Wyniki wyszukiwania - Biblioteka Nauki

1

Plankton larvae of invertebrates as an indicator of potential capacity for regeneration of bottom filtrator communities in the Gulf of Gdańsk

100%

Wolska-Pyś M.

Oceanological Studies

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1998

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tom Vol. 27, No. 4

93-103

EN

In autumn 1994 and summer 1995, the occurrence of larvae of bottom invertebrates was investigated in the coastal waters of the Gulf of Gdańsk. The determined abundance of larval stages of molluscs and barnacles suggested that in spite of pollution of the environment the biofiltrator communities in the Gulf have a great potential for regeneration and development. Several areas with potentially best conditions for growth, characterised by highest quantities of the larvae, and especially by a high percentage of large larvae just before their transformation into settled forms, were selected. Biotechnical measures to increase the rates of growth and to facilitate processes of self-purification in the water body are proposed.

2

Layered Double Hydroxide/Chitosan Composite (Mg-Al/CT) as a Selective Adsorbent in Congo Red Adsorption from Aqueous Solution

100%

Mohadi R. , Siregar P. M. S. B. N. , Palapa N. R. , Taher T. , Lesbani A.

Ecological Engineering & Environmental Technology

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2022

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tom Vol. 23, iss. 2

144--152

EN

Layered double hydroxide (LDH) can be used as an adsorbent to remove pollutants from aqueous solutions, but it drawbacks where the structure is easily damaged so that it cannot be reused in the adsorption process and has a low adsorption capacity. This can be overcome through the development of layered double hydroxide material composited with chitosan support material. In addition to untilizing waste, chitosan is selected as supporting material in the layered double hydroxide modification process, because it is cheap, has high selectivity, and is biodegradable. In this study, the adsorbent was applied in the process of removing Congo Red (CR). The LDH modification process using chitosan was successfully carried out, as seen from XRD analysis which resembled the base material (Mg-Al) and support (CT), the BET analysis which showed an increase in surface area, as well as from the large adsorption capacity value and the regeneration process which tends to be stable after compositing is done.

3

Cardiovascular system adaptability to exercise according to morphological, temporal, spectral and correlation analysis of oscillograms

100%

Viktorovych Vakulenko D. , Petrovych Martseniuk V. , Oleksiyvna Vakulenko L. , Romanovych Selskyy R. S. , Kutakova O. , Gevko O. , Kadobnyj T.

Family Medicine & Primary Care Review

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2019

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nr 3

253-263

XX

Background. Diseases of the cardiovascular system (CVS) are among the most common diseases of humankind (WHO). Monitoring of blood pressure (BP) is an accessible method for evaluating global hemodynamic processes. The functional reserves of the circulatory system are traditionally determined by the use of functional loading trials and tests. Objectives. The aim of the study is to enhance the information collected during the blood pressure measurement process by studying the levels of adaptation of the CVS to physical activity with morphological, temporal, spectral and correlation analyses of arterial oscillography (AO). Material and methods. In 178 healthy individuals aged 18–20 years, arterial oscillograms were recorded during blood pressure measurement and correlations of the functional reserve of the cardiovascular system at various stages of adaptation to a Ruffier test were investigated. Results. The proposed methods of AO analysis significantly increase the informativeness of the procedure for blood pressure measurement, provide an opportunity to conduct a visual analysis of AOs and to assess the state of the cardiovascular system, its reserve capabilities and its ways of adapting to shoulder compression at rest, after physical load and in the process of recovery. Conclusions. Using the information technologies proposed by the authors of the morphological, temporal, spectral and correlation analysis of arterial oscillograms, their evaluation and clinical interpretation significantly increase the informativeness of the blood pressure measuring process. They can be used for early detection of pre-morbid conditions and functional blood circulation reserves, which will help the physician to more effectively plan a preventative, diagnostic and therapeutic process.

4

Scaffolds: an attractive concept towards tissue regeneration

100%

Vandenhaute M. , Gevaert E. , Cornelissen R. , Verfaillie C. , Dubruel P.

Engineering of Biomaterials

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2012

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tom Vol. 15, no. 116-117 spec. iss.

124--125

5

Macroscopic description of the extracted alveolar socket healing implanted with «Byossital - 11» and «Kafam» in experiment

100%

Chudakov O. P. , Petchurskiy A. I. , Pohodenko-Chudakova I. O.

Engineering of Biomaterials

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2010

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tom Vol. 13, no. 99-101

8--9

6

The properties of regenerative polymer mass

100%

Rudawska A. , Wierzchowski A. , Müller M. , Petrů J. , Náprstková N.

Advances in Science and Technology. Research Journal

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2017

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tom Vol. 11, no 3

130--138

EN

The paper investigates the compression strength of samples of regenerative polymer mass RM 101 Resimetal Metal Repair Pasta manufactured by Rendor. The effect of weather conditions on selected mechanical properties of the tested mass is examined. The samples are subjected to seasoning at room temperature, in an environmental chamber, and in a thermal shock chamber. The samples for strength testing are made according to the adopted method. It has been observed that the samples seasoned at room temperature have the lowest strength, while the highest strength is exhibited by the samples subjected to seasoning in an environmental chamber at a temperature of 70°C and humidity of 95%. In addition, the paper compares the strength properties of regenerative polymer masses manufactured by Chester Molecular, Belzona, and Unirep, as well as of the widely used epoxy compound Epidian 57 mixed with the Z-1 curing agent with those of the Rendor mass. The properties of the above masses are obtained from the available literature.

7

Graphene-based substrates influence biological and functional properties of human umbilical cord-derived mesenchymal stem cells

100%

Sekuła M. , Karnas E. , Jagiełło J. , Noga S. , Adamczyk E. , Dżwigońska M. , Kmiotek K. , Baran M. , Madeja Z. , Lipińska L. , Zuba-Surma E.

Engineering of Biomaterials

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2016

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tom Vol. 19, no. 138 spec. iss.

24

8

Injectable cell immobilization systems for bone regeneration

100%

Granja P. L. , Evangelista M. B. , Bidarra S. J. , Guerreiro S. , Barrias C. C. , Mooney D. J. , Barbosa M. A.

Engineering of Biomaterials

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2007

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tom Vol. 10, no. 69-72

5-6

EN

Cell immobilization on encapsulation has been extensively investigated with the purpose of to providing immunoisolation but few attempts have been made to use this strategy for tissue regeneration. Our research efforts are currently focused on the functionalization of natural polymers, namely poly-saccharides, to promote their interaction with biological systems. Osteoprogenitor and stem cells were immobilized within alginate microspheres conjugated with oligopeptides including the Arg-Gly-Asp (RGD) sequence. Polymers were further modified to improve their biodegradability. After immobilization and under dynamic cell culture conditions, immobilized cells were viable, proliferated and differentiated. Immobilized cell further synthesized and extracellular matrix and expressed bone phenotypic markers, which indicates the capability of this approach to promote the regeneration of bone tissue. Current efforts are focused on promoting vascularization of bone tissue by using angiogenic factors as well as endothelial cells.

9

Degradable scaffold materials for cartilage regeneration

100%

Pamuła E. , Polok A. , Menaszek E.

Engineering of Biomaterials

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2007

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tom Vol. 10, no. 69-72

3-5

EN

Two scaffolding materials for cartilage regeneration were produced from poly(L-lactide-co-glycolide) (PLG) and PLG modified with sodium hyaluronate (PLG-Hyal). The scaffolds were characterized in terms of their microstructure and surface chemistry. Biological properties of the scaffolds were also evaluated by implantation of the scaffolds into auricular cartilage of the rabbits for 1 and 4 weeks. Histological and histochemical examinations show that both scaffolds promote regeneration of the cartilage, although the quickest regeneration was found after implementation of PLG-Hyal.

10

Heat recovery system in a future diesel particle filter

100%

Mitianiec W.

Journal of KONES

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2009

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tom Vol. 16, No. 4

333-342

EN

The main problem in conventional diesel engines and HCCI diesel is reduction of solid particles emitted to atmosphere. applying of particle filters requires special methods for their regeneration after some period of the engine work in a result of closing of substrate pores by soot. These methods require additional energy for combustion of soot (additional fuel or electric energy). The new method takes into account a self-regeneration of diesel particle filter by use of special heat recovery system. The paper shows an example of DPF self-regeneration. the exhaust temperature behind the turbine and catalytic converter is very low and particularly for HCCI engine the emission of particles is low in comparison to conventional diesel engines. for that case an additional energy is required for increase of gas temperature before DPF. the preliminary studies show a possibility of using the special design of DPF with heat recovery system. the paper shows the simulation results of such system and possibility of increasing the heat recovery ratio by change of geometry of DPF. the gas heat exchange formulas between dpf and the heat exchange module are partly included in the paper. the preliminary results of calculations shows the possibility of increase of exhaust gases in front of DPF about 20%, which enables a continuous regeneration of DPF. the work is carried out as part of the european project ipsy.

11

The influence of incubation media on surface properties of bioglass-polymer composites

100%

Flis A. , Zagrajczuk B. , Dziadek M. , Cholewa-Kowalska K. , Laczka M.

Engineering of Biomaterials

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2018

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tom Vol. 21, no. 148

99

12

Impact of human serum on HAp-glucan composite

100%

Borkowski L. , Lübek T. , Jojczuk M. , Nogalski A. , Belcarz A. , Pałka K. , Hajnos M. , Ginalska G.

Engineering of Biomaterials

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2018

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tom Vol. 21, no. 148

10

13

Usuwanie substancji dezaktywujących z powierzchni zużytego katalizatora węgiel aktywny-Pd

100%

Dąbek L. , Świątkowski A. , Dziaduszek J.

Przemysł Chemiczny

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2007

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tom T. 86, nr 11

1091-1093

14

Methods of experimental models making to study stimulation of regeneration process of mandible bone tissue

100%

Pohodenko-Chudakova I. O.

Inżynieria Biomateriałów

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2004

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tom R. 7, nr 37

11-12

15

Argeting neurons overcoming extra and intracellular barriers with biomaterial-based vectors to promote neuroprotection and neuroregeneration

100%

Pêgo A. P.

Engineering of Biomaterials

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2018

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tom Vol. 21, no. 148

7

16

Assignment of usefulness of physiotherapy applied to sports training in the case of szczecin swimmers

100%

Łubkowska W. , Troszczyński J. , Sieńko-Awierianów E.

Central European Journal of Sport Sciences and Medicine

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2014

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tom 7

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nr 3

37-43

EN

The aim of this article is to make the assessment of physiotherapy use in the case of swimmers’ regeneration. A diagnostic survey was used as the method. Opinions from the author’s survey were considered and there were 30 high-class swimmers analyzed aged 15–27. The research was conducted in 2012 at the Floating Arena swimming pool in Szczecin. 100% of the surveyed swimmers benefit from regeneration after physical effort. The most common physiotherapist treatment in case of swimmers is dry classic massage – 86.7%. The water bath (63.3%), sauna bath (56.7%), whirl bath (53.3%), water jets/Scotch douche (43.3%) and hydro massages (30%) are the most common types of hydrotherapy. On the other hand, ultrasounds and cryotherapy are the least common treatments when choosing adequate types of regeneration, i.e. respectively 13.3% and 3.3%. The biggest amount of massages is performed shortly before start – 40%. Massage in 60% cases lasts 10 minutes. In 90% of the surveyed group partial massage is being applied, whereas only 3.3% of competitors take the overall massage. In case of 80% of the swimmers, massage is regarded as completely relaxing. For 77% of them it relaxes both physically and mentally. In case of 80% of the surveyed, it is regarded as the most efficient form of biological regeneration. 60% of swimmers say it is helpful to maintain readiness to start and to overcome fever (feeling of annoyance) or apathy.

17

Soft Ion Divalent Metals toward Adsorption on Zn/Al-POM Layered Double Hydroxide

100%

Silaen L. , Elfita , Mohadi R. , Normah , Juleanti N. , Palapa N. R. , Lesbani A.

Journal of Ecological Engineering

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2021

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tom Vol. 22, nr 10

109--120

EN

Development of Zn/Al layered double hydroxide by intercalation using polyoxometalate (POM) K4 [α-SiW12O40] to Zn/Al-POM was investigated. The success of the modification is evidenced by the XRD, FT-IR, and BET characterization data. XRD characterization showed an increase in the interlayer distance from 8.59 Å in Zn/Al LDHs to 10.26 Å in Zn/Al-POM. This success is also supported by the FT-IR data with the appearance of vibrations around 779–979 cm-1 which indicates the vibration of the polyoxometalate compound in Zn/Al-POM. Other supporting data in the form of BET also prove an increase in surface area from 1.968 m2/g in Zn/Al LDHs to 14.042 m2/g Zn/Al-POM. The ability of Zn/Al-POM as an adsorbent is proven through several parameters such as kinetics, isotherm, thermodynamics, and regeneration for Cd2+, Pb2+, Ni2+, and Co2+. Adsorption kinetics showed that Zn/Al-POM was more likely to follow the pseudo-second-order adsorption kinetics model for Cd2+, Pb2+, Ni2+, and Co2+. The results of determining the adsorption isotherm parameters of Zn/Al-POM tend to follow the Freundlich isotherm model with a maximum adsorption capacity of 74.13 mg/g on Pb2+. The regeneration process showed that Zn/Al-POM was more resistant than Zn/Al LDHs up to 3 cycles. It was proven that Zn/Al-POM was able to survive in the last cycle up to 69.19% on Ni2+.

18

Mechanizm regeneracji tkanki kostnej po implantacji kompozytu z polimeru resorbowalnego modyfikowanego hydroksyapatytem

100%

Chłopek J. , Morawska-Chochół A. , Rosół P.

Inżynieria Biomateriałów

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2006

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tom R. 9, nr 58-60

98-101

PL

Implanty kompozytowe z kopolimeru resorbowalnego laktydu z glikolidem modyfikowanego nanocząsteczkami hydropksyapatytu oraz implanty z czystego polimeru wszczepiono w kości żuchwy królika. Okresy kontrolne przypadały po 1, 2, 3, 6, 12, 24, 48 tygodniach implantacji. Przeprowadzono obserwację mikroskopową granicy kość-implant wraz z analizą pierwiastków przy użyciu mikroskopu skaningowego (SEM) z przystawką EDS. Zaobserwowano, że po implantacji czystego polimeru udział tkanki łącznej jest większy niż w przypadku PGLA+HAP w całym okresie obserwacji. W przypadku kompozytu widoczne są dwa mechanizmy odbudowy kości, zarówno na cząstkach hydrokysapatytu jak i na wytworzonych włóknach kolagenowych.

EN

Lactide-co-glycolide/nano-hydroxyapatite composite and pure polymer were implanted into the rabbit submaxilla bones. Control periods were determined as 1, 2, 3, 6, 12, 24, 48 weeks after the implantation. Microscopic observations of bone-implant interface, together with elemental analyses, were performed using the scanning electron microscope (SEM) equipped with EDS unit. It was found that the contribution of connective tissue is higher after pure polymer implantation as compared to PGLA+HAP composite. In the case of composite, two mechanisms of bone reconstruction can be observed, both on hydroxyapatite particles as well as on collagen fibres formed.

19

Contribution a l'etude de la regeneration d'appendices chez Gryllus domesticus L. (Orthoptera). II. Etude de la regeneration des pattes

100%

Rosciszewska M. , Urvoy J.

Acta Biologica Cracoviensia. Series Zoologia

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1989

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tom 31

20

Investigating the Possibility of Regenearation by Hardfacing for Forging Tools Based on Analysis of Tool Working Conditions and Wear Evaluationy

100%

Widomski P. , Kaszuba M. , Krawczyk J. , Nowak B. , Lange A. , Sokołowski P. , Gronostajski Z.

Archives of Metallurgy and Materials

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2022

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tom Vol. 67, iss. 4

1395--1410

EN

Tests were performed on example tools applied in hot die forging processes. After withdrawal from service due to excessive wear, these tools can be regenerated for re-use through machining and hardfacing. First, analysis of worn tools was carried out for the purpose of identifying tool working conditions and wear mechanisms occurring in the surface layer of tools during forging. Testing of worn tools included observations under a microscope, surface scanning and microhardness measurement in the surface layer. The results indicate very diverse work conditions, which suggest the application of different materials and hardfacing tool regeneration technology in individual die forging processes.