Notes, abstracts, papers, exams and problems of Baccalaureate

PL/SQL

PL/SQL is a procedural language designed specifically to embrace SQL statements within its syntax. PL/SQL program units are compiled by the Oracle Database server and stored inside the database. And at run-time, both PL/SQL and SQL run within the same server process, bringing optimal efficiency. PL/SQL includes procedural language elements like conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variable of those types and triggers. It can support Array and handle exceptions (runtime errors).

Differences between SQL and PL/SQL

• SQL is a single query that is used to perform DML and DDL operations.
• PL/SQL is a block of codes that used to write the entire program blocks/ procedure/ function,

What is Arbitration?

Arbitration is a legal process used to resolve disputes between parties outside of the traditional court system. It is a form of alternative dispute resolution (ADR) in which the parties involved in a dispute agree to have a neutral third party, known as an arbitrator or arbitral tribunal, make a binding decision to settle their dispute. Arbitration is often chosen as an alternative to litigation for various reasons, including its potential for faster resolution, greater privacy, and lower costs compared to going to court.

Key Elements of Arbitration:

1. Voluntary Agreement: Arbitration is typically based on the voluntary agreement of the parties involved. They may choose to arbitrate a dispute either before or after a dispute

Bronfenbrenner: Social/Bio Ecological NO STAGES

The Russian Nesting Doll

Used in the classroom and everyday life

Ignores the roles of cognition and is hard to back up with research

Microsystem:

The people and objects in an individual's immediate environment

Mesosystem:

Connections between microsystems

Exosystem:

Social settings that a person may not experience firsthand but that still influence development

Macrosystem:

Consists of cultural values, laws, customs, and resources

Connected to Piaget

Piaget: Cognitive STAGES

Jaffa Cakes, water beaker, coins

Underestimating children abilities, impact of culture

Sensorimotor:

Birth to 2 years, during which infants know the world mostly in terms of their sensory impressions and motor activities

Preoperational:

2 to 7... Continue reading "Developmental Theories: A Comparison of Bronfenbrenner, Piaget, Vygotsky, Erikson, and Kohlberg" »

How does Chimamanda define 'the single story'?

She defines 'the single story' as the tendency to reduce individuals or groups to a single narrative or perspective, often based on stereotypes, preconceived notions, or limited information. A single story shows a group of people as one thing and only one thing over and over again until that is what they become.

Name four 'single stories' that she discusses in this talk

Chimamanda's roommate who had a single story of Africa. She had a single story of catastrophe. In this single story, Africans weren't similar to her at all. She just felt pity for them. She stereotyped Chimamanda as a woman who shouldn't know how to speak English, listened to tribal music, and not well-known authors...

Chimamanda's... Continue reading "Chimamanda Ngozi Adichie: The Danger of Single Stories" »

Binge-Watching Effects

During lockdowns, binge-watching served as a distraction from negativity and filled excessive spare time, becoming a coping mechanism for overthinking.

However, excessive binge-watching can lead to mental health issues like insomnia and anxiety. Humans are social creatures, and compulsive binge-watching combined with social media overuse can cause loneliness and depression.

While occasional TV watching is relaxing, daily marathons risk addiction and social withdrawal. The negative effects often outweigh stress relief. It's crucial to find a balance in TV consumption.

Pollution's Impact on Wildlife

Introduction

This report examines pollution's effects on local wildlife and proposes improvements and regulations to protect the... Continue reading "Binge-Watching and Pollution: Impacts on Mental and Environmental Health" »

Boston Housing Data Analysis

library(mlbench)
install.packages("dplyr")
library(dplyr)
library(ggplot2)
library(reshape2)
data("BostonHousing")
housing <- BostonHousing
str(housing)

housing %>%   ggplot(aes(x = medv)) +
  stat_density() +
  labs(x = "Median Value ($1000s)", y = "Density", title = "Density Plot of Median Value House Price in Boston") +
  theme_minimal()

summary(housing$medv)

housing %>%   select(c(crim, rm, age, rad, tax, lstat, medv)) %>%   melt( id.vars = "medv") %>%   ggplot(aes(x = value, y = medv, colour = variable)) +
  geom_point(alpha = 0.7) +
  stat_smooth(aes(colour = "black")) +
  facet_wrap(~variable, scales = "free", ncol = 2) +
  labs(x = "Variable Value", y = "Median House Price ($1000s)") +
  theme_minimal(

DIVIDEND POLICY

Factors Influencing Dividend Decisions

Rate of Asset Expansion

Companies planning significant expansion may retain earnings to finance growth, avoiding the cost and time involved in raising new capital.

Profit Rate

A company's profitability directly impacts its ability to pay dividends. Higher profits lead to more available cash for distribution to shareholders.

Earnings Stability

Companies with stable earnings are more likely to consistently pay dividends compared to those with volatile earnings.

Access to Capital Markets

Easy access to capital markets allows companies to raise funds for expansion without retaining earnings, providing flexibility in dividend policy.

Control and Ownership

Management may retain earnings to maintain control... Continue reading "Understanding Dividend Policies: Factors, Models, and Strategies" »

Guided dictation is an effective way to assess the skill of writing. It challenges students' listening comprehension, grammar, vocabulary, and spelling abilities. The process encourages active engagement and provides immediate feedback, enhancing writing proficiency. Moreover, guided dictation promotes language acquisition by exposing learners to authentic spoken language. Collaborative learning can be assessed effectively through peer evaluation, promoting self-reflection and fairness. Formative assessment aims to inform and guide teaching and learning, while summative assessment measures overall mastery. Continuous assessment provides ongoing feedback and supports learning throughout the process. TEFL benefits from informal assessments, promoting... Continue reading "Effective Assessment Methods for Writing Skills: Guided Dictation and Collaborative Learning" »

Productivity

Productivity is the measure of output relative to the inputs used to create it.

Productivity Formulas

General Productivity: Quantity of Output / Quantity of Input

Labour Productivity: Output over a Given Period / Number of Employees

Production Methods

Lean Production

Lean production encompasses techniques used to minimize waste and maximize efficiency. This can involve reducing product development time and accelerating time to market.

Kaizen

Kaizen, a Japanese term meaning "continuous improvement", emphasizes eliminating waste to enhance efficiency.

Just-In-Time (JIT)

Just-In-Time (JIT) is a production method that aims to minimize or eliminate the need for finished goods inventory. Supplies arrive precisely when needed for production.

Production