Лісова політика

У методичних рекомендаціях наведено теоретичні засади та основні поняття лісової політики; принципи, компоненти, цілі, задачі лісової політики; систему інструментів лісової політики; а також методику виконання практичних робіт.Методичні рекомендації упорядковані у співавторстві з колективом кафедри таксації лісу та лісового менеджменту Національного університету біоресурсів і природокористування України (П. Лакида, П. Кравець, О. Павліщук)

SYSTEMIC ARTERIAL HYPERTENSION ASSOCIATED WITH CHRONIC OBSTRUCTIVE LUNG DISEASE

The aim of the study is to summarize our own research experience on interaction of respiratory system and blood circulation in patients with chronic obstructive lung disease (COLD). The main directions of the study include screening of combination of COLD and systemic arterial hypertension (SAH); pathogenesis of SAH and COLD; screening of the first dose effects of various antihypertensive drugs subject to their influence on respiratory function and a gas homeostasis. It has been revealed that prevalence of SAH in patients with COLD significantly exceeds the population rate. SAH is characterized by daily stability of arterial blood pressure, low night blood pressure reduction and high loading pressure in patients with COLD. Antihypertensive efficiency of the first doses of anthenol, indapamide, perindopril and telmisartan are comparable on obligation and blood pressure reduction rate. The first dose of the receptor antagonists to angiotensin II telmisartan provides a significant gain of peak expiratory flow, similar, but weaker effect is observed in response to indapamide intake

Nickel(II) Complexes with Dithiadiiminoamine and Dithiabis(thiosemicarbazone) Ligands

4,7-Dithiadecane-2,9-dione (Dtdk) serves as a starting point for generation of multidentate nitrogen/sulfur chelating agents. Condensation with ethylenediamine or diethylenetriamine yields the neutral hexadentate ligands 1,14-diamino-4,11-dimethyl-6,9-dithia-3,12-diazatetradeca-3,11-diene (Dtdida) and 15-amino-9-methyl-4,7-dithia-10,13-diazapentadec-9-en-2-one (Dtidak) respectively, while the diketone\u27s bis(thiosemicarbazone), itself a neutral ligand, may be deprotonated to form the hexadentate dianion Dtdtz2-. Blue/violet nickel(II) complexes with these ligands have been prepared, viz. Ni(Dtdida)(CIO4)2·0.5H2O 1, Ni(Dtidak)(ClO4)2·0.5CH3CN 4, Ni(DtdtzH2)(ClO4)2 2, and Ni(Dtdtz) 3; they are all S = 1 pseudo-octahedral systems. Although diamines such as ethylenediamine or diethylenetriamine are in principle capable of forming macrocyclic ligands with Dtdk, the products obtained were acyclic. In the case of Ni(Dtidak)2+, a keto-group and a primary amine residue co-exist within the cation, entailing an unusual example of a complex with a non-conjugated ketone coordinated to nickel(II). The coordination spheres of all four complexes have parallel N2S2X2 donor sets, with the ligands similarly folded. The properties of Ni(Dtdtz) evidence significant contribution from the imino-thiolate resonance form of the thioamide moiety. One consequence of this is the relative facility of oxidation of Ni(Dtdtz) to the nickel(III) form, at +0.24 V vs. SCE. © The Royal Society of Chemistry 2000

The 1,8-bis(2′-pyridyl)-3,6-dithiaoctane Complex of Nickel(II): X-ray Crystal Structure and Borohydride Adduct Formation

The quadridentate dipyridyl-dithioether ligand 1,8-bis(2′-pyridyl)-3,6-dithiaoctane (Pdto) forms a pseudooctahedral complex with nickel(II). Blue [Ni(Pdto)(OH2)2](ClO4)2 crystallizes in the space group P21/c, with a= 11.677(5), b= 13,255(2), c= 15.804(4) Å, β= 107.45(3)° and Z=4. The ligand is folded about the Ni(II) ion so that the water ligands are cis within an O2S2 plane and the pyridines mutually trans. Reduction by sodium amalgam yields a nickel (I) complex with an axial EPR spectrum, whereas borohydride reduction is very slow. Indeed, the pink adduct [Ni(Pdto)(BH4)]+ has substantial stability in solution. © 1998 Elsevier Science S.A. All rights reserved

Nickel(II), Nickel(I), and Nickel(O) Complexes with 1,8-Bis(2′-pyridyl)-3,6-dithiaoctane

Nickel complexes with 1,8-bis(2′-pyridyl)-3,6-dithiaoctane (Pdto) are synthesized; Ni(Pdto)(H 2O) 2(ClO 4) 2 is studied by X-ray diffraction

Assembly of Dinuclear Cu II Rigid Blocks by Bridging Azido or Poly(thiocyanato)chromates: Synthesis, Structures and Magnetic Properties of Coordination Polymers and Polynuclear Complexes

International audienceReaction of a dinuclear cationic copper(II) complex of 4,4′-[2-(3-hydroxyiminobutyl)imino]biphenyl [CuII2(LH)2]2+ with N3- resulted in the formation of a dinuclear azido [CuII2(LH)2(N3)2(H2O)2] complex or a 2D coordination polymer [CuII2(LH)2(N3)2]n. Reaction of the dinuclear complex with [CrIII(NCS)6]3- or [CrIII(NCS)4(NH3)2]- produced a 2D polymer {[CuII2(LH)2(CH3CN)2]3[CrIII(NCS)6]2}n or a 1D chain, constructed from tetranuclear units {[CuII2(LH)2][CrIII(NCS)4(NH3)2]2}n. Structures of the compounds were determined by X-ray crystallography and complexes were characterised by the temperature dependency of the magnetic susceptibility and by ESR spectroscopy. Magnetic properties of homometallic compounds were fit with the model of a dimer with the Hamiltonian Ĥ = -JŜ1*Ŝ2. For heterometallic complexes χMT curves were fit as the superposition of magnetism resulting from both [CuII2(LH)2]2+ and the adjacent CrIII-containing anion. J values for the complexes lie in the range from -12.74(4) to -17.77(8) cm-1. It was shown that the 4,4′-biphenyl bridge efficiently mediates exchange interactions

Antiferromagnetic ordering in cobalt(II) and nickel(II) 1D coordination polymers with the dithioamide of 1,3-benzenedicarboxylic acid

International audienceA series of 1D coordination polymers [Co(m-dtab)Cl2]n (1), [Co(m-dtab)Br2]n (2) and [Ni(m-dtab)2(Br)2]n (3), where m-dtab = the dithioamide of 1,3-benzenedicarboxylic acid, were prepared. The structures of all complexes were determined by X-ray diffraction . Magnetic properties of the compounds were characterized by molecular susceptibility vs. T dependence in the temperature range from 2 to 300 K. All compounds possess antiferromagnetic exchange interactions, and antiferromagnetic ordering was found in [Co(m-dtab)Br2]n and [Ni(m-dtab)2Br2]n at TN = 2.9 K and 2.6 K, respectively. DFT calculations showed that exchange interactions in [Co(m-dtab)(Hal)2]n could be transferred through two pathways: m-dtab between metal ions or interchain π-π stacking of aromatic rings, so the systems are not 1D from the viewpoint of magnetochemistry. The results of DFT calculations are consistent with the existence of magnetic ordering