INVESTMENTS Two-Security Portfolio: Return rp =W+W2r2 W Proportion of funds in Security 1 W2 Proportion of funds in Security 2 =Expected return on Security 1

INVESTMENTS h Ealiti Risky Investments with Risk-Free Irrvestrent

Types of market efficiency The weak-form of efficiency: price accurately reflect all information that can be derived by examining market trading data such as past prices, trading volume, short interest rate, etc

Vitamin D roles Facilitate intestinal absorption of calcium and phosphorus Promote renal reabsorption of phosphorus Direct effect on bone deposition and reabsorption of calcium and phosphorus Maintain calcium and phosphorus homeostasis

Overview Definition of Accidental Trauma: Accident, Unexpected, Injuries Physically and/or Psychologically Causes: physical, chemical, and biological factors Main cause of mutilation and death in children globally

Definition of Accidental Trauma: Accident, Unexpected, Injuries Physically and/or Psychologically Causes: physical, chemical, and biological factors Main cause of mutilation and death in children globally

The content of child health care Regular health surveillance >Screening test Counseling and Anticipatory guidance Immunization

Definition Bacteremia: Bacteria invade into blood temporarily with flora <100 CFU/ml in blood XSepticemia or Sepsis: Pathogens (bacteria or fungi) invade into blood, proliferate greatly, and release endotoxin XToxemia: Endotoxin absorbed into blood with no bacteria

Definition BActeremia Bacter ia invade into blood temporar i ly with flora <100 CFU/ml in blood SEpticemia or Seps is Pathogens(bacter ia or fung i)invade into blood prol iferate great ly, and release endotox in Toxemia

动脉导管未闭 (patent ductus arteriosus PDA) 一、占先心病15~20% 二、早产儿PDA占早产儿20% 1750克早产儿占66%