Notes, summaries, assignments, exams, and problems for Primary education

Core Java Programming Concepts Explained

Key Java Definitions

• Exception: An event that disrupts the normal flow of a program's instructions.
• Thread: A lightweight subprocess enabling multitasking within a program.
• Event Handling: Implemented using listeners and event classes that respond to user actions.
• Applet: A small Java program embedded in a web page for interactive content.
• Remote Applets: Used to download and execute applets from a web server over the internet.
• Applet Parameters: Passed to applets using <PARAM> tags in HTML, accessed via the getParameter() method.
• Daemon Thread: Runs in the background for services like garbage collection and ends when main threads finish.
• Thread Synchronization Advantages:
  • Prevents thread interference.
  • Ensures

Animal Farm Vocabulary List

1. Scullery: room for washing dishes
2. Whelped: given birth to
3. Paddock: enclosed field
4. Lurched: staggered
5. Propulsion: motion; driving forward
6. Faculty: mental ability
7. Tyranny: rule by absolute power
8. Windfalls: fruit blown onto the ground
9. Cockerels: young roosters
10. Expelled: forced out of power
11. Indefatigable: tireless; persistent
12. Resolutions: formal statements of decisions
13. Rations: daily food allowance
14. Lowing: mooing
15. Mincing: walking primarily with little steps
16. Knoll: a small hill
17. Gambolled: skipped playfully
18. Plaited: braided; interwoven
19. Trotter: a pig's foot
20. Weaned: stopped nursing
21. Din: loud harsh noises
22. Cunning: slyness; cleverness
23. Ratified: approved; confirmed
24. Publican: a bar or saloon owner
25. Faction: contentious, quarrelsome groups
26. Marshal: bring

Infinitive Versus Verbs + ING

Infinitive (to + verb)

• To state the purpose of an action (e.g., "to accept").
• To explain why something exists (e.g., "to reduce").
• After the adverbs "too" and "enough".

Verbs + ING (Gerund)

• After any preposition.
• As the subject or object of a sentence.
• After verbs such as: admit, avoid, celebrate, delay, enjoy, finish, keep, miss, practise, regret, risk, stop, suggest.
• After expressions like: "It's no (good, worth, use)" or "It's a waste of time" (also includes "can't stand," "help").

Vocabulary: Ambition, Career, Experience, and Job

To achieve a certain ambition, one needs experience to build a career.

• Ambition: achieve, fulfil, realise.
• Career: build, make, pursue, start out on.
• Experience: gain, get, have, look for.
• Job: apply

DC Motor Speed-Torque Characteristics

• Graph Interpretation

  • Y-axis: Speed (N).
  • X-axis: Torque (T).
  • Shape: Linear downward slope (speed decreases as torque increases).

• Speed-Torque Formula

  N=V−IaRaϕN=ϕV−Ia​Ra​​,
  where I_a = armature current, R_a = armature resistance, ϕ = flux.

• Key Performance Points

  • At No Load: High speed, low torque.
  • At Full Load: Low speed, high torque (due to armature reaction).

• Applications

  Used in electric vehicles and cranes for variable speed control.

Working Principle of 3-Phase Induction Motor

• Stator Function

  • A 3-phase AC supply produces a Rotating Magnetic Field (RMF).
  • RMF Speed (Synchronous Speed, N_s): Ns=120fPNs​=P120f​.

• Rotor Operation

  • Conductors (aluminum bars) are cut by the RMF, inducing current (Faraday’s

Respiratory System Basics

Respiratory Key Terms

• Dyspnea: Difficulty breathing
• Orthopnea: Difficulty breathing when lying flat
• Tachypnea: Abnormally fast breathing
• Bradypnea: Abnormally slow breathing
• Hemoptysis: Coughing up blood
• Hypoxia: Tissue oxygen deficiency
• Clubbing: Fingertip rounding due to chronic hypoxia
• Barrel chest: Increased chest diameter often from emphysema
• Cyanosis: Bluish skin or mucous membrane discoloration from low oxygen
• Rales/Crackles: Abnormal lung sounds indicating fluid
• Wheezing: High-pitched whistling from narrowed airways
• Rhonchi: Low-pitched rattling sounds (often due to secretions)
• Productive cough: Cough producing mucus or sputum
• Hypertonia: Increased muscle tone causing stiffness
• Hypotonia: Decreased muscle tone making muscles

1. Create Table Coach

CoachID INT PRIMARY KEY,

CoachName VARCHAR(20) NOT NULL,

Sports VARCHAR(15) NOT NULL,

DOJ DATE NOT NULL,

Gender CHAR(1) NOT NULL,

Salary INT NOT NULL

INSERT INTO Coach (CoachID, CoachName, Sports, DOJ, Gender, Salary)

VALUES

(1001, 'Mulund Gogoi', 'Boxing', '2004-09-01', 'M', 40000),

(1002, 'Arnab Duwara', 'Karate', '1999-10-01', 'M', 60000),

(1003, 'Nayan Bora', 'Arm Wrestling', '2005-02-28', 'M', 50000),

(1004, 'Devesh Hazarika', 'Basketball', '2010-05-05', 'M', 25000),

(1005, 'Chetan Sharma', 'Swimming', '2010-03-31', 'M', 25000),

(1006, 'Lakshmi Devi', 'Boxing', '2012-01-01', 'F', 22000);

3. Queries for Questions:

a) Display the Maximum and Minimum Salary of the Coaches

SELECT MAX(Salary) AS Max_Salary, MIN(Salary) AS Min_Salary

English Connectors and Linkers

1. Reason and Cause

(Razón o causa de algo) →

• Because / as / since (+ sentence)
• Because of / owing to / due to (+ noun)

2. Purpose

(Propósito o finalidad) →

• To / In order to / So as to (+ infinitive)
• In order that / So that (+ sentence with modal verb)

3. Exemplifying

(Aclarar lo que explicamos) →

• For example / for instance
• Such as... / like...

4. Additions

(Para añadir algo) →

• Moreover / Furthermore / Besides (Además)
• In addition to / as well as (+ noun or pronoun)

5. Result or Consequence

(Resultado o consecuencia de una acción) →

• Therefore (Por ello) / Consequently / For this reason / Thus
• As a result of (+ substantive or pronoun)

6. Contrast

→

• However / Nevertheless / On the contrary
• While / Whereas (Sentence with

Unit 3: Financial Consolidation Methods

Global Integration (Consolidation)

• Non-current investments: 0
• Share capital and reserves: Parent company only
• Profit/loss: % Parent + (% Subsidiaries × Profit of subsidiaries)
• External shareholder: % Remaining purchase × (Share capital B + Reserves B + Profit/loss B)
• Goodwill: Price paid - (Share capital B × % B)
• Non-controlling interest: % Remaining purchase × (Share capital B + Reserves B + Profit/loss B)
• Non-current assets: Goodwill + PPE (A and B)
• Investment in A: 0 (due to consolidation)

Proportional Integration (Joint Ventures)

• Non-current investments: 0
• PPE, Current Assets, Liabilities, and Profit/loss: Parent + (Subsidiary × % Purchased)
• Share capital and reserves: Parent company only
• Negative differences

Steps in Root End Surgery

• Local anesthesia and hemostasis
• Management of soft tissue
• Management of hard tissue
• Surgical access (visual and operative)
• Access to root structure
• Periradicular curettage
• Root end resection
• Root end preparation
• Root end filling
• Soft tissue repositioning and suturing
• Post-surgical care

Root End Preparation

Preparing a cavity to receive root end filling.

According to Carr and Bentkover, this involves a Class I preparation at least 3mm into root dentin with walls parallel to and coincident with the anatomic outline of the pulp space.

Key requirements:

1. The apical 3mm of the root canal must be freshly cleaned and shaped.
2. The preparation must be parallel to and coincident with the anatomic outline of the pulp space.
3. Adequate retention form

Mineral Trioxide Aggregate (MTA) Applications

Pulp Therapy

• Pulp capping
• Furcation repair
• Strip perforation repair
• Root resorption repair
• Immature teeth
• Root end filling material

Elements of Pulp Regeneration

Therapy for exposed dental pulps using stem cells and a biofunctional scaffold, inhibiting or eliminating infection to facilitate pulp generation.

Nickel-Titanium (NiTi) Rotary Instruments

Advantages of NiTi Reciprocation

• Mimics manual movement
• Reduces risks associated with continuous rotation in curved canals

Types of Posts

1. Carbon fiber epoxy resin posts
2. Zirconia posts
3. Glass fiber reinforced posts
4. Ultra-high strength polyethylene fiber reinforced posts

Advantages of NiTi Rotary

• Gradual, evenly tapered radicular preparation
• Fewer instruments required
• Reduced