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相关概念视频

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

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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The Scientific Method in Nursing Process01:18

The Scientific Method in Nursing Process

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The scientific method provides the foundation for any research. It is the most reliable and objective of all forms of gaining knowledge and guides in applying research-based evidence in practice and conducting future research.
When using research findings to change practice, one must understand the process used to guide a study. The scientific method is a systematic, step-by-step process that supports the data's validity, reliability, and generalizability. As a result, findings can be...
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The Sense of Self: Reflected Self-Appraisal and Social Comparison02:57

The Sense of Self: Reflected Self-Appraisal and Social Comparison

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According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
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Reflection of Waves01:07

Reflection of Waves

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When a wave travels from one medium to another, it gets reflected at the boundary of the second medium. A common example of this is when a person yells at a distance from a cliff and hears the echo of their voice. The sound waves (longitudinal waves) traveling in the air are reflected from the bounding cliff. Similarly, flipping one end of a string whose other end is tied to a wall causes a pulse (transverse wave) to travel through the string, which gets reflected upon reaching the wall. In...
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Total Internal Reflection Fluorescence Microscopy01:05

Total Internal Reflection Fluorescence Microscopy

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Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
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A Net Mold-based Method of Scaffold-free Three-Dimensional Cardiac Tissue Creation
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艺术品的创造-一种使用WhatsApp的定性方法:对过程的反思

Zamakhoza Khoza1,2, Sivuyile Khaula2, Mziwethu Gcuma2

  • 1South African Medical Research Council, Pretoria, South Africa.

Health promotion practice
|January 22, 2026
PubMed
概括

年轻的南非人使用视觉方法和WhatsApp分享关于亲密伴侣暴力和艾滋病毒风险的见解. 这种方法揭示了在定性研究中使用社交媒体的好处和挑战.

关键词:
艾滋病病毒 艾滋病病毒 艾滋病病毒在WhatsApp上使用WhatsApp.参与式方法 参与式方法通过摄影诱导的方法.质量上的影响是有质量的.防止暴力 预防暴力视觉人种学视觉人种学年轻人年轻人年轻人

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科学领域:

  • 定性研究方法 定性研究方法
  • 公共卫生 公共卫生
  • 社会学 社会学 社会学

背景情况:

  • 亲密伴侣暴力 (IPV) 和艾滋病毒暴露对全球年轻人构成重大风险.
  • 了解南非年轻人的生活经验对于开发有效的干预措施至关重要.
  • 传统的研究方法可能无法完全捕捉到年轻人的日常生活和风险感知的细微差别.

研究的目的:

  • 探索南非年轻人关于亲密伴侣暴力和艾滋病毒暴露的风险和策略.
  • 评估一种新的基于照片的方法的有效性,称为"人工制造",用于定性数据收集.
  • 评估使用视觉方法和WhatsApp作为数据收集工具的实用性和局限性.

主要方法:

  • 与17名年轻南非人 (年龄在18-24岁) 采用了一种基于照片的调整方法 ("人工制造").
  • 参与者来自城市非正式定居点和KwaZulu-Natal的一个农村.
  • 数据是通过通过WhatsApp共享的文物收集的,反映了日常生活,IPV和艾滋病毒风险.

主要成果:

  • 文物创作促进了年轻参与者的丰富叙述和个人见解的分享.
  • 视觉方法和WhatsApp在参与者参与和数据可访问性方面提供了优势.
  • 挑战包括蜂数据的成本和连接性,特别是在农村地区,影响文物提交.

结论:

  • 视觉方法,增强的工具,如WhatsApp,可以有价值的定性研究与年轻人群.
  • 文物创造过程为推进非传统的定性方法提供了宝贵的教训.
  • 社交媒体平台为深入的社会科学研究提供了机会和局限性.