Results 111 to 120 of about 2,264,107 (292)

Remember the Drive Home? An Assessment of Emergency Providers’ Sleep Deficit

open access: yesEmergency Medicine International, 2018
Objective. Sleep deprivation decreases work performance and predisposes workers to deleterious health outcomes. We sought to evaluate sleep hygiene and fatigue among emergency physicians. Methods.
Brian A. Ferguson   +3 more
doaj   +1 more source

Preparation of pure boehmite, alpha-Al2O3 and their mixtures by hydrothermal oxidation of aluminium metal [PDF]

open access: yes, 1997
A hydrothermal oxidation process for preparing pure boehmite, alpha-Al2O3, and their mixtures by oxidation of pure aluminum metal is described, and the reaction mechanisms involved are identified. SEM images are presented which show distinct morphologies
Jaleel, VA, Kannan, TS, Panda, PK
core  

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Unilateral vulvar hematoma after laparoscopic detorsion of the ipsilateral ovary following oocyte retrieval for IVF: A case report and review of anatomy and surgical planning

open access: yesCase Reports in Women's Health
A case is reported of delayed ovarian torsion following controlled ovarian hyperstimulation and uncomplicated oocyte retrieval, further complicated by post-laparoscopic ipsilateral vulvar hematoma.A 37-year-old nulliparous woman with a history of ...
Rachel Linfield   +4 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Changes on microbial C and enzyme activities in soil with amendment of composted tannery sludge after 9 years

open access: yesInternational Journal of Recycling of Organic Waste in Agriculture
Purpose The consecutive amendment of composted tannery sludge (CTS) could promote changes in the status of soil microorganisms. Thus, this study evaluated the changes on microbial C and enzyme activities in soil after 9 years of CTS amendment.
Antonio Victor Cavalcante Rocha Silva   +6 more
doaj   +1 more source

Lower-curing-temperature PMR polyimides [PDF]

open access: yes
Partial substitution of a p-aminostyrene end-cap for the monomethyl ester of 5-norbornene-2, 3-dicarboxylic acid lowered the final cure temperature of typical PMR resins from 600 F to 500 F.
Delvigs, P.
core   +1 more source

Landau damping of partially incoherent Langmuir waves

open access: yes, 2002
It is shown that partial incoherence, in the form of stochastic phase noise, of a Langmuir wave in an unmagnetized plasma gives rise to a Landau-type damping. Starting from the Zakharov equations, which describe the nonlinear interaction between Langmuir
Alber   +29 more
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

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