Search results for "BD"

Pārejas metālu halkogenīdu 1D un 2D nanostruktūru sintēze un raksturošana

2016

Darbā tiek aplūkotas divdimensiju (2D) pārejas metālu halkogenīdu - volframa un molibdēna disulfīdu - īpašības un iegūšanas metodes. Ir demonstrēta šo 2D mikrokristālu sintēzes metode no gāzveida reaģentiem, kā arī izstrādātas jaunas metodes viendimensiju (1D) metālu oksīdu nanovadu core-shell heterostruktūru izgatavošanai, veidojot plānus disulfīdu pārklājumus uz ZnO nanovadiem, izmantojot ar reaktīvo magnetrona izputināšanu iegūtu pārklājuma sulfurēšanu vai attiecīgo pārejas metālu amonija sāļu pārklājuma termolīzi gāzveida sēra klātbūtnē. Iegūtās nanostruktūras tika izgatavotas un raksturotas, izmantojot LU CFI pieejamās zinātniskās iekārtas. Darbs sastāv no literatūras apskata un eksper…

Modelling the dependence on medium and ionic strength of molybdate acidbase properties, and its interactions with phytate

2016

The importance of molybdenum from a biological, environmental and technological point of view is very well known since many decades [15]. In particular, it is mainly present in aqueous solutions as molybdate (MoO42), which is the biologically active form, entering in the cells by active transport systems. Though molybdate is the major species in neutral to basic pH conditions, at lower pH it undergoes protonation and, chiefly, polymerization, even at millimolar concentration levels [2]. Consequently, the modelling of its speciation and acidbase properties is not very simple, as demonstrated by the nonhomogeneity of available literature data. In this light, our group has started a systematic…

Oxygen Atom Transfer Catalysis by Dioxidomolybdenum(VI) Complexes of Pyridyl Aminophenolate Ligands

2021

A series of new cationic dioxidomolybdenum(VI) complexes [MoO2(Ln)]PF6 (2-5) with the tripodal tetradentate pyridyl aminophenolate ligands HL2-HL5 have been synthesized and characterized. Ligands HL2-HL4 carry substituents in the 4-position of the phenolate ring, viz. Cl, Br and NO2, respectively, whereas the ligand HL5, N-(2-hydroxy-3,5-di-tert-butylbenzyl)-N,N-bis(2-pyridylmethyl)amine, is a derivative of 3,5-di-tert-butylsalicylaldehyde. X-ray crystal structures of complexes 2, 3 and 5 reveal that they have a distorted octahedral geometry with the bonding parameters around the metal centres being practically similar. Stoichiometric oxygen atom transfer (OAT) properties of 5 with PPh3 wer…

Peruskoulun 5.-6.-luokkalaisten MBD-oppilaiden koulumotivaatio heidän itsensä arvioimana

2000

Adalimumab in active ulcerative colitis: A “real-life” observational study

2013

Abstract Background and aims The effectiveness of adalimumab in the treatment of ulcerative colitis is under debate. Although controlled trials have shown that adalimumab is significantly better than placebo, the absolute clinical benefit is modest. We report data on the effectiveness of adalimumab in a cohort of ulcerative colitis patients treated in 22 Italian centres. Methods All patients with active disease treated with adalimumab were retrospectively reviewed. Co-primary endpoints were clinical remission at weeks 4, 12, 24 and 54. Secondary endpoints were sustained clinical remission, steroid discontinuation, endoscopic remission and need for colectomy. Results Eighty-eight patients we…

Electromyographic Studies in Abdominal Exercises: A Literature Synthesis

2008

Abstract Objective The purpose of this article is to synthesize the literature on studies that investigate electromyographic activity of abdominal muscles during abdominal exercises performance. Methods MEDLINE and Sportdiscus databases were searched, as well as the Web pages of electronic journals access, ScienceDirect, and Swetswise, from 1950 to 2008. The terms used to search the literature were abdominal muscle and the specific names for the abdominal muscles and their combination with electromyography, and/or strengthening, and/or exercise, and/or spine stability, and/or low back pain. The related topics included the influence of the different exercises, modification of exercise positi…

Spinal anaesthesia in a patient with post-spine surgery dural ectasia.

2013

Dural sac ectasia is a very infrequent anatomical abnormality, usually caused by connective tissue diseases, as Marfan syndrome. Very few cases have been described being a consequence of a previous spine surgical procedure. We describe the case of an elderly patient who should be operated on twice due to sub-occlusive colon disease. Surgery was performed under spinal anaesthesia. A dural sac ectasia was suspected after the first procedure and the abdominal X-ray was reviewed. The characteristics of the anatomical alteration and the course of both anaesthetic procedures were described. X-ray and CT images were provided.

Early Treatment of Systemic Juvenile Idiopathic Arthritis with Canakinumab and Complete Remission After 2 Years of Treatment Suspension: Case Report …

2019

Systemic juvenile idiopathic arthritis (sJIA) is an autoinflammatory disease characterised by fever and arthritis. We describe the case of a 14-year-old girl hospitalised with fever associated with rash, myalgia, arthralgia and polyarticular involvement. Examinations revealed increased levels of C-reactive protein, erythrocyte sedimentation rate, ferritin, triglycerides, leukocytes, neutrophils, lactate dehydrogenase, fibrinogen, aspartate aminotransferase (AST), alanine aminotransferase (ALT) and γ-glutamyl transferase (GGT). Bone marrow biopsy showed polyclonal leukocyte activation. A genetic study revealed a heterozygous mutation of the MEFV gene, c.442G>C (E148Q), which is typical of…

Myopathy with hexagonally cross-linked crystalloid inclusions: delineation of a clinico-pathological entity.

2010

A novel myopathy characterized by hexagonally cross-linked tubular arrays has been reported in five patients. We studied the clinical and histopathological features of five additional unrelated patients with this myopathy. Patients experienced exercise intolerance with exercise-induced myalgia and weakness, without rhabdomyolysis. One patient additionally presented mild permanent pelvic girdle muscle weakness. Age at onset varied between 13 and 56 years. The inclusions were eosinophilic on H and E, bright red with modified Gomori’s trichrome stains, present in type 2 fibers, and revealed immunoreactivity selectively for a caveolin-3-antibody. Ultrastructurally, the inclusions showed a highl…

Hypokalemic rhabdomyolysis associated with Bartter's syndrome.

1983

Severe potassium deficiency is an uncommon cause of rhabdomyolysis. We recently treated a 45-year-old patient with myalgia, serious generalized weakness, increased serum creatine kinase and myoglobin level as well as excessive hypokalemia. Histological examination of deltoid muscle biopsy showed rhabdomyolysis. After complete recovery of muscle damage by potassium substitution Bartter's syndrome proved to be the cause of initial and persistent hypokalemia.