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Related Concept Videos

Qualitative Analysis03:46

Qualitative Analysis

25.2K
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

Qualitative Analysis

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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.
There are two main approaches to qualitative analysis:...
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Decision Making01:20

Decision Making

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Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
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Decision Making: P-value Method01:09

Decision Making: P-value Method

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The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim  is also stated. These statements can act as null and alternative hypotheses:  a null hypothesis would be a neutral statement while the alternative hypothesis can...
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Transcription Factors02:16

Transcription Factors

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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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Decision Making: Traditional Method01:14

Decision Making: Traditional Method

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The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
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Related Experiment Video

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Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
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Factors Affecting Surgical Decision-making-A Qualitative Study.

Caroline Gunaratnam1, Mark Bernstein1

  • 1Division of Neurosurgery, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Canada.

Rambam Maimonides Medical Journal
|February 7, 2018
PubMed
Summary
This summary is machine-generated.

When guidelines or evidence are lacking, surgeons rely on patient condition, institutional, and personal factors for surgical decisions. Surgeon-specific factors often hold the most influence in these complex choices.

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Area of Science:

  • Surgical Decision-Making
  • Qualitative Research in Medicine
  • Healthcare Management

Background:

  • Surgeons often face treatment selection dilemmas without clear guidelines or high-level evidence.
  • Previous studies have explored treatment variability but not surgeons' decision-making factors.
  • This study investigates the influences shaping surgical treatment choices.

Purpose of the Study:

  • To explore the factors influencing surgeons' choices between different surgical treatment options.
  • To understand the thought processes behind surgical decision-making when evidence is limited.

Main Methods:

  • Conducted semi-structured interviews with 32 senior surgeons, fellows, and residents.
  • Utilized thematic analysis with open and axial coding on transcribed interviews.
  • Data collected from University of Toronto teaching hospitals.

Main Results:

  • Identified five key factor groups: medical condition, information, institutional, patient, and surgeon.
  • Surgeon-specific factors were found to be highly influential when guidelines or Class 1 evidence were absent.
  • Other significant factors included patient condition, institutional context, and patient characteristics.

Conclusions:

  • This is the first qualitative study examining surgeons' perspectives on factors influencing surgical treatment selection.
  • Surgeon's personal factors play a critical role in decision-making, especially in evidence-limited situations.
  • Understanding these influences can inform better surgical practice and training.