The document discusses the kinetic molecular theory of gases and the gas laws. It explains that according to the kinetic molecular theory, gas particles are in constant, random, straight-line motion and have no intermolecular forces. The gas laws - Boyle's law, Charles' law, and Gay-Lussac's law - describe the relationships between pressure, volume, temperature for an ideal gas. Boyle's law states that pressure and volume are inversely proportional at constant temperature. Charles' law states that volume and temperature are directly proportional at constant pressure. Gay-Lussac's law states that pressure and temperature are directly proportional at constant volume. Examples are given to demonstrate calculating unknown values using the gas laws and combined gas law.
Kinetic Gas Theory including Ideal Gas Equation. Temperature, Volume, Applications
Boyle's Law, Charles' Law and Avogadro's Law. Ideal Gas Theory, Dalton's Partial Pressure
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
Kinetic Gas Theory including Ideal Gas Equation. Temperature, Volume, Applications
Boyle's Law, Charles' Law and Avogadro's Law. Ideal Gas Theory, Dalton's Partial Pressure
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
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.
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.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
Salas, V. (2024) "John of St. Thomas (Poinsot) on the Science of Sacred Theol...Studia Poinsotiana
I Introduction
II Subalternation and Theology
III Theology and Dogmatic Declarations
IV The Mixed Principles of Theology
V Virtual Revelation: The Unity of Theology
VI Theology as a Natural Science
VII Theology’s Certitude
VIII Conclusion
Notes
Bibliography
All the contents are fully attributable to the author, Doctor Victor Salas. Should you wish to get this text republished, get in touch with the author or the editorial committee of the Studia Poinsotiana. Insofar as possible, we will be happy to broker your contact.
BLOOD AND BLOOD COMPONENT- introduction to blood physiology
Intro to Gases and Gas Laws.ppt
1. EQ:
How do we use the Kinetic
Molecular Theory to explain
the behavior of gases?
Topic #32: Introduction
to Gases
2. States of Matter
2 main factors determine state:
• The forces (inter/intramolecular)
holding particles together
• The kinetic energy present (the
energy an object possesses due to its
motion of the particles)
• KE tends to ‘pull’ particles apart
3. Kinetic Energy , States of Matter &
Temperature
Gases have a higher kinetic energy
because their particles move a lot more
than in a solid or a liquid
As the temperature increases, there gas
particles move faster, and thus kinetic
energy increases.
4. Characteristics of Gases
Gases expand to fill any container.
• random motion, no attraction
Gases are fluids (like liquids).
• no attraction
Gases have very low densities.
• no volume = lots of empty space
5. Characteristics of Gases
Gases can be compressed.
• no volume = lots of empty space
Gases undergo diffusion & effusion
(across a barrier with small holes).
• random motion
6. Kinetic Molecular Theory of ‘Ideal’
Gases
Particles in an ideal gas…
• have no volume.
• have elastic collisions (ie. billiard
ball particles exchange energy with
eachother, but total KE is conserved
• are in constant, random, straight-line
motion.
• don’t attract or repel each other.
• have an avg. KE directly related to
temperature ( temp= motion= KE)
7. Real Gases
Particles in a REAL gas…
• have their own volume
• attract each other (intermolecular
forces)
Gas behavior is most ideal…
• at low pressures
• at high temperatures
Why???
8. Real Gases
At STP, molecules of gas are moving fast and
are very far apart, making their intermolecular
forces and volumes insignificant, so
assumptions of an ideal gas are valid under
normal temp/pressure conditions. BUT…
• at high pressures: gas molecules are
pushed closer together, and their
interactions with each other become more
significant due to volume
• at low temperatures: gas molecules move
slower due to KE and intermolecular
forces are no longer negligible
10. Atmospheric Pressure
The gas molecules in the atmosphere are
pulled toward Earth due to gravity, exerting
pressure
Why do your ears ‘pop’ in an airplane?
12. Units of Pressure
2
m
N
kPa
At Standard Atmospheric Pressure
(SAP)
101.325 kPa (kilopascal)
1 atm (atmosphere)
760 mm Hg
(millimeter Hg)
760 torr
14.7 psi (pounds per square inch)
13. Standard Temperature & Pressure
Standard Temperature & Pressure
0°C 273 K
1 atm 101.325 kPa
-OR-
STP
14. Temperature: The Kelvin Scale
ºC
K
-273 0 100
0 273 373
273
K
C K = ºC + 273
Always use absolute temperature
(Kelvin) when working with gases.
15. Kelvin and Absolute Zero
Scottish physicist Lord Kelvin
suggested that -273oC (0K) was the
temperature at which the motion
particles within a gas approaches
zero.. And thus, so does volume)
Absolute Zero:
http://www.youtube.com/watch?v=JHXxPnmyDbk
Comparing the Celsius and Kelvin Scale:
http://www.youtube.com/watch?v=-G9FdNqUVBQ
16. Why Use the Kelvin Scale?
Not everything freezes at 0oC, but
for ALL substances, motion stops
at 0K.
It eliminates the use of negative
values for temperature! Makes
mathematic calculations possible
(to calculate the temp. twice
warmer than -5oC we can’t use 2x(-
5oC) because we would get -10oC!)
18. Converting between Kelvin and Celsius
a) 0oC =_____K
b) 100oC= _____K
c) 25oC =______K
d) -12oC = ______K
e) -273K = ______oC
f) 23.5K = ______oC
g) 373.2K= ______oC
273
K
C K = ºC + 273
19. Learning Goal:
I will be able to understand
what kinetic energy is and
how it relates to gases and
temperature, describe the
properties of a real and ideal
gas and understand what
Absolute Zero is and how to
convert between the Kelvin
and Celsius temperature
scales.
How Did We Do So Far?
20. Part B: The Gas Laws
Part B:
Learning Goals
I will be able to describe
Boyle’s, Charles’ and
Gay-Lussac’s Laws
relating T, P and/or V
and be able to calculate
unknown values using
the equations derived
from these laws, as well
as the combined gas
law.
21. 1. Intro to Boyle’s Law
Imagine that you hold the tip of a
syringe on the tip of your finger so
no gas can escape. Now push
down on the plunger of the syringe.
What happens to the volume in the
syringe?
What happens to the pressure the
gas is exerting in the syringe?
23. 1. Boyle’s Law
The pressure and volume of a gas
are inversely proportional (as one
increases, the other decreases,
and vice versa
• at constant mass & temp
P
V
24. 1. Boyle’s Law
Boyle’s Law leads to the mathematical
expression: *Assuming temp is constant
P1V1=P2V2
Where P1 represents the initial pressure
V1 represents the initial volume,
And P2 represents the final pressure
V2 represents the final volume
25. Example Problem:
A weather balloon with a volume of 2000L at a pressure of 96.3
kPa rises to an altitude of 1000m, where the atmospheric pressure
is measured to be 60.8kPa. Assuming there is no change in the
temperature or the amount of gas, calculate the weather balloon’s
final volume.
26. You Try:
Atmospheric pressure on the peak of Kilimanjaro can be as low as
0.20 atm. If the volume of an oxygen tank is 10.0L, at what
pressure must the tank be filled so the gas inside would occupy a
volume of 1.2 x 103L at this pressure?
27. 2. Intro to Charles’ Law
Imagine that you put a
balloon filled with gas in
liquid nitrogen
What is happening to the
temperature of the gas in
the balloon?
What will happen to the
volume of the balloon?
29. V
T
2. Charles’ Law
The volume and absolute
temperature (K) of a gas
are directly proportional (an
increase in temp leads to an
increase in volume)
• at constant mass &
pressure
31. 2. Charles’ Law
Charles’ Law leads to the
mathematical expression:
*Assuming pressure remains constant
32. Example Problem:
A birthday balloon is filled to a volume of 1.5L of helium gas in an
air-conditioned room at 293K. The balloon is taken outdoors on a
warm day where the volume expands to 1.55L. Assuming the
pressure and the amount of gas remain constant, what is the air
temperature outside in Celsius?
33. You Try:
A beach ball is inflated to a volume of 25L of air at 15oC. During
the afternoon, the volume increases by 1L. What is the new
temperature outside?
34. 3. Intro to Gay-Lussac’s Law
Imagine you have a balloon
inside a container that ensures
it has a fixed volume. You heat
the balloon.
What is happening to the temp of
the gas inside the balloon?
What will happen to the pressure
the gas is exerting on the
balloon?
35. P
T
3. Gay-Lussac’s Law
The pressure and absolute
temperature (K) of a gas
are directly proportional (as
temperature rises, so does
pressure)
• at constant mass &
volume
36. 2. Gay-Lussac’s Law
Gay-Lussac’s Law leads to the
mathematical expression:
*Assuming volume remains constant
Egg in a bottle to show Gay-Lussac's Law:
T & P relationship:
http://www.youtube.com/watch?v=r_JnUBk1JPQ
37. Example Problem:
The pressure of the oxygen gas inside a canister with a fixed
volume is 5.0atm at 15oC. What is the pressure of the oxygen gas
inside the canister if the temperature changes to 263K? Assume
the amount of gas remains constant.
38. You Try:
The pressure of a gas in a sealed canister is 350.0kPa at a room
temperature of 15oC. The canister is placed in a refrigerator that
drops the temperature of the gas by 20K. What is the new
pressure in the canister?
39. 4. Combined Gas Law
P1V1
T1
=
P2V2
T2
By combining Boyle’s, Charles’ and Gay
Lussac’s Laws, the following equation is
derived:
41. Any Combination Questions
a) A gas occupies 473 cm3 at 36°C. Find its volume at 94°C
b) A gas’ pressure is 765 torr at 23°C. At what temperature will the
pressure be 560. torr
42. How Did You Do?
Part B:
Learning Goals
I will be able to describe
Boyle’s, Charles’ and
Gay-Lussac’s Laws
relating T, P and/or V
and be able to calculate
unknown values using
the equations derived
from these laws, as well
as the combined gas
law.