Results 71 to 80 of about 1,115,302 (317)

Determination of Total Nitrogen in Fertilizers

Journal of AOAC INTERNATIONAL, 1965
Abstract Five methods, AOAC 2.037, 2.039, modified reduced iron, chromium powder, and Raney nickel catalyst powder for the determination of total nitrogen in fertilizers, were submitted to collaborators for study. Twelve laboratories participated and completed the work. No one method was “best.” The modified reduced iron, chromium powder,
W E Urban, H A Davis
openaire   +1 more source

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source

Impactul diferitor sisteme de fertilizare asupra conţinutului azotului total, proteic şi neproteic al plantelor cultivate în asolament pe cernoziom tipic

Agricultural Science, 2013
The aim of our researches was to compare the impact of two fertilization systems on the concentration of total, protein and nonprotein nitrogen in plants.
BÎZGAN Iana
doaj  

Bottom Sediment Characteristics of a Tropical Lake: Lake Tana, Ethiopia

Hydrology, 2020
Sediment concentration of rivers in developing countries has been increasing greatly over the last 50 years due to the conversion of forest to continuously cultivated land with the increasing population.
Mebrahtom G. Kebedew, Seifu A. Tilahun, Fasikaw A. Zimale, Tammo S. Steenhuis   +3 more
doaj   +1 more source

Total Nitrogen

The following information provides general guidelines for the analysis of Kjeldahl nitrogen according to the direct distillation method. The procedure described is applicable to all sample types. When a solid sample in an alkaline solution is steam distilled, some of the nitrogen in the proteins will be converted to ammonia.
Karavidas, I., Ntanasi, T., Ntatsi, G.
openaire   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Alley Cropping Can Potentially Alter the Nitrogen and Carbon Soil Cycles and Increase the Abundance of Beneficial Bacteria in a Mediterranean Citrus Orchard

Journal of Sustainable Agriculture and Environment
Monocrop of mandarin leading to reduced soil biodiversity and functionality that must be changed to a sustainable agriculture practice such as alley cropping.
Margarita Ros, Jessica Cuartero, Onurcan Özbolat, Virginia Sánchez‐Navarro, Marcos Egea‐Cortines, Maria Almagro, María Hurtado‐Navarro, Maria Martinez‐Mena, Jose Antonio Pascual, Raúl Zornoza   +9 more
doaj   +1 more source

Effects of Long-Term Winter Planted Green Manure on Distribution and Storage of Organic Carbon and Nitrogen in Water-Stable Aggregates of Reddish Paddy Soil Under a Double-Rice Cropping System

Journal of Integrative Agriculture, 2014
In agricultural systems, maintenance of soil organic matter has long been recognized as a strategy to reduce soil degradation. Manure amendments and green manures are management practices that can increase some nutrient contents and improve soil ...
Zeng-ping YANG, Sheng-xian ZHENG, Jun NIE, Yu-lin LIAO, Jian XIE   +4 more
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Benthic fluxes of dissolved organic nitrogen in the Lower St. Lawrence Estuary and implications for selective organic matter degradation [PDF]

, 2013
The distribution of dissolved organic nitrogen (DON) and carbon (DOC) in sediment porewaters was determined at nine locations along the St. Lawrence estuary and in the gulf of St. Lawrence. In a previous manuscript (Alkhatib et al., 2012a), we have shown
Gelinas, Y., Lehmann, M. F., M. Alkhatib, P. A. del Giorgio, Alkhatib, M., del Giorgio, P. A., Y. Gelinas, M. F. Lehmann   +7 more
core   +1 more source