gis4cuny

The role of GIS in cancer epidemiology would be interesting.  The geographic pattern of cancer is so different. For example, nasopharyngeal carcinoma is common in Southern China. Recently I met Chinese girl from Henan province(northern part) . We had brief conversation on her province and health condition. I remembered, while reading epidemiology of  esophagus cancer, we had mentioning of Henan province. Probably, it has to do with p53 gene mutation, which is more common in indigenous population of Henan!

Just by clicking on  the add button (which is plus sign has reverse yellow triangle at base). By clicking on it, one can add the desired layer after browsing the files in computer.

Here we can change the order of layer, color of layer, outline  and width of the layer . It will be set.

I browsed this very useful data of cancer mortality from

http://ratecalc.cancer.gov/ratecalc/

This website I found very useful for cancer mortality. I can have data in excel forms. I can use it for various softwares , and even with GIS.

Incidence of Nasopharyngeal carcinoma is very high in Southern China and Northern Africa (Qui et al 2011). We can map epidemiological data with GiS. We can convert tabular tendencies into trends and beautiful maps. It goes well with government as well, because GiS is good at following administrative boundaries. Accurate mapping with GiS would help in identifying priority areas in light of prevention and treatment.As we travel from Southern China to north, incidence of NPC decreases. We can direct rediotherapy and chemotherapy or both together for patients according to need. On the basis of MAP LEGENDS, new cancer center, or chemotherapy center or reditherapy centyers can be started. Yesterday , I was following Malaysian news, and 71 year old nasopharyngeal cancer patient was turned down by hospital authority. So sad to know that (Daily Express , Malaysia2013).

Qiu C, Yang N, Tian G, Liu H. Weight loss during radiotherapy for nasopharyngeal carcinoma: a prospective study from northern China. Nutr Cancer. 2011;63(6):873-9.

     GiS for business 

What is GiS::: in my poor English I would say.. It is display of data beautifully in the form of map..it is the language of cartographer.

Now I will introduce you to data types in GiS:
1) attribute data ,which is for example in dBase file
2) map data which is in shape file(shp)

Types of map:  dot density map,thematic map, bivariate thematic map,

Projections:  Rbinson, Mercatur, Albers Conformal

Scale which I never try to understand during GiS course, but now after reading I got bit of it. It’s type of ai would say analogy. It is the ratio of distances of object represented on the map to the actual distances of those objects on the earth.

TIGER:  topologically integrated geographic encoding and referencing system

giS application in business:
Employee demographics
Strategic planning
Decision making

GiS for retail business:

Understand geography and study people’s relationship to location…

Take any basic map from census and add layers

GiS in retail business:
Integrate, view and analyze data.
Retail business constitute:  site selection, market analysis, distribution, delivery and management of facilities in relation to geography.

What is the beauty of GiS in light of retail business??

Companies are able to consider many possibilities
Companies can understand the potential,of investment in certain location,
Companies can analyze changing trends with GiS

Area of high demand
Area of high visual exposure

Any business to start, need to focus on three important factors..

1) operations: inside the wall of the business holding building.( customer service)
2) area surrounding
3) location: demographies, traffic counts, consumer demand, transport system etc

The new businessman comes with concept. In view of retails in mind, he thinks of chain. He might use quantitative methodology for concerned business.

Role of ArCGiS business analyst: he can help in comparing sites..

Correlation:  sales revenues as dependent variable.

Sometimes businessperson come with idea of opening the new site not far from existing site, example of cannibalization.

Gravity model??

Multiple regression analyst:
Of course , in business,  profit is dependent variable.
GiS can help in predicting the sales potential of prospective sites.

Time is the worst enemy of multiple regression model

ArcGIS  business analyst use community Tapestry to profile customers.

The term “choroplethe map” was introduced 1938 by the geographer John Wright in “Problems in Population Mapping”. (source, wikipedia). It is the communication between cartographer and audiences. It explains rates, densities and proportions, I think this is the point where GiS researchers and Epidemiologist have fun together

\Here right clicking on the layer, then properties ”general tab and ranming the layers help. One should be familiar with ‘insert’.

Already mentioned in previous post about attribute tables: we have to go to attributwe tables and then add field ..

New HIV cases per thousand population. New breast cancer cases per thousand population in the Queens.

Now i am really impressed with GiS software, how elegantly it gives histogram here…

How can we beautify map?  yes, give its color, give it new name…

How??

Go to the layer, and then to properties, symbology..quantities..bla bla bla.. you can see magic happening on the computer screen. You are giving new clothes to map…

Shift key , we know, used most often for caps lock.

click

“Since Shift is a modifier key, it can also be used in conjunction with the mouse.. For example, many programs will allow you to select more than one item by holding down the Shift key and clicking multiple items on the screen. It can also be used to select a section of text by clicking in one spot, holding Shift, then clicking in another spot. Finally, Shift is sometimes used for keyboard shortcutsthat perform common commands. For example, Control+S is the standard “Save” shortcut, while “Control+Shift+S” is typically used for “Save As…”

This word I got to know only last semester. My frind visited my home, and said,” Asif, please get rid of all these clutter on your table?” Yes, my table was really messed up, full of journal articles. not arranged in proper way.

The same word is here in GiS… there can be “clutter’ while working with GiS. We can get rid of it.

Where is Mauritania, does it do with Mauritus?? haha..

Mauritania is west African country…

Here is a question!!

Is attribute table the key for connecting to GiS to other software such as SPSS, SAS, Stata or SUDAN???

When we click right on the layer, we get attribute table in dropping menu.. and then we get the excel file, I mean required data for the concerned layer. Isn’t it fun???

Select by attributes remind me of SPSS, when we use less than or more than while recoding for new variables.