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The textbook traces the evolution of the advertising agency model:
- Pre-1880: Advertising agents were simply middlemen who bought space from newspapers and resold it to advertisers at a profit
- ~1880: N. W. Ayer and Son of Philadelphia introduced the “open contract” โ they would be the advertiser's sole agent and price ad space at cost plus a fixed commission. This eliminated price competition among agencies
- By 1892: Ayer hired the first full-time copywriter; other agencies followed
- 1893: The American Newspaper Publishers Association agreed not to offer discounts to direct advertisers, forcing all advertisers to use agents
- 1901: Curtis Publishing Company (Ladies' Home Journal) adopted the same practice; magazines followed
- 1919: The cost-plus-commission basis was accepted industry-wide, with the commission standardised at 15 percent โ a rate that remained the industry standard for decades
This transformation turned advertising agencies into creative service providers (writing copy, creating logos and slogans, managing artwork) rather than mere space brokers.
This is a classic presentation of Neonatal Respiratory Distress Syndrome (RDS), also called Hyaline Membrane Disease:
- Prematurity (36 weeks โ late preterm)
- Grunting, retractions, nasal flaring, tachypnea
- Ground glass appearance + air bronchograms on CXR = pathognomonic of RDS
Pathophysiology: Deficiency of surfactant (produced by Type II pneumocytes from ~24 weeks, mature by ~35 weeks). Surfactant reduces alveolar surface tension. Without it:
\[\text{Surface tension} \uparrow \Rightarrow \text{Alveolar collapse} \Rightarrow \text{V/Q mismatch} \Rightarrow \text{Hypoxia}\]
- Treatment: Exogenous surfactant (beractant, poractant alfa) via endotracheal tube + respiratory support (CPAP/mechanical ventilation)
- Prevention: Antenatal corticosteroids (betamethasone 12 mg IM ร 2 doses, 24 hrs apart) if delivery expected before 34 weeks โ accelerates fetal lung maturity
Which is a strong electrolyte in aqueous solution?
Strong electrolytes dissociate completely. KI is an ionic salt โ strong electrolyte. Acetic acid, NHโOH, HโCOโ are weak electrolytes.
Which of the following best defines Prime Cost?
Prime Cost $= \text{Direct Materials} + \text{Direct Labour} + \text{Direct Expenses}$. It includes all costs that can be directly traced to a product unit โ not just materials and labour. Option A is the most accurate because it captures all directly chargeable items. Option B is incomplete (it excludes direct expenses). Option C describes total production cost (including overheads). Option D is vague and incorrect.
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