KRUPANSKY, Circuit Judge.
The plaintiff-appellant, Dr. Mark J. Kelly (“Kelly”), has assailed the trial court’s award of summary judgment to his former employer, defendant-appellee Lambda Research. Inc. (“Lambda”), by which his amended complaint stating claims arising under federal and state law was dismissed with prejudice. On review, Kelly has contested only the district judge’s dismissal of his employment retaliation and constructive wrongful discharge causes of action founded respectively in the Ohio Whistle-blower Statute and Ohio public policy.
During July 1998, Kelly, a Ph.D. research chemist, began working in Lambda’s Cincinnati x-ray diffraction laboratory, designated “Lab II.” In December 1998, Lambda elevated Kelly to Lab II Supervisor. The Lab II employees, including Kelly, conducted research and gathered experimental data concerning the physical properties and capabilities of materials and technical components for diverse commercial, academic, and governmental customers, including the nuclear power industry. At the time of Kelly’s retention by Lambda, its sole shareholder and managerial principal, Paul Prevey (“Prevey”), informed the plaintiff that Lambda’s practices conformed to all prevailing high-tech industry standards. However, shortly after the plaintiffs promotion to management, he began to suspect either that certain of Lambda’s written standard operating procedures failed industry norms, or that Lambda’s employees often inadequately adhered to the company’s internally-developed written procedures, thereby risking inaccuracies in test results.
Nevertheless, during approximately his first year of employment with the defendant, Kelly remained mute concerning his unverified suspicions of past and ongoing defective readings caused by deficient laboratory procedures. In June 1999, his superior Prevey conducted Kelly’s inaugural formal written performance evaluation. Prevey praised Kelly for his management skills, responsiveness to training, practical knowledge of x-ray diffraction, and future productive potential.
During that same month, a Lab II technician. Chris Barger (“Barger”), performed routine x-ray diffraction crystallographic texture analyses on three zirconium alloy pipe cladding specimens, [537]*537which consisted of segments detached from sheets or tubes composed of heavy metallic insulating foil designed to encase nuclear fuel lines, for General Electric’s Nuclear Division (“GEND”). If the laboratory results reflected capabilities within the expected range, the subject zirconium foil tubing material would be installed on fuel rods in industrial nuclear reactors at commercial power plants, which function as delivery conduits for enriched uranium fuel pellets.1 However, after reviewing Lambda’s June 10, 1999 laboratory report, a GEND employee. Charles McKinney, concluded that one critical piece of research datum — the “pole figure” measurement — for zirconium tube specimen no. 986985-01 was flawed, which in turn distorted the texture analysis result. He requested that Lab II investigate its experimental data extracted from that studied exemplar. Kelly’s subsequent inquest exposed Lambda’s lab technician’s neglect to adhere to Lambda’s pertinent written testing procedure 3P1066.02, in that, prior to testing, he misapplied contact cement and epoxy to secure the sample to the glass mounting surface. Consequently, Barger had failed to ensure that the examined sample remained flat on the mounting glass plate during testing, which had skewed the research data. When properly re-tested according to the defendant’s standard written procedure, the tubing sample in controversy yielded results within the expected range. Subsequently, on June 10, 1999, via a letter accompanied by a research report, Lambda reported to GEND that its initial anomalous result had been the product of “sample mounting error” committed by the technician.
Although the GEND incident was evidently attributable to a detected human error which had been corrected, Kelly nonetheless concluded that Lambda’s written standard operating procedures for the “pole figure” testing of zirconium tubing might be inherently flawed, and thus could yield, or in the past may have yielded, unreliable data in any instance, irrespective of the technician’s verbatim adherence to Lambda’s procedural instructions. In the complainant’s opinion, those procedures, which required “sample flatness” to be within 0.002 inches but which did not specify any technique for measuring flatness beyond visual inspection, did not, as a practical matter, demand adequate sample flatness, because zirconium foil tubing tends to “buckle” and thence become “wavy” and/or “rough” if not properly flattened and stabilized; and further because, in his words, “I can’t tell what flatness to within 0.002 inches looks like.”
Consequently, Kelly worried that an unknown number of past zirconium alloy test measurements may have been misleading because of such flatness irregularities which potentially had been undetected and/or uncorrected irrespective of the company’s application of its standard testing procedures. In turn. Kelly feared that some nuclear reactor’s fuel line wrapped with unidentifiable misanalyzed zirconium foil tubing might someday pose a significant public safety hazard and/or menace to human health, should a malfunction cause a toxic radiation leak, because he knew that some of GEND’s past purchase orders for zirconium tube testing (but not the May 1999 GEND service order for the tube testing at issue) had displayed a nu[538]*538clear safety warning.2 See generally 10 C.F.R. 21 (codifying the NRC’s regulations governing the “Reporting of Defects and Noneompliance” by suppliers of materials and services to the nuclear power industry).
Accordingly, in July 1999, Kelly recommended to Prevey that GEND be notified of his concerns, so that the customer could evaluate possible risks and/or consider corrective alternatives. Prevey instructed Kelly to memorialize the zirconium testing issue and his corrective recommendation(s) in a written internal Quality Assurance Incident Report (“QA Report”). Kelly completed his QA Report on July 16, 1999, through which he again advised Prevey that Lambda should, among other things, alert GEND that its past “pole figure” texture analysis research data on zirconium insulation specimens might be unreliable. Kelly further opined that such an advisory was compelled by 10 C.F.R. 21. He also suggested that the technicians should not rely solely on eyesight to verify that a sample is pressed and cemented completely flat on the glass plate testing surface: rather, “a measurement or verifiable criteria for surface flatness” should be established to avoid distortions in the test readings.
However, Prevey redacted Kelly’s report by striking his recommendation that Lambda inform GEND that all of its previously-furnished “pole figure” data collected in past zirconium texture analyses was questionable; Prevey instead substituted his own handwritten notation to the effect that GEND had already been notified that Lambda had collected atypical textural data in the past because of a sample mounting deficiency.3 Prevey also deleted Kelly’s recommendation that Lambda’s sample mounting procedures be improved, but he retained Kelly’s advisory that Lambda’s technicians and engineers should receive additional training to ensure that they execute the standard procedures properly.
Thereafter, Kelly produced a second QA Report, dated August 26, 1999, concerning the June 1999 incident involving GEND specimen number 986985-01. He reiterated therein his observations and recommendations concerning the “sample flatness” procedural question. Kelly testified that Prevey became enraged when presented with his August 26, 1999 report, and de[539]*539manded, in high-decibel language punctuated by profanity, to know why his modifications to Kelly’s July QA Report were not reproduced in Kelly’s August report. According to Kelly, when he explained that, contrary to the statement added by Prevey to the July 1999 report. GEND in fact had never been apprised of the long-term procedural “sample flatness” testing problem, but instead had been alerted only to the unrelated “ninety-degree-rotation” issue, Prevey firmly instructed Kelly not to expend any more company time on his flatness-perfection crusade, nor to discuss the matter with anyone under penalty of dismissal.
The plaintiff has claimed that, following his August 1999 confrontation with Prevey, Prevey’s behavior towards him deteriorated, in that he regularly demeaned and antagonized Kelly, and allegedly threatened to discharge him because of various unrelated incidents. Unbeknownst to Kelly until revealed by litigation discovery, on September 6 and 14, 1999. Prevey added two critical memoranda to Kelly’s personnel file. On September 28, 1999, Prevey conducted Kelly’s second annual routine performance review. Prevey reduced Kelly’s quality marks in eight of thirteen evaluative categories. Kelly has further averred that, also in September 1999, Prevey threatened to shoot him if he persisted in his campaign to pressure Lambda into notifying GEND of his personal conclusion that Lambda had used substandard “pole figure” testing techniques for an extended period, although Kelly has conceded that he believed that Prevey was speaking figuratively and had not intended in September 1999 to menace him with literal gunshot-inflicted death or bodily harm.
On September 12, 1999, without Prevey’s knowledge and contrary to his orders, Kelly wrote to the United States Nuclear Regulatory Commission (“NRC”) to express his safety concerns stemming from his conviction that Lambda’s standard “pole figure” testing procedures for zirconium covering tubes were sufficiently faulty to yield unreliable results, and that Lambda was illegally concealing that problem from its clients. Thereafter, Kelly spoke by telephone on at least two occasions (September 30 and October 9, 1999) with NRC investigators, and met on October 27, 1999 with an NRC agent for a personal interview.
Subsequently, the NRC consulted two technical experts in the zirconium texture analysis field, both of whom concluded “that texture analysis, alone, cannot be used to determine the intrinsic mechanical properties of zirconium-based tubing material. Rather, as one expert suggested, texture analysis can be used to estimate mechanical properties relative to certain directions of the tubing (e.g., the results of a texture analysis may show that the tensile strength of the tube in the axial direction is larger, or smaller, than the tensile strength in the radial direction).”
On December 16, 1999, the NRC mailed to Kelly its comprehensive report and analysis of its investigative findings, coupled with a cover letter which summarized its conclusions. Among other things, the cover letter recited:
Based on our review and the information obtained from the experts, we believe that the problems with Lambda Research texture analysis may be attributed to poor control of specimen preparation and texture analysis procedures. Further, we believe that texture analyses, in general, cannot be used to inadvertently qualify unacceptable material. The intrinsic mechanical properties of zirconium-based tubing material cannot be determined from texture analysis. Therefore, we have concluded that errors resulting from the texture analysis [540]*540at Lambda Research in the development of engineered components is not a safety concern. NRC did not pursue the issue further since we determined it is not a safety concern.
The NRC’s letter advised Kelly that “[u]n-less the NRC receives additional information that suggests our conclusions should be altered, we plan no further action on this matter.”
Kelly had no further contact with the NRC thereafter. Nonetheless, without evident justification, the plaintiff remained steadfast in his conviction that Lambda’s testing procedures invited research data errors which could ultimately affect the safety of nuclear fuel rods.4 However, [541]*541Kelly remained silent on the matter between the end of September 1999 and February 16, 2000. On the latter date, Marie Marawi (“Marawi”), the defendant’s new Quality Assurance Manager, tendered a revised edition of Kelly’s August 26, 1999 incident report for his signature. That version was absent the two recommendations which had most offended Prevey, namely that GEND should be informed of possible data distortions and inaccuracies in all of Lambda’s zirconium texture research results, and that Lambda’s testing procedures should be revised to correct chronic potential sample-flatness irregularities.5
The following day, February 17, 2000, Prevey met with Kelly to discuss the sanitized report. Kelly claimed that, when he refused to execute that allegedly misleading document, an enraged Prevey “got into [his] face” in a physically intimidating manner, accused Kelly and his staff of deliberately sabotaging lab test results, and announced that all salaries in Lab II would be “frozen.” Subsequently, on February 18, 2000, Prevey inserted two additional negative performance evaluations into Kelly’s file, although the plaintiff did not know of their existence until they were later produced in discovery.
Also on February 18, 2000, Prevey reassigned some of Kelly’s supervisory duties to Dr. Glavicic. The plaintiff surmised that Prevey intended soon to remove him from management. Kelly testified that, over the ensuing days, Prevey continually criticized his performance, and leveled angry accusations of malfeasance and nonfeasance against him. Assuming that he would soon be confronted with the alternatives of either signing the edited and purportedly deceptive QA Report, or resigning his position. Kelly, on the evening of February 24, 2000, prepared an employment resignation letter. The following day. February 25, 2000, Prevey demanded that Kelly execute the revised QA Report immediately, without altering any part of its text. Ultimately, Prevey permitted Kelly to examine its contents for one hour. Upon the expiration of that interval, Kelly tendered Prevey his resignation letter in lieu of the signed incident report.
On August 15, 2000, the plaintiff instituted a five-count diversity complaint against Lambda.6 by which he alleged Ohio law (1) employment retaliation in offense to the [542]*542State Whistleblower Act, (2) constructive discharge and other retaliatory employment discipline contrary to state public policy, (3) intentional infliction of emotional distress, (4) breach of contract, and (5) misrepresentation. On January 31, 2001, Kelly lodged his first amended complaint, by which he added a sixth cause of action, for averred infringement of the federal Lanham Act. 15 U.S.C. § 1125 (creating a private right of action against persons who misrepresent certain facts in a commercial context). Following the close of discovery, the defendant moved for summary judgment on all counts. See Fed.R.CivJP. 56. After full briefing, the district judge, on December 4, 2001 granted that motion.7 and dismissed each cause of action with prejudice. On January 2, 2002, Kelly noticed a timely appeal.
On review, the plaintiff has assailed only the dismissal of his first and second causes [543]*543of action, namely for (1) retaliation in employment in violation of the Whistleblower Statute, and (2) constructive discharge and other retaliatory employment discipline in violation of Ohio public policy. Because those claims lie within the federal diversity jurisdiction, this court adheres to Ohio substantive law. including the published edicts of the Ohio Supreme Court. See, e.g., Rousey v. United States, 115 F.3d 394, 397 (6th Cir.1997) (instructing that only published dispositions of the forum state’s highest Court bind federal courts as precedential case law in diversity actions; by contrast, intermediate state court decisions constitute, at most, “relevant data” to be considered by the federal court along with a host of other materials if the state’s highest Court has not resolved the pertinent question, thus requiring the federal court to “predict” how the state Supreme Court would decide the issue).
The Ohio Whistleblower Law provides:
If an employee becomes aware in the course of the employee’s employment of a violation of any state or federal statute or any ordinance or regulation of a political subdivision that the employee’s employer has authority to correct, and the employee reasonably believes that the violation either is a criminal offense that is likely to cause an imminent risk of physical harm to persons or a hazard to public health or safety or is a felony, the employee orally shall notify the employee’s supervisor or other responsible officer of the employee’s employer of the violation and subsequently shall file with that supervisor or officer a written report that provides sufficient detail to identify and describe the violation. If the employer does not correct the violation or make a reasonable and good faith effort to correct the violation within twenty-four hours after the oral notification or the receipt of the report, whichever is earlier, the employee may file a written report that provides sufficient detail to identify and describe the violation with the prosecuting authority of the county or municipal corporation where the violation occurred, with a peace officer, with the inspector general if the violation is within the inspector general’s jurisdiction, or with any other appropriate public official or agency that has regulatory authority over the employer and the industry, trade, or business in which the employer is engaged.
Ohio Rev.Code § 4113.52(A)(1)(a).
Subsection (B) of section 4113.52 posits, inter alia, that except in cases of employee “bad faith” (developed below), “no employer shall take any disciplinary or retaliatory action against an employee for making any report authorized by division (A)(1) or (2) of this section, or as a result of the employee’s having made any inquiry or taken any other action to ensure the accuracy of any information reported under either such division.” Ohio Rev.Code § 4113.52(B). That subsection further specifies that “disciplinary or retaliatory action by the employer” includes:
(1) Removing or suspending the employee from employment:
(2) Withholding from the employee salary increases or employee benefits to which the employee is otherwise entitled;
(3) Transferring or reassigning the employee;
(4) Denying the employee a promotion that otherwise would have been received:
(5) Reducing the employee in pay or position.
Id.
Ohio law creates a civil cause of action for an employee who can prove that he or she satisfied all the requisite elements of [544]*544predicate “whistleblower” status, and further that his or her employer subsequently disciplined or retaliated against him or her in a legally material manner “as a result of the employee’s having filed a report under division (A) of this section.” Ohio Rev. Code § 4113.52(D); see also § 4113.52(E). However, if the employee had failed to exert “a reasonable and good faith effort to determine the accuracy of any information reported under division (A)(1) or (2) of this section ... the employee may be subject to disciplinary action by the employee’s employer, including suspension or removal, for reporting information without a reasonable basis to do so under division (A)(1) or (2) of this section.” Ohio Rev. Code § 4113.52(C).
“In order for an employee to be afforded protection as a ‘whistleblower,’ such employee must strictly comply with the dictates of R.C. 4113.52. Failure to do so prevents the employee from claiming the protections embodied in the statute.” Contreras v. Ferro Corp., 73 Ohio St.3d 244, 652 N.E.2d 940, 941 (1995) (syllabus). (Emphasis added).
Kelly’s evidence, when construed in the light most favorable to his case, cannot carry that demanding burden. Even assuming arguendo, without deciding, that the plaintiff has sufficiently evidenced acts of employment discipline and/or retaliation which fit into categories forbidden by the Whistleblower Act, virtually all of the significant acts of discipline or retaliation allegedly imposed by Lambda against Kelly, including those related to the February 17, 2000 confrontation between Prevey and Kelly, the February 18, 2000 re-assignment of certain of Kelly’s erstwhile Lab II supervisory duties to Glavicic, and the plaintiffs February 25, 2000 alleged constructive discharge.8 all occurred after Kel[545]*545ly had received and studied the NRC’s December 16, 1999 report and letter by which that agency had articulated its final conclusion, based upon the carefully considered opinions of expert scientists and engineers experienced “in texture analysis from a fuel cladding design perspective” (see note 4 above), that absolutely no safety hazards were posed by Lambda’s alleged practices which Kelly had faulted.
In light of that undisputed evidence and Kelly’s admissions that the NRC’s conclusion alleviated his “immediate fears,” no reasonable jury could find that, on and after approximately December 16, 1999, the plaintiff reasonably believed that Lambda’s practices, which had been the target of his complaints to management and his “whistleblower” report to the NRC, were risking human safety. After approximately December 16, 1999 (and arguably prior to that date). Kelly indisputably was not protected when Lambda took the alleged retaliatory and disciplinary actions of February 2000 against him which were triggered by Kelly’s continuing post-December 1999 engagement in “whistleblower”-related activities.
Kelly has protested that Lambda had retaliated against him, and/or disciplined him. for his allegedly protected activity prior to December 16, 1999. when he at least arguably possessed a good faith belief that Lambda’s zirconium cladding analysis procedures may have violated criminally-sanctioned federal safety regulations and thus may have threatened future physical harm to persons, see Fox v. Bowling Green, 76 Ohio St.3d 534, 668 N.E.2d 898 (1996) (syllabus); and therefore his “whistleblower” claim should proceed to trial to that extent. However, Kelly has produced no evidence of any pre-December 16,1999 retaliation or discipline by the defendant of a kind which could even debatably satisfy Ohio Rev.Code § 4113.52(B).
Instead, at best, the record reflected that prior to December 16, 1999, Prevey may have (1) treated Kelly rudely or with hostility because of Kelly’s obsession with the alleged inadequacy of Lambda’s steps to secure zirconium cladding specimens in a perfectly flat state during testing, (2) added two memoranda to his personal file without Kelly’s knowledge which criticized Kelly’s handling of the matter, and (3) reduced Kelly’s formal annual performance ratings in September 1999 relative to his prior annual review because of Kelly’s preoccupation with the “sample flatness” issue. Trivial episodes of unpleasantness or admonition, or other de minimis employment actions, standing alone, cannot supply legally sufficient evidence of actionable material discipline or retaliation, even if they were arguably impelled by protected activity. See, e.g., Ford v. General Motors Carp., 305 F.3d 545, 553 (6th Cir.2002) (explaining that an “adverse employment action” in the Title VII context requires an adverse alteration in a significant term or condition of employment, such as “termination of employment, a demotion evidenced by a decrease in wage or salary, a less distinguished title, a material loss of benefits, significantly diminished material responsibilities, or other indices that might be unique to a particular situation.”) (quoting Hollins v. Atlantic Co., 188 F.3d 652, 662 (6th Cir.1999)); see also Kocsis v. Multi-Care Management, Inc., 97 F.3d 876, 886 (6th Cir.1996).
Accordingly, the trial court’s adverse summary adjudication of Kelly’s “whistle-blower” cause of action was legally compelled on the subject record, because the plaintiff had proffered insufficient evidence that the defendant had materially punished [546]*546him for having undertaken any activity protected by that statute.9
For the same reasons, Kelly’s state-law claim for employment discharge or discipline in violation of Ohio public policy must be summarily rejected, because, during trial court proceedings, the plaintiff had buttressed that claim solely by reference to the state public policy advanced by the Whistleblower Statute. See Kulch v. Structural Fibers. Inc., 78 Ohio St.3d 134, 677 N.E.2d 308, 328-29 (1997). As developed above, as a matter of law, the plaintiff could not prove that the defendant violated the Whistleblower Act. Nevertheless, Kelly has argued that the legislatively-safeguarded public policy protecting whistleblowers from retaliatory discharge or discipline supports his common law cause of action irrespective of his inability to satisfy the technical elemental requirements of the Whistleblower Statute.10
The plaintiffs assertion was ill formulated. In the case instanter, the evidence, when construed most favorably for Kelly, could not support a finding that, at the time that Kelly sustained his alleged material punishments for his “whistleblower” activities-namely his post-December 16, 1999 employer admonitions, release from supervisory duties, and alleged ultimate [547]*547constructive discharge — that he was protected either by the letter or the spirit of the state public policy undergirding the Whistleblower Law. As evolved herein, by February 2000, when the alleged employer’s serious acts of discipline and retaliation, as well the plaintiffs actions which had incited those responses, took place, Kelly knew that his conduct was not substantively protected by the Whistleblower Act. Ohio public policy does not protect an uncooperative employee who unjustifiably complains to management or the authorities about non-existent employer misconduct; to the contrary, Ohio law expressly stipulates that such recalcitrant employees may lawfully be disciplined or discharged. See Ohio Rev.Code § 4113.52(C).
Therefore, even assuming, without deciding, that, in a proper case, an Ohio plaintiff could prosecute a public policy claim for wrongful dismissal or discipline animated by his or her “good faith” “whistleblower”-like activities even if he or she failed to fulfill all substantive technical requisites of Whistleblower Act protection, on the rationale that sound public policy is advanced by encouraging “good faith” whistleblowing, Kelly’s public policy cause of action nonetheless must be discarded, because, on the subject evidentiary record, it is beyond controversy that Kelly objectively lacked any “good faith” contemporaneous belief that his actions which precipitated his alleged discipline actually furthered the broader Ohio public policy encompassed by the Whistleblower Statute.11
Accordingly, the district court’s final summary judgment dismissing Kelly’s claims against Lambda is AFFIRMED.