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Related Concept Videos

Coordination Number and Geometry02:57

Coordination Number and Geometry

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For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
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Coordination Compounds and Nomenclature02:54

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In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
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Lattice Centering and Coordination Number02:33

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The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
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Short-distance Transport of Resources02:12

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Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
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Elements Crucial for Effective Psychotherapy01:25

Elements Crucial for Effective Psychotherapy

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Research has highlighted several critical factors that influence the effectiveness of psychotherapy, such as the therapeutic alliance, the therapist, and the client.
The Therapeutic Alliance
The therapeutic alliance refers to the relationship between the therapist and the client. The alliance strengthens when the therapist and the client engage in a nurturing, supportive, trusting, empathetic, and respectful relationship, improving therapeutic outcomes. Therapists must monitor this relationship...
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Equations of Motion: Rectangular Coordinates and Cylindrical Coordinates01:21

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Understanding the motion of particles is a fundamental aspect of classical mechanics, and the choice of the coordinate system plays a pivotal role in unraveling the complexities of their dynamics.
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[Clinical research coordinators: a crucial resource.]

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Clinical research coordinators are vital for trial quality and ethics. However, a lack of institutional recognition in Italy is causing skilled professionals to leave, risking research competitiveness and patient access to new therapies.

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Area of Science:

  • Clinical research management
  • Healthcare administration
  • Regulatory affairs

Background:

  • Clinical trials are increasingly complex, requiring specialized infrastructures and personnel.
  • The clinical research coordinator (CRC) is essential for managing trial workflows, ensuring ethical standards, and maintaining quality.
  • Existing literature confirms the CRC's significant contribution to documentary, administrative, ethical, and quality aspects of research.

Purpose of the Study:

  • To highlight the critical role of CRCs in clinical research.
  • To address the lack of institutional and economic recognition for CRCs within the Italian National Health System.
  • To examine the consequences of this lack of recognition on Italian clinical research and patient access to innovative therapies.

Main Methods:

  • Literature review on the role and impact of CRCs.
  • Analysis of the current institutional and economic status of CRCs in Italy.
  • Assessment of the potential negative effects of CRC migration on the competitiveness of Italian clinical research.

Main Results:

  • CRCs are crucial for high ethical and qualitative standards in clinical trials.
  • There is a significant lack of institutional recognition and economic agreements for CRCs in Italy.
  • Qualified CRCs are migrating to contract research organizations and pharmaceutical companies.

Conclusions:

  • The absence of formal recognition and economic agreements for CRCs threatens the competitiveness of Italian clinical research.
  • This migration of skilled personnel could hinder patient access to innovative experimental therapies, raising ethical concerns.
  • Urgent institutional recognition and economic valorization of the CRC role are needed to safeguard the future of clinical research in Italy.