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Related Concept Videos

Elements and Compounds01:27

Elements and Compounds

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Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
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Periodic Classification of the Elements04:00

Periodic Classification of the Elements

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The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
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Classification of Elements and Compounds02:54

Classification of Elements and Compounds

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Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
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Key Elements for Plant Nutrition02:35

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Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
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Elements: Chemical Symbols and Isotopes02:31

Elements: Chemical Symbols and Isotopes

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A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is used to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
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The Periodic Table and Organismal Elements00:57

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Updated: Jan 29, 2026

Rearing and Long-Term Maintenance of Eristalis tenax Hoverflies for Research Studies
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A long-term case study with sadistically-tinged countertransference elements.

Douglas H Ingram1

  • 1, 4 East 89th Street, #1C, New York, NY, 10128, USA.

American Journal of Psychoanalysis
|February 15, 2019
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Summary
This summary is machine-generated.

This case report details a 20-year psychoanalytically-informed psychotherapy for a man facing obsessive-compulsive disorder, pathological self-effacement, and blindness. It explores managing complex challenges and countertransference dynamics.

Keywords:
blindnesscountertransferencelong-term treatmentobsessive compulsive disorder

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Area of Science:

  • Psychology
  • Psychiatry
  • Psychoanalysis

Background:

  • Presents a long-term case study of psychoanalytically-informed supportive psychotherapy.
  • Focuses on a single male patient navigating complex life challenges over two decades.

Observation:

  • The patient experienced obsessive-compulsive disorder (OCD).
  • Pathological self-effacement with unusual erotic components was a significant issue.
  • Severe visual impairment progressing to blindness presented additional challenges.

Findings:

  • Details the psychotherapeutic treatment process over a 20-year period.
  • Describes the management of co-occurring psychological and physical health challenges.
  • Explores the emergence of sadistically-tinged impulses in the countertransference.

Implications:

  • Highlights the importance of long-term psychotherapeutic relationships in managing chronic conditions.
  • Offers insights into the psychoanalytic treatment of complex, co-occurring disorders.
  • Contributes to understanding countertransference dynamics in challenging clinical cases.