Notes, summaries, assignments, exams, and problems for University

Erosional Base and Graded Sand Units

Erosional base is in the head, and deposition is in the body.

Normal Graded Sand Unit (Ta)

Rapid deposition from suspension.

Planar Stratified Sand Unit (Tb)

Deposition on an upper stage plane bed, indicating flow deceleration, reduction of deposition rate, and establishment of a well-defined bed over which there was both bed load and suspended load movement.

Cross Laminated Ripple Unit (Tc)

Further decrease in flow velocity with an appreciable deposition rate.

The Overlying Planar Laminated Mud Unit (Td)

Deposition from the tail.

The Massive Mud Unit (Te)

Fallout from the turbulent buoyant plume.

Lakes: Palaeoclimate Indicators

Two key features of lakes:

1. They are among our best indicators of continental palaeoclimate.

Mindsets and Learning Theories

Understanding Mindsets

• Fixed Mindset: Individuals believe their intelligence is static, "carved in stone," leading them to question their inherent capability.
• Growth Mindset: Individuals believe their knowledge and abilities are always expanding and growing through continuous learning.

Learning Styles and Limitations

Scientific studies indicate that individuals with different learning styles may perform better when material is presented in a specific way. However, if learning styles limit learning, it is often because individuals believe they are incapable of learning through other methods.

Sleep and Memory Consolidation

Relationship between Sleep and Learning: Sleep helps compile information into more memorable material.... Continue reading "Core Concepts in Psychology and Research Methods" »

Which of the following statements about the relationship between interest rates and bond prices is true?

1. There is an inverse relationship between bond prices and interest rates.
2. There is a direct relationship between bond prices and interest rates.
3. The price of short-term bonds fluctuates more than the price of long-term bonds for a given change in interest rates. (Assuming that coupon rate is the same for both)
4. The price of long-term bonds fluctuates more than the price of short-term bonds for a given change in interest rates. (Assuming that the coupon rate is the same for both)

Answer: I and IV only

Bond Duration

Consider a bond with a face value of $1,000, a coupon rate of 8%, a yield to maturity of 9%, and ten years to maturity. This bond's duration... Continue reading "Relationship between Interest Rates and Bond Prices" »

Jabber JID to Email Conversion

def jid2email(jid):
    email = jid[:jid.find('/')]
    return email

if __name__ == '__main__':
    jabber = '[email protected]/quertyy'
    print(jid2email(jabber))

Lists vs. Tuples

Lists are mutable and can be changed by internal operations, whereas tuples are immutable.

Remove Duplicates from String

def remove_dup(string):
    result = []
    for char in string:
        if char not in result:
            result.append(char)
    return ''.join(result)

Identical Character Count

def count_max(in_string):
    d = dict()
    for c in in_string:
        d[c] = d.get(c, 0) + 1
    return max(d.items(), key=lambda x: x[1])

# Using collections
from collections import Counter
def counter_max(in_string):
    return Counter(in_

Policy as Institutional Output

• Governments bestow legitimacy, universality, and mandatory policies.
• The characteristics of government organizations and institutions influence the types of public policies embraced by officials.
• Certain issues, problems, and interest groups have more weight than others in government.

Process Model

• It conceives the political process as a series of political activities: identification of the problem, establishment of the agenda, formulation, legitimation, implementation, and evaluation.

Group Theory Model

• Policies are the efforts of groups to influence and modify public policies.

Theory of the Elite

• Public policy reflects the interests and values of the elite rather than the demands of the people.
• Change in public policy

1- Intermediaries: Buy products from manufacturers and resell them to consumers.

1. The role of business statistics is to convert data into meaningful info.

How to Teach the Four Skills: Reading, Speaking, Writing, and Listening

a) How to Teach ReadingActually there are three stages in teaching reading:

• Pre-reading: In this stage, the teacher starts by contextualizing the topic of the reading process by using proverbs, quotes, pictures, videos, or short discussions, etc. Then, move to explain vocabulary items that students may encounter in the text. After that, he asks for their predictions about the topic of the text they are going to read.
• While-reading: Teacher gives the text to students and asks them to read it silently and check their predictions (this process called skimming). Then the teacher asks them to read again to answer the comprehension questions (this process called scanning).
• Post-reading:

Muscle spindles stimulate stretch, while Golgi tendon organs stimulate muscle contraction. Cerebellar tremor is characterized by low frequency. Motor pathways begin in the cerebral cortex and brainstem. Lower spinal cord motoneurons innervate skeletal muscles, including extrafusal and intrafusal fibers. Stimulation of muscle spindles or Golgi tendon organs is accomplished through the reticulospinal tract.

Muscle Tone and Movement Disorders

• Hypotonia: Decreased muscle tone
• Dyskinesia: Atypical, unconscious muscle movement
• Hypertonia: Increased muscle tone
• Spasticity: Hyper-contraction of muscles
• Akinesia: Atypical unconscious posture

Cortical Control of Movement

Layer V contains pyramidal neurons. The primary motor cortex contains smaller and fewer... Continue reading "Motor Control: Pathways, Neurons, and Muscle Function" »

Cork, located on Ireland's south coast, is the second-largest city in the Republic of Ireland and the third-largest on the island of Ireland, following Dublin and Belfast. It is the largest city in the province of Munster, with a history dating back to the 6th century.

Origins of Cork

Cork began as a monastic settlement founded by St. Finbar in the 6th century. However, the ancestor of the modern city was established between 915 and 922 by Viking settlers who created a trading community. The Viking leader Ottir Iarla is particularly associated with raiding and conquests in Munster, and the Cogad Gáedel re Gallaib links this to the earliest Viking settlement of Cork. The Norse phase left a legacy of family names, such as Cotter and Coppinger,... Continue reading "The History of Cork: From Viking Roots to Modern Times" »