to many people around the world.
Richard E. Smalley
Nobel laureate
Have said that energy tops the list of the top 10 problems facing humanity over the next 50 years
T or F
Advances in microtechnology = key to achieving a sustainable energy future
False
Advances in nanotechnology = key to achieving a sustainable energy future
Specific innovations in energy sector:
Nano optimized lithium-ion batteries - improved storage capacity; increased lifespan and find use in electric vehicles
Dye sensitized solar cells (DSSC) or Gratzel cells - photovoltaic cells that convert any visible light into electrical energy
- make use of sensitizes with a broad absorption band coupled with nanocrystalline titanium oxide
- imitate the process of photosynthesis in green plants
Nanoscale carbon black - added to modern automobile tires as reinforcing filler; increases tire strength and longevity; reduce rolling resistance which leads to fuel savings up to 10%
Risks of Nanotechnology
Toxicity
Chemical structure
Nanoparticle analysis method
Full-risk safety assessment on human health and environment
Life cycle risk assessment
Good experimental design in manufacturing
Other Risks concern of Nanotechnology
Mobility
Solubility
Disposal of nanoparticles
Causes significant damage to the human body and environment
Increased chemical activity because of greater surface area than bulk particles
Toxicity
Determines toxicity of nanomaterial
Minor changes in chemical structures could heavily change its properties
Chemical structure
Lack of information and methods that identify nanomaterials
Nanoparticle analysis method
Exposure risk, probability of exposure, toxicological analysis, transport risk, transformation risk, ability to recycle
Full-risk safety assessment on human health and environment
Used to predict the environmental impact
Life cycle risk assessment
Reduce the production of material waste
Good experimental design in manufacturing
May be emitted directly to air from the source
Mobility
Many are soluble to water and are difficult to separate if inappropriately handled
Solubility
Control over the structure of matter
The Challenge Of Technological Development
Sense of the lower bounds of future possibilities
The Challenge Of Technological Foresight
Sense of the lower bounds of future possibilities
The Challenge Of Technological Foresight
Clearer understanding of what these technological possibilities
The Challenge Of Credibility And Understanding
Formulating policies based on understanding
The Challenge Of Formulating Public Policy
Methods to address the negative implications of nanotechnology:
Full life-cycle analysis of nanotechnology products
Risk management
Scientific experimentation
Establishing regulatory systems
Reevaluation of existing regulating systems
Groups of people who are incharge in using the nanotechnology
International Council on Nanotechnology (ICON)
National Nanotechnology Initiative (NNI)
The following are the benefits of GMOs except:
a. None of the choices
b. Resistance to pests and disease
c. Ecological imbalance
d. Greater food security
e. Increased crop yields
Ecological imbalance
Used as a material scaffolding to hold up regenerating bone
Single-Walled Carbon Nanotubes
Generated from iron oxide nanoparticles which can be used as waste treatment and water purification
Ferroxane Membrane
The following is true about Nanotechnology except:
a. Nanomaterials have greater surface area resulting to increased chemical reactivity
b.Nanomaterials possess unique properties
c.Decreasing size of particles is related to changes in particle’s magnetic, optical and electrical properties
d.None of the Choices
e.Size Matters
None of the Choices
Nanotechnology application in medicine made up of a clear silicone microfluidic chamber
Lab on a Chip
A process where genetically modified animals were used to grow transplant tissues for human transplant organs
Xenotransplantation
The following are risks and controversies on GMO except:
a. None of the Choices
b. Possible exposure to new allergens
c. Reduced costs for drug production
d.Reduction in the viability of GMO offspring
e.Change in organism’s growth rate and respose to environmental factors
Reduced costs for drug production
Any living thing that has had its genetic material altered in some way through human scientific interference
GMO
Catalysts that can significantly reduce the polluting by products generated in the production of paints, household detergents and automotive brake fluids
Silver Nanoclusters
The following are problems/issues in the Health of the Society except:
a.None of the Choices
b.Pollution
c.Unemployment
d.Overuse and misuse of technology
e.Maleducation
Unemployment
Added to modern tires as reinforcement filler to increase strength ang longevity
Nanoscale Carbon Black
Successfully created a database that focused on the environmental, health, and safety implications of nanotechnology
ICON
Study of phenomena and fine tuning of materials at atomic, molecular, and macromolecular scales
Nanotechnology
Make use of sensitizers with a broad absorption band coupled with nanocrystalline titanium oxide
Gratzel Cells
Toxicity similar to asbestos fiber
Carbon Nanotubes
Defined as the vast variety of life forms in the entire Earth
Biodiversity
The following are categories of risks in Genetic Engineering except:
a. None of the Choices
b. Environmental Hazards
c. Agricultural Risks
d. Economic Factors
e. Human Health Risks
c. Agricultural Risks
A technique that allows genes and DNA to be transferred from one source to another
Genetic Engineering
