Results 41 to 50 of about 1,919,199 (295)

Periodic minimal surfaces of cubic symmetry [PDF]

open access: yes, 2003
A survey of cubic minimal surfaces is presented, based on the concept of fundamental surface patches and their relation to the asymmetric units of the space groups.
Lord, Eric A., Mackay, Alan L.
core  

The Survey for Ionization in Neutral Gas Galaxies: I. Description and Initial Results [PDF]

open access: yes, 2006
We introduce the Survey for Ionization in Neutral Gas Galaxies (SINGG), a census of star formation in HI-selected galaxies. The survey consists of H-alpha and R-band imaging of a sample of 468 galaxies selected from the HI Parkes All Sky Survey (HIPASS).
B. Koribalski   +30 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Non-invasive investigation of Roman Period rural settlements along the Middle course of the Tundzha river, Yambol district, Bulgaria

open access: yesБългарско е-Списание за Археология
Several Roman period surface scatters and a settlement located in the Yambol District, along the Tundzha River, have been investigated within the last few years.
Petra Tušlová   +6 more
doaj   +1 more source

The Impact of Sediment Supply on the Initiation and Magnitude of Runoff‐Generated Debris Flows

open access: yesGeophysical Research Letters, 2020
Rainfall intensity‐duration (ID) thresholds are commonly used to assess the potential for runoff‐generated debris flows, but the sensitivity of these thresholds to sediment supply, which can change rapidly with time, is relatively unexplored. Furthermore,
Hui Tang   +3 more
doaj   +1 more source

Hydraulic head change predictions in groundwater models using a probabilistic neural network

open access: yesFrontiers in Water, 2023
Groundwater resource management is an increasingly complicated task that is expected to only get harder and more important with future climate change and increasing water demands resulting in an increasing need for fast and accurate decision support ...
Mathias Busk Dahl   +4 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Steel Surface Defect Recognition: A Survey

open access: yesCoatings, 2022
Steel surface defect recognition is an important part of industrial product surface defect detection, which has attracted more and more attention in recent years. In the development of steel surface defect recognition technology, there has been a development process from manual detection to automatic detection based on the traditional machine learning ...
Xin Wen, Jvran Shan, Yu He, Kechen Song
openaire   +1 more source

Probing the IGM-galaxy connection at z<0.5 II. New insights into the galaxy environments of OVI absorbers in PKS 0405-123

open access: yes, 2013
We present new absorption-line analysis and new galaxy survey data obtained for the field around PKS0405-123 at z=0.57. Combining previously known OVI absorbers with new identifications in the higher S/N UV spectra obtained with COS, we have established ...
Chen, Hsiao-Wen   +2 more
core   +1 more source

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