1) Sound travels faster through solids than liquids or gases, and the speed depends on the temperature of the medium. The speed of sound in air is around 343 m/s.
2) The pitch of a sound depends on its frequency, which is measured in Hertz. Higher frequencies mean a higher pitch. Humans can only hear sounds within a certain frequency range.
3) The Doppler effect causes changes in the perceived pitch of a sound source depending on whether the source is moving towards or away from the listener. This explains why an ambulance siren sounds higher in pitch as it approaches.
this is a notes of sound for class 8 students. this will help you to revise the chapter very quickly. recap is also included in this.
with the help of pictures you will be able to understand it quickly.
I made this presentation to support a hearing impaired student in my class. The idea is to talk about what sound is, how we hear and about hearing impairments.
Sound by gaurav Sound by gaurav Sound by gaurav ghankhedeSound by Sound by gaurav Sound by gaurav ghankhede Sound by gaurav Sound by gaurav Sound by gaurav ghankhedeSound by gaurav ghankhede
The following power point presentation discusses about sound, how its produced and how the sound travels. We also discuss how we are able to listen using our ears. Thereafter we discuss in brief about the properties of sound, We also discuss about various musical instruments. Lastly we discuss about noise pollution and how we can control it
In a world filled with constant noise and commotion, the simple act of giving your ears a rest can feel like a luxury. The soundscape around us has become increasingly cluttered with the clamor of technology, urban living, and the demands of modern life. But have you ever stopped to consider the impact that this unending auditory assault has on your well-being?
"Give Your Ears a Rest" is more than just an ebook – it's an invitation to rediscover the beauty of silence and the power of intentional listening. In the pages that follow, we will explore the fascinating world of sound, delve into the science of hearing, and uncover the ways in which noise affects us on a physical, emotional, and psychological level.
From the soothing rustle of leaves in a forest to the rhythmic lapping of waves on a serene shoreline, the symphony of nature has long been our ultimate source of comfort. Yet, in the pursuit of progress, we've inadvertently distanced ourselves from the very tranquility that nurtures our minds and bodies. It's time to reclaim that connection and give our ears the respite they deserve.
Join us as we embark on a journey to understand the anatomy of hearing, unravel the mysteries of noise pollution, and discover how mindfulness can transform the way we perceive the world around us. Learn practical techniques to create pockets of quiet in your daily life, shield your ears from harm, and tap into the therapeutic benefits of sound.
In a world that bombards us with sound, this ebook serves as a guide to cultivating moments of silence and reclaiming the lost art of listening. So, turn the page and let's begin this transformative exploration into the realms of sound, stillness, and self-discovery.
this is a notes of sound for class 8 students. this will help you to revise the chapter very quickly. recap is also included in this.
with the help of pictures you will be able to understand it quickly.
I made this presentation to support a hearing impaired student in my class. The idea is to talk about what sound is, how we hear and about hearing impairments.
Sound by gaurav Sound by gaurav Sound by gaurav ghankhedeSound by Sound by gaurav Sound by gaurav ghankhede Sound by gaurav Sound by gaurav Sound by gaurav ghankhedeSound by gaurav ghankhede
The following power point presentation discusses about sound, how its produced and how the sound travels. We also discuss how we are able to listen using our ears. Thereafter we discuss in brief about the properties of sound, We also discuss about various musical instruments. Lastly we discuss about noise pollution and how we can control it
In a world filled with constant noise and commotion, the simple act of giving your ears a rest can feel like a luxury. The soundscape around us has become increasingly cluttered with the clamor of technology, urban living, and the demands of modern life. But have you ever stopped to consider the impact that this unending auditory assault has on your well-being?
"Give Your Ears a Rest" is more than just an ebook – it's an invitation to rediscover the beauty of silence and the power of intentional listening. In the pages that follow, we will explore the fascinating world of sound, delve into the science of hearing, and uncover the ways in which noise affects us on a physical, emotional, and psychological level.
From the soothing rustle of leaves in a forest to the rhythmic lapping of waves on a serene shoreline, the symphony of nature has long been our ultimate source of comfort. Yet, in the pursuit of progress, we've inadvertently distanced ourselves from the very tranquility that nurtures our minds and bodies. It's time to reclaim that connection and give our ears the respite they deserve.
Join us as we embark on a journey to understand the anatomy of hearing, unravel the mysteries of noise pollution, and discover how mindfulness can transform the way we perceive the world around us. Learn practical techniques to create pockets of quiet in your daily life, shield your ears from harm, and tap into the therapeutic benefits of sound.
In a world that bombards us with sound, this ebook serves as a guide to cultivating moments of silence and reclaiming the lost art of listening. So, turn the page and let's begin this transformative exploration into the realms of sound, stillness, and self-discovery.
Similar to Interactive Textbook Ch. 21 The Nature of Sound (20)
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.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
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(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.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.