Results 21 to 30 of about 77,848 (283)

Study on Guarantee System of Engineering Survey in Far and Deep sea

open access: yesHaiyang Kaifa yu guanli, 2022
Ocean engineering activities need to be carried out under the conditions of complete procedures and legal approval documents. However, because of the more complex environment and challenges, it is necessary to establish and improve the investigation and ...
Haodong CHEN   +4 more
doaj  

The large-scale disk fraction of brown dwarfs in the Taurus cloud as measured with Spitzer [PDF]

open access: yes, 2010
Aims. The brown dwarf (BD) formation process has not yet been completely understood. To shed more light on the differences and similarities between star and BD formation processes, we study and compare the disk fraction among both kinds of objects over a
A. Noriega-Crespo   +51 more
core   +4 more sources

The Role of Vitamin A, Vitamin C and Vitamin E for Chemoprevention of Oral Leukoplakia

open access: yesUpdate Dental College Journal, 2023
Introduction: Oral leukoplakia is a prevalent oral mucosal lesion known to undergo malignant transformation, posing a significant public health concern worldwide, primarily attributable to tobacco use.
Mohidul Islam   +6 more
doaj   +3 more sources

BDS Satellite-Based Augmentation Service Correction Parameters and Performance Assessment

open access: yesRemote Sensing, 2020
BDS (Beidou Navigation Satellite System) integrates the legacy PNT (Positioning, Navigation, Timing) service and the authorized SBAS (Satellite-Based Augmentation Services) service. To support the requirement of decimeter-level positioning, four types of
Junping Chen   +4 more
doaj   +1 more source

Approaching zero : temporal effects of a restrictive antibiotic policy on hospital-acquired Clostridium difficile, extended-spectrum β-lactamase-producing coliforms and meticillin-resistant Staphylococcus aureus [PDF]

open access: yes, 2013
A restrictive antibiotic policy banning routine use of ceftriaxone and ciprofloxacin was implemented in a 450-bed district general hospital following an educational campaign.
Christison, F.   +5 more
core   +3 more sources

Childhood Bezoars: A Case Series [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2018
Bezoars are the rarest causes of upper abdominal masses and upper gastric outlet obstruction in children and are most commonly seen in females of adolescent age.
Kamal Nain Rattan   +4 more
doaj   +1 more source

Management of an upper central incisor having periapical pathology with unusual presentation

open access: yesUpdate Dental College Journal, 2014
The aim of this report is to discuss a case about a traumatized upper left central incisor presented with chronic periapical pathology with unusual presentation.
Mohammad Aminul Islam   +3 more
doaj   +1 more source

The Effect of Cigarette Smoking on Solubility and Disintegration of Resin Modified Glass Ionomer Cement – An In Vitro Study [PDF]

open access: yesJournal of Dental Materials and Techniques, 2020
Introduction: Glass ionomer cement (GIC) is a dental restorative material that is prone to solubility and degradation. GIC could degrade in presence of water and desiccation due to environmental factors during setting process and eventually might lead to
merin mathew   +2 more
doaj   +1 more source

Chemical tracers in proto-brown dwarfs: CO, ortho-H$_{2}$CO, para-H$_{2}$CO, HCO$^{+}$, CS observations

open access: yes, 2018
We present a study of the CO isotopologues and the high-density tracers H$_{2}$CO, HCO$^{+}$, and CS in Class 0/I proto-brown dwarfs (proto-BDs). We have used the IRAM 30m telescope to observe the $^{12}$CO (2-1), $^{13}$CO (2-1), C$^{18}$O (2-1), C$^{17}
Caselli, P., Riaz, B., Thi, W. F.
core   +1 more source

Rotation and variability of very low mass stars and brown dwarfs near Epsilon Ori

open access: yes, 2004
We explore the rotation and activity of very low mass (VLM) objects by means of a photometric variability study. Our targets in the vicinity of Epsilon Ori belong to the OriOB1b population in the Orion star-forming complex. In this region we selected 143
A. Scholz   +73 more
core   +1 more source

Home - About - Disclaimer - Privacy