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Full-Text Articles in Medicine and Health Sciences

Parasites Of Four Endemic Plethodon From Arkansas And Oklahoma, Chris T. Mcallister, Charles R. Bursey, Stanley E. Trauth Jan 2002

Parasites Of Four Endemic Plethodon From Arkansas And Oklahoma, Chris T. Mcallister, Charles R. Bursey, Stanley E. Trauth

Journal of the Arkansas Academy of Science

No abstract provided.


Coccidian Parasites (Apicomplexa: Eimeriidae) Of Select Rodents Of Western And Southwestern Arkansas And Northeastern Texas, Chris T. Mcallister, Joshua E. Kessler Jan 2002

Coccidian Parasites (Apicomplexa: Eimeriidae) Of Select Rodents Of Western And Southwestern Arkansas And Northeastern Texas, Chris T. Mcallister, Joshua E. Kessler

Journal of the Arkansas Academy of Science

No abstract provided.


Characterization Of A PorosTm-Fumonisin B1 Affinity Column For Isolating Ceramide Synthase From Rat Liver, S. Jernigan, W. B. Melchior Jr., G. R. Jenkins, K. L. Rowland, D. W. Roberts, P. C. Howard, H. Tolleson Jan 2001

Characterization Of A PorosTm-Fumonisin B1 Affinity Column For Isolating Ceramide Synthase From Rat Liver, S. Jernigan, W. B. Melchior Jr., G. R. Jenkins, K. L. Rowland, D. W. Roberts, P. C. Howard, H. Tolleson

Journal of the Arkansas Academy of Science

Fumonisin B1 is a mycotoxin produced by fungi of the genus Fusarium, common pathogens of corn and other grain plants. Toxic effects associated with fumonisin B1 include equine leukoencephalomacia, porcine pulmonary edema, rat renal carcinoma, and murine hepatocellular carcinoma. Increased risk for esophageal cancer in humans has been epidemiologically associated with consumption of corn contaminated with Fusarium, suggesting that fumonisin B1 may be involved. The biological effects of fumonisin B1 exposure result primarily from disruption of de novo sphingolipid biosynthesis via inhibition of ceramide synthase. Exposure of animals or cultured cells to fumonisin B1 results in the characteristic accumulation of …


Distribution Of Leconte's Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, With Notes On Reproduction And Natural History, David A. Saugey, D. Blake Sasse, J. D. Wilhide, Drew Reed, Tammy R. Jones, Darrell R. Heath, Daniel R. England Jan 2001

Distribution Of Leconte's Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, With Notes On Reproduction And Natural History, David A. Saugey, D. Blake Sasse, J. D. Wilhide, Drew Reed, Tammy R. Jones, Darrell R. Heath, Daniel R. England

Journal of the Arkansas Academy of Science

During the past 20 years (1982-2001) we have studied the biology, occurrence and distribution of LeConte's (Brazilian) free-tailed bat, Tadarida brasiliensis cynocephala, in Arkansas. Colonies and individuals were reported from man made structures only. Four new county records have been documented since 1988, extending the range from the central part of the state to Arkansas's northern-most tier of counties. Numerous nuisance maternity colonies were investigated during exclusion activities and one, year-round colony provided the majority of reproductive data. A total of 152 free-tailed bats was submitted to the Arkansas Department of Health Rabies Laboratory (1982-2001); most during February through April, …


Clinostomum Marginatum (Yellow Grub) Metacercaris In Black Bass From The Caddo River In West Arkansas, James J. Daly Jr., H. Michael Matthews, Randal J. Keller, James J. Daly Jan 1999

Clinostomum Marginatum (Yellow Grub) Metacercaris In Black Bass From The Caddo River In West Arkansas, James J. Daly Jr., H. Michael Matthews, Randal J. Keller, James J. Daly

Journal of the Arkansas Academy of Science

Seventy-two bass (Micropterus-spp.), mostly smallmouth, were collected from three areas of the Caddo River in west Arkansas and examined for the presence of Clinostomum marginatum metacercariae. Prevalence, mean abundance, and abundance for all fish were 68%, and 4.2 ±6.5, and 30, respectively. Fish from the upstream area near the headwaters were more heavily infested than those from further downstream. A gill/total body larval ratio of seven, was found for bass from another Arkansas stream, was examined as a predictor for total Clinostomum populations instream bass. Using the formula gill parasites X seven divided by N(72), a value of 3.3 was …


Survey Of Diseases In Wild Turkeys In Arkansas, Wayne E. Thogmartin, James E. Johnson, Bradley A. Schaeffer, Camille C. Ciriano Jan 1999

Survey Of Diseases In Wild Turkeys In Arkansas, Wayne E. Thogmartin, James E. Johnson, Bradley A. Schaeffer, Camille C. Ciriano

Journal of the Arkansas Academy of Science

Nineteen dead wild turkeys were necropsied and 573 live wild turkeys were physically examined for pathological agents in Arkansas between 1992 and 1997 to determine the proximate role disease may play in declining wild populations in Arkansas. Necropsy of the dead wild turkeys identified avian pox and histomoniasis as the most common diseases (16% and 11% of necropsies, respectively). Avian pox was recorded from three major physiographic regions in the state (Ozark Highlands, Ouachita Mountains, Gulf Coastal Plain). One hen died of non-accidental crop impaction, the fifth occurrence observed in the southeastern United States. Another hen died after developing severe, …


Microorganisms Associated With The Carapace And Plastron Of Aquatic Turtles (Pseudemys Concinna And Trachemys Scripta) In Southwestern Arkansas, Renn Tumlison, Sharon Clark Jan 1996

Microorganisms Associated With The Carapace And Plastron Of Aquatic Turtles (Pseudemys Concinna And Trachemys Scripta) In Southwestern Arkansas, Renn Tumlison, Sharon Clark

Journal of the Arkansas Academy of Science

No abstract provided.


Ultrastructure Of Cepedietta Virginiensis (Protista: Haptophrynidae), From The Gall Bladder Of The Pickerel Frog, Rana Palustris, In Arkansas, Chris T. Mcallister, Stanley E. Trauth Jan 1996

Ultrastructure Of Cepedietta Virginiensis (Protista: Haptophrynidae), From The Gall Bladder Of The Pickerel Frog, Rana Palustris, In Arkansas, Chris T. Mcallister, Stanley E. Trauth

Journal of the Arkansas Academy of Science

No abstract provided.


Partial Characterization Of Bacteriophages Of Pseudomonas Syringae Pv.Tomato, Scott M. Minor, Russell O. Nordeen, Chad E. Paschall Jan 1996

Partial Characterization Of Bacteriophages Of Pseudomonas Syringae Pv.Tomato, Scott M. Minor, Russell O. Nordeen, Chad E. Paschall

Journal of the Arkansas Academy of Science

No abstract provided.


Role Of Endophytes In Tall Fescue, E. L. Piper, C. P. West Jan 1993

Role Of Endophytes In Tall Fescue, E. L. Piper, C. P. West

Journal of the Arkansas Academy of Science

Tall fescue (Festuca arundinacea Schreb.) is the most commonly grown cool season grass used for pastures in Arkansas. Most tall fescue contains a fungal endophyte (Acremonium coenophialum Morgan-Jones & Gams), which causes fescue toxicosis in livestock and costs cattle producers millions of dollars annually in lost production. Endophyte presence is known to reduce wild mammal populations in areas where tall fescue is prevalent. The endophyte spends its entire life cycle within the plant and is transmitted through the seed. The association is mutualistic with the plant providing nutrients for the endophyte and the endophyte conferring drought, insect, and nematode resistance …


Effect Of Bacterial Lipopolysaccharide-Induced Fever On The Humoral Response Of New Zealand White Rabbits, Lawrence W. Hinck, Stanley N. David Jan 1992

Effect Of Bacterial Lipopolysaccharide-Induced Fever On The Humoral Response Of New Zealand White Rabbits, Lawrence W. Hinck, Stanley N. David

Journal of the Arkansas Academy of Science

No abstract provided.


Evaluation Of Aposphaeria Amaranthi As A Bioherbicide For Pigweed (Amaranthus Spp.), A. S. Mintz, G. J. Weidmann Jan 1991

Evaluation Of Aposphaeria Amaranthi As A Bioherbicide For Pigweed (Amaranthus Spp.), A. S. Mintz, G. J. Weidmann

Journal of the Arkansas Academy of Science

Studies were conducted to determine the potential of the fungus, Aposphaeria amaranth!, as a bioherbicide for pigweeds (Amaranthus spp.). Experiments to establish the environmental parameters necessary for control of tumble pigweed (A. albus) demonstrated that an 8-hr dew period was sufficient for control of seedlings with four to six leaves, and that temperatures ranging from 20 to 28 C were conducive for disease development. Conidial concentrations as lowas 1x 10s conidia per ml also were sufficient for plant mortality. Host range tests demonstrated pathogenicity of A. amaranthi to several other species of Amaranthus, including biotypes resistant to triazine herbicides. Disease …


Hematozoa Of Common Grackles (Quiscalus Quiscula Versicolor, Vieillot) In Central Arkansas, Arthur A. Johnson Jan 1990

Hematozoa Of Common Grackles (Quiscalus Quiscula Versicolor, Vieillot) In Central Arkansas, Arthur A. Johnson

Journal of the Arkansas Academy of Science

During the years 1977-84, 118 bronzed grackles, Quiscalus quiscula versicolor, Vieillot, of 132 examined were found infected with hematozoa. The eight species of symbionts collected from the infected birds included two microfilarial species (Chandlerella quiscali and Eufilaria hibleri), five apicomplexans (Haemoproteus quiscali, Leucocytozoon fringillinarum, Plasmodium matutinum, P. vaughani, P. sp.) and a flagellate (Trypanosoma ontarioensis). P. matutinum and T. ontarioensis represent new host records and all the protozoans represent new locality records. Comparisons are made of symbiont prevalance and diversity as this relates to seasons of the year, sex and age of the host. Comparisons are also made with previous …


Reported Bat Rabies In Arkansas, Gary A. Heidt, David A. Saugey, Susan R. Bradford-Luck Jan 1987

Reported Bat Rabies In Arkansas, Gary A. Heidt, David A. Saugey, Susan R. Bradford-Luck

Journal of the Arkansas Academy of Science

No abstract provided.


Methemoglobin Reduction In The Presence Of Various Concentrations Of Oxyhemoglobin, Ali Mansouri Jan 1985

Methemoglobin Reduction In The Presence Of Various Concentrations Of Oxyhemoglobin, Ali Mansouri

Journal of the Arkansas Academy of Science

Methemoglobin reduction in human red blood cell is governed by many factors, one of which is the concentration of oxyhemoglobin. Experiments were conducted to determine the inhibition of methemoglobin reduction by oxyhemoglobin under concentrations approaching those in the red cell. Hemoglobin, methemoglobin reductase and cytochrome b₅ were prepared by routine protein purification methods. Methemoglobin reduction was carried out at 37° C in spectrophotometer. It is shown that methemoglobin concentration variation (at least when it is above 1 mM) does not change the reduction rate. Whereas, the ratio of methemoglobin to oxyhemoglobin determines the rate of methemoglobin reduction when all other …


Reported Animal Rabies In Arkansas: 1950-1981, Gary A. Heidt Jan 1982

Reported Animal Rabies In Arkansas: 1950-1981, Gary A. Heidt

Journal of the Arkansas Academy of Science

Reported animal rabies in Arkansas is reviewed for the years 1950-81 . Total cases ranged from 44 in 1969 to 332 in 1979, with a mean of 154. Domestic animals accounted for 72.5% of the total cases until 1961-63 and then declined to 15.8% from 1964-81. This switch from domestic to wildlife rabies corresponded to a similar trend in nationally reported rabies and was probably due to increased public awareness and the vaccination of domestic dogs and cats. Over the 31 year period a total of 18 species of mammals has been implicated in reported rabies (individual species of foxes, …


Hematology As Related To Diving Characteristics Of Elaphe Obsoleta, Nerodia Erythrogaster, Nerodia Fasciata And Nerodia Rhombifera, Dennis A. Baeyens, M. W. Patterson, Chris T. Mcallister Jan 1979

Hematology As Related To Diving Characteristics Of Elaphe Obsoleta, Nerodia Erythrogaster, Nerodia Fasciata And Nerodia Rhombifera, Dennis A. Baeyens, M. W. Patterson, Chris T. Mcallister

Journal of the Arkansas Academy of Science

The diving capabilities of Nerodia erythrogaster flavigaster and Nerodia fasciata confluens were investigated and the results were compared with similar studies on Nerodia rhombifera rhombifera and Elaphe obsoleta obsoleta (Baeyens et al., 1978). In addition, morphological and hematological parameters contributing to underwater survival were examined. The duration of underwater survival for N. erythrogaster and N. fasciata was approximately one hour with no difference between the species. The lung volumes of the two species were also similar but were significantly less than lung volumes reported for E. obsoleta. There were no significant differences in hemoglobin concentration, red blood cell count or …


Proceedings Of The Arkansas Academy Of Science - Volume 24 1970, Academy Editors Jan 1970

Proceedings Of The Arkansas Academy Of Science - Volume 24 1970, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Development Of Pleurotus Ulmarius Fr. Grown In Pure Culture, Delbert Swartz, J. D. Collar Jan 1963

Development Of Pleurotus Ulmarius Fr. Grown In Pure Culture, Delbert Swartz, J. D. Collar

Journal of the Arkansas Academy of Science

No abstract provided.


Further Studies On An Antibiotic Substance Produced By Rhizopus Nigricans Ehrenberg, Kenneth D. Mace, Delbert Swartz Jan 1963

Further Studies On An Antibiotic Substance Produced By Rhizopus Nigricans Ehrenberg, Kenneth D. Mace, Delbert Swartz

Journal of the Arkansas Academy of Science

No abstract provided.


Absence Of Pasteurella Pestis In The Wildlife Of Arkansas, R. Reece Corey, Leo J. Paulissen, Delbert Swartz Jan 1963

Absence Of Pasteurella Pestis In The Wildlife Of Arkansas, R. Reece Corey, Leo J. Paulissen, Delbert Swartz

Journal of the Arkansas Academy of Science

No abstract provided.


List Of The Smut Fungi Of Arkansas, George E. Templeton Jan 1962

List Of The Smut Fungi Of Arkansas, George E. Templeton

Journal of the Arkansas Academy of Science

No abstract provided.


Instructions For Contributors, Academy Editors Jan 1960

Instructions For Contributors, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Antibiotic Substance Produced By Rhizopus Nigricans Ehrenberg, Billy Joe Williams Jan 1955

Antibiotic Substance Produced By Rhizopus Nigricans Ehrenberg, Billy Joe Williams

Journal of the Arkansas Academy of Science

No abstract provided.


38th Annual Meeting, 1954. Secretary's Report, Lowell F. Bailey Jan 1955

38th Annual Meeting, 1954. Secretary's Report, Lowell F. Bailey

Journal of the Arkansas Academy of Science

No abstract provided.


38th Annual Meeting, 1954. Program, Academy Editors Jan 1955

38th Annual Meeting, 1954. Program, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


38th Annual Meeting, 1954. Abstracts Of Papers, Academy Editors Jan 1955

38th Annual Meeting, 1954. Abstracts Of Papers, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Study Of The Cotton Rat In Northwestern Arkansas, John A. Sealander, Barry Q. Walker Jan 1955

Study Of The Cotton Rat In Northwestern Arkansas, John A. Sealander, Barry Q. Walker

Journal of the Arkansas Academy of Science

No abstract provided.