Population and demography refer to the statistical study of human populations in terms of their size, structure, and changes over time. Key factors studied include birth rates, death rates, and migration. Population growth impacts issues like food supply, housing, employment and the environment. Demography analyzes population aggregates using vital statistics and census data on attributes like age, sex and location. Population pyramids and dependency ratios provide insights into a population's structure. Theories like Malthusian and demographic transition theory attempt to explain population growth and decline patterns over time. Demographic data is important for planning education, health and other social services to meet societal needs.
demography
Pakistan demographic profile 2023
population dynamics, size, distribution , composition, structure, changes (spatial and temporal) etc
fecundity and fertility
rate and ratio
mortality and morbidity
migration
population pyramid
population transition
population trap
population momentum
urbanization
migration
growth rate
census
vital index
mid census year population measurement
population doubling time
carrying capacity
dependency ratio
census
life table
indecis
sex ratio
uses of demography
income, occupation, education, gender, race, employment, languages etc
HUMAN POPULATION - MooreLIVING WITH THE EARTHHUMAN .docxsheronlewthwaite
HUMAN POPULATION - Moore
*
LIVING WITH THE EARTH
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
Objectives for this Chapter A student reading this chapter will be able to:1. Define the attributes of populations including birth and death rates, growth rate, density, and mobility (immigration and emigration).2. Calculate rate of natural increase from birth and death rates, and mathematically demonstrate the effects of age-sex composition on a population.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
Objectives for this Chapter3. Define biotic potential and maximum growth rate, and list the various limits to growth 4. Identify, list, and explain the population growth forms. 5. Recognize and explain the concept of population explosion with respect to complete and incomplete demographic transition. Define population implosion and discuss the conditions that lead to this phenomena.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
Objectives for this Chapter6. Explain the role of urbanization in influencing sustainability of populations.7. Explain global population projections and differentiate between developed and lesser developed countries with respect to those projections. 8. List and discuss the various options for fertility control methods, while contrasting the effectiveness, risks, and benefits of each type.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
LIVING WITH THE EARTH
HUMAN POPULATION
INTRODUCTIONUnderstanding the dynamics of human populations is a first order of business in beginning the study of environmental health.There is growing realization that surging populations, environmental degradation, and ethnic conflict are strongly intertwined.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
LESSER DEVELOPED COUNTRIESOverpopulation, infectious disease, unprovoked crime, few resources, and the influx of more refugees, increases the erosion of nation-states leading to the empowerment of private armies, security firms and international drug cartels.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
LESSER DEVELOPED COUNTRIESThis is a vision of the early 21st century in many parts of the lesser developed countries (LDCs), and threatens to expand along with the growth of human populations.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
THE CHARACTERISTICS OF POPULATIONSSpeciesA species is normally considered to be a group of organisms that can breed together with the production of a viable and fertile offspring. Different species not only have differing physical attributes, but they also differ in the population characteristics.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
PopulationA population is considered to be the breeding group for an organism.Each population has characteristics that help to identify it.Some of these characteristics are birth rate, death rate, rate of natural increase, age distribution, and sex ratio.
HUMAN POPULATION - Moore
HUMAN POPULATION - Mo ...
Population ecology is a field of scientific research that examines the dynamics of populations of living organisms within a given environment. It involves the study of various aspects of populations, including their growth, distribution, density, age structure, and the factors that affect these attributes. Key components of population ecology include:
Population Dynamics: Population ecologists study how the size of a population changes over time. This involves examining birth rates (natality), death rates (mortality), immigration, and emigration.
Population Distribution: Understanding how individuals in a population are spatially distributed is essential. Populations can be clumped, evenly dispersed, or randomly distributed in a habitat.
Population Density: This refers to the number of individuals of a species per unit area or volume of habitat. Population density can have significant ecological and environmental implications.
Age Structure: The age distribution within a population can provide insights into its growth potential and reproductive capacity. It can help in predicting future population trends.
Population Growth Models: Population ecologists use mathematical models to describe and predict population growth, such as exponential and logistic growth models.
Limiting Factors: Population growth is limited by various factors, including availability of resources, predation, competition, disease, and environmental conditions. Population ecologists study how these factors influence population dynamics.
Carrying Capacity: The carrying capacity of an environment is the maximum population size that can be sustained by available resources without causing environmental degradation or resource depletion.
Interactions: Populations do not exist in isolation. Interactions with other species, such as predation, competition, and mutualism, are essential considerations in population ecology.
Conservation and Management: Population ecology plays a critical role in the conservation and management of endangered species and ecosystems. It helps in making informed decisions to protect and sustainably manage populations.
Research Methods: Population ecologists employ various field and laboratory techniques, including population censuses, mark and recapture studies, and modeling, to gather data and understand population dynamics.
demography
Pakistan demographic profile 2023
population dynamics, size, distribution , composition, structure, changes (spatial and temporal) etc
fecundity and fertility
rate and ratio
mortality and morbidity
migration
population pyramid
population transition
population trap
population momentum
urbanization
migration
growth rate
census
vital index
mid census year population measurement
population doubling time
carrying capacity
dependency ratio
census
life table
indecis
sex ratio
uses of demography
income, occupation, education, gender, race, employment, languages etc
HUMAN POPULATION - MooreLIVING WITH THE EARTHHUMAN .docxsheronlewthwaite
HUMAN POPULATION - Moore
*
LIVING WITH THE EARTH
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
Objectives for this Chapter A student reading this chapter will be able to:1. Define the attributes of populations including birth and death rates, growth rate, density, and mobility (immigration and emigration).2. Calculate rate of natural increase from birth and death rates, and mathematically demonstrate the effects of age-sex composition on a population.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
Objectives for this Chapter3. Define biotic potential and maximum growth rate, and list the various limits to growth 4. Identify, list, and explain the population growth forms. 5. Recognize and explain the concept of population explosion with respect to complete and incomplete demographic transition. Define population implosion and discuss the conditions that lead to this phenomena.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
Objectives for this Chapter6. Explain the role of urbanization in influencing sustainability of populations.7. Explain global population projections and differentiate between developed and lesser developed countries with respect to those projections. 8. List and discuss the various options for fertility control methods, while contrasting the effectiveness, risks, and benefits of each type.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
LIVING WITH THE EARTH
HUMAN POPULATION
INTRODUCTIONUnderstanding the dynamics of human populations is a first order of business in beginning the study of environmental health.There is growing realization that surging populations, environmental degradation, and ethnic conflict are strongly intertwined.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
LESSER DEVELOPED COUNTRIESOverpopulation, infectious disease, unprovoked crime, few resources, and the influx of more refugees, increases the erosion of nation-states leading to the empowerment of private armies, security firms and international drug cartels.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
LESSER DEVELOPED COUNTRIESThis is a vision of the early 21st century in many parts of the lesser developed countries (LDCs), and threatens to expand along with the growth of human populations.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
THE CHARACTERISTICS OF POPULATIONSSpeciesA species is normally considered to be a group of organisms that can breed together with the production of a viable and fertile offspring. Different species not only have differing physical attributes, but they also differ in the population characteristics.
HUMAN POPULATION - Moore
HUMAN POPULATION - Moore
*
PopulationA population is considered to be the breeding group for an organism.Each population has characteristics that help to identify it.Some of these characteristics are birth rate, death rate, rate of natural increase, age distribution, and sex ratio.
HUMAN POPULATION - Moore
HUMAN POPULATION - Mo ...
Population ecology is a field of scientific research that examines the dynamics of populations of living organisms within a given environment. It involves the study of various aspects of populations, including their growth, distribution, density, age structure, and the factors that affect these attributes. Key components of population ecology include:
Population Dynamics: Population ecologists study how the size of a population changes over time. This involves examining birth rates (natality), death rates (mortality), immigration, and emigration.
Population Distribution: Understanding how individuals in a population are spatially distributed is essential. Populations can be clumped, evenly dispersed, or randomly distributed in a habitat.
Population Density: This refers to the number of individuals of a species per unit area or volume of habitat. Population density can have significant ecological and environmental implications.
Age Structure: The age distribution within a population can provide insights into its growth potential and reproductive capacity. It can help in predicting future population trends.
Population Growth Models: Population ecologists use mathematical models to describe and predict population growth, such as exponential and logistic growth models.
Limiting Factors: Population growth is limited by various factors, including availability of resources, predation, competition, disease, and environmental conditions. Population ecologists study how these factors influence population dynamics.
Carrying Capacity: The carrying capacity of an environment is the maximum population size that can be sustained by available resources without causing environmental degradation or resource depletion.
Interactions: Populations do not exist in isolation. Interactions with other species, such as predation, competition, and mutualism, are essential considerations in population ecology.
Conservation and Management: Population ecology plays a critical role in the conservation and management of endangered species and ecosystems. It helps in making informed decisions to protect and sustainably manage populations.
Research Methods: Population ecologists employ various field and laboratory techniques, including population censuses, mark and recapture studies, and modeling, to gather data and understand population dynamics.
Adjusting primitives for graph : SHORT REPORT / NOTESSubhajit Sahu
Graph algorithms, like PageRank Compressed Sparse Row (CSR) is an adjacency-list based graph representation that is
Multiply with different modes (map)
1. Performance of sequential execution based vs OpenMP based vector multiply.
2. Comparing various launch configs for CUDA based vector multiply.
Sum with different storage types (reduce)
1. Performance of vector element sum using float vs bfloat16 as the storage type.
Sum with different modes (reduce)
1. Performance of sequential execution based vs OpenMP based vector element sum.
2. Performance of memcpy vs in-place based CUDA based vector element sum.
3. Comparing various launch configs for CUDA based vector element sum (memcpy).
4. Comparing various launch configs for CUDA based vector element sum (in-place).
Sum with in-place strategies of CUDA mode (reduce)
1. Comparing various launch configs for CUDA based vector element sum (in-place).
Techniques to optimize the pagerank algorithm usually fall in two categories. One is to try reducing the work per iteration, and the other is to try reducing the number of iterations. These goals are often at odds with one another. Skipping computation on vertices which have already converged has the potential to save iteration time. Skipping in-identical vertices, with the same in-links, helps reduce duplicate computations and thus could help reduce iteration time. Road networks often have chains which can be short-circuited before pagerank computation to improve performance. Final ranks of chain nodes can be easily calculated. This could reduce both the iteration time, and the number of iterations. If a graph has no dangling nodes, pagerank of each strongly connected component can be computed in topological order. This could help reduce the iteration time, no. of iterations, and also enable multi-iteration concurrency in pagerank computation. The combination of all of the above methods is the STICD algorithm. [sticd] For dynamic graphs, unchanged components whose ranks are unaffected can be skipped altogether.
The Building Blocks of QuestDB, a Time Series Databasejavier ramirez
Talk Delivered at Valencia Codes Meetup 2024-06.
Traditionally, databases have treated timestamps just as another data type. However, when performing real-time analytics, timestamps should be first class citizens and we need rich time semantics to get the most out of our data. We also need to deal with ever growing datasets while keeping performant, which is as fun as it sounds.
It is no wonder time-series databases are now more popular than ever before. Join me in this session to learn about the internal architecture and building blocks of QuestDB, an open source time-series database designed for speed. We will also review a history of some of the changes we have gone over the past two years to deal with late and unordered data, non-blocking writes, read-replicas, or faster batch ingestion.
Chatty Kathy - UNC Bootcamp Final Project Presentation - Final Version - 5.23...John Andrews
SlideShare Description for "Chatty Kathy - UNC Bootcamp Final Project Presentation"
Title: Chatty Kathy: Enhancing Physical Activity Among Older Adults
Description:
Discover how Chatty Kathy, an innovative project developed at the UNC Bootcamp, aims to tackle the challenge of low physical activity among older adults. Our AI-driven solution uses peer interaction to boost and sustain exercise levels, significantly improving health outcomes. This presentation covers our problem statement, the rationale behind Chatty Kathy, synthetic data and persona creation, model performance metrics, a visual demonstration of the project, and potential future developments. Join us for an insightful Q&A session to explore the potential of this groundbreaking project.
Project Team: Jay Requarth, Jana Avery, John Andrews, Dr. Dick Davis II, Nee Buntoum, Nam Yeongjin & Mat Nicholas
2. DEFINITION ALAND NATURE OF POPULATION AND
DEMOGRAPHY
THE STUDY OF POP ULATION IS OF MAJOR CONCERN TO SOCIOLOGIST AND
SOCIAL SCIENTISTS.
POPULATION IS THE NUMBER OF PERSONS OCCUPYING A CERTAIN
GEOGRAPHIC AREA, DRAWING SUBSTANCE FROM THEIR HABITAT, AND
INTERACTING WITH ONE ANOTHER.
DEMGRAPHERS COMMONLY DEFINE POPULATION AS A COLLECTIVE GROUP OF
INDIVIDUALS OCCUPYING A PARTICULAR PLACE AT A GIVEN TIME.
THREE KEY WORDS ARE INVOLVED IN THE DEFINITION OF POPULATION:
GROUP
PLACE
TIME
3. POPULATION GROWTH
POPULATION GROWTH IS A MAJOR FACTOR IN ENERGY CONSUMPTION,
HOUSING SHORTAGES,INFLATION, FOOD SECURITY, UNEMPLOYMENT
AND ENVIRONMENTAL DEGRATION.
POPULATION GROWTH HAS BEEN AND WILL CONTINUE TO BE AN
INTEGRAL PART OF OUR LIVES.IT ACOUNT FOR THE EMERGENCE AND
INTENSIFICATION OF MANY LOCAL, NATURAL AND GLOBAL PROBLEMS
LIKE POVERTY AND INEQUALITY, ENERGY CRISIS, MALNUTRITION,AND
SCARCITY OR FOOD SUPPLY, HOUSING PROBLEMS, CRIMINALTY,
ECONOMIC CRISIS AND ENVIRONMENTAL DEGRATION;THE WORLD’S
ALREADY DEPLETED RESOURCES RE CURRENTLY THREATENED BY AN
UNCHECKED POPULATION GROWTH.
4. DEMOGRAPHY
IN THE BOOKS OF COLLINS DICTIONARY OF SCIOLOGY ,DAVID AND JULIA
GARY DEFINE DEMOGRAPHY(FROM THE GREEK “DEMOS”, PEOPLE) AS THE
STATISTICAL STUDY OF HUMAN POPULATION WITH REGARD TO THEIR SIZE
AND STRUCTURE,THEIR COMPOSITION BY SEX,AGE,MARITAL,STATUS AND
ETHNIC ORIGIN, AND THE CHANGES TO THESE POPULATION LIKE CHANGES
IN THEIR BIRTH RATES,DEATH RATES AND IMMIGRATION.
DEMOGRAPHY IS THE STATISTICAL ANALYSIS AND DESCRITION OF
POPULATION AGGREGATES WITH REFERENCE TO THE DISTRIBUTION, VITAL
STATISTICS, AGE, SEX AND RELATED FACTORS
THE SCIENCE OF DEMOGRAPHY LOOKS ALSO INTO FACTORS THAT MAY
CAUSE POPULATION TO INCREASE OR DECREASE IN ANY GIVEN AREA.IT IS
CONCERNED WITH NUMBERS AND QUANTITIES AND THE RELATION
BETWEEN THEM.DEMOGRAPHERS USE THE STATISTICAL METHOD IN THEIR
ANALYSIS OF DEMOGRAPHIC DATA.
DEMOGRAPHERS IS THE STATTITICAL ANALYSIS AND DESCRITION OF
POPULATION AGREGATES WITH REFERENCE TO THE DISTRIBUTION ,
VITAL STATISTICS,AGE,SEX AND RELATED FACTORS.
5. IMPORTANCE OF DEMOGRAPHY AND DEMOGRAPHIC
DATA
CITING THE IMPORTANCE OF DEMOGRAPHIC DATA, THE PROGRAMME
OF ACTION OF THE UNITED NATIONS INTERNATIONAL CONFERENCE ON
POPULATION AND DEVELOPMENT,CAIRO 1994,STATES”THE EVERYDAY
ACTIVITIES OF ALL HUMAN BEINGS AFFECT COMMUNITY PATTERNS AND
LEVELS OF USE OF NATURAL RESOURSES, THE STATE OF THE
ENVIRONMENT, AND THE PACE AND QUALITY OF ECONOMIC AND SOCIAL
DEVELOPMENT ”.
DEMOGRAPHIC DATA PROVIDE A BASIS FOR PREDICTING FUTURE
TRENDS AND MAKING INFORMED DECISIONS,AS PANOPIO STATES,
DEMOGRAPHIC DATA ARE IMPORTANT FOR THE FORMULATION ,
IMPLEMENTATION, AND EVALUATION OF PLANS, POLIICIES, AND
PROGRAMS FOR EDUCATION ,HOUSING,HEALTH, EMPLOYMENT,
TRANSPROTATION ,RECREATIONAL NEEDS AND OTHER FORMS OF
SOCIAL SERVICES.
DEMOGRAPHIC DATA CAN GUIDE POLICY MAKERS IN MEETING THE
NEEDS AND OF VARIOUS SECTORS OF THE SOCIETY,SUCH AS THE
YOUNG, THE ADULT AND AGED, THE UNEMPLOYED, THE POOR, AND THE
VARIOUS CULTURAL GROUPS.
6. SOURCES OF DEMOGRAPHIC DATA
THERE ARE VARIED SOURCES OF DEMOGRAPHIC DATA ARE:
POPULATION CENSUS LIKE POPULATION COUNT
VITAL REGISTRATION STATISTICS SYSTEM LIKE BIRTH, DEATH,
MARRIAGE, AND DIVORCE.
SAMPLE OR SPPECIAL SURVEYS LIKE SURVEYS OF HUSEHOLDS
DEMOGRAPHIC DATA GATHERED AND PROCESSED BY GOVERNMENT
AGENCIES.
7. COMPONENTS OF POPULATION CHANGE
FERTILITY(BIRTHS)
-REFERS TO THE ACTUAL NUMBER OF CHILDREN BORN TO A WOMAN OR
GROUPED OF WOMEM.A SIMPLE WAY TO MEASURE FERTILITY IS TO GET THE CRUDE
BIRTH RATE;
EQ.
REGISTERED NUMBER OF BIRTHS IN YEAR * 1000
CBR= -----------------------------------------------------------------------------
TOTAL MID-YEAR POPULATION
MORTALITY(DEATHS)
-REFERS TO THE NUMBER OF DEATHS PER 1000 OF THE TOTAL MID-YEAR
POPULATION IN PARTICULAR PLACE AT A SPECIFIED TIME, AND IS MEASURED BY THE
CRUDE DEATH RATE.
EQ.
REGISTERED NUMBER OF DEATHS A YEAR * 1000
CDR=------------------------------------------------------------------------------
TOTAL MID-YEAR POPULATION
MIGRATION(IMMIGRATION AND EMIGRATION)
-REFERS TO THE SPATIAL MOVEMENT OF PERSON OR GROUPED OF
PERSONS WITHIN A COUNTRY OR SPECIFIED TERRITORY, MORE OR LESS FOR
PERMANENT RECIDENCY.
8. POPULATION PYRAMID
POPULATION PYRAMID REFERS TO TWO DIMENSIONAL GRAPH USED TO
DISPLAY THE AGE AND GENDER STRUCTURE OF THE POPULATION.IF
BIRTH RATE IS HIGH AS IT IS TODAY IN THE PHILIPPINES AND OTHERE
DEVELOPING COUNTRIES ,THE PYRAMID WILL BE MORE TRIANGULAR
BECAUSE OF THE LARGE BABIES ADDED TO THE BOTTOM EACH
YEAR.AS BIRTH RATE DECREASES ,AS IT IS TODAY IN DEVELOPED
NATIONS ,THE PYRAMID TAKES ON A MORE DIAMOND SHAPE.IT MEANS
THAT A GREAT PORTION OF TH POPULATION ARE ADDED TO THE
NATION’S PRODUCTIVE LABOR FORCE.
9. SOME CHARACTERISTICS OF POPULATION
AGE STRUCTURE REFERS TO THE PROPORTION OF PEOPLE AT THE
DIFFERENT AGE AND LEVELS.
SEX COMPOSITION REFERS TO HOW THE TOTAL POPULATION IS
COMPOSED IN TERMS OF BEING MALES OR FEMALES.
DEPENDENCY RATIO REFERS TO THE PROPORTION OF THE 0-4 AND THE
65-OVER AGE LEVELS PER ONE HUNDRED PERSONS AGED 15-64.WITHIN
THE YOUNG AGE STRUCTURE IN THE PHILIPPINES ,OUR DEPENDENCY
RATIO IS HIGH COMPARED WITH THE DEPENDENCY IN DEVELOPED
COUNTRIES A HIGH DEPENDENCY RATIO IMPLIES HEAVY FINANCIAL
SUPPORT FOR MORE DEPENDENCIES.
POPULATION DENSITY REFERS TO THE NUMBER OF PERSONS THAT
CAN BE EQUALLY AND STATISTICALLY DISTRIBUTED PER SQUARE
KILOMETER IN A GIVEN GEOGRAPHICAL AREA CONCIDERING THE
POPULATION IN THE SAID AREA.
10. THEORIES ON POPULATION GROWTH AND
DECLINE
MALTHUSIAN THEORY(THOMAS MALTHUS 1766-1834)
-”AN ESSAY N THE PRINCIPLE OF POPULATION”,THEORIZED PESSIMISTICALLY
THAT POPULATION WAS UNCONTROLABLE AND THAT IT WOULD.
-ARGUED THAT HUMAN POPULATIONS ARE INESCAPABLY CAUGHT IN A CONFLICT
BETWEEN THEIR “NEED FOR FOOD” AND “PASSION BETWEEN SEXES”.POPULATION,HE
MAINTAINED,INCREASES GEOMETRICALLY (2,4,8,16…..),WHILE FOOD SUPPLIES INCREASE
ONLY ARITHMETICALLY(2,3,4,5…..)
-NO POPULATIONCAN CONTINUE TO GROW INDEFINITELY,BECAUSE PEOPLE WILL
INCREASE THEIR NUMBER TO THE LIMIT OF SUBSISTENCE.
MARXIAN THEORY(KARL MARX)
- MARX BELIEVED THAT THE PROBLEM WAS NOT PRIMARILY ONE OF POPULATION
BUT ONE OF THE OWNERSHIP OF THE MEANS OF PRODUCTION AND THE INEQUITABLE
DISTRIBUTION OF THE SOCIETYS WEALTH.
THE DEMOGRAPHIC TRANSITION THEORY
-THE CONCEPT OF DEMOGRAPHIC THEORY REFERS TO THE THREE
CHARACTERISTICS STAGES OF POPULATION:
FIRST STAGE-BOTH THE BIRTH RATE AND THE DEATH RATE ARE HIGH AND RELATIVELY
STABLE.
SECOND STAGE-THE BIRTH RATE REMAINS HIGH BUT THE DEATH RATE DECLINES AS
THE NUTRITION,HEALTH,AND SANITATION IMPROVE.
STAGE THREE-BOTH THE DEATH AND THE BIRTH RATE ARE LOW AND IN BALANCE
AGAIN.
-