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1(a) Why impure semiconductors are required? Give examples of impurities.

  • Pure (intrinsic) Si/Ge have very low conductivity at room temp.

  • Doping adds controlled carriers → practical conductivity and device action.

  • n-type (donors, 5 valence e⁻): P, As, Sb → majority electrons.

  • p-type (acceptors, 3 valence e⁻): B, Ga, In → majority holes.

  • Used to engineer diodes, BJTs, JFETs, MOSFETs, resistors, etc.

    1(b) Why BJT is current-controlled and FET is voltage-controlled?

    • BJT: IC≈βIB

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Notes

## Trial Procedure Before a Court of Session
When a charge sheet is filed before the Chief Judicial Magistrate for an offense triable exclusively by a Court of Session, such as rape, the following procedure is typically followed:

### Committal to Court of Session
1. The Chief Judicial Magistrate commits the case to the Court of Session after ensuring that the offense is indeed triable by the Sessions Court.
2. The Court of Session then takes cognizance of the offense and proceeds with the trial.

##

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Leading and management

Crib Sheet – Brenda Brown (76 y/o, COPD & leg ulcers)

Patient Details / Condition

  • Name: Brenda Brown, 76 years
  • PMH: COPD (emphysema), leg ulcers, smoker
  • Social: Lives alone, widow, reduced family contact, poor nutrition, low appetite, social isolation, risk of self-neglect
  • Concerns: Breathlessness, recurrent infections, immobility, sore bottom (pressure damage risk), falls, unsafe smoking, hoarding magazines

National Early Warning Score (NEWS2)

  • Parameters: RR, SpO₂, O₂
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Pmr all

Introduction to Physical Medicine and Rehabilitation

Definition

Physical Medicine and Rehabilitation (PM&R), also called physiatry, is a branch of medicine that aims to enhance and restore functional ability, independence, and quality of life to people with physical impairments or disabilities. It focuses on the whole person rather than just the disease, integrating medical treatment with physical, psychological, and social rehabilitation.

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Historical Background

PM&R began developing

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Unreliability of Memory, Tony, the narrator, constantly questions his own memories. He says, “What you end up remembering isn't always the same as what you have witnessed.” Example; Barnes explores how memory is selective, distorted by time, emotion, and self-protection. This reflects a postmodern distrust of "truth" or any fixed narrative.

Subjective Truth & History; The novel challenges the idea that history is objective or complete. History, both personal and historical, is shown as being

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Oral pathology

Problem: Classify and Explain Dentigerous Cyst

Solution:
### **Classification of Cysts**

Cysts are pathological cavities, often filled with fluid or semi-solid material, and lined by epithelium. In the oral and maxillofacial region, they are primarily classified based on their origin.

1.  **Odontogenic Cysts (Derived from Tooth-Forming Tissues)**
    -   **Developmental Cysts:** Arise from remnants of the epithelial tissues involved in tooth development (odontogenesis).
        -   **Dentigerous...

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Science exam

Expanded Physics Concepts

Force

  • Definition: A push or pull that changes the motion of an object.
  • Unit: Newton (N).
  • Example: Pushing a shopping cart.

Velocity

  • Definition: Speed in a given direction.
  • Formula: v=d/tv = d/tv=d/t.
  • Example: 20 m/s east.

Speed vs Velocity

  • Speed = how fast (no direction).
  • Velocity = speed with direction.
  • Example: Speed = 60 km/h, Velocity = 60 km/h north.

Displacement

  • Definition: The straight-line distance and direction from start to finish.
  • Example: Walk 3 km east
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S.E. Hinton’s 1967 novel, The Outsiders, presents a compelling exploration of how teenage identity is shaped and tied to class division. Through the construction of character, setting, and language, the novel positions readers to view that teenage identity is influenced by social and economic factors. This analysis will examine how the characterisation of characters reveals self worth nd social expectations based on class, how the setting reflects the influence of group divisions, and how language

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About Pmr

*Physical Medicine and Rehabilitation (PM&R)*, also known as Physiatry, is a branch of medicine that focuses on restoring function, improving quality of life, and managing pain in patients with physical disabilities, impairments, or chronic conditions.

*Key Components:*

1. *Comprehensive Assessment*: Evaluating patients' physical, emotional, and social needs.
2. *Personalized Treatment Plans*: Developing tailored plans to address specific goals and needs.
3. *Multidisciplinary Approach*: Collaborating

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