Search results for "LENI"
showing 10 items of 756 documents
The effect of depression and the reframing strategy on the level of satisfaction with family life in infertile and post-miscarriage couples: dyadic a…
2021
Pary zmagające się z bezpłodnością, jak i te po doświadczeniu poronienia poddawane są działaniu wielu stresorów, w obliczu których reagują lękiem, żalem i depresją, co negatywnie wpływa na płodność i wiąże się ze zwiększonym ryzykiem poronienia. Stosowanie różnych strategii radzenia sobie wydaje się mieć różny wpływ na stres związany z niepłodnością i doświadczeniami poronienia. Celem pracy było zbadanie związków miedzy depresyjnością związaną z niepłodnością i poronieniem a zadowoleniem z życia rodzinnego oraz roli stosowania strategii przekształcenia znaczenia sytuacji w przewidywaniu zadowolenia z życia rodzinnego w grupie depresyjnych par bezpłodnych oraz po doświadczeniu poronienia. W …
Splenic Graulomatosis
2015
Learning objectives Background Findings and procedure details Conclusion Personal information References
Zirconocene [Cp2Zr] synthon and benzynezirconocene complexes as tools in main group element chemistry
1998
Abstract Interactions between zirconocene or benzyne zirconocene and unsaturated species incorporating main group elements lead to a variety of new metallaheterocycles. Efficient new methodologies of regiospecific syntheses of mono-, bi-, or tricyclic systems incorporating phosphorus, nitrogen, selenium, antimony, germanium or tin are reported.
SYNTHESIS OF SELENIUM-CONTAINING CROWN ETHERS AND RELATED COMPOUNDS
1991
Abstract The synthesis of the first examples of selenium-containing crown ethers from the benzene diselenolate anion and dichalcogenated ethers is reported. The reaction is highly dependent on the experimental conditions, particularly the concentration. 1H NMR and mass spectrometry were used to confirm the structures of the new compounds.
Structural and Spectroscopic Studies of the PCP-Bridged Heavy Chalcogen-Centered Monoanions [HC(PPh2E)(PPh2)]− (E = Se, Te) and [HC(PR2E)2]− (E = Se,…
2009
Selenium- and tellurium-containing bis(diphenylphosphinoyl)methane monoanions were prepared by oxidation of the anion [HC(PPh2)2]− with elemental chalcogens. The selenium-containing isopropyl derivative was synthesized by generating [H2C(PiPr2)2] via a reaction between [H2C(PCl2)2] and 4 equiv of iPrMgCl prior to in situ oxidation with selenium followed by deprotonation with LiNiPr2. The solid-state structures of the lithium salts of the monochalcogeno anions TMEDA·Li[HC(PPh2E)(PPh2)] (E = Se (Li7a), E = Te (Li7b)) and the dichalcogeno anions TMEDA·Li[HC(PR2Se)2] (R = Ph (Li8a), iPr (Li8c)) revealed five- and six-membered LiEPCP and LiSePCPSe rings, respectively. The homoleptic group 12 com…
Zasady doskonalenia jakości informacji w internetowych serwisach bibliotecznych
2017
Celem artykułu jest przedstawienie podstawowych zasad zarządzania jakością informacji oraz odpowiadających im mechanizmów, narzędzi i technik doskonalenia jakości informacji dla internetowych serwisów bibliotecznych. W artykule opisano cztery zasady zarządzania jakością informacji (zaproponowane przez M. J. Epplera) odniesione do dziedziny serwisów internetowych, w szczególności zaś wynikające z nich specyficzne dla tych serwisów działania, techniki i narzędzia umożliwiające poprawę jakości informacji. Przedstawione zasady to: zasada integracji, walidacji, kontekstualizacji oraz aktywacji. Zaprezentowane działania, techniki i narzędzia, które wynikają ze stosowania ogólnych zasad doskonalen…
Parvalbumin Interneurons and Perineuronal Nets in the Hippocampus and Retrosplenial Cortex of Adult Male Mice After Early Social Isolation Stress and…
2021
Both early life aversive experiences and intrinsic alterations in early postnatal neurodevelopment are considered predisposing factors for psychiatric disorders, such as schizophrenia. The prefrontal cortex and the hippocampus have protracted postnatal development and are affected in schizophrenic patients. Interestingly, similar alterations have been observed in the retrosplenial cortex (RSC). Studies in patients and animal models of schizophrenia have found alterations in cortical parvalbumin (PV) expressing interneurons, making them good candidates to study the etiopathology of this disorder. Some of the alterations observed in PV+ interneurons may be mediated by perineuronal nets (PNNs)…
A case report of pulmonary vein isolation performed in a patient with polysplenia and interrupted inferior vena cava
2021
Abstract Background Pulmonary vein isolation (PVI) has entrenched itself as one of the main approaches for the treatment of paroxysmal symptomatic atrial fibrillation (AF). Pulmonary vein isolation prevents focal triggers from pulmonary veins from initiating AF paroxysms. As standard—PVI is performed through the inferior vena cava (IVC) approach, through the femoral vein. However, there are conditions when this approach is not appropriate or is not available. Case summary We report a case of a 53-year-old male who was referred to Pauls Stradins Clinical University Hospital for PVI due to worsening AF. Due to the rare anatomical variant of the venous system, the standard approach to PVI coul…
An invasive species may be better than none: invasive signal and native noble crayfish have similar community effects
2014
14 pages; International audience; Human activities have resulted in the decline of native crayfish and promoted the spread of invasive crayfish species in European fresh waters, threatening ecosystem structure and functioning. We compared effects of native noble crayfish (Astacus astacus), invasive signal crayfish (Pacifastacus leniusculus) and of the absence of crayfish on leaf litter breakdown and invertebrate prey density and biomass in stream ecosystems. In microcosm experiments, invertebrate shredder density was significantly reduced by crayfish presence but similarly affected by the two crayfish species. While crayfish did not directly influence leaf litter breakdown, their presence r…
Serum metal levels in a population of Spanish pregnant women
2022
Objective: To describe serum levels of calcium, copper, selenium, magnesium, iron and zinc and evaluate their relationship with maternal socio-demographic characteristics and dietary variables in women in the first trimester of pregnancy. Method: Cross-sectional study with 1279 participants from the INMA cohorts. Results: The concentrations of the elements analyzed were within the normal range. Associations with higher levels of these metals were found for calcium with white meat intake (p = 0.026), for cop-per with excess body weight (p 71 g/day) (p = 0.014) and having been born in Spain (p = 0.001). Further, lower iron levels were associated with being overweight (p = 0.021) or obese (p <…