POWER OF ATTORNEY

I, Shaker Sadasivam, do hereby make, constitute, designate and appoint
Jeffrey W. Acre and D. Mark McMillan, and each of them and their designees
or substitutes, as my true and lawful Attorney-in-Fact, for me and in my
name and on my behalf generally:

1. To execute and file any and all forms required to be filed by me with the
U.S. Securities Exchange Commission ("SEC") pursuant to Section 16 of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), including
Forms 3, 4, and 5, and any amendment thereto;

2. To do and perform any and all acts which may be necessary or desirable to
prepare, complete, and execute any and all forms required to be filed by me with
the SEC) pursuant to Section 16 of the Exchange Act, including Forms 3, 4, and
5, and any amendment thereto, and timely deliver and file such forms or
amendments with the SEC and any stock exchange or similar authority; and

3. To take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of either such attorney-in-fact, may be of
benefit to, in the best interest of, or legally required by, me, it being
understood that the documents executed by either such attorney-in-fact on my
behalf pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as either such attorney-in-fact may approve
in either such attorney-in-fact's discretion.

I hereby grant to each such attorney-in-fact full power and authority to do and
perform any and every act and thing whatsoever requisite, necessary, or proper
to be done in the exercise of any of the rights and powers herein granted, as
fully to all intents and purposes as I might or could do if I was personally
present, with full power of substitution or revocation, hereby ratifying and
confirming all that each such attorney-in-fact, or each such attorney-in-fact's
substitute or substitutes, shall lawfully do or cause to be done by virtue of
this Power of Attorney and the rights and powers herein granted.

I acknowledge that each of the foregoing attorneys-in-fact, in serving in such
capacity at my request, is not assuming nor relieving any of my responsibilities
to comply with Section 16 of the Exchange Act.

I also acknowledge that none of the foregoing attorneys-in-fact assume (i) any
liability for my responsibility to comply with the requirements of the
Exchange Act, (ii) any liability for my failure to comply with such
requirements, or (iii) any of my obligations or liabilities for profit
disgorgement under Section 16(b) of the Exchange Act.

This Power of Attorney shall be effective immediately upon execution and shall
be revoked by my giving to any such attorney-in-fact acting hereunder written
notification of the revocation, which notice shall
not be considered binding unless actually received.

I hereby declare that this Power of Attorney shall not be affected by my
disability or incapacity and that as against me and all persons claiming under
me, everything which any such attorney-in-fact shall do
or cause to be done shall be valid and effectual in favor of any person claiming
a benefit thereunder, who, before the doing thereof, shall not have had notice
of revocation of this instrument.

IN WITNESS WHEREOF, I have caused this Power of Attorney to be executed this
16th day of August, 2016.


GRANTOR:


	/s/ Shaker Sadasivam

Printed Name:  	Shaker Sadasivam