The table shows data on the population in city N by age group and on the number of visits to the clinic by age group. The reception was conducted by 50 doctors. Calculate indicators:

Intensities

Extensity

Ratios

Visibility.

Population size and number of visits to the clinic by people of different age groups in city n (in absolute numbers)

Age in years	Population	Number of hits	Intensive coefficient	Extensive coefficient

Solution:

Intensity indicators

Turnover rate 60,000 *1,000

total population = –––––––––––––––––– = 1,200‰

(per 1000 population) 50,000

Turnover rate 3,000 * 1,000

at age = ––––––––––––– = 600‰

15-19 years old 5,000

(etc. by age group)

Extensity indicators

Share of calls 3,000

persons aged 15-19 years = ––––––––– *100 = 5%

among all requests 60,000

etc. for all age groups

Ratio indicator

Number of doctors 50 * 10,000

per 10,000 = –––––––––––– = 10

population 50,000

Visibility Score

Calculated as a percentage (in relation to the intensive turnover rate at the age of 15-19 years, taken as 100).

600 – 100% 600 – 100%

1200 – x% 2100 – x%

etc.

The final stage: we put extensive and intensive indicators in the table.

Tasks for independent work

Task 1.

Surgical service bed capacity Irkutsk region in 2012.

Bed profile	Abs. number of beds	Extensive indicator	Indicator (per 10,000)
Surgical for adults
Surgical for children
Neurosurgical
Thoracic
Cardiac surgery
Vascular
Traumatological
Traumatological children
Burns
Urological
Oncological

Calculate the extensive and ratio index. The population of the region is 2,780,341, the number of children is 645,810.

Task 2.

The population of the Irkutsk region in 2012 was 2,780,341 people; including: men – 1,333,808, women – 1,446,533;

working age – 1,633,060;

number of doctors – 8,009;

number of beds – 24,649.

Calculate the extensive indicator and the ratio indicator (per 10,000 population).

Task 3.

In the region of the B-N region in 2012, the population was 100,000 people, 1,700 people were born, 600 people died. Among the deceased children under the age of 1 year – 45 people, including children who died under 1 month. – 24 people

In the maternity hospitals of the region: 1,700 people were born alive, 30 people were stillborn, children died within 1 week - 20 people.

Among the children who died under the age of 1 year (45), 20 people died from pneumonia, 5 people died from gastrointestinal diseases, 15 people died from newborn diseases, 5 people died from other causes.

Calculate indicators of extensiveness and intensity.

Task 4.

Number of deaths from myocardial infarction in city N:

Age in years	Population	Number of deaths from myocardial infarction
70 and older

The number of hospital beds for cardiac patients in the city N is 1,050. Calculate the indicators: extensive, intensive, ratios.

Task 5.

The population in city N in 2012 was 60,000 people.

The number of hospital beds for infectious patients in the city N is 45

Registered cases of infectious diseases - 433 cases.

of which: Infectious hepatitis – 110

Acute dysentery – 65

Brucellosis – 14

Pseudotuberculosis – 18

Salmonellosis – 84

Incidence rates of infectious hepatitis in N in previous years:

2010 – 173.8 2011 – 172.5

Calculate indicators: extensive, intensive, ratios, visibility (for 2011–2012).

Task 6.

The population in city N in 2012 was 100,000 people.

Number of visits to outpatient clinics – 800,000

Number of doctors in city N – 300

Number of hospital beds – 1,300

Of these, oncological – 21, gynecological – 128

The number of doctors per 10,000 population in the city of N in previous years: 1960 – 10.1; 1970 – 12.0; 1980 – 14.0; 1990 – 22.7; 2000 – 29.3.

Calculate indicators: extensive, intensive, ratios, visibility (for 1960–2012).

Task 7.

The population of district 1 in 2012 was 100,000 people.

Bed capacity of the united city hospital serving residents of district 1 – 150 beds

Of these: therapeutic – 70, surgical – 80.

Cases of medical treatment due to illness have been registered. assistance from area residents to the clinic of the united hospital – 121,900.

Incidence according to appeal in region 1 for previous years: 2009 – 1,320‰; 2010 – 1,400‰; 2011 – 1,220‰.

Calculate indicators: extensive, intensive, ratios, visibility (for 2009–2012).

Task 8.

Among those examined, increased arterial pressure in different climatic regions was identified in:

Calculate the indicators: extensive - the proportion of those identified from each region in relation to total number identified, intensive – level (per 100,000) incidence of hypertension by region.

Distribution
millionaire cities in Russia
by their rank and size

At the beginning of the twentieth century. German researcher Felix Auerbach, analyzing empirical data on the ratio of population of different cities, came to the conclusion that the population of any city depends on its rank, that is, its place in a number of cities in the country, economic region, administrative unit. Auerbach's research was not widely known in the community of geographers. However, through a short time a similar pattern was identified by sociologist George Zipf (in another transcription - Zipf). This pattern is called the “Zipf rule” or the “rank-size” rule. This rule can be defined as follows: the population of each city tends to be equal to the population of the city itself large city system divided by serial number of this city in a ranked series, or convey the formula:

r - rank of a given city,
N r - population of a city of rank r,
N 1 - population of the largest city.

Thus, if the population of the largest city (city of rank 1) of a hypothetical country is 1 million people, then the estimated population of the 2nd city is 500 thousand people, the 3rd - 333 thousand people, the 4th - 250 thousand people, on the 5th - 200 thousand people. etc.
It should be noted that Zipf's rule was put forward for ideal urban systems, that is, those located in a homogeneous geographical space - on an endless plain, with the same population density, the same for everyone transport links. In reality, not a single urban system in the world corresponds to the rule, but if it is close to the mathematically calculated hypothetical model, then it is considered more formed and balanced. Above is the distribution graph largest cities Russia in terms of their rank and size. Note that only two of the first 13 cities rank fairly close to those modeled by Zipf. These are St. Petersburg (rank 2, really 2 times smaller than Moscow: 5 million compared to 10 million) and Rostov-on-Don (rank 10, population close to 1 million people). Cities of ranks 3-9 (from Novosibirsk to Chelyabinsk) have significantly “sagged”; they have a smaller population than expected by Zipf. Moreover, they are not going to grow in order to give balance to the system: in the period since the 1989 census, all of them, except Kazan, have been losing population. During the years of the USSR, when the number of millionaires now included those from abroad in Kyiv, Minsk, Baku, and Tashkent, this failure was less noticeable. Cities of ranks 11-13 and below, on the contrary, are larger than needed according to the ideal scheme.

R – rank of a given city nr – population of a city of rank r N1 – population of the largest city. Zipf's rank-size rule: if the territory is a holistic economic region, the population of the nth largest city is 1/n the number of inhabitants of the largest city in the territory. Nr=N1/r, where.

Slide 8 from the presentation "Population in cities". The size of the archive with the presentation is 2730 KB.

Geography 11th grade

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