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Articles on Trending Technologies
Technical articles with clear explanations and examples
Centralized vs. Decentralized Contracting in Project Procurement Management
Procurement is such a crucial part of project management that sometimes there is an additional procurement manager for the project based on the size, complexity, and cost of the project. Procurement involves the processes and activities required to acquire goods and services from outside the organization to support project delivery. The core part of procurement management is contracting which is the creation of a legally binding agreement between the buyer and the seller. There are two main approaches to contracting - centralized and decentralized. In centralized contracting, all procurement activities are handled by a central procurement department or a ...
Read MoreReceptor Mediated Endocytosis or Clathrin Mediated Endocytosis
Introduction Receptor Mediated Endocytosis (RME) is a highly selective process that enables cells to internalize specific molecules, such as hormones, growth factors, and nutrients, by binding to specific cell-surface receptors. Endocytosis is the process by which cells internalize extracellular material by engulfing it in vesicles that form at the plasma membrane. This process is critical for a variety of cellular functions, including nutrient uptake, receptor recycling, and cell signalling. There are several types of endocytosis, including phagocytosis, pinocytosis, and receptor-mediated endocytosis (RME), which is also known as clathrin-mediated endocytosis (CME). In this tutorial, we will discuss the mechanism ...
Read MoreMacrophages - The Professional Phagocytes and their Interaction with Kupffer Cells
Introduction Macrophages and Kupffer cells are both resident macrophages found in the liver, but they have distinct functions and differ in their origins. Macrophages are found throughout the body and can be recruited to the liver during inflammation or infection. The immune system plays a critical role in defending the body against harmful pathogens and foreign substances. Kupffer cells, on the other hand, are specialized macrophages that originate from fetal liver progenitors and are responsible for filtering blood in the liver. Professional phagocytes are immune cells that specialize in recognizing and engulfing foreign particles, such as bacteria, viruses, and ...
Read MorePlatelets and Their Role in Clotting
Introduction Platelets, also known as thrombocytes, are small, colourless, disc-shaped cells that play a crucial role in haemostasis, a process by which bleeding is stopped in injured blood vessels. Platelets are produced in the bone marrow and circulate in the blood until they are needed to form a blood clot. The clotting process involves a complex interplay between platelets, coagulation factors, and blood vessel walls. Platelet Structure and Function Platelets are the smallest of the three types of blood cells, with an average size of 2-3 µm in diameter. They are produced by megakaryocytes in the bone marrow, which ...
Read MoreHow to add controls to an audio in HTML5?
HTML5 is a combination of technologies that the user can use for creating more robust and diverse websites and web apps that support multimedia, and communicate with software interfaces, among other things. In this article, we are going to see how we can add controls to audio in HTML5. Syntax The controls attribute of the tag can be used to specify the controls of the embedded audio. It allows the user to technically embed a music player directly in the webpage. The controls attribute adds functionalities such as play, pause, and volume. ...
Read MoreMegakaryocytes - Development, Function, and Clinical Significance
Introduction Megakaryocytes are large cells found in the bone marrow that are responsible for producing platelets, which are essential for blood clotting. They are named for their large size, with a diameter ranging from 30 to 100 micrometers, and are classified as a type of hematopoietic cell, meaning they originate from stem cells in the bone marrow. Megakaryocytes are large, multinucleated cells that are responsible for producing platelets, which are essential for coagulation of blood. They are unique among bone marrow cells due to their enormous size, and their ability to undergo endomitosis, where they replicate their DNA without cell ...
Read MoreMyelocyte - A Cell of Granulocytic Series
Introduction Blood is a vital component of the human body, transporting oxygen and nutrients throughout the body and removing waste products. It is a complex mixture of different types of cells and plasma, which work together to maintain homeostasis. White blood cells, also known as leukocytes, play a crucial role in the body’s immune system. They help defend the body against infections and other foreign invaders. One of the types of leukocytes is the myelocyte. It is a cell of the granulocytic series and is one of the stages of the maturation of neutrophils. Myelocytes are a critical part ...
Read MoreMechanism and Significance of Memory B Cells
Introduction The human immune system is a complex network of cells and molecules that work together to defend the body against harmful pathogens. One of the key components of the immune system is memory B cells, which are responsible for the long-term immune response to infectious agents. Memory B cells are the vital components of the adaptive immune system, allowing the body to mount a faster and more effective immune response upon exposure to the same pathogen in the future. Mechanism of Memory B cells B cells are a type of white blood cell that are part ...
Read MoreMajor Histocompatibility Complex and MHC Molecules
Introduction The Major Histocompatibility Complex (MHC) is a group of genes located on chromosome 6 in humans that encode for MHC molecules. These molecules are essential for the immune system to identify and respond to foreign invaders such as viruses, bacteria, and other pathogens. The MHC plays a crucial role in determining the compatibility of transplants and is also implicated in a wide range of diseases, including autoimmune disorders and cancer. Below we shall explore the MHC in detail, discussing its structure, function, and importance in immunology. Structure of MHC Molecules The MHC is divided into two classes: ...
Read MoreLife Cycle of Dendritic Cells: Types and Disease
Introduction Dendritic cells (DCs) are a type of immune cell that play a critical role in the immune system. They are responsible for identifying, capturing, processing, and presenting antigens to T cells. DCs are found in most tissues of the body, including lymphoid and non-lymphoid tissues, and are critical for the initiation and regulation of immune responses. This tutorial will explore the life cycle of dendritic cells, their different types, and their role in various diseases. Dendritic Cell Presenting Antigen to T-Cell Life Cycle of Dendritic Cells Dendritic cells are derived from hematopoietic stem cells in the bone marrow. ...
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