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Related Concept Videos

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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Concrete mixing ensures a homogenous blend where aggregates are well-coated with cement paste. Concrete mixing is typically done using two main types of mixers: batch and continuous. Batch mixers handle one batch at a time, thoroughly combining materials before discharging and receiving the next batch. In contrast, continuous mixers receive a steady flow of ingredients, mixing them consistently and discharging without interruption. Within batch mixers, tilting drum mixers mix with internal...
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Mixing Time01:19

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The concept of mixing time is significant in producing a uniform concrete mix with the required strength. The mixing period starts once all components are in the mixer. Initially, the mixer is charged with 10% of the water, followed by the consistent addition of solids and then 80% of the water. The remaining water is added later, within the first quarter of the mixing period. The minimum mixing time varies according to the mixer's capacity; for example, mixers with up to 1 cubic yard...
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Ready Mixed Concrete01:26

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Ready-mixed concrete, also known as pre-mixed concrete, is prepared in a centralized plant and then transported in trucks to construction sites where it is ready for placement. This type of concrete is categorized into central-mixed, truck-mixed (or transit-mixed), and shrink-mixed. Central-mixed concrete is entirely prepared at a plant and moved to the site in agitator trucks that rotate at a speed of 2 to 6 rpm. Truck-mixed concrete, on the other hand, has the ingredients batched at the plant...
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Health literacy is an individual's or a community's capacity to comprehend, receive, read, and use relevant healthcare information and services. The World Health Organization (WHO, 2018) defines health literacy as the cognitive and social skills that determine the ability of individuals to gain access to, understand, and use information in ways that promote and maintain good health. As a result, the WHO helps individuals manage long-term health concerns, participate in preventative...
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Evaluating an mHealth App for Health and Well-Being at Work: Mixed-Method Qualitative Study.

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Summary

Mobile health (mHealth) apps show potential for improving worker well-being, but user satisfaction and technology acceptance are key. Evaluating these apps requires careful consideration of methods to capture diverse employee and expert perspectives.

Keywords:
focus groupinterviewmHealthpreventionqualitative research methodstechnology acceptanceusabilityuser satisfactionwell-beingwork

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Area of Science:

  • Occupational Health
  • Digital Health Interventions
  • Human-Computer Interaction

Background:

  • Workplace interventions for health and well-being have limited reach and impact.
  • Mobile health (mHealth) apps are emerging for occupational settings, but evidence is scarce.
  • Understanding user satisfaction and technology acceptance is crucial for successful mHealth adoption in the workplace.

Purpose of the Study:

  • To explore employee and expert views on factors influencing mHealth app use in the workplace.
  • To assess the value of interviews and focus groups for evaluating mHealth apps among employees and experts.

Main Methods:

  • Employees and experts used an mHealth app for at least three weeks.
  • Qualitative data were collected via 22 employee interviews, 3 employee focus groups, and 1 expert focus group.
  • Data were analyzed using a codebook based on user satisfaction and technology acceptance theories.

Main Results:

  • Participant enthusiasm for the mHealth app was moderate.
  • Key themes identified included technology performance, user characteristics, work context, privacy, and autonomy.
  • Qualitative methods yielded distinct insights, with limited overlap between employee and expert findings.

Conclusions:

  • mHealth app adoption depends on system performance, clear benefits, user characteristics, and work context integration.
  • Ensuring employee awareness of privacy rights is essential.
  • Combining multiple qualitative methods enhances mHealth app evaluation in occupational settings.