"Photolog" Pronounce,Meaning And Examples
"Photolog" Natural Recordings by Native Speakers
"Photolog" Meaning
Photolog is a noun that refers to:A log or diary of photographs, typically taken in a specific order or in a particular situation, to document or record events, activities, or things.In photography, a photolog is a record of photographs made during a project, journey, or period of time. It can be a personal or professional record, used to document specific themes, events, or experiences.For example, a travel photolog is a collection of photographs taken during a trip, while a personal photolog might be a collection of photos documenting a person's daily or weekly life.
"Photolog" Examples
5 usage examples of "photolog": A daily photolog was kept by a group of travelers to document their journey across the Sahara Desert. Her photolog of the wedding was filled with pictures of the bride's beautiful floral arrangements and the dashing groom's stylish tuxedo. We were able to create a collaborative photolog of our school trip by posting our photos online and tagging each other. The street artist's detailed photolog of her creative process and artistic inspirations was featured on her website. As a teacher, she kept a pedagogical photolog to track the progress of her students and plan future lessons accordingly.
"Photolog" Similar Words
Photoinduced
"Photoinduced" refers to a change or reaction that is triggered or initiated by light. It describes a process or phenomenon in which the absorption of light leads to an energy transfer or reaction in a system, often resulting in a change in its chemical, physical, or behavioral properties. This can occur in a variety of contexts, such as photochemistry, photobiology, or photophysics.
Photoinitiator
A photoinitiator is a compound that, when exposed to light of a particular wavelength, undergoes a chemical reaction or change that triggers a larger chemical reaction in a system. It is commonly used to initiate polymerization in photopolymerization, where it is illuminated by ultraviolet (UV) light or visible light to initiate the curing of inks, adhesives, resins, or other materials.Photoinitiators are usually substances that contain a tertiary amino group (-N-) or an acetone group (-CO-), which are sensitive to UV light and undergo a transition from the ground state to the excited state when excited by UV radiation. This transition is followed by a reaction that activates the photoinitiator, which then initiates a chain reaction of polymerization, curing, or cross-linking of the surrounding material.Common examples of photoinitiators include benzoin ethers, acylphosphine oxides, and amino ketones. They are widely used in various applications such as:1. Dental materials: to create dental composites and resins2. Adhesives: to cure adhesives for bonding materials3. Inks and coatings: to cure inks and coatings for printing and painting4. 3D printing: to cure photopolymers for 3D printing5. Fiber optics: to cure optical fibers and coatings.
Photoirritant
A photoirritant is a chemical that, when excited by ultraviolet (UV) radiation, is highly reactive and can cause skin irritation or allergic reactions. This means that when exposed to sunlight or artificial sources of UV radiation, the chemical reacts and becomes a skin irritant, potentially causing redness, itching, or other uncomfortable symptoms.
Photojournalism
Photojournalism is the practice of using photographs to tell news stories and convey information to the public. It involves the use of photographs to illustrate news articles, assign meaning and context to events, and provide a visual record of historical events.Photojournalism often shares similarities with documentary photography and uses techniques such as observational, intuitive, and interpretative approaches to capture news stories. It can be found in professional news sources, such as newspapers, magazines, and websites, as well as in other forms of media like video and social platforms.The primary goals of photojournalism are to record truthfully and responsibly: archival of news stories, humanizing an issue, voicing perspectives and emotions, and fostering empathy and dialogue, all while adhering to high ethical standards.Through photojournalism, photographers aim to inform people about current events and cultural issues, raising awareness, promoting understanding, engaging people in discussions, and inspiring critical thinking and action.
Photojournalist
A photojournalist is a journalist who uses photographs to tell a story or convey a message. They are professional photographers who work in a journalistic capacity, often in newsrooms, to capture and edit images that accompany news articles or editorial content. The goal of a photojournalist is to use their photographs to convey the essence of a story, evoke emotions, or raise awareness about an issue, through their visual storytelling.
Photokinesis
Photokinesis is the supposed ability to move physical objects or change their trajectory with one's mind, using only light or other forms of electromagnetic radiation.
Photolithographic
Photolithographic refers to a method used in engineering, photography, and electronics, particularly in the fabrication of integrated circuits. The phrase is also spelled photolitographic or photolithography. It involves the transfer of a pattern onto a light-sensitive material (photosensitive resist material) using ultraviolet (UV) light. This process is essential in the production of microchips and other complex electronic components.
Photolithography
A technique used in the production of integrated circuits and flat panel displays. It involves transferring an image formed by light exposure onto a layer of photoresist on a substrate, typically silicon, creating a pattern of areas that are either exposed or protected from subsequent processing steps.
Photoluminescence
Photoluminescence is a type of luminescence that occurs when a substance absorbs light and then re-emits it, often with a different wavelength. This process typically involves the excitation of electrons from a lower energy state to a higher energy state, followed by their relaxation to a lower energy state, releasing energy in the form of light.Photoluminescence can be produced by a wide range of materials, including liquids, gases, and solids, and can occur over a range of time scales, from very short times (e.g. fluorescence) to much longer times (e.g. phosphorescence).
Photoluminescent
Capable of producing light in response to light or radiation, typically re-emitting a part of the absorbed radiation as light.
Photolyase
Photolyase is an enzyme that repairs DNA damage caused by ultraviolet (UV) light. It recognizes and corrects thymine dimers, which are types of DNA lesions that occur when two adjacent thymine nucleotides are linked together, forming a covalent bond between them. This type of damage is particularly problematic because it can prevent the proper separation of DNA strands during replication, which can lead to mutations and cancer.Photolyase is an enzyme that contains a flavin group, a prosthetic group that absorbs light in the visible region of the electromagnetic spectrum, or in the blue/ultraviolet region, to catalyze the formation of keto-enol tautomers of the dimer pyrimidine pair to separate the UV fundamentals of thymine dimers. This process does not require energy, a process known as light-independent inorganic chemistry.In cells, photolyase is often found in organisms that are exposed to high levels of UV light, such as plants in sunny regions. It is used in the repair of DNA damage caused by UV light damage. Photolyase is particularly prevalent in plants, where it is often referred to as photolyase.(1)
Photolyases
Photolyases are a class of enzymes that catalyze the light-dependent repair of DNA damage, specifically the removal of cyclobutane pyrimidine dimers (CPDs) and (6-4) photoproducts (6-4PPs) induced by ultraviolet (UV) irradiation. These enzymes are found in bacteria, archaea, and some eukaryotes, and play a crucial role in protecting genomic integrity in response to UV-B radiation.There are several types of photolyases, including:<em> CPD photolyases, which repair CPDs by using visible blue light to activate a catalytic cofactor called FAD (flavin adenine dinucleotide) and split the dimer, releasing the unmodified pyrimidine bases.</em> (6-4) photolyases, which repair 6-4 PP by using visible blue light to cleave the cyclobutane ring and lose one pyrimidine base. DNA photolyase-like enzymes, which have a similar structure and activity to photolyases but lack the ability to split the CPD or 6-4PP.Photolyases work by absorbing light energy and using it to catalyze the repair of DNA damage. This process is essential for preventing mutations and maintaining genomic stability in organisms that are exposed to UV light.
Photolysis
Photolysis is the chemical decomposition of a molecule by made possible by light. It is a chemical reaction that occurs when a substance absorbs energy from light, causing the bonds between its atoms to break, resulting in the formation of new compounds. This process is commonly observed in molecules that absorb ultraviolet (UV) radiation, visible light, or other forms of electromagnetic radiation.
Photolytic
Breaking down a substance using light, especially ultraviolet radiation, often resulting in the formation of chemical bonds and the release of energy.
Photometer
A photometer is an electronic device used to measure the intensity of light or radiant energy. It is an instrument that compares the luminous intensity of different light sources, or measures the light intensity at a specific point in space. Photometers are commonly used in a variety of fields, including:1. Lighting design: To evaluate the amount of light emitted by different lighting fixtures or sources.2. Optics: To measure the intensity of light from lasers, LEDs, or other optical sources.3. Astronomy: To measure the brightness of celestial objects, such as stars or planets.4. Photography: To determine the exposure time required for a photograph.There are several types of photometers, including:1. Spectral photometers: Measure the intensity of light across a range of wavelengths.2. Broadband photometers: Measure the intensity of light over a broad spectrum, typically in the visible or near-infrared range.3. Quantum photometers: Measure the number of photons (quantum particles) emitted by a source.4. Radiometers: Measure the radiant energy (factors that emit light, such as heat or plasma).Overall, photometers play a crucial role in various scientific and technical applications where precise measurement of light intensity is essential.