World's Best Scientists 2026 revealed!
VIEW LIST
Dene E. Ryan

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Chemistry 65 7673 162 122 14887
Biology and Biochemistry 66 8676 154 125 15498

Dene E. Ryan publications per year

The chart shows the history of publications by Dene E. Ryan between 1972 and 2011, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Dene E. Ryan published across 40 years, from 1972 to 2011, averaging 3.1 papers a year. Output peaked at 14 publications in 1982. 1 of the 125 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1972 to 2011. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 1982. 1972: 2 publications 1973: 4 publications 1974: 4 publications 1975: 9 publications 1976: 4 publications 1977: 6 publications 1978: 4 publications 1979: 9 publications 1980: 7 publications 1981: 5 publications 1982: 14 publications 1983: 11 publications 1984: 12 publications 1985: 7 publications 1986: 7 publications 1987: 7 publications 1988: 6 publications 1989: 0 publications 1990: 1 publication 1991: 1 publication 1992: 0 publications 1993: 3 publications 1994: 0 publications 1995: 1 publication 1996: 0 publications 1997: 0 publications 1998: 0 publications 1999: 0 publications 2000: 0 publications 2001: 0 publications 2002: 0 publications 2003: 0 publications 2004: 0 publications 2005: 0 publications 2006: 0 publications 2007: 0 publications 2008: 0 publications 2009: 0 publications 2010: 0 publications 2011: 1 publication
1972 2011

125 publications in total across all disciplines

View publications per year as a table
Dene E. Ryan: publications per year, 1972 to 2011
Year Publications
1972 2
1973 4
1974 4
1975 9
1976 4
1977 6
1978 4
1979 9
1980 7
1981 5
1982 14
1983 11
1984 12
1985 7
1986 7
1987 7
1988 6
1989 0
1990 1
1991 1
1992 0
1993 3
1994 0
1995 1
1996 0
1997 0
1998 0
1999 0
2000 0
2001 0
2002 0
2003 0
2004 0
2005 0
2006 0
2007 0
2008 0
2009 0
2010 0
2011 1
Total 125
Download as CSV

Dene E. Ryan publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Dene E. Ryan sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 121–140 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 122 publications — 6th percentile

6% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918 122
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
Download as CSV

Dene E. Ryan D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Dene E. Ryan sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 64–65 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 65 D-Index — 58th percentile

58% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731 65
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
Download as CSV

Overview

Dene E. Ryan is affiliated with Roche (Switzerland) in Switzerland. Their career is primarily connected to this institution, indicating involvement in research and development activities within the pharmaceutical or life sciences sector.

There is no publicly available information regarding recent papers authored by Dene E. Ryan, including titles, years of publication, or venues. Similarly, no frequent co-authors have been identified, and there are no data concerning publication venues with multiple contributions.

Data on book publications or the specific publishers involved in such works are not present for this researcher. Additionally, there is no detailed information on main fields or subfields of study, nor are there identified topics that characterize their scientific contributions in a quantifiable manner.

No awards or recognitions have been documented for Dene E. Ryan.

This profile is based solely on the available verified data, focusing on affiliation and the absence of other detailed publication or topic information.

Best Publications

  • An improved staining procedure for the detection of the peroxidase activity of cytochrome P-450 on sodium dodecyl sulfate polyacrylamide gels.

    Paul E. Thomas;Dene Ryan;Wayne Levin

  • Separation and characterization of highly purified forms of liver microsomal cytochrome P-450 from rats treated with polychlorinated biphenyls, phenobarbital, and 3-methylcholanthrene.

    D E Ryan;P E Thomas;D Korzeniowski;W Levin

  • Purification and characterization of hepatic microsomal cytochrome P-450

    Dene E. Ryan;Wayne Levin

  • Regio- and stereoselective metabolism of two C19 steroids by five highly purified and reconstituted rat hepatic cytochrome P-450 isozymes.

    Alexander W. Wood;Dene E. Ryan;Paul E. Thomas;Wayne Levin

  • Induction of two immunochemically related rat liver cytochrome P-450 isozymes, cytochromes P-450c and P-450d, by structurally diverse xenobiotics.

    P E Thomas;L M Reik;D E Ryan;W Levin

  • PCBs: structure-function relationships and mechanism of action.

    Stephen Safe;Stelvio Bandiera;Tom Sawyer;Larry Robertson

  • Immunochemical Quantitation of Cytochrome P-450 Isozymes and Epoxide Hydrolase in Liver Microsomes from Polychlorinated or Polybrominated Biphenyl-treated Rats A STUDY OF STRUCTURE-ACTIVITY RELATIONSHIPS*

    A Parkinson;S H Safe;L W Robertson;P E Thomas

  • Regulation of three forms of cytochrome P-450 and epoxide hydrolase in rat liver microsomes. Effects of age, sex, and induction.

    P.E. Thomas;L.M. Reik;D.E. Ryan;W. Levin

  • Characterization of a major form of rat hepatic microsomal cytochrome P-450 induced by isoniazid.

    D E Ryan;L Ramanathan;S Iida;P E Thomas

  • Characterization of three highly purified cytochromes P-450 from hepatic microsomes of adult male rats.

    D E Ryan;S Iida;A W Wood;P E Thomas

  • Hepatic microsomal cytochrome P-450 from rats treated with isosafrole. Purification and characterization of four enzymic forms.

    D.E. Ryan;P.E. Thomas;W. Levin

  • Purification, characterization and regulation of five rat hepatic microsomal cytochrome P-450 isozymes

    D. E. Ryan;P. E. Thomas;L. M. Reik;W. Levin

  • Purification of characterization of a minor form of hepatic microsomal cytochrome P-450 from rats treated with polychlorinated biphenyls.

    Dene E. Ryan;Paul E. Thomas;Wayne Levin

  • Reconstituted Liver Microsomal Enzyme System That Hydroxylates Drugs, Other Foreign Compounds, and Endogenous Substrates VI. DIFFERENT SUBSTRATE SPECIFICITIES OF THE CYTOCHROME P450 FRACTIONS FROM CONTROL AND PHENOBARBITAL-TREATED RATS

    Anthony Y.H. Lu;Wayne Levin;Susan B. West;Martin Jacobson

  • Regulation of cytochrome P-450j, a high-affinity N-nitrosodimethylamine demethylase, in rat hepatic microsomes.

    Paul E. Thomas;Stelvio Bandiera;Sarah L. Maines;Dene E. Ryan

  • Highly purified cytochrome P-448 and P=450 from rat liver microsomes.

    Dene Ryan;Anthony Y.H. Lu;Joseph Kawalek;Susan B. West

  • Preparation of monospecific antibodies against two forms of rat liver cytochrome P-450 and quantitation of these antigens in microsomes

    Paul E. Thomas;Daria Korzeniowski;Dene Ryan;Wayne Levin

  • A simple, non-chromatographic purification procedure for monoclonal antibodies. Isolation of monoclonal antibodies against cytochrome P450 isozymes.

    Linda M. Reik;Sarah L. Maines;Dene E. Ryan;Wayne Levin

  • Liver microsomal expoxide hydrase. Solubilization, purification, and characterization.

    A Y Lu;D Ryan;D M Jerina;J W Daly

  • Preparation of Partially Purified, Lipid-depleted Cytochrome P-450 and Reduced Nicotinamide Adenine Dinucleotide Phosphate-Cytochrome c Reductase from Rat Liver Microsomes

    W. Levin;D. Ryan;S. West;A.Y.H. Lu

  • Multiple Forms of Rat Liver Cytochrome P-450

    Paul E. Thomas;Anthony Y. H. Lu;Dene Ryan;Susan B. West

Frequent Co-Authors

Wayne Levin
Wayne Levin Roche (Switzerland)
Paul E. Thomas
Paul E. Thomas Rutgers, The State University of New Jersey
Anthony Y. H. Lu
Anthony Y. H. Lu Rutgers, The State University of New Jersey
Allan H. Conney
Allan H. Conney Rutgers, The State University of New Jersey
Donald M. Jerina
Donald M. Jerina National Institutes of Health
Haruhiko Yagi
Haruhiko Yagi National Institutes of Health
Dhiren R. Thakker
Dhiren R. Thakker University of North Carolina at Chapel Hill
John E. Shively
John E. Shively City Of Hope National Medical Center
Stephen Safe
Stephen Safe Texas A&M University
Jane M. Sayer
Jane M. Sayer National Institutes of Health

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For students pursuing Chemistry in the USA, there are several interdisciplinary pathways that blend chemistry with forensic science and psychology. One promising route is to explore careers in forensic science, which often require specialized knowledge in chemical analysis and investigative techniques. To better understand the field, you can learn more about careers in forensics and how chemistry skills apply to criminal investigations.

If you’re interested in combining your chemistry background with healthcare or medical examination, consider training to become an autopsy technician. Detailed guidance on the education, salary, and job outlook for professionals can be found in “how to become an autopsy technician”. This role requires a strong foundation in chemistry and biology for effective forensic analysis.

Online education options provide flexibility for students aiming to enter forensic science fields. Numerous affordable programs are available, including online forensic science courses that cover essential skills such as chemical evidence evaluation and crime scene investigation.

For those seeking advanced qualifications, pursuing an online master's in forensic psychology can open doors to specialized roles that merge scientific inquiry with psychological expertise, further expanding career possibilities beyond traditional chemistry roles.

Best Scientists Citing Dene E. Ryan

Paul E. Thomas

Paul E. Thomas

Rutgers, The State University of New Jersey

Publications: 59

Franz Oesch

Franz Oesch

Johannes Gutenberg University of Mainz

Publications: 56

Donald M. Jerina

Donald M. Jerina

National Institutes of Health

Publications: 53

Costas Ioannides

Costas Ioannides

University of Surrey

Publications: 49

F. Peter Guengerich

F. Peter Guengerich

Vanderbilt University

Publications: 46

Minor J. Coon

Minor J. Coon

University of Michigan–Ann Arbor

Publications: 46

Stephen Safe

Stephen Safe

Texas A&M University

Publications: 45

Fevzi Daldal

Fevzi Daldal

University of Pennsylvania

Publications: 43

David J. Waxman

David J. Waxman

Boston University

Publications: 42

Haruhiko Yagi

Haruhiko Yagi

National Institutes of Health

Publications: 37

Harry V. Gelboin

Harry V. Gelboin

National Institutes of Health

Publications: 37

Wayne Levin

Wayne Levin

Roche (Switzerland)

Publications: 37

Andrew Parkinson

Andrew Parkinson

University of Kansas

Publications: 36

Allan H. Conney

Allan H. Conney

Rutgers, The State University of New Jersey

Publications: 34

Charles S. Lieber

Charles S. Lieber

Icahn School of Medicine at Mount Sinai

Publications: 29

John B. Schenkman

John B. Schenkman

University of Connecticut Health Center

Publications: 29

Related Chemistry Rankings & Guides

2027 Can You Get a Forensic Science Degree Master's Without a Related Bachelor's Degree?

2027 Can You Get a Forensic Science Degree Master's Without a Related Bachelor's Degree?
2027 Forensic Science Degree Coursework Explained: What Classes Can You Expect to Take?

2027 Forensic Science Degree Coursework Explained: What Classes Can You Expect to Take?
2027 Is Demand for Forensic Science Degree Graduates Growing or Declining?

2027 Is Demand for Forensic Science Degree Graduates Growing or Declining?
2027 Online Chemistry Degree Programs Costs: Tuition & Fees

2027 Online Chemistry Degree Programs Costs: Tuition & Fees
2027 How Fast Can You Get a Chemistry Degree Online?

2027 How Fast Can You Get a Chemistry Degree Online?
2027 How Much Does a Forensic Science Degree Program Cost? Tuition, Fees & Total Expense Breakdown

2027 How Much Does a Forensic Science Degree Program Cost? Tuition, Fees & Total Expense Breakdown
2027 Biotechnology Careers: Guide to Career Paths, Options & Salary

2027 Biotechnology Careers: Guide to Career Paths, Options & Salary
2027 Fastest Online Forensic Science Degree Programs You Can Finish in Under 2 Years

2027 Fastest Online Forensic Science Degree Programs You Can Finish in Under 2 Years
2027 How Fast Can You Get a Forensic Science Degree Online?

2027 How Fast Can You Get a Forensic Science Degree Online?
2027 How to Become a Crime Scene Photographer: Education, Salary, and Job Outlook

2027 How to Become a Crime Scene Photographer: Education, Salary, and Job Outlook
2027 How to Become a Medicolegal Death Investigator: Education, Salary, and Job Outlook

2027 How to Become a Medicolegal Death Investigator: Education, Salary, and Job Outlook
2027 How to Become a Medical Examiner: Education, Salary, and Job Outlook

2027 How to Become a Medical Examiner: Education, Salary, and Job Outlook
2027 How to Become a Coroner: Education, Salary, and Job Outlook

2027 How to Become a Coroner: Education, Salary, and Job Outlook
2027 Credit Requirements for a Forensic Science Degree Explained

2027 Credit Requirements for a Forensic Science Degree Explained

Recently Published Articles

2027 Accredited Online Criminal Justice Degree Programs With No GRE or GMAT Requirements

2027 Accredited Online Criminal Justice Degree Programs With No GRE or GMAT Requirements
2027 Most Popular Concentrations in Adult Gerontology Primary Care Nurse Practitioner Degrees

2027 Most Popular Concentrations in Adult Gerontology Primary Care Nurse Practitioner Degrees
2027 How to Become a Program Manager: Salary & Career Paths

2027 How to Become a Program Manager: Salary & Career Paths
2027 Fashion Design Degree Master's Programs Accepting Students Now

2027 Fashion Design Degree Master's Programs Accepting Students Now
2027 Online Christian Counseling Doctorate Programs for Experienced Professionals Without Research Backgrounds

2027 Online Christian Counseling Doctorate Programs for Experienced Professionals Without Research Backgrounds
2027 Surgical Tech Degree Jobs That Do Not Require Licensure

2027 Surgical Tech Degree Jobs That Do Not Require Licensure
2027 Admission Requirements for Aerospace Engineering Degree Master's Programs: GPA, Prerequisites, and Acceptance Criteria

2027 Admission Requirements for Aerospace Engineering Degree Master's Programs: GPA, Prerequisites, and Acceptance Criteria
2027 BSN to DNP vs MSN to DNP: What's the Difference?

2027 BSN to DNP vs MSN to DNP: What's the Difference?
2027 Public Health Specializations for Health Promotion Careers

2027 Public Health Specializations for Health Promotion Careers
2027 MBA vs. Master's in Nurse Educator: Which Drives Better Career Outcomes

2027 MBA vs. Master's in Nurse Educator: Which Drives Better Career Outcomes
2027 Best Online Political Communication Degree Master's Programs for Career Changers

2027 Best Online Political Communication Degree Master's Programs for Career Changers
2027 Highest Level of Information Technology Degree You Can Achieve: Academic Progression Explained

2027 Highest Level of Information Technology Degree You Can Achieve: Academic Progression Explained
2027 Are There Any One-Year Online Teaching Degree Programs Worth Considering?

2027 Are There Any One-Year Online Teaching Degree Programs Worth Considering?
2027 Best Accredited Online Web Design Bachelor's Degree Programs

2027 Best Accredited Online Web Design Bachelor's Degree Programs
2027 Part-Time vs. Full-Time Bioinformatics Degree Programs

2027 Part-Time vs. Full-Time Bioinformatics Degree Programs
2027 Credit Requirements for a Pharmacy Degree Explained

2027 Credit Requirements for a Pharmacy Degree Explained
2027 How to Get a PsyD Degree in Clinical Psychology

2027 How to Get a PsyD Degree in Clinical Psychology
2027 Forensic Biologist Careers: Skills, Education, Salary & Job Outlook

2027 Forensic Biologist Careers: Skills, Education, Salary & Job Outlook
2027 How to Become a Substance Abuse Counselor in New Hampshire

2027 How to Become a Substance Abuse Counselor in New Hampshire
2027 Online Organizational Leadership Degree Master's Programs with No GRE or GMAT Requirements

2027 Online Organizational Leadership Degree Master's Programs with No GRE or GMAT Requirements
2027 Security Management Degree vs. Certificate: Which Should You Choose?

2027 Security Management Degree vs. Certificate: Which Should You Choose?