Results 61 to 70 of about 121,629 (140)

Variation in measuring and ophthalmic factors correlating with central corneal thickness in the Northern Finland birth cohort eye study

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To assess the correlation between optical coherence tomography (OCT) and ultrasound pachymetry (USP) as methods for analysing central corneal thickness (CCT) and to evaluate ophthalmic factors affecting CCT. Methods The eyes of 3070 subjects of the Northern Finland Birth Cohort (NFBC) were examined at the age of 45–49 years.
Tuomas Qvist   +3 more
wiley   +1 more source

Discovery of Platinum in the Urals: V. Yu. Soimonov and N. A. Shlenev in Correspondence with N. R. Mamyshev, Manager of the Goroblagodatsky Plants

open access: yesIzvestia of the Ural federal university. Series 2. Humanities and Arts
Two hundred years ago, a platinum deposit was discovered in the Ural Mountains, in the Goroblagodatsky Mining and Industrial District. The events surrounding this geological discovery are recounted in this article based on the correspondence between N. R.
S. Golikova
semanticscholar   +1 more source

Talc‐Tempered Pottery From Bala Hissar, Kabul: An Analytical Study

open access: yesArchaeometry, EarlyView.
ABSTRACT Potsherds of cooking ware excavated at Bala Hissar archaeological site in Kabul were studied using X‐ray fluorescence (XRF), scanning electron microscope‐energy dispersive X‐ray spectrometry (SEM‐EDS), Raman spectroscopy, X‐ray powder diffraction (XRPD), thermogravimetric analysis (TGA) and optical microscopy.
Parviz Holakooei   +4 more
wiley   +1 more source

The frequency of inspections of economic facilities to reduce risks [PDF]

open access: yesE3S Web of Conferences
Changes in regulatory documents aimed at reducing the burden on employers often lead to quite unpredictable and harmful consequences. Experts note that one of the reasons for the occurrence of emergencies at economic facilities may be weak control ...
Melyakova O.A., Kuchumova G.V.
doaj   +1 more source

Assessment of the level of annual intake of tritium into the air from the surface of the lake Kyzyltash

open access: yesРадиационная гигиена, 2023
Сайт «Озёра России». URL: https://ozera.info/lakes/ about/gvr/list-lakes/kyzyl-tash (Дата обращения 25.03.2022 г.) Екидин А.А., Антонов П.Л., Жуковский М.В.
V. V. Vostrotin, A. Yu. Yanov
doaj   +1 more source

Palaeoglaciations in the Polar and Subpolar Ural Mountains

open access: yesBoreas, EarlyView.
The Ural Mountains form a major physiographic boundary between the East European Plain and West Siberia, both repeatedly glaciated during the Pleistocene by the Barents–Kara ice sheet. Although the present‐day topography reflects significant glacial modification, the extent, chronology and interaction of mountain glaciers with the Barents–Kara ice ...
Bartosz Kurjanski   +6 more
wiley   +1 more source

Reducing the replication time for structural estimations: A successful replication of “An Anatomy of International Trade” using GPU computing

open access: yesEconomic Inquiry, Volume 63, Issue 2, Page 424-440, April 2025.
Abstract Eaton, Kortum, and Kramarz (2011) (EKK) discovered empirical patterns from French manufacturing firms that a baseline firm heterogeneity model could not explain. The authors proposed and estimated a model that closely matches the patterns observed in French data.
Jiatong Zhong
wiley   +1 more source

Scaling relationships between Haversian canal‐to‐secondary osteon and midshaft femur cortical‐to‐total area in a human autopsy sample

open access: yesJournal of Anatomy, EarlyView.
We report that femoral cortical thickness was strongly and negatively associated with secondary osteon porosity in an Australian autopsy sample, indicating that thicker cortices contained less porous secondary osteons. This allometric relationship held for the whole sample, males and sedentary well‐nourished individuals, but not for females or other ...
Justyna J. Miszkiewicz   +3 more
wiley   +1 more source

Adjustment of CAD–CAM crowns with and without a 3D‐printed model: Comparative study of marginal fit

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated and compared the marginal fit of CAD–CAM zirconia crown copings with and without a 3D‐printed control model. Materials and Methods This prospective in vitro trial involved 30 zirconia crown copings made from the same STL file. These were divided into two groups.
Marwan Al Akkad   +6 more
wiley   +1 more source

Chimneys in Paleozoic massive sulfide mounds of the Urals VMS deposits: mineral and trace element comparison with modern black, grey, white and clear smokers

open access: yes, 2017
In the Urals, a wide range of well-preserved chimneys are found in VMS deposits, which are associated with ultramafic (Atlantic type: Dergamysh), mafic (Cyprus type: Buribay), bimodal mafic (Uralian type: Yubileynoye, Sultanovskoye, Yaman-Kasy ...
V. Maslennikov   +10 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy