Dr. Matthew Barlow

Title: Associate Professor of Physiologist

Office Location: Roosevelt Science Center (RH), Room 201
Phone: 575.562.2543
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Vitae: Vitae


  • Doctorate of Philosophy (Integrative Physiology)
  • January 2006-December 2008 University of North Texas Health Science
  • Masters of Biomedical Science
  • August 2002-May 2005 University of North Texas Health Science
  • Bachelor of Science in Biology
  • 1994-1999 University of New Mexico


Dr. Barlow is an Associate Professor in the Department of Biology. He joined the faculty in 2010 after completing work as a Post-Doctoral Researcher in Dr. David Proctor?s Vascular Aging and Exercise Laboratory, at Noll Labs of the Pennsylvania State University.

The focus of Dr. Barlow?s current studies focuses on the regulation of muscle blood flow during acute exercise, and how this changes with advancing age and in the development of Diabetes. Current projects include study of age-related changes in neuro-humoral and endothelial control of muscle blood flow at rest and during acute exercise in the pathological development of Obesity through Metabolic Syndrome and Diabetic complications of the cardiovascular system. Additional studies include the early detection of cognitive deficits linked to metabolic disease in the health disparate populations of the rural southwestern US. My research is currently funded by the NIH New Mexico IDeA Networks of Biomedical Research Excellence (NM-INBRE P20GM10345) The project is titled ?Ethnic and age effects of vascular responses in women with Metabolic Syndrome.? Dr. Barlow?s lab is also researching the return to play testing of Post-Concussive Syndrome in both minor (age 10-17) as well as competitive college athletes. The development of new tests including the use of multi-task performance and neurophysiological symptoms of concussion.

Dr. Barlow teaches Anatomy and Physiology (BIOL 209 and 210) with laboratories (BIOL 209L and 210L) for majors, Basic Anatomy and Physiology (107 and 108), Neurobiology (BIOL 433), and Medical Physiology (BIOL 424, 424L).

Research Interests

Post-concussion Neuro-cognitive and Physiological evaluation and testing


Dual Task Testing

Autonomic regulation of the Cardiovascular System in Post-concussive athletes

Cardiovascular Physiology

Aging and metabolism effects on cognition and blood flow

Cardiovascular health disparities in hypertension, diabetes and metabolic syndrome

Control of the Skeletal muscle blood flow by the sympathetic nervous system

Cardiovascular preconditioning of exercise training

Opioid receptor control of cardiovascular physiology

Opioid modulation of neurotransmitter release

Huie Brown

Title: Science Technician

Office Location: Science Building (S), Room 207
Phone: 575.562.2462
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Dr. Youngkoo Cho

Title: Professor of Plant Biology

Office Location: Roosevelt Science Center (RH), Room 202
Phone: 575.562.4048
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


  • Ph.D. South Dakota State University 1997
  • M.S. University of Arizona 1993
  • B.S. Chonbuk National University 1979


I teach the following courses: General Biology I (BIOL 154), General Biology II (BIOL 155), General Botany (BIOL 216/L), Genetics (BIOL 304/L), Plant Systematics (BIOL 410/510/L), Plant Structure and Function (BIOL 420/520/L), Environment, Resources, and Policy (BIOL 417/516), etc.

Research Interests

One of our interests is to understand genetic and biochemical mechanisms of abiotic (water, drought, salt, etc.) stress responses and seed vigor in plants including legume family. This is ultimately for developing stress tolerant (transgenic) crops, which are adapted to semi- and dry regions. Other studies focus on identification of abiotic stress responsive genes, and characterization and mapping of the genes to further study gene regulation and expression in plants, and to use stress associated genes to develop stress-resistant cultivars.

Our research interests also include genetics and agronomy of seed quality and leaf characteristics, growth regulator effects on growth characteristics, accumulation of nicotinic acid betaine (trigonelline; TRG) under stress environments, mapping quantitative traits loci (QTLs) associated with foliar TRG accumulation, and planting date effects on grain yield.

Dr. Kenwyn Cradock

Title: Associate Professor, Entomologist

Office Location: Roosevelt Science Center (RH), Room 310
Phone: 575.562.2078
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


  • Ph.D. The Ohio State University 2005 (Entomology)
  • M.S. University of KwaZulu-Natal, South Africa 1998 (Plant Pathology)
  • B.S. University of KwaZulu-Natal, South Africa 1995 (Entomology and Plant Pathology)


ENMU is the recipient of a US Dept. of Education HSI STEM grant of which I am the director. The grant aims to improve the awareness and preparation of high school students for STEM degrees and careers, along with providing resources and opportunities to undergraduate students in the STEM fields.

Research Interests

The focus of my research is the management of vector-borne diseases while minimizing the impact on non-target organisms. While in South Africa I investigated the use of cultural techniques (resistant varieties, mulches) to manage non-persistently transmitted viruses (specifically Potyviridae vectored by aphids) in vegetable crops (specifically zucchini). My research at The Ohio State University focused on the potential of an entomopathogenic fungus (Beauveria bassiana) as a management agent of the American dog tick (Dermacentor variabilis) and the lone star tick (Amblyomma americanum). These studies included evaluation under laboratory and field conditions, and the impact of infection on tick water-balance, an important component of off-host tick survival.

In addition, my current research includes the study of arthropod diversity in New Mexico and Forensic Entomology. I have research projects that continue the investigation of tick management strategies and the understanding of off-host unfed tick biology, the insect fauna associated with decomposition in eastern New Mexico, and in science education.

Dr. Zhiming Liu

Title: Professor of Molecular Biology

Office Location: Roosevelt Science Center (RH), Room 102
Phone: 575.562.2495
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


  • Education Ph.D. Texas Tech University 1994
  • M.S. University of Washington 1990
  • B.S. Shanghai Ocean University 1982


I teach the following courses: BIOL 154 General Biology I, BIOL 222 Cell Biology, BIOL 380 Endocrinology, BIOL 425/525 Molecular Biology, BIOL 427/527 Developmental Biology, BIOL 492 Undergraduate Seminar and BIOL 528 Biotechnology. Some courses are offered once every two years.

Research Interests

My research interests span several disciplines including reproductive physiology, and cell and molecular biology. Graduate students in my laboratory study physiological regulation of fruit cracking in Chinese jujube (Ziziphus jujuba), and molecular mechanisms of seed abortion in an endangered tree species (Davidia involucrate).

We also study the effects of endocrine-disrupting chemicals on gene expression, steroid production, and ovulation of an amphibian species (Xenopus laevis). Our research projects are funded by the National Institutes of Health (NIH), Eastern New Mexico University (ENMU), and other agencies.

Dr. Ivana Mali

Title: Assistant Professor of Wildlife Biology

Office Location: Roosevelt Science Center (RH), Room 213
Phone: 575.562.2723
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Vitae: Vitae


  • Education Ph.D. Texas State University 2014 (Aquatic Resources)
  • M.S. Texas State University-San Marcos 2010 (Wildlife Ecology)
  • B.S. Henderson State University 2008 (Biology)


The courses I teach are: Introduction to Wildlife and Fisheries Sciences (BIOL 110), Herpetology (BIOL 411/511), Mammalogy (BIOL 431/531), Landscape Ecology and GIS (BIOL 460/560), Onithology (BIOL 442/542), Wildlife Management, etc.

Research Interests

Broadly, my research interest is wildlife ecology and management. I am interested in studying vertebrate communities (primarily small mammals, birds, and herpetofauna) in desert and prairie grasslands, and using museum collections to understand patterns of species distributions. Understanding how animal populations respond to various direct and indirect anthropogenic pressures in these declining environments is crucial in applying proper conservation actions. I also continue to work on freshwater turtle conservation, particularly western river cooter (Pseudemys gorzugi) and ornate box turtles (Terrapene ornata). My previous research has focused mainly on freshwater turtle management and ecology. My research topics have included reproductive ecology, testing field sampling biases, movement ecology, and developing new techniques to monitor movement. I have also contributed more broadly to global issues by evaluating freshwater turtle sustainability under anthropogenic pressures such as road density, harvest, and efficacy of management regimes.

Dr. Darren Pollock

Title: Professor of Entomology

Office Location: Roosevelt Science Center (RH), Room 311
Phone: 575.562.2862
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Office Hours: M & W 1:30-2:30: T 1:30-4:30


  • Education Ph.D. University of Alberta 1994
  • M.Sc. University of Manitoba 1988
  • B.S.A. University of Manitoba 1985


I am the invertebrate zoologist in the Department of Biology, and I teach the following courses: General Biology I (BIOL 154), General Biology II (BIOL 155), Invertebrate Zoology (BIOL 300/L), General Entomology (BIOL 301/L), Parasitology (BIOL 341/L), Evolution and Systematics (BIOL 305), Biological Literature (BIOL 582), and Evolution (BIOL 562). I am also the head curator of collections, and curator of invertebrates, of the ENMU "Dr. Antonio 'Tony' Genaro Natural History Museum".

Research Interests

My research deals with the taxonomy, ecology, systematics, and biogeography of insects, specifically beetles of the large superfamily Tenebrionoidea and (recently begun) robber flies of the family Asilidae. My beetle work involves a combination of larval and adult morphological characters to elucidate phylogenies and classifications of taxa of interest. For the robber flies, I?m interested in prey selection, as well as basic, alpha-level taxonomy. I would not, however, restrict graduate students to work on these particular insects; students are encouraged to work on a taxon of their own interest.

At present, my research is collection-based, and involves use of external characters of larvae, pupae and adults. Because the beetle families on which I work are fairly small, I can work at the world level, and include all known taxa; this gives a very complete evolutionary picture of these beetle families. For robber flies, I?m most interested in fully documenting the local, i.e. eastern New Mexico, biodiversity. I am also interested in general biodiversity, specifically the role that systematists play in documenting the world's invertebrate fauna.

Irene Roselli

Title: Lecturer of Biology

Office Location: Roosevelt Science Center (RH), Room 111
Phone: 575.562.2174
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


  • M.S. Eastern New Mexico University 2007 (Applied Ecology)
  • B.S. New Mexico Institute of Mining and Technology 2004 (Biology)


I teach Biology for General Education (BIOL 113/113L) online.

Research Interests

My teaching and research interests are in the fields of animal behavior and ecology. During my graduate career, I used aquatic animals as model systems to study the influence of predators on life history strategies.

Laura Smart

Title: Department Secretary

Office Location: Roosevelt Science Center (RH), Room 111
Phone: 575.562.2936
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Dr. Manuel Varela

Title: Professor of Biology

Office Location: Roosevelt Science Center (RH), Room 101
Phone: 575.562.2464
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Vitae: Vitae


  • Postdoctoral Fellow, 1994-1997, Harvard Medical School - under Thomas H. Wilson, Microbial Physiology
  • Ph.D., 1994, University of New Mexico - under Jeffrey K. Griffith, Biomedical Sciences ? Biochemistry & Molecular Biology
  • M.S., 1989, University of New Mexico, Biomedical Sciences
  • B.A., 1987, University of New Mexico, Biochemistry


Manuel Varela is a native New Mexican, born and raised in Santa Fe. As a Ph.D. student at UNM, Varela studied antibiotic resistance and found evidence for the functional role of an amino acid sequence motif that?s highly conserved in antibiotic efflux pumps. After graduation, Varela went to Harvard as a postdoctoral fellow and studied the lactose permease from Escherichia coli in the laboratory of Prof. Thomas Wilson. While at Harvard, Varela taught first-year medical students in a course Chemistry and Biology of a Cell and helped discover an intra-helical salt bridge. Varela returned to New Mexico as a faculty at ENMU to teach microbiology and conduct research on bacterial transporters and antibiotic resistance. Since promotion to professor in 2008, Dr. Varela has published 16 primary papers in peer-refereed journals, plus 5 review articles and 8 book chapters; his laboratory also determined the complete genome sequence of a non-O1 Vibrio cholerae bacterium.

Publications website:

Research Interests

The Varela research laboratory is interested in molecular microbial physiology of bacterial resistance to antimicrobial agents. We study bacterial multidrug efflux pumps from the major facilitator superfamily of solute transporters. Our laboratory discovered the multidrug efflux pumps LmrS from Staphylococcus aureus and EmrD-3 from Vibrio cholerae. We also collaboratively determined the complete genome sequence of a non-O1 V. cholerae genome. We are always interested in outstanding graduate students to work in our lab and to complete their MS theses.

About ENMU, Portales

Students choose Eastern New Mexico University for our personal touch, accredited academic programs and affordable costs. ENMU offers a variety of services to help students succeed in their academic, personal and professional lives. That's why our slogan is "Student Success–that's what it's all about!"