Statement:
In Kazakhstan scientists published more significant scientific articles than in Uzbekistan

In the Citatable Scientific Publications rating Kazakhstan holds position #68 ²⁰²¹ out of 206 and Uzbekistan is #78 out of 206 ²⁰²¹.
Position of Kazakhstan is better than position of Uzbekistan.

Referencies:

1. Citatable Scientific Publications ²⁰²¹ by Scimago Journal & Country Rank

   The countries in the rating sorted by 'Citable documents' in descending order.

   Kazakhstan	'Citable documents' value is	5,585
   Uzbekistan	'Citable documents' value is	2,978