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Wyświetlanie 1-9 z 9
Tytuł:
Cykliczne tia- i oksatiaetery o prostej budowie chemicznej
Cyclic thia-and oxathiaethers with simple chemical structure
Autorzy:
Kuś, Piotr
Hellwig, Hubert
Powiązania:
https://bibliotekanauki.pl/articles/1409942.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
tiaetery koronowe
oksatiaetery koronowe
thia-crown-ethers
oxathia-crown-ethers
Opis:
Cyclic thiaethers and oxathiaethers, more often found in the chemical literature as sulfur or sulfur-oxygen analogs of crown ethers (and appearing most often under such names), are an interesting group of organic compounds with large complexing potential, and hence - their application possibilities. However, they are not common research object. This may be due to the fact that many of these compounds are obtained with rather low yields, and moreover, compounds with harmful and dangerous effects on living organisms are sometimes used in their synthesis. Methylene-sulfur cyclic derivatives were very often obtained as random products on the occasion of the preparation of other compounds. Similarly, their complexes have not been presented in large numbers in the chemical literature. The next two groups of compounds: ethylene-sulfur and ethylene-oxysulfur cyclic derivatives are much more frequent and more numerous in the literature. This may be due to the fact that these compounds are similar in structure to the very well-known oxygen crown ethers. All the compounds discussed here have potential possibility and form complexes with a wide variety of metal ions - from alkali to lanthanoid ions. They also form bimetallic complexes, as well as the so-called coordination polymers. The type of complex formed and the central ion with which the complex is formed depends on the type of ligand used for its synthesis. The article presents the current state of knowledge about these dependencies. Attempts to use complexes of these compounds in microelectronics, phototherapy or photodiagnostics, photography and solid phase separation of ions were also presented.
Źródło:
Wiadomości Chemiczne; 2021, 75, 5-6; 653-674
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photodynamic effects of two water soluble porphyrins evaluated on human malignant melanoma cells in vitro.
Autorzy:
Szurko, Agnieszka
Krämer-Marek, Gabriela
Wideł, Maria
Ratuszna, Alicja
Habdas, Jan
Kuś, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1043409.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
malignant melanoma
tumour megacolonies in vitro
necrosis
photodynamic therapy
synthetic porphyrins
apoptosis
Opis:
Two water soluble porphyrins: meso-tetra-4-N-methylpyridyl-porphyrin iodide (P1) and 5,10-di-(4-acetamidophenyl)-15,20-di-(4-N-methylpyridyl) porphyrin (P2) were synthesised and evaluated in respect to their photochemical and photophysical properties as well as biological activity. Cytotoxic and phototoxic effects were evaluated in human malignant melanoma Me45 line using clonogenic assay, cytological study of micronuclei, apoptosis and necrosis frequency and inhibition of growth of megacolonies. Both porphyrins were characterised by high UV and low visible light absorptions. Dark toxicity measured on the basis of the clonogenic assay and inhibition of megacolony growth area indicated that P1 was non-toxic at concentrations up to 50 μg/ml (42.14 μM) and P2 at concentrations up to 20 μg/ml (16.86 μM). The photodynamic effect induced by red light above 630 nm indicated that both porphyrins were able to inhibit growth of melanoma megacolonies at non-toxic concentrations. Cytologic examination showed that the predominant mode of cell death was necrosis.
Źródło:
Acta Biochimica Polonica; 2003, 50, 4; 1165-1174
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Procedury celne w prawie celnym Unii Europejskiej
Autorzy:
Kuś, Artur
Witkowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1361375.pdf
Data publikacji:
2019-03-30
Wydawca:
Uczelnia Łazarskiego. Oficyna Wydawnicza
Tematy:
customs procedures
procedures for changing the customs status of goods
special
procedures
customs law of the European Union
procedury celne
procedury zmiany statusu celnego towaru
procedury specjalne
prawo celne Unii Europejskiej
Opis:
W artykule dokonano analizy obowiązujących w Unii Europejskiej procedur celnych. Zdaniem Autorów, unijne procedury celne stanowią kompletną i przejrzystą podstawę prawną dla współpracy unijnych przedsiębiorców z ich kontrahentami z państw trzecich. Pomimo generalnie pozytywnej oceny uregulowań prawnych w tym zakresie, wskazane zostały mankamenty przyjętych rozwiązań. Dotyczy to zwłaszcza przyjętego stanu prawnego w zakresie specjalnych procedur celnych szczególnego przeznaczenia i przetwarzania.
The article analyzes the customs procedures in force in the European Union. According to the Authors, EU customs procedures constitute a complete and transparent legal basis for the cooperation of EU entrepreneurs with their counterparties from third countries. Despite generally positive evaluation of legal regulations in this area, shortcomings of the adopted solutions were indicated. This particularly applies to the adopted legal status regarding special customs procedures for special purposes and processing.
Źródło:
Ius Novum; 2019, 13, 1; 132-154
1897-5577
Pojawia się w:
Ius Novum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of olanzapine and aripiprazole on spatial memory of female rats exposed to stress in the perinatal period
Autorzy:
Kus, Krzysztof
Ratajczak, Piotr
Zaprutko, Tomasz
Kopciuch, Dorota
Paczkowska, Anna
Nowakowska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/895623.pdf
Data publikacji:
2019-10-30
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
olanzapine
aripiprazole
Prenatal stress
female rats
variation in sexes
Opis:
Cognitive functions, such as learning and memory, are instrumental in improving the patient’s quality of life. Commonly used antipsychotic drugs are also useful in depression treatment, and have a positive effect on spatial memory dysfunction caused by schizophrenia. Olanzapine (OLA) and aripiprazole (ARI) are known to have substantially different pharmacokinetics depending on sex, thus their therapeutic efficacy and dose of treatment may be different for males and females. The aim of the study was to assess whether dysfunction of spatial memory (Morris Water Maze - MWM) and locomotor activity (LA) improve in prenatally stressed rats (animal model of schizophrenia (AMS)) by OLA and ARI. OLA (0.5 mg/kg ip) and ARI (1.5 mg/kg ip) were administered to female Wistar rats (non-stressed control group (NSCG) and PSG). Single administration of ARI and OLA in the NSCG yielded no differences in spatial memory compared to the control group (C-NSCG), while OLA improved memory after 7 days of treatment compared to the C-NSCG. In the prenatally stressed group (PSG), an impairment of spatial memory by the drug was observed (vs. C-NSCG) after long-term treatment. Only chronic administration of ARI and OLA (PSG) improved spatial memory in female rats. Conclusion: Stress causes memory dysfunction in female rats. Chronic administration of ARI and OLA reverses this effect which can probably be associated with the mechanism of action of the drugs used (ARI/OLA). ARI acts as an agonist or antagonist mainly on D2 and 5-HT2A receptors, while OLA induces antagonist effects for these receptors.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 5; 885-893
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geotermia w Polsce : rozwój stymulowany przez środki subfunduszu geologicznego Narodowego Funduszu Ochrony Środowiska i Gospodarki Wodnej
Geothermal energyin Poland : development stimulated by the geological subfund of the National Fund for Environmental Protection and Water Management
Autorzy:
Dziadzio, Piotr S.
Maj, Jolanta
Jerzak, Magdalena
Ofiara, Katarzyna
Bąk, Dominik
Kuś, Beata
Powiązania:
https://bibliotekanauki.pl/articles/2076107.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
energia geotermalna
woda termalna
subfundusz geologiczny
Narodowy Fundusz Ochrony Środowiska i Gospodarki Wodnej
minister środowiska
projekty geotermalne
geothermal energy
thermal water
geological subfund
National Fund for Environmental Protection and Water Management
minister for the environment
geothermal projects
Opis:
The paper presents results of evaluation of geothermal projects submitted in 2016-2018 within the priority program entitled Geology and mining, part 1 - "Understanding the geological structure of the country and the management of mineral and groundwater resources” implemented from the financial resources of the National Fund for Environmental Protection and Water Management. The paper also describes the present-day stage of geothermal projects financed by the fund and the assumptions of a new priority program that is currently being implemented in order to develop geothermal heating in Poland.
Źródło:
Przegląd Geologiczny; 2020, 68, 3; 151--155
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
THE PRESCRIPTION TO OVER-THE-COUNTER SWITCHES AND DOUBLE REGISTRATION OF MEDICINES - THE PERSPECTIVE OF PHARMACISTS FROM THE GREATER POLAND.
Autorzy:
Zaprutko, Tomasz
Kopciuch, Dorota
Ratajczak, Piotr
Paczkowska, Anna
Adamczak, Olga
Kus, Krzysztof
Nowakowska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/895258.pdf
Data publikacji:
2019-10-30
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
pharmaceutical market
pharmacies
Rx-to-OTC switches
double registration
Opis:
The prescription to over-the-counter switch is a global occurrence. However, the switch phenomenon might be considered controversial. Nevertheless, the further development of switches seems to be inevitable, thus we collected pharmacists’ opinions about Rx-to-OTC switches including double registration of medicines. The study was conducted in pharmacies from the Greater Poland, using an anonymous questionnaire, which was delivered by direct contact. Finally, answers from 232 pharmacies were included in the study. Moreover, we analyzed data from 5500 Polish pharmacies, concerning the turnover of selected and doubly registered medicines. Rx-to-OTC switches were negatively evaluated by the majority (81.5%) of respondents. “Furaginum” was the most frequently chosen (60.8%) substance, which according to obtained answers should be available only on prescription. Study participants claimed that the most important drawback (chosen by 44.4% participants) of the double registration of medicines is the development of uncontrolled self-medication. Data obtained from a market research company revealed that the Rx-to-OTC switch may lead to the market share growth of OTC class (e.g. “furaginum”), but it is not the rule (e.g. “omeprazole/pantoprazole”). Although Rx-to-OTC switches are considered somewhat controversial, the switch, as well as double registration phenomenon, seems to be a subject of further development. However, in pharmacists opinion substances like “furaginum” should be available as an Rx-only brand instead of double registered medicine. In the case of Rx-to-OTC switches, additional information about possible side effects and/or interactions should be provided to the patients who might inappropriately use medicines.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 5; 907-912
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Programy wsparcia rozwoju geotermii w Polsce oraz ich dotychczasowe efekty
Geothermal development support programs in Poland and their effects
Autorzy:
Dziadzio, Piotr
Maj, Jolanta
Ofiara, Katarzyna
Jerzak, Magdalena
Kamionka, Dawid
Bąk, Dominik
Roliński, Jarosław
Kuś, Beata
Powiązania:
https://bibliotekanauki.pl/articles/2076231.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
energia geotermalna
woda termalna
subfundusz geologiczny
Narodowy Fundusz Ochrony Środowiska i Gospodarki Wodnej
minister do spraw środowiska
projekty geotermalne
geothermal energy
thermal water
geological subfund
National Fund for Environmental Protection and Water Management
minister responsible for the environment
geothermal projects
Opis:
The article presents the results of the evaluation of application for funding the geothermal projects submitted in the first call for proposals under the priority program “Accessing thermal waters in Poland”. The article also describes the current stage of geothermal projects financed from the fund in previous years and the key assumptions of the government regarding the development of knowledge about geothermal conditions in Poland.
Źródło:
Przegląd Geologiczny; 2021, 69, 9; 549--558
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

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