Impact of preemptive hospitalization on health outcomes at the temporary COVID-19 hospital in Mexico City: a prospective observational study.

Introduction: In response to the evolution of the coronavirus disease 2019 (COVID-19) pandemic, the admission protocol for the temporary COVID-19 hospital in Mexico City has been updated to hospitalize patients preemptively with an oxygen saturation (SpO) of >90%.

Methods: This prospective, observational, single-center study compared the progression and outcomes of patients who were preemptively hospitalized those who were hospitalized based on an SpO ⩽90%. We recorded patient demographics, clinical characteristics, COVID-19 symptoms, and oxygen requirement at admission.

Mortality limits used in wind energy impact assessment underestimate impacts of wind farms on bird populations.

The consequences of bird mortality caused by collisions with wind turbines are increasingly receiving attention. So-called acceptable mortality limits of populations, that is, those that assume that 1%-5% of additional mortality and the potential biological removal (PBR), provide seemingly clear-cut methods for establishing the reduction in population viability.We examine how the application of these commonly used mortality limits could affect populations of the Common Starling, Black-tailed Godwit Marsh Harrier, Eurasian Spoonbill, White Stork, Common Tern, and White-tailed Eagle using stochastic density-independent and density-dependent Leslie matrix models.

Hydrothermal polymerization towards fully biobased polyazomethines.

Microwave assisted polycondensation for the synthesis of (partially) biobased polyazomethines in water (hydrothermal polymerization) was investigated for the first time in this study. The polyazomethines prepared via this environmentally friendly and simple method show comparable characteristics as the polymers prepared via traditional methods in organic solvents.

Ambient Characterization of Synthetic Fibers by Laser Ablation Electrospray Ionization Mass Spectrometry.

Direct analysis of synthetic fibers under ambient conditions is highly desired to identify the polymer, the finishes applied and irregularities that may compromise its performance and value. In this paper, laser ablation electrospray ionization ion mobility time-of-flight mass spectrometry (LAESI-IMS-TOF-MS) was used for the analysis of synthetic polymers and fibers. The key to this analysis was the absorption of laser light by aliphatic and aromatic nitrogen functionalities in the polymers.

MALDI-TOF MS stability study of model poly(p-phenylene terephthalamide)s.

In the present study, we address the possibility of matrix-assisted laser desorption/ionization (MALDI)-time-of-flight MS analysis-induced chain fragmentation in poly(p-phenylene terephthalamide) (PPD-T) by considering two possible sources: (1) grinding-induced fragmentation resulting from the evaporation-grinding MALDI sample preparation method (E-G method) and (2) in-source/metastable fragmentation induced by the MALDI laser. An analysis of variance (ANOVA) statistical study found, with a high probability, that obtaining MALDI spectra with the effective laser area as large as possible (the "fanned-out" setting) did not cause any chain fragmentation due to the E-G MALDI sample preparation method, even when three additional grinding steps were used. However, the effect of laser fluence was less clear.

The influences of habitat, landscape structure and climate on local distribution patterns of the nuthatch (Sitta europaea L.).

The nuthatch, Sitta europaea L., is a small (23 g), cavity-nesting woodland bird which, since the 1970s, has been expanding its range in Britain. However, within this range, the species is notably scarce in an area of eastern England.

[Sewage sludge].

Current knowledge of sewage sludge is reviewed, particular reference being made to the possible effect on the health of herds of cattle. The following measures should be urgently and seriously considered: more effective watching of sewage disposal; assessments on sewage disposals, related to the costs of alternatives; stricter checks on diffuse sources of pollution (refuse dumps, agriculture, etc.); development of long-term views to prevent the appearance of waste matter injurious to health and putting a stop to methods of production in which these wastes are released.

Some aspects of extra iron supply in veal calf fattening.

Extra iron (5 ppm) in a normal commercial milk replacer given from the end of the sixth week until the end of the sixteenth week of the fattening period influenced food conversion positively without a loss in meat quality. Even when the extra iron was given to the end of the fattening period there was no perceptible improvement of the haematological status of the calf, though liver iron concentration was increased. During all the experiments no stainable iron could be found in bone marrow smears.

Distribution of iron and copper in the liver and spleen of veal calves in relation to the concentration of iron in the diet.

The distribution of iron and copper in the liver and spleen of veal calves was determined in a group of calves fattened with a commercial milk replacer supplemented with 5 ppm iron and in a control group fed the unsupplemented milk replacer. No marked variations were detected in the distribution of iron and copper. A liver biopsy is therefore likely to be a representative sample of the whole liver with respect to iron and copper concentration.

An unusual case of lead poisoning in a honey buzzard (Pernis apivorus).

The diagnosis and treatment of a case of lead poisoning in a honey buzzard (Pernis apivorus) are described. Presenting signs were diarrhoea and weakness. Lead poisoning was suspected after radiography and confirmed by measuring the lead concentration in a venous blood sample.

Clinical, haematological and blood biochemical changes in goats after experimental infection with tick-borne fever.

Tick-borne fever in goats caused by Ehrlichia (Cytoecetes) phagocytophila was characterised by high fever, dullness, anorexia, tachycardia and a slight to moderate inhibition of rumen motility. The animals developed a gradual decline in the total number of circulating white blood cells. There was a decrease in lymphocytes over a short period, followed by an increase.

Comparative observations of fever and associated clinical hematological and blood biochemical changes after intravenous administration of staphylococcal enterotoxins B and F (toxic shock syndrome toxin-1) in goats.

The present investigation was undertaken to examine the characteristics of purified toxic shock syndrome toxin-1 (staphylococcal enterotoxin F) given intravenously to dwarf goats (dose, 0.02 to 20 micrograms kg-1). Rectal temperature, heart rate, rumen motility, plasma zinc and iron concentrations, and certain other blood biochemical and hematological values were studied and compared with the changes seen after intravenous administration of staphylococcal enterotoxin B (dose, 0.

Fever and changes in plasma zinc and iron concentrations in the goat: the role of leukocytic pyrogen.

In goats with trypanosomiasis (T. vivax or T. congolense) no marked fall in plasma zinc concentration was seen despite high temperature peaks, whereas plasma concentrations of iron tended to undergo some decline.

Zinc concentrations in skimmed milk and whole milk samples from healthy and mastitic cows.

Zinc concentrations were determined in skimmed milk and whole milk samples from healthy and mastitic cows. During spontaneous and induced mastitis, a marked decrease of Zn concentration in skimmed milk from the mastitic quarters was observed. Seemingly, there are 2 mechanisms involved in the lowering of Zn concentration in skimmed milk from mastitic quarters: a decline in Zn probably as a consequence of decreases in plasma Zn concentrations and an abrupt redistribution of Zn in the inflamed quarters.

Crimidine (2-chloro-4-(dimethylamino)-6-methylpyrimidine) poisoning in a dog due to ingestion of the rodenticide Castrix.

The diagnosis and treatment of a case of crimidine poisoning in a dog are described. Presenting signs were seizures and vomiting. The vomitus contained a purple coloured cereal grain.

Endotoxin-induced fever and associated haematological and blood biochemical changes in the goat: the effect of repeated administration and the influence of flurbiprofen.

Flurbiprofen, a potent non-steroidal anti-inflammatory and antipyretic agent, was given as an intravenous infusion (2 mg/kg) followed by a bolus injection of 1 mg/kg six hours later. After drug administration body temperature and rumen contractions were slightly depressed, whereas urea values gradually increased; serum sorbitol dehydrogenase (SDH) activity, plasma iron concentration and the number of circulating lymphocytes were significantly lower. Intravenous injection of endotoxin from Escherichia coli O111B4 (0.

Plasma zinc and iron concentrations as measurements for evaluating the influence of endotoxin-neutralizing agents in Escherichia coli endotoxin-induced mastitis.

The influence of bacterial lipopolysaccharides on plasma Zn and Fe concentrations and the endotoxin-neutralizing capacity of polymyxin B was studied in 3 dairy cows. Also, the feasibility of using plasma Zn and Fe concentrations as measurements for evaluating the influence of endotoxin-neutralizing agents in Escherichia coli endotoxin-induced mastitis was studied. A positive relationship was ascertained between the dose of endotoxin given intramammarily (IMM) and the effect on mean values of plasma Zn and Fe concentrations.