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Related Concept Videos

Attitudes01:54

Attitudes

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Attitude is our evaluation of a person, an idea, or an object. We have attitudes for many things ranging from products that we might pick up in the supermarket to people around the world to political policies. Typically, attitudes are favorable or unfavorable: positive or negative (Eagly & Chaiken, 1993). And, they have three components: an affective component (feelings), a behavioral component (the effect of the attitude on behavior), and a cognitive component (belief and knowledge;...
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Qualitative Analysis03:46

Qualitative Analysis

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For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
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Qualitative Analysis01:10

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Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
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Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs01:20

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Body:Bioequivalence experimental study designs are crucial methodologies used in evaluating and comparing the bioavailability of different drug products. These designs are categorized into various types: completely randomized, randomized block, repeated measures, cross and carry-over, and Latin square designs.Completely randomized designs involve randomly allocating treatments to all subjects participating in the experiment. This allocation is achieved by assigning unique random numbers to...
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Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

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Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
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Clinical Trials01:16

Clinical Trials

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Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
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Related Experiment Video

Updated: Jan 26, 2026

Author Spotlight: Implementation of BIVA for Analyzing Disease Risk Factors in Patients with Low Body Cell Mass
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Attitudes towards Oral Health in Patients with Rheumatoid Arthritis: A Qualitative Study Nested within a Randomized

S Serban1,2, T Dietrich1, I Lopez-Oliva1

  • 1Periodontal Research Group, School of Dentistry, Institute of Clinical Sciences, University of Birmingham, and Birmingham Dental Hospital (Birmingham Community Healthcare NHS Foundation Trust), Edgbaston, Birmingham, UK.

JDR Clinical and Translational Research
|April 23, 2019
PubMed
Summary

Rheumatoid arthritis patients experience more severe periodontitis. Understanding their oral health perceptions and trial barriers can improve future clinical study participation and access to dental care.

Keywords:
dental focal infectionfeasibility studymultimorbiditypatient preferenceperiodontitisqualitative research

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Area of Science:

  • Oral health research
  • Rheumatoid arthritis management
  • Clinical trial methodology

Background:

  • Rheumatoid arthritis (RA) patients exhibit increased risk and severity of periodontitis compared to the general population.
  • The interplay between systemic inflammation in RA and periodontal disease necessitates targeted oral health interventions.
  • Previous dental experiences significantly influence RA patients' oral health priorities and compliance.

Purpose of the Study:

  • To explore the experiences and priorities of rheumatoid arthritis patients regarding oral health.
  • To identify barriers and facilitators influencing participation in periodontal clinical trials among RA patients.
  • To inform the design of future interventional periodontal studies for RA populations.

Main Methods:

  • A randomized waiting-list controlled trial (OPERA) with a nested qualitative component.
  • 21 semi-structured interviews were conducted with RA patients, including those in intervention/control arms and non-participants.
  • Purposive sampling was employed to achieve thematic saturation in qualitative data collection.

Main Results:

  • RA patients' perceptions of oral health are shaped by past dental care experiences and its prioritization relative to RA.
  • Barriers and facilitators to study participation and oral health maintenance were identified.
  • Patients in the control arm provided feedback on acceptable waiting times for periodontal treatment.

Conclusions:

  • Insights into RA patients' oral health experiences and perceptions are crucial for enhancing participation in clinical trials.
  • Addressing identified barriers can improve recruitment and engagement in periodontal research for RA patients.
  • Findings suggest opportunities to improve oral health service access for RA patients facing complex health challenges.