Results 61 to 70 of about 175,031 (216)

Tropical Tree Branch-Leaf Nutrient Scaling Relationships Vary With Sampling Location

Frontiers in Plant Science, 2019
Bivariate relationships between plant tissue nutrient concentration have largely been studied across broad environmental scales regardless of their covariation with soil and climate.
Demetrius Lira-Martins, Emma Humphreys-Williams, Stanislav Strekopytov, Francoise Yoko Ishida, Carlos Alberto Quesada, Jon Lloyd, Jon Lloyd, Jon Lloyd   +7 more
doaj   +1 more source

Mimicking Block Copolymer Self‐Assembly with One‐Pot Synthesized Polyphosphoester Gradient Copolymers

Advanced Functional Materials, EarlyView.
Degradable Polyphosphoester (PPE) gradient copolymers (GCPs) are synthesized via one‐pot copolymerization. We show that GCPs self‐assemble into nanostructures like polymersomes, effectively mimicking the behavior of traditional BCPs. The gradient strength is key, with softer gradients favoring micelles.
Suna Azhdari, Timo Rheinberger, Ulrich Mansfeld, Yorick Post, Jürgen Linders, Olga Koshkina, André H. Gröschel, Frederik R. Wurm   +7 more
wiley   +1 more source

Potential of NIRS for determining multiple cannabinoid concentrations in Cannabis sativa L.

Agrosystems, Geosciences & Environment
Following the 2018 Farm Bill, many US states allowed for hundreds of industrial hemp licenses, and the resulting production flooded markets. Floral industrial hemp (Cannabis sativa L.) offered prospects in essential oils for medicinal, flavoring, and ...
Tina Sullivan, Matt Yost, Earl Creech, Bruce Bugbee   +3 more
doaj   +1 more source

IMPROVEMENT OF SHEAR STRENGTH DESIGN OF A ROAD STRUCTURE. PART 2. MODIFIED MODEL TO CALCULATE THE PRINCIPAL AND SHEAR STRESSES

Инженерно-строительный журнал, 2016
Grounds for road pavements of granular materials are widely used in the practice of construction of roads in the world. Experimental studies of different loads, have shown that an adequate stress calculations using the formulas of continuum mechanics is ...
A.S. Aleksandrov, G.V. Dolgikh, A.L. Kalinin   +2 more
doaj   +1 more source

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source

Soil characteristics and allometric models for biometric characteristics and nutrient amounts for high yielding “Bolaina” (Guazuma crinita) trees

Scientific Reports
The Peruvian amazon is very diverse in native forestry species, the Guazuma crinita “Bolaina” being one of the most planted species in the country; however, little or no information about soil requirements and nutrient demands is known.
C. O. Arévalo-Hernández, E. Arévalo-Gardini, J. A. Correa V., J. O. Souza Júnior, J. C. L. Neves   +4 more
doaj   +1 more source

The vegetation of the northeastern Orange Free State, South Africa: physical environment and plant communities of the Ea land type

Bothalia: African Biodiversity & Conservation, 1993
The research was carried out in the Ea land type of the northeastern Orange Free State, with the objective of reclassifying and refining Acocks’s veld types. TWINSPAN classification results were further refined by Braun-Blanquet procedures. The 100 relev^
H. C. Eckhart, N. van Rooyen, G. J. Bredenkamp   +2 more
doaj   +1 more source

Metal–Organic Frameworks for Gaseous Pollutant Management: From Capture to Neutralization and Reutilization

Advanced Functional Materials, EarlyView.
This review maps how MOFs can manage hazardous gases by combining adsorption, neutralization, and reutilization, enabling sustainable air‐pollution control. Covering chemical warfare agent simulants, SO2, NOx, NH3, H2S, and volatile organic compounds, it highlights structure‐guided strategies that boost selectivity, water tolerance, and cycling ...
Yuanmeng Tian, Zeyu Tao, Kaikai Ma, Xiaoliang Wang, Bo Yu, Yiu Wan Yip, Zhijie Chen, Jin Shang, Bin Fei   +8 more
wiley   +1 more source

Soil Contamination at the Historical Zn-Pb Ore Mining Sites (Southern Poland)

E3S Web of Conferences, 2013
Results of metals analyses in soil profiles sampled at two 18/19th century mine shafts of the Trzebinia lead-zinc ore mining region in southern Poland are presented.
Aleksander-Kwaterczak U., Ciszewski D.
doaj   +1 more source

Highly Sensitive Oxidation‐Resistant Degradable Janus Piezoresistive Electronic Skin for Sustainable Wearable Electronics

Advanced Healthcare Materials, EarlyView.
This study presents a highly sensitive, oxidation‐resistant, biocompatible, and degradable Janus piezoresistive electronic skin for sustainable wearable electronics. The electronic skin exhibits sensitive and stable response across a broad pressure range, exceptional oxidation resistance, and Janus wettability.
Joon Kim, Mohammad Zarei, Deristisya Zahra, Yuhan Lee, Daegun Kim, Seung Goo Lee   +5 more
wiley   +1 more source