Results 51 to 60 of about 1,576,936 (310)

Estimating Excreted Nutrients to Improve Nutrient Management for Grazing System Dairy Farms

Animals, 2023
Improving nutrient management in grazing system dairy farms requires determining nutrient flows through animals, the placement of cows within farms and potential for collection, and the re-use and loss of nutrients.
Sharon R. Aarons, Cameron J. P. Gourley, J. Mark Powell   +2 more
doaj   +1 more source

Nitrogen and sulphur management: challenges for organic sources in temperate agricultural systems [PDF]

, 2005
A current global trend towards intensification or specialization of agricultural enterprises has been accompanied by increasing public awareness of associated environmental consequences. Air and water pollution from losses of nutrients, such as nitrogen (
Aaes O, Arah JRM, Badaruddin M, Baggs EM, Banwart WL, Beard WE, Beck DP, Beckwith CP, Bergstrom L, Bergstrom LF, Bergstrom LF, Boller BC, Chambers BJ, Chao TT, Cowell LE, Curtin D, Eriksen J, Eriksen J, Eriksen J, Eriksen J, Freney JR, Giller KE, Granstedt A, Greaves J, Handayanto E, Harward ME, Hauck RD, Haynes RJ, Heger J, Hilhorst GJ, Huijsmans JFM, Huijsmans JFM, Janzen HH, Jarvis SC, Jenkinson DS, Jensen ES, Kemppainen E, Kirchmann H, Kirchmann H, Knights JS, Kumar K, Lloyd A, Lord EI, Lorenz F, Martinez J, Meisinger JJ, Menzi H, Metson AJ, Myers RJK, Myers RJK, National Research Council, Nygaard Serensen J, Pain BF, Papastylianou I, Papastylianou I, Parton WJ, Ruz-Jerez BE, Schuiling RD, Shepherd MA, Shepherd MA, Smith KA, Sommer SG, Steineck S, Stockdale EA, Tabatabai MA, Thomsen IK, Webster CP, Weier KL, Whitehead DC   +68 more
core   +1 more source

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Repeatability and validity of a food frequency questionnaire in free-living older people in relation to cognitive function [PDF]

, 2008
Objectives: To determine the repeatability and validity of a self-administered, 175-item food frequency questionnaire (FFQ) in free-living older people and to assess whether these are influenced by cognitive function.
Aucott, Lorna S, Craig, Leone CA, Jia, Xueli, McNeill, Geraldine, Milne, Anne C   +4 more
core  

Biogeochemical nutrient cycles and nutrient management strategies [PDF]

Hydrobiologia, 1999
Nutrient loading by riverine input into estuarine systems has increased by 6–50 times for the N load from pristine conditions to present, whereas a 18–180 times increase has been observed in the P load. Reductions in the ratio of N to P delivery has also occurred with time.
openaire   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Structural characteristics, antioxidant and immunological activities of polysaccharides from Ficus hirta Vahl based on different extraction methods

Industrial Crops and Products
Ficus hirta Vahl is a bioactive medicinal plant. However, the structural and functional differences of polysaccharides obtained through various extraction methods remain poorly understood, highlighting the need for further research to explore its ...
Ting Ju, Yishu Yin, Heqi Gao, Jiayu Wang, Guanjun Ye, Jiangfei Li, Yingchun Zhang, Fangjing Miao, Weihong Lu   +8 more
doaj   +1 more source

Nutrient Estimation from 24-Hour Food Recalls Using Machine Learning and Database Mapping: A Case Study with Lactose. [PDF]

, 2019
The Automated Self-Administered 24-Hour Dietary Assessment Tool (ASA24) is a free dietary recall system that outputs fewer nutrients than the Nutrition Data System for Research (NDSR).
Bouzid, Yasmine Y, Burnett, Dustin J, Chin, Elizabeth L, Kan, Annie, Lemay, Danielle G, Simmons, Gabriel, Tagkopoulos, Ilias   +6 more
core   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

p53 protein degradation redefines the initiation mechanisms and drives transitional mutations in colorectal cancer

Nature Communications
Incidence of colorectal cancer (CRC) is increasing likely due to different mechanisms driving initiation and progression. The initial model proposed by Fearon and Vogelstein posits it as a multi-hit neoplasia, originating from adenomatous-polyps induced ...
Irene Herranz-Montoya, Mariana Angulo-Aguado, Cristian Perna, Sladjana Zagorac, Luis García-Jimeno, Solip Park, Nabil Djouder   +6 more
doaj   +1 more source