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Prairie State College

UniversityChicago Heights, Illinois, United States

Research output, citation impact, and the most-cited recent papers from Prairie State College (United States). Aggregated across the NobleBlocks index of 300M+ scholarly works.

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Top-cited papers from Prairie State College

An Attribution Model of Public Discrimination Towards Persons with Mental Illness
Patrick W. Corrigan, Fred E. Markowitz, Amy C. Watson, David Rowan +1 more
2003· Journal of Health and Social Behavior1.4Kdoi:10.2307/1519806

In this study, we build on previous work by developing and estimating a model of the relationships between causal attributions (e.g., controllability, responsibility), familiarity with mental illness, dangerousness, emotional responses (e.g., pity, anger, fear), and helping and rejecting responses. Using survey data containing responses to hypothetical vignettes, we examine these relationships in a sample of 518 community college students. Consistent with attribution theory, causal attributions affect beliefs about persons' responsibility for causing their condition, beliefs which in turn lead to affective reactions, resulting in rejecting responses such as avoidance, coercion, segregation, and withholding help. However, consistent with a danger appraisal hypothesis, the effects of perceptions of dangerousness on helping and rejecting responses are unmediated by responsibility beliefs. Much of the dangerousness effects operate by increasing fear, a particularly strong predictor of support for coercive treatment. The results from this study also suggest that familiarity with mental illness reduces discriminatory responses.

Three Strategies for Changing Attributions about Severe Mental Illness
Patrick W. Corrigan, L. Philip River, Roger Lundin†, David L. Penn +4 more
2001· Schizophrenia Bulletin789doi:10.1093/oxfordjournals.schbul.a006865

The effects of three strategies for changing stigmatizing attitudes--education (which replaces myths about mental illness with accurate conceptions), contact (which challenges public attitudes about mental illness through direct interactions with persons who have these disorders), and protest (which seeks to suppress stigmatizing attitudes about mental illness)--were examined on attributions about schizophrenia and other severe mental illnesses. One hundred and fifty-two students at a community college were randomly assigned to one of the three strategies or a control condition. They completed a questionnaire about attributions toward six groups--depression, psychosis, cocaine addiction, mental retardation, cancer, and AIDS--prior to and after completing the assigned condition. As expected, results showed that education had no effect on attributions about physical disabilities but led to improved attributions in all four psychiatric groups. Contact produced positive changes that exceeded education effects in attributions about targeted psychiatric disabilities: depression and psychosis. Protest yielded no significant changes in attributions about any group. This study also examined the effects of these strategies on processing information about mental illness.

Challenging Two Mental Illness Stigmas: Personal Responsibility and Dangerousness
Patrick W. Corrigan, D. C. Rowan, Andrew R. Green, Robert E. Lundin +4 more
2002· Schizophrenia Bulletin557doi:10.1093/oxfordjournals.schbul.a006939

Two stigmatizing attitudes related to dangerousness and personal responsibility may undermine the opportunities of persons with serious mental illness. This study set out to examine path models that explain how these attitudes lead to discriminatory behavior and to assess the impact of antistigma programs on components of personal responsibility and dangerousness models. Two hundred thirteen persons were randomly assigned to one of five antistigma conditions: education on personal responsibility, education on dangerousness, contact with a person with serious mental illness where personal responsibility is discussed, contact where dangerousness is discussed, or no change. Persons completed an attribution questionnaire (AQ) representing personal responsibility and dangerousness path models at pretest, posttest, and 1-week followup. They also completed tasks that represented helping behavior. Goodness of fit indexes from linear structural modeling were mixed for both models but suggested that fear of dangerousness was a key attitude leading to discriminatory behavior. Results also showed that subjects who had contact with persons with serious mental illness experienced greater changes than subjects in the education or control groups did on measures of attribution and helping behavior.

Changing Attitudes About Schizophrenia
E. Paul Holmes, Patrick W. Corrigan, Philip Lee Williams, J. Canar +1 more
1999· Schizophrenia Bulletin545doi:10.1093/oxfordjournals.schbul.a033392

Research on the effectiveness of short-term education programs in changing societal attitudes about mental illness has been mixed. Education efforts seem to be mediated by characteristics of the program participants. This study determines whether the effects of a specially prepared, semester-long course on severe mental illness are mediated by pre-education knowledge about and contact with severe mental illness. Eighty-three participants who were enrolled in either a course on severe mental illness or general psychology completed the Opinions about Mental Illness Questionnaire before beginning the course and at completion. Research participants also completed a pre-and posttest of knowledge about mental illness and a pretest on their contact with people who have severe mental illness. The education program had positive effects on some attitudes about mental illness. Interestingly, the effects of education group interacted with pre-education knowledge and contact and varied depending on attitude. Participants with more pre-education knowledge and contact were less likely to endorse benevolence attitudes after completing the education program. Participants with more intimate contact showed less improvement in attitudes about social restrictiveness. Implications of these augmentation and ceiling effects are discussed.

Stigmatizing attributions about mental illness
Patrick W. Corrigan, L. Philip River, Robert Lundin, Kyle Uphoff Wasowski +4 more
2000· Journal of Community Psychology430doi:10.1002/(sici)1520-6629(200001)28:1<91::aid-jcop9>3.0.co;2-m

Work and housing opportunities of persons with psychosis, substance abuse disorder, and other mental illnesses are significantly hampered by societal stigma. Earlier research by Weiner and colleagues (1988) examined stigmatizing attitudes associated with general health disabilities in terms of attributions about the controllability and stability of these disabilities. The relevance of this model for describing attributions about four psychiatric disorders is examined in this study. One hundred and fifty two adults rated four psychiatric groups (cocaine addiction, depression, psychosis, and mental retardation) and two physical health groups (cancer and AIDS) on six items corresponding with controllability and stability attributions. Findings from a factor analysis supported the distinction between controllability and stability factors. Results also suggested that mental health disabilities were rated more negatively on these factors than physical disabilities. Participants clearly discriminated among mental health disabilities, with cocaine addiction rated most negative in terms of controllability and mental retardation rated most negative in terms of stability. Attribution analyses provide useful information for changing the community's reactions to persons with mental illness. © 2000 John Wiley & Sons, Inc.

Examining Two Aspects of Contact on the Stigma of Mental Illness
Rebecca R. Reinke, Patrick W. Corrigan, Christoph Leonhard, Robert Lundin +1 more
2004· Journal of Social and Clinical Psychology227doi:10.1521/jscp.23.3.377.35457

This study expands on earlier research by our group that has shown that contact with people with mental illness has significant effects on changing stigmatizing attitudes. Two factors that affect contact are examined in this study: the medium through which contact is experienced, and the level of stereotype disconfirmation engendered in contact. One hundred sixty-four individuals were randomly assigned to one of five conditions. Three of the conditions allowed us to examine the effects of medium: no stigma-control, in vivo contact with moderate disconfirmation, and videotaped contact with moderate disconfirmation. Along with the moderate disconfirmation videotape, two additional videotaped conditions —little or no disconfirmation and high disconfirmations—defined the three groups for our second set of hypotheses on disconfirmation. Research participants completed the Social Distance Scale prior to being assigned to condition and immediately upon completion. In terms of the medium of contact, results showed that both videotaped and in vivo contact led to significant change in stigmatizing attitudes. Two interesting results were found in terms of level of disconfirmation. First, viewing a videotape of a person with mental illness that does not disconfirm the stereotype (e.g., the person is manifestly psychotic) does not change stigmatizing attitudes. Second, videotapes of people who moderately and highly disconfirm the stereotype lead to significant improvement in attitudes, with nonsignificant trends suggesting that moderate disconfirmation yields better effects. Implications of these findings for future work on changing public attitudes are discussed.

The Slave’s Cause: A History of Abolition
Justin A. Pariseau
2017· Journal of American Ethnic History117doi:10.5406/jamerethnhist.36.4.0067

Book Review| July 01 2017 The Slave’s Cause: A History of Abolition The Slave’s Cause: A History of Abolition. By Manisha Sinha. New Haven, CT: Yale University Press, 2016. 768 pp. Illustrations, notes, and index. $37.50 (cloth); $25 (paper). Justin A. Pariseau Justin A. Pariseau Prairie State College Justin A. Pariseau is Assistant Professor of History at Prairie State College. He received his PhD from the College of William & Mary in 2015. His dissertation examined the combined efforts of black and white residents of Massachusetts whaling communities in support of the abolitionist cause and related social reforms. Search for other works by this author on: This Site Google Journal of American Ethnic History (2017) 36 (4): 67–68. https://doi.org/10.5406/jamerethnhist.36.4.0067 Cite Icon Cite Share Icon Share Facebook Twitter LinkedIn MailTo Permissions Search Site Citation Justin A. Pariseau; The Slave’s Cause: A History of Abolition. Journal of American Ethnic History 1 January 2017; 36 (4): 67–68. doi: https://doi.org/10.5406/jamerethnhist.36.4.0067 Download citation file: Zotero Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All Scholarly Publishing CollectiveUniversity of Illinois PressJournal of American Ethnic History Search Advanced Search The text of this article is only available as a PDF. Copyright 2017 by the Board of Trustees of the University of Illinois2017 Article PDF first page preview Close Modal Issue Section: Reviews You do not currently have access to this content.

Facebook as a Library Tool: Perceived vs. Actual Use
Terra B. Jacobson
2011· College & Research Libraries82doi:10.5860/crl-88r1

As Facebook has come to dominate the social networking site arena, more libraries have created their own library pages on Facebook to create library awareness and to function as a marketing tool. This paper examines reported versus actual use of Facebook in libraries to identify discrepancies between intended goals and actual use. The results of a 2009 study about the use of Facebook in libraries are used as a guide to gauge the perceived and actual uses for Facebook in this study. Results of the test reveal that the two ranks are not statistically different, but that there is a noticeable difference when looking at the perceived and actual rankings qualitatively.

The Acyl Desaturase CER17 Is Involved in Producing Wax Unsaturated Primary Alcohols and Cutin Monomers
Xianpeng Yang, Huayan Zhao, Dylan K. Kosma, Pernell Tomasi +4 more
2017· PLANT PHYSIOLOGY81doi:10.1104/pp.16.01956

homologs) in the cuticular waxes of Arabidopsis (Arabidopsis thaliana) inflorescence stem, a class of wax not previously reported in Arabidopsis. The Arabidopsis cer17 mutant was completely deficient in these monounsaturated alcohols, and CER17 was found to encode a predicted ACYL-COENZYME A DESATURASE LIKE4 (ADS4). Studies of the Arabidopsis cer4 mutant and yeast variously expressing CER4 (a predicted fatty acyl-CoA reductase) with CER17/ADS4, demonstrated CER4's principal role in synthesis of these monounsaturated alcohols. Besides unsaturated alcohol deficiency, cer17 mutants exhibited a thickened and irregular cuticle ultrastructure and increased amounts of cutin monomers. Although unsaturated alcohols were absent throughout the cer17 stem, the mutation's effects on cutin monomers and cuticle ultrastructure were much more severe in distal than basal stems, consistent with observations that the CER17/ADS4 transcript was much more abundant in distal than basal stems. Furthermore, distal but not basal stems of a double mutant deficient for both CER17/ADS4 and LONG-CHAIN ACYL-COA SYNTHETASE1 produced even more cutin monomers and a thicker and more disorganized cuticle ultrastructure and higher cuticle permeability than observed for wild type or either mutant parent, indicating a dramatic genetic interaction on conversion of very long chain acyl-CoA precursors. These results provide evidence that CER17/ADS4 performs n-6 desaturation of very long chain acyl-CoAs in both distal and basal stems and has a major function associated with governing cutin monomer amounts primarily in the distal segments of the inflorescence stem.

North America Wound, Ostomy, and Continence and Enterostomal Therapy Nurses Current Ostomy Care Practice Related to Peristomal Skin Issues
Janice C. Colwell, Laurie McNichol, Joy Boarini
2017· Journal of Wound Ostomy and Continence Nursing76doi:10.1097/won.0000000000000324

PURPOSE: The purpose of this study was to describe the practice of 796 ostomy nurses in North America in 2014 related to peristomal skin issues. DESIGN: Descriptive study. SUBJECTS AND SETTING: Participants were 796 wound, ostomy, and continence (WOC) and enterostomal therapy (ET) nurses currently practicing in the United States or Canada and caring for patients with ostomies. The collection of data occurred in conjunction with an educational program on peristomal skin complications and practice issues and solicited the participant's perception on the incidence and frequency of peristomal skin issues as well as on practice patterns. METHODS: Participants attended an educational program. They were also asked to anonymously respond to multiple-choice questions on ostomy care management via an audience response system followed by discussion of each item and their responses. This descriptive study reports on the answers to the questions as well as the pertinent discussion points. RESULTS: Participants estimated that approximately 77.70% of their patients developed peristomal skin issues. The most commonly encountered problem was irritant contact dermatitis (peristomal moisture-associated skin damage). Contributing factors were inappropriate use of a pouching system owing to lack of follow-up after hospital discharge. Reported interventions for the prevention and management of peristomal skin issues included preoperative stoma site marking, use of a convex pouching system, and barrier rings. However, subsequent discussion revealed that the frequency of use of these products varied considerably. Participants identified shortened hospital stays, absence of preoperative stoma marking, and limited outpatient follow-up as contributing to development of peristomal skin problems. CONCLUSION: WOC and ET nurses estimate that more than three-quarters of persons living with an ostomy develop peristomal skin problems. Multiple interventions for managing these problems were identified, but some variability in management approaches emerged.

Predictors of Participation in Campaigns against Mental Illness Stigma
Patrick W. Corrigan, L. Philip River, Robert Lundin, Kyle Uphoff Wasowski +4 more
1999· The Journal of Nervous and Mental Disease60doi:10.1097/00005053-199906000-00008

Corrigan, Patrick W. Psy.D.; River, L. Philip A.M.; Lundin, Robert K. B.A.; Wasowski, Kyle Uphoff M.A.; Campion, John B.A.; Mathisen, James Psy.D.; Goldstein, Hillel B.A.; Gagnon, Christine B.A.; Bergman, Maria B.A.; Kubiak, Mary Anne M.A. Author Information

American Academy of Optometry Microbial Keratitis Think Tank
Loretta Szczotka‐Flynn, Joseph P. Shovlin, Cristina M. Schnider, Barbara Caffery +4 more
2021· Optometry and Vision Science39doi:10.1097/opx.0000000000001664

SIGNIFICANCE: Think Tank 2019 affirmed that the rate of infection associated with contact lenses has not changed in several decades. Also, there is a trend toward more serious infections associated with Acanthamoeba and fungi. The growing use of contact lenses in children demands our attention with surveillance and case-control studies. PURPOSE: The American Academy of Optometry (AAO) gathered researchers and key opinion leaders from around the world to discuss contact lens-associated microbial keratitis at the 2019 AAO Annual Meeting. METHODS: Experts presented within four sessions. Session 1 covered the epidemiology of microbial keratitis, pathogenesis of Pseudomonas aeruginosa, and the role of lens care systems and storage cases in corneal disease. Session 2 covered nonbacterial forms of keratitis in contact lens wearers. Session 3 covered future needs, challenges, and research questions in relation to microbial keratitis in youth and myopia control, microbiome, antimicrobial surfaces, and genetic susceptibility. Session 4 covered compliance and communication imperatives. RESULTS: The absolute rate of microbial keratitis has remained very consistent for three decades despite new technologies, and extended wear significantly increases the risk. Improved oxygen delivery afforded by silicone hydrogel lenses has not impacted the rates, and although the introduction of daily disposable lenses has minimized the risk of severe disease, there is no consistent evidence that they have altered the overall rate of microbial keratitis. Overnight orthokeratology lenses may increase the risk of microbial keratitis, especially secondary to Acanthamoeba, in children. Compliance remains a concern and a significant risk factor for disease. New insights into host microbiome and genetic susceptibility may uncover new theories. More studies such as case-control designs suited for rare diseases and registries are needed. CONCLUSIONS: The first annual AAO Think Tank acknowledged that the risk of microbial keratitis has not decreased over decades, despite innovation. Important questions and research directions remain.

Total Knee Arthroplasty
Vickey S. Lester, Michelle Miller, James B. Benjamin
1993· AORN Journal38doi:10.1016/s0001-2092(07)65271-5

otal knee replacement surgery is commonly performed in the United States, T with more than 100,000 replacements performed annually.' As with other joint replacement surgeries, knee arthroplasty is performed to provide pain relief and improve function in joints damaged by arthritk2 As at many veterans hospitals, we at the Veterans Affairs Medical Center, Tucson, perform numerous adult knee replacements each year (ie, 40 to 50, including revisions). Our orthopedic surgery service is composed of one full-time staff physician, three part-time staff physicians, and three full-time orthopedic surgery residents.

Effects of human disturbance on composition and structure of <i>Brachystegia</i> woodland in Arabuko‐Sokoke Forest, Kenya
Joseph O. Oyugi, Joel S. Brown, Christopher J. Whelan
2007· African Journal of Ecology34doi:10.1111/j.1365-2028.2007.00850.x

Abstract We examined tree species diversity, density, dispersion patterns and size class distributions in Brachystegia woodland of Arabuko‐Sokoke Forest, Kenya. The metrics varied with human disturbance (disturbed versus relatively undisturbed areas). Julbernardia magnistipulata Harms occurred only in the undisturbed site. Brachystegia spiciformis Benth. had the highest importance value (IV) at both study sites, whereas the IVs for the other tree species were greater within the undisturbed than the disturbed sites. Simpson’s Diversity Index and tree densities were greater in the undisturbed site than in the disturbed site. All seven tree species exhibited random dispersions in the disturbed site, but three species were clumped in the undisturbed areas. Smaller individuals of B. spiciformis were over‐represented in the disturbed habitat relative to the undisturbed habitat. In contrast, J. magnistipulata , Lannea schweinfurthii Engl. and Mimusops obtusifolia Wall. exhibited a greater proportion of smaller trees in the undisturbed site. The tree size class distributions may provide an index of regeneration for these four tree species in the disturbed and undisturbed sites respectively. Active management and restoration may be desirable for J. magnistipulata but appears unnecessary for the remaining common tree species. Illegal logging has persisted in the forest despite its conservation status over many decades. If logging activities cease, it would be instructive to document changes in vegetation composition and structure over time.

A field study of a roof bolter canopy air curtain (2nd generation) for respirable coal mine dust control
W. R. Reed, S. Klima, Michael R. Shahan, G. Ross +3 more
2019· International Journal of Mining Science and Technology28doi:10.1016/j.ijmst.2019.02.005

A 2nd generation roof bolter canopy air curtain (CAC) design was tested by National Institute for Occupational Safety and Health (NIOSH) at a Midwestern underground coal mine. During the study, the roof bolter never operated downwind of the continuous miner. Using a combination of personal Data Rams (pDR) and gravimetric samplers, the dust control efficiency of the roof bolter CAC was ascertained. Performance evaluation was determined using three methods: (1) comparing roof bolter operator concentrations underneath the CAC to roof bolter concentrations outside the CAC, (2) comparing roof bolter operator concentrations underneath the CAC to the concentrations at the rear of the bolter, and finally, (3) using the gravimetric data directly underneath the CAC to correct roof bolter operator concentrations underneath the CAC and comparing them to the concentrations at the rear of the bolter. Method 1 dust control efficiencies ranged from -53.9% to 60.4%. Method 2 efficiencies ranged from -150.5% to 52.2%, and Method 3 efficiencies ranged from 40.7% to 91%. Reasons for negative and low dust control efficiencies are provided in this paper and include: incorrect sampling locations, large distance between CAC and operator, and contamination of intake air from line curtain. Low dust concentrations encountered during the testing made it difficult to discern whether differences in concentrations were due to the CAC or due to variances inherent in experimental dust measurement. However, the analyses, especially the Method 3 analysis, show that the CAC can be an effective dust control device.

Administration of Medication by School Personnel
Kenneth D. Gadow, Kevin M. Kane
1983· Journal of School Health18doi:10.1111/j.1746-1561.1983.tb07815.x

Many students who receive drug therapy for a seizure or a behavior disorder must take medication during the school day. In order to determine how school personnel manage this situation, teachers were asked to complete individual questionnaires for 461 trainable mentally retarded students who were receiving pharmacotherapy for one or both of these disorders. The return rate was 86%. The results showed that: (a) more than one-half of the children took medication in school; (b) teachers were responsible for supervising this activity in 48% of these cases; and (c) the school had obtained written instructions from the doctor and a permission letter from the parents regarding medication in all but a small minority of instances. However, there was no daily record of drug administration for 55% of the students. Issues related to school involvement in the administration of medication are discussed.

Inhibition of Resistance Plasmid Transfer in Escherichia coli by Ionophores, Chlortetracycline, Bacitracin, and Ionophore/Antimicrobial Combinations
Jeremy J. Mathers, Steven Clark, Denny Hausmann, Paul Tillman +2 more
2004· Avian Diseases18doi:10.1637/7105

Medicinal feed additives bacitracin, chlortetracycline (CTC), laidlomycin, lasalocid, and salinomycin inhibited the transfer of multiresistance-conferring plasmid pBR325 (Tet(r) Amp(r) Cp(r), 6.0 kb) into selected gram-negative strains with the use of an in vitro model. High concentrations of ampicillin-sensitive competence-pretreated Escherichia coli HB 101 cells were exposed to 10% (v/v) of 1:10 dimethyl sulfoxide/agent : water containing test mixtures for 0.5 hr prior to plasmid addition and transforming conditions. Transformation was inhibited for all antimicrobials and showed a positive association wich higher concentration. Additional testing of ionophore compounds separately and in combination with bacitracin, chlortetracycline, lincomycin, roxarsone, tylosin, and virginiamycin at representative feed concentrations demonstrated 80.6% to >99.9% inhibition (P < 0.001) of resistance transfer. Bacitracin alone inhibited transformation within the range of 50-500 ppm. No increase in resistance transfer was observed when poultry-derived and reference gram-negative isolates having low or no transformation efficiency were additionally tested. The results suggest that these compounds, at relevant concentrations used in animal feed, may interfere with cell envelope-associated DNA uptake channels or other transformation competence mechanisms. Through these mechanisms, ionophores and cell membrane-interactive feed agents such as CTC and bacitracin may act to inhibit resistance transfer mechanisms within poultry and livestock.

Challenges Confronting Community College Deans
Utem K. Watba, Edgar I. Farmer
2006· Community College Journal of Research and Practice18doi:10.1080/10668920500322350

ABSTRACT Community college deans and other senior administrators are faced with a variety of issues and challenges that include, but are not limited to, the ever-changing nature of technology, changes in diverse populations, industry training, and job placements. At this level, the frequently identified emergence of leadership and supervision issues have been more than community college deans can address proactively. Various approaches are used to identify such issues and trends in the field. However, this article describes a 3-round Delphi approach to identifying leadership and supervision issues confronting community college deans over a 5-year period in 4 southeastern states: Florida, Maryland, North Carolina, and Virginia. The results of the study produced 48 major issues and 18 categories that have implications for community colleges throughout the nation. 12 of the 48 issues had a mean score of 4 or more points based on the assigned 5-point Likert-type scale. Community college deans, more than ever before, face increasing leadership and supervisory issues that have far-reaching implications not just for community colleges, but for other 2-year postsecondary educational institutions as well.

Evaluating One-Shot Library Sessions: Impact on the Quality and Diversity of Student Source Use
Kristina E. Howard, Thomas Nicholas, Tish Hayes, Christopher W. Appelt
2014· Community & Junior College Libraries13doi:10.1080/02763915.2014.1009749

This article examines the presumption that library research workshops will increase the quality, quantity and diversity of sources students use. This study compares bibliographies of research papers written by freshman composition students who received a library research session to those of students who did not receive any library instruction. Our data show that students who received workshops were more likely to use the specific library resources introduced in the session than those who did not receive an instruction session, but students did not use more sources, more diverse sources, or more scholarly sources.

Field study results of a 3rd generation roof bolter canopy air curtain for respirable coal mine dust control
W. R. Reed, Michael R. Shahan, S. Klima, G. Ross +3 more
2019· International Journal of Coal Science & Technology13doi:10.1007/s40789-019-00280-5

Abstract A 3rd generation roof bolter canopy air curtain (CAC) has been developed and constructed by J.H. Fletcher &amp; Co., Inc. As with the previous generation of the CAC, this design uses the principle of providing uniform airflow across the canopy area as recommended by the National Institute for Occupational Safety and Health. The new modifications include a plenum that is constructed of a single flat aluminum plate, smaller-diameter airflow openings, and a single row of perimeter nozzles designed to prevent mine air contaminated by respirable dust from entering the CAC protection zone. Field testing was conducted on this new 3rd generation design showing reductions in coal mine respirable dust exposure for roof bolter operators. Dust control efficiencies for the CAC for the left bolter operator (intake side) ranged from approximately 26%–60%, while the efficiencies for the CAC for the right bolter operator (return side) ranged from 3% to 47%.