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光谱学与光谱分析 2016年第2期36卷 583-587页

作者： Alexander Shyichuk dorota ziókowska Jan Lamkiewicz UTP University of Science and Technology Faculty of Chemical Technology and Engineering

Poly(diallyldimethylammonium chloride)(PDDA)is used as organic coagulant in water purification and auxiliary agent in paper *** of PDDA in aqueous solutions is carried out usually by means of polyelectrolyte titration using streaming current detector or o-Toluidine Blue dye for endpoint *** proposed method of PDDA assay takes advantage of Coomassie Brilliant Blue G dye having strong affinity to cationic *** of PDDA solution with the dye is carried out measuring absorbance at *** points of the obtained zigzag photometric curves have good repeatability provided that titration rate is low enough to attain endpoint for 1hour or *** method assures rectilinear calibration(R2=0.999 5)in the broad range of PDDA concentrations from 0.3to 9.6mg·dm^(-3).

关键词： PDADMAC PolyDADMAC Cationic polyelectrolyte Colloid titration

Antiviral factors and their counteraction by HIV-1: many uncovered and more to be discovered

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Journal of Molecular Cell Biology 2024年第2期16卷 1-10页

作者： dorota Kmiec Frank Kirchhoff Institute of Molecular Virology Ulm University Medical Center89081 UlmGermany

Extensive studies on HIV-1 have led to the discovery of a variety of structurally and functionally diverse innate defense factors that target various steps of the retroviral replication *** of them,such as APOBEC3,tetherin,and SERINC5,are well *** importance is evident from the fact that HIV-1 uses its accessory proteins Vif,Vpu,and Nef to counteract ***,the list of antiviral factors is constantly increasing,and accumulating evidence suggests that innate defense mechanisms,which restrict HIV-1 and/or are counteracted by viral proteins,remain to be *** antiviral factors are relevant to diseases other than HIV/AIDS,since they are commonly active against various viral *** this review,we provide an overview of recently reported antiretroviral factors and viral countermeasures,present the evidence suggesting that more innate defense mechanisms remain to be discovered,and discuss why this is a challenging but rewarding task.

关键词： HIV-1 restriction factors viral antagonists interferon-stimulated genes antiviral factors

Changes in the adult sex ratio of six duck species breeding populations over two decades

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Avian Research 2024年第2期15卷 202-210页

作者： Monika Homolkova Petr Musil Diego Pavon-Jordan dorota Gajdosova Zuzana Musilova Sarka Neuzilova Jan Zouhar Department of Ecology Faculty of Environmental SciencesCzech University of Life Sciences PragueKamýcka 129CZ-16521Prague–SuchdolCzech Republic Department of Terrestrial Ecology Norwegian Institute for Nature Research(NINA)PO Box 5685 TorgardenTrondheimN-7485Norway Department of Econometrics Faculty of Informatics and StatisticsUniversity of Economicsnam.W.Churchilla 4CZ-13067Prague 3Czech Republic

Despite all efforts,long-term changes in the adult sex ratios of breeding duck populations are still unclear;this uncertainty is especially true for male-bias populations,which are often under the scrutiny of researchers lacking convenient results for the active protection of endangered *** with male-bias populations are usually strongly affected by a decline in population size that leads to a higher extinction *** this study,we examined our long-term data of the abundance of breeding populations in six duck species(Mallard Anas platyrhynchos,Gadwall Mareca strepera,Red-crested Pochard Netta rufina,Common Pochard Aythya ferina,Tufted Duck Aythya fuligula,and Common Goldeneye Bucephala clangula)from fishponds in South Bohemia,Czechia,between 2004 and *** evidence was used to assess long-term changes in the adult sex ratio in these breeding populations and investigate the possible effects of the NAO index(North Atlantic Oscillation index)on them,indicating climate conditions in *** determined a long-term decrease of the proportion of females in the breeding season in two of the six examined species:Common Pochard and Red-crested Pochard,which is driven by the long-term increase in the number of males in contrast to the decreasing or stable number of females likely caused by different migration behaviours between females and *** the case of Common Pochard,in breeding populations,we estimated 60-65%of males in the early 2000s rising to 75-80%in the early ***,we establish no significant effects linked to climate conditions of the previous winter in these species as a crucial cause of the changes of the proportion of females in the breeding population.

关键词： Adult sex ratio Breeding population Population dynamics Red-listed species Waterfowl Winter weather conditions

A single degenerated primer significantly improves COX1 barcoding performance in soil nematode community profiling

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Soil Ecology Letters 2024年第2期6卷 31-44页

作者： Yincai Ren dorota L. Porazinska Quanhui Ma Shuhan Liu Hongmei Li Xue Qing Department of Plant Pathology Nanjing Agricultural UniversityNanjing210095China Department of Entomology and Nematology University of FloridaGainesvilleFL32611USA Institute of Grassland Science Key Laboratory of Vegetation Ecology of the Ministry of EducationJilin Songnen Grassland Ecosystem National Observation and Research StationNortheast Normal UniversityChangchun130024China

A new COX1 primer for soil nematode metabarcoding was designed,and this primer outperforms other commonly used COX1 primer pairs in species recovery and quantity of PCR products.•The lack of reference database is the main reason that led to the low species recovery in COX1 metabarcoding.•We expanded current NCBI database by adding 51 newly generated COX1 reference *** nematodes play important roles in soil ecosystems and often serve as bioindicators of soil *** identification of soil nematodes is often difficult due to their limited diagnostic characters and high phenotypic *** barcoding and metabarcoding techniques are promising but lack universal primers,especially for mitochondrial COX1 *** this study a degenerated COX1 forward primer COIFGED was *** primer pair(COIFGED/JB5GED)outperforms other four commonly used COX1 primer pairs in species recovery and quantity of polymerase chain reaction(PCR)*** metabarcoding analysis,the reads obtained from the new primer pair had the highest sequencing saturation threshold and amplicon sequence variant(ASV)diversity in comparison to other COX1 as well as 18S rRNA *** annotation of ASVs suggested the new primer pair initially recovered 9 and 6 out of 25 genera from mock communities,respectively,outperformed other COX1 primers,but underperformed the widely used 18S NF1/18Sr2b primers(16 out of 25 genera).By supplementing the COX1 database with our reference sequences,we recovered an additional 6 mock community species bringing the tally closer to that obtained with 18S *** summary,our newly designed COX1 primers significantly improved species recovery and thus can be supplementary or alternative to the conventional 18S metabarcoding.

关键词： degenerated primers DNA metabarcoding mitochondrial cytochrome oxidase c subunit I gene phylogeny ribosomal RNA gene soil nematodes

Fuel poverty and low carbon emissions: a comparative study of the feasibility of the hybrid renewable energy systems incorporating combined heat and power technology

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Frontiers in Energy 2022年第2期16卷 336-356页

作者： dorota RZETELSKA Madeleine COMBRINCK Department of Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle-upon-TyneNE18STUK

Fuel poverty is most prevalent in North East England with 14.4%of fuel poor households in Newcastle upon *** aim of this paper was to identify a grid connected renewable energy system coupled with natural gas reciprocating combined heat and power unit,that is cost-effective and technically feasible with a potential to generate a profit from selling energy excess to the grid to help alleviate fuel *** system was also aimed at low carbon *** models were designed and optimized with the aid of the HOMER Pro *** were compared with respect to their economic,technical,and environmental performance.A solution was proposed where restrictions were placed on the size of renewable energy *** configuration consists of 150 kW CHP,300 kW PV cells,and 30 kW wind *** renewable fraction is 5.10%and the system yields a carbon saving of 7.9%in comparison with conventional *** initial capital investment is$1.24 million which enables the system to have grid sales of 582689 kWh/a.A conservative calculation determined that 40%of the sales can be used to reduce the energy cost of fuel poor households by$706 per *** solution has the potential to eliminate fuel poverty at the site analyzed.

关键词： greenhouse gas control low carbon target grid connected renewable fraction fuel poverty combined heat and power HOMER Pro

Effects of hyperbaric oxygen therapy on human psychomotor performance:A review

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结合医学学报:英文版 2023年第5期21卷 430-440页

作者： dorota Olex-Zarychta Institute of Sport Sciences Academy of Physical Education in Katowice40-065 KatowicePoland

Psychomotor performance is the coordination of a sensory or ideational(cognitive)process and a motor *** sensorimotor processes involved in planning and execution of voluntary movements need oxygen supply and seem to be significantly disrupted in states of *** oxygen therapy has become a widely used treatment in routine medicine and sport medicine due to its beneficial effects on different aspects of human physiology and *** paper presents state-of-the-art data on the effects of hyperbaric oxygen therapy on different aspects of human psychomotor *** therapy’s influence on musculoskeletal properties and motor abilities as well as the effects of hyperbaric oxygenation on cognitive,myocardial and pulmonary functions are *** this review the molecular and physiological processes related to human psychomotor performance in response to hyperbaric oxygen are discussed to contribute to this fast-growing field of research in integrative medicine.

关键词： Hyperbaric oxygen therapy Hypoxia Psychomotor performance Oxidative metabolism

Application of monodispersive anion exchangers in sorption and separation of Y^3＋ from Nd^3＋ and Sm^3＋ complexes with dcta

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Journal of Rare Earths 2008年第5期26卷 619-625页

作者： Halina Hubicka dorota Kolodynska Department of Inorganic Chemistry Faculty of Chemistry Maria Curie-Sklodowska University Maria Curie-Sklodowska Sq.3 20-031 Lublin Poland

Rare earth complexes with trans-1,2-diaminocyclohexane-N,N,N ,N -tetraacetic acid （DCTA） of the Ln（dcta） type exhibited an unusual sequence of affinity on the polystyrene anion exchangers： pm^3＋〉Nd^3＋〉Sm^3＋〉Pr^3＋〉Ce^3＋〉Eu^3＋〉Gd^3＋〉La^3＋〉Sc^3＋〉Tb^3＋〉Dy^3＋〉 Ho^3＋〉Y^3＋〉Er^3＋〉Tm^3＋〉Yb3＋〉Lu^3＋[1]. Taking into account the position of Y^3＋, Sm^3＋, and Nd^3＋ in this affinity series, for the monodispersive polystyrene anion exchangers, Lewatit MonoPlus M 500, Lewatit MonoPlus M 600, Lewatit MonoPlus MP 500, Lewatit MonoPlus MP 64, and for the heterodispersive anion exchanger, Lewatit MP 62, the weight （Dg） and bed （Dv） distribution coefficients of these complexes and working ion exchange capacities （Cw） were determined. Based on these values, purifications of Y^3＋ from Nd^3＋ and Y^3＋ from Sm^3＋ in the macro-micro component system on these anion exchangers were studied. The application potential of this method was highlighted for the separation of Y^3＋ in the presence of Nd^3＋ and Sm^3＋. With 1 L of monodispersive and strongly basic polystyrene gel anion exchanger Lewatit MonoPlus M 500 in the acetate form, it is possible to obtain approximately 79 g Y2O3 purified from Nd2O3 and 70 g Y2O3 purified from Sm2O3 in the same process condition.

关键词： DCTA rare earth complexes anion exchange

Neural control of the soleus H-reflex correlates tothe laterality pattern in limbs

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Neural Regeneration Research 2010年第5期5卷 390-395页

作者： dorota Olex-Zarychta Department of Theory and Methodology of Physical Education Academy of Physical Education

BACKGROUND： Previous studies have demonstrated the relationship of lower limb dominance with left- and right-handedness, supporting findings suggest that there is a role for peripheral factors in the neural control of movement. OBJECTIVE： To investigate the effect of laterality pattern on the neural mechanisms of motor control at the peripheral level. DESIGN, TIME AND SETTING： A controlled observation experiment was performed at the Motor Diagnostics Laboratory of the Academy of Physical Education in Katowice, Poland, in June 2009. PARTICIPANTS： Twenty young male adults aged 21-23 years and presenting two laterality patterns in hand-foot combination （right handed-right footed and left handed-left footed groups） took part in the experiment. All participants were carefully screened to eliminate any neurological or muscle disease or trauma. METHODS： The experiment included a laterality evaluation and the motor evoked potentials of dominant and non-dominant limbs. Measures were done through the use of the Hoffmann-reflex （H-reflex） circuitry. The soleus H-reflex parameters elicited at rest in lower extremities were compared. The soleus H-reflex and the direct motor response were elicited in lower extremities of each participant in the same laboratory session. MAIN OUTCOME MEASURES： Onset latencies and min-max amplitudes of the direct motor response and the H-reflex; the motor and sensory conduction velocities; and symmetry coefficients of response parameters. RESULTS： The analysis of symmetry coefficients of direct and late motor responses confirmed differences between two laterality patterns in amplitude and latency of the H-reflex as well as in a sensory conduction velocity （P 〈 0.05）, but not in direct motor response parameters. The amplitude of the H-reflex and the calculated sensory la afferent conduction velocity in the dominant lower extremity were significantly depressed in the right-sided group in comparison to the left-sided group （P = 0.001）. The right-sided

关键词： Hoffmann-reflex laterality motor control neural circuitry human peripheral factors

Effects of Polar Organic Solvent on Separation of Y(edta)^-/Nd(edta)^- Complexes on Polyacrylic Anion Exchangers

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Journal of Rare Earths 2005年第1期23卷 124-128页

作者： Halina Hubicka dorota Kolodynska Department of Inorganic Chemistry Faculty of Chemistry Maria Curie-Sklodowska University Maria Curie-Sklodowska Sq.3 20-031 Lublin PolandDepartment of Inorganic Chemistry Faculty of Chemistry Maria Curie-Sklodowska University Maria Curie-Sklodowska Sq.3 20-031 Lublin Poland

The use of polar organic solvents for the separations of rare earth elements (Ⅲ) is effective especially for their extensive separations despite the solubility limitations. The study shows that polyacrylate anion exchangers, particularly the weakly basic, gel anion exchanger Amberlite IRA 68, can be applied to the separation of rare earth complexes with EDTA in H_2O-methanol and H_2O-ethanol systems. In most cases the determined distribution coefficients of Ln^(3+) complexes with EDTA in mixed media like water-methanol on polyacrylate anion exchangers are larger than those in pure water (media.)

关键词： polar organic solvent Y(edta)^-/Nd(edta)^- separation ion exchange rare earths

Diversity of Saccharomyces boulardii CNCM I-745 mechanisms of action against intestinal infections

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World Journal of Gastroenterology 2019年第18期25卷 2188-2203页

作者： dorota Czerucka Patrick Rampall Department of Human Health Division of Ecosystems and Immunity Center Scientific of Monaco Center Scientific of Monaco

The yeast Saccharomyces boulardii CNCM I-745 is one of the probiotics recommended for the prevention of antibiotic-associated diarrhea. Studies conducted in vivo and in vitro demonstrated that in the case of infectious diseases there are two potential sites of action of Saccharomyces boulardii CNCM I-745:(1)An action on enteropathogenic microorganisms(adhesion of bacteria and their elimination or an effect on their virulence factors: Toxins, lipopolysaccharide,etc.); and(2) a direct action on the intestinal mucosa(trophic effects, effects on epithelial reconstitution, anti-secretory effects, anti-inflammatory,immunomodulators). Oral administration of Saccharomyces boulardii CNCM I-745 to healthy subjects does not alter their microbiota. However, in the case of diseases associated with the use of antibiotics or chronic diarrhea, Saccharomyces boulardii CNCM I-745 can restore the intestinal microbiota faster. The interaction of Saccharomyces boulardii CNCM I-745 with the innate immune system have been recently demonstrated thus opening up a new therapeutic potential of this yeast in the case of diseases associated with intestinal infections but also other pathologies associated with dysbiosis such as inflammatory diseases.

关键词： Saccharomyces boulardii CNCM I-745 Probiotics Yeast Intestinal infection Mechanism