Wyszukiwarka
Filtry
wszystkich: 4289
-
Katalog
- Publikacje 1826 wyników po odfiltrowaniu
- Czasopisma 1 wyników po odfiltrowaniu
- Osoby 93 wyników po odfiltrowaniu
- Wynalazki 6 wyników po odfiltrowaniu
- Projekty 3 wyników po odfiltrowaniu
- Laboratoria 5 wyników po odfiltrowaniu
- Zespoły Badawcze 7 wyników po odfiltrowaniu
- Aparatura Badawcza 39 wyników po odfiltrowaniu
- Kursy Online 348 wyników po odfiltrowaniu
- Wydarzenia 10 wyników po odfiltrowaniu
- Dane Badawcze 1951 wyników po odfiltrowaniu
wyświetlamy 1000 najlepszych wyników Pomoc
Wyniki wyszukiwania dla: N-NITROZO-2,4-DIARYLO-3-AZABICYKLO[331]NONANY
-
Dielectric Properties of BiNbO<sub>4</sub>-Based Ceramic-Polymer Composites with 0-3 Connectivity
PublikacjaIn the present study two-phase BiNbO4//PVDF composites with 0-3 connectivity were studied by impedance spectroscopy within the frequency range Δν=100Hz-1MHz at room temperature. Polyvinylidene fluoride (PVDF) acted as a matrix whereas bismuth niobate (BiNbO4) powder acted as a dispersed phase. The volume fraction of the ceramic phase was cV=2, 4, 6, 8, 10, 16 and 20vol%. Analysis of the impedance data registered for composites...
-
Magdalena Gajewska prof. dr hab. inż.
OsobyMagdalena Gajewska (ur. 1.06.1968 r. w Gdańsku) ukończyła studia w 1993 roku na Wydziale Hydrotechniki Politechniki Gdańskiej. Jest adiunktem w Katedrze Technologii Wody i Ścieków na Wydziale Inżynierii Lądowej i Środowiska Politechniki Gdańskiej. Doktorat (2001) i habilitacja (2013) w dyscyplinie inżynierii środowiska. W kadencji 2016–2020 pełni funkcję prodziekana ds. nauki. Specjalizuję się w technologiach związanych z ekoinżynierią:...
-
Crystallographic study of self-organization in the solid state including quasi-aromatic pseudo-ring stacking interactions in 1-benzoyl-3-(3,4-dimethoxyphenyl)thiourea and 1-benzoyl-3-(2-hydroxypropyl)thiourea
Publikacja1-Benzoylthioureas contain both carbonyl and thiocarbonyl functional groups and are of interest for their biological activity, metal coordination ability and involvement in hydrogen-bond formation. Two novel 1-benzoylthiourea derivatives, namely 1-benzoyl-3-(3,4-dimethoxyphenyl)thiourea, C₁₆H₁₆N₂O₃S, (I), and 1-benzoyl-3-(2-hydroxypropyl)thiourea, C₁₁H₁₄N₂O₂S, (II), have been synthesized and characterized. Compound (I) crystallizes...
-
Rearrangeable clos networks C(n,r_1,n^2-1,n,r_2) with certain restrictions for connections
PublikacjaW pracy została zaproponowana nowa metoda sprawdzania przestrajalności pól Closa dla połączeń jeden do wiele. W rozważaniach zakładamy grupowanie połączeń.In the article we will propose new method of checking rearrangeability of multicast Clos networks. In the literature there is no precise method for checking rearrangeability. We focused on three-stage Clos networks without any constraints about fan-out capability. We show the...
-
Lower rim substituted tert-butylcalix[4]arenes (Part VI). Synthesis and ionophoric properties of 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrakis(3-diethoxyphosphorylpropoxy)calix[4]arene.
PublikacjaSyntezowano nowy związek: 5,11,17,23-tetra-tert-butylo-25,26,27,28-tetrakis(3-dietoksyfosforylopropoksy)kaliks[4]aren i badano jego właściwości kompleksujące w membranowych elektrodach jonoselektywnych. Związek wykazuje selektywność na jony wapnia oraz na kationy litu. Wyznaczono stałe tworzenia kompleksów z wymienionymi jonami w membranie elektrody.
-
(2-Ethylimidazole-κN)bis(tri-tert-butoxysilanethiolato-κ2O,S)zinc(II) propan-2-ol solvate
PublikacjaW publikowanym związku [Zn(C12H27O3SSi)2(C5H8N2)]*C3H8O, atom Zn(II) jest koordynowany przez atom azotu 2-etyloimidazolu, dwa atomy siarki i dwa atomy tlenu pochodzące od reszt tri-tert-butoksysilanotiolanowych, a geometria na atomie cynku(II) jest typu trygonalnej bipiramidy. Grupa hydroksylowa cząsteczki rozpuszczalnika 2-propanolu tworzy dwa wiązania wodorowe typu N-H - O i O-H - S z sąsiednią czasteczkĄ kompleksu, przez co...
-
The homometallic warwickite V 2 OBO 3
PublikacjaThe synthesis, structure and elementary magnetic characterization of the homometallic warwickite V2OBO3 are reported. The material adopts the orthorhombic warwickite structure type at room temperature, space group Pnma (No. 62) with lattice parameters a = 9.2317(1) Å, b = 3.1172(1) Å, and c = 9.5313(1) Å. Temperature-dependent magnetic susceptibility, electrical resistivity, and specific heat measurements show anomalies near 35 K,...
-
TRANSPORT POSSIBILITY FOR MPEG-4/AVC- AND MPEG-2-ENCODED VIDEO DATA IN IPTV: A COMPARISON STUDY
PublikacjaIPTV (Television over IP) is a modern service with a great potential to expand. It uses the IP transport platform, that is already in worldwide operation. At the time of writing, two techniques are used to transport the video and audio data of IPTV: MPEG-2 TS and Native RTP. The two techniques quite definitely have an influence on both quality of service (QoS) and quality of experience (QoE). This paper sets out to demonstrate...
-
Novel 2-(2-alkylthiobenzenesulfonyl)-3-(phenylprop-2-ynylideneamino)guanidine derivatives as potent anticancer agents – Synthesis, molecular structure, QSAR studies and metabolic stability
PublikacjaA series of new 2-(2-alkylthiobenzenesulfonyl)-3-(phenylprop-2-ynylideneamino)guanidine derivatives have been synthesized and evaluated in vitro by MTT assays for their antiproliferative activity against cell lines of colon cancer HCT-116, cervical cancer HeLa and breast cancer MCF-7. The obtained results indicated that these compounds display prominent cytotoxic effect. The best anticancer properties have been observed for derivatives...
-
Acid-base properties of 3-[2-(n-quinolinyl)benzoxazol-5-yl]alanine derivatives in the ground and excited state. Experimental and theoretical studies
Publikacja -
Novel 2-(2-arylmethylthio-4-chloro-5-methylbenzenesulfonyl)-1-(1,3,5-triazin-2-ylamino)guanidine derivatives: Inhibition of human carbonic anhydrase cytosolic isozymes I and II and the transmembrane tumor-associated isozymes IX and XII, anticancer activity, and molecular modeling studies
PublikacjaA series of novel 2-(2-arylmethylthio-4-chloro-5-methylbenzenesulfonyl)-1-(6-substituted-4-chloro-1,3,5-triazin-2-ylamino)guanidine derivatives 9–20 have been synthesized by substitution of chlorine atom at the 1,3,5-triazine ring in compounds 5–8 with 3- or 4-aminobenzenesulfonamide and 4-(aminomethyl)benzenesulfonamide hydrochloride. All the synthesized compounds were evaluated for their inhibitory activity toward hCA I, II,...
-
Structural and spectroscopic investigation of new luminescent hybrid materials based on calix[4]arene-tetracarboxylate and Ln 3+ ions (Ln = Gd, Tb or Eu)
PublikacjaLanthanide-calixarene hybrid materials are of particular interest due to the combination of the interesting properties of the ligand cavity-like structure and the luminescent features of lanthanides. The aim of this study was to synthesize and investigate the photophysical properties of Eu3+, Tb3+ and Gd3+ hybrids based on calix[4]arene-tetracarboxylate. The preparation of two structurally different...
-
Dataset of non-isomorphic graphs of the coloring types (K3,Km-e;n), 2<m<7, 1<n<R(K3,Km-e).
Dane BadawczeFor K3 and Km-e graphs, a coloring type (K3,Km-e;n) is such an edge coloring of the full Kn graph, which does not have the K3 subgraph in the first color (representing by no edges in the graph) or the Km-e subgraph in the second color (representing by edges in the graph). Km-e means the full Km graph with one edge removed.The Ramsey number R(K3,Km-e)...
-
Ammine(2-ethylpyridine-κN)bis(tri-tert-butoxysilanethiolato-κS)cobalt(II)
PublikacjaTytułowy związek [Co(C12H27O3SSi)2(C7H9N)(NH3)] został otrzymany w reakcji dimerycznego amoniakalnego tri-tert-butoksysilanotiolanu kobaltu(II) z 2-etylopirydyną. Atom kobaltu w otrzymanym związku jest koordynowany przez dwa atomy siarki, jedną resztę 2-etylopirydyny i jedną cząsteczkę amoniaku. Dzięki specyficznemu przestrzennemu ustawieniu ligandów, dodatkowo tworzy się wiązanie wodorowe wewnątrz cząsteczkowe N-H - S
-
Włodzimierz Przybylski prof. dr inż.
Osoby -
Methyl 3-[(1,1-dioxo-1λ<sup>6</sup>,2-benzothiazol- 3-yl)amino]-5-nitrothiophene-2-carboxylate
PublikacjaTytułowy związek został otrzymany przez nitrowanie odpowiedniej pochodnej tiofenu. Wyznaczono i opisano jego strukturę rentgenowską w ciele stałym. Związek wykazuje pewne właściwości inhibicyjne w stosunku do enzymu ludzkiej elastazy leukocytowej (HLE).
-
Determination of 3-MCPD and 2-MCPD esters in edible oils, fish oils and lipid fractions of margarines available on Polish market
Publikacja3-monochloropropane-1,2-diol (3-MCPD) and 2-monochloropropane-1,3-diol (2-MCPD) are intensively investigated food contaminants, which recently emerged as a serious problem within the discovery of high levels of their fatty acid esters in lipid samples. In order to monitor the concentrations of mentioned toxicants in edible oils and fats, several analytical methods have been developed so far. This paper presents the screening research...
-
Jacek Tejchman prof. dr hab. inż.
Osoby -
FE<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> and Bentonite Use to Reduce COD Indicators in Wastewater Containing Detergents
Publikacja -
Dataset of non-isomorphic graphs of the coloring types (Km,K3-e;n), 4<m<8, 1<n<R(Km,K3-e)
Dane BadawczeFor Km and K3-e graphs, a coloring type (Km,K3-e;n) is such an edge coloring of the full Kn graph, which does not have the Km subgraph in the first color (representing by no edges in the graph) or the K3-e subgraph in the second color (representing by edges in the graph). K3-e means the full Km graph with one edge removed.The Ramsey number R(Km,K3-e)...
-
Structure, Physicochemical and Biological Properties of an Aqua (2,2′,2′′-Nitrilotriacetato)-oxidovanadium(IV) Salt with 4-Methylpyridinium Cation
PublikacjaThe crystal structure of a nitrilotriacetate (nta) oxidovanadi-um(IV) salt with 4-methylpyridinium cation, [4-Me(Py)H]+, of [4-Me(Py)H][VO(nta)(H2O)] stoichiometry was determined. The com-plex comprises a discrete mononuclear [VO(nta)(H2O)]–coordinationentity that can be rarely found among other known compounds con-taining nitrilotriacetate oxidovanadium(IV) moieties. The complex wascharacterized by spectroscopic (IR and EPR) methods,...
-
Exploring thiophene-2-acetate and thiophene-3-acetate binding modes towards the molecular and supramolecular structures and photoluminescence properties of Pb(ii) polymers
PublikacjaTo evaluate the impact of the flexible positional isomeric ligands thiophene-2-acetate (2tpacCOO) andthiophene-3-acetate (3tpacCOO) on the construction and self-assembly process of Pb(II) polymers, twonovel compounds, [Pb(2tpacCOO)2(H2O)]n(1) and [Pb(3tpacCOO)2]n(2), were preparedviaanonhydro-thermal method with respect to green chemistry rules. The obtained polymers were fully characterized byelemental analysis, TG/DTG and PXRD,...
-
High-symmetry compact structures are preferred equilibrium configurations of Li n F n+1 − ( n = 2–5) superhalogen anions
Publikacja -
Etazene (N,N-diethyl-2-{[(4-ethoxyphenyl)methyl]-1H-benzimidazol-1-yl}-ethan-1-amine (dihydrochloride)): a novel benzimidazole opioid NPS identified in seized material: crystal structure and spectroscopic characterization
Publikacja -
Dataset of non-isomorphic graphs of the coloring types (K4,Km-e;n), 2<m<5, 1<n<R(K4,Km-e)
Dane BadawczeFor K4 and Km-e graphs, a coloring type (K4,Km-e;n) is such an edge coloring of the full Kn graph, which does not have the K4 subgraph in the first color (representing by no edges in the graph) or the Km-e subgraph in the second color (representing by edges in the graph). Km-e means the full Km graph with one edge removed.The Ramsey number R(K4,Km-e)...
-
The acid strength of the HClO4/n(AlF3) and HClO4/n(SbF5) (n = 1–3) Lewis–Brønsted superacids containing the excess of the Lewis acid component
Publikacja -
Dataset of non-isomorphic graphs being coloring types (K3-e,Km-e;n), 2<m<8, 1<n<R(K3-e,Km-e)
Dane BadawczeFor K3-e and Km-e graphs, the type coloring (K3-e,Km-e;n) is such an edge coloring of the full Kn graph, which does not have the K3-e subgraph in the first color (no edge in the graph) or the Km-e subgraph in the second color (exists edge in the graph). Km-e means the full Km graph with one edge removed.The Ramsey number R(K3-e,Km-e) is the smallest...
-
Dissociative Electron Attachment to 5-Iodo-4-thio-2′-deoxyuridine: A Potential Radiosensitizer of Hypoxic Cells
PublikacjaIn the search for effective radiosensitizers for tumor cells, halogenated uracils have attracted more attention due to their large cross section for dissociation upon the attachment of low-energy electrons. In this study, we investigated dissociative electron attachment (DEA) to 5-iodo-4-thio-2'-deoxyuridine, a potential radiosensitizer using a crossed electron-molecule beam experiment coupled with quadrupole mass spectrometry....
-
Konferencja naukowa Dziedzictwo archiwalne Lublina i Lubelszczyzny. Ludzie, instytucje, dokumentacja, Lublin, 2–3 grudnia 2021 r.
PublikacjaSprawozdanie z konferencji naukowej pt. Dziedzictwo archiwalne Lublina i Lubelszczyzny. Ludzie, instytucje, dokumentacja, Lublin, 2–3 grudnia 2021 r.
-
The existence and gas phase acidity of the HAlnF3n+1 superacids (n=1–4)
Publikacja -
Generation and stability of N-phenacyl-4-R-pyridinium ylides in silicon polypodands
Publikacja -
Influence of geosmin, dimethyl trisulfide, 2- and 3-methylbutan-1-ol on raw spirits quality
PublikacjaJakość napojów alkoholowych jest bardzo istotna dla konsumentów. Destylarnie, chcąc wytwarzać wysokiej jakości trunki, muszą określić, które składniki są odpowiedzialne za nieprzyjemny zapach pogarszając jakość otrzymywanych alkoholi. Głównym celem przeprowadzonych badań było określenie profili zapachowych próbek destylatów rolniczych różniących się jakością organoleptyczną oraz wskazanie tych składników, których obecność może...
-
<i>N,N,N</i>-Trimethyl-N-(methyl 5-deoxy-2,3-<i>O</i>-isopropylidene-β-D-ribofuranosid-5- yl)ammonium 4-methylbenzenesulfonate sesquihydrate.
PublikacjaThe structure of the title compound, [C12H24NO4][C7H7O3S]·1.5H2O, contains alternating layers parallel to (001) of hydrophobic and polar character, stabilized by C-H...O hydrogen bonding. The furan ring adopts an envelope conformation with the C(OMe) atom as the flap, and the dioxolane ring is twisted about one of the O-C(methine) bonds. A comparison to related compounds is presented. The tosylate-O atoms were disordered over two...
-
Sylwester Kaczmarek dr hab. inż.
OsobySylwester Kaczmarek ukończył studia w 1972 roku jako mgr inż. Elektroniki, a doktorat i habilitację uzyskał z technik komutacyjnych i inżynierii ruchu telekomunikacyjnego w 1981 i 1994 roku na Politechnice Gdańskiej. Jego zainteresowania badawcze ukierunkowane są na: sieci IP QoS, sieci GMPLS, sieci SDN, komutację, ruting QoS, inżynierię ruchu telekomunikacyjnego, usługi multimedialne i jakość usług. Aktualnie jego badania skupiają...
-
Molecular Docking-Based Study of Vasopressin Analogues Modified at Positions 2 and 3 with N-Methylphenylalanine: Influence on Receptor-Bound Conformations and Interactions with Vasopressin and Oxytocin Receptors
Publikacja -
Dataset of non-isomorphic graphs being coloring types (K4-e,Km-e;n), 2<m<7, 1<n<R(K4-e,Km-e)
Dane BadawczeFor K4-e and Km-e graphs, the type coloring (K4-e,Km-e;n) is such an edge coloring of the full Kn graph, which does not have the K4-e subgraph in the first color (no edge in the graph) or the Km-e subgraph in the second color (exists edge in the graph). Km-e means the full Km graph with one edge removed.The Ramsey number R(K4-e,Km-e) is the smallest...
-
Pressure evolution of luminescence in Sr Ba1−(NbO2)3:Pr3+ (x=1/2 and 1/3)
Publikacja -
Acetylated adipate of retrograded starch as RS 3/4 type resistant starch
Publikacja -
Serum neurotrophin-3 and neurotrophin-4 levels are associated with asthma severity in children
Publikacja -
Application of the distributed transfer function method and the rigid finite element method for modelling of 2-D and 3-D systems
PublikacjaIn the paper application of the Distributed Transfer Function Method and the Rigid Finite Element Method for modelling of 2-D and 3-D systems is presented. In this method an elastic body is divided into 1-D distributed parameter elements (strips or prisms). The whole body (divided into strips or prism) is described by a set of coupled partial differential equations. Solving this equations in the state space form it is possible...
-
Określenie przyczyny uszkodzenia kolana rurociągu 3/4''-025-P79 na instalacji produkcji wodoru w Grupie Lotos SA
PublikacjaNiniejszą pracę wykonano na zlecenie Grupy Lotos SA, nr OK/78/2010 z dnia 01 lutego 2010 r. Celem pracy było ustalenie przyczyny uszkodzenia kolana rurociągu 3/4"-025-P79 gat. P22 ASTM SA-335 na instalacji produkcji wodoru 250 w Grupie Lotos SA. Wykazano, że główną przyczyną powstania pęknięcia była niewłaściwa technologia wykonania elementu, skutkująca obecnością ostrych karbów na powierzchni wewnętrznej i podwyższoną twardością...
-
New imidazoline/alpha2-adrenoceptors affecting compounds - 4(5)-(2-aminoethyl)imidazoline (dihydrohistamine) derivatives. synthesis and receptor affinity studies
Publikacjapołączenie struktury agmatyny i imidazoliny pozwoliło na otrzymanie nowej grupy ligandów receptorów imidazolinowych i alfa2-adrenergicznych, pochodnych 4(5)-(2-aminoetylo)imidazoliny. otrzymano oraz zbadano oddziaływanie nowych pochodnycch jak i analogów znanych ligandów - klonidyny, rilmenidyny, idazoksanu i antazoliny w stosunku do receptorów imidazolinowych oraz alfa2-adrenergicznych.
-
In silico assessment and sonochemical synthesis of 2-alkynyl 3-chloropyrazines as prospective ligands for SARS-CoV-2
Publikacja -
Thermodynamic study of binary mixtures of 2-propanol with ionic liquids, 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium trifluoromethanesulfonate and triethylhexylammonium bis(trifluoromethylsulfonyl)imide
PublikacjaIn this work, densities, speeds of sound, refractive indices and viscosities of three binary mixtures containing the ionic liquids 1-hexyl-3-methylimidazolium bis(trifluoromethyl-sulfonyl)imide, 1-hexyl-3-methylimidazolium trifluoromethanesulfonate and triethylhexyl-ammonium bis(trifluoromethylsulfonyl)imide, mixed with 2-propanol at wide temperature and composition ranges at atmospheric pressure have been measured. From these...
-
Dataset of non-isomorphic graphs being coloring types (K5-e,Km-e;n), 2<m<5, 1<n<R(K5-e,Km-e)
Dane BadawczeFor K5-e and Km-e graphs, the type coloring (K5-e,Km-e;n) is such an edge coloring of the full Kn graph, which does not have the K5-e subgraph in the first color (no edge in the graph) or the Km-e subgraph in the second color (exists edge in the graph). Km-e means the full Km graph with one edge removed.The Ramsey number R(K5-e,Km-e) is the smallest...
-
Dataset of non-isomorphic graphs being coloring types (K6-e,Km-e;n), 2<m<5, 1<n<R(K6-e,Km-e)
Dane BadawczeFor K6-e and Km-e graphs, the type coloring (K6-e,Km-e;n) is such an edge coloring of the full Kn graph, which does not have the K6-e subgraph in the first color (no edge in the graph) or the Km-e subgraph in the second color (exists edge in the graph). Km-e means the full Km graph with one edge removed. The Ramsey number R(K6-e,Km-e) is the smallest...
-
1,3-Alternate 25,27-dibenzoiloxy-26,28-bis-[3-propyloxy]-calix[4]arene-bonded silica gel as a new type of HPLC stationary phase
PublikacjaZsyntezowano nową fazę stacjonarną na bazie 25,27-dibenzoiloksy-26,28-bis[3-propyloksy]-kaliks[4]arenu w konformacji 1,3-naprzemianległej, chemicznie związaną z żelem krzemionkowym. Przeprowadzono badanie selektywności i sprawności tej fazy w rozdzielaniu: izomerów pozycyjnych benzenu, zasad purynowych i pirymidynowych oraz niesterydowych leków przeciwzapalnych. Zaprezentowano wyniki badania wpływu warunków chromatograficznych...
-
Laser stimulated third harmonic generation studies in ZnO–Ta 2 O 5 –B 2 O 3 glass ceramics entrenched with Zn 3 Ta 2 O 8 crystal phases
Publikacja -
Molecular basis of lipopolysaccharide heterogeneity in Escherichia coli: envelope stress-responsive regulators control the incorporation of glycoforms with a third 3-deoxy-α-D-manno-oct-2-ulosonic acid and rhamnose.
PublikacjaMass spectrometric analyses of lipopolysaccharide (LPS) from isogenic Escherichia coli strains with nonpolar mutations in the waa locus or overexpression of their cognate genes revealed that waaZ and waaS are the structural genes required for the incorporation of the third 3-deoxy-α-D-manno-oct-2-ulosonic acid (Kdo) linked to Kdo disaccharide and rhamnose, respectively. The incorporation of rhamnose requires prior sequential incorporation...
-
Cross-sections for electron-scattering from 2-methyl-1-buten-3-yne, C 5 H 6 , molecules
PublikacjatCross-sections for electron collisions with the 2-methyl-1-buten-3-yne [H2C C(CH3)C CH] moleculewere measured and calculated. Absolute grand-total electron-scattering cross-section (TCS) was takenat impact energies from 0.6 to 300 eV in the linear electron-transmission experiment. The TCS energydependence for the electron–C5H6collision has two prominent enhancements separated with a deepminimum located near 1.8 eV. In addition,...