As leis da hereditariedade foram formuladas no século 19, pelo monge austríaco Gregor Mendel (1822-1884). Ao fazer cruzamentos entre as ervilhas de jardim, ele descobriu que todas as características ...
The Conference Board Leading Economic Index ® (LEI) for China decreased by 0.2% in February 2026 to 145.1 (2016=100), after increasing by 0.1% in January. As a result, the LEI contracted by 1.3% over the six-month period from August 2025 to February 2026, after a 1.9% decline over the previous six-month period between February and August 2025. The Conference Board Coincident Economic Index ...
The Conference Board Leading Economic Index® (LEI) for the US inched down by 0.1% in January 2026 to 97.5 (2016=100), following a 0.2% decline in December. Overall, the LEI fell by 1.3% over the six-month period from July 2025 to January 2026, half the rate of decline compared to its –2.6% contraction over the previous six months (January to July 2025). “The U.S. LEI fell further in ...
The Conference Board LEI for the US decreased for the fifth consecutive month in April. Large negative contributions from average consumer expectations for business conditions and the S&P 500® Stock Index fueled the most recent decline. In the six-month period ending April 2025, the leading economic index decreased by 2.0% (about a –3.9% annual rate), the same rate of contraction as over ...
The Conference Board Leading Economic Index ® (LEI) for Japan rose by 0.7% in February 2026 to 89.6 (2016=100), continuing the upward trend following a 0.9% increase in January. Over the 6-month period from August 2025 to February 2026, the LEI for Japan increased by 2.5%, a significant improvement compared to 0.2% growth recorded between February and August 2025. The Conference Board ...