Results 111 to 120 of about 320,187 (264)

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

open access: yesGeological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai   +5 more
wiley   +1 more source

Inventario de la flora vascular de Jalisco, México

open access: yesBotan‪ical Sciences
Background: Floristic inventories record the species observed in a particular region and serve as fundamental contributions to understanding biotic resources. Jalisco stands out as one of the Mexican states with significant floristic diversity. However,
Ana Karem Gudiño-Cano   +7 more
doaj   +1 more source

Infection mechanisms of Rhizoctonia cerealis in wheat

open access: yesiMeta, EarlyView.
We discover that R. cerealis (Rc) is a primary pathogen causing sharp eyespot of wheat after 335 distinct isolates were isolated from 1683 SE‐diseased wheat plants across China over 7 years using a single hyphal tip isolation method. We then generated high‐quality reference genomes via de novo sequencing of five representative Rc isolates and ...
Yan Ren   +13 more
wiley   +1 more source

Price Indexes for Medical Care Goods and Services: An Overview of Measurement Issues [PDF]

open access: yes
We review in considerable detail the conceptual and measurement issues that underlie construction of medical care price indexes in the U.S., particularly the medical care consumer price indexes (MCPIs) and medical-related producer price indexes (MPPIs ...
Zvi Griliches   +4 more
core  

Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT This invited paper gives an overview of the challenges the world is facing and offers a possible solution for water and food security within the holistic integrated concept of the water–energy–food (WEF) nexus. The paper summarizes the experience the author gained through working on various research projects at national and international ...
Ragab Ragab
wiley   +1 more source

Using state indexes to define economic regions in the U.S. [PDF]

open access: yes
When regional economists study the interaction of multi-state regions in the U.S., they typically use the regional divisions developed by the U.S. Bureau of the Census or the Bureau of Economic Analysis (BEA). The current census divisions were adopted in
Theodore M. Crone
core  

Ecological Status of Algeciras Bay, in a Highly Anthropised Area in South-West Europe, through Metal Assessment—Part I: Abiotic Samples

open access: yesToxics
The ecological status of Algeciras Bay (South-west Europe), highly influenced by anthropogenic activities, was assessed by monitoring Zn, Cd, Pb, and Cu in water and sediment samples.
María José Casanueva-Marenco   +3 more
doaj   +1 more source

Drought Risk in Mango and Avocado Orchards: Insights Into Plant Water Relations and Irrigation‐Related Agronomic Solutions

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Climate change is making water availability more uncertain, with growing consequences for the productivity and long‐term sustainability of tropical and subtropical fruit orchards. Mangifera indica L. and Persea americana Mill. both require large amounts of water to sustain growth and productivity.
Eleonora Cataldo
wiley   +1 more source

Looking at Soil as It Is: Evolution of Microscopic Soil Characterization From Kubiëna to Artificial Intelligence

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
We provide a historic overview of microscopic soil structure characterization from its founding father, Walter Kubiëna, to several technical revolutions like automation, digitalization, and artificial intelligence. In addition to technical advancements, we explore how concepts and research questions have evolved in time.
Steffen Schlüter   +3 more
wiley   +1 more source

Diversity of the ichthyofauna in the Serra do Mar State Park- Núcleo Santa Virgínia, São Paulo State, Brazil = Diversidade da ictiofauna no Parque Estadual da Serra do Mar-Núcleo Santa Virgínia, Estado de São Paulo, Brasil

open access: yesActa Scientiarum: Biological Sciences, 2006
The aim of this work was to assess and compare the diversity of theichthyofauna in three headwater rivers of Paraíba-do-Sul basin in the Serra do Mar State Park, Núcleo Santa Virgínia.
Leandro Muller Gomiero   +1 more
doaj  

Home - About - Disclaimer - Privacy