Turkay Yildiz

14 Questions 8 Answers 0 Followers

Questions related from Turkay Yildiz

Does your institution pay you in case you publish your research in some of the leading journals?

In Turkey, there is such a system of payment (awarding) for supporting researches published in some of the SCI/SSCI indexed journals. See the attachment. I would be happy to hear if there is such...

05 March 2014 1,825 47 View

Do you know any full feature proprietary software free for academic institutions, students, labs, etc.?

The software should not be a trial version. It should be proprietary software and its full features should be freely available for use in academic institutions. For instance, I know of a program...

09 December 2013 1,603 5 View

Which statistical analysis could be performed to measure the progress of countries' performances with few columns?

My data has only 3 columns. These columns are year_2012, year_2010, year_2007. These columns are about measurements performed in various years (2012, 2010, 2007). Rows are countries (~150...

02 December 2013 2,421 3 View

Why do renewable energy policies fail in Turkey and in many other countries?

Turkey will be building 50 to 86 coal plants and 3 nuclear power plants. November 4, 2013 - CEE Bankswatch Network: "Between 50 and 86 new coal plants are planned to be built in Turkey over the...

21 November 2013 1,464 4 View

What are the underlying reasons for saving factor scores with different methods, as such Anderson-Rubin scores, Bartlett scores, etc?

In its final solution, factor analysis creates one new variable for each factor. These variables can be saved using methods namely Anderson-Rubin, Bartlett scores, regression, etc. I prefer...

19 November 2013 1,212 5 View

What are the advantages and disadvantages of fully automated container terminals?

Fully automated container terminals are utilizing only unmanned terminal vehicles and using automatic stacking (AS) and retrieval systems (RS) for container storage, and many other automated...

19 November 2013 958 12 View

Which optimization software or tools would you use to solve real life supply chain or logistics problems?

By putting into practice of optimization methods and implementing optimal solutions, many operational problems can be solved. However, real life problems are more complicated than the...

19 November 2013 1,024 7 View

Why do the newly designed container ships still require time-consuming handling equipments such as cranes in the berthing areas?

WHat do you think about a vessel that is designed to discharge and load all of the containers by utilizing a shifting pallet system that does not require handling equipment in the berthing...

19 November 2013 9,954 3 View

Why do you think some countries' logistics performance scores are not in line with their GDP per capita values?

The GDP per capita plays an important role in determining a country’s logistics performance. There is a moderately strong relationship between all logistics performance indicators and GDP. This...

18 November 2013 211 1 View

Which statistical methods should be used to test the distribution of a small or large sample?

In some cases, I encountered different results from some normality tests. For instance, in one of my samples, Shapiro–Wilk normality test indicated that my data varies significantly from a normal...

15 November 2013 8,156 14 View

Is there any alternative to the ridge regression method?

In my model, I experience a multicollinearity problem in least squares estimation. Therefore, I decided to use the ridge regression method. I examined the variance inflation factors (VIFs). In...

15 November 2013 9,676 3 View

What are the key logistics performance areas on which government policies need to focus in order to increase outcomes?

Developing countries spend a much higher proportion of GDP on transport and logistics than developed countries. Moreover, previous studies have demonstrated the connection between logistics...

15 November 2013 6,623 0 View

Which statistical method should be used to investigate the relationship between two sets of numerical variables?

My data consist of two sets. First set has 6 numerical variables (columns) and the second set has 16 numerical variables (columns). These two sets have ~150 rows. Any suggestions?

14 November 2013 7,224 13 View

Is it possible to predict the overall logistics performance score of a country by knowing that country's GDP per capita and vice-versa?

Here are my equations: Y = (a + b*ln(X))^2 or X = exp((Y^(1/2)-a)/b) Y is the GDP per capita in US$, X is the overall logistics performance score. Take a = -244.29 and b = +327.83 Please take a...

13 November 2013 2,363 0 View