A kortárs jogpozitivizmus perspektívái = The perspectives of contemporary legal positivism

Kutatásunk célja a Hart utáni angolszász jogpozitivizmus történetének feltérképezése, és ezen irányzat legfontosabb problémáinak elemzése volt. Tanulmányainkban amellett érvelünk, hogy a leíró pozitivizmus nem képes adekvát módon magyarázni a jog normativitását. Tézisünk az, hogy a jog erkölcsi autoritásra tart igényt, s ennek az igénynek a feltételrendszeréről nem adhatunk számot egy tisztán leíró elmélet keretén belül, anélkül, hogy erkölcsi érvekhez fordulnánk. Ez az ellenvetés azonban nem érinti a normatív pozitivizmust, mely normatív (erkölcsi és politikai) érvekre kívánja alapozni a jogpozitivizmus védelmét. Gyakran osztott vélekedés, hogy a normatív pozitivizmus mellett a kiszámíthatóság nyújtja a legerősebb érveket. Kutatásunknak ezzel szemben az a következtetése, hogy az 'ésszerű pluralizmus' körülményei között a normatív pozitivizmus mellett a nyilvános ésszerűség egy meghatározott felfogása szolgáltatja a legerősebb érveket. | The aim of our research was to present an overview of the developments of post-Hartian Anglo-American legal positivism and to analyze the central problems of this school of thought. We argue that positivism as a descriptive project is unable to explain adequately law's normativity . Our thesis is that law claims moral legitimacy for itself, and that this claim cannot be substantiated without appealing to moral arguments. This objection, however, does not apply to normative positivism, which purports to make the case for legal positivism by giving normative (moral and political) arguments. It is often suggested that the value of predictability offers the best justification of normative positivism. We claim, however, that under the circumstances of 'reasonable pluralism', a certain conception of public reason can provide the strongest justification for that position

Molecular Background of Toxic-Substances-Induced Morphological Alterations in the Umbilical Cord Vessels and Fetal Red Blood Cells

The relationship between smoking and human health has been investigated mostly in adults, despite the fact that the chemicals originating from sustained maternal smoking disrupt the carefully orchestrated regulatory cascades in the developing fetus. In this study, we followed molecular alterations in the umbilical cord (UC) vessels and fetal red blood cells (RBCs), which faithfully reflect the in vivo status of the fetus. We showed evidence for the decreased level of DNA-PKcs-positive nuclei in samples with smoking origin, which is associated with the impaired DNA repair system. Furthermore, we pointed out the altered ratio of MMP-9 metalloproteinase and its endogenous inhibitor TIMP-1, which might be a possible explanation for the morphological abnormalities in the UC vessels. The presented in vivo dataset emphasizes the higher vulnerability of the veins, as the primary target for the toxic materials unfiltered by the placenta. All these events become amplified by the functionally impaired fetal RBC population via a crosstalk mechanism between the vessel endothelium and the circulating RBCs. In our ex vivo approach, we looked for the molecular explanation of metal-exposure-induced alterations, where expressions of the selected genes were upregulated in the control group, while samples with smoking origin showed a lack of response, indicative of prior long-term in utero exposure

Examining the Sustainability Reporting Practices of Agricultural and Forestry Companies Operating in Hungary

To demonstrate that companies are operating in a sustainable way, in line with the European Green Deal and the Taxonomy Regulation, some companies have already produced sustainability reports. Agricultural companies should also be prepared for this reporting obligation, which can cause considerable difficulties for farmers, so it is assumed that this is not yet common practice. In this research, the sustainability reporting practices of agricultural and forestry companies in Hungary were assessed and analysed. The research sought to find out what the current reporting practices of these companies are and how prepared they are for future regulation. In this paper, the information provided by companies on their websites and after personal contact was analysed using content analysis. The qualitative information gathered was quantified using a scoring method. For evaluating the data, descriptive statistics and pairwise correlation coefficients were applied. It is concluded that although forestry companies publish some level of information and pay more attention to the disclosure of this type of information than agricultural companies, there is a slight gap in both sectors. Moreover, almost a fifth of agricultural companies do not have any information on their websites. This is likely to change in the future, as the sustainability reporting legislation will broaden the range of companies that are required to report, so improvements in this field are expected

Increased Prevalence of Celiac Disease in Patients with Cystic Fibrosis: A Systematic Review and Meta-Analysis

Objectives: Immune regulation seems to be altered in cystic fibrosis (CF), thus potentially predisposing patients to developing autoimmune diseases (AID). In this meta-analysis, we aimed to evaluate the prevalence of celiac disease (CeD) among CF patients as by far the most commonly reported autoimmune disease in this population and, secondly, to review the observations on other, less frequently studied autoimmune diseases. Methods: We conducted a systematic literature search for studies that discussed AIDs among CF patients. Following standard selection and data collection, we calculated pooled raw prevalence with 95% confidence intervals (CI) for biopsy-verified CeD and seropositivity. Results: Out of the 21 eligible studies, 15 reported on CeD. Pooled prevalence of biopsy-verified CeD was 1.8% (CI 1.1–2.7%) according to a homogeneous dataset from six prospective, consecutive screening studies, while it proved to be 2.3% (CI 1.1–4.7%) according to a heterogeneous dataset from the other studies. Tissue transglutaminase IgA positivity was detected in 4.5% of CF cases (CI 2.8–6.9%), while tissue transglutaminase IgA–endomysial antibody IgA double positivity was found in 2.4% of them (CI 1.5–3.9%). Findings on other AIDs were strongly limited. Conclusions: The pooled prevalence of CeD in CF seemed to be more than twice as high compared to the global prevalence; therefore, routine screening of CeD could be considered in CF

Fibrillin-2, tenascin-C, matrilin-2, and matrilin-4 are strongly expressed in the epithelium of human granular and lattice type I corneal dystrophies

Purpose: To determine the extracellular matrix proteins involved in the formation of human granular and lattice type I corneal stromal dystrophies, the expression patterns of fibrillin-2, tenascin-C, matrilin-2, and matrilin-4 were compared in human corneal stromal dystrophy samples. Methods: Ten cases of granular dystrophy, 7 cases of lattice dystrophy, and 6 normal corneal buttons collected during corneal transplantation were examined for their expression patterns of fibrillin-2, tenascin-C, matrilin-2, and matrilin-4 by immunohistochemistry. Results: Highly elevated fibrillin-2, tenascin-C, matrilin-2, and matrilin-4 were observed in the epithelial layer of both granular and lattice type I dystrophies. Fibrillin-2, tenascin-C, and matrilin-4 in the granular dystrophy and all antibodies in the lattice dystrophy showed statistically significant staining in the corneal stroma (p<0.05). Interestingly, fibrillin-2, matrilin-2, and matrilin-4 stained significantly in amyloid plaques of lattice type 1 dystrophy. Conclusions: Fibrillin-2, tenascin-C, matrilin-2, and matrilin-4 may be markers of the pathogenesis of either granular or lattice type I corneal dystrophy, as revealed by immunohistochemical analysis. Each molecule seems to be involved in the regeneration and reorganization of the corneal matrix in granular and lattice type I dystrophies

Helicobacter pylori Infection Is Associated With Carotid Intima and Media Thickening : A Systematic Review and Meta-Analysis

Background Helicobacter pylori (H. pylori) infection affects ≈4.4 billion people worldwide. Several studies suggest that this pathogen impacts the digestive system, causing diverse and severe conditions, and results in extragastrointestinal disorders like vascular diseases. Our study aims to examine the association between H. pylori infection and carotid intima-media thickness. Methods and Results Electronic databases (MEDLINE, Embase, CENTRAL, Web of Science, and Scopus) were searched for studies, comparing the thickness of the carotid intima-media in H. pylori-infected and noninfected individuals listed until October 20, 2020. Statistical analyses were performed using the random effects meta-analysis of model of weighted mean differences with the corresponding 95% CI using the DerSimonian and Laird method. The protocol was registered in advance in PROSPERO (International Prospective Register of Systematic Reviews; CRD42021224485). Thirteen studies were found meeting inclusion criteria for our systematic review and meta-analysis, presenting data on the thickness of the carotid intima-media considering the presence of H. pylori infection. Altogether, 2298 individuals' data were included (1360 H. pylori positive, 938 negative). The overall carotid intima-media thickness was significantly larger among infected patients compared with uninfected participants (weighted mean difference: 0.07 mm; 95% CI, 0.02-0.12; P=0.004; I2=91.1%; P<0.001). In case of the right common carotid artery, the intima-media thickening was found to be significant as well (weighted mean difference, 0.08 mm; 95% CI, 0.02-0.13, P=0.007; I2=85.1%; P<0.001), while it showed no significance in the left common carotid artery (weighted mean difference, 0.12 mm; 95% CI, -0.05 to 0.28, P=0.176; I2=97.4%; P<0.001). Conclusions H. pylori infection is associated with increased carotid intima-media thickness. Therefore, the infection may indirectly contribute to the development of major vascular events

Network meta-analysis of randomized controlled trials on esophagectomies in esophageal cancer : The superiority of minimally invasive surgery

Previous meta-analyses, with many limitations, have described the beneficial nature of minimal invasive procedures.To compare all modalities of esophagectomies to each other from the results of randomized controlled trials (RCTs) in a network meta-analysis (NMA).We conducted a systematic search of the MEDLINE, EMBASE, Reference Citation Analysis (https://www.referencecitationanalysis.com/) and CENTRAL databases to identify RCTs according to the following population, intervention, control, outcome (commonly known as PICO): P: Patients with resectable esophageal cancer; I/C: Transthoracic, transhiatal, minimally invasive (thoracolaparoscopic), hybrid, and robot-assisted esophagectomy; O: Survival, total adverse events, adverse events in subgroups, length of hospital stay, and blood loss. We used the Bayesian approach and the random effects model. We presented the geometry of the network, results with probabilistic statements, estimated intervention effects and their 95% confidence interval (CI), and the surface under the cumulative ranking curve to rank the interventions.We included 11 studies in our analysis. We found a significant difference in postoperative pulmonary infection, which favored the minimally invasive intervention compared to transthoracic surgery (risk ratio 0.49; 95%CI: 0.23 to 0.99). The operation time was significantly shorter for the transhiatal approach compared to transthoracic surgery (mean difference -85 min; 95%CI: -150 to -29), hybrid intervention (mean difference -98 min; 95%CI: -190 to -9.4), minimally invasive technique (mean difference -130 min; 95%CI: -210 to -50), and robot-assisted esophagectomy (mean difference -150 min; 95%CI: -240 to -53). Other comparisons did not yield significant differences.Based on our results, the implication of minimally invasive esophagectomy should be favored