The optimum nitrogen fertilizer rate for maize in the US Midwest is increasing.

Fertilizing maize at an optimum nitrogen rate is imperative to maximize productivity and sustainability. Using a combination of long-term (n = 379) and short-term (n = 176) experiments, we show that the economic optimum nitrogen rate for US maize production has increased by 2.7 kg N ha yr from 1991 to 2021 (1.

Recommendations for the diagnosis and treatment of alpha-1 antitrypsin deficiency.

Alpha-1 antitrypsin deficiency (AATD) is a relatively rare genetic disorder, inherited in an autosomal codominant manner, that results in reduced serum AAT concentrations, with a consequent reduction in antielastase activity in the lungs, as well as an increased risk of diseases such as pulmonary emphysema, liver cirrhosis, and necrotizing panniculitis. It results from different mutations in the SERPINA1 gene, leading to changes in the AAT glycoprotein, which can alter its concentration, conformation, and function. Unfortunately, underdiagnosis is quite common; it is possible that only 10% of cases are diagnosed.

How Distressed Are Adolescent Students? A Mix-Method Study on High School Students in Northern Italy, Two Years after the Beginning of the COVID-19 Pandemic.

Adolescence is a central phase for the development of a person's identity, involving complex multidimensional changes and increasing vulnerability to distress. This study aimed to investigate the psychological well-being of adolescent students in Brescia (Northern Italy), two years after the beginning of the COVID-19 pandemic. An online survey investigated the extent and the reasons reported by high school students (13-21 years) for their emotional distress (ED), also considering other factors such as physical activity, nutrition, sleep and smartphone overuse.

Stretchable Distributed Bragg Reflectors as Strain-Responsive Mechanochromic Sensors.

Mechanochromic materials exhibit color changes upon external mechanical stimuli, finding wide-ranging applications in colorimetric sensing, display technology, and anticounterfeiting measures. Many of these materials rely on fluorescence properties and therefore necessitate external optical or electrical excitation. However, for broader applicability, the detection of color changes by the naked eye only or without complicated detection instrumentation is highly desirable.