A survey collects information from a sample of a population to answer research objectives. Key steps in conducting a survey include defining questions and sampling strategy, designing and testing a questionnaire, collecting and validating data, analyzing results, and reporting conclusions. Conducting a representative, unbiased survey involves careful planning at each stage to ensure precision, validity, and ethical standards are maintained.
How to design surveys; describes differences between approaches to measuring awareness, opinions, perceptions, behaviors, needs and attitudes; describes roles of survey sponsor and researcher.
Any question that we want answered and any assumption or assertion that we want to challenge or investigate can become a research problem or a research topic for our study
How to design surveys; describes differences between approaches to measuring awareness, opinions, perceptions, behaviors, needs and attitudes; describes roles of survey sponsor and researcher.
Any question that we want answered and any assumption or assertion that we want to challenge or investigate can become a research problem or a research topic for our study
All the concepts related to research design are covered in this PPT Presentation.Research Design being an integral and crucial part of Research majorly deals with Parametric and non-parametric test, Type 1 and type 2 error, level of significance etc.It helps in ascertaining which research technique is used in which situation.
Dr. Lani discusses all aspects of the dissertation methodology, including: selecting a survey instrument, population, reliability, validity, data analysis plan, and IRB/URR considerations.
ABDOMINAL TRAUMA in pediatrics part one.drhasanrajab
Abdominal trauma in pediatrics refers to injuries or damage to the abdominal organs in children. It can occur due to various causes such as falls, motor vehicle accidents, sports-related injuries, and physical abuse. Children are more vulnerable to abdominal trauma due to their unique anatomical and physiological characteristics. Signs and symptoms include abdominal pain, tenderness, distension, vomiting, and signs of shock. Diagnosis involves physical examination, imaging studies, and laboratory tests. Management depends on the severity and may involve conservative treatment or surgical intervention. Prevention is crucial in reducing the incidence of abdominal trauma in children.
All the concepts related to research design are covered in this PPT Presentation.Research Design being an integral and crucial part of Research majorly deals with Parametric and non-parametric test, Type 1 and type 2 error, level of significance etc.It helps in ascertaining which research technique is used in which situation.
Dr. Lani discusses all aspects of the dissertation methodology, including: selecting a survey instrument, population, reliability, validity, data analysis plan, and IRB/URR considerations.
ABDOMINAL TRAUMA in pediatrics part one.drhasanrajab
Abdominal trauma in pediatrics refers to injuries or damage to the abdominal organs in children. It can occur due to various causes such as falls, motor vehicle accidents, sports-related injuries, and physical abuse. Children are more vulnerable to abdominal trauma due to their unique anatomical and physiological characteristics. Signs and symptoms include abdominal pain, tenderness, distension, vomiting, and signs of shock. Diagnosis involves physical examination, imaging studies, and laboratory tests. Management depends on the severity and may involve conservative treatment or surgical intervention. Prevention is crucial in reducing the incidence of abdominal trauma in children.
Muktapishti is a traditional Ayurvedic preparation made from Shoditha Mukta (Purified Pearl), is believed to help regulate thyroid function and reduce symptoms of hyperthyroidism due to its cooling and balancing properties. Clinical evidence on its efficacy remains limited, necessitating further research to validate its therapeutic benefits.
Local Advanced Lung Cancer: Artificial Intelligence, Synergetics, Complex Sys...Oleg Kshivets
Overall life span (LS) was 1671.7±1721.6 days and cumulative 5YS reached 62.4%, 10 years – 50.4%, 20 years – 44.6%. 94 LCP lived more than 5 years without cancer (LS=2958.6±1723.6 days), 22 – more than 10 years (LS=5571±1841.8 days). 67 LCP died because of LC (LS=471.9±344 days). AT significantly improved 5YS (68% vs. 53.7%) (P=0.028 by log-rank test). Cox modeling displayed that 5YS of LCP significantly depended on: N0-N12, T3-4, blood cell circuit, cell ratio factors (ratio between cancer cells-CC and blood cells subpopulations), LC cell dynamics, recalcification time, heparin tolerance, prothrombin index, protein, AT, procedure type (P=0.000-0.031). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and N0-12 (rank=1), thrombocytes/CC (rank=2), segmented neutrophils/CC (3), eosinophils/CC (4), erythrocytes/CC (5), healthy cells/CC (6), lymphocytes/CC (7), stick neutrophils/CC (8), leucocytes/CC (9), monocytes/CC (10). Correct prediction of 5YS was 100% by neural networks computing (error=0.000; area under ROC curve=1.0).
- Video recording of this lecture in English language: https://youtu.be/kqbnxVAZs-0
- Video recording of this lecture in Arabic language: https://youtu.be/SINlygW1Mpc
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Here is the updated list of Top Best Ayurvedic medicine for Gas and Indigestion and those are Gas-O-Go Syp for Dyspepsia | Lavizyme Syrup for Acidity | Yumzyme Hepatoprotective Capsules etc
1. What is a Survey ?
A Survey collects information
Is a Census from all the population
Is a Poll if for political information
Is a Sample Survey if from just a sample
of a population
2. Conditions for a Survey
• Answer the Objectives
• Be Unbiased, Accurate
• Be Generalizable
• Be Ethical
• Be Economical
3. Before a Survey
• Define the Questions to be answer.
• Define the Sampling strategy.
• Design and Test the Questionnaire.
• Train the field workers.
• Define the technique for
crossvalidation.
• Define the final Analysis.
4. During the Survey
- Verify and crossvalidate the Questionnaire
- Check Time table and Budget
After the Survey
- Crosscheck again all the data
- Perform the main analysis
- Perform any exploratory data analysis.
5. The Question
The first task is to clearly and
concisely define the Main
Question of interest as well as
the Target Population of the
study.
11. Internal Validity
How to check if the subject
answers truthfully?
- Ask the same question twice?
Marital status
Spouse age
- Check frequency versus known data
12. External validity
Are the appropriate questions asked?
Are the questions understandable by
all the subjects in the sample.
14. Interviewers in Follow
Up Studies
• Preferably be the same.
• If not the training must be the same.
• They must be comparable.
15. Preparing for Validation
• Lists of valid responses for each
question.
• Define code for: Missing values.
• Not applicable.
• Do not know.
• Automatically set the ‘Not applicable’
based on some previous question.
16. Definition of the Analysis
• Specific Objective 1
- Test to answer specific objective 1.
• Specific Objective 2
- Test to answer specific objective 2.
• Secondary objectives
- Test to investigate secondary
objectives.
• Exploratory Data Analysis.
17. During the Survey
• Collect questionnaires daily.
• Check yesterday questionnaires for
missing or invalid answers.
• Re-interview invalid questionnaires
18. The Time Table
The often forgotten tasks.
• Is the number of answered
questionnaires according to the
predicted for this date?.
• Is more time needed to fill up the
required number of questionnaires?
• Are more interviewers needed to
complete the task in time?
19. The Interim View
• Crosstabulate the descriptor variables.
i.e. age, gender, occupation, etc.
• Are they similar to the known ( or
assumed) distribution in the population?
• Are we getting a representative or a
biased sample?.
• Do we need more advertising of the
study in some sectors of the population?
20. After the Survey
• Check for outliers in all variables,
both singly and in logical pairs.
• Are the distributions and
scattergrams plausible ?
• Decide whether to impute or to
eliminate the clear mistakes.
21. Statistical Analysis
Main Analysis
Description of the sample
Predefined Main Statistical analysis
Statistical significance of results
Exploratory Analysis
Describe test / procedure used
Report results
22. The Report
• List of Objectives.
• Objectives achieved.
• Sample size estimated.
• Response rate in the sample.
• Main Statistical Analysis.
• Results with significance or Confidence
Interval of estimators.
• Statistical Power of the tests performed.
• Results of the Exploratory Data Analysis
23. Conclusions
• What was achieved.
• Did the main Analysis agree with
predictions and if not why?
• Interpretation of the results of the main
Analysis.
• Were any new hypothesis generated by
the EDA.
• Interpretation of the findings by the
EDA.
• Ideas for new research.