226 results on '"Ferris, K"'
Search Results
102. A Further Study on the Temporary Effect of Industrial Noise on the Hearing of Stapedectomized Ears at 4,000 cps.
- Author
-
Ferris, K.
- Published
- 1968
103. The Temporary Effects of 125 c.p.s. Octave-Band Noise on Stapedectomized Ears.
- Author
-
Ferris, K
- Published
- 1967
104. Surface defect enhancement of local electric fields in dielectric media
- Author
-
Ferris, K. F. and Risser, S. M.
- Published
- 1995
- Full Text
- View/download PDF
105. Dipolar indicators of site acidity in metal oxides
- Author
-
Ferris, K. F.
- Published
- 1993
- Full Text
- View/download PDF
106. Atomic polar tensors and acid-base properties of metal-oxide building blocks
- Author
-
Ferris, K
- Published
- 1993
107. Theoretical determination of the nonlinear optical properties of inorganic polymers
- Author
-
Ferris, K
- Published
- 1990
108. Rates of Cancer Detection and Abnormal Results among Clients Recruited for Mammography through Outreach and Education Supported by the Avon Breast Health Outreach Program.
- Author
-
Rose, J., Opdyke, K. M., Gates-Ferris, K., and Hurlbert, M.
- Subjects
- *
COMMUNITY organization , *OUTREACH programs , *MAMMOGRAMS , *BREAST cancer research , *EDUCATION - Abstract
Background: The Avon Breast Health Outreach Program (BHOP) supports community- based organizations and safety-net providers in conducting outreach and education to recruit underserved, low-income and uninsured women for breast cancer screening mammography. Funded organizations report mammography outcomes as part of routine program monitoring. NCI Breast Cancer Consortium data for 2009 reported a cancer detection rate of 3.92 per 1,000 for screening mammograms and 33.21 per 1,000 for diagnostic mammograms. In CY2009, CDC's National Breast and Cervical Cancer Early Detection Program (NBCCEDP) reported 14 percent of mammograms had abnormal results requiring further investigation, with an overall cancer detection rate of 10.2 per 1,000 mammograms. Objective: To describe reported breast cancer detection rates and rates of abnormal mammography findings among Avon BHOP-funded programs. Methods: We reviewed routinely reported program outcomes data for 98 organizations funded continuously through the Avon BHOP for a three-year period from 2009 to 2011. Data for 17,839 mammograms were available in aggregate by year by grantee agency including the number of mammograms reported, number with a preliminary abnormal finding, and number of confirmed cancer diagnoses. Results: Agencies reported an average of 981 mammogram outcomes per year over 3 years (range 108 to 5,946 by agency). The average agency-specific rate of abnormal findings across 3 years was 13.2% (median 11.2%; range 0.49% to 51.0%). The average agency-specific cancer detection rate was 8.1 per 1,000 (median 6.4 per 1,000; range zero to 31.7 per 1,000). 28 organizations had 3-year average cancer detection rates in excess of 10 per 1,000, and 6 had rates exceeding 20 per 1,000. Large fluctuations in the proportion of mammogram outcomes reported as abnormal by a given agency year-over-year were common. Conclusion: Avon BHOP agencies reported overall abnormal and cancer detection rates similar to those of the NBCCEDP, but higher than the general population. Fluctuations in year-over-year rates were common, and may indicate changes in the way program data were reported over time, changes in screening practices (e.g. new clinical providers or new equipment), and/or differences in breast cancer risk among clients recruited for screening over time. High rates of abnormal screening results could indicate delays in obtaining results from follow-up diagnostic testing, problems with the calibration of equipment, or other quality issues. Discussion: Grantees with unusually high or low rates of abnormal or cancer outcomes or significant year-over-year rate fluctuations would benefit from technical assistance to identify and explain the underlying causes of these trends. Ensuring that all clients recruited for breast cancer screening receive high quality mammography services -- including accurate imaging and reliable interpretation by experienced radiologists -- is critical to minimize client anxiety and to ensure that screening results in improved health outcomes. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
109. Environmental Applications of Self-Assembled Monolayers on Mesoporous Supports
- Author
-
Ferris, K
- Published
- 1999
110. Nonlinear optical properties of polyphosphazenes
- Author
-
Ferris, K
- Published
- 1991
111. X-Ray-Adsorption Fine-Structure Spectroscopy Study of the Interactions Between Contaminant Tetrahedral Anions and Self-Assembled Monolayers on Mesoporous Supports
- Author
-
Ferris, K
- Published
- 2001
- Full Text
- View/download PDF
112. X-Ray-Absorption Fine-Structure Spectroscopy Study Of The Interactions Between Contaminant Tetrahedral Anions And Self-Assembled Monolayers On Mesoporous Supports
- Author
-
Ferris, K [Oregon State University]
- Published
- 2001
- Full Text
- View/download PDF
113. Theoretical calculations of the nonlinear dielectric function of inhomogeneous thin films
- Author
-
Ferris, K
- Published
- 1990
114. Scattering of light from small nematic spheres with radial dielectric anisotropy
- Author
-
Ferris, K [Department of Materials Sciences, Pacific Northwest National Laboratories, Richland, Washington 99352 (United States)]
- Published
- 1997
- Full Text
- View/download PDF
115. Theoretical calculations of the nonlinear dielectric function of inhomogeneous thin films
- Author
-
Ferris, K
- Published
- 1989
116. Comparing data quality of client intake forms by interview mode: results of a pilot study on the use of audio computer-assisted self-interview (ACASI) in the Avon Breast Health Outreach Program.
- Author
-
Hallum-Montes, R., Senter, L., D'Souza, R., Hurlbert, M., Gates-Ferris, K., and Anastario, M.
- Subjects
- *
CANCER research , *INTERVIEWING , *RESEARCH , *MEDICAL informatics , *TECHNOLOGY - Abstract
Background: Numerous studies have documented the relative advantages that computer assisted self-interview (CASI) technology holds over traditional interviewing methods in collecting research data on stigmatized and/or risky health behaviors. However, few studies have explored the broader implications of using CASI to collect basic client-level data during routine health promotion and disease prevention screenings. Aims: The present study aims to address this gap in research by comparing the quality of client-level data collected via audio-computer assisted self-interview (ACASI) with data collected via face-to-face and self-administered paper-based interviews among a sample of clients served through the Avon Breast Health Outreach Program (Avon BHOP). Methods: A total of 303 clients served through the Avon BHOP were sampled from three U.S. sites between November 2011 and March 2012. Clients were randomly assigned to complete the Avon BHOP client intake form (CIF) via one of three interview modes: face-to-face interview (FFI), self-administered paper-based interview (SAPI), or ACASI. We conducted logistic regression and determined odds ratios with 95% confidence intervals to test our hypothesis that use of ACASI would result in significantly higher rates of CIF completion than either FFI or SAPI. We compared rates of completion of the entire CIF, as well as completion of each of the three CIF sections: Demographics, Breast Health Information, and Correlates of Breast Health. Results: Clients were significantly more likely to complete the entire CIF via ACASI than either FFI or SAPI interview modes. The greatest differences were observed when comparing rates of completion between ACASI and SAPI, as clients were almost five times more likely to complete the CIF via ACASI as opposed to SAPI (OR = 4.7, p < 0.001). Additionally, when comparing rates of completion of the three CIF sections on Demographics, Breast Health Information (e.g. mammogram history), and Correlates of Breast Health (e.g., smoking behavior, alcohol consumption), we found that clients were between 3.2 and 7.2 times more likely to complete the sections via ACASI as opposed to SAPI. Discussion: Overall, we found that use of ACASI resulted in significantly higher rates of overall form completion and lower rates of missing data than use of SAPI or FFI, with the greatest identified disparity in form completion between ACASI and SAPI. This study has important implications for breast health specialists or any health practitioners who regularly rely on self-administered questionnaires and/or face-to-face interviews to collect important health information. We recommend that where feasible, ACASI be utilized as an effective means of collecting high quality client-level data. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
117. Women's responses to changes in US Preventive Services Task Force mammography screening guidelines: results from focus groups among ethnically diverse women.
- Author
-
Bluethmann, S. M., Allen, J. D., Hernandez, C., Opdyke, K. M., Gates-Ferris, K., Hurlbert, M., and Harden, E.
- Subjects
- *
MAMMOGRAMS , *QUALITATIVE research , *HISPANIC Americans - Abstract
Introduction: In 2009, the US Preventive Services Task Force (USPSTF) changed its recommendations on the age and frequency for routine mammography. To this point, responses to this change among ethnically diverse women have been not been well examined. The objective of this qualitative study is to describe women's awareness of the change in mammography screening guidelines by the U.S. Preventive Services Task Force and to describe their attitudes toward this change. Methods: White, Black and Hispanic women ages 40-49 years were recruited from a variety of community settings in the Greater Boston, MA area to participate in focus groups (k = 10; N=73). Groups were segmented by race/ethnicity (Black = 29%; White=29%; Hispanic=15%). Women were asked if they were aware of the change in USPSTF guidelines, and if so, their understanding about reasons for this change and intention to comply. Focus groups were audio-taped and transcribed verbatim. Thematic content analysis was used to cull recurring discussion themes. Results: Most women in this study were not aware of changes in the USPSTF mammography screening guidelines. Those who were aware of the guideline change were highly suspicious that it was motivated by a desire for cost savings on the part of insurance companies and/or providers. Concerns regarding the accuracy of mammography, pain associated with screening, and fear of receiving positive test results were prevalent. Nevertheless, most said that they did not intend to comply with changes in guidelines; many believed that regular (yearly) mammography should start at a young age (40 or before) and continue indefinitely. Conclusion: Most women in this sample were unaware about changes in mammography screening guidelines and lacked understanding regarding underlying reasons for the change. Communication about the rationale for changes in mammography screening guidelines has left many women unconvinced about the potential downsides of screening and has generated a high degree of mistrust of insurance companies and medical providers. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
118. Elevated serum gamma-glutamyltransferase activity and immunohistochemistry in two dogs with renal carcinoma.
- Author
-
Stowe DM, Held EP, Cross EA, Meritet D, Hess PR, Ferris K, and Mochizuki H
- Subjects
- Animals, Dogs, Male, Female, Carcinoma, Renal Cell veterinary, Carcinoma, Renal Cell enzymology, Carcinoma, Renal Cell pathology, Carcinoma, Renal Cell diagnosis, Biomarkers, Tumor blood, gamma-Glutamyltransferase blood, Dog Diseases pathology, Dog Diseases enzymology, Dog Diseases blood, Dog Diseases diagnosis, Kidney Neoplasms veterinary, Kidney Neoplasms pathology, Kidney Neoplasms enzymology, Kidney Neoplasms diagnosis, Immunohistochemistry veterinary
- Abstract
During a 3-year time period, a 15-year-old male castrated Terrier mix (dog 1) and a 6-year-old female spayed Labrador Retriever (dog 2) presented to the North Carolina State Veterinary Hospital with similar blood work abnormalities and no significant physical examination findings. A CBC, chemistry panel, and urinalysis performed on both dogs were relatively unremarkable, other than a marked increase in serum gamma-glutamyltransferase (GGT) activity. Through imaging, both patients were diagnosed with a renal mass, and histopathology of both masses revealed a carcinoma. Immunohistochemical staining of the renal mass in both dog 1 and dog 2 were intensely positive for GGT. Dog 1 had the affected kidney removed, which normalized the GGT value. Dog 2 was euthanized, and metastasis to the lung was noted upon postmortem examination. There have been limited case studies documenting an elevation in serum GGT in dogs diagnosed with renal carcinoma. While renal carcinoma is uncommon in dogs, it is an important differential to keep in mind when there is a marked increase in serum GGT without accompanying increases in other measured liver enzymes. In addition, serum GGT can serve as a helpful biomarker for disease resolution and recurrence, as surgical removal of the renal mass (dog 1) led to the resolution of the elevated serum GGT. To our knowledge, this is the first report demonstrating IHC staining for GGT in a canine renal carcinoma., (© 2024 The Author(s). Veterinary Clinical Pathology published by Wiley Periodicals LLC on behalf of American Society for Veterinary Clinical Pathology.)
- Published
- 2024
- Full Text
- View/download PDF
119. Outdoor air pollution and near-fatal/fatal asthma attacks in children: A systematic review.
- Author
-
Varghese D, Ferris K, Lee B, Grigg J, Pinnock H, and Cunningham S
- Subjects
- Humans, Child, Air Pollutants analysis, Air Pollutants adverse effects, Particulate Matter analysis, Particulate Matter adverse effects, Environmental Exposure adverse effects, Environmental Exposure statistics & numerical data, Ozone analysis, Ozone adverse effects, Asthma epidemiology, Air Pollution adverse effects, Air Pollution analysis
- Abstract
Background: Globally, observational studies have demonstrated an association between high levels of air pollution and asthma attacks in children. It remains unclear whether and to what extent exposure may be associated with increased near-fatal/fatal attacks., Objective: To systematically review the evidence for an association between ambient outdoor air pollution and fatal and/or near-fatal asthma (NFA)., Methods: Following Cochrane methodology, we searched MEDLINE, EMBASE, Web of Science, Scopus, and Open Grey electronic databases for studies reporting the association of fatal/NFA and air pollution (particulate matter [PM], sulfur dioxide, nitrogen dioxide, black carbon and ozone [O
3 ]) in children. NFA was defined as requiring intensive care unit (ICU) management., Results: Two reviewers independently screened 1358 papers. A total of 276 studies identified asthma attacks related to air pollution, 272 did not meet inclusion criteria after full-text review. Four observational studies described fatal/NFA, of which three addressed NFA. PM2.5 (per 12.5 µg/m3 increase) and O3 (per 22 ppb increase) were associated with NFA in one study (PM2.5, relative risk: 1.26, confidence interval [CI] [1.10-1.44]), O3 (1.19 [1.01-1.40]). PM10 was associated with ICU admission in the context of thunderstorm asthma. Elemental carbon was associated equally with NFA that did not require an ICU admission (p = 0.67). Studies of fatal asthma including children did not demarcate age within the analysis., Conclusions: Ozone and PM2.5 have been associated with NFA in children but synthesis is limited by the paucity of studies and methodological heterogeneity. Poor reporting of severities of asthma attacks hinders the assessment of whether outdoor air pollution is associated with an increased number of NFA/fatal attacks in children., (© 2024 The Authors. Pediatric Pulmonology published by Wiley Periodicals LLC.)- Published
- 2024
- Full Text
- View/download PDF
120. The Lived Experiences of African International Students in the UK : Precarity, Consciousness and the Law
- Author
-
Marson, James, Dirisu, Mohammed, Ferris, Katy, Marson, James, Dirisu, Mohammed, and Ferris, Katy
- Published
- 2022
- Full Text
- View/download PDF
121. Speech-Language Pathologists' Preparation, Practices, and Perspectives on Serving Indigenous Families and Children.
- Author
-
Guiberson M and Ferris K
- Subjects
- Child, Humans, United States, Speech, Pathologists, Surveys and Questionnaires, Learning, Communication Disorders, Speech-Language Pathology methods
- Abstract
Purpose: With the documented educational inequities that Indigenous children experience evidenced by disproportionate representation in special education and lower graduation rates, there is a need to better understand the backgrounds, training, professional perspectives, and clinical practices of speech-language pathologists (SLPs) serving this population. Therefore, the purpose of this study was to conduct a survey with SLPs from the Mountain West and High Plains region of the United States who serve Indigenous children to understand current patterns and to inform practices that SLPs can apply in addressing educational inequities., Method: SLPs from the Mountain West and High Plains completed an online survey that gathered information about background, training, professional perspectives, and clinical practices., Results: Three hundred thirty-three SLPs completed the survey. Results revealed that respondents, for the most part, understood educational disparities that Indigenous children experience, and they valued Indigenous dialects of English and Indigenous languages. Patterns in practice revealed strong reliance on standardized measures for assessment and a small percentage of respondents using bidialectal or narrative-based strategies., Conclusions: Very few respondents had training on serving Indigenous children and families, yet they had overall awareness of educational disparities experienced by this group. Respondents reported challenges with developing relationships and overcoming access barriers. Their clinical practices were not as tailored to the language and learning needs of Indigenous children, especially when compared to practices recommended in two recent scoping reviews. The Indigenous Connectedness Framework, the abundance model, and Indigenous pedagogies are presented as ways to initiate change and meaningful engagement with Indigenous families and communities., Supplemental Material: https://doi.org/10.23641/asha.24100863.
- Published
- 2023
- Full Text
- View/download PDF
122. Developing the Weaving Healthy Families Program to Promote Wellness and Prevent Substance Abuse and Violence: Approach, Adaptation, and Implementation.
- Author
-
McKinley CE, Lilly J, Liddell JL, Knipp H, Solomon TA, Comby N, Comby H, Haynes P, Ferris K, and Goldberg M
- Abstract
Family prevention programs that enhance mental health, wellness, and resilience-while simultaneously addressing violence and alcohol and other drug (AOD) abuse-among Indigenous families are scarce. This gap in culturally grounded and community-based programs creates a critical need to develop and evaluate the efficacy of such prevention programs. This article fills this gap, with the purpose of describing the structure and content of the Weaving Healthy Families (WHF) program, a culturally grounded and community-based program aimed at preventing violence and AOD use while promoting mental health, resilience, and wellness in Indigenous families. The focus then turns to how to approach this process of developing and implementing the program in a culturally grounded and community-based way., Competing Interests: Declaration of Conflicting Interests The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2023
- Full Text
- View/download PDF
123. Patient and public involvement in paediatric medical education.
- Author
-
Donnelly S, Ferris K, Kennedy N, Bourke T, and O'Donoghue D
- Subjects
- Child, Humans, Adolescent, Pandemics, Parents, COVID-19, Education, Medical, Pediatrics
- Abstract
The benefits of involving patients and the public in medical education are well documented, however there is a need to further explore how this can be translated to the setting of paediatric medical education. This article aims to identify how organisations can facilitate the involvement of paediatric patients and their parents/carers.While involving children in research can present challenges, we describe examples where organisations have successfully involved young people in clinical research and selection of research topics.Involving paediatric patients and their parents/carers in medical education helps develop a patient centred approach to practice for medical students. Participation of paediatric patients in objective structured clinical examination (OSCE) examinations is employed by many medical schools, however allowing them the ability to provide a 'global score' may have the potential to assess skills such as communication and empathy in addition to medical knowledge.The Royal College of Paediatrics and Child Health (RCPCH) have provided a framework on how to involve children in health services, addressing practical considerations such as funding and facilities. This framework could be applied by organisations seeking to actively involve children in paediatric medical education. Potential barriers and facilitators are explored in this article.During the COVID-19 pandemic, involving young people and their families in medical student teaching became challenging. We describe virtual bedside teaching sessions which actively involved paediatric patients and their families, which showed that many patients and parents prefer virtual consultations.Involving paediatric patients and their families in medical education is strongly advocated by the General Medical Council (GMC) and RCPCH. Organisations should actively seek out opportunities to become involved in the development of medical education resources as we describe in this paper., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2023
- Full Text
- View/download PDF
124. What is your diagnosis? Perineal swelling in a dog.
- Author
-
Marin J, Ferris K, and Gruber E
- Subjects
- Dogs, Animals, Perineum, Dog Diseases diagnosis
- Published
- 2023
- Full Text
- View/download PDF
125. The association of host and vector characteristics with Ctenocephalides felis pathogen and endosymbiont infection.
- Author
-
Moore C, Breitschwerdt EB, Kim L, Li Y, Ferris K, Maggi R, and Lashnits E
- Abstract
Surveillance of the fleas and flea-borne pathogens infecting cats is important for both human and animal health. Multiple zoonotic Bartonella and Rickettsia species are known to infect the most common flea infesting cats and dogs worldwide: Ctenocephalides felis , the cat flea. The ability of other flea species to transmit pathogens is relatively unexplored. We aimed to determine cat host and flea factors independently associated with flea Bartonella and Rickettsia infection. We also assessed flea and cat infection by flea-host pair and location. To accomplish these aims, we performed qPCR for the detection of Bartonella , hemotropic Mycoplasma , Rickettsia , and Wolbachia DNA using paired cat and flea samples obtained from free-roaming cats presenting for spay or neuter across four locations in the United States. A logistic regression model was employed to identify the effect of cat (sex, body weight, geographic location, and Bartonella , hemotropic Mycoplasma , and Rickettsia spp., infection) and flea (clade and Rickettsia and Wolbachia infection) factors on C . felis Bartonella clarridgeiae infection. From 189 free roaming cats, we collected 84 fleas: Ctenocephalides felis (78/84), Cediopsylla simplex (4/84), Orchopeas howardi (1/84), and Nosopsyllus fasciatus (1/84). Ctenocephalides felis were phylogenetically assigned to Clades 1, 4, and 6 by cox1 gene amplification. Rickettsia asembonensis (52/84) and B . clarridgeiae (16/84) were the most common pathogenic bacteria detected in fleas. Our model identified host cat sex and weight as independently associated with B . clarridgeiae infection in fleas. Rickettsia asembonensis (52/84), Rickettsia felis (7/84) and Bartonella henselae (7/84) were detected in specific clades: R . felis was detected only in Clades 1 and 6 while B . henselae and R . asembonensis were detected only in Clade 4. Wolbachia spp., also displayed clade specificity with strains other than Wolbachia wCfeT only infecting fleas from Clade 6. There was poor flea and host agreement for Bartonella spp., infection; however, there was agreement in the Bartonella species detected in cats and fleas by geographic location. These findings reinforce the importance of considering reservoir host attributes and vector phylogenetic diversity in epidemiological studies of flea-borne pathogens. Widespread sampling is necessary to identify the factors driving flea-borne pathogen presence and transmission., Competing Interests: In conjunction with S. Sontakke and North Carolina State University, EB holds US Patent No. 7,115,384 Media and Methods for Cultivation of Microorganisms, which was issued on October 3rd, 2006, and also co-founder, shareholder, and Chief Scientific Officer for Galaxy Diagnostics, a company that provides advanced diagnostic testing for the detection of Bartonella spp. infections. The handling editor MA declared a past co-authorship with the EB and RM. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Moore, Breitschwerdt, Kim, Li, Ferris, Maggi and Lashnits.)
- Published
- 2023
- Full Text
- View/download PDF
126. Decitabine increases neoantigen and cancer testis antigen expression to enhance T-cell-mediated toxicity against glioblastoma.
- Author
-
Ma R, Rei M, Woodhouse I, Ferris K, Kirschner S, Chandran A, Gileadi U, Chen JL, Pereira Pinho M, Ariosa-Morejon Y, Kriaucionis S, Ternette N, Koohy H, Ansorge O, Ogg G, Plaha P, and Cerundolo V
- Subjects
- Adult, Male, Humans, Decitabine pharmacology, Antigens, Neoplasm genetics, T-Lymphocytes, Testis, Cell Line, Tumor, Glioblastoma drug therapy, Glioblastoma genetics
- Abstract
Background: Glioblastoma (GBM) is the most common and malignant primary brain tumor in adults. Despite maximal treatment, median survival remains dismal at 14-24 months. Immunotherapies, such as checkpoint inhibition, have revolutionized management of some cancers but have little benefit for GBM patients. This is, in part, due to the low mutational and neoantigen burden in this immunogenically "cold" tumor., Methods: U87MG and patient-derived cell lines were treated with 5-aza-2'-deoxycytidine (DAC) and underwent whole-exome and transcriptome sequencing. Cell lines were then subjected to cellular assays with neoantigen and cancer testis antigen (CTA) specific T cells., Results: We demonstrate that DAC increases neoantigen and CTA mRNA expression through DNA hypomethylation. This results in increased neoantigen presentation by MHC class I in tumor cells, leading to increased neoantigen- and CTA-specific T-cell activation and killing of DAC-treated cancer cells. In addition, we show that patients have endogenous cancer-specific T cells in both tumor and blood, which show increased tumor-specific activation in the presence of DAC-treated cells., Conclusions: Our work shows that DAC increases GBM immunogenicity and consequent susceptibility to T-cell responses in vitro. Our results support a potential use of DAC as a sensitizing agent for immunotherapy., (© The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Neuro-Oncology.)
- Published
- 2022
- Full Text
- View/download PDF
127. Identification of microbial taxa present in Ctenocephalides felis (cat flea) reveals widespread co-infection and associations with vector phylogeny.
- Author
-
Manvell C, Berman H, Callahan B, Breitschwerdt E, Swain W, Ferris K, Maggi R, and Lashnits E
- Subjects
- Animals, Cats, Cat Diseases parasitology, Flea Infestations epidemiology, Flea Infestations veterinary, Phylogeny, Bartonella genetics, Coinfection, Ctenocephalides microbiology, Rickettsia genetics
- Abstract
Background: Ctenocephalides felis, the cat flea, is the most common ectoparasite of cats and dogs worldwide. As a cause of flea allergy dermatitis and a vector for two genera of zoonotic pathogens (Bartonella and Rickettsia spp.), the effect of the C. felis microbiome on pathogen transmission and vector survival is of substantial medical importance to both human and veterinary medicine. The aim of this study was to assay the pathogenic and commensal eubacterial microbial communities of individual C. felis from multiple geographic locations and analyze these findings by location, qPCR pathogen prevalence, and flea genetic diversity., Methods: 16S Next Generation Sequencing (NGS) was utilized to sequence the microbiome of fleas collected from free-roaming cats, and the cox1 gene was used for flea phylogenetic analysis. NGS data were analyzed for 168 individual fleas from seven locations within the US and UK. Given inconsistency in the genera historically reported to constitute the C. felis microbiome, we utilized the decontam prevalence method followed by literature review to separate contaminants from true microbiome members., Results: NGS identified a single dominant and cosmopolitan amplicon sequence variant (ASV) from Rickettsia and Wolbachia while identifying one dominant Bartonella clarridgeiae and one dominant Bartonella henselae/Bartonella koehlerae ASV. Multiple less common ASVs from these genera were detected within restricted geographical ranges. Co-detection of two or more genera (Bartonella, Rickettsia, and/or Wolbachia) or multiple ASVs from a single genus in a single flea was common. Achromobacter, Peptoniphilus, and Rhodococcus were identified as additional candidate members of the C. felis microbiome on the basis of decontam analysis and literature review. Ctenocephalides felis phylogenetic diversity as assessed by the cox1 gene fell within currently characterized clades while identifying seven novel haplotypes. NGS sensitivity and specificity for Bartonella and Rickettsia spp. DNA detection were compared to targeted qPCR., Conclusions: Our findings confirm the widespread coinfection of fleas with multiple bacterial genera and strains, proposing three additional microbiome members. The presence of minor Bartonella, Rickettsia, and Wolbachia ASVs was found to vary by location and flea haplotype. These findings have important implications for flea-borne pathogen transmission and control., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
128. Perioral swelling in a previously well child.
- Author
-
Walker R, Ferris K, Scott M, McMahon N, Szabo A, Dick AC, Christie S, and Mallett P
- Subjects
- Child, Humans, Angioedema, Face
- Abstract
Competing Interests: Competing interests: None declared.
- Published
- 2022
- Full Text
- View/download PDF
129. How to interpret skin prick tests and serum-specific IgE in children and young people with food allergy.
- Author
-
Ferris K, Cowan M, Williams C, McAteer S, Glancy C, and Callaghan S
- Subjects
- Adolescent, Child, Humans, Predictive Value of Tests, Quality of Life, Skin Tests, Food Hypersensitivity diagnosis, Immunoglobulin E
- Abstract
Food allergy is common, it can lead to significant morbidity andnegatively impacts on quality of life; therefore, it is vitally important we get the diagnosis right. However, making the diagnosis can be complex. Clinical history is the most important diagnostic tool and subsequent investigation may help confirm the diagnosis. The investigations available to most paediatric departments are skin prick testing and specific IgE so we will focus on these. Within this article we explore the evidence related to targeted testing and how to interpret these within the clinical context., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2022
- Full Text
- View/download PDF
130. James Joyce and the Burden of Disease
- Author
-
Ferris, Kathleen and Ferris, Kathleen
- Published
- 2015
- Full Text
- View/download PDF
131. Evolution of Gross Forelimb and Fine Digit Kinematics during Skilled Reaching Acquisition in Rats.
- Author
-
Bova A, Ferris K, and Leventhal DK
- Subjects
- Animals, Biomechanical Phenomena, Learning, Rats, Upper Extremity, Forelimb, Motor Skills
- Abstract
The ability to learn dexterous motor skills is a fundamental aspect of human behavior. However, the underlying neural circuit mechanisms for dexterous skill learning are unclear. Advancing our understanding of motor skill learning requires the integration of modern neuroscientific techniques with a rigorously characterized dexterous task. The development of automated rodent skilled reaching with paw tracking allows detailed analysis of how reach-to-grasp kinematics evolve during learning. We assessed how both "gross" forelimb and "fine" digit kinematics changed as rats learned skilled reaching. Rats whose success rates increased (learners) consistently reduced the variability in their reach trajectories. Refinement of fine digit control generally continued after consistency in gross hand transport to the pellet plateaued. Interestingly, most rats whose success rates did not increase (non-learners) also converged on consistent reach kinematics. Some non-learners, however, maintained substantial variability in hand and digit trajectories throughout training. These results suggest that gross and fine motor components of dexterous skill are, on average, learned over different timescales. Nonetheless, there is significant intersubject variability in learning rates as assessed by both reaching success and consistency of reach kinematics., (Copyright © 2021 Bova et al.)
- Published
- 2021
- Full Text
- View/download PDF
132. Prevalence of Vector-Borne Pathogens in Reproductive and Non-Reproductive Tissue Samples from Free-Roaming Domestic Cats in the South Atlantic USA.
- Author
-
Manvell C, Ferris K, Maggi R, Breitschwerdt EB, and Lashnits E
- Abstract
Reservoir to multiple species of zoonotic pathogens, free-roaming cats (FRCs) interact with domestic and wild animals, vectors, and humans. To assess the potential for feline vector-borne pathogens to be vertically transmitted, this study surveyed ear tip and reproductive tissues of FRCs from two locations in the South Atlantic United States for Anaplasma, Bartonella , Ehrlichia, hemotropic Mycoplasma , and Rickettsia species. We collected ovary ( n = 72), uterus ( n = 54), testicle ( n = 74), and ear tip ( n = 73) tissue from 73 cats, and fetal ( n = 20) and placental ( n = 19) tissue from 11 queens. Pathogen DNA was amplified utilizing qPCR, confirmed by sequencing. Cats were more frequently Bartonella henselae positive on reproductive tissues (19%, 14/73) than ear tip (5%, 4/73; p = 0.02). B. henselae was amplified from fetus (20%, 4/20) and placenta samples (11%, 2/19). Bartonella spp. infection was more common in cats from North Carolina (76%, 26/34) than Virginia (13%, 5/39; p < 0.0001). Fourteen percent (10/73) of both ear tip and reproductive tissues were positive for hemotropic Mycoplasma spp. Anaplasma, Ehrlichia , and Rickettsia spp. DNA was not amplified from any cat/tissue. These findings suggest that B. henselae preferentially infected cats' reproductive tissue and reinforces the importance of investigating the potential for B. henselae vertical transmission or induction of reproductive failure.
- Published
- 2021
- Full Text
- View/download PDF
133. Seroprevalence of SARS-CoV-2 antibodies in children: a prospective multicentre cohort study.
- Author
-
Waterfield T, Watson C, Moore R, Ferris K, Tonry C, Watt A, McGinn C, Foster S, Evans J, Lyttle MD, Ahmad S, Ladhani S, Corr M, McFetridge L, Mitchell H, Brown K, Amirthalingam G, Maney JA, and Christie S
- Subjects
- COVID-19 Serological Testing methods, COVID-19 Serological Testing statistics & numerical data, Child, Female, Humans, Male, Seroepidemiologic Studies, Symptom Assessment methods, Symptom Assessment statistics & numerical data, United Kingdom epidemiology, Antibodies, Viral blood, COVID-19 diagnosis, COVID-19 epidemiology, COVID-19 immunology, Gastrointestinal Diseases diagnosis, Gastrointestinal Diseases virology, Olfaction Disorders diagnosis, Olfaction Disorders virology, SARS-CoV-2 immunology, SARS-CoV-2 isolation & purification
- Abstract
Background: Studies based on molecular testing of oral/nasal swabs underestimate SARS-CoV-2 infection due to issues with test sensitivity, test timing and selection bias. The objective of this study was to report the presence of SARS-CoV-2 antibodies, consistent with previous infection., Design: This multicentre observational cohort study, conducted between 16 April to 3 July 2020 at 5 UK sites, recruited children of healthcare workers, aged 2-15 years. Participants provided blood samples for SARS-CoV-2 antibody testing and data were gathered regarding unwell contacts and symptoms., Results: 1007 participants were enrolled, and 992 were included in the final analysis. The median age of participants was 10·1 years. There were 68 (6.9%) participants with positive SARS-CoV-2 antibody tests indicative of previous SARS-CoV-2 infection. Of these, 34/68 (50%) reported no symptoms prior to testing. The presence of antibodies and the mean antibody titre was not influenced by age. Following multivariable analysis four independent variables were identified as significantly associated with SARS-CoV-2 seropositivity: known infected household contact OR=10.9 (95% CI 6.1 to 19.6); fatigue OR=16.8 (95% CI 5.5 to 51.9); gastrointestinal symptoms OR=6.6 (95% CI 3.0 to 13.8); and changes in sense of smell or taste OR=10.0 (95% CI 2.4 to 11.4)., Discussion: Children demonstrated similar antibody titres in response to SARS-CoV-2 irrespective of age. Fatigue, gastrointestinal symptoms and changes in sense of smell or taste were the symptoms most strongly associated with SARS-CoV-2 antibody positivity., Trial Registration Number: NCT0434740., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2021
- Full Text
- View/download PDF
134. Effectiveness of a Nurse-Led Multidisciplinary Intervention vs Usual Care on Advance Care Planning for Vulnerable Older Adults in an Accountable Care Organization: A Randomized Clinical Trial.
- Author
-
Gabbard J, Pajewski NM, Callahan KE, Dharod A, Foley KL, Ferris K, Moses A, Willard J, and Williamson JD
- Subjects
- Aged, Aged, 80 and over, Electronic Health Records, Female, Humans, Male, Patient Care Team, Vulnerable Populations, Accountable Care Organizations, Advance Care Planning, Patient Navigation
- Abstract
Importance: Advance care planning (ACP), especially among vulnerable older adults, remains underused in primary care. Additionally, many ACP initiatives fail to integrate directly into the electronic health record (EHR), resulting in infrequent and disorganized documentation., Objective: To determine whether a nurse navigator-led ACP pathway combined with a health care professional-facing EHR interface improves the occurrence of ACP discussions and their documentation within the EHR., Design, Setting, and Participants: This was a randomized effectiveness trial using the Zelen design, in which patients are randomized prior to informed consent, with only those randomized to the intervention subsequently approached to provide informed consent. Randomization began November 1, 2018, and follow-up concluded November 1, 2019. The study population included patients 65 years or older with multimorbidity combined with either cognitive or physical impairments, and/or frailty, assessed from 8 primary care practices in North Carolina., Interventions: Participants were randomized to either a nurse navigator-led ACP pathway (n = 379) or usual care (n = 380)., Main Outcomes and Measures: The primary outcome was documentation of a new ACP discussion within the EHR. Secondary outcomes included the usage of ACP billing codes, designation of a surrogate decision maker, and ACP legal form documentation. Exploratory outcomes included incident health care use., Results: Among 759 randomized patients (mean age 77.7 years, 455 women [59.9%]), the nurse navigator-led ACP pathway resulted in a higher rate of ACP documentation (42.2% vs 3.7%, P < .001) as compared with usual care. The ACP billing codes were used more frequently for patients randomized to the nurse navigator-led ACP pathway (25.3% vs 1.3%, P < .001). Patients randomized to the nurse navigator-led ACP pathway more frequently designated a surrogate decision maker (64% vs 35%, P < .001) and completed ACP legal forms (24.3% vs 10.0%, P < .001). During follow-up, the incidence of emergency department visits and inpatient hospitalizations was similar between the randomized groups (hazard ratio, 1.17; 95% CI, 0.92-1.50)., Conclusions and Relevance: A nurse navigator-led ACP pathway integrated with a health care professional-facing EHR interface increased the frequency of ACP discussions and their documentation. Additional research will be required to evaluate whether increased EHR documentation leads to improvements in goal-concordant care., Trial Registration: ClinicalTrials.gov Identifier: NCT03609658.
- Published
- 2021
- Full Text
- View/download PDF
135. Seroprevalence of SARS-CoV-2 antibodies in children of United Kingdom healthcare workers: a prospective multicentre cohort study protocol.
- Author
-
Corr M, Christie S, Watson C, Maney J, Fairley D, Ladhani SN, Lyttle MD, McFetridge L, Mitchell H, Shields MD, McGinn C, McKenna J, Mallett P, Ferris K, Rowe-Setz G, Moore R, Foster S, Evans J, and Waterfield T
- Subjects
- Adolescent, Child, Child, Preschool, Female, Humans, Longitudinal Studies, Male, Pandemics, Prospective Studies, United Kingdom epidemiology, Antibodies, Viral blood, Health Personnel, SARS-CoV-2 immunology, Seroepidemiologic Studies
- Abstract
Background: A novel coronavirus SARS-CoV-2 has been responsible for a worldwide pandemic. Children typically have very mild, or no, symptoms of infection. This makes estimations of seroprevalence in children difficult. Research is therefore required to determine the seroprevalence of SARS-CoV-2 antibodies in children. The primary objective of this study is to report the seroprevalence of SARS-CoV-2 IgM and/or IgG antibodies in healthy children at baseline, 2 months and 6 months. This is the only longitudinal UK study of seroprevalence in an exclusively paediatric population. Determining the changing seroprevalence is of vital public health importance and can help inform decisions around the lifting of paediatric specific social distancing measures such as school closures and the cancellation of routine paediatric hospital services., Methods and Analysis: 1000 healthy children of healthcare workers aged between 2 and 15 years will be recruited from five UK sites (Belfast, Cardiff, Glasgow, London and Manchester). The children will undergo phlebotomy at baseline, 2 months and 6 months to measure IgM and/or IgG positivity to SARS-CoV-2. A sample size of 675 patients is required to detect a 5% change in seroprevalence at each time point assuming an alpha of 0.05 and a beta of 0.2. Adjusted probabilities for the presence of IgG and/or IgM antibodies and of SARS-CoV-2 infection will be reported using logistic regression models where appropriate., Ethics and Dissemination: Ethical approval was obtained from the London - Chelsea Research Ethics Committee (REC Reference-20/HRA/1731) and the Belfast Health & Social Care Trust Research Governance (Reference 19147TW-SW). Results of this study will be made available as preprints and submitted for publication in peer-reviewed journals., Trial Registration Number: NCT0434740; Results., Competing Interests: Competing interests: JMK holds share options in Hibergene Diagnostics Ltd, Sandyford, Dublin, Republic of Ireland. DF is a non-executive director, advisory board member and shareholder in Hibergene Diagnostics Ltd, Sandyford, Dublin, Republic of Ireland., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2020
- Full Text
- View/download PDF
136. Advance care planning for vulnerable older adults within an Accountable Care Organization: study protocol for the IMPACT randomised controlled trial.
- Author
-
Gabbard J, Pajewski NM, Callahan KE, Dharod A, Foley K, Ferris K, Moses A, Grey C, and Williamson J
- Subjects
- Aged, Chronic Disease, Humans, Multicenter Studies as Topic, Patient Participation, Pragmatic Clinical Trials as Topic, Terminal Care, Accountable Care Organizations organization & administration, Advance Care Planning, Decision Making, Documentation methods
- Abstract
Introduction: Patients with multimorbidity plus additional impairments (eg, mobility limitations, disability, cognitive impairments or frailty) are at the highest risk for poor healthcare outcomes. Advanced care planning (ACP) provides patients and their surrogates the opportunity to discuss their goals, values and priorities for healthcare-particularly in the context of end-of-life care. ACP discussions promote more person-centred care; however, it is currently underused. There is a tremendous need for systematic, scalable approaches to individualised ACP that promotes patient and family engagement. Here we describe the study protocol for a randomised effectiveness trial of a nurse navigator and informatics intervention designed to improve the documentation and quality of ACP discussions., Methods and Analysis: This is a randomised, pragmatic, effectiveness trial; patients aged 65 years and older who have multimorbidity plus impairments in either physical function (eg, mobility limitations or disability) or cognition, and/or frailty within an affiliated Accountable Care Organization were eligible. The electronic health record was used to develop an automatic prescreening system for eligible patients (n=765) and participants were randomised in a 1:1 ratio to either the nurse navigator-led ACP pathway or usual care. Our primary outcomes are documentation of ACP discussions within the EHR along with the quality of ACP discussions. Secondary outcomes include a broad range of ACP actions (eg, usage of ACP billing codes, choosing a surrogate decision-maker and advance directive documentation). Outcomes will be measured over 12 months of follow-up., Ethics and Dissemination: This study has been approved by the appropriate Institutional Review Boards and is guided by input from patient and clinical advisory boards. The results of this study will inform a scalable solution to ACP discussions throughout our healthcare system and statewide., Trials Registration Number: NCT03609658., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2019
- Full Text
- View/download PDF
137. Effect of a mindfulness exercise on stress in veterinary students performing surgery.
- Author
-
Stevens BS, Royal KD, Ferris K, Taylor A, and Snyder AM
- Subjects
- Animals, Female, Humans, Hydrocortisone blood, Male, alpha-Amylases blood, Education, Veterinary, Mindfulness, Stress, Psychological prevention & control, Students
- Abstract
Objective: To determine students' stress while performing surgery and evaluate the ability of a mindfulness intervention to reduce this stress., Study Design: Quasi-experimental design., Sample Population: Eighteen fourth-year DVM program students (n = 9 student/group)., Methods: Utilizing a quasi-experimental design, students were randomly assigned to a control or treatment group. The treatment group performed a 5-minute breathing (mindfulness) exercise immediately prior to performing surgery. Each student provided 3 samples of saliva, at time 0, at 10 minutes before surgery, and at 10 minutes after surgery. Students' salivary cortisol and α-amylase levels were compared between groups. Students' self-reported mood measures were also correlated to levels of salivary biomarkers., Results: Cortisol and α-amylase levels of students in both groups greatly exceeded normative reference groups (>90th percentile) prior to surgery and diminished to average levels (50th-60th percentile) after surgery but did not differ between groups at any time point. Immediately prior to surgery when stress values were likely to peak, salivary α-amylase levels decreased approximately 30 U/L units for students in the treatment group compared with an increase of approximately 10 U/L units for students in the control group. Students in the treatment group reported being more calm (mean [M] 2.67, SD 1.03, d = 0.75) and relaxed (M 2.33, SD 1.51, d = 0.90) than students in the control group (M 3.44, SD 1.01 and M 3.44, SD 0.88, respectively)., Conclusion: This study provides some evidence that the mindfulness intervention temporarily decreased stress levels and improved students' sense of calmness and relaxation immediately before operating on a live animal., Clinical Impact: Students who are experiencing less stress may be less likely to commit a medical error and negatively impact animal health. This study, the first of its kind in veterinary surgery, may serve as a model for related future studies., (© 2019 The American College of Veterinary Surgeons.)
- Published
- 2019
- Full Text
- View/download PDF
138. The Hydropathy Scale as a Gauge of Hygroscopicity in Sub-Micron Sodium Chloride-Amino Acid Aerosols.
- Author
-
Darr JP, Gottuso S, Alfarra M, Birge D, Ferris K, Woods D, Morales P, Grove M, Mitts WK, Mendoza-Lopez E, and Johnson A
- Subjects
- Hydrophobic and Hydrophilic Interactions, Spectrophotometry, Infrared, Water chemistry, Wettability, Aerosols chemistry, Amino Acids chemistry, Sodium Chloride chemistry
- Abstract
Sodium chloride, NaCl, is commonly used as a proxy for sea spray aerosols. However, field work has demonstrated that sea spray aerosols also often contain a significant organic component. In this work, we examine the effect of amino acids on the hygroscopic properties of NaCl aerosols using a Fourier transform infrared spectrometer coupled to a flow-cell apparatus. It is found that the effect can be drastically different depending on the nature of the amino acid. More hydrophilic amino acids such as glycine lead to continuous hygroscopic growth of internally mixed NaCl-amino acid aerosols generated from an equimolar precursor solution. However, more hydrophobic amino acids such as alanine do not significantly alter the hygroscopicity of NaCl aerosols. The hydropathy scale is found to be a good qualitative diagnostic for the effect that an amino acid will have on the hygroscopicity of NaCl.
- Published
- 2018
- Full Text
- View/download PDF
139. Inside "Outside" Job: Unexpected Geometric Skin Ulcerations Overlying Orthopedic Hardware After Multimodal Laser Scar Revision.
- Author
-
Borok J, Ferris K, Vaux K, and Krakowski AC
- Subjects
- Cicatrix pathology, Cicatrix therapy, Female, Fibula injuries, Fractures, Bone surgery, Humans, Laser Therapy methods, Reoperation, Skin Ulcer pathology, Skin Ulcer therapy, Cicatrix etiology, Fracture Fixation, Internal adverse effects, Fracture Fixation, Internal instrumentation, Internal Fixators adverse effects, Laser Therapy adverse effects, Skin Ulcer etiology
- Published
- 2018
- Full Text
- View/download PDF
140. Mechanism and Catalytic Site Atlas (M-CSA): a database of enzyme reaction mechanisms and active sites.
- Author
-
Ribeiro AJM, Holliday GL, Furnham N, Tyzack JD, Ferris K, and Thornton JM
- Subjects
- Biocatalysis, Catalytic Domain, Data Curation, Humans, Internet, User-Computer Interface, Web Browser, Databases, Protein, Enzymes chemistry, Enzymes metabolism
- Abstract
M-CSA (Mechanism and Catalytic Site Atlas) is a database of enzyme active sites and reaction mechanisms that can be accessed at www.ebi.ac.uk/thornton-srv/m-csa. Our objectives with M-CSA are to provide an open data resource for the community to browse known enzyme reaction mechanisms and catalytic sites, and to use the dataset to understand enzyme function and evolution. M-CSA results from the merging of two existing databases, MACiE (Mechanism, Annotation and Classification in Enzymes), a database of enzyme mechanisms, and CSA (Catalytic Site Atlas), a database of catalytic sites of enzymes. We are releasing M-CSA as a new website and underlying database architecture. At the moment, M-CSA contains 961 entries, 423 of these with detailed mechanism information, and 538 with information on the catalytic site residues only. In total, these cover 81% (195/241) of third level EC numbers with a PDB structure, and 30% (840/2793) of fourth level EC numbers with a PDB structure, out of 6028 in total. By searching for close homologues, we are able to extend M-CSA coverage of PDB and UniProtKB to 51 993 structures and to over five million sequences, respectively, of which about 40% and 30% have a conserved active site., (© The Author(s) 2017. Published by Oxford University Press on behalf of Nucleic Acids Research.)
- Published
- 2018
- Full Text
- View/download PDF
141. A systematic review of psychological correlates of HIV testing intention.
- Author
-
Evangeli M, Ferris K, Kenney NM, Baker LLE, Jones B, and Wroe AL
- Subjects
- AIDS Serodiagnosis statistics & numerical data, Adult, HIV Infections diagnosis, Humans, Mass Screening psychology, Mass Screening statistics & numerical data, Perception, Prejudice, Serologic Tests, Fear, HIV Infections psychology, Health Knowledge, Attitudes, Practice, Intention, Social Stigma
- Abstract
Undiagnosed HIV infection is associated with onward HIV transmission and delays in accessing HIV care and treatment. As a significant proportion of HIV tests are self-initiated, it is important to assess correlates of the intention to test for HIV. Psychological correlates of HIV testing intention are more likely to be the feasible target of interventions than structural determinants. A systematic review of psychological correlates of HIV testing intention was conducted. Twenty studies were included in the review, covering a range of populations and geographical regions. The most commonly assessed variables were HIV risk perception and HIV knowledge rather than HIV test-specific psychological factors. There was evidence that HIV risk perception and pro-testing attitudes were consistently associated with HIV testing intention across a number of studies. There is a need for longitudinal designs, including experimental studies, allowing for more confident casual inferences to be made. Theoretical, research and practice implications are outlined.
- Published
- 2018
- Full Text
- View/download PDF
142. Utilizing break-even analysis in a competitive laser market.
- Author
-
Chapman LW, Ferris K, and Zachary C
- Subjects
- Humans, Laser Therapy instrumentation, Cost-Benefit Analysis economics, Economic Competition economics, Laser Therapy economics
- Published
- 2018
- Full Text
- View/download PDF
143. Response to letter by Popov, Todor regarding our paper: Exhaled breath temperature measurement and asthma control in children prescribed inhaled corticosteroids: A cross sectional study.
- Author
-
Hamill L, Ferris K, Kapande K, McConaghy L, Douglas I, McGovern V, and Shields MD
- Subjects
- Adrenal Cortex Hormones, Biomarkers, Breath Tests, Child, Cross-Sectional Studies, Exhalation, Humans, Nitric Oxide, Asthma, Temperature
- Published
- 2016
- Full Text
- View/download PDF
144. Exhaled breath temperature measurement and asthma control in children prescribed inhaled corticosteroids: A cross sectional study.
- Author
-
Hamill L, Ferris K, Kapande K, McConaghy L, Douglas I, McGovern V, and Shields MD
- Subjects
- Adolescent, Adrenal Cortex Hormones administration & dosage, Anti-Asthmatic Agents administration & dosage, Asthma drug therapy, Breath Tests, Child, Child, Preschool, Cross-Sectional Studies, Exhalation, Female, Humans, Lung physiopathology, Male, Prospective Studies, Spirometry, Adrenal Cortex Hormones therapeutic use, Anti-Asthmatic Agents therapeutic use, Asthma physiopathology, Body Temperature physiology, Nitric Oxide analysis
- Abstract
Background: Exhaled breath temperature (EBT) reflects airways (both eosinophilic and neutrophilic) inflammation in asthma and thus may aid the management of children with asthma that are treated with anti-inflammatory drugs. A new EBT monitor has become available that is cheap and easy to use and may be a suitable monitoring device for airways inflammation. Little is known about how EBT relates to asthma treatment decisions, disease control, lung function, or other non-invasive measures of airways inflammation, such as exhaled nitric oxide (ENO)., Objective: To determine the relationships between EBT and asthma treatment decision, current control, pulmonary function, and ENO., Methods: Cross-sectional prospective study on 159 children aged 5-16 years attending a pediatric respiratory clinic. EBT was compared with the clinician's decision regarding treatment (decrease, no change, increase), asthma control assessment (controlled, partial, uncontrolled), level of current treatment (according to British Thoracic Society guideline, BTS step), ENO, and spirometry., Results: EBT measurement was feasible in the majority of children (25 of 159 could not perform the test) and correlated weakly with age (R = 0.33, P = <0.01). EBT did not differ significantly between the three clinician decision groups (P = 0.42), the three asthma control assessment groups (P = 0.9), or the current asthma treatment BTS step (P = 0.57)., Conclusions & Clinical Implications: EBT measurement was not related to measures of asthma control determined at the clinic. The routine intermittent monitoring of EBT in children prescribed inhaled corticosteroids who attend asthma clinics cannot be recommended for adjusting anti-inflammatory asthma therapy., (© 2015 Wiley Periodicals, Inc.)
- Published
- 2016
- Full Text
- View/download PDF
145. Improving completion rates for client intake forms through Audio Computer-Assisted Self-Interview (ACASI): results from a pilot study with the Avon Breast Health Outreach Program.
- Author
-
Hallum-Montes R, Senter L, D'Souza R, Gates-Ferris K, Hurlbert M, and Anastario M
- Subjects
- Adult, Aged, Female, Humans, Middle Aged, Pilot Projects, United States, Young Adult, Computers statistics & numerical data, Data Collection methods, Interviews as Topic methods, Surveys and Questionnaires statistics & numerical data
- Abstract
This study compares rates of completion of client intake forms (CIFs) collected via three interview modes: audio computer-assisted self-interview (ACASI), face-to-face interview (FFI), and self-administered paper-based interview (SAPI). A total of 303 clients served through the Avon Breast Health Outreach Program (BHOP) were sampled from three U.S. sites. Clients were randomly assigned to complete a standard CIF via one of the three interview modes. Logistic regression analyses demonstrated that clients were significantly more likely to complete the entire CIF via ACASI than either FFI or SAPI. The greatest observed differences were between ACASI and SAPI; clients were almost six times more likely to complete the CIF via ACASI as opposed to SAPI (AOR = 5.8, p < .001). We recommend that where feasible, ACASI be utilized as an effective means of collecting client-level data in healthcare settings. Adoption of ACASI in health centers may translate into higher completion rates of intake forms by clients, as well as reduced burden on clinic staff to enter data and review intake forms for completion., (© 2013 National Association for Healthcare Quality.)
- Published
- 2014
- Full Text
- View/download PDF
146. Women's responses to changes in U.S. Preventive Task Force's mammography screening guidelines: results of focus groups with ethnically diverse women.
- Author
-
Allen JD, Bluethmann SM, Sheets M, Opdyke KM, Gates-Ferris K, Hurlbert M, and Harden E
- Subjects
- Adult, Attitude to Health, Ethnicity, Female, Focus Groups, Guideline Adherence, Health Knowledge, Attitudes, Practice, Humans, Mammography psychology, Middle Aged, Practice Guidelines as Topic, Racial Groups, United States, Mammography standards
- Abstract
Background: The 2009 U.S. Preventive Services Task Force (USPSTF) changed mammography guidelines to recommend routine biennial screening starting at age 50. This study describes women's awareness of, attitudes toward, and intention to comply with these new guidelines., Methods: Women ages 40-50 years old were recruited from the Boston area to participate in focus groups (k = 8; n = 77). Groups were segmented by race/ethnicity (Caucasian = 39%; African American = 35%; Latina = 26%), audio-taped, and transcribed. Thematic content analysis was used., Results: Participants were largely unaware of the revised guidelines and suspicious that it was a cost-savings measure by insurers and/or providers. Most did not intend to comply with the change, viewing screening as obligatory. Few felt prepared to participate in shared decision-making or advocate for their preferences with respect to screening., Conclusions: Communication about the rationale for mammography guideline changes has left many women unconvinced about potential disadvantages or limitations of screening. Since further guideline changes are likely to occur with advances in technology and science, it is important to help women become informed consumers of health information and active participants in shared decision-making with providers. Additional research is needed to determine the impact of the USPSTF change on women's screening behaviors and on breast cancer outcomes.
- Published
- 2013
- Full Text
- View/download PDF
147. Radiological diagnosis of a small bowel perforation secondary to toothpick ingestion.
- Author
-
Mark D, Ferris K, Martel G, and Mulholland K
- Subjects
- Aged, Eating, Foreign Bodies complications, Humans, Ileal Diseases etiology, Ileum diagnostic imaging, Ileum injuries, Intestinal Perforation etiology, Male, Radiography, Foreign Bodies diagnostic imaging, Ileal Diseases diagnostic imaging, Intestinal Perforation diagnostic imaging
- Abstract
A 77-year-old edentulous man presented to the accident and emergency department with a sudden onset of sharp right-sided abdominal pain. The patient reported a change in his bowel habit with constipation over a 6 month period but did not report any significant choking event or ingestion of a foreign body in the preceding months. On examination the patient was maximally tender with guarding over McBurneys point. CT scan showed an abnormal segment of distal ileum with a 3 cm high attenuation focus which had penetrated the bowel wall. At laparotomy the patient was found to have a perforation of his distal ileum caused by an ingested toothpick. Patients wearing dental plates or dentures are at higher risk of toothpick ingestion due to impaired palatal sensation. CT scanning, in the appropriate setting, may aid diagnosis and lower operator risk of sharp related injury at the time of operation.
- Published
- 2013
- Full Text
- View/download PDF
148. Adolescents' domain-specific judgments about different forms of civic involvement: variations by age and gender.
- Author
-
Metzger A and Ferris K
- Subjects
- Adolescent, Age Factors, Analysis of Variance, Child, Female, Humans, Interpersonal Relations, Judgment, Male, Sex Factors, Young Adult, Adolescent Behavior, Adolescent Development, Politics
- Abstract
Domain-specific judgments about different forms of civic engagement were assessed in a sample 467 primarily White adolescents (M age=15.26, range=11-19). Adolescents reported on the obligatory nature and social praiseworthiness (respect) of different forms of civic involvement. Adolescents distinguished among four different categories of civic involvement in their judgments: community service, standard political involvement (e.g., voting), social movement involvement (e.g., protesting), and community gathering activities. These mean differences were moderated by adolescent age (early, middle, and late adolescents) and gender. With increasing age, adolescents judged community service to be more worthy of respect but less obligatory. Compared to early adolescents, late adolescents prioritized standard political involvement as an activity in which US citizens should be engaged, but judged community gathering activities to be less obligatory. Across all age groups, girls judged community service and community gathering activities to be more obligatory than boys., (Copyright © 2013 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2013
- Full Text
- View/download PDF
149. Use of carbon dioxide laser to treat lentigo maligna and malignant melanoma in situ, lentigo maligna type.
- Author
-
McLeod M, Franca K, Ferris K, and Nouri K
- Published
- 2012
- Full Text
- View/download PDF
150. Lasers and photodynamic therapy for the treatment of acne.
- Author
-
Ferris KM, McLeod MP, Ahmed A, and Nouri K
- Subjects
- Acne Vulgaris etiology, Combined Modality Therapy, Humans, Acne Vulgaris therapy, Photochemotherapy
- Abstract
Acne vulgaris is one of the most common diseases in the United States, affecting 40 to 50 million individuals. The condition is both a dermatologic and psychosocial challenge for many patients, and while topical therapy and cleansers continue to be the gold standard of treatment, the use of lasers and light will continue to play a role that will likely expand in management of acne. Modalities that have been explored include PDT with and without photosensitizers, KTP, PDL, infrared and fractional lasers. Current data evaluating these methods will be herewith discussed. The future application of these devices in acne therapy will likely include combination therapy and exploration of more precisely targeted chromophores.
- Published
- 2012
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.