On the possible values of upper and lower derivatives with respect to differentiation bases of product structure.

A solution of the Guzm\ue1n's problem on possible values of upper and lower derivatives is given for the class of translation invariant and product type differentiation bases formed by ndimensional intervals. Namely, the bases from the mentioned class are characterized, for which integral means of a summable function can boundedly diverge only on a set of zero measur

On the Almost Everywhere Convergence of Multiple Fourier-Haar Series

The paper deals with the question of convergence of multiple Fourier-Haar series with partial sums taken over homothetic copies of a given convex bounded set W⊂R+n containing the intersection of some neighborhood of the origin with R+n. It is proved that for this type sets W with symmetric structure it is guaranteed almost everywhere convergence of Fourier-Haar series of any function from the class L(ln+L)n−1

PREDICTORS OF POST-TRAUMATIC STRESS DISORDER IN MILITARY PERSONNEL DEPLOYED TO PEACEKEEPING

BACKGROUND The following study shows that PTSD, depression and anxiety present actual and urgent problem in military field. These disorders appear to be highly co-morbid that results in much more complicated treatment process and outcome. Service members of Georgian armed forces participate in various international peacekeeping operations on the regular basis, though there are no researches conducted so far to provide evidence for mental health problem prevalence in Georgian deployed military personnel. METHOD Collection of the data took place during the period of 2014–2015 years after six months of service members returning from the international peacekeeping mission back to their homes. The sample for this research were represented by 2799 servicemen who actively engaged in ISAF peacekeeping missions. All of them were male, with average age: M=29.3 (SD=6.3). The data for the following research were collected using self-administered assessment measures, namely PCL-5 for PTSD screening and PHQ for depression and Anxiety and somatic complaints assessment. RESULTS PTSD appeared to be significantly predicted by range/level of anxiety and depression symptom urgency, nevertheless after joint/combine integration of these variables in one regressional equation, just symptoms of depression remained as statistically reliable explanatory factor for the significant percentage of the somatic symptom range variation. CONCLUSION It would be wise to recommend mental health care specialists particularly to bear in mind the possibility of co-existing depression and anxiety symptoms in patients with PTSD.Stress-related psychiatric disorders across the life spa