Interpretant
In semiotics, the study of signs and symbols and their use or interpretation, an "interpretant" is one of the three components of a sign, alongside the "signifier" (the form that the sign takes) and the "object" (the thing to which the sign refers). The concept of the interpretant was notably developed by the American philosopher Charles Sanders Peirce. The interpretant is essentially the understanding or meaning that is derived from a sign by an interpreter.
Isotopy (semiotics)
Isotopy in semiotics refers to the recurrence of a particular meaning or conceptual theme through different signs or expressions within a text or discourse. It is a way to identify and analyze the underlying coherence and consistency of meaning that spans various elements in a communicative context. The term "isotopy" was notably discussed by the semiotician Algirdas Julien Greimas, who used it to explore how certain themes or motifs can unify a narrative or text by appearing in different forms or representations.
BI-RADS
BI-RADS, or the Breast Imaging Reporting and Data System, is a standardized classification system developed by the American College of Radiology (ACR) to help radiologists categorize breast imaging findings. Its primary purpose is to promote consistent reporting and facilitate communication between healthcare providers, patients, and other stakeholders regarding breast imaging results, particularly in mammography, breast ultrasound, and breast MRI.
Phantom structure
The term "Phantom structure" can refer to different concepts depending on the context in which it is used. Here are a few areas where the term might apply: 1. **Architecture and Design**: In some architectural discussions, "phantom structures" refer to designs or structures that appear to have a presence or significance but do not actually exist in a physical form. This can be a conceptual tool for discussing the impact of visibility, presence, or absence in design.
Phase space measurement with forward modeling is a concept often used in scientific fields such as physics, engineering, and data science, particularly in analyzing dynamic systems. To understand this concept, it helps to break down the components involved: ### Phase Space 1. **Phase Space**: - In physics, particularly in the context of dynamical systems, phase space is a multidimensional space wherein each possible state of a system is represented as a point.
Photoactivated localization microscopy (PALM) is a super-resolution imaging technique used in fluorescence microscopy to achieve spatial resolution beyond the diffraction limit of light. This technique is particularly important for visualizing cellular structures and protein interactions at the nanometer scale. Here's how it works: 1. **Photoactivation**: In PALM, a population of fluorescent molecules is initially in a dark or non-fluorescent state.
Portable magnetic resonance imaging (MRI) refers to compact, mobile MRI systems designed to provide MRI capabilities outside of traditional hospital settings. These systems aim to make MRI technology more accessible, allowing for imaging in various locations such as clinics, outpatient diagnostic centers, emergency departments, or even in patients' homes. Key features of portable MRI systems typically include: 1. **Size and Weight**: Unlike conventional MRI machines, portable MRIs are smaller and can be moved more easily. This allows for more flexible deployment.
RTI-121
RTI-121 is an investigational drug that has been studied as a potential treatment for certain neurological disorders, particularly related to cognitive impairment and related conditions. It acts as a selective modulator of the mGluR2 receptor, which is part of the metabotropic glutamate receptor family. Research into RTI-121 has primarily focused on its effects in the context of treating conditions like schizophrenia and other disorders characterized by cognitive deficits.
RTI-229
RTI-229 is an investigational medication related to the treatment of certain neurodegenerative diseases, specifically targeting conditions like Alzheimer's disease. It is a small molecule that is designed to interfere with the aggregation of amyloid-beta peptides, which are believed to play a significant role in the pathogenesis of Alzheimer’s disease. By potentially preventing or reducing this aggregation, RTI-229 may help alleviate some of the cognitive decline associated with Alzheimer's.
RTI-51
RTI-51 is a designation that can refer to various things depending on the context, but it is primarily associated with specific research and development projects or materials in scientific, industrial, or technological fields. Without further context, it's difficult to pinpoint a specific definition. It could involve an identifier for a research initiative, a type of technology, or an experimental program.
RTI-55
RTI-55, also known as RTI-55-356, is a synthetic cannabinoid that is part of a class of compounds designed to mimic the effects of tetrahydrocannabinol (THC), the main psychoactive component of cannabis. These synthetic cannabinoids are often used in research and sometimes found in illicit drug markets labeled as "spice" or "K2.
New Criticism
New Criticism is a literary theory and approach to reading and interpreting texts that emerged in the early to mid-20th century, primarily in the United States. It emphasizes close reading, focusing on the text itself rather than external factors such as the author's intentions, historical context, or biographical details. Key principles of New Criticism include: 1. **Textual Unity**: New Critics believe that a literary work should be analyzed as a self-contained entity.
Depth kymography
Depth kymography is a specialized imaging technique used primarily in the study of the motion dynamics of fluids, particularly in the fields of biology and medicine. It provides a way to capture and analyze the motion of fluid layers over time along a specific axis, often in a continuous manner. The technique combines the principles of kymography, which traditionally involves recording and visualizing motion along a single dimension, with depth imaging to capture variations in motion at different depths within a sample.
Dextrobeam
As of my last update in October 2023, there isn't a widely recognized product, company, or concept specifically named "Dextrobeam." It's possible that it could refer to a new product, a technology, or something else that has emerged after that date or is lesser-known within a specific niche.
Diffuse optical imaging
Diffuse Optical Imaging (DOI) is a non-invasive imaging technique that utilizes near-infrared light to probe tissue and provide information about its composition and physiological state. This method relies on the principles of light scattering and absorption by biological tissues. Here are some key aspects of diffuse optical imaging: 1. **Principle**: DOI takes advantage of the scattering and absorption properties of tissues.
Dual-energy X-ray absorptiometry (DXA or DEXA) is a medical imaging technique primarily used to measure bone mineral density (BMD). It is considered the gold standard for diagnosing osteoporosis and assessing fracture risk. DXA works by using two different energy levels of X-ray beams to scan the body, typically focusing on the lower spine and hip, which are common sites for osteoporotic fractures.
Dual X-ray Absorptiometry (DXA or DEXA) is a medical imaging technique primarily used to measure bone mineral density (BMD). It employs two X-ray beams with different energy levels to assess the amount of bone in a specific area, typically the spine, hip, or wrist. DXA is widely regarded as a standard method for diagnosing osteoporosis and determining fracture risk, as well as for monitoring bone density changes over time, especially in patients undergoing treatment for bone-related conditions.
Endomicroscopy
Endomicroscopy is a cutting-edge imaging technique that allows clinicians to visualize tissues at a microscopic level during endoscopic procedures. It combines standard endoscopy with advanced imaging technologies to provide real-time, high-resolution images of epithelial structures and tissues from within the gastrointestinal tract and other organs. There are different types of endomicroscopy, including: 1. **Confocal Endomicroscopy**: This involves a special probe that can be inserted through an endoscope to obtain high-resolution images.
FUJIFILM VisualSonics
FUJIFILM VisualSonics is a division of FUJIFILM that specializes in high-resolution ultrasound imaging technology, primarily for preclinical research and biomedical applications. They develop state-of-the-art ultrasound systems that are used in various fields, including cardiovascular, oncology, and neurological research.
Medical data sets
Medical datasets are collections of health-related data used for various purposes in research, clinical practice, and healthcare management. These datasets can include information from various sources, such as hospitals, laboratories, clinical trials, and electronic health records (EHRs). Medical datasets can be used for different applications, including but not limited to: 1. **Clinical Research**: Researchers use medical datasets to study diseases, treatments, and patient outcomes. This includes observational studies, clinical trials, and epidemiological studies.