After a baby is born, cord blood is left in the umbilical cord and placenta. It is relatively easy to
collect, with no risk to the mother or baby. It contains haematopoietic (blood) stem cells: rare
cells normally found in the bone marrow.
Haematopoietic stem cells (HSCs) can make every type of cell in the blood – red cells, white
cells and platelets. They are responsible for maintaining blood production throughout our lives.
They have been used for many years in bone marrow transplants to treat blood diseases.
There have been several reports suggesting that cord blood may contain other types of stem cells
which can produce specialised cells that do not belong to the blood, such as nerve cells. These
findings are highly controversial among scientists and are not widely accepted.
1. Perinatal care providers should be informed about the promising clinical potential of
hematopoietic stem cells in umbilical cord blood and about current indications for its collection,
storage, and use, based on sound scientific evidence (II-3B). 2. Umbilical cord blood collection
should be considered for a sibling or parent in need of stem cell transplantation when an HLA-
identical bone marrow cell or peripheral stem cell donation from a sibling or parent is
unavailable for transplantation (II-2B). 3. Umbilical cord blood should be considered when
allogeneic transplantation is the treatment of choice for a child who does not have an HLA-
identical sibling or a well-matched, unrelated adult bone marrow donor (II-2B). 4. Umbilical
cord blood should be considered for allogeneic transplantation in adolescents and young adults
with hematologic malignancies who have no suitable bone marrow donor and who require urgent
transplantation (II-3B). 5. Altruistic donation of cord blood for public banking and subsequent
allogeneic transplantation should be encouraged when umbilical cord blood banking is being
considered by childbearing women, prenatal care providers, and(or) obstetric facilities (II-2B). 6.
Collection and long-term storage of umbilical cord blood for autologous donation is not
recommended because of the limited indications and lack of scientific evidence to support the
practice (III-D). 7. Birth unit staff should receive training in standardized cord blood unit volume
and reduce the rejection rate owing to labelling problems, bacterial contamination, and clotting
(II-3B). 8. The safe management of obstetric delivery should never be compromised to facilitate
cord blood collection. Manoeuvres to optimize cord blood unit volume, such as early clamping
of the umbilical cord, may be employed at the discretion of the perinatal care team, provided the
safety of the mother and newborn remains the major priority (III-A). 9. Collection of cord blood
should be performed after the delivery of the infant but before delivery of the placenta, using a
closed collection system and procedures that minimize risk of bacterial and maternal fluid
contamination (see Figures 1a-1c) (.
Provision of ideal transfusion support – The essence of thalassemia careApollo Hospitals
Thalassemia major is a major cause of transfusion dependence among patients world over. Provision of an adequate, uninterrupted and safe blood supply for these patients is the responsibility of the blood services as well as the society as a whole. Thalassemia management has evolved over a period of time and so have transfusion services. Various technological advancements have been introduced in the last few decades in order to enhance blood safety. Adoption of these newer technologies coupled with increasing awareness about voluntary blood donation in the general population can go a long way in improving the life expectancy as well the quality of life in these children.
In placental mammals, the umbilical cord (also called the navel string, birth cord or funiculus umbilicalis) is a conduit between the developing embryo or fetus and the placenta. During prenatal development, the umbilical cord is physiologically and genetically part of the fetus and, (in humans), normally contains two arteries (the umbilical arteries) and one vein (the umbilical vein), buried within Wharton's jelly. The umbilical vein supplies the fetus with oxygenated, nutrient-rich blood from the placenta. Conversely, the fetal heart pumps deoxygenated, nutrient-depleted blood through the umbilical arteries back to the placenta.
The blood within the umbilical cord, known as cord blood, is a rich and readily available source of primitive, undifferentiated stem cells (of type CD34-positive and CD38-negative). These cord blood cells can be used for bone marrow transplant.
Some parents choose to have this blood diverted from the baby's umbilical blood transfer through early cord clamping and cutting, to freeze for long-term storage at a cord blood bank should the child ever require the cord blood stem cells (for example, to replace bone marrow destroyed when treating leukemia).
In the future, cord blood-derived embryonic-like stem cells (CBEs) may be banked and matched with other patients, much like blood and transplanted tissues. The use of CBEs could potentially eliminate the ethical difficulties associated with embryonic stem cells (ESCs).
This power point is dedicated to deliver history of transfusion, its biology, Procedures for safe transfusion, Indications ,complications and their management.
HOW COMMON IS SICKLE CELL?
Sickle cell is most common among populations with ancestry in
sub-Saharan Africa; Spanish-speaking regions in the Western Hemisphere (South America, the Caribbean, and Central America); Saudi Arabia; India; and Mediterranean countries such as Turkey, Greece, and Italy. The CDC estimates that in the U.S.
SCD affects 90,000 to 100,000 Americans.
So this ppt will provide adequate knowledge to know about the disease sickle cell anemia.
Thanks
Provision of ideal transfusion support – The essence of thalassemia careApollo Hospitals
Thalassemia major is a major cause of transfusion dependence among patients world over. Provision of an adequate, uninterrupted and safe blood supply for these patients is the responsibility of the blood services as well as the society as a whole. Thalassemia management has evolved over a period of time and so have transfusion services. Various technological advancements have been introduced in the last few decades in order to enhance blood safety. Adoption of these newer technologies coupled with increasing awareness about voluntary blood donation in the general population can go a long way in improving the life expectancy as well the quality of life in these children.
In placental mammals, the umbilical cord (also called the navel string, birth cord or funiculus umbilicalis) is a conduit between the developing embryo or fetus and the placenta. During prenatal development, the umbilical cord is physiologically and genetically part of the fetus and, (in humans), normally contains two arteries (the umbilical arteries) and one vein (the umbilical vein), buried within Wharton's jelly. The umbilical vein supplies the fetus with oxygenated, nutrient-rich blood from the placenta. Conversely, the fetal heart pumps deoxygenated, nutrient-depleted blood through the umbilical arteries back to the placenta.
The blood within the umbilical cord, known as cord blood, is a rich and readily available source of primitive, undifferentiated stem cells (of type CD34-positive and CD38-negative). These cord blood cells can be used for bone marrow transplant.
Some parents choose to have this blood diverted from the baby's umbilical blood transfer through early cord clamping and cutting, to freeze for long-term storage at a cord blood bank should the child ever require the cord blood stem cells (for example, to replace bone marrow destroyed when treating leukemia).
In the future, cord blood-derived embryonic-like stem cells (CBEs) may be banked and matched with other patients, much like blood and transplanted tissues. The use of CBEs could potentially eliminate the ethical difficulties associated with embryonic stem cells (ESCs).
This power point is dedicated to deliver history of transfusion, its biology, Procedures for safe transfusion, Indications ,complications and their management.
HOW COMMON IS SICKLE CELL?
Sickle cell is most common among populations with ancestry in
sub-Saharan Africa; Spanish-speaking regions in the Western Hemisphere (South America, the Caribbean, and Central America); Saudi Arabia; India; and Mediterranean countries such as Turkey, Greece, and Italy. The CDC estimates that in the U.S.
SCD affects 90,000 to 100,000 Americans.
So this ppt will provide adequate knowledge to know about the disease sickle cell anemia.
Thanks
Blood transfusion is a complex activity in healthcare, constitutes an important part of various treatment protocols. Thus the indications for ordering blood must be fully justified to avoid over or misusage of this resource. In a 5 year retrospective study, details of patient’s diagnosis and indications for transfusion are correlated with whole blood and components transfused from the blood bank data base in SAQR Hospital, in Ras Al Khaimah UAE. It was found that 7,045 blood units which were transfused, maximum blood was supplied to surgical wards; most common indications for transfusion were injuries during road traffic accidents, orthopedic surgeries and cardiovascular surgeries. Nearly half (52%) of all blood was given to female recipients. UAE nationals received the maximum units of blood; most prevalent blood group among blood transfusion recipients was O +ve. Major usage of blood products transfused were packed RBC’s. The study concludes that regular assessment of blood component usage followed by academic sessions for clinicians is recommended for effective and efficient use of available blood to patients in a life-threatening situation.
a. The alleles are as followsaa - AlbinismAa AA - Normal pigm.pdfanurag1231
a. The alleles are as follows:
aa - Albinism
Aa / AA - Normal pigmentation
rr - Red hair
Rr / RR - Brown hair
b. The albino parent is homozygous recessive for hair color as her both parents had red hair. So
her genotype for hair color is \"rr\".
c. As the brown haired parent had one red haired parent, so he is heterozygous for hair color. So
his genotype for hair color is \"Rr\".
Since he had a child having albinism which is a recessive trait, this means he is heterozygous for
skin pigmentation too. So his genotype regarding skin pigmentation is \"Aa\".
d. The genotype of first child with respect to hair color is: \"Rr\" and with respect to skin
pigmentation is: \"Aa\".
Solution
a. The alleles are as follows:
aa - Albinism
Aa / AA - Normal pigmentation
rr - Red hair
Rr / RR - Brown hair
b. The albino parent is homozygous recessive for hair color as her both parents had red hair. So
her genotype for hair color is \"rr\".
c. As the brown haired parent had one red haired parent, so he is heterozygous for hair color. So
his genotype for hair color is \"Rr\".
Since he had a child having albinism which is a recessive trait, this means he is heterozygous for
skin pigmentation too. So his genotype regarding skin pigmentation is \"Aa\".
d. The genotype of first child with respect to hair color is: \"Rr\" and with respect to skin
pigmentation is: \"Aa\"..
Blood transfusion is a complex activity in healthcare, constitutes an important part of various treatment protocols. Thus the indications for ordering blood must be fully justified to avoid over or misusage of this resource. In a 5 year retrospective study, details of patient’s diagnosis and indications for transfusion are correlated with whole blood and components transfused from the blood bank data base in SAQR Hospital, in Ras Al Khaimah UAE. It was found that 7,045 blood units which were transfused, maximum blood was supplied to surgical wards; most common indications for transfusion were injuries during road traffic accidents, orthopedic surgeries and cardiovascular surgeries. Nearly half (52%) of all blood was given to female recipients. UAE nationals received the maximum units of blood; most prevalent blood group among blood transfusion recipients was O +ve. Major usage of blood products transfused were packed RBC’s. The study concludes that regular assessment of blood component usage followed by academic sessions for clinicians is recommended for effective and efficient use of available blood to patients in a life-threatening situation.
a. The alleles are as followsaa - AlbinismAa AA - Normal pigm.pdfanurag1231
a. The alleles are as follows:
aa - Albinism
Aa / AA - Normal pigmentation
rr - Red hair
Rr / RR - Brown hair
b. The albino parent is homozygous recessive for hair color as her both parents had red hair. So
her genotype for hair color is \"rr\".
c. As the brown haired parent had one red haired parent, so he is heterozygous for hair color. So
his genotype for hair color is \"Rr\".
Since he had a child having albinism which is a recessive trait, this means he is heterozygous for
skin pigmentation too. So his genotype regarding skin pigmentation is \"Aa\".
d. The genotype of first child with respect to hair color is: \"Rr\" and with respect to skin
pigmentation is: \"Aa\".
Solution
a. The alleles are as follows:
aa - Albinism
Aa / AA - Normal pigmentation
rr - Red hair
Rr / RR - Brown hair
b. The albino parent is homozygous recessive for hair color as her both parents had red hair. So
her genotype for hair color is \"rr\".
c. As the brown haired parent had one red haired parent, so he is heterozygous for hair color. So
his genotype for hair color is \"Rr\".
Since he had a child having albinism which is a recessive trait, this means he is heterozygous for
skin pigmentation too. So his genotype regarding skin pigmentation is \"Aa\".
d. The genotype of first child with respect to hair color is: \"Rr\" and with respect to skin
pigmentation is: \"Aa\"..
49) sensation is what we receive through senses and perception is wh.pdfanurag1231
49) sensation is what we receive through senses and perception is what we review those senses
and come to a conclusion based on our review.
50) Usually, sodium, calcium, and potassium ions are transported across membranes against a
concentration gradient. The transport of water immediately after the sodium ion transport is to
balance the volume upon ion transport. The Oral dehydration therapy involves administration of
water along with salt and sugar. The aim is to supply the body with required water that was lost
by dehydration and salts helps increase the uptake of water molecules in the blood, based on the
above said principle. That is when an excess amount of salt is available, a concentration gradient
is created which initiates ion transport across the membrane and water is also transferred along
with the salt to maintain the volume deficit.
Solution
49) sensation is what we receive through senses and perception is what we review those senses
and come to a conclusion based on our review.
50) Usually, sodium, calcium, and potassium ions are transported across membranes against a
concentration gradient. The transport of water immediately after the sodium ion transport is to
balance the volume upon ion transport. The Oral dehydration therapy involves administration of
water along with salt and sugar. The aim is to supply the body with required water that was lost
by dehydration and salts helps increase the uptake of water molecules in the blood, based on the
above said principle. That is when an excess amount of salt is available, a concentration gradient
is created which initiates ion transport across the membrane and water is also transferred along
with the salt to maintain the volume deficit..
1. INTRODUCTIONWe are currently living in the so-called informatio.pdfanurag1231
1. INTRODUCTION
We are currently living in the so-called information age which can be described as an era were
economic activities are mainly information based (an age of informationalization). This is due to
the development and use of technology. The main characteristics of this era can be summarized
as a rise in the number of knowledge workers, a world that has become more open - in the sense
of communication (global village/Gutenberg galaxy) and internationalization (trans-border flow
of data).
This paradigm shift brings new ethical and juridical problems which are mainly related to issues
such as the right of access to information, the right of privacy which is threatened by the
emphasis on the free flow of information, and the protection of the economic interest of the
owners of intellectual property.
In this paper the ethical questions related to the right to privacy of the individual which is
threatened by the use of technology will be discussed. Specific attention will be given to the
challenges these ethical problems pose to the information professional. A number of practical
guidelines, based on ethical norms will be laid down.
2. ETHICS
The ethical actions of a person can be described in general terms as those actions which are
performed within the criterium of what is regarded as good. It relates thus to the question of what
is good or bad in terms of human actions. According to Spinello (1995, p. 14) the purpose
of ethics is to help us behave honorably and attain those basic goods that make us more fully
human.
3. THE CONCEPT OF PRIVACY
3.1. Definition of Privacy
Privacy can be defined as an individual condition of life characterized by exclusion from
publicity (Neetling et al., 1996, p. 36). The concept follows from the right to be left alone (Stair,
1992, p. 635; Shank, 1986, p. 12)1 . Shank (1986, p. 13) states that such a perception of privacy
set the course for passing of privacy laws in the United States for the ninety years that followed.
As such privacy could be regarded as a natural right which provides the foundation for the legal
right. The right to privacy is therefore protected under private law.
The legal right to privacy is constitutionally protected in most democratic societies. This
constitutional right is expressed in a variety of legislative forms. Examples include the Privacy
Act (1974) in the USA, the proposed Open Democracy Act in South Africa (1996) and the Data
Protection Act in England. During 1994 Australia also accepted a Privacy Charter containing 18
privacy principles which describe the right of a citizen concerning personal privacy as effected
by handling of information by the state (Collier, 1994, p. 44-45). The Organization for Economic
and Coordination and Development (OECD) also accepted in 1980 the Guidelines for the
Protection of Privacy and Transborder Flow of Personal Data (Collier, 1994, p. 41).
Privacy is an important right because it is a necessary condition for other rights such as freedo.
1. d.) Organisms using oxygenic photosynthesis release oxygen into t.pdfanurag1231
1. d.) Organisms using oxygenic photosynthesis release oxygen into the atmosphere, causing an
increase in the oxygen in the atmosphere and allowing for the development of aerobes.
3. Type of fermentation. Salmonella are methyl red positive, VP negative, positive for H2S
production, negative for gelatin liquefaction, whereas Serratia is methyl red negative, VP
positive, negative for H2S production, and positive for gelatin liquefaction.
4. Mycoplasmas are fastidious organisms that require nutrient supplementation in the medium.
They require fetal or now born calf serum, heart infusion, salts, glucose and/or arginine. Their
growth rate is slow. Since they lack a cell wall, they cannot take up typical Gram stain. Also,,
their extremely small size makes it difficult to visualize them.
Solution
1. d.) Organisms using oxygenic photosynthesis release oxygen into the atmosphere, causing an
increase in the oxygen in the atmosphere and allowing for the development of aerobes.
3. Type of fermentation. Salmonella are methyl red positive, VP negative, positive for H2S
production, negative for gelatin liquefaction, whereas Serratia is methyl red negative, VP
positive, negative for H2S production, and positive for gelatin liquefaction.
4. Mycoplasmas are fastidious organisms that require nutrient supplementation in the medium.
They require fetal or now born calf serum, heart infusion, salts, glucose and/or arginine. Their
growth rate is slow. Since they lack a cell wall, they cannot take up typical Gram stain. Also,,
their extremely small size makes it difficult to visualize them..
1. All RTKs have a similar molecular architecture, with a ligand-bin.pdfanurag1231
1. All RTKs have a similar molecular architecture, with a ligand-binding region in the
extracellular domain, a single transmembrane helix, and a cytoplasmic region that contains the
protein tyrosine kinase (TK) domain plus additional carboxy (C-) terminal and juxtamembrane
regulatory regions. In general, growth factor binding activates RTKs by inducing receptor
dimerization, (Ullrich, 1990). Further, extracellular matrix proteins and certain surface proteins
on neighboring cells can also bind to and activate RTKs. The down stream effect is:molecules
direct cell differentiation by determining patterns of gene transcription.
2.The dominant negative receptor mutants which atlow concentrations, are capable of blocking
the intracellular activity of wild type e.g estrogen receptor (ER) mutants as reported by(Ince,
1993). Such mutants are useful in studying the pathway of signal transduction after receptor
activation.
3. Allostery is the process by which biological macromolecules (mostly proteins) transmit the
effect of binding at one site to another, often distal, functional site, allowing for regulation of
activity. Hence by allostery the components of the signal transduction pathway may be inhibited
or activated depending on the status of the cell i.e. regulated
Solution
1. All RTKs have a similar molecular architecture, with a ligand-binding region in the
extracellular domain, a single transmembrane helix, and a cytoplasmic region that contains the
protein tyrosine kinase (TK) domain plus additional carboxy (C-) terminal and juxtamembrane
regulatory regions. In general, growth factor binding activates RTKs by inducing receptor
dimerization, (Ullrich, 1990). Further, extracellular matrix proteins and certain surface proteins
on neighboring cells can also bind to and activate RTKs. The down stream effect is:molecules
direct cell differentiation by determining patterns of gene transcription.
2.The dominant negative receptor mutants which atlow concentrations, are capable of blocking
the intracellular activity of wild type e.g estrogen receptor (ER) mutants as reported by(Ince,
1993). Such mutants are useful in studying the pathway of signal transduction after receptor
activation.
3. Allostery is the process by which biological macromolecules (mostly proteins) transmit the
effect of binding at one site to another, often distal, functional site, allowing for regulation of
activity. Hence by allostery the components of the signal transduction pathway may be inhibited
or activated depending on the status of the cell i.e. regulated.
1)we can see the universe mostly in the form hydrogen and helium. .pdfanurag1231
1)
we can see the universe mostly in the form hydrogen and helium. So it is protonic.
2)
a) Light from when the Universe became transparent very soon after the Big bang.
3)
The cosmological principle limits the faintness of distant objects.
4)
These group elementys are made by adding oxygen nuclei which is the third most commen
element in the universe.
Solution
1)
we can see the universe mostly in the form hydrogen and helium. So it is protonic.
2)
a) Light from when the Universe became transparent very soon after the Big bang.
3)
The cosmological principle limits the faintness of distant objects.
4)
These group elementys are made by adding oxygen nuclei which is the third most commen
element in the universe..
1)D. Bacteria.2)B. Nuclear envelope3)A. Similar in function and .pdfanurag1231
1)D. Bacteria.
2)B. Nuclear envelope
3)A. Similar in function and evolved independently.
4)B. Prezygotic isolating mechanism.
Solution
1)D. Bacteria.
2)B. Nuclear envelope
3)A. Similar in function and evolved independently.
4)B. Prezygotic isolating mechanism..
1) Pen R contains penicillin resistance gene .Usually + or - is not .pdfanurag1231
1) Pen R contains penicillin resistance gene .Usually + or - is not denoted for antibiotics.
therefore the answer is option e.
2) a) conjugation is the exchange of genetic material by cell-cell contact via sex-pili.
3)a) High-Frequency recombination bacteria have F plasmid integrated into its chromosome and
transfers part of the chromosome along with F+ gene ,thereby resulting in F\' cells.
4) e) an F\' lac- E.coli when mates with F- Lac cell, the result will be F+, Lac-(from F\'),
Lac+(already present in recipient cell)
5) a) true, transformation is the transfer of an exogenous genetic material(DNA).
Solution
1) Pen R contains penicillin resistance gene .Usually + or - is not denoted for antibiotics.
therefore the answer is option e.
2) a) conjugation is the exchange of genetic material by cell-cell contact via sex-pili.
3)a) High-Frequency recombination bacteria have F plasmid integrated into its chromosome and
transfers part of the chromosome along with F+ gene ,thereby resulting in F\' cells.
4) e) an F\' lac- E.coli when mates with F- Lac cell, the result will be F+, Lac-(from F\'),
Lac+(already present in recipient cell)
5) a) true, transformation is the transfer of an exogenous genetic material(DNA)..
(1) CA genetic model organism needs to have all the above features.pdfanurag1231
(1) C
A genetic model organism needs to have all the above features to facilitate the genetic research
on it, like small genome, short generation time, large number of progeny, should adapt to lab
environment, propagation and maintaining them should be inexpensive.
(2) B
On chromosomes, we can find genes and these are nothing but long pieces of DNA associated
with histone. For every gene we will have two alleles and will be located on different
chromosomes but at the same place or loci and these are an alternate form of a gene.
(3) D
Blending inheritance theory is considered as the current theory of genetic inheritance as it states
that the egg and sperm from two parents will combine to form zygote and here the genetic
material from both parents will blend and will have an influence on genetic makeup of the
developing of offspring.
(4) C
C. elegans is traditionally considered as a classical genetic organism and it has been used to
study the gene function and variety mutagens were used on it to study the effect of different
mutations and their effect on protein function.
(5) A.
The number of chromosomes will be the same in the G1 phase, but in S phase only the number
of chromatids will double in its number.
Solution
(1) C
A genetic model organism needs to have all the above features to facilitate the genetic research
on it, like small genome, short generation time, large number of progeny, should adapt to lab
environment, propagation and maintaining them should be inexpensive.
(2) B
On chromosomes, we can find genes and these are nothing but long pieces of DNA associated
with histone. For every gene we will have two alleles and will be located on different
chromosomes but at the same place or loci and these are an alternate form of a gene.
(3) D
Blending inheritance theory is considered as the current theory of genetic inheritance as it states
that the egg and sperm from two parents will combine to form zygote and here the genetic
material from both parents will blend and will have an influence on genetic makeup of the
developing of offspring.
(4) C
C. elegans is traditionally considered as a classical genetic organism and it has been used to
study the gene function and variety mutagens were used on it to study the effect of different
mutations and their effect on protein function.
(5) A.
The number of chromosomes will be the same in the G1 phase, but in S phase only the number
of chromatids will double in its number..
NADPH is a reducing agent that act as an electron.pdfanurag1231
NADPH is a reducing agent that act as an electron donor and frequently as a
biochemical source of hydride (H-). so in the last step ketogroup reduce to alcohol with NADPH
(ketogroup to alcohol).
Solution
NADPH is a reducing agent that act as an electron donor and frequently as a
biochemical source of hydride (H-). so in the last step ketogroup reduce to alcohol with NADPH
(ketogroup to alcohol)..
The major shortcoming was that the electrons were.pdfanurag1231
The major shortcoming was that the electrons were thought to have fixed orbits like
planets around the sun. Now they are thought to occupy orbitals and have probabilities for being
within given distances from the nucleus. The orbitals (solutions to the Schroedinger Equation)
have shapes like hourglasses, spheres, hollowed out spheres, and more complicated shapes. As a
very distant side note Prof Carlos Stroud at the University of Rochester was able to excite atoms
and put their electrons into orbits much like those predicted by the Rutherford Model.
Solution
The major shortcoming was that the electrons were thought to have fixed orbits like
planets around the sun. Now they are thought to occupy orbitals and have probabilities for being
within given distances from the nucleus. The orbitals (solutions to the Schroedinger Equation)
have shapes like hourglasses, spheres, hollowed out spheres, and more complicated shapes. As a
very distant side note Prof Carlos Stroud at the University of Rochester was able to excite atoms
and put their electrons into orbits much like those predicted by the Rutherford Model..
The ball is an atom, the stick is a bond. You pu.pdfanurag1231
The ball is an atom, the stick is a bond. You put a stick into two balls to signify a
bond between two atoms
Solution
The ball is an atom, the stick is a bond. You put a stick into two balls to signify a
bond between two atoms.
The anion is a good leaving group because it is p.pdfanurag1231
The anion is a good leaving group because it is probably the most negative of the
anion. I assume the Xs represent an electronegative atom such as oxygen; therefore, it would
have the greatest repulision force (because it has so many electrons). Thus, it but be beneficial if
the most negative anion (the one with the most electrons) left because it would allow the
molecule to be under less stress and allow the remaining anions to spread out more (spread out
more spatially around the central C atom) (On the really long molecule with the bunch of Me
atoms) The most acidic hydrogen would be the one hanging off the second N from the left (it has
a think line pointing from the H to the N). It is the most acidic because the N is very
electronegative (more so than the carbons found in other molecules). The O atom is more
electronegative but it cannot lose the H because the OH is a polyatomic ion...u cannot split them
up! Thus the H hanging of the N is the most acidic!
Solution
The anion is a good leaving group because it is probably the most negative of the
anion. I assume the Xs represent an electronegative atom such as oxygen; therefore, it would
have the greatest repulision force (because it has so many electrons). Thus, it but be beneficial if
the most negative anion (the one with the most electrons) left because it would allow the
molecule to be under less stress and allow the remaining anions to spread out more (spread out
more spatially around the central C atom) (On the really long molecule with the bunch of Me
atoms) The most acidic hydrogen would be the one hanging off the second N from the left (it has
a think line pointing from the H to the N). It is the most acidic because the N is very
electronegative (more so than the carbons found in other molecules). The O atom is more
electronegative but it cannot lose the H because the OH is a polyatomic ion...u cannot split them
up! Thus the H hanging of the N is the most acidic!.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
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.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
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
Thesis Statement for students diagnonsed withADHD.ppt
After a baby is born, cord blood is left in the umbilical cord and p.pdf
1. After a baby is born, cord blood is left in the umbilical cord and placenta. It is relatively easy to
collect, with no risk to the mother or baby. It contains haematopoietic (blood) stem cells: rare
cells normally found in the bone marrow.
Haematopoietic stem cells (HSCs) can make every type of cell in the blood – red cells, white
cells and platelets. They are responsible for maintaining blood production throughout our lives.
They have been used for many years in bone marrow transplants to treat blood diseases.
There have been several reports suggesting that cord blood may contain other types of stem cells
which can produce specialised cells that do not belong to the blood, such as nerve cells. These
findings are highly controversial among scientists and are not widely accepted.
1. Perinatal care providers should be informed about the promising clinical potential of
hematopoietic stem cells in umbilical cord blood and about current indications for its collection,
storage, and use, based on sound scientific evidence (II-3B). 2. Umbilical cord blood collection
should be considered for a sibling or parent in need of stem cell transplantation when an HLA-
identical bone marrow cell or peripheral stem cell donation from a sibling or parent is
unavailable for transplantation (II-2B). 3. Umbilical cord blood should be considered when
allogeneic transplantation is the treatment of choice for a child who does not have an HLA-
identical sibling or a well-matched, unrelated adult bone marrow donor (II-2B). 4. Umbilical
cord blood should be considered for allogeneic transplantation in adolescents and young adults
with hematologic malignancies who have no suitable bone marrow donor and who require urgent
transplantation (II-3B). 5. Altruistic donation of cord blood for public banking and subsequent
allogeneic transplantation should be encouraged when umbilical cord blood banking is being
considered by childbearing women, prenatal care providers, and(or) obstetric facilities (II-2B). 6.
Collection and long-term storage of umbilical cord blood for autologous donation is not
recommended because of the limited indications and lack of scientific evidence to support the
practice (III-D). 7. Birth unit staff should receive training in standardized cord blood unit volume
and reduce the rejection rate owing to labelling problems, bacterial contamination, and clotting
(II-3B). 8. The safe management of obstetric delivery should never be compromised to facilitate
cord blood collection. Manoeuvres to optimize cord blood unit volume, such as early clamping
of the umbilical cord, may be employed at the discretion of the perinatal care team, provided the
safety of the mother and newborn remains the major priority (III-A). 9. Collection of cord blood
should be performed after the delivery of the infant but before delivery of the placenta, using a
closed collection system and procedures that minimize risk of bacterial and maternal fluid
contamination (see Figures 1a-1c) (I-B). 10. Public and private cord blood banks should strictly
adhere to standardized policies and procedures for transportation, safety testing, HLA typing,
cryopreservation, and long-term storage of umbilical cord blood units to prevent harm to the
2. recipient, to eliminate the risk of transmitting communicable diseases, and thus to maximize the
effectiveness of umbilical cord blood stem cell transplantation (II-1A). 11. Canada should
establish registration, regulation, and accreditation of cord blood collection centres and banks
(III-B). 12. Recruitment of cord blood donors should be fair and noncoercive. Criteria to ensure
an equitable recruitment process include the following: (a) adequate supply to meet population
transplantation needs; (b) fair distribution of the burdens and benefits of cord blood collection;
(c) optimal timing of recruitment; (d) appropriately trained personnel; and (e) accurate
recruitment message (III-A). 13. Informed consent for umbilical cord blood collection and
banking should be obtained during prenatal care, before the onset of labour, with confirmation of
consent after delivery (III-B). 14. Linkage of cord blood units and donors is recommended for
public safety. Policies regarding the disclosure of abnormal test results to donor parents should
be developed. Donor privacy and confidentiality of test results must be respected (III-C). 15.
Commercial cord blood banks should be carefully regulated to ensure that promotion and pricing
practices are fair, financial relationships are transparent, banked cord blood is stored and used
according to approved standards, and parents and care providers understand the differences
between autologous versus allogenic donations and private versus public banks (III-B). 16.
Policies and procedures need to be developed by perinatal facilities and national health
authorities to respond to prenatal requests for public and private cord blood banking (III-C).
There are many implications which we need to worry improper practice and other problems
which can cause a lot of social problems so proper policiy sholud be followed to ensure safety of
child and mother.
Solution
After a baby is born, cord blood is left in the umbilical cord and placenta. It is relatively easy to
collect, with no risk to the mother or baby. It contains haematopoietic (blood) stem cells: rare
cells normally found in the bone marrow.
Haematopoietic stem cells (HSCs) can make every type of cell in the blood – red cells, white
cells and platelets. They are responsible for maintaining blood production throughout our lives.
They have been used for many years in bone marrow transplants to treat blood diseases.
There have been several reports suggesting that cord blood may contain other types of stem cells
which can produce specialised cells that do not belong to the blood, such as nerve cells. These
findings are highly controversial among scientists and are not widely accepted.
1. Perinatal care providers should be informed about the promising clinical potential of
hematopoietic stem cells in umbilical cord blood and about current indications for its collection,
storage, and use, based on sound scientific evidence (II-3B). 2. Umbilical cord blood collection
3. should be considered for a sibling or parent in need of stem cell transplantation when an HLA-
identical bone marrow cell or peripheral stem cell donation from a sibling or parent is
unavailable for transplantation (II-2B). 3. Umbilical cord blood should be considered when
allogeneic transplantation is the treatment of choice for a child who does not have an HLA-
identical sibling or a well-matched, unrelated adult bone marrow donor (II-2B). 4. Umbilical
cord blood should be considered for allogeneic transplantation in adolescents and young adults
with hematologic malignancies who have no suitable bone marrow donor and who require urgent
transplantation (II-3B). 5. Altruistic donation of cord blood for public banking and subsequent
allogeneic transplantation should be encouraged when umbilical cord blood banking is being
considered by childbearing women, prenatal care providers, and(or) obstetric facilities (II-2B). 6.
Collection and long-term storage of umbilical cord blood for autologous donation is not
recommended because of the limited indications and lack of scientific evidence to support the
practice (III-D). 7. Birth unit staff should receive training in standardized cord blood unit volume
and reduce the rejection rate owing to labelling problems, bacterial contamination, and clotting
(II-3B). 8. The safe management of obstetric delivery should never be compromised to facilitate
cord blood collection. Manoeuvres to optimize cord blood unit volume, such as early clamping
of the umbilical cord, may be employed at the discretion of the perinatal care team, provided the
safety of the mother and newborn remains the major priority (III-A). 9. Collection of cord blood
should be performed after the delivery of the infant but before delivery of the placenta, using a
closed collection system and procedures that minimize risk of bacterial and maternal fluid
contamination (see Figures 1a-1c) (I-B). 10. Public and private cord blood banks should strictly
adhere to standardized policies and procedures for transportation, safety testing, HLA typing,
cryopreservation, and long-term storage of umbilical cord blood units to prevent harm to the
recipient, to eliminate the risk of transmitting communicable diseases, and thus to maximize the
effectiveness of umbilical cord blood stem cell transplantation (II-1A). 11. Canada should
establish registration, regulation, and accreditation of cord blood collection centres and banks
(III-B). 12. Recruitment of cord blood donors should be fair and noncoercive. Criteria to ensure
an equitable recruitment process include the following: (a) adequate supply to meet population
transplantation needs; (b) fair distribution of the burdens and benefits of cord blood collection;
(c) optimal timing of recruitment; (d) appropriately trained personnel; and (e) accurate
recruitment message (III-A). 13. Informed consent for umbilical cord blood collection and
banking should be obtained during prenatal care, before the onset of labour, with confirmation of
consent after delivery (III-B). 14. Linkage of cord blood units and donors is recommended for
public safety. Policies regarding the disclosure of abnormal test results to donor parents should
be developed. Donor privacy and confidentiality of test results must be respected (III-C). 15.
Commercial cord blood banks should be carefully regulated to ensure that promotion and pricing
4. practices are fair, financial relationships are transparent, banked cord blood is stored and used
according to approved standards, and parents and care providers understand the differences
between autologous versus allogenic donations and private versus public banks (III-B). 16.
Policies and procedures need to be developed by perinatal facilities and national health
authorities to respond to prenatal requests for public and private cord blood banking (III-C).
There are many implications which we need to worry improper practice and other problems
which can cause a lot of social problems so proper policiy sholud be followed to ensure safety of
child and mother.