نتایج جستجو برای: postdate

تعداد نتایج: 136  

Journal: :Minerals 2023

The Lower Cretaceous reservoir core samples from the upper part of Qamchuqa Formation, Baba Dome, Kirkuk Oil Company, show evidence for multistage episodes dolomitization and a complex diagenetic history. Optical microscope reveals muti-phase diagenesis: an early stage diagenesis its alteration, later, by evaporated seawater under near-surface setting conditions, followed different event dolomi...

Journal: :Earth-Science Reviews 2022

The internal zones of the Western Alps arc are derived from an oceanic and continental subduction wedge developed beneath Adria plate during its paleogene northward drift. Exhumation proceded early Oligocene onwards due to westward extrusion plate. prominent fold-and-thrust structures which follow shape, either forward or backward verging, postdate initial nappe stacking overprint differently o...

1994
David Auckly LORENZO SADUN

After reviewing energy functionals for 1-dimensional knots and links, we deene a family of MM obius invariant energy functionals E s for surfaces embedded in R n. These functionals are all nite for smoothly embedded compact surfaces and innnite for self-intersecting immersed surfaces. They treat disconnected surfaces and connected sums of surfaces correctly. For suuciently negative s, E s is no...

2015
Mikhail A. Kreslavsky Mikhail A. Ivanov James W. Head

Because of atmospheric shielding and endogenic resurfacing, the population of impact craters on Venus is small (about a thousand) and consists of large craters. This population has been used in numerous studies with the goal of deciphering the geologic and geodynamic history of Venus, but the nearly spatially random nature of the crater population has complicated efforts to understand this hist...

Journal: :British medical journal 1975
B W Hancock A Naysmith

Neurological adverse effects are known to complicate vincristine treatment. In occasional reports of bowel and bladder disturbance it has not been possible to incriminate autonomic neuropathy. We report here three patients with symptoms and signs which could be ascribed to vincristine-induced autonomic neuropathy. Case Reports Case 1.-A 75-year-old man presented with recurrent Hodgkin's disease...

Journal: :Molecular biology and evolution 1983
J C Avise J F Shapira S W Daniel C F Aquadro R A Lansman

We address the problem of the possible significance of biological speciation to the magnitude and pattern of divergence of asexually transmitted characters in bisexual species. The empirical data for this report consist of restriction endonuclease site variability in maternally transmitted mitochondrial DNA (mtDNA) isolated from 82 samples of Peromyscus polionotus and P. leucopus collected from...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Michael R Rampino

E xtinctions have played an important role in the history of life by clearing out niches and fostering adaptive radiations. Major mass extinctions involving 70% to more than 90% of extant species occurred at least five times during the last 540 million years. The discovery by Alvarez et al. (1) that the end-Cretaceous (65 Mya) mass extinction coincided with evidence for the impact of an asteroi...

Journal: :Australian Journal of Earth Sciences 2022

The Broken Hill Block contains the Paleoproterozoic Willyama Supergroup, host to world-renowned lead–zinc–silver deposits known as Line of Lode. A new large-scale geological structural interpretation has been developed based on construction 11 regional-scale cross-sections and one longitudinal section. Over an extended period major folding during Olarian Orogeny, two distinct sets regional fold...

2007
Martha S. Gilmore Mikhail A. Ivanov Lucia Marinangeli

Recent studies have focused on the question of the stratigraphic sequence and thus the stages of tessera formation, specifically, if tessera re formed by contractional deformation followed by extensional deformation or vice versa. A major question centers on the interpretation of specific lineaments within tesserae as graben (bounded by faults -•60 ø) or, alternatively, open tension fractures (...

2015
Shahnaz Nadir Shahid Jamil Mohammed Hamid

Objective: To find out the prevalence of macrosomic births and its obstetric outcome in diabetic and non diabetic maternities of Saudi nationality of Al-Jouf Region. Material and Methods: This one year study was carried out from January 2012 to December 2012 in Department of Obstetrics and Gynaecology at “Al-Jouf Maternity and Children Hospital”, Sakakha, Al-Jouf Region. Kingdom of Saudi Arabia...

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