Learn about semivariance, a key metric for assessing a portfolio’s downside risk. Understand its formula and how to calculate potential negative variations below the mean.

Learn how using historical data, instead of standard deviation, offers a more accurate assessment of stock volatility and risk management strategies.

A new AI-based system can generate high-resolution soybean yield maps across Brazil using only limited local data, improving ...

To address the challenges of delayed response and insufficient regulation accuracy in pumped storage systems under high-penetration renewable energy scenarios, this paper proposes a real-time control ...

As the planet warms, summers are getting hotter in most major U.S. cities. According to new Climate Central analysis, summer heat is also extending into fall, bringing a longer season of heat-related ...

Abstract: Transit time ultrasonic flowmeters offer a variety of advantages over other flowmetry methods; including low pressure loss, no moving parts, self-diagnosing capabilities, and possibility of ...

Objective: This study evaluated the performance of the SiJoy GS1 Continuous Glucose Monitor (CGM) system by analyzing the time lag between plasma glucose (PG) and CGM measurements during an Oral ...

Bitcoin institutional investment undergoes an instant reversal thanks to BTC price rises, with daily ETF inflows standing out in 2025 and further back. ETF performance remains tightly dependent on BTC ...

The Volkswagen Group, which includes Volkswagen, Audi, Porsche, Skoda, Seat, Cupra, and more, reported 2,243,700 global vehicle sales during the second quarter of 2024, a 3.8% decline compared to Q2 ...

Referrals have long been known to be effective due to the trust customers place in recommendations from friends and family. However, our new research suggests that customer referrals are even more ...