• During these periods, hypoxia and anoxia were dominated by watershed-derived organic matter loading. (int-res.com)
  • The responses of primary production, hypoxia, and anoxia to these hydrologically contrasting years and resultant organic matter loadings help distinguish watershed from internal forcing of O 2 dynamics and fish kills. (int-res.com)
  • The expert testified that the injury depicted on the imaging of the brain obtained within days of the child's birth demonstrated a mixed pattern of partial prolonged hypoxia with anoxia, which was consistent with the injury occurring during the mother's labor. (milawyersweekly.com)
  • hypoxia or anoxia from such causes as near-drowning, suffocation, cardiac arrest, and other problems. (bengalurukidsortho.in)
  • However, plants can experience a lower oxygen availability (hypoxia) or total absence of oxygen (anoxia) owing to flooding of the soil or as a consequence of the anatomical structure of some tissues. (ristudypost.com)
  • Plants cannot survive for long periods of time under hypoxia or anoxia, but some species can avoid or withstand anaerobiosis. (ristudypost.com)
  • Ethylene production under anoxia is prevented by the lack of oxygen, required for the conversion of 1-aminocyclopropane1-carboxylic acid (ACC) to ethylene, while production of this hormone is observed under hypoxia. (ristudypost.com)
  • It is capable of surviving complete anoxia for an hour without ill effects, and at a much higher temperature than most other hypoxia-tolerant animals. (ipmallorca.com)
  • This is the first strong evidence for the development of global ocean anoxia in the Late Jurassic and the breakthrough result demonstrating a very close genetic relationship between mineral/petroleum resource formations and paleocean environmental changes. (u-tokyo.ac.jp)
  • anoxia - an absence of oxygen supply to an organ's tissues leading to cell death. (brainline.org)
  • If we continue business-as-usual CO2 emissions, ocean pH will eventually drop to a point at which a host of other chemical changes such as anoxia (an absence of oxygen) are expected. (skepticalscience.com)
  • Zunli Lu, professor of Earth and environmental sciences at Syracuse University, and his students took measurements of iodine concentration in carbonate rocks from that period, contributing important findings about oxygen levels at various ocean depths. (scitechdaily.com)
  • Their data, combined with computer modeling simulations, suggested that there was no evidence of anoxia --- or lack of oxygen -- strengthening during the extinction event in the shallow ocean animal habitat where most organisms lived, meaning that climate cooling that occurred during the Late Ordovician period combined with additional factors likely was responsible for LOME. (scitechdaily.com)
  • On the other hand, there is evidence that anoxia in deep oceans expanded during that same time, a mystery that cannot be explained by the classic model of ocean oxygen, climate modeling expert Alexandre Pohl says. (scitechdaily.com)
  • Anoxia, or lack of oxygen to the brain, which is a common complication of cardiac arrest, can also bring about a vegetative state. (brainline.org)
  • Theories of the cause range from asteroid impact or volcanic eruption, to "anoxia," (seawater depleted of oxygen. (chick.com)
  • In this review, we describe some classical aspects of the physiology of plants under limited oxygen availability, highlighting new evidence of gene modulation by anoxia arising from recent microarray experiments using Arabidopsis seedlings. (ristudypost.com)
  • When blood volume remains approximately constant, as derived from the spectrophotometry data, good correlation is seen between calculated plots made of changes in the transverse relaxation rate, delta R2*, and the oxygen saturation as measured by spectrophotometry for much of the time course of the respiratory challenges of anoxia, apnea and hypercapnia. (ox.ac.uk)
  • The strong temporal link between these perturbations and extinctions highlights the possibility that dynamic marine oxygen fluctuations, rather than persistent, stable global anoxia, played a major role in driving the extinction. (lu.se)
  • This work, which is unique in this domain in Mali, will permit to understand perinatal anoxia in Mali and to improve its management. (scirp.org)
  • The expert also testified that the imaging reflected an acute MCA territory infarction in the perinatal period, which correlated with the time of the depression seen on the fetal heart monitoring strips. (milawyersweekly.com)
  • Mass Extinction Causality: Records of Anoxia, Acidification, and Global Warming during Earth's Greatest Crises. (wikipedia.org)
  • However, we were surprised to see expanded anoxia in the lower ocean since anoxia in Earth's history is generally associated with volcanism-induced global warming. (scitechdaily.com)
  • The Ordovician Period spans the time in Earth's history from 485.4 ±1.9 Ma to 443.8 ±1.5 Ma, and is the second period of the Paleozoic Era. (darwinsdoor.co.uk)
  • Throughout Earth's history, there have been periods where climate changed dramatically. (skepticalscience.com)
  • Although this drug may improve maternal hypotension associated with septic shock and anaphylaxis, it may result in uterine vasoconstriction, decreased uterine blood flow, and fetal anoxia. (drugs.com)
  • Unlike with rapid mass extinctions, like the Cretaceous -Tertiary extinction event where dinosaurs and other species died off suddenly some 65.5 million years ago, Finnegan says LOME played out over a substantial period of time, with estimates between less than half a million to almost two million years. (scitechdaily.com)
  • Through phylogenetic analysis, the research team discovered that modern deep-sea mussels are the descendants of shallow-water mussels, and their ancestors migrated to the deep sea approximately 110 million years ago, providing evidence to support a hypothesis that their ancestors survived through an extinction event during the global anoxia period associated with the Palaeocene-Eocene Thermal Maximum which occurred around 57 million years ago. (asianscientist.com)
  • 360 million years ago in the Late Devonian period, the environment that had clearly nurtured reefs for at least 13 million years turned hostile and the world plunged into the second mass extinction event. (skepticalscience.com)
  • What Veron 2008 found was each mass extinction event corresponded to periods of quickly changing atmospheric CO2. (skepticalscience.com)
  • The availability of molecular tools for genome-wide analyses of Arabidopsis thaliana seedlings transcriptome opens new opportunities for the study of plant responses to anoxia. (ristudypost.com)
  • If the part of neonatal anoxia in neonatal mortality is known in Mali [6] , however, its epidemio-clinical characteristics had never been studied before. (scirp.org)
  • Investigating variations in such relatively short periods of time requires high-resolution pollen analysis, which is considered to be a priority in modern multidisciplinary investigations of palaeoenvironmental changes (e.g. (springer.com)
  • To paint a picture of the oceanic ecosystem during the Ordovician Period, mass extinction expert Seth Finnegan, associate professor at UC Berkeley, says that seas were full of biodiversity. (scitechdaily.com)
  • HABs can confound ecosystem services through anoxia, biological stress, and the production of toxins, called cyanotoxins, that can be hazardous to ecosystem and human health. (auburn.edu)
  • This has the potential to lead to toxic concentrations of trace metals, sulfide, and ammonia in the hypolimnion, combined with anoxia, which can result in declines in biodiversity as well as fish kills. (versicolor.ca)
  • Detail images of fossils from the Ordovician Period outcrop on Anticosti Island, Quebec, Canada. (scitechdaily.com)
  • The new Ordovician Period was still contested until the end of the 1890s, but it wasn't until 1960 that the name finally became official. (darwinsdoor.co.uk)
  • The second most severe mass extinction occurred at the end of the Ordovician period, resulting in ~85% loss of marine species between two extinction pulses. (lu.se)
  • There are five most significant mass extinctions, known as the "big five," where at least three-quarters of all species in existence across the entire Earth faced extinction during a particular geological period of time. (scitechdaily.com)
  • Plant development after germination is linked to the presence of exuberant deposits to be exempted: to emerge after a flood and to be stable over periods ranging from the biological year for annual pioneer species to the century for perennial species in mature hardwood alluvial forest. (encyclopedie-environnement.org)
  • filter by provider show all FAO species catalogs Fishbase wikipedia EN. (ipmallorca.com)
  • In this article, we analyze the results obtained by transcript profiling of Arabidopsis seedlings under anoxia and discuss the results in relation to the existing literature on the anaerobic response of higher plants. (ristudypost.com)
  • There is no cure for this condition, and it might be a permanent condition for many of you after prolonged long periods of use. (restarajasthan.com)
  • Because Atropine is a mild anesthetic, it is considered safe for long periods, but it is dangerous once it has become habituated. (restarajasthan.com)
  • If you find yourself suddenly becoming unconscious for long periods, you should first discuss your possible causes and consider having it checked in a health clinic, testo max ultimate. (restarajasthan.com)
  • Phytoplankton blooms followed periods of elevated N loading, except during extremely high runoff periods (e.g. hurricanes), when high rates of flushing and reduced water residence times did not allow sufficient time for bloom development. (int-res.com)
  • Evolutionists are scrambling to find evidence of the huge time periods necessary for random mutation to create modern man from the primordial soup. (chick.com)
  • amnesia - lack of memory about events occurring during a particular period of time. (brainline.org)
  • Mirror Lake has demonstrated a significant increase in the ice-free period over the past 114years, with the lake currently experiencing an average of 24 more days being ice-free than in the early 1900s… Climate-driven effects on the lake trout population in Mirror Lake will be further exacerbated by the lack of complete mixing in the spring. (versicolor.ca)
  • Phosgene's irritating quality can be mild and delayed, which may result in a lack of avoidance leading to exposure for prolonged periods. (cdc.gov)
  • With regard to children, the consensus was that "these criteria may be inapplicable for children under 5 years of age since there are indications that the immature nervous system can survive significant periods of electrocerebral silence. (medscape.com)
  • As groundwater levels become shallower than these depth bands, crop yields declined sharply (~0.05 kg m-2 on average for every 10 cm increase in water table level), suggesting negative effects of waterlogging and root anoxia. (conicet.gov.ar)
  • The effects of anoxia on starch synthesis genes are limited, and the pathway of starch degradation is not induced under anoxia in Arabidopsis thaliana. (ristudypost.com)
  • The last millennium was the key period for the development of modern vegetation types and the formation of cultural landscapes. (springer.com)
  • The Ordovician was a key period for the development of life, and while much of this became extinct, the survivors continued to adapt in the following Silurian . (darwinsdoor.co.uk)
  • Lakes are experiencing a modern period of increased eutrophication due to cultural impacts and climate change. (auburn.edu)
  • Systemic damage is usually a secondary result of anoxia caused by loss of lung function. (cdc.gov)
  • The périnatal anoxia (PA) is a major health issue in Mali because of its frequency and severity. (scirp.org)
  • The production of alanine is indeed relevant in rice roots, reaching up to 1.2% of the dry weight after 24 hr under anoxia. (ristudypost.com)
  • The presence of active crops prevented recharge events (sharp water table level raises) observed during rainy periods in fall and spring. (conicet.gov.ar)
  • The second pulse occurred due to anoxia caused by a Late Hirnantian sea level transgression. (darwinsdoor.co.uk)
  • Genes coding for enzymes of the lipid degradation pathway are repressed by anoxia, mostly at the level of lipases, while the genes encoding b-oxidation and the glyoxylate cycle genes are unaffected or moderately induced by anoxia. (ristudypost.com)
  • RESULTS: Worldwide there were 334 publications that met the criteria during the study period. (who.int)
  • Prolonged periods of anoxia also may lead to increased internal phosphorus loading in the lake…Precambrian shield lakes, such as Mirror Lake, typically have low rates of internal phosphorus loading, but also tend to be phosphorus limited. (versicolor.ca)
  • Besides the important role of fermentative metabolism, the AHB/NR1-dependent NADH utilization can be useful to regenerate nicotinamide adenine dinucleotide (NAD) under anoxia. (ristudypost.com)
  • The prognosis was poor in grade III anoxia in our patients (56%) of deaths. (scirp.org)
  • Patients in a vegetative state are unconscious and unaware of their surroundings, but they continue to have a sleep-wake cycle and can have periods of alertness. (brainline.org)
  • The lake exhibited normal spring turnover in 2016, but in 2017, when the difference between surface and deep water chloride in the January to April period increased by approx. (versicolor.ca)
  • The epaulette shark is a basal cartilaginous fish that in its natural environment experiences cyclic hypoxic periods. (ipmallorca.com)
  • We identified a transition period of 20 years between ad 1590 and 1610, when forest cover was significantly reduced and the area was partly transformed into open land used for farming activities. (springer.com)
  • A strong increase in local cultivation was noted after ad 1750 and became even stronger in the period ad 1810-1940. (springer.com)