Stem cells are cells that can differentiate into many other types of cells and can self-renew to produce more stem cells. There are two main types: embryonic stem cells which are derived from embryos and adult stem cells which are found in specific tissues. Stem cells range in potency from totipotent stem cells found in early embryos, to pluripotent, multipotent, oligopotent and unipotent stem cells with decreasing ability to differentiate into other cell types. Research with stem cells aims to understand development and disease, as well as develop new regenerative therapies. However, stem cell research has also caused controversy regarding the use of human embryos.
A stem cell is a "blank" cell that can give rise to multiple tissue types such as a skin, muscle, or nerve cell.
Under certain physiologic or experimental conditions, they can be induced to become tissue- or organ-specific cells with special functions.
What are stem cells? This presentation provides an overview of multiple different stem cells including embryonic stem cells, mesenchymal stem cells, cancer stem cells, induced pluripotent stem cells, hematopoietic stem cells and neural stem cells.
A stem cell is a "blank" cell that can give rise to multiple tissue types such as a skin, muscle, or nerve cell.
Under certain physiologic or experimental conditions, they can be induced to become tissue- or organ-specific cells with special functions.
What are stem cells? This presentation provides an overview of multiple different stem cells including embryonic stem cells, mesenchymal stem cells, cancer stem cells, induced pluripotent stem cells, hematopoietic stem cells and neural stem cells.
presentation on battles over human embryos and stem cell research ......For any doubts in presentation contact
Gandhi Manikandan
https://www.facebook.com/gandhi.manikandan.39
or email gk.manikandan1996313@gmail.com
My first ppt with so much effort - hope u like it n many are pictures without explanation u can use the link in few slides for additional information
Thank you.
WHAT IS EMBRYONIC STEM CELL?
TYPES OF EMBRYONIC STEM CELL
RECENT RESEARCH OF EMBRYONIC STEM CELL
ADVANTAGES OF EMBRYONIC STEM CELL
LIMITATION OF EMBRYONIC STEM CELL.
history ,definition,type of stem cells , characters of stem cells , source, stem cell banking , indications of stem cell therapy ,applications in gynaecology
presentation on battles over human embryos and stem cell research ......For any doubts in presentation contact
Gandhi Manikandan
https://www.facebook.com/gandhi.manikandan.39
or email gk.manikandan1996313@gmail.com
My first ppt with so much effort - hope u like it n many are pictures without explanation u can use the link in few slides for additional information
Thank you.
WHAT IS EMBRYONIC STEM CELL?
TYPES OF EMBRYONIC STEM CELL
RECENT RESEARCH OF EMBRYONIC STEM CELL
ADVANTAGES OF EMBRYONIC STEM CELL
LIMITATION OF EMBRYONIC STEM CELL.
history ,definition,type of stem cells , characters of stem cells , source, stem cell banking , indications of stem cell therapy ,applications in gynaecology
EXTRACTION AND CLASSIFICATION OF BLEBS IN HUMAN EMBRYONIC STEM CELLdbpublications
A main objective of this paper is
to extract bleb from the human
embryonic stem cells. Blebbing is an
important biological indicator in
determining the health of human
embryonic stem cells (hESC). Especially,
areas of a bleb sequence in a video are
often used to distinguish two cells
blebbing behaviours in HESC; dynamic
and apoptotic blessings. Here analyses
active contour segmentation method for
bleb extraction in hESC videos and
introduces a bio-inspired score function
to improve the performance in bleb
extraction. The full bleb formation
consists of bulb expansion and retraction.
Blebs change their size and image
properties dynamically in both processes
and between frames. Therefore, adaptive
parameters are needed for each
segmentation method. A score function
derived from the change of bleb area and
orientation between consecutive frames with cuckoo optimization is proposed
which provides adaptive parameters for
bleb extraction in videos and classified
using artificial neural networks (ANN).
TISSUE DEVELOPMENT WITH TISSUE ENGINEERING APPROACHFelix Obi
Tissue Engineering is the development and practice of combining scaffolds, cells, and suitable biochemical factors (regulatory factors or Signals) into functional tissues. The goal of tissue engineering is to assemble functional constructs that restore, maintain, or improve damaged tissues or whole organs.
Cells are the building blocks of tissue, and tissues are the basic unit of function in the body. Generally, groups of cells make and secrete their own support structures, called extracellular matrix. This matrix, or scaffold, does more than just support the cells; it also acts as a relay station for various signaling molecules. Thus, cells receive messages from many sources that become available from the local environment. Each signal can start a chain of responses that determine what happens to the cell. By understanding how individual cells respond to signals, interact with their environment, and organize into tissues and organisms, Tissue Engineers are now able to manipulate these processes to amend damaged tissues or even create new ones.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Stem cells are different from other cells of the body because stem cells can both: Self-renew: Make copies of themselves AND 2) Differentiate: Make other types of cells – specialized cells of the body.
An adult stem cell is thought to be an undifferentiated cell, found among differentiated cells in a tissue or organ that can renew itself and can differentiate to yield some or all of the major specialized cell types of the tissue or organ. The primary roles of adult stem cells in a living organism are to maintain and repair the tissue in which they are found. Scientists also use the term somatic stem cell instead of adult stem cell, where somatic refers to cells of the body
Embryonic stem cells are derived from a four- or five-day-old human embryo that is in the blastocyst phase of development. The embryos are usually extras that have been created in IVF (in vitro fertilization) clinics where several eggs are fertilized in a test tube, but only one is implanted into a woman.
the ability to differentiate into all possible cell types. Examples are the zygote formed at egg fertilization and the first few cells that result from the division of the zygote.
the ability to differentiate into almost all cell types. Examples include embryonic stem cells and cells that are derived from the mesoderm, endoderm, and ectoderm germ layers that are formed in the beginning stages of embryonic stem cell differentiation.
the ability to differentiate into a closely related family of cells. Examples include hematopoietic (adult) stem cells that can become red and white blood cells or platelets.
the ability to differentiate into a few cells. Examples include (adult) lymphoid or myeloid stem cells.
the ability to only produce cells of their own type, but have the property of self-renewal required to be labeled a stem cell. Examples include (adult) muscle stem cells.
One way to identify stem cells in a lab, and the standard procedure for testing bone marrow or hematopoietic stem cell (HSC), is by transplanting one cell to save an individual without HSCs Clonogenic assays (a laboratory procedure) can also be employed in vitro to test whether single cells can differentiate and self-renew Researchers may also inspect cells under a microscope to see if they are healthy and undifferentiated or they may examine chromosomes To test whether human embryonic stem cells are pluripotent, scientists allow the cells to differentiate spontaneously in cell culture, manipulate the cells so they will differentiate to form specific cell types, or inject the cells into an immunosuppressed mouse to test for the formation of a teratoma
Stem cells could potentially be used to grow a particular type of tissue or organ if directed to differentiate in a certain way. Additionally, replacement cells and tissues may be used to treat brain disease such as Parkinson's and Alzheimer's by replenishing damaged tissue, bringing back the specialized brain cells that keep unneeded muscles from moving Cell deficiency therapy Healthy heart cells developed in a laboratory may one day be transplanted into patients with heart disease, repopulating the heart with healthy tissue. Similarly, people with type I diabetes may receive pancreatic cells to replace the insulin-producing cells that have been lost or destroyed by the patient's own immune system.
Undifferentiated stem cells eventually differentiate partly because a particular gene is turned on or off. Stem cell researchers may help to clarify the role that genes play in determining what genetic traits or mutations we receive Scientists could measure a drug's effect on healthy, normal tissue by testing the drug on tissue grown from stem cells rather than testing the drug on human volunteers.