Results 111 to 120 of about 3,945,479 (302)

Sources of nitrogen for winter wheat in organic cropping systems [PDF]

, 2013
In organic cropping systems, legumes, cover crops, residue incorporation, and manure application are used to maintain soil fertility, but the contributions of these management practices to soil nitrogen (N) supply remain obscure.
Christensen, B.T., Søren O. Petersen, Olesen, Jørgen E., Per Schjønning, Jørgen E. Olesen, Petersen, Søren O., Schjønning, P., Christensen, S., Søren Christensen, Bent T. Christensen   +9 more
core   +1 more source

Quantitative analysis of variation of organic carbon mass and content in source rock during evolution process

Petroleum Exploration and Development, 2009
According to the mass conservation principle of organic carbon, a mathematical model of organic carbon mass compensation coefficient is established to indicate the variation of organic carbon mass.
Zhou Zongying
doaj   +1 more source

Determinants of Body Mass Index in Early Systemic Sclerosis: Implications for Nutritional Risk Stratification

Arthritis Care &Research, EarlyView.
Objective Gastrointestinal (GI) involvement can lead to malnutrition in patients with systemic sclerosis (SSc). Body mass index (BMI) remains the most widely used marker to screen nutritional status. We aimed to identify predictors of lower BMI in patients with SSc. Methods Patients with SSc from a prospective US cohort meeting 2013 American College of
Ali Y. Ayla, Meng Zhang, Bingrui Chen, Claudia Pedroza, Brian Skaug, Maureen Mayes, Michael Hughes, Shervin Assassi, Zsuzsanna H. McMahan   +8 more
wiley   +1 more source

Maintaining ecological soil functions - techniques in organic farming systems [PDF]

, 2000
The ecological soil functions (e.g. habitat and living space, production and utilization, ecological regulation) have to be taken into account and maintained by farming systems.
Beste, Andrea
core   +1 more source

Effect of Ecological Construction on Soil Organic Carbon Distribution on Slope Lan

Shuitu baochi yanjiu, 2020
Ecological construction project is an important measure to prevent soil erosion and restore soil fertility. The study on the influence of ecological construction project on soil organic carbon and its components aims to reveal the distribution rule of ...
WANG Wei, LI Zhanbin, LI Peng, WANG Feichao, ZHANG Yi   +4 more
doaj  

Facial Cosmetic Therapy Use Among Patients With Systemic Sclerosis: An Australian Cohort Study

Arthritis Care &Research, EarlyView.
Objective Systemic sclerosis (SSc) is associated with numerous facial manifestations for which patients may engage in cosmetic therapies. It is unclear how patients with SSc use these therapies. This study sought to characterize patient engagement and experiences with cosmetic therapies for SSc‐related and non‐SSc–related facial changes.
Zachary Warren, Diane Apostolopoulos, Gene‐Siew Ngian, Amanda M. Saracino, Laura Ross, Nava Ferdowsi, Jennifer Walker, Cindy Hall, Kim Griggs, Susanna Proudman, Wendy Stevens, Joanne Sahhar   +11 more
wiley   +1 more source

Application and research progress of nucleating agents in degradable materials

e-Polymers
Biodegradable materials have garnered significant attention due to their environmental friendliness and renewability. However, inadequate crystallization properties may occur during the molding process, affecting product appearance, mechanical properties,
Li Xin, Dong Yang, Sun Xiaojie, Wang Rong, Chen Lanlan, Yuan Shuai, Wang Yong, Wu Xiaotong, Ma Hongyang, Zhang Minghui   +9 more
doaj   +1 more source

On-surface synthesis of nonbenzenoid nanographenes through skeletal rearrangement reactions on Au(111)

Science and Technology of Advanced Materials
Skeletal rearrangement reaction is a class of important chemical reactions to synthesize various constitutional isomers from a given precursor molecule.
Kewei Sun, Xiushang Xu, Atsushi Ishikawa, Akimitsu Narita, Shigeki Kawai   +4 more
doaj   +1 more source

Ullmann Reactions of Carbon Nanotubes—Advantageous and Unexplored Functionalization toward Tunable Surface Chemistry

Nanomaterials, 2019
We demonstrate Ullmann-type reactions as novel and advantageous functionalization of carbon nanotubes (CNTs) toward tunable surface chemistry. The functionalization routes comprise O-, N-, and C-arylation of chlorinated CNTs.
Anna Kolanowska, Anna Wioleta Kuziel, Rafał Grzegorz Jędrysiak, Maciej Krzywiecki, Emil Korczeniewski, Marek Wiśniewski, Artur Piotr Terzyk, Sławomir Boncel   +7 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source