Which is more counterproductive: a brief delay or 'start anyway'?

Blood lead level in opium abuse. Which is more dangerous? Opium smoking or opium ingestion?

Social Support or Organizational Support: Which One Is More Predictive of Job Burnout in workers?

  Introduction: Social and organizational supports are effective factors closely related to job burnout and Due to the limited studies in this area on Iranian workers, this study aims to determine the predictability of social support and organizational support in  job burnout for workers in Yazd. Methods: This cross-sectional study was carried out among 200 textile workers in Yazd through str...

Which Is More Prominent in Recurrent Hydatidiform Mole, Ovum or Sperm?

Recurrent hydatidiform mole is defined as episodes of two molar pregnancies in a female. Often, complete moles onlyderive androgenic nuclear genome. We described two cases with repeated molar pregnancies attempted to preventfuture episodes by performing intracytoplasmic sperm injection (ICSI) and preimplantation genetic diagnosis (PGD)to assess genetic disorders. The first pat...

Which Metric Is More Appropriate to Evaluate Researchers?

Iranian medical universities choose their best researchers in each field annually. The protocols of this process have been modified quite often, but the changes were not fundamental and did not lead to all-inclusive evaluation tools. The recent article in Asia Pacific Journal of Medical Toxicology, which proposes a scoring scale for evaluation of scientist's impact called "360-degree researcher...

Which stage of mouse embryos is more appropriate for vitrification?

Objective Vitrification has been shown as one of the most effective methods of cryopreservation for mammalian embryos. However, there is no consensus which stage of embryonic development is the most appropriate for vitrification with subsequent maximal development after thawing. This study was carried out to explore and compare the effect(s) of vitrification on mouse 2-cell, 4-cell, 8-cell, mor...