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Related Concept Videos

Fischer Projections02:18

Fischer Projections

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Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines. While...
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Different notations are used to represent the three-dimensional structure of molecules on two-dimensional surfaces. One of the most commonly used representations is the dash-wedge formula. The dashed wedges, solid wedges, and the plane lines indicate the groups situated behind the plane, coming out of the plane, and in the plane, respectively.
The organic molecules rotate across the single bonds leading to numerous temporary three-dimensional structures of varying energy known as...
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Coordinates and Map Projections01:29

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Coordinates and map projections are essential tools in accurately representing the Earth's surface for various applications, ranging from navigation to spatial analysis. The latitude and longitude coordinate system is a universally recognized framework for defining locations. Latitude specifies the distance of a point north or south of the equator, measured in degrees from 0° at the equator to 90° at the poles. Longitude indicates a location's position east or west of the prime meridian,...
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Structure of Lipids03:38

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Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic...
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Bacterial RNA Polymerase00:43

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Unlike eukaryotes, bacteria use a single RNA Polymerase (RNAP) to transcribe all genes. The different subunits of bacterial RNAPhave distinct functions. The multisubunit structure of the bacterial RNAP helps the enzyme to maintain catalytic function, facilitate assembly, interact with DNA and RNA, and self-regulate its activity.
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Genomics02:02

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Related Experiment Video

Updated: Feb 15, 2026

Generation of Comprehensive Thoracic Oncology Database - Tool for Translational Research
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Psychosocial oncology: The Omega Project.

Matthew Loscalzo1, Linda A Klein2

  • 1City of Hope National Medical Center, Duarte, CA, USA.

Death Studies
|February 14, 2026
PubMed
Summary

J. William Worden

Area of Science:

  • Palliative Care and End-of-Life Studies
  • Psychosocial Oncology
  • Hospice Movement Development

Background:

  • The Omega Project (1968-1986) investigated end-of-life care.
  • J. William Worden's insights are central to this discussion.
  • The study bridges historical research with contemporary fields.

Purpose of the Study:

  • To summarize the key findings and phases of the Omega Project.
  • To explore the evolution of psychosocial oncology and palliative care.
  • To present Worden's reflections on hospice care, religion, loss, and advice for students.

Main Methods:

  • Interview with J. William Worden.
  • Retrospective analysis of the Omega Project.
  • Discussion of related fields like psychosocial oncology and palliative care.

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Main Results:

  • The Omega Project identified four distinct phases in end-of-life care study.
  • Key concepts emerged regarding patient populations and project goals.
  • The interview covers the development of hospice care, religion's role in coping, and personal loss.

Conclusions:

  • Worden's work significantly influenced end-of-life care research and practice.
  • The discussion highlights the interconnectedness of palliative care, psychosocial oncology, and hospice.
  • Advice is offered to emerging professionals in medical and graduate studies.