34 research outputs found
ZarzÄ d majÄ tkiem wspĂłlnym maĹĹźonkĂłw : zagadnienia wybrane
The large number of commentaries in this special issue reflect the need that so many people have to express themselves as a way of releasing the anxieties and integrating the hopes that the COVID-19 pandemic has engendered in individuals and groups around the world. The guest editors of this special issue provide the following comments in reflecting on the major themes that are envisioned for travel and tourism in a COVID-19 world. Comments from the guest editors are individually identified in this conclusion editorial
Animal-based agriculture, phosphorus management and water quality in Brazil: options for the future
Oxygen-isotope and total beta-radioactivity measurements on 10 m ice cores from the Antarctic Peninsula
As part of the Glaciology of the Antarctic Peninsula (GAP) programme, the snow cover at 25 stations was sampled to 10 m depth for oxygenâisotope and total β-radioactivity analysis. The mean annual oxygenâisotope ratio correlates satisfactorily with 10 m temperature despite the complex topography of the area and suggests on average that climatic trends in the region are fairly systematic. The relationship with temperature is similar to that derived from a simple model in which an air mass initially of maritime subtropical characteristics is progressively cooled as it moves towards the region. The detailed isotope profiles show that for future deep drilling the most easily interpretable climatic information will be found in the more continental areasâon the cast coast and on the plateau in the south of the region. The degree of continentality of particular sites is reflected in the amplitude of the annual wave in the upper portion of the isotope ratio profile as well as in the accumulation rate
Analyses of two ice cores drilled at the ice-sheet margin in West Greenland
In 1978 two ice cores were drilled to depths of 46 and 92 m respectively at Camp 3, at the west margin of the Greenland ice sheet. Both core drillings reached bedrock. In addition, surface samples were collected in the marginal area along an estimated flow line.
The δl8O profiles of the two ice cores and of the surface samples show similar features. All three δ180 records reveal the characteristic shift (of 5â6 per mil for the Pleistocene-Holocene transition 11 000 years ago) observed in Greenland deep ice cores from Camp Century and Dye 3.
The δ18O results, as well as the measured temperature profiles in the bore holes, are used to provide more insight into the rheology of the ice sheet. The analyses of marginal ice samples is an important supplement to deep ice-core analyses
Sequencing and Detection of Polymorphisms in the 5' End of the Human Endogenous Retroviral Element, HRES-l
Fragments of the 5â long terminal repeat (L TR) of the human endogenous retroviral element, HRES-I, were amplified. Single strand conformation analysis of these fragments in combination with sequencing revealed two polymorphic nucleotides, namely a HindIII and an Eco57I polymorphic site. Moreover, a number of differences from the previously published HRES-l L TR sequence were detected. The linkage pattern of the two polymorph isms suggested the existence of three allelic forms of HRES-l. The frequencies of the genotypes and alleles of HRES-I were determined in 158 individuals. The detection of HRES-I markers may be useful to study associations between this endogenous retrovirus and various diseases
Microparticles, soil, derived chemical components and sea salt in the Hans Tausen Ice Cap ice core from Peary Island, North Greenland
Immune Cell Alterations in Patients with Psychosis: A Comprehensive Systematic Review and Meta-analysis
Background: Psychotic disorders have consistently been associated with inflammatory changes, including alterations in the number of immune cells in the peripheral blood. However, there have been no comprehensive meta-analysis, which have evaluated the amount of circulating immune cells from both the myeloid and lymphoid line including specialized subsets in blood and cerebrospinal fluid (CSF) of patients with psychotic disorders compared to healthy controls. The aim of this study was therefore to systematically evaluate the circulating immune cells including subsets in blood and CSF from patients with psychotic disorders compared to healthy controls. Methods: Multiple databases (PubMed, EMBASE, Cochrane Library, Web of Science, ClinicalTrials.gov and PsycINFO) were searched for eligible studies up until the 18th of October 2022. All studies investigating circulating immune cells in blood and CSF from patients with psychotic disorders (ICD-10: F20 and F22-29) compared to healthy controls were included. One author screened titles and abstracts, and 2 independent reviewers examined full-text reports. Studies that did not include healthy control individuals or included control individuals with recent hospital contacts or admissions that might affect immune cell functioning were excluded. Results: A total of 16,585 articles were identified, after the removal of duplicates and screening by title and abstract, 465 studies were included for full text inspection. Data-extraction is still ongoing and thus the final results of the meta-analysis are not yet available, but preliminary results will be presented from the number of articles where data-extraction have been completed. Conclusion: The preliminary review of the articles has pointed towards a lack of articles that examines potential differences in the number of immune cells including subsets in the CSF of patients with psychotic disorders compared to healthy controls. The CSF is a medium of particular interest because of its closer proximity to the brain compared to peripheral blood. Furthermore, there is a need for more studies with results that are controlled for obesity and smoking, which are both seen more frequently in psychotic patients, and both influence inflammatory parameters