A **coronavirus** is not just one single bug; it is actually a large family of viruses. They get their name because under a microscope, they look like they are wearing a spiked crown—**"corona"** means crown in Latin.
While many coronaviruses only cause mild illnesses like the common cold, a few rare types can jump from animals to humans and cause severe respiratory infections.
### Key Types of Coronaviruses
Most of the time, humans contract mild "community" coronaviruses that cause basic cold symptoms.
1.Market failure occurs when the free market fails to allocate resources efficiently, causing negative effects on society.
Obesity can be seen as market failure because consuming unhealthy foods high in sugar and fat creates negative externalities. For example, rising obesity increases healthcare costs for governments and taxpayers due to diseases such as type-2 diabetes and heart disease. This means the social costs of consuming unhealthy food are greater than the private costs paid by consumers.
Resistência Inicial : Começou com formas intelectuais e de imprensa que contestavam o poder colonial português.
Geração Nativista (Eugénio Tavares) : Representa a primeira crise sociopolítica, focada no sentimento de pertença às ilhas e na exigência de igualdade jurídica face aos portugueses da metrópole.
Movimento Claridoso (Anos 30) : Fundamental para a afirmação da identidade nacional
LECTURE 1: INTRODUCTION & SECURITY CONCEPTS
CIA Triad:
- Confidentiality: Limits access to authorized users. Breach = unauthorized disclosure.
- Integrity: Prevents unauthorized modification. Breach = altered document.
- Availability: Ensures timely access. Breach = DoS attack.
Additional Objectives:
- Authenticity: Verifies data/sender is real and trustworthy
- Accountability: Actions traceable to specific entities
- Non-repudiation: Cannot deny actions (digital signatures)
**Kerckhoffs's Principle:...
drug metabolism is biochemical process that convert drug into metabolites after adulting their solubility or toxicity●The conversion of drug from one chemical to another also called biotransformation AIM: to convert lipid soluble to water soluble polar drug to avoide reabsorption in renal tubules and help in excretion remove the drug form body ●most of the drug are lipid soluble so it can be Excreted out through metabolism but some drugs are hydrophilic are less biotransformed and Excreted
NUMS - 17 / 3 # 5.6* 17 // 3 # 5 17 % 3 # returns remainder 2 ** 7 # exp a += 2 # shorthand for a = a + 2 (also -= *= //=) abs(-3.5) # absolute value round (3.56, 1) # round 1 d.p max(3.56, 4.57) # largest number STRINGS - 'spam eggs' # single quotes 'doesn\'t' or "doesn't" print(\n) # newline character F STR - f'Price {cost:.2f}' f'{ratio:.2%}' TYPES int # whole float # decimal str # seq of characters e.g. "hello" bool # T or F input() # prompts viewer, records answer as a string int(
1. Definition A Pooling Layer is a down-sampling layer in a Convolutional Neural Network (CNN) usually placed after a Convolutional Layer.It reduces the spatial dimensions (Width $\times$ Height) of the input feature maps while retaining the most critical structural information.2. Types of Pooling LayersMax Pooling:Extracts the maximum value from the region covered by the sliding filter. Purpose: Captures the most dominant/prominent features like sharp edges and bright pixels.Average Pooling: Computes
STOCKS: A stock is worth what you expect to receive from it in the future, brought back to today’s dollars. With the dividend growth model, that future income is mainly the future dividends. Stock value = present value of future dividends/income. A stock gives you return in two ways: Dividend yield - Money the company pays you while you own the stock. Capital gains yielD - Money you make if the stock price goes up. So: Total Return=Dividend Yield+Capital Gains. Beginning stock price = $50. Ending...
**1. Convertissez les équivalents russes en ces expressions**
1. Il est maigre comme un clou. → **худой как щепка**
2. Elle est blonde comme les blés. → **светловолосая как колосья пшеницы** (или просто «золотистая блондинка»)
3. Perdre le nord. → **потерять голову / растеряться**
4. Ce n’est pas la mer à boire → **это не бог весть что / это не так уж трудно*