Child development involves physical, cognitive, and social/emotional changes that occur in predictable stages from birth through adolescence. The document outlines several theories that describe and explain child development, including psychoanalytic, behaviorist, social learning, biological, cognitive, and systems theories. Key theorists discussed include Freud, Erikson, Watson, Skinner, Bandura, Piaget, Vygotsky, Bowlby, Hall, Gesell, and Bronfenbrenner.
Jean Piaget's theory of cognitive development suggests that children move through four different stages of mental development. His theory focuses not only on understanding how children acquire knowledge, but also on understanding the nature of intelligence.
This is a short talk delivered to parents of La Salle Academy's (Iligan City) Kindergarten pupils. Thanks to the invitation of Mr. Pendang of the Guidance Office.
Jean Piaget's theory of cognitive development suggests that children move through four different stages of mental development. His theory focuses not only on understanding how children acquire knowledge, but also on understanding the nature of intelligence.
This is a short talk delivered to parents of La Salle Academy's (Iligan City) Kindergarten pupils. Thanks to the invitation of Mr. Pendang of the Guidance Office.
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
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micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
CDSCO and Phamacovigilance {Regulatory body in India}NEHA GUPTA
The Central Drugs Standard Control Organization (CDSCO) is India's national regulatory body for pharmaceuticals and medical devices. Operating under the Directorate General of Health Services, Ministry of Health & Family Welfare, Government of India, the CDSCO is responsible for approving new drugs, conducting clinical trials, setting standards for drugs, controlling the quality of imported drugs, and coordinating the activities of State Drug Control Organizations by providing expert advice.
Pharmacovigilance, on the other hand, is the science and activities related to the detection, assessment, understanding, and prevention of adverse effects or any other drug-related problems. The primary aim of pharmacovigilance is to ensure the safety and efficacy of medicines, thereby protecting public health.
In India, pharmacovigilance activities are monitored by the Pharmacovigilance Programme of India (PvPI), which works closely with CDSCO to collect, analyze, and act upon data regarding adverse drug reactions (ADRs). Together, they play a critical role in ensuring that the benefits of drugs outweigh their risks, maintaining high standards of patient safety, and promoting the rational use of medicines.
New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
Local Advanced Lung Cancer: Artificial Intelligence, Synergetics, Complex Sys...Oleg Kshivets
Overall life span (LS) was 1671.7±1721.6 days and cumulative 5YS reached 62.4%, 10 years – 50.4%, 20 years – 44.6%. 94 LCP lived more than 5 years without cancer (LS=2958.6±1723.6 days), 22 – more than 10 years (LS=5571±1841.8 days). 67 LCP died because of LC (LS=471.9±344 days). AT significantly improved 5YS (68% vs. 53.7%) (P=0.028 by log-rank test). Cox modeling displayed that 5YS of LCP significantly depended on: N0-N12, T3-4, blood cell circuit, cell ratio factors (ratio between cancer cells-CC and blood cells subpopulations), LC cell dynamics, recalcification time, heparin tolerance, prothrombin index, protein, AT, procedure type (P=0.000-0.031). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and N0-12 (rank=1), thrombocytes/CC (rank=2), segmented neutrophils/CC (3), eosinophils/CC (4), erythrocytes/CC (5), healthy cells/CC (6), lymphocytes/CC (7), stick neutrophils/CC (8), leucocytes/CC (9), monocytes/CC (10). Correct prediction of 5YS was 100% by neural networks computing (error=0.000; area under ROC curve=1.0).
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2. Child Development
Definition:
Change in the child that occurs over time. Changes follow an
orderly pattern that moves toward greater complexity and
enhances survival.
Periods of development:
Prenatal period: from conception to birth
Infancy and toddlerhood: birth to 2 years
Early childhood: 2-6 years old
Middle childhood: 6-12 years old
Adolescence: 12-19 years old
3. Domains of Development
Development is described in three domains, but growth
in one domain influences the other domains.
Physical Domain:
body size, body proportions, appearance, brain development, motor
development, perception capacities, physical health.
Cognitive Domain:
thought processes and intellectual abilities including attention, memory,
problem solving, imagination, creativity, academic and everyday
knowledge, metacognition, and language.
Social/Emotional Domain:
self-knowledge (self-esteem, metacognition, sexual identity, ethnic
identity), moral reasoning, understanding and expression of emotions,
self-regulation, temperament, understanding others, interpersonal skills,
and friendships.
4. Theories
What is a theory?
Orderly set of ideas which describe, explain, and predict
behavior.
Why are theories important?
To give meaning to what we observe.
As a basis for action -- finding ways to improve the lives and
education of children.
6. 6th - 15th centuries
Medieval period
Preformationism: children seen as little adults.
Childhood is not a unique phase.
Children were cared for until they could begin
caring for themselves, around 7 years old.
Children treated as adults (e.g. their clothing,
worked at adult jobs, could be married, were made
into kings, were imprisoned or hanged as adults.)
7. 16th Century
Reformation period
Puritan religion influenced how children
were viewed.
Children were born evil, and must be
civilized.
A goal emerged to raise children effectively.
Special books were designed for children.
8. 17th Century
Age of Enlightenment
John Locke believed in tabula
rasa
Children develop in response to
nurturing.
Forerunner of behaviorism
www.cooperativeindividualism.org/ locke-john.jpg
9. 18th Century
Age of Reason
Jean-Jacques Rousseau
children were noble savages, born with an
innate sense of morality; the timing of growth
should not be interfered with.
Rousseau used the idea of stages of
development.
Forerunner of maturationist beliefs
10. 19th Century
Industrial Revolution
Charles Darwin
theories of natural selection and survival
of the fittest
Darwin made parallels between
human prenatal growth and
other animals.
Forerunner of ethology
11. 20th Century
Theories about children's development expanded
around the world.
Childhood was seen as worthy of special
attention.
Laws were passed to protect children,
12. Psychoanalytical
Theories
Beliefs focus on the formation of personality. According
to this approach, children move through various stages,
confronting conflicts between biological drives and social
expectations.
13. Sigmund Freud
Psychosexual Theory
Was based on his
therapy with troubled
adults.
He emphasized that a
child's personality is
formed by the ways
which his parents
managed his sexual and
aggressive drives.
14. Erik Erikson
Psychosocial Theory
Expanded on Freud's theories.
Believed that development is life-long.
Emphasized that at each stage, the child
acquires attitudes and skills resulting from
the successful negotiation of the
psychological conflict.
Identified 8 stages:
Basic trust vs mistrust (birth - 1 year)
Autonomy vs shame and doubt (ages 1-3)
Initiative vs guilt (ages 3-6)
Industry vs inferiority (ages 6-11)
Identity vs identity confusion (adolescence)
Intimacy vs isolation (young adulthood)
Generativity vs stagnation (middle adulthood)
Integrity vs despair (the elderly)
15. Behavioral and Social
Learning Theories
Beliefs that describe the importance of the
environment and nurturing in the growth of a
child.
16. Behaviorism
Developed as a response to
psychoanalytical theories.
Behaviorism became the dominant view
from the 1920's to 1960's.
17. John Watson
Early 20th century, "Father of
American Behaviorist theory.”
Based his work on Pavlov's
experiments on the digestive
system of dogs.
Researched classical conditioning
Children are passive beings who
can be molded by controlling the
stimulus-response associations.
www.psych.utah.edu./…/Cards/Watson.html
18. B. F. Skinner
Proposed that children "operate" on their
environment, operational conditioning.
Believed that learning could be broken down
into smaller tasks, and that offering
immediate rewards for accomplishments
would stimulate further learning.
19. Social Learning Theory
Albert Bandura
Stressed how children learn by observation
and imitation.
Believed that children gradually become
more selective in what they imitate.
21. Maturationists: G. Stanley Hall
and Arnold Gesell
Believed there is a predetermined biological
timetable.
Hall and Gesell were proponents of the
normative approach to child study: using
age-related averages of children's growth
and behaviors to define what is normal.
22. Ethology
Examines how behavior is determined by a
species' need for survival.
Has its roots in Charles Darwin's research.
Describes a "critical period" or "sensitive
period,” for learning
23. Konrad Lorenz
Ethologist,
known for his
research on
imprinting.
24. Attachment Theory
John Bowlby applied ethological
principles to his theory of attachment.
Attachment between an infant and her
caregiver can insure the infant’s survival.
26. Jean Piaget Cognitive development
theory
Children "construct" their
understanding of the world through
their active involvement and
interactions.
Studied his 3 children to focus not
on what they knew but how they
knew it.
Described children's understanding
as their "schemas” and how they
use:
assimilation
accommodation.
27. Piaget’s Cognitive
Development Stages
Sensori-motor
Ages birth - 2: the infant uses his senses and motor abilities to
understand the world
Preoperation
Ages 2-7: the child uses metal representations of objects and is
able to use symbolic thought and language
Concrete operations
Ages 7-11; the child uses logical operations or principles when
solving problems
Formal operations
Ages 12 up; the use of logical operations in a systematic fashion
and with the ability to use abstractions
28. Lev Vygotsky
Socio-Cultural Theory
Agreed that children are active
learners, but their knowledge is
socially constructed.
Cultural values and customs
dictate what is important to
learn.
Children learn from more expert
members of the society.
Vygotsky described the "zone of
proximal development", where
learning occurs.
ced.ncsc.edu/hyy/devtheories.htm
29. Information Processing Theory
Uses the model of the computer to describe
how the brain works.
Focuses on how information is perceived,
how information is stored in memory, how
memories are retrieved and then used to
solve problems.
30. Systems Theory
The belief that development can't be explained
by a single concept, but rather by a complex
system.
31. Urie Bronfenbrenner
Ecological Systems Theory
The varied systems of the
environment and the
interrelationships among the
systems shape a child's
development.
Both the environment and biology
influence the child's development.
The environment affects the child
and the child influences the
environment.
32. Bronfenbrenner’s Ecological Model
The microsystem - activities and
interactions in the child's immediate
surroundings: parents, school,
friends, etc.
The mesosystem - relationships
among the entities involved in the
child's microsystem: parents'
interactions with teachers, a school's
interactions with the daycare
provider
The exosystem - social institutions
which affect children indirectly: the
parents' work settings and policies,
extended family networks, mass
media, community resources
The macrosystem - broader cultural
values, laws and governmental
resources
The chronosystem - changes which
occur during a child's life, both
personally, like the birth of a sibling
and culturally, like the Iraqi war.
33. Outline of 20th Century
Theories
Psychoanalytical Theories
Psychosexual: Sigmund Freud
Psychosocial: Erik Erikson
Behavioral & Social Learning Theories
Behaviorism: Classical Conditioning - John Watson &
Operant Conditioning - B.F. Skinner
Social Learning - Albert Bandera
Biological Theories
Maturationism: G. Stanley Hall & Arnold Gesell
Ethology: Konrad Lorenz
Attachment: John Bowlby
34. Outline of 20th Century
Theories
Cognitive Theories
Cognitive Development: Jean Piaget
Socio-cultural: Lev Vygotsky
Information Processing
Systems Theories
Ecological Systems: Urie Bronfenbrenner
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