Results 61 to 70 of about 4,044 (206)

Enhanced Moth Search Algorithm for the Set-Union Knapsack Problems

open access: yesIEEE Access, 2019
As an important and novel model with multitudinous practical applications, the set-union knapsack problem (SUKP) is a challenging issue in combinatorial optimization.
Yanhong Feng, Jiao-Hong Yi, Gai-Ge Wang
doaj   +1 more source

Subsurface Bacterioplankton Structure and Diversity in the Strongly-Stratified Water Columns within the Equatorial Eastern Indian Ocean

open access: yesMicroorganisms, 2023
The consequences of climate change may directly or indirectly impact the marine biosphere. Although ocean stratification has been recognized as one of the crucial consequences of ocean warming, its impacts on several critical aspects of marine microbes ...
Jiaqian Li   +6 more
doaj   +1 more source

Shallow Eastern Indian Ocean Thermocline Hinders ENSO Teleconnection to Southern Africa

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Rainfall peaks during austral summer in southern Africa, where most countries are vulnerable to hydroclimate extremes induced by El Niño‐Southern Oscillation (ENSO). Climate models have struggled to simulate the ENSO impact pattern, with excessive southwestward contraction of El Niño‐induced dry anomalies alongside wet anomalies extending too ...
Haodong Wang   +3 more
wiley   +1 more source

Empirical industrial organization economics to analyze developing country food value chains

open access: yes, 2022
Food value chains (FVCs) in developing countries are transforming rapidly, with some regions in the modern stage (led by supermarkets and large processors) and other regions in a transitional stage (led by midstream small and medium enterprises).
Macchiavello, Rocco   +2 more
core   +1 more source

Patient‐ and caregiver‐reported barriers to chemotherapy in nine sub‐Saharan African countries: A cross‐sectional survey among population‐based registries

open access: yesInternational Journal of Cancer, Volume 158, Issue 10, Page 2684-2696, 15 May 2026.
What's New? Increasing cancer incidence and mortality in low‐ and middle‐income countries has heightened concerns about limited resources and barriers to care. This challenge is particularly urgent in Sub‐Saharan Africa (SSA), where cancer rates are rising sharply. Here, data from population‐based cancer registries in nine SSA countries was assessed to
Tamara König   +19 more
wiley   +1 more source

EIO-hybridi-LCA-mallin soveltuvuus yhdyskuntarakenteen ilmastopäästöjen arviointiin sekä politiikan ohjauksen apuvälineeksi [PDF]

open access: yes, 2013
Ilmastonmuutosta pidetään nykyään yhtenä suurimmista ympäristöuhista. Yhdyskuntarakenteeseen liittyvät päästösektorit vastaavat jopa puolesta suomalaisten kasvihuonekaasupäästöistä.
Mastomäki, Ville-Veikko
core  

Unravelling Taxonomic Complexity in Elusive Cetaceans: Mitogenome Insights into Evolutionary History and Cryptic Diversity of Bryde's Whales

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
The Bryde's whale is one of the least understood baleen whale species globally, limiting accuracy of regional and global conservation assessment. This study shows the occurrence of unique genetic lineages and evolutionary histories among Bryde's whale populations.
Dominique Paynee   +7 more
wiley   +1 more source

THz radiation from a high-order mode sheet beam extended interaction oscillator with staggered grating

open access: yesAIP Advances, 2019
A circuit design of sheet-beam extended interaction oscillator (SB-EIO) with an overmoded staggered grating array is embodied in theoretical analyses which combined with particle-in-cell (PIC) simulation. Mode and dispersion analyses on the design of the
Che Xu   +9 more
doaj   +1 more source

Autonomous Float Data Reveal Decoupled Trends in Chlorophyll and Stratification in the Indian Ocean

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract Recent studies have shown that the Indian Ocean is warming significantly, but how this warming impacts primary production is largely unresolved due to a relative lack of depth‐resolved biological observations. In this study, we have used Biogeochemical‐Argo data from 2013 to 2022, comprising over 9,000 individual profiles, to examine regional ...
Marufa Ishaque   +2 more
wiley   +1 more source

Preliminary design and optimization of a G-band extended interaction oscillator based on a pseudospark-sourced electron beam [PDF]

open access: yes, 2015
The design and simulation of a G-band extended interaction oscillator (EIO) driven by a pseudospark-sourced electron beam is presented. The characteristic of the EIO and the pseudospark-based electron beam were studied to enhance the performance of the ...
H. Yin   +9 more
core   +1 more source

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