If you must read JEMS and EMS Mag, at least pull up the references from other journals to see if you get the same information. Sometimes the authors of these magazines tend to put their own interpretation of the research article and totally miss the point.
Here are some other journals you might check out. Some of the articles found in these journals can at least give you an idea for what you might want to learn more about.
Prehospital Emergency Care
http://www.informaworld.com/smpp/title~content=t713698281
Resuscitation - European Journal - see what other countries are doing. RESUSCITATION is the official Journal of the European Resuscitation Council. It is also interesting to look up what and who makes up EMS in another country when you do find an interesting article.
Signup and you will at least be able to see the abstracts.
http://www.resuscitationjournal.com/
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
http://www.sjtrem.com/
Emergency Medicine Journal (EMJ)- an international peer review journal covering pre-hospital and hospital emergency medicine, and critical care.
http://emj.bmj.com/
Here's an interesting article about studying oxygen and AMIs.
http://emj.bmj.com/content/27/4/283.abstract
Objective To explore the feasibility of conducting an RCT of oxygen versus air in AMI, by exploring the beliefs of UK professionals who treat patients with AMI about oxygen's benefits, and to establish a baseline of reported practice by asking about their use of oxygen.
Conclusion Widespread belief in the benefit of oxygen in AMI may make it difficult to persuade funders of the importance of this issue and health professionals to participate in enrolling patients into a trial in which oxygen would be withheld from half their patients.
We had the same situation in the U.S. when studying how much oxygen to use for neonatal resuscitation. Telling parents their baby won't or didn't get oxygen if resuscitation is or was required can be a little unnerving.
Journal of Emergencies, Trauma, and Shock - another international journal. Some of the articles are available in full as well as abstract.
http://www.onlinejets.org/
The Journal of Emergency Medicine
The official journal of the American Academy of Emergency Medicine
- abstracts can be read
http://www.jem-journal.com/
One of my favorites:
Respiratory and Critical Medicine
http://ajrccm.atsjournals.org/
Abstracts are available for all and full articles are available for older issues.
This will give some an idea about how indepth critical care medicine is.
Another favorite of mine:
Journal of Respiratory Diseases - just when you thought your EMT textbook taught you everything about COPD.
http://jrd.consultantlive.com/home
One more good journal:
Respiratory Care Journal
http://www.rcjournal.com/
Full articles available from older issues.