605 research outputs found
NEW RECORDS OF MIRIDAE (HETEROPTERA) IN SERBIA
Data on 9 new species for the fauna of Serbia are presented: Dicyphus (Dicyphus) epilobii Reuter, 1883; Europiella decolor (Uhler, 1893); Icodema infuscata (Fieber, 1861); Lygus wagneri Remane, 1955; Orthocephalus brevis Panzer, 1798; Phoenicocoris obscurellus (FallƩn, 1829); Phytocoris (Exophytocoris) scitulus Reuter, 1908; Pinalitus rubricatus (FallƩn, 1807) and Polymerus (Poeciloscytus) palustris Reuter, 1905
COVID-19 in Intensive Care Units
KliniÄki se virus prezentira od vrlo blagih simptoma, blage prehlade pa sve do pneumonije koja može dovesti do akutnoga respiratornog zatajenja i u kasnijoj fazi multiorganskog zatajivanja sa smrtnoÅ”Äu od 2 do 10 %. Kod hospitaliziranih bolesnika intersticijska upala pluÄa i ARDS javljaju se obiÄno tijekom drugog tjedna lijeÄenja, 7 ā 9 dana od poÄetka bolesti. Neinvazivna ventilacijska potpora nije se pokazala uÄinkovitom u lijeÄenju ovog tipa ARDS-a uz postojeÄi dodatni rizik od pojaÄanog Å”irenja bolesti na medicinsko osoblje (otvoreni sustav ventilacije), a odgaÄanje invazivne ventilacijske potpore Äesto dovodi do pogorÅ”anja stanja bolesnika. Bolesnici sa saturacijom 75 ā 80 % i PaO2/FiO2 < 150 zahtijevaju invazivno ventilacijsko lijeÄenje. Kod ovih bolesnika može se javiti fulminantna kardiomiopatija Äak i u stadijima oporavka od bolesti. JoÅ” nije jasno izaziva li infekcija virusnu kardiomiopatiju ili je srÄana disfunkcija posljedica citokinske oluje. Pravovremeno odvajanje od mehaniÄke ventilacije kljuÄni je dio uspjeÅ”nog lijeÄenja COVID-19 bolesnika iz razloga Å”to je uopÄe respiratorna potpora bila u veÄini sluÄajeva graniÄno indicirana. Produženom ventilacijom bolesnika, dužom od 5 do 7 dana stvaraju se uvjeti za naseljavanje drugih patogena poÄesto rezistentnih bakterija i gljivica koje nailaze na izrazito oslabljen imunoloÅ”ki odgovor domaÄina Äime je put prema sepsi znaÄajno skraÄen i ubrzan. Za kontroliranje i uspjeÅ”no lijeÄenje najtežih COVID-19 respiratornih infekcija važna je dobra organizacija jedinica intenzivnog lijeÄenja uz jasno definirane protokole. U takvoj jedinici mora raditi dovoljan broj medicinskog osoblja, prvenstveno najiskusniji lijeÄnici intenzivisti, medicinski tehniÄari koji su ujedno i najvažnije osoblje.The virus develops from very mild symptoms, mild colds, to pneumonia that can lead to acute respiratory failure and ultimately to multiorgan failure with a mortality of 2 to 10%. In hospitalized patients, interstitial pneumonia and ARDS usually occur during the second week of treatment, 7 ā 9 days from the onset of the disease. Non-invasive ventilation support has not been shown to be effective in treating this type of ARDS with the existing additional risk of increased disease spread to medical staff (open ventilation system). But delaying invasive ventilation support often leads to worsening of the patient\u27s condition. Patients with a saturation of 75 ā 80% and PaO2 / FiO2 <150 require invasive ventilation treatment. Fulminant cardiomyopathy may occur in these patients even in the stages of recovery from the disease. It is not yet clear whether the infection causes viral cardiomyopathy or whether cardiac dysfunction is due to a cytokine storm. Early weaning from mechanical ventilation is one of the key aspects of successful treatment of patients with COVID-19 because respiratory support in general was borderline indicated in most cases. Prolonged ventilation of patients for more than 5 ā 7 days creates conditions for the colonization of other pathogens, often resistant bacteria and fungi that encounter a markedly weakened immune response of the host, which significantly shortens and accelerates the path to sepsis. Good organization of intensive care units with clearly defined protocols is important for the control and successful treatment of the most severe COVID-19 respiratory infections. Such units must have a sufficient number of medical staff, primarily meaning the most experienced intensive care physicians, and medical technicians who are essentially the most important personnel
Serbian radicalism 1881-1903: Political thought and practice
Subject to transformation and change as any other political ideology Serbian Radicalism nevertheless revolved round some more or less permanent concepts, the most important being constitutionalism, parliamentary democracy, civil liberties and local self-government. Yet another basic aspect of the Radical Party's ideology, its national programme, may be seen as an external ingredient inasmuch as the national emancipation, liberation and unification of the Serbs were viewed as originating from internal freedom. It was only in the 1890s that their national programme became fully developed. Major features of the Party's political practice, on the other hand, were flexibility, pragmatism and cohesion
Between Democracy and Populism: Political Ideas of the PeopleŹ¹s Radical Party in Serbia:(The Formative Period: 1860Ź¹s to 1903)
Special editions 133. Institut for Balkan Studies, Serbian Academy of Sciences and Art
Sources of the ideology of the Serbian radical movement 1881-1903
The sources of the ideology of Serbian Radicalism were twofold: imported and domestic. The imported (or foreign) influences came in three major waves: 1) European (especially Russian) socialist, anarchist, and populist traditions mainly influencing the group round Svetozar MarkoviÄ and covering the period described as rudimentary Radicalism; 2) strong influence of the French Radical movement both in terms of political programme and organization; 3) British parliamentary and constitutional theory, fully accepted by the Radicals in Serbia by the late 1880s. The ideas drawn from European political experience needed to be transformed, changed, and adapted to suit the specific Serbian political environment. The internal (or domestic) sources of Radicalism were the specific political circumstances of Serbian society political expressions emerging from the ruler, on the one hand, and from political parties, on the other, fundamentally influenced and modified the Radical ideology
Bioethical issues in the development of biopharmaceuticals
Development of biopharmaceuticals is a challenging issue in bioethics. Unlike conventional, small molecular weight drugs, biopharmaceuticals are proteins derived from DNA technology and hybrid techniques with complex three dimensional structures. Immunogenicity of biopharmaceuticals should always be tested in clinical settings due to low predictive value of preclinical animal models. However, non-human primates (NHP) and transgenic mice could be used to address certain aspects of immunogenicity. Substantial efforts have been made to reduce NHP use in biopharmaceutical drug development, e.g. study design improvements and changes in regulatory policy. In addition, several expert groups are active in this field (e.g. NC3Rs, BioSafe, and Biopharmaceutical Technical Group). Despite that, there is an increasing trend of use of NHP in preclinical safety testing of biopharmaceuticals, especially regarding monoclonal antibodies. Other potential bioethical issues related biopharmaceutical drug development are their cost/effectiveness ratio, clinical safety assessment, production of biosimilars, and comparison of their efficacy with placebo in countries without intention to market. Identification of the human genome has opened many new bioethical issues. Development of biopharmaceuticals is an important bioethical issue for several reasons. It connects all aspects of contemporary bioethics: bioĀmedicine (e.g. clinical trials in vulnerable subjects), animal welfare and the most recent adĀvances in biotechnology. In particular, biopharmaceutical drug development is a challenging issue regarding treatment of rare diseases
SIX NEWLY RECORDED SPECIES OF PLANT BUGS (HETEROPTERA: MIRIDAE) IN SERBIA
Heteropteran fauna of Serbia has increased by six newly recorded species: Macrolophus costalis Fieber, 1858, Macrolophus rubi Woodroffe, 1957, Charagochilus spiralifer Kerzhner 1988, Maurodactylus albidus Kolenati, 1845, Phoenicocoris dissimilis (Reuter, 1878), and Plesiodema pinetella (Zetterstedt, 1828). All of them belong to the family Miridae
A Kinetic Study of the Inhibition of Protein Synthesis by Several Antibiotics
The effects of several antibiotics on the initial reaction rates
of the polyphenylalanine and polylysine syntheses were measured
in cell-free systems from Escherichia coli MRE600, stimulated by
polyuridilic and polyadenylic acid, respectively. lVIichaelis-Menten
Ā·Ā·type of dependence on the tRNA concentration, and a sigmoidal
(possibly cooperative) dependence on the polynucleotide concentration
was obtained. Puromycin and chloramphenicol were competitive
inhibitors with respect to tRNA, while erythromycin,
streptomycin and chlorotetracycline were non-competitive inhibitors.
On the other hand, erythromycin was apparently a competitive
inhibitor with respect to the synthetic polynucleotide, while
other above-mentioned antibiotics showed either uncompetitive,
non-competitive or mixed type of inhibition. This kinetic approach
enabled the calculation of inhibition constants for the examined
antibiotics; they ranged from 2.5 x 10-7 mol dmĀ·3 for erythromycin
and streptomycin, to over 1 Ā· 10Ā·4 mol dm-a for puromycin
FIRST RECORD OF DIMORPHOCORIS BEIERI WAGNER 1965 (HETEROPTERA: MIRIDAE) IN SERBIA
A new species for the fauna of Serbia - Dimorphocoris beieri Wagner, 1965, was caught on the Veliki StreÅ”er, the highest peak of the Mount Vardenik. The species is endemic to the Balkan Peninsula, and in addition to Serbia, it has also been recorded in Montenegro on the Mount Durmitor (Wagner 1965, 1973; ProtiÄ et al. 1990). In addition to this, another species of the same genus was recorded in Serbia - D. saulii Wagner, on the Mount Stolovi (ProtiÄ, 2016)
Novi podaci o predatorima lisnih buva (Heteroptera: Miridae)
U Srbiji do sada nije bilo faunistiÄkog prouÄavanja lisnih buva i njihovih prirodnih neprijatelja. Jedino su prouÄavani prirodni neprijatelji kruÅ”kinih lisnih buva - Cacopsylla pyri i C. pyrisuga (PAVIÄEVIÄ, 1977; GRBIÄ et al., 1989; JERINIÄ-PRODANOVIÄ et al., 2010). MeÄu predatorima se navodi nekoliko vrsta Heteroptera iz familija Anthocoridae i Miridae, a GRBIÄ et al. (1989) navode joÅ” i Nabis pseudoferus Remane iz familije Nabidae. U ovom radu obraÄene su dve vrste predatora lisnih buva iz familije Miridae. Deraeocoris (Deraeocoris) flavilinea (A. Costa, 1862) je nova vrsta za faunu Srbije. To je mediteranska vrsta u ekspanziji. Do 1965. bila je poznata samo na Siciliji, a posle proÅ”iruje svoj areal prvo u Italiji, Francuskoj, a sada je rasprostranjena u gotovo svim evropskim državama (KERZHNER, I. M., JOSIFOV M. 1999). U naÅ”im istraživanjima D. flavilinea je utvrÄena na pet vrsta lisnih buva: Cacopsylla bidens, Homotoma ficus, Trioza rhamn, Psyllopsis discrepans i Ps. machinosa. Hypseloeucus visci (Puton) je odgajena sa jedne vrste lisne buve Cacopsylla visci. Prema raspoloživoj literaturi, Hypseloeucus visci do sada u svetu nije utvrÄena kao predator lisnih buva. Ovom istraživanjima je prvi put utvrÄena kao predator lisnih buva i novi je Älan faune Heteroptera Srbije
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