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Plasma Science and Technology 2009年第6期11卷 750-754页

作者： Bozena ERA Michal ERY vitězslav tranak Petr PATENKA Milan TICHY Institute of Systems Biology and Ecology Academy of Sciences of the Czech RepublicNa Sadkach 7CZ-370 05 Ceske BudejoviceCzech Republic University of South Bohemia in Ceske Budejovice Faculty of EducationDepartment of PhysicsJeronymova 10CZ-371 15 Ceske BudejoviceCzech Republic Technical University of Liberec Department of Material SciencesHalkova 6CZ-461 17 Liberec 1Czech Republic Charles University in Prague Faculty of Mathematics and PhysicsV Holesovickach CZ-180 00 Praha 8Czech Republic

Low-pressure discharge is applied for stimulation of germination of two seed lots of Lamb＇s Quarters （Chenopodium album agg.） with different starting germinations （17%, 8%） and in different stages of dormancy. Different exposition durations with cold plasma treatment were applied. The variable of the ratio cumulative germination was calculated. The Richards＇ equation was used for curve-fitting and simulation of the growth curves. Population parameters, namely Vi - viability, Me - time, Qu - dispersion, and Sk - skewness, counted from the curves described the germination rate well. Significant differences among Qu confirmed the erratic dormancy and gradual germination of Lamb＇s Quarters. No difference in the Me parameter was found between two tested seed lots, and no interspecies characteristics were changed using low-pressure discharge. The results suggested that plasma treatment changed seed germination in Lamb＇s Quarters seeds.

关键词： chenopodium album fitting treatment parameter. seed germination low-pressure discharge plasma

Germination of Chenopodium Album in Response to Microwave Plasma Treatment

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Plasma Science and Technology 2008年第4期10卷 506-511页

作者： Bo■ena ER vitězslav STRA■K Michal ER■ Milan TICH■ Petr PATENKA Institute of Systems Biology and Ecology Academy of Sciences of the Czech RepublicNa Sádkách 7CZ-370 05eské BudějoviceCzech Republic University of South Bohemia in eské Budějovice Department of PhysicsJeronymova 10CZ-371 15 eské BudějoviceCzech Republic Charles University in Prague Faculty of Mathematics and PhysicsV Holeovikách 2CZ-180 00 Praha 8Czech Republic University of South Bohemia in eské Budějovice Department of PhysicsJeronymova 10 CZ-371 15 eské BudějoviceCzech Republic Technical University of LiberecDepartment of Material SciencesHáIkova 6CZ-461 17 Liberec iCzech Republic

The seeds of Lamb＇s Quarters （Chenopodium album agg.） were stimulated by low- pressure discharge. The tested seeds were exposed to plasma discharge for different time durations （from 6 minutes to 48 minutes）. Germination tests were performed under specified laboratory conditions during seven days in five identical and completely independent experiments. Significant differences between the control and plasma-treated seeds were observed. The treated seeds showed structural changes on the surface of the seat coat. They germinated faster and their sprout accretion on the first day of seed germination was longer. Germination rate for the untreated seeds was 15% while it increased approximately three times （max 55%） for seeds treated by plasma from 12 minutes to 48 minutes.

关键词： early growth germination Lamb's Quarters seed enhancement stimulation surfatron discharge

Risk Stratification in Obstetrics: An Integrated Approach to Maternal Health

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Open Journal of Obstetrics and Gynecology 2024年第6期14卷 903-910页

作者： Taina Crespo Mendonca Bianca Beatriz Soares dos Reis Júlia Cruz Coelho Antônio de Oliveira Battistini Pestana vitória Carolina Barreto Negri Alvaro Augusto Trigo Department of Medicine University of Franca Franca Brazil

Introduction: Prenatal care is crucial for maternal and fetal health, highlighting the importance of obstetric risk stratification. This enables personalized care, avoiding unnecessary interventions and reducing costs. Conditions such as first trimester bleeding, spontaneous abortion, gestational trophoblastic disease, and ectopic pregnancy require specific approaches. Early identification of these complications is vital, especially in urgent and emergency obstetric cases, which demand immediate hospital attention. Objective: Comprehensive review of first trimester pathologies and gestational hypertension, focusing on obstetric risks and personalized prenatal management. Methods: Literature review on bleeding and gestational hypertension. Results: The study provides a detailed analysis of pathologies associated with first trimester uterine bleeding and hypertensive disorders, focusing on obstetric risk stratification. The main causes of maternal and fetal mortality are hypertensive disorders, hemorrhages, infections, childbirth complications, and abortion. Spontaneous abortion is common, with different classifications, ranging from threatened to missed abortion. Infected abortion is a severe complication. Brazil has restrictive abortion laws, but many unsafe abortions occur, resulting in high public health costs. Pharmacological treatment with misoprostol is a safe option. Other pathologies include gestational trophoblastic disease, ectopic pregnancy, and placenta previa. Preeclampsia and eclampsia are severe conditions requiring immediate treatment to avoid complications. Conclusion: Early identification and management of obstetric risk factors, such as uterine bleeding, are essential for positive maternal and fetal outcomes. A multidisciplinary approach is fundamental.

关键词： Obstetrics Emergencies Hypertension Pregnancy-Induced Uterine Hemorrhage Pregnancy Trimester First

Semi-Implicit Interior Penalty Discontinuous Galerkin Methods for Viscous Compressible Flows

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Communications in Computational Physics 2008年第7期4卷 231-274页

作者： vit Dolejsi Charles University Prague Faculty of Mathematics and PhysicsSokolovska 8318675 PragueCzech Republic.

We deal with the numerical solution of the Navier-Stokes equations describing a motion of viscous compressible *** order to obtain a sufficiently stable higher order scheme with respect to the time and space coordinates,we develop a combination of the discontinuous Galerkin finite element(DGFE)method for the space discretization and the backward difference formulae(BDF)for the time *** the resulting discrete problem leads to a system of nonlinear algebraic equations at each time step,we employ suitable linearizations of inviscid as well as viscous fluxes which give a linear algebraic problem at each time ***,the resulting BDF-DGFE scheme is applied to steady as well as unsteady flows and achieved results are compared with reference data.

关键词： Compressible Navier-Stokes equations discontinuous Galerkin finite element method backward difference formulae linearization.

Molecular studies resolve Nyholmiella (Orthotrichaceae) as a separate genus

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Journal of Systematics and Evolution 2010年第3期48卷 183-194页

作者： Jakub SAWICKI Vítězslav PLEK Monika SZCZECINSKA Department of Botany and Nature Protection University of Warmia and Mazury in OlsztynPlacLódzki 110-727 OlsztynPoland Department of Biology & Ecology University of OstravaChittussiho 10CZ-710 00Czech Republic

Two Orthotrichum species of the subgenus Orthophyllum were compared with other representatives of this genus using internally transcribed spacer regions 1 and 2,the chloroplast trnH-psbA region,and inter-simple sequence repeat(ISSR)and intron-exon splice conjunction(ISJ)*** ISSR and ISJ markers used revealed many bands and mutations specific only to *** and *** analysis clearly supported previous concepts postulating that species of the subgenus Orthophyllum should be recognized as the separate genus Nyholmiella.

关键词： molecular taxonomy Nyholmiella Orthotrichum phylogeny.

Cerebral and muscle tissue oxygenation during exercise in healthy adults: A systematic review

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Journal of Sport and Health Science 2024年第4期13卷 459-471,F0003页

作者： Diego Orcioli-Silva Victor Spiandor Beretta Paulo Cezar Rocha Santos Felipe Marroni Rasteiro Anita Brum Marostegan Rodrigo vitorio Claudio Alexandre Gobatto Fulvia Barros Manchado-Gobatto Laboratory of Applied Sport Physiology(LAFAE) School of Applied Sciences(FCA)University of Campinas(UNICAMP)Limeira 13484-350Brazil Posture and Gait Studies Laboratory(LEPLO) Institute of BiosciencesSao Paulo State University(UNESP)Rio Claro 13506-900Brazil Physical Education Department School of Technology and SciencesSao Paulo State University(UNESP)Presidente Prudente 19060-900Brazil Department of Computer Science&Applied Mathematics Weizmann Institute of ScienceRehovot 7610001Israel Center of Advanced Technologies in Rehabilitation Sheba Medical CenterRamat Gan 5265601Israel Department of Sport Exercise and RehabilitationNorthumbria UniversityNewcastle upon Tyne NE18STUK

Background:Near-infrared spectroscopy(NIRS)technology has allowed for the measurement of cerebral and skeletal muscle oxygenation simultaneously during *** this technology has been growing and is now successfully used in laboratory and sports settings,this systematic review aimed to synthesize the evidence and enhance an integrative understanding of bloodﬂow adjustments and oxygen(O_(2))changes(i.e.,the balance between O_(2) delivery and O_(2) consumption)within the cerebral and muscle systems during ***:A systematic review was conducted using PubMed,Embase,Scopus,and Web of Science databases to search for relevant studies that simultaneously investigated cerebral and muscle hemodynamic changes using the near-infrared spectroscopy system during *** review considered manuscripts written in English and available before February 9,*** step of screening involved evaluation by 2 inde-pendent authors,with disagreements resolved by a third *** Joanna Briggs Institute Critical Appraisal Checklist was used to assess the methodological quality of the ***:Twenty studies were included,of which 80%had good methodological quality,and involved 290 young or middle-aged *** types of exercises were used to assess cerebral and muscle hemodynamic changes,such as cycling(n=11),treadmill(n=1),knee extension(n=5),isometric contraction of biceps brachii(n=3),and duet swim routines(n=1).The cerebral hemodynamics anal-ysis was focused on the frontal cortex(n=20),while in the muscle,the analysis involved vastus lateralis(n=18),gastrocnemius(n=3),biceps brachii(n=5),deltoid(n=1),and intercostal muscle(n=1).Overall,muscle deoxygenation increases during exercise,reaching a plateau in voluntary exhaustion,while in the brain,oxyhemoglobin concentration increases with exercise intensity,reaching a plateau or declining at the exhaustion ***:Muscle and cerebral oxygenation respond differently to exercise,with muscle

关键词： Near-infrared spectroscopy Hemodynamic Blood flow Brain Muscle metabolism

Do the microorganisms from laboratory culture spent growth medium affect house dust mite fitness and microbiome composition?

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Insect Science 2020年第2期27卷 266-275页

作者： vit Molva Marie Bostlova Marta Nesvorna Jan Hubert Crop Research Institute Prague 6-RuzyneCzechia Faculty of Science Department of ParasitologyCharles UniversityPrague 2Czechia

The interaction of house dust mites(HDM)and microorganisms is the key factor in the survival of these mites in human-made *** growth medium(SPGM)provides the rest of the dict,along with dead mite bodies and *** represents a source of microorganisms for the recolonization of mite food and the mite digestive *** experiment was performed to observe how adding SPGM to the HDM diet affects HDM population growth,the microbiome composition and the microbial respiration in *** analyzed American house dust mite(Dermatophagoides farinae)and European house dust mite(Dermatophagoides pleronyssinus)originating from control diets and diets treated with an extract of SPGM from 1-and 3-month-old mite *** microbiome was described using 16S and 18S barcode *** composition of the bacterial and fiungal microbiomes differed between the HDM species,but the SPGM treatment influenced only the bacterial profile of *** the *** microbiome of specimens on SPGM-treated dicts compared to those of the control situation,the Lactobacillus profile decreased,while the Candinium,Staphylococ-cus,Acinetobacter,and Sphingomonas profiles *** addition of SPGM extract decreased the microbial respiration in the microcosms with and without mites in almost all *** SPGM did not influence the population growth of ***,but it had a variable effect on *** results indicated that the HDM are marginally influenced by the microorganisms in their feces.

关键词： diet feces feeding house dust mites microbiome microorganisms mites

Characterization of Curing and Bonding of Wood with Adhesive Mixtures of Liquefied Wood and Hexamethylenediamine

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Journal of Renewable Materials 2023年第2期11卷 991-1001页

作者： JureŽigon vitŠeda PetrČermák MilanŠernek Department of Wood Science and Technology Biotechnical FacultyUniversity of LjubljanaLjubljana1000Slovenia Department of Wood Science and Technology Faculty of Forestry and Wood TechnologyMendel University in BrnoBrno61300Czech Republic

Various crosslinking agents can be added to the formulations of natural-based adhesives for wood bonding in order to achieve better durability and higher strength of the formed *** the present study,the effect of hexamethylenediamine(HMDA)addition on the performance of liquefied wood(LW)adhesive for wood bonding is *** scanning calorimetry showed the improved thermal stability and crosslinking of the LW adhesive with *** intensified presence of amide linkages(C–N bonds)was found in LW+HMDA with attenuated total reflection Fourier transform infrared *** of the bonded joints using an automated bonding evaluation system showed that a higher press temperature resulted in stronger bonds for both types of ***,the addition of HMDA to LW adhesive improved the bond strength of the joints and accelerated the crosslinking of the ***,with a tensile shear strength of(6.76±2.16)N×mm^(−2)(for LW)and(6.89±2.10)N×mm^(−2)(for LW+HMDA),both adhesives were found to be unsuitable for interior non-structural *** addition,the acidity of LW resulted in relatively high wood failure(70%)in the adhesive joints *** crosslinking of LW with HMDA was reflected in improved resistance of LW+HMDA adhesive joints to water *** conclusion,HMDA is a promising additive for improving the adhesive performance of LW adhesives.

关键词： Adhesive bonding hexamethylenediamine liquefied wood

Sensitivity analysis of parameters and contrasting performance of ground filtering algorithms with UAV photogrammetry-based and LiDAR point clouds

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International Journal of Digital Earth 2020年第12期13卷 1672-1694页

作者： Petr Klápště Michal Fogl Vojtěch Barták Kateřina Gdulová Rudolf Urban Vítězslav Moudrý Department of Applied Geoinformatics and Spatial Planning Faculty of Environmental SciencesCzech University of Life Sciences PragueKamýcká129Praha-Suchdol16500Czech Republic Department of Special Geodesy Faculty of Civil EngineeringCzech Technical University in PraguePragueCzech Republic

Most ground filtering algorithms are primarily designed for airborne LiDAR point cloud processing and their successful use in identifying ground points from photogrammetric point clouds remains *** compared six ground filtering algorithms implemented in Metashape,ArcGIS,CloudCompare,LAStools,and *** used UAV photogrammetry-based(acquired under leaf-off conditions)and airborne LiDAR(leaf-on)point clouds of the same area to:(i)compare accuracy of generated DTMs;(ii)evaluate the effect of vegetation density and terrain slope on filtering accuracy;and(iii)assess which algorithm parameters have the greatest effect on the filtering *** results show that the performance of filtering algorithms was affected by the point cloud type,terrain slope and vegetation *** results were generally better for LiDAR(RMSE 0.13–0.19 m)than for photogrammetric(RMSE 0.19–0.23 m)point *** behavior in varying vegetation and terrain conditions was consistent for LiDAR point ***,when applied on photogrammetric point clouds,the algorithms’behavior was inconsistent,especially in areas of steep slope(except for the Progressive Triangulated Irregular Network in LAStools).Parameters related to the selection of the initial minimum elevation ground points were the most influential in all algorithms and point clouds.

关键词： DTM filtering LiDAR point cloud spoil heap UAV

Average-Case Analysis of Algorithms UsingKolmogorov Complexity

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Journal of Computer Science & Technology 2000年第5期15卷 402-408页

作者：姜涛李明等 DepartmentofComputingScience UniversityofCaliforniaRiversideCA92521USA DepartmentofComputerScience UniersityofCaliforniaSantaBarbaraCA93106USA

Analyzing the average-case complexity of algorithms is a very practical but very difficult problem in computer science. In the past few years I we have demonstrated that Kolmogorov complexity is an important tool for analyzing the average-case complexity of algorithms. We have developed the incompressibility method. In this paper, several simple examples are used to further demonstrate the power and simplicity of such method. We prove bounds on the average-case number of stacks (queues) required for sorting sequential or parallel Queuesort or Stacksort.

关键词： Kolmogorov complexity algorithm average-case analysis sorting