Green energy - The sustainable energy source of the future 01262016Tony Green
Today we primarily use fossil fuels to heat and power our homes and fuel our cars. It’s convenient to use coal, oil, and natural gas for meeting our energy needs, but we have a limited supply of these fuels on the Earth. We’re using them much more rapidly than they are being created. Eventually, they will run out.
Organic-Based Sources; Landfill Methane; Biomass energy; Hydropower ; Flowing water (Hydroelectric); Tidal power (waves and tides); Wave; Geothermal Energy (Geothermal power); Hydrogen Energy; Solar energy: (Energy from sunlight Rapid growing) ; Wind Energy
Introduction to Geothermal Energy as an effort to spread public awareness on Sustainable Development in accordance with United Nation's Sustainable Development Goals.
Environmental Impacts of Electricity ProductionDenise Wilson
A comprehensive overview of the many environmental impacts (on air, water, land, and ecosystems) of producing electricity from coal, natural gas, nuclear energy, water, wind, sun, and biomass.
amazing ppt on geothermal energy - how it's extracted ,types of engines ,their description and its pros and cons,future of geothermal energy,technology required etc
Green energy - The sustainable energy source of the future 01262016Tony Green
Today we primarily use fossil fuels to heat and power our homes and fuel our cars. It’s convenient to use coal, oil, and natural gas for meeting our energy needs, but we have a limited supply of these fuels on the Earth. We’re using them much more rapidly than they are being created. Eventually, they will run out.
Organic-Based Sources; Landfill Methane; Biomass energy; Hydropower ; Flowing water (Hydroelectric); Tidal power (waves and tides); Wave; Geothermal Energy (Geothermal power); Hydrogen Energy; Solar energy: (Energy from sunlight Rapid growing) ; Wind Energy
Introduction to Geothermal Energy as an effort to spread public awareness on Sustainable Development in accordance with United Nation's Sustainable Development Goals.
Environmental Impacts of Electricity ProductionDenise Wilson
A comprehensive overview of the many environmental impacts (on air, water, land, and ecosystems) of producing electricity from coal, natural gas, nuclear energy, water, wind, sun, and biomass.
amazing ppt on geothermal energy - how it's extracted ,types of engines ,their description and its pros and cons,future of geothermal energy,technology required etc
A presentation on Petroleum for the
Course: B.Tech. Polymer Science in DU FYUP
Subject: Raw Materials,
Year - For Ist Year Students.
You may download this ppt to get a better idea about the contents and animation!
this presentation deals with the formation, depletion, conservation of various sources of energy. it also includes the various advantages and disadvantages of the sources.
Weather satellites and how to read the signsKella Randolph
Weather refers to day-to-day temperature and precipitation activity. Climate is for the averaging of atmospheric conditions over longer periods of time. Air mass – a large body of air that is similar in temperature, humidity, and air pressure throughout.
Air masses can measure hundreds or even thousands of miles across
The definition of the universe is all matter and energy. Our Earth, our Sun and the planets, moons, asteroids, etc., that make up our galaxy, are just a very small part of the universe.
Review of concepts of earth science including river delta, earthquakes, subduction, tsunami, volcanoes, two sunken cities, fossil fuels, clean energy, water use and protection, properties of water.
NASA has some information based on more than fifty years of research and exploration of the moon. Impact theory says that two planets collided billions of years ago causing parts of both to combine and form a smaller sphere that orbits the larger one.
Estuaries unique environment makes them a great place for humans and animals. Humans benefit from the beauty of estuaries and the food and resources they provide. Estuaries make great tourism attractions or harbors and ports
Koppen classification and land area characteristics [autosaved]Kella Randolph
What is the difference between weather and climate? Koppen Classification is a tool that helps us recognize the many different climates in biomes worldwide.
The earth is getting warmer due to the global warming. There are many climates all over the planet. Some areas of Earth have snow every day, and some are so dry they almost never have rain or snow
Burning coal makes ozone, smog, acid rain, climate change, mercury pollution
Oil spills damage all living things
Natural gas is poisonous and is colorless, odorless and tasteless. We must add a bad smell to it in order to prevent being killed by a gas leak
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
6. Renewable energy
sources is a natural
resource that can be
replaced in a
reasonable amount of
time.
Non-renewable energy
resource
Is a resource that is
unable to be replaced
naturally or is replaced
very slowly
Non-renewable vs Renewable
7. Energy is released as heat
and light when coal burns.
Photo courtesy of www.politicalmirror.com
Energy is stored in coal.
Photo courtesy of buzz.money.cnn.com
Energy can exist in many forms. It can be
stored or expressed actively.
8. Fossil fuels include peat, coal, oil, and natural gas.
Fossil fuel is any fuel
formed deep in Earth’s
crust from the remains of
plants and animals.
9. Fossil fuels are, oil, natural gas, and coal. Peat is not as old, but is
a fossil fuel, too.
There are three major
forms of fossil fuels: coal,
oil and natural gas. All
three were formed many
hundreds of millions of
years ago before the time
of the dinosaurs – hence
the name fossil fuels.
At some point, the supply
of fossil fuels will be gone,
and humans must use
other, cleaner, and
renewable sources for
energy to power our
factories, homes, cars and
so on.
10. Oil, also called petroleum, is found in many
places throughout the world.
WORLD SUPPLIES OF OIL
13. Open Pit or Strip Mining
Top 10 Coal Producing Countries in the World www.energydigital.com
14. Open pit mining is faster, more efficient
and more devastating to the ecology.
alltoptens.com
15. Modern mining machine
The Beckley Exhibition Coal Mine
chameleonsinpipestem.blogspot.com
No. 9 Coal Mine & Museum – 6 blog.discoverlehighvalley.com
Some coal mines are tunnels
underground.
17. Offshore oil platform
An oil platform, (offshore platform or colloquially oil rig)
is a large structure with facilities to drill wells, to extract
and process oil and natural gas, and to temporarily
store product until it can be brought to shore for refining
and marketing. In many cases, the platform contains
facilities to house the workforce as well.
Depending on the circumstances, the platform may be
fixed to the ocean floor, may consist of an artificial
island, or may float. Remote subsea wells may also be
connected to a platform by flow lines and by umbilical
connections. These subsea solutions may consist of one
or more subsea wells, or of one or more manifold
centers for multiple wells.
18. Workers live on the oil rig three or four
weeks at a time.
Offshore living www.snaphappyross.co.uk
The cafeteria
oil-rig-07www.chinasmack.com
19. Offshore drilling in Belizewww.belizehub.com
Types of ocean oil rigs
curitibainenglish.com
Offshore oil drilling
20. Workers live on the platform for
several weeks, then go home for a
week or two, and come back again to
work.
The nature of their operation —
extraction of volatile substances
sometimes under extreme pressure in a
hostile environment — means risk;
accidents and tragedies occur
regularly. The U.S. Minerals
Management Service reported 69
offshore deaths, 1,349 injuries, and 858
fires and explosions on offshore rigs in
the Gulf of Mexico from 2001 to
2010.[14] In July 1988, 167 people died
when Occidental Petroleum's Piper
Alpha offshore production platform,
on the Piper field in the UK sector of
the North Sea, exploded after a gas
leak.
Working on an offshore oil rig
21. Natural Gas Drilling Is at a
Crucial Turning Point
247wallst.com
Natural Gas
Natural gas is generally found a mile or
more beneath the earth’s surface.
www.momscleanairforce.org
22. Smart Gas Meters Get a Boost in New SoCalGas-
Capgemini Deal www.navigantresearch.com
Natural Gas Exports
rankingamerica.wordpress.com