Sample records for diabta vln komplikciju

  1. VLN2 Regulates Plant Architecture by Affecting Microfilament Dynamics and Polar Auxin Transport in Rice[OPEN (United States)

    Wu, Shengyang; Xie, Yurong; Guo, Xiuping; Sheng, Peike; Wang, Juan; Wu, Chuanyin; Wang, Haiyang; Wan, Jianmin


    As a fundamental and dynamic cytoskeleton network, microfilaments (MFs) are regulated by diverse actin binding proteins (ABPs). Villins are one type of ABPs belonging to the villin/gelsolin superfamily, and their function is poorly understood in monocotyledonous plants. Here, we report the isolation and characterization of a rice (Oryza sativa) mutant defective in VILLIN2 (VLN2), which exhibits malformed organs, including twisted roots and shoots at the seedling stage. Cellular examination revealed that the twisted phenotype of the vln2 mutant is mainly caused by asymmetrical expansion of cells on the opposite sides of an organ. VLN2 is preferentially expressed in growing tissues, consistent with a role in regulating cell expansion in developing organs. Biochemically, VLN2 exhibits conserved actin filament bundling, severing and capping activities in vitro, with bundling and stabilizing activity being confirmed in vivo. In line with these findings, the vln2 mutant plants exhibit a more dynamic actin cytoskeleton network than the wild type. We show that vln2 mutant plants exhibit a hypersensitive gravitropic response, faster recycling of PIN2 (an auxin efflux carrier), and altered auxin distribution. Together, our results demonstrate that VLN2 plays an important role in regulating plant architecture by modulating MF dynamics, recycling of PIN2, and polar auxin transport. PMID:26486445

  2. Matematické modely a numerická simulace vln cunami

    Czech Academy of Sciences Publication Activity Database

    Švadlenka, Karel


    Roč. 57, č. 3 (2012), s. 177-185 ISSN 0032-2423 Institutional support: RVO:67985840 Keywords : Navier-Stokes equations * incompressibility conditions * Boussinesq model Subject RIV: BA - General Mathematics

  3. Změna postoje Japonců k Jižní Koreji v závislosti na tzv. " korejské vlně"


    Jarchovská, Anna


    (in English): This thesis is focused on exploring problems of adoption of South Korean television drama by Japanese audience. The thesis examines the degree of idealization of South Korea by Japanese viewers of Korean television drama Winter sonata. The first part is about the arrival of the Korean television drama to Japan, socio-cultural background of Japan in the nineties and to the typical Japanese viewers of television drama Winter Sonata. The second part deals with the analysis of the w...

  4. Možnosti posouzení efektu zesílení seizmických vln v zastavěných oblastech

    Czech Academy of Sciences Publication Activity Database

    Kaláb, Zdeněk; Knejzlík, Jaromír


    Roč. 7, č. 2 (2007), s. 99-108 ISSN 1213-1962. [Nové poznatky a měření v seizmologii, inženýrské geofyzice a geotechnice/16./. Ostrava, 17.04.2007-19.04.2007] R&D Projects: GA ČR GA105/07/0878 Institutional research plan: CEZ:AV0Z30860518 Keywords : site effect * urban areas * mining induced seismicity Subject RIV: DC - Siesmology, Volcanology, Earth Structure

  5. Vliv horkých a studených vln na kardiovaskulární úmrtnost a nemocnost v České republice

    Czech Academy of Sciences Publication Activity Database

    Hanzlíková, Hana; Kyselý, Jan; Plavcová, Eva


    Roč. 69, č. 3 (2016), s. 74-82 ISSN 0026-1173 R&D Projects: GA ČR(CZ) GAP209/11/1985 Institutional support: RVO:68378289 Keywords : temperature extremes * hot spells * cold spells * cardiovascular diseases * hospital admissions * mortality * Central Europe Subject RIV: DG - Athmosphere Sciences, Meteorology

  6. Časová proměnlivost horkých vln v České republice a extrémní horká vlna z roku 1994

    Czech Academy of Sciences Publication Activity Database

    Kyselý, Jan


    Roč. 56, - (2003), s. 13-19 ISSN 0026-1173 R&D Projects: GA ČR GP205/01/D040 Institutional research plan: CEZ:AV0Z3042911 Keywords : heat wave * temporal variability * Czech Republic * mortality Subject RIV: DG - Athmosphere Sciences, Meteorology

  7. Družicová pozorování vln v magnetosférickém plazmatu nízkých šířek


    Sochorová, Zuzana


    Title: Spacecraft observations of waves in low-latitude magnetospheric plasma Author: Zuzana Sochorová Department: Department of Surface and Plasma Science Supervisor: prof. Ondřej Santolík, Department of Surface and Plasma Science, Institute of Atmospheric Physics AS CR Abstract: The present doctoral thesis is based on the analysis of the electromagne- tic equatorial noise (EN) emissions. These waves propagate in the vicinity of the geomagnetic equator at frequencies between the local proton...

  8. Numericko-experimentální analýza šíření napěťových vln v ocelové desce zatížené kolmým rázem

    Czech Academy of Sciences Publication Activity Database

    Kolman, Radek; Trnka, Jan; Plešek, Jiří


    Roč. 11, č. 6 (2004), s. 1-13 ISSN 1210-2717 R&D Projects: GA AV ČR IAA2076904 Institutional research plan: CEZ:AV0Z2076919 Keywords : Stress wave propagation in plate * holointerferometry * finite element method Subject RIV: JJ - Other Materials

  9. Interview with Eddie Reisch (United States)

    Owen, Hazel


    Eddie Reisch is currently working as a policy advisor for Te Reo Maori Operational Policy within the Student Achievement group with the Ministry of Education in New Zealand, where he has implemented and led a range of e-learning initiatives and developments, particularly the Virtual Learning Network (VLN). He is regarded as one of the leading…

  10. Social Norms and the Relationship between Cigarette Use and Religiosity among Adolescents in the United States (United States)

    Gryczynski, Jan; Ward, Brian W.


    This study investigated the social dynamics that underlie the negative association between religiosity and cigarette use among U.S. adolescents. Using data from the 2007 National Survey on Drug Use and Health, the authors used a theory-based conceptual model (vicarious learning networks [VLN]) to examine the role that key reference group norms…

  11. Influential factors on radiotherapy efficacy and prognosis in patients with secondary lymph node metastasis after esophagectomy of thoracic esophageal squamous cell carcinoma

    Directory of Open Access Journals (Sweden)

    Zhou SB


    Full Text Available Shao-Bing Zhou,1,* Xin-Wei Guo,1,* Liang Gu,1,* Sheng-Jun Ji2 1Department of Radiation Oncology, Affiliated Taixing People’s Hospital of Yangzhou University, Taixing, 2Department of Radiotherapy and Oncology, Nanjing Medical University Affiliated Suzhou Hospital, Suzhou, People’s Republic of China *These authors contributed equally to this work Background: The purpose of this study was to clarify whether pretreatment tumor burden-related index, including the gross tumor volume (GTV of metastatic lymph nodes (VLN and maximum diameter of metastatic lymph nodes (DLN, and inflammatory markers, consisting of neutrophil-to-lymphocyte ratio (NLR and platelet-to-lymphocyte ratio (PLR, are useful for assessing the therapeutic effects and prognosis with secondary lymph node metastasis (LNM receiving chemoradiotherapy (CRT or radiotherapy (RT alone after resection of esophageal squamous cell carcinoma (ESCC. Patients and methods: A total of 119 patients with secondary LNM after resection of ESCC were recruited and received curative RT only or CRT. The enrolled patients were grouped according to the median values of NLR, PLR, VLN, and DLN. The relationship between the responsiveness to treatment and these markers was analyzed by logistic analysis. The Kaplan–Meier method and log-rank test were adopted to calculate and compare the overall survival (OS rates with these markers. The Cox models were used to carry out multivariate analyses. Results: Univariate logistic regression analysis showed that the responses to treatment were highly associated with treatment method (P=0.011, NLR (P=0.000, PLR (P=0.003, VLN (P=0.000, and DLN (P=0.000. Next, multivariate logistic regression analysis showed that therapeutic method (hazard ratio [HR]=1.225, P=0.032, NLR (HR=2.697, P=0.019, and VLN (HR=4.607, P=0.034 were independent risk factors for tumor response. Additionally, Kaplan–Meier survival analysis of this cohort revealed that NLR (Χ2=27.298, P=0.000, PLR

  12. Noise Estimation for Single-Slice Sinogram of Low-Dose X-Ray Computed Tomography Using Homogenous Patch

    Directory of Open Access Journals (Sweden)

    Zhiwu Liao


    Full Text Available We present a new method to estimate noise for a single-slice sinogram of low-dose CT based on the homogenous patches centered at a special pixel, called center point, which has the smallest variance among all sinogram pixels. The homogenous patch, composed by homogenous points, is formed by the points similar to the center point using similarity sorting, similarity decreasing searching, and variance analysis in a very large neighborhood (VLN to avoid manual selection of parameter for similarity measures.Homogenous pixels in the VLN allow us find the largest number of samples, who have the highest similarities to the center point, for noise estimation, and the noise level can be estimated according to unbiased estimation.Experimental results show that for the simulated noisy sinograms, the method proposed in this paper can obtain satisfied noise estimation results, especially for sinograms with relatively serious noises.

  13. Ceramics for Turbine Engine Applications. (United States)


    DEVELOPMENT OF CERAMIC NOZZLE SECTION FOR SMIALL RADIAL GAS TURBINE by J.C.Napier and J.P. Arnold 12 DEVELOPMENT OF A CERAMIC TURBINE NOZZLE RING by H.Burfeindt...this way, for instance, a Daimler engine was in 1911 awarded the prize of the "Automobiltechnische Gesell - schaft". In 1912, a Benz engine won the...blade development Turtle U~nion RB 199 v)ln BENEFITS OF CERAMICS TO GAS TURBINES by Arnold Brooks and Albert I. Bellin Aircraft Engine Group General

  14. Zpracování obrazových ultrazvukových dat


    Pokorný, Vojtěch


    Ultrazvuk je důležitá zobrazovací modalita využívaná v lékařství. Tato bakalářská práce obsahuje zpracování teorie týkající se fyzikálních vlastností ultrazvukového vlnění, stručný přehled historického vývoje ultrazvuku jako zobrazovací modality v medicíně, dále popisuje biofyziku šíření a biologické účinky ultrazvukových vln na tkáně a typy zobrazení výsledných snímků. Další část práce se zabývá popisem diagnostického ultrazvukového přístroje včetně nejčastěji používaných typů ultrazvukových...

  15. Mathematical prediction of freezing times of bovine semen in straws placed in static vapor over liquid nitrogen. (United States)

    Santos, M V; Sansinena, M; Zaritzky, N; Chirife, J


    A widespread practice in cryopreservation is to freeze spermatozoa by suspending the straws in stagnant nitrogen vapor over liquid nitrogen (N(2)V/LN(2)) for variable periods of time before plunging into liquid nitrogen (-196°C) for indefinite storage. A mathematical heat transfer model was developed to predict freezing times (phase change was considered) required for bull semen and extender packaged in 0.5ml plastic straws and suspended in static liquid nitrogen vapor. Thermophysical properties (i.e. thermal conductivity, specific heat, density, initial freezing temperature) of bovine semen and extender as a function of temperature were determined considering the water change of phase. The non-stationary heat transfer partial differential equations with variable properties (nonlinear mathematical problem) were numerically solved considering in series thermal resistances (semen suspension-straw) and the temperature profiles were obtained for both semen suspension and plastic straw. It was observed both the external heat transfer coefficient in stagnant nitrogen vapor and its temperature (controlled by the distance from the surface of liquid nitrogen to the straw) affected freezing times. The accuracy of the model to estimate freezing times of the straws was further confirmed by comparing with experimental literature data. Results of this study will be useful to select "safe" holding times of bull semen in plastic straws placed N(2)V/LN(2) to ensure that complete freezing of the sample has occurred in the nitrogen vapor and avoid cryodamage when plunging in LN(2). Freezing times predicted by the numerical model can be applied to optimize freezing protocols of bull semen in straws. Copyright © 2012 Elsevier Inc. All rights reserved.

  16. Modelová studie účinků ultrazvuku na vývoj plodu


    Jaroš, Josef


    Výrazný rozvoj ultrazvukové techniky je úzce svázán se zvyšováním výstupního výkonu ultrazvukových sond. Účinky ultrazvukového vlnění mohou za určitých podmínek nepříznivě ovlivnit vývoj plodu. Současné studie, které se zabývají modelováním účinků na biologickou tkáň jsou založeny na simulaci pole elementárních měničů. Hodnocené tepelné účinky jsou obvykle určovány jednorozměrně v ose měniče. Vytvořením flexibilního modelu diagnostických systémů je možné simulovat vyzařování různých typů sond...


    Energy Technology Data Exchange (ETDEWEB)



    The NASA SPACE RADIATION LABORATORY (NSRL) has been constructed and started operations at the Brookhaven National Laboratory in 2003. The NSRL facility will be used by NASA to perform radiation effect studies on materials and biological samples for the space program. The facility utilizes proton and heavy-ion beams of energies from 50 to 3000 MeVln which are accelerated by the AGS Booster synchrotron accelerator. To date, {sup 1}H, {sup 12}C, {sup 56}Fe, {sup 48}Ti, and {sup 197}Au ion beams of various magnetic rigidities have been extracted from the Booster, and transported by the NSRL beam transport line to the sample location which is located 100 m from the extraction point. The NSRL beam transport line has been designed to employ octupole magnetic elements which transform the normal (Gaussian) beam distribution at the location of the sample into a beam with rectangular cross section, and uniformly distributed over the sample. When using the octupole magnetic elements to obtain the uniform beam distribution on the sample, no beam-collimation is applied at any location along the NSRL beam transport line and the beam focusing on the sample is purely magnetic. The main subject of this paper will be the performance of the octupoles (third order optics) in obtaining uniform beam distributions at the target of the NSRL beam transport line.

  18. Textile industry in Brno: A case study of cultural heritage and the memory of an industrial center (KULTURNÍ DĚDICTVÍ A PAMĚŤ INDUSTRIÁLNÍHO CENTRA (PŘÍPAD TEXTILNÍHO BRNA

    Directory of Open Access Journals (Sweden)

    Aleš Vyskočil


    Full Text Available This paper discusses industrial heritage, i.e. the society‘s relationship with the rem-nants of defunct industrial infrastructure. We demonstrate the issues involved on the example of Brno, one of the key economic centers of the Czech lands. Brno owes this status to its early industrialization, especially the textile industry which dominated its economic landscape from the late 1700s. Early 1990s saw the total collapse of the industry which resulted, inter alia, in the city‘s landscape being dotted by abandoned, defunct and derelict industrial buildings and building complexes. Those are now viewed as impediments to city‘s development and the city is looking for new ways to utilize them. These effort have been somewhat successful, for example in revitalizing a number of brownfields, but a large-scale solutions is still a desidera-tum. As a result, a number of building with great historical and cultural value have been torn down, including the industrial site of Vlněna, one of the icons of the textile industry in Brno, which was demolished in 2016. A unique opportunity to preserve, transform and revitalize this unique complex of buildings with immense historical value was wasted and thus a significant part of the industrial identity of Brno was irrevocably lost.

  19. Koherence laserového svazku v turbulentní atmosféře


    Polanský, David


    V první části diplomové práce je rozebrána funkce laserů, jejich konstrukční provedení a zařazení do tříd. Následuje vysvětlení koherence a dalších vlastností laserového záření. Dále jsou uvedeny možnosti rozložení energie v laserovém svazku. Popsán je zejména Gaussovský svazek. V práci jsou vysvětleny ohybové jevy a Youngův experiment. Práce se zabývá vlivem atmosférického přenosového prostředí na elektromagnetické vlnění definované jako světlo. Zvláštní pozornost je věnována atmosférickým t...

  20. Identification of Actin-Binding Proteins from Maize Pollen

    Energy Technology Data Exchange (ETDEWEB)

    Staiger, C.J.


    Specific Aims--The goal of this project was to gain an understanding of how actin filament organization and dynamics are controlled in flowering plants. Specifically, we proposed to identify unique proteins with novel functions by investigating biochemical strategies for the isolation and characterization of actin-binding proteins (ABPs). In particular, our hunt was designed to identify capping proteins and nucleation factors. The specific aims included: (1) to use F-actin affinity chromatography (FAAC) as a general strategy to isolate pollen ABPs (2) to produce polyclonal antisera and perform subcellular localization in pollen tubes (3) to isolate cDNA clones for the most promising ABPs (4) to further purify and characterize ABP interactions with actin in vitro. Summary of Progress By employing affinity chromatography on F-actin or DNase I columns, we have identified at least two novel ABPs from pollen, PrABP80 (gelsolin-like) and ZmABP30, We have also cloned and expressed recombinant protein, as well as generated polyclonal antisera, for 6 interesting ABPs from Arabidopsis (fimbrin AtFIM1, capping protein a/b (AtCP), adenylyl cyclase-associated protein (AtCAP), AtCapG & AtVLN1). We performed quantitative analyses of the biochemical properties for two of these previously uncharacterized ABPs (fimbrin and capping protein). Our studies provide the first evidence for fimbrin activity in plants, demonstrate the existence of barbed-end capping factors and a gelsolin-like severing activity, and provide the quantitative data necessary to establish and test models of F-actin organization and dynamics in plant cells.

  1. The Influence of Hypo Kinesis and Frequency Strain of a Car Ride on Mechanical Functions of Axial System Changes

    Directory of Open Access Journals (Sweden)

    Kateřina van der Kamp


    pro pocit diskomfortu během monotónního zatížení během jízdy v automobilu. Metoda TVS je založena na aplikaci harmonického buzení plynule se měnícího od 5 Hz do 160 Hz na obratle C7 a L5. Toto vlnění se přenáší podél axiálního systému a akcelerometrickými snímači je snímáno zrychlení všech trnových výběžků obratlů, kterými se vlnění šíří mezi C7 až S1. Na základě naměřených dat lze vyhodnotit změnu mechanických vlastností páteře před a po hypokinéze a frekvenčním zatížení při jízdě v automobilu. Náš výzkum prokázal, že metoda TVS je vhodná pro detekci změn mechanických vlastností axiálního systému. Dále bylo prokázáno, že změny způsobené monotónním a frekvenčním zatížením ovlivňují způsob přenosu vlnění axiálním systémem subjektů. Z našich naměřených dat vyplývá, že můžeme subjekty srovnávat spíše intraindividuálně než interindividuálně. Zjistili jsme, že zdravá a flexibilní páteř osciluje jako elastická tyč a je schopna absorbovat více mechanické energie a spojení na páteři jsou více flexibilní. Rezonanční frekvence zdravé a flexibilní páteře se při našich měřeních objevuje mezi 40 a 60 Hz nebo výše. Ve většině případů nacházíme po jízdě v automobilu vyšší tlumení a nižší přenos vibrací. U některých subjektů se objevuje odlišná reakce na zatížení v hrudní a bederní páteři.

  2. Systemic lupus erythematosus in Thai children: clinicopathologic findings and outcome in 82 patients. (United States)

    Pattaragarn, Anirut; Sumboonnanonda, Achra; Parichatikanond, Paisal; Supavekin, Suroj; Suntornpoch, Vibul; Vongjirad, Arun


    To define the patterns of clinicopathologic findings and to identify the risk factors for renal failure and mortality of childhood-onset systemic lupus erythematosus (SLE) in Thailand. The study is a retrospective analysis of clinical manifestations, laboratory data, and pathologic findings, treatment modalities, and outcome of 82 patients with biopsy-proven lupus nephritis (LN) with disease onset between I January 1987 and 31 December 1997. All children developed these first manifestations at the age 13 years or under Sixty-four (789%) patients were females and eighteen (22%) were males (ratio female/male = 3.5:1). The patients were followed for a mean period of 53.6 months (range 1 -141). The mean age at disease onset was 9.2 years (range 2-12.6). Class-IV LN, observed in 40 (48.8%) patients, was the most frequent histopathology on initial renal biopsy. Less frequent findings were class-II (30.5%), V (14.6%), I (3.7%) and III (2.4%) LN. Based on the renal histopathology and clinical presentations, patients were treated with corticosteroids alone or in combination with azathioprine or with intravenous cyclophosphamide (CYC). Methylprednisolone pulses were given in patients with clinically more severe disease. Follow-up biopsies, performed in 12 patients, showed no change in 4 patients, and were progressive in 8 patients. On final clinical evaluation, 20 patients died, 65% died from serious infections, 15% from cardiopulmonary complications, and 10% from end stage renal disease. As the whole group, survival rates were 89% and 74% at 12 and 60 months, respectively. The 5-year patient survival in class-II, class-IV and class- VLN patients were 83%, 67% and 64%, respectively. Within the group of class-IV LN, the 5-year survival in the patients treated with intravenous CYC was significantly better than those receiving prednisolone with or without azathioprine. Five-year kidney survival rates from the time of diagnosis to the endpoints of terminal renal failure were 94

  3. Úvodník 2008/III/1

    Directory of Open Access Journals (Sweden)

    Jana Dlouhá


    Full Text Available Úvodník 2008/III/12008-06-26 23:03:07Jana DlouháZdravíme své čtenáře po delší době, s omluvou – čas sklizně nastal tentokrát mimo původně nastavený plán či sezónu. Avšak rytmus harmonického souzvuku, na jehož vlně se vezeme, a který závisí na vibracích určitého druhu, nelze vždy zvenčí ovlivnit. A tak máme alespoň pocit, že předkládáme cosi, co řádně dozrálo a hodí se tedy snad ke skladování dlouhodobějšímu.Jak se již stalo zvykem, na tomto místě nechceme podat zprávu o textech v pořadí jejich formální důležitosti či odborné zajímavosti – takto jsou uspořádány v přehledném obsahu čísla. Rádi bychom upozornili spíše na to, co byste možná jinak přehlédli. Tentokrát jsou to především přesahy do jiných světů, pootevřená vrátka k umění anebo hravé asociace na témata příliš vážná. Pokud se tomuto občerstvujícímu pohledu nevyhýbáte, podívejte se v první řadě na recenzi rozsáhlé diplomové práce Miroslavy Šulcové – popisuje v ní, jak je možné utvářet velmi osobní vztah k přírodě, a to prostřednictvím výtvarné tvorby s principy land-artu a akčního umění. Josef Straka uvádí knihu Jiřího Sádla (Prázdná země, listopadová část roku a rozehrává v ní celou škálu významů či náznaků, které nabízejí texty známého biologa. O poněkud mystické cestě k sobě samým podává svědectví Jiří Olšovský. Úvahy o bytostném vztahu člověka a přírody se zdají být tématem opravdu plodným, neboť tento okruh se bude brzy rozšiřovat o další texty, které k vydání teprve připravujeme.Zaměření našeho časopisu umožňuje publikovat i hravé a inteligentní inspirace do výuky vysokoškolské (Hrnečku vař Jiřího Nečase ovšem ukazuje pouze, jak neomezený růst modelovat, nikoliv jak mu poručit „Dost“ nebo základní (Bezpečná cesta do školy Jitky Heinrichové je popisem