Solute concentration is the amount of a solute dissolved in a solvent, measured by weight, volume, or molecular mass. Different methods are used depending on the needs, such as weight percent blend, weight per volume, percent by volume, and molar concentration. Molar concentration is often used in laboratories to accurately determine the amount of material […]
Certified home health aides provide personal care for the elderly, disabled, or recovering patients in their homes. They assist with daily activities, light housework, and basic medical support. Certification is voluntary in the US, but some states require licensing. The job is physical and may involve heavy lifting and dealing with irritable behavior. Advancement opportunities […]
Defining life is difficult as definitions are either too broad or too specific. The most common definition requires meeting seven criteria: growth, stimulus response, metabolism, homeostasis, reproduction, mutation, and autonomous movement. Archaea, animals, plants, fungi, and bacteria meet these criteria, but viruses and prions do not. Specific criteria may cause classification problems if life is […]
A distributed operating system distributes tasks across multiple servers, providing better performance and availability. Examples include UNIX, Linux, and Windows. Grid computing is an example of distributed computing. Algorithms are used to manage tasks, with more advanced algorithms providing better performance. A computer operating system (OS) is one of the most important aspects of a […]
Vertical transmission of disease from mother to infant during perinatal period can occur through placental transmission, exposure to bodily fluids during labor, and breast milk. HIV, hepatitis C, and toxoplasmosis are examples of vertically transmitted diseases. Precautions and tests during pregnancy can reduce risks, and a C-section may be recommended in some cases. Mothers can […]
A medical-surgical nurse assists with surgeries and performs pre-operative duties, monitors vital signs, and provides post-operative care. They require exceptional surgical care skills, good communication, stamina, and ongoing education. To become one, a registered nurse must complete additional training and certification. A medical-surgical nurse is a registered nurse who has successfully completed ancillary training and […]
A cantilever is a beam supported at one end, used in architecture and engineering. It can be made of wood, concrete, or metal, and is used for balconies, overhangs, and temporary structures. Cantilever design can be practical and aesthetic, and is used in many modern engineering projects. A cantilever is a beam that is supported […]
A model release is a legal document signed by a model and photographer that outlines the terms of their relationship, including payment and usage restrictions. It can also cover underage models and may be tailored to different shooting situations. It should address federal, state, and local laws. A model release is a type of liability […]
Transportation attorneys specialize in real estate law, helping buyers and sellers with legal aspects of property ownership transfer and resolving disputes. They also protect clients from fraudulent transfers, negotiate contracts, and ensure compliance with local zoning laws. A transportation attorney, or an estate attorney, is an expert in real estate law. They help buyers and […]
Mechanical project engineers design mechanical systems or products using science and math principles. They work in various industries, including automotive, aerospace, and construction. A bachelor’s degree in mechanical engineering is required, and a professional license may be obtained after gaining experience and passing a written test. A mechanical project engineer is an individual who uses […]
The absorption coefficient affects the speed and permeability of energy passing through materials. Beer-Lambert’s law defines transparency and opacity, while different materials have varying absorption levels. Sound also has resonance and scattering properties. Different materials have different absorption capabilities, with radio waves easily passing through some materials and metal preventing penetration. Light is affected by […]
International criminal law deals with serious crimes such as war crimes, crimes against humanity and genocide. Tribunals are established to deal with specific issues, often headed by the United Nations. The Nuremberg Trials and the Rwandan genocide are examples of international criminal tribunals. International criminal law is used in cases such as war crimes, crimes […]
An automobile bill of sale is a legal contract that transfers ownership rights from one person to another. It includes the names of the parties, car description, terms of agreement, and VIN. The transfer can be conditional or absolute, and tax implications may apply. The deed of sale of an automobile transfers ownership rights to […]
Engineering project reports are detailed reports used by project engineers to update their companies on projects. They are taught in introductory engineering courses and usually required for project completion. The report format varies but typically includes a title page, abstract, executive summary, table of contents, technical information, and conclusion. They are important resources for engineers […]
Insurance jurisprudence is the interpretation and application of insurance laws by courts in common law jurisdictions. It is based on both statutory law and case law, which provides guidance for insurance attorneys in litigation. Case law is built on precedents and lawyers often search for similar cases to support their arguments. Legal researchers use keywords […]
A concentration cell has two sections with different concentrations connected by a component. When activated, the concentrations equalize, generating a voltage that can be measured using a voltmeter and the Nernst equation. Corrosion can occur due to metal ions, oxygen concentration, and contact with other materials. Concentration cells can be used to measure soil acidity […]
Transportation engineering focuses on making the movement of people and goods easy, convenient, predictable, and environmentally friendly. It includes subsets such as aerospace, waterway, aviation, urban transportation, and highway engineering. The pre-planning phase is crucial, and road and airport engineering are important subdisciplines. Transportation engineers follow a set of procedures for each project, involving planning, […]
Coastal engineering combines oceanography and engineering to solve structural and environmental problems along coasts. It involves understanding wave activity, erosion, and navigation to protect coastlines and create artificial harbors. Environmental issues and property values are also considered. Coastal engineering has been practiced for thousands of years. Coastal engineering addresses structural and environmental engineering problems along […]
An affidavit of support is a legal statement used in immigration applications to demonstrate that an immigrant has enough support to survive without government assistance. It is completed by a citizen of the country seeking to immigrate and can include documentation of financial and emotional support. It is recommended to use an immigration attorney to […]
Process plant design involves planning and designing physical or chemical transformations of materials. Data is collected from pilot plants and other sources to ensure feasibility and constraints are considered. Engineers use computer simulations to analyze parameters for safe and efficient operation. Process plant design involves planning various processes required to accomplish a physical or chemical […]
