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QTM mid-term 2
Experiments
Why are randomized experiments so desirable?
Randomization breaks the link between treatment assignment and confounders, making treated and untreated groups exchangeable. This guarantees unbiased estimates of causal effects (on average) because any differences in outcomes can be attributed to the treatment rather than selection.
Why might we not be able to run a randomized experiment?
They may be unethical (e.g., denying beneficial treatments), infeasible (cost, logistics), illegal, or...
theo 2 midterm
Unit 1: Introduction NT & Christology: parable- short story that uses everyday images to communicate religious messages, both reveal and conceal, different types of parables (The Surprise of God’s Kingdom, God’s upside down Kingdom, God’s Kingdom requires a decision) King Herod- ambitious, brutal, and successful, rebuilt the Temple in Jerusalem, allowed local rulers to oversee small areas as long as they pledged their allegiance to Rome, maintained strict control Pontius Pilate- Roman...
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This section covers the core combinational circuits that form the backbone of digital systems. Mastery of their design, truth tables, and applications is essential for Unit III.
1. ➕ Arithmetic Circuits: Full Adder and Full Subtractor
These circuits perform the fundamental binary arithmetic operations.
A. Full Adder (FA)
A Full Adder is a combinational logic circuit that performs the addition of three single-bit binary numbers: two operands (A and B) and a carry-in (C_{in}) from a previous stage.
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🔄 Flip-Flop Conversion: Steps and Examples
The goal of flip-flop conversion is to use an available flip-flop (the basic component you have) along with a combinational logic circuit to make the overall system behave like a required flip-flop (the target).
General Steps for Conversion
* Identify Available and Required FFs:
* Required FF (Target): The one you want to emulate (e.g., T-FF). Its inputs are the external inputs for the final circuit.
* Available FF (Source): The one you are using
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ENERGY & ATP
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Energy = ability to do work
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Food contains chemical energy in bonds
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When bonds break → energy is released
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ATP is the main energy-carrying molecule cells use
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Energy is stored in ATP’s phosphate bonds
ENZYMES
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Enzymes = biological catalysts
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Speed up chemical reactions in cells
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Lower activation energy
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Each enzyme works with one specific substrate (lock & key)
- Wrong temperature or pH → enzyme denatures (shape changes, stops working)
WATER / HYDROLYSIS
e business
Week 1 & 2
1. Understand the concept of e-business and explain how it differs from e-commerce in terms of scope, activities, and strategic focus.
: e-Commerce (Electronic Commerce) refers to digitally enabled commercial transactions across organizations/individuals, encompassing the online buying/selling of goods and services.
e-Business refers to the digital enablement of business processes and transactions not only across firms but also within a firm through Information Systems.
Scope: e-
...FIN 240 Final
| Secured Loans: loans backed by an asset | Common law and statutory law deal with what to do in case of default | Liens: a claim against specific property to satisfy debt | Mechanics liens: a security interest given to someone who provides work or improvements to a specific parcel of property | Judgement liens: a legal claim placed on a debtor’s property after a court issues a monetary judgment against them. It ensures the creditor gets paid if the debtor sells or refinances their property. |
...grewal study
1.1 Ruler Postulate- the points on a line can be matched one to one with the real numbers. The real number that corresponds to a point is the coordinate of the point
1.2 Segment Addition Postulate- If B is between A and C, then AB + BC = AC
1.3 Protractor Postulate- Consider OB and a point A on one side of OB. The rays of the form OA can be matched on to one with the real numbers. From 0 to 180
1.4 Angle Addition Postulate- If P is the interior of <RST, then the measure of <RST is equal...
CHYS cheat sheet
CHYS 1F90 - COMPREHENSIVE EXAM CHEAT SHEET
PART 1: FOUNDATIONS OF DEVELOPMENT
A. Genetics & Prenatal Development
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Conception: 46 chromosomes (23 from each parent)
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Gene Expression: Dominant vs. recessive genes, polygenic inheritance
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Chromosomal Abnormalities:
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Down Syndrome (Trisomy 21)
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Turner Syndrome (X--), Klinefelter (XXY)
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Caused by inherited or de novo mutations
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Prenatal Stages:
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Zygote: conception to implantation
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Embryo: weeks 3-8 (organ development)
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Fetus: weeks 9-birth
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