Results 231 to 240 of about 327,817 (261)

Depositional and Hydrological Relationships Between Buried Dead Ice and the Active Layer in the McMurdo Dry Valleys, Antarctica: A Study of Sediment Geochemistry and Cation Concentrations

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The McMurdo Dry Valleys, the largest ice‐free region in Antarctica, are home to a cold‐desert hydrologic system of glaciers, snowbanks, streams, and lakes. Freshwater is also stored as dead glacial ice, which is poorly constrained in terms of ion concentrations and interactions with both in situ and overlying sediments.
Matthew C. Witscheber, Kate M. Swanger
wiley   +1 more source

Toward diagnostically relevant isotope-ratio biomarkers: what does MC-ICP-MS still need for standardized measurements? [PDF]

Anal Bioanal Chem
Ramirez DA, Meermann B.
europepmc   +1 more source

Use of 15N isotopic dilution to separate the processes of mineralisation and immobilisation

, 1998
Goulding, K. W. T., Gaunt, J. L., Murphy, D. V.   +2 more
core  

Plant species are more important to bacterial community composition than seeding ratio in a pea‐canola intercropping system

PLANTS, PEOPLE, PLANET, EarlyView.
Demand for agricultural land has increased due to rising demand for food, potentially leading to expansion into previously untouched habitats, which threatens refugia of native plants. We aimed to provide insight into how variation in seeding ratio may impact soil bacterial communities in a pea‐canola intercropping system, potentially altering crop ...
Janice M. Parks, Braeden J. Stiffler, Maren L. Friesen   +2 more
wiley   +1 more source

Stardust as nucleation seeds for the earliest solids in the Solar System. [PDF]

Sci Adv
Marquez RTC, Charlier BLA, Tissot FLH.
europepmc   +1 more source

Introgressed Brassica napus × Sinapis alba enhance resistance to the crucifer flea beetle (Phyllotreta cruciferae)

Pest Management Science, EarlyView.
This study demonstrates that Brassica napus lines with Sinapis alba introgressions enhanced resistance against Phyllotreta cruciferae, resulting in reduced feeding damage and improved seedling physiological performance. The introgressed lines showed strong potential as genetic resources for developing more resilient and sustainable canola varieties ...
Aziz Ullah, Altaf Hussain, Vicky Roslinsky, Sally L. Vail, Boyd A. Mori   +4 more
wiley   +1 more source

Diffusion-Controlled Solute and Isotope Transport in the Milk River Aquifer System, Alberta, Canada: Implications for Dating Old Groundwater. [PDF]

ACS Earth Space Chem
Musy SL, Purtschert R, Sturchio NC, Heraty LJ, Mueller P, Lantis J, Bishof MN, Vockenhuber C, Date A, Mayer B, Yokochi R.   +10 more
europepmc   +1 more source

Inhomogeneity and Vibrational Coupling of Free OH Stretch at the Air/Water Interface. [PDF]

J Am Chem Soc
Sung W, Nihonyanagi S, Tahara T.
europepmc   +1 more source

Assessing calibration methods for fenuron determination in carrot juice via GC-MS with salt-assisted switchable solvent microextraction. [PDF]

Sci Rep
Bodur S, Bodur SE, Oflu S, Günkara ÖT, Bakırdere S.   +4 more
europepmc   +1 more source

Cracking the EI Code: Fragmentation Patterns for Structural Elucidation of Neonicotinoid Insecticides by GC-MS. [PDF]

Molecules
Sun Q, Chen J, Yu P, Ye J, Chen Q, Han Y, Li X, Ma W.   +7 more
europepmc   +1 more source