Ukrainian nuclear physicists are scientists and researchers in Ukraine who specialize in the field of nuclear physics, which involves the study of atomic nuclei, their components (such as protons and neutrons), their interactions, and the associated forces. This field encompasses various areas, including nuclear energy, nuclear reactions, nuclear medicine, and the study of fundamental particles. Ukraine has a rich history in nuclear research and education, particularly since the Soviet era.
Ukrainian women physicists have made significant contributions to the field of physics and science in general, often overcoming challenges in a traditionally male-dominated profession. Their work spans various areas of physics, including theoretical physics, experimental physics, and applied physics. Some notable Ukrainian women physicists include: 1. **Natalia Yakovleva** - An accomplished physicist known for her work in solid-state physics and nanotechnology. 2. **Yuliya S.
An outline of recreational dive sites typically includes various elements and categories that help divers identify and choose locations for diving. Here’s a structured outline that can be used to present information on recreational dive sites: ### Outline of Recreational Dive Sites #### I. Introduction A. Definition of Recreational Dive Sites B. Importance of Dive Sites in the Diving Community C. Overview of Types of Dive Sites #### II. Types of Dive Sites A.
A Submarine Escape Training Facility (SETF) is a specialized facility designed to train submariners in the procedures and techniques necessary for escaping from a submarine in the event of an emergency. These facilities typically simulate a range of underwater conditions that a submarine might encounter, allowing personnel to practice escape protocols safely. Key components of a Submarine Escape Training Facility often include: 1. **Escape Training Tower**: A vertical shaft that simulates the escape hatch of a submarine.
The cerebroplacental ratio (CPR) is an important measurement used in obstetrics to assess fetal well-being, particularly in the context of growth-restricted fetuses. It is calculated by comparing the blood flow in the middle cerebral artery (MCA) to the blood flow in the umbilical artery (UA). Typically, ultrasound Doppler studies are used to measure the pulsatility index or velocity of blood flow in these arteries.
Functional ultrasound imaging, often referred to as functional ultrasound or fUS, is a non-invasive imaging technique used to assess and visualize physiological processes within the body in real-time. Unlike traditional ultrasound, which primarily focuses on anatomical structures, functional ultrasound provides insights into the functionality of tissues and organs by monitoring their physiological activity. Key features of functional ultrasound imaging: 1. **Real-time Monitoring**: It allows for real-time assessment of blood flow, tissue movement, and other dynamic physiological processes.
Haifu by Wikipedia Bot 0
Haifu, also known as High-Intensity Focused Ultrasound (HIFU), is a medical technology that uses focused ultrasound waves to provide localized therapeutic effects on tissue without damaging surrounding structures. It is commonly used in various medical applications, including: 1. **Cancer Treatment**: HIFU can be used to target and destroy tumor cells in specific areas of the body, such as the prostate, liver, and kidney.
Hystero-contrast sonography (HCS), also known as saline infusion sonography (SIS) or sonohysterography, is a medical imaging technique used primarily to evaluate the interior of the uterus. It combines transvaginal ultrasound with the infusion of a sterile liquid contrast medium (usually saline) into the uterine cavity.
Modulated ultrasound refers to the technique of varying the amplitude, frequency, or phase of ultrasound waves to convey information or enhance specific characteristics of the ultrasound signal. This modulation can serve various purposes across different fields, including medical imaging, therapeutic applications, and industrial testing. ### Key Aspects of Modulated Ultrasound: 1. **Medical Imaging**: In medical applications, modulated ultrasound can enhance the contrast and resolution of images.
Neuromuscular ultrasound is a diagnostic imaging technique used to visualize and assess the peripheral nervous system and associated muscles. It involves the use of high-frequency sound waves, which are transmitted through a probe applied to the skin. The returning echoes are processed to create detailed images of nerves, muscles, tendons, and surrounding structures.
PMUT by Wikipedia Bot 0
PMUT stands for Piezoelectric Microelectromechanical Systems Ultrasonic Transducer. It is a type of transducer that converts electrical signals into ultrasonic waves (and vice versa) using piezoelectric materials. PMUTs are typically used in various applications, including medical imaging, non-destructive testing, and ultrasonic cleaning, as well as in consumer electronics such as proximity sensors and gesture recognition systems.
Transcranial pulsed ultrasound (TPU) is a non-invasive medical imaging and therapeutic technique that uses focused ultrasound waves to penetrate the skull and target specific areas of the brain. This method can be utilized for various applications, including: 1. **Imaging**: TPU can produce images of brain structures and help visualize abnormal conditions, such as tumors or other brain pathologies. It provides real-time images and can help in both diagnosis and guidance for further interventions.
Ultrasonic horn by Wikipedia Bot 0
An ultrasonic horn, also known as a sonotrode, is a device used to concentrate and amplify ultrasonic waves, typically for applications such as ultrasonic welding, cutting, cleaning, or mixing. It generally consists of a transducer that converts electrical energy into mechanical vibrations, typically in the ultrasonic range (above 20 kHz). This mechanical vibration is then transmitted to the horn, which is designed to amplify the amplitude of the vibrations.
An ultrasonic transducer is a device that converts electrical energy into ultrasonic waves (high-frequency sound waves typically above 20 kHz) and vice versa. These transducers are employed in a variety of applications, including medical imaging (like ultrasound), industrial non-destructive testing, cleaning, and distance measurement. ### Key Components: 1. **Piezoelectric Material**: Most ultrasonic transducers utilize piezoelectric materials, which generate an electric charge in response to mechanical stress.
Ultrasound-switchable fluorescence imaging is an advanced imaging technique that combines ultrasonography and fluorescence microscopy to enhance imaging capabilities in various biological and medical applications. This method exploits the unique properties of ultrasound waves to modulate or switch on/off fluorescence signals from specific markers or probes within tissues. ### Key Concepts: 1. **Fluorescence Imaging**: This involves the use of fluorescent dyes or proteins that emit light upon excitation.
In mathematics, "parity" refers to the property of an integer's evenness or oddness. Specifically, an integer is said to be **even** if it is divisible by 2 (i.e., it can be expressed in the form \(2k\) where \(k\) is an integer), and it is **odd** if it is not divisible by 2 (i.e., it can be expressed in the form \(2k + 1\)).
Increment and decrement operators are unary operators used in programming to increase or decrease the value of a variable by one, respectively. They are commonly found in languages like C, C++, Java, and JavaScript. Here's a breakdown of their functionality: ### Increment Operator (`++`) The increment operator increases the value of a variable by one.
Inverse function by Wikipedia Bot 0
An inverse function is a function that reverses the action of the original function. If you have a function \( f(x) \), the inverse function, denoted as \( f^{-1}(x) \), will take the output of \( f \) and return the original input.
Negation by Wikipedia Bot 0
Negation is a linguistic and logical concept that involves the denial or contradiction of a proposition or statement. In simpler terms, it refers to the process of stating that something is not the case or that a particular assertion is false. In language, negation is often expressed using words such as "not," "no," "never," and "nothing." For example: - The statement "It is raining" can be negated to "It is not raining.
Sign function by Wikipedia Bot 0
The sign function, often denoted as \( \text{sgn}(x) \), is a mathematical function that extracts the sign of a given real number \( x \).

Pinned article: ourbigbook/introduction-to-the-ourbigbook-project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 5. . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact