Log in

Relevant bibliographies by topics / F.V / Journal articles

To see the other types of publications on this topic, follow the link: F.V.

Journal articles on the topic 'F.V'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'F.V.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Samis, John A., Kenneth A. Stewart, Cheng Hock Toh, Colin Downey, and Michael E. Nesheim. "A New Functional Coagulation Assay for Measurement of Total Factor V Activity in Human Plasma and Its Application to Samples from Patients with Disseminated Intravascular Coagulation." Blood 104, no. 11 (November 16, 2004): 2983. http://dx.doi.org/10.1182/blood.v104.11.2983.2983.

Full text

Abstract:

Abstract Factor V (F.V) circulates as an inactive single chain procofactor. Only upon cleavage and activation with thrombin to F.Va does it function as a cofactor in the F.Xa-mediated conversion of prothrombin to thrombin. The conventional F.V coagulation assay measures the one-stage clotting activity, which most likely reflects the trace of F.V that is activated in the sample or becomes activated during the assay. Since F.V is activated by thrombin to F.Va, a second (two-stage) assay is crucial to fully assess the total F.V potential activity in the plasma sample. For this assay, normal human pooled plasma (diluted 100- to 500-fold) was treated with thrombin (1–5 NIH Units/ml, final concentration) for various times at 37°C to fully activate the F.V. The added thrombin was inhibited with a 2-fold molar excess of Phe-Pro-Arg chloromethylketone (PPACK) and the sample re-assayed. This second assay measures the total F.V activity of a sample. Maximal 10-fold activation of plasma F.V activity occurred with 2Units/ml thrombin after 1 to 2min at 37°C and this activity was stable for 30min prior to PPACK addition. Control experiments indicated that the levels of PPACK used did not affect the one-stage F.V activity of untreated plasma samples but were required to inhibit the added thrombin from clotting fibrinogen in the assay. Assay of timed plasma samples (n=48) from seven patients admitted to the Intensive Care Unit and subsequently diagnosed with disseminated intravascular coagulation (DIC), indicated that the total F.V activity, the specific activity (total F.V activity/antigen), and the activation quotient were decreased, on average, by 45%, 49%, and 31%, respectively, from that observed with normal human pooled plasma. The results indicate that the total amount of activatable F.V as well as its degree of activation decreases from normal as part of the pathogenesis of DIC in humans. Further, the decreased total F.V specific activity observed in DIC patient plasma samples indicates that the F.V that is present is less active per molecule than normal, possibly because of proteolytic inactivation. This total F.V clotting assay should provide new information about the biochemistry of F.V and its contribution to the pathogenesis of coagulation disorders.

APA, Harvard, Vancouver, ISO, and other styles

2

Samis, John A., Marilyn Garrett, Reginald P. Manuel, Michael E. Nesheim, and Alan R. Giles. "Human Neutrophil Elastase Activates Human Factor V but Inactivates Thrombin-Activated Human Factor V." Blood 90, no. 3 (August 1, 1997): 1065–74. http://dx.doi.org/10.1182/blood.v90.3.1065.

Full text

Abstract:

Abstract The effect of human neutrophil elastase (HNE) on human factor V (F.V) or α-thrombin–activated human factor V (F.Va) was studied in vitro by prothrombinase assays, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), and NH2 -terminal sequence analysis. Incubation of F.V (600 nmol/L) with HNE (2 nmol/L) in the presence of Ca2+ resulted in a time-dependent increase in its cofactor activity. In contrast, treatment of F.Va (600 nmol/L) with HNE (60 nmol/L) in the presence of Ca2+ resulted only in a time-dependent decrease in its cofactor activity. Under the conditions of these experiments, the maximum extent of F.V activation accomplished by incubation with HNE was approximately 65% to 70% of that observed with α-thrombin in presence of Ca2+. The extent of both the HNE-dependent enhancement in F.V cofactor activity and the HNE-dependent decrease in F.Va cofactor activity was not influenced by the addition of phosphatidylcholine/phosphatidylserine (PCPS) vesicles (50 μmol/L). The HNE-derived cleavage products of F.V, which correlated with increased cofactor activity, as demonstrated by SDS-PAGE under reducing conditions, were different from those generated using α-thrombin. Treatment of F.V (600 nmol/L) with HNE (2 nmol/L) in the presence of Ca2+ resulted in the production of three closely spaced doublets of: 99/97, 89/87, and 76/74 kD whose appearance over time correlated well with the increased cofactor activity as judged by densitometry. Treatment of F.Va (600 nmol/L) with HNE (60 nmol/L) in the presence of Ca2+ resulted in the cleavage of both the 96 kD heavy chain and the 74/72 kD light chain into products of: 56, 53, 35, 28, 22, and 12 kD. Although densitometry indicated that both the heavy and light chains of F.Va were hydrolyzed by HNE, cleavage of the 96 kD heavy chain was more extensive during the time period (10 to 30 minutes) of the greatest loss of F.Va cofactor activity. NH2 -terminal sequence analysis of F.V treated with HNE indicated cleavage at Ile819 and Ile1484 under conditions during which the procofactor expressed enhanced cofactor activity in the prothrombinase complex. NH2 -terminal sequence analysis of F.Va treated with HNE indicated cleavage at Ala341, Ile508, and Thr1767 under conditions, which the cofactor became inactivated, as measured by prothrombinase activity. The activation and inactivation cleavage sites are close to those cleaved by the physiological activator and inactivator of F.V and F.Va, namely α-thrombin (Arg709 and Arg1545) and Activated Protein C (APC) (Arg306 and Arg506), respectively. These results indicate that HNE can generate proteolytic products of F.V, which initially express significantly enhanced procoagulant cofactor activity similar to that observed following activation with α-thrombin. In contrast, HNE treatment of F.Va resulted only in the loss of its cofactor activity, but again, this is similar to that observed following inactivation by APC.

APA, Harvard, Vancouver, ISO, and other styles

3

Samis, John A., Marilyn Garrett, Reginald P. Manuel, Michael E. Nesheim, and Alan R. Giles. "Human Neutrophil Elastase Activates Human Factor V but Inactivates Thrombin-Activated Human Factor V." Blood 90, no. 3 (August 1, 1997): 1065–74. http://dx.doi.org/10.1182/blood.v90.3.1065.1065_1065_1074.

Full text

Abstract:

The effect of human neutrophil elastase (HNE) on human factor V (F.V) or α-thrombin–activated human factor V (F.Va) was studied in vitro by prothrombinase assays, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), and NH2 -terminal sequence analysis. Incubation of F.V (600 nmol/L) with HNE (2 nmol/L) in the presence of Ca2+ resulted in a time-dependent increase in its cofactor activity. In contrast, treatment of F.Va (600 nmol/L) with HNE (60 nmol/L) in the presence of Ca2+ resulted only in a time-dependent decrease in its cofactor activity. Under the conditions of these experiments, the maximum extent of F.V activation accomplished by incubation with HNE was approximately 65% to 70% of that observed with α-thrombin in presence of Ca2+. The extent of both the HNE-dependent enhancement in F.V cofactor activity and the HNE-dependent decrease in F.Va cofactor activity was not influenced by the addition of phosphatidylcholine/phosphatidylserine (PCPS) vesicles (50 μmol/L). The HNE-derived cleavage products of F.V, which correlated with increased cofactor activity, as demonstrated by SDS-PAGE under reducing conditions, were different from those generated using α-thrombin. Treatment of F.V (600 nmol/L) with HNE (2 nmol/L) in the presence of Ca2+ resulted in the production of three closely spaced doublets of: 99/97, 89/87, and 76/74 kD whose appearance over time correlated well with the increased cofactor activity as judged by densitometry. Treatment of F.Va (600 nmol/L) with HNE (60 nmol/L) in the presence of Ca2+ resulted in the cleavage of both the 96 kD heavy chain and the 74/72 kD light chain into products of: 56, 53, 35, 28, 22, and 12 kD. Although densitometry indicated that both the heavy and light chains of F.Va were hydrolyzed by HNE, cleavage of the 96 kD heavy chain was more extensive during the time period (10 to 30 minutes) of the greatest loss of F.Va cofactor activity. NH2 -terminal sequence analysis of F.V treated with HNE indicated cleavage at Ile819 and Ile1484 under conditions during which the procofactor expressed enhanced cofactor activity in the prothrombinase complex. NH2 -terminal sequence analysis of F.Va treated with HNE indicated cleavage at Ala341, Ile508, and Thr1767 under conditions, which the cofactor became inactivated, as measured by prothrombinase activity. The activation and inactivation cleavage sites are close to those cleaved by the physiological activator and inactivator of F.V and F.Va, namely α-thrombin (Arg709 and Arg1545) and Activated Protein C (APC) (Arg306 and Arg506), respectively. These results indicate that HNE can generate proteolytic products of F.V, which initially express significantly enhanced procoagulant cofactor activity similar to that observed following activation with α-thrombin. In contrast, HNE treatment of F.Va resulted only in the loss of its cofactor activity, but again, this is similar to that observed following inactivation by APC.

APA, Harvard, Vancouver, ISO, and other styles

4

van Wilgen, Brian W. "Introduction to John F.V. Phillips’ Article." Fire Ecology 8, no. 2 (August 2012): 1–2. http://dx.doi.org/10.4996/fireecology.0802001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Ng, Kimmie, Bruce W. Hollis, and Charles S. Fuchs. "Reply to F.V. Raimundo et al." Journal of Clinical Oncology 29, no. 24 (August 20, 2011): 3338–39. http://dx.doi.org/10.1200/jco.2011.36.6880.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ye, Sheng-Long. "Reply to F.V. Negri et al." Journal of Clinical Oncology 33, no. 28 (October 1, 2015): 3220–21. http://dx.doi.org/10.1200/jco.2015.62.5665.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

FUBINI, SERGIO. "VERTEX OPERATORS AND QUANTUM HALL EFFECT." Modern Physics Letters A 06, no. 04 (February 10, 1991): 347–58. http://dx.doi.org/10.1142/s0217732391000336.

Full text

Abstract:

F.V. vertex operator which allows a consistent bosonization of fermions, bosons and anyons is shown. It thus plays an essential role in the general theory of Fractional Quantum Hall Effect (F.Q.H.E.).

APA, Harvard, Vancouver, ISO, and other styles

8

Shadle, Christine H. "F.V. Hunt and my travels with fricative consonants." Journal of the Acoustical Society of America 142, no. 4 (October 2017): 2631. http://dx.doi.org/10.1121/1.5014634.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Kawamura, Hatsue. "TAKETORIMONOGATARI translated by F. V. Dickins." Historical English Studies in Japan, no. 26 (1993): 1–16. http://dx.doi.org/10.5024/jeigakushi.1994.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Reitbla, Abram. "Bulgarin and others. 3. F.V. Bulgarin’s Letters to Censors." Literary fact, no. 4 (June 2017): 172–201. http://dx.doi.org/10.22455/2541-8297-2017-4-172-201.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Dockal, Michael, Susanne Till, Zhenqing Zhang, Sabine Knappe, Sabrina Reutterer, Catherine Quinn, Christoph Redl, Hartmut J. Ehrlich, Friedrich Scheiflinger, and Christina Szabo. "Structure-Activity Relationship of Pro- and Anticoagulant Effects of Fucus Vesiculosus Fucoidan." Blood 120, no. 21 (November 16, 2012): 3353. http://dx.doi.org/10.1182/blood.v120.21.3353.3353.

Full text

Abstract:

Abstract Abstract 3353 Fucoidans are sulfated polysaccharides extracted from brown algae. Fucoidans have a wide variety of biological activities including pro- and anticoagulant activities, which occur at different concentration ranges. Therefore, fucoidans have also been described as non-anticoagulant sulfated polysaccharides (NASPs, Liu et al. Thromb Haemost 2006; 95:68). Fucoidans have complex structures due to their large molecular weight (Mw), wide Mw distribution, variable degree and pattern of sulfation, diverse monosaccharide composition, branching of the sugar chain and different monomer linkages. This structural complexity challenges identification of the components responsible for fucoidan activities. The aim of the presented study was to fractionate Fucus vesiculosus (F.v.) fucoidan by size and to de- and oversulfate it to obtain compounds of varying Mw or degree of sulfation (DS), respectively. The fucoidans were then to be analyzed for their pro-and anticoagulant activities and structure, and the effect of modified fucoidan on the target protein Tissue Factor Pathway Inhibitor (TFPI) investigated. Two approaches were applied to generate F.v. fucoidan with different structural properties to the original. Firstly, fucoidan was fractionated by size using ultrafiltration. The Mw of the resulting fractions ranged from 8–180 kD. NMR, elemental analysis and HPAEC showed that other structural features, such as sulfate content and monosaccharide composition, were similar to those of the original fucoidan. Thrombin generation (CAT) assays showed an EC50 for procoagulant activity of 0.3–3 μg/mL; aPTT increased by 50% at 4–25 μg/mL. Generally, higher Mw increased procoagulant activity. Below 15 kD, this activity was markedly reduced. The minimum active length of F.v. fucoidan was 70 carbohydrate units. De- and oversulfated F.v. fucoidans were used to investigate the impact of charge on pro- and anticoagulant activities. In the CAT assay, oversulfated fucoidans showed improved procoagulant activity with an EC50 of 0.09–0.12 μg/mL, while desulfated fucoidans demonstrated reduced procoagulant activity compared to the original. A DS of 0.5 was estimated to be the limit for procoagulant activity. Inhibition of TFPI by fucoidan was assessed with a dilute prothrombin time assay (dPT) with added full-length TFPI. TFPI-blocking activity was mainly dependent on the DS and less on the fucoidans' Mw. Interestingly, oversulfation also stimulated an undesired activation of the contact pathway. The presented study determined the minimal structural requirements for procoagulant activity of fucoidan molecules and identified features causing undesired biological effects. Disclosures: No relevant conflicts of interest to declare.

APA, Harvard, Vancouver, ISO, and other styles

12

Meshcheryakova, Arina. "The Features of Conservatism Patriotism: N.M. Karamzin and F.V. Rostopchin." Almanac “Essays on Conservatism”, no. 4 (January 1, 2016): 71–80. http://dx.doi.org/10.24030/2409-2517-2016-4-71-80.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

IWAKAMI, Haruko. "Dickins as a Japanologist : his Early Days in Yokohama." Historical English Studies in Japan 2008, no. 40 (2007): 55–68. http://dx.doi.org/10.5024/jeigakushi.2008.55.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Almazov, Mikhail. "F.V. Dubasov and the suppression of the December uprising in Moscow." Rossiiskaia istoriia, no. 1 (2020): 51–74. http://dx.doi.org/10.31857/s086956870008271-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Fleury, Romain. "The F.V. Hunt fellowship: A step toward research independence and leadership." Journal of the Acoustical Society of America 142, no. 4 (October 2017): 2635. http://dx.doi.org/10.1121/1.5014656.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

S.V., Kudin. "STUDIES IN THE COMPARATIVE HISTORY OF LAW IN THE WORKS OF F.V. TARANOVSKY." Juridical scientific and electronic journal 6 (2019): 33–36. http://dx.doi.org/10.32782/2524-0374/2019-6/5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Aramavičiiite, Vanda. "F.V.Foersterio etinių-pedagoginių idėjų esmė ir aktualumas." Acta Paedagogica Vilnensia 2 (January 17, 2016): 113–20. http://dx.doi.org/10.15388/actpaed.1993.02.9371.

Full text

Abstract:

Turit omenyje, kad pagrindinis mokyklos uždavinys yra visapusiškos asmenybės ugdymas, daugiau dėmesio turėtų būti skiriama doroviniam auklėjimui. Tam pasitarnauti gali ir vieno žymiausių dorovės pedagogų F.V. Foersterio idėjos, apie dorovės svarbą civilizacijos ir kultūros raidai, taip pat apie dorovinio auklėjimo vaidmenį. Foersteris dorovinį auklėjimą laikė religiniu, socialiniu ir psichologiniu reiškiniu. Aptardamas auklėjimo tikslus ir uždavinius, galimybes ir metodus, Foersteris ypač daug dėmesio skyrė charakterio formavimui, valios lavinimui, individualiam priėjimui prie vaiko, atsižvelgimui į lyties ypatumus, taip pat tikėjimui vaiku. Ypač tai aktualu auklėjant pedagogiškai apleistus, elgesio sutrikimų turinčius vaikus. Auklėtojo vaidmuo ne tik skatinti ir bausti, bet pirmiausiai akcentuoti pozityvius, sveikus vaiko palinkimus, vaizdžiai tariant, auklėtojas privalo įkvėpti vaikui drąsos ištraukti patį save iš purvo.

APA, Harvard, Vancouver, ISO, and other styles

18

Kaye, David. "International Law Commission: Draft Articles on State Responsibility." International Legal Materials 37, no. 2 (March 1998): 440–67. http://dx.doi.org/10.1017/s0020782900018350.

Full text

Abstract:

State responsibility has been on the agenda of the International Law Commission since its earliest days. Nearly fifty years ago, in 1949, the Commission identified state responsibility as one of fourteen topics in international law ready for codification. Only in 1956, however, did the Commission, with F.V. Garcia Amador as special rapporteur, begin in earnest its state responsibility codification project. Garcia Amador, whose work focused on the responsibility of states toward aliens on their territory, submitted a number of reports through 1961, but limited discussion was devoted to the topic. A review of the early history of the Commission's state responsibility project, as well as other efforts at codification of this area of law, may be found in the ILC's 1969 Yearbook

APA, Harvard, Vancouver, ISO, and other styles

19

Reitblat, Abram. "Bulgarin and others. 4. Unsuccessful Bulgarin (М.А. Bestuzhev-Ryumin and His Relations with F.V. Bulgarin)." Literary Fact, no. 6 (2017): 229–49. http://dx.doi.org/10.22455/2541-8297-2017-6-229-249.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Shapovalov, Vitaliy. "L.G. Alekseev, F.V. Potemkin, The Problems of Applied Psychophysiology, Buki Vedi, Moscow 2017, 302 pp." European Polygraph 11, no. 4 (December 1, 2017): 189–91. http://dx.doi.org/10.1515/ep-2017-0019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Ratnah, St, Alfrida Monica Salasa, and Ismail Ibrahim. "UJI POTENSI ANTIMIKROBA HASIL FRAKSINASI EKSTRAK DAUN KECOMBRANG (Etlingera elatior) TERHADAP Candida albicans PENYEBAB KEPUTIHAN PADA IBU HAMIL." Media Farmasi 14, no. 2 (October 25, 2018): 45. http://dx.doi.org/10.32382/mf.v14i2.595.

Full text

Abstract:

Tanaman Kecombrang memiliki kandungan kimia seperti alkaloid, flavonoid, polifenol,steroid, saponin, dan minyak atsiri, dimana kandungan kimia tersebut dapat berperan dalam pencegahan penyakit. Tujuan dari penelitian ini adalah untuk menentukan potensi antimikroba hasil fraksinasi ekstrak daun kecombrang terhadap Candida albicans penyebab keputihan pada ibu hamil. Penelitian ini merupakan eksperimen murni menggunakan ekstrak daun kecombrang, diisolasi menggunakan kromatografi kolom sehingga diperoleh fraksi-fraksi. Hasil fraksinasi selanjutnya diuji potensi antimikrobanya terhadap Candida albicans penyebab keputihan pada ibu hamil. Zona hambat yang diperoleh diukur untuk menentukan potensi antimikroba hasil fraksinasi ekstrak Daun Kecombrang tersebut. Hasil penelitian Daun Kecombrang (Etlingera elatior), dapat disimpulkan bahwa isolasi senyawa kimia ekstrak etanol Daun Kecombrang (Etlingera elatior) diperoleh 3 senyawa murni. Ketiga senyawa murni tersebut dapat menghambat Candida albicans, rata-rata diameter zona hambat dari senyawa A = 13,66 mm, senyawa C = 10,40 mm dan senyawa E = 9,33 mm. Hasil statistik one way anava menunjukkan bahwa fraksi A (F.A) memiliki potensi antimikroba yang berbeda dengan fraksi C (F.C) dan Fraksi E (F.E) (sig p < 0,05) sedangkan fraksi C (F.C) dan Fraksi E (F.E) memiliki potensi antimikroba yang sama (sig p > 0,05).

APA, Harvard, Vancouver, ISO, and other styles

22

Pyatnitsky, N. Yu. "To the evolution of the concept of «psychopathy» in Russian psychiatry: from F.V. Rybakov to T.I. Yudin." Zhurnal nevrologii i psikhiatrii im. S.S. Korsakova 120, no. 8 (2020): 90. http://dx.doi.org/10.17116/jnevro202012008190.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Draper, Arlen D. "Blueberry Breeding for the Southern United States." HortScience 32, no. 4 (July 1997): 597B—597. http://dx.doi.org/10.21273/hortsci.32.4.597b.

Full text

Abstract:

The USDA blueberry breeding program was initiated in 1910 by Dr. F.V. Coville and has been continuous since that time. Plant breeders Drs. G.M. Darrow, D.H. Scott, J.N. Moore, and A.D. Draper have worked with SAES and private growers to develop the majority of cultivars presently grown for commercial production. In the South, major cooperators with the USDA include SAES in Arkansas, North Carolina, Georgia, and Texas. Recently the USDA Station at Poplarville MS, has been instrumental in blueberry cultivar development for the South. Rabbiteye blueberry cultivars make up the majority of blueberry acreage grown in the region. A new type of blueberry, the southern highbush (SHB), has been developed by interspecific hybridization with various Vaccinium species. Late-blooming SHB cultivars have been developed that offer better protection from spring frosts and ripen earlier than the earliest rabbiteye blueberry. Genes required to meet future needs reside within native Vaccinium species. Progress has been made in plant adaptation, disease resistance, fruit quality, and season of ripening. There remains a need for greater plant vigor, insect resistance, and consistent production.

APA, Harvard, Vancouver, ISO, and other styles

24

Dockal, Michael, Susanne Till, Sabine Knappe, Hartmut J. Ehrlich, and Friedrich Scheiflinger. "Anticoagulant Activity and Mechanism of Non-Anticoagulant Sulfated Polysaccharides." Blood 118, no. 21 (November 18, 2011): 1208. http://dx.doi.org/10.1182/blood.v118.21.1208.1208.

Full text

Abstract:

Abstract Abstract 1208 Fucoidans are sulfated polysaccharides which are extracted from brown seaweeds and echinoderms and have a wide variety of biological activities. Described as non-anticoagulant polysaccharides (NASPs), they have been demonstrated to improve clotting in FVIII- and FIX-deficient plasma (Liu et al., 2006), making them good candidates for hemophilia treatment. However, fucoidans have also been extensively studied for their anticoagulant effects (Pereira et al., 1999), which usually occur at much higher concentrations than the procoagulant activity. This opens a large procoagulant window where procoagulant activities exceed anticoagulant effects. When analyzed by a global hemostatic thrombin generation assay in hemophilia plasma the onset of procoagulant activity is observed at concentrations as low as 0.01 μg/mL with optimal activity at about 1 μg/mL. Reversal of procoagulant activity is seen at concentrations higher than 10 μg/mL. Fucoidans and other sulfated polysaccharides activate different anticoagulant mechanisms depending on their structural properties. Branched fucoidans extracted from brown algae have been shown to directly inhibit thrombin, while linear fucoidan from echinoderms activates antithrombin III (ATIII) or heparin cofactor II (HCII)-mediated thrombin inhibition (Pereira et al., 1999). Sulfated galactans also have serpin-dependent and -independent anticoagulant activities (Glauser et al., 2009). In this study we analyzed fucoidans from several brown algae species for their anticoagulant properties and mode of action to identify the candidate with the best procoagulant and lowest anticoagulant activity. NASPs from several brown algae species including L. japonica (L.j.), F. vesiculosus (F.v.), and U. pinnatifida (U.p.) showed different anticoagulant activities in an activated partial thromboplastin time (aPTT) assay. U.p. fucoidan was about twice as anticoagulant as the other fucoidan preparations, increasing clotting time by 50% at a concentration of 4 μg/mL. In addition, NASPs were analyzed in ATIII- and HCII-thrombin model assays. L.j. fucoidan activated ATIII-mediated thrombin inhibition, whereas the other fucoidans showed no effect on ATIII. Fucoidans from L.j. and F.v. had a direct effect on thrombin, starting at about 10 μg/mL. By contrast, U.p. fucoidan did not directly affect thrombin. However, all preparations increased HCII-mediated thrombin inhibition at concentrations below 1 μg/mL. This suggests that HCII is the main target for the anticoagulant activity of fucoidans. Nevertheless, we observed substantial differences between the fucoidan candidates which will be correlated to structural properties. Our work describes the assessment of anticoagulant activities of a variety of fucoidan species to better understand their intertwined pro- and anticoagulant effects. This provides important mechanistic insights for the development of hemophilia therapies. Disclosures: Dockal: Baxter Innovations GmbH: Employment. Till:Baxter Innovations GmbH: Employment. Knappe:Baxter Innovations GmbH: Employment. Ehrlich:Baxter Innovations GmbH: Employment. Scheiflinger:Baxter BioScience: Employment.

APA, Harvard, Vancouver, ISO, and other styles

25

Féry-Hue, Françoise. "Une version réécrite du chapitre minéralogique de Sidrac (conservée dans le manuscrit Londres, British Library, Royal 16.F.V, f. 110rb-113vb)." Scriptorium 60, no. 1 (2006): 124–46. http://dx.doi.org/10.3406/scrip.2006.3924.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Bogumil, T. A. "SIBERIA AS AN ANTI-UTOPIA IN A.V. RUBANOV’S DILOGY “CHLOROPHYLIA” AND “LIVING EARTH”." Siberian Philological Forum 12, no. 4 (November 30, 2020): 64–77. http://dx.doi.org/10.25146/2587-7844-2020-12-4-65.

Full text

Abstract:

Statement of the problem. The main focus of the article is on the problem of interaction between space (Siberia) and culture (utopian tradition) that constitutes the range of interests for researchers of a Siberian text, in a broader sense, of any local text, as well as for representatives of geocultural and geopoetic approaches. The objectives of this study are to identify works in which (anti) utopia is geographically localized in Siberia, with the exception of the already sufficiently studied topic of Belovodye; to characterize the functions of the Siberian locus in the artistic world of A.V. Rubanov’s dilogy “Chlorophylia” and “Living Earth”. Research results. As a result, a line of succession of the utopian tradition was outlined: from F.V. Bulgarin through A.K. Gastev to the novels of A.V. Rubanov. Conclusions. It was revealed that in A. Rubanov’s dilogy the space of Siberia consistently changes its functions: it exists in opposition to Moscow, to the center and the synecdoche of Russia; it is a colony and a condition for the existence of the Moscow utopia; it is a place of exile and post-apocalyptic “savagery” as the basis of a potential revival; it is a proper utopian city, an alternative capital.

APA, Harvard, Vancouver, ISO, and other styles

27

Jiang, Cong, Sabine Knappe, Sabrina Reutterer, Christina Szabo, Michael Dockal, Zhenqing Zhang, Susanne Till, and Friedrich Scheiflinger. "Structure-activity relationship of the pro- and anticoagulant effects of Fucus vesiculosus fucoidan." Thrombosis and Haemostasis 111, no. 03 (2014): 429–37. http://dx.doi.org/10.1160/th13-08-0635.

Full text

Abstract:

SummaryFucoidan is a highly complex sulfated polysaccharide commonly extracted from brown seaweed. In addition to their many biological activities, fucoidans have recently been demonstrated to inhibit or increase coagulation at different concentration ranges. Their structural features, i.e. molecular weight (Mw), Mw distribution, degree of sulfation, monosaccharide composition, and different linkages, are known to affect these activities. Therefore, structure-activity relationship (SAR) analysis of fucoidan is crucial for its potential use as a procoagulant. In this study, Fucus vesiculosus (F.v.) fucoidan was fractionated by charge and size as well as over- and desulfated to different degrees to yield preparations with various structural properties. The fractions’ pro- and anticoagulant activities were assessed by calibrated automated thrombography (CAT) and activated partial thromboplastin time (aPTT) assays. Binding to and inhibition of the anticoagulant protein tissue factor pathway inhibitor (TFPI) and the ability to activate coagulation via the contact pathway were also investigated. This paper discusses the impact of charge density, size, and sugar composition on fucoidan’s pro- and anticoagulant activities. Fucoidan requires a minimal charge density of 0.5 sulfates per sugar unit and a size of 70 sugar units to demonstrate desired procoagulant activities for improvement of haemostasis in factor VIII/factor IX-deficient plasma.

APA, Harvard, Vancouver, ISO, and other styles

28

Ishchenko, Tatyana, Aleksey Platonov, Ekaterina Kantieva, Larisa Belchinskaya, Tamara Storodubtseva, and Alexey Maksimenkov. "FOUNDERS OF THE FORESTRY ENGINEERING SCIENTIFIC SCHOOL." Forestry Engineering Journal 10, no. 4 (January 19, 2021): 46–62. http://dx.doi.org/10.34220/issn.2222-7962/2020.4/4.

Full text

Abstract:

The article provides brief information from the life and scientific work of the founders of the Faculty of Forestry Engineering and the Faculty of Woodprocessing Technology (currently the Faculty of Forestry Industry). 2020 marks the 90th anniversary of the establishment of Voronezh University of Forestry and Technologies. Celebrating the 90th anniversary of the existence of the university, it would be fair to recall the names of the scientists who stood at the origins of the forest engineering faculty and the faculty of woodprocessing technology. Many generations of scientists have been involved in the organization and development of faculties, who have made a significant contribution to the development of the forest complex of Russia. They are widely known not only in our country, but also abroad. These are: V.K. Kuryanov, V.I. Kharchevnikov, F.V. Posharnikov, V.P. Zhukov, A.A. Filonov, P.N. Khukhryansky, T.K. Kuryanova, N.I. Popova, L.I. Belchinskaya. This publication provides information from the life of the scientists who stood at the origins of the creation and development of the scientific authority of Voronezh Forestry School. A number of information about the life and work of these outstanding researchers was borrowed by the authors from the sources cited, and some data were supplemented by personal memories of people with whom the authors communicated

APA, Harvard, Vancouver, ISO, and other styles

29

Bury, Benjamin. "An Introduction to the Hebrew Bible - A Thematic Approach - By Sandra L. Gravett, Karla G. Bohmbach, F.V. Greifenhagen and Donald C. Polaski." Reviews in Religion & Theology 17, no. 3 (June 28, 2010): 273–76. http://dx.doi.org/10.1111/j.1467-9418.2010.00549.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Komblas, Κ. Ν., P. Tsakonas, M. Lysandrou, and Τ. Κ. Elia. "Control of insect pests on fruit and field crops with hexaflumuron in North Greece." ENTOMOLOGIA HELLENICA 7 (May 31, 2017): 35. http://dx.doi.org/10.12681/eh.13967.

Full text

Abstract:

Experiments with hexaflumuron have been made against pests on apples, pears, peaches, potatoes and maize. On apples a predefined spray program was used for the combined control of Cydia pomonella (L) (Lepidoptera: Tortricidae), Phyllonorycter blancardella. (Fabr.) (Lepidoptera: Gracillariidae), P. corylifoliella (Hbn) (Lepidoptera: Gracillariidae), Leucoptera scitella (Zell.) (Lepidoptera: Lyonetiidae) and Adoxophyes orana (F.v. Roslerstamm) (Lepidoptera: Tortricidae). Sprays started when C. pomonella adults appeared and were continued every 2, 3 and 4 weeks. Against Cacopsylla pyri L. (Homoptera: Psyllidae), Anarsia lineatella Zell. (Lepidoptera: Gelechiidae) and Grapholitha molesta (Busck) (Lepidoptera: Tortricidae), trials were made to define efficacy and timing, while trials on Leptinotarsa decendineata (Say) (Coleoptera: Chrysomelidae) and Sesamia nonagrioides Lef. (Lepidoptera: Noctuidae) were only for efficacy. Hexaflumuron promised to be an excellent insecticide since it was at least as good as organophosphate standards, amitraz and the benzoylphenyl ureas (BPU) tested. With fewer sprays it gave seasonal and combined control on apple pests. It is a new BPU insecticide with low mammalian toxicity and fits IPM programs, since its toxicity to predators and parasites is low. Hexaflumuron had no effect on adults of the predator Coccinella septempunctata L. (Coleoptera: Coccinelidae) in the potato trial. Sprays must start at the beginning of the oviposition of fruit damaging pests and at the egg or early larva-nymph stage of the foliage damaging pests. The spray must fully cover fruit and foliage.

APA, Harvard, Vancouver, ISO, and other styles

31

Jakovljević, Dragan. "Die Möglichkeiten moderner apologetischer Lösungen des Theodizeeproblems – Dargestellt und betrachtet anhand des Lösungsversuchs von F.v. Kutschera, sowie einer Anregung von J. S. Mill." Neue Zeitschrift für Systematische Theologie und Religionsphilosophie 63, no. 2 (June 1, 2021): 125–44. http://dx.doi.org/10.1515/nzsth-2021-0008.

Full text

Abstract:

Zusammenfassung In diesem Aufsatz wird zunächst das klassische Theodizee-problem dargelegt und eine Typologie seiner möglichen Lösungsarten (apologetische Konzeptionen, Atheismus, begriffliche Modifikationen an der Gottesvorstellung, Agnostizismus) entworfen. Nach einer zusammenfassenden Erörterung dieser Strategien wendet sich der Verfasser einer reizvollen, bislang kaum beachteten Stellungnahme von J. S. Mill zu, die er dann innerhalb der weiteren Ausführungen zu berücksichtigen sucht. Im zweiten Teil des Aufsatzes wird die apologetische Lösung der Theodizee durch F. v. Kutschera systematisch rekonstruiert und kritisch beleuchtet. Diese Lösung hebt hervor, der letzte Sinn des Leidens sei zwar für uns nicht erfassbar, wir könnten aber im Vertrauen auf die Vorsehung Gottes annehmen und uns im Rahmen der Gemeinschaft mit Gott darauf verlassen, dass Heilsgeschichte zugleich Leidensgeschichte sei. Hierbei sollen wir im Glauben mit Gott den Weg zueinander gehen – wohin er auch führt. Nach einer partiellen Infragestellung dieser Lösung, stellt der Verfasser die Frage, ob unser Vertrauen zu Gott unter allen denkbaren Umständen bedingungslos bleiben sollte. Dabei wird auf die Risiken eines blinden und fanatischen Glaubens hingewiesen. Demgegenüber wird das Bedürfnis danach bejaht, unseren Glauben doch an die positiven Aussichten für die Erfüllung gewisser menschlicher Fundamentalerwartungen (keine Vernichtung von Menschheit sowie anderer Lebewesen, kein sinnloser und umfassender Weltuntergang, die Anerkennung und Bewahrung der Schöpfung etc.) zu binden.

APA, Harvard, Vancouver, ISO, and other styles

32

Dockal, Michael, Werner Hoellriegl, Zhenqing Zhang, Susanne Till, Sabine Knappe, Michael Palige, Alexandra Schiviz, et al. "Structural and Functional Characterization of Fucoidan and Its Procoagulant Effect in An Ex Vivo Model of Factor VIII-Inhibited Guinea Pigs." Blood 118, no. 21 (November 18, 2011): 2262. http://dx.doi.org/10.1182/blood.v118.21.2262.2262.

Full text

Abstract:

Abstract Abstract 2262 Fucoidans are sulfated polysaccharides extracted and purified from brown seaweeds. Described as non-anticoagulant polysaccharides (NASPs), they have been shown to improve clotting in FVIII- and FIX-deficient plasma (Liu et al. Thromb Haemost 2006;95:68), making them good candidates for hemophilia treatment. NASP orally administered to hemophilia A dogs over several weeks resulted in correction to normal ranges in thromboelastography (TEG) parameters and improvement of the cuticle bleeding time (Prasad et al. Blood 2008;111:672). We screened extracts of eleven brown algae species to select the most active, high-quality, homogeneous fucoidan. In-depth structural analysis and assessment of the pro-/anticoagulant and TFPI-inhibiting activities of a selected set of fucoidan preparations was performed. The effect of the best fucoidan candidate was studied in a novel guinea pig model by whole blood TEG monitoring supported by calibrated automated thrombographic (CAT) analysis. Comparative structural studies of fucoidans included monosaccharide composition and elemental analysis, molecular weight and overall structural determination by NMR. 13C-NMR spectroscopy gave a comprehensive picture of fucoidan structure including fucose and alginate content and the relative heterogeneity of the preparation distinguishing between fucoidans of different algae species. Heterogeneity of the materials was highest in U. pinnatifida and L. japonica and lowest in F. vesiculosus (F.v.) samples. Procoagualant activity was shown by CAT and rotation thromboelastometry. Clotting parameters of FVIII-inhibited human blood or plasma were corrected to normal levels at 1 and 3 μg/mL depending on the fucoidan. In addition, the fucoidans were analyzed by BiaCore and a modified dilute prothrombin time assay to show binding to TFPI and inhibition of full-length TFPI activity. The screening process supported the identification and optimization of new fucoidan-specific analytical methods. Furthermore, a CAT protocol optimized for guinea pig plasma was used to show the procoagulant effect of the overall best fucoidan candidate. We spiked F.v. fucoidan into FVIII-inhibited guinea pig plasma between 1 and 100μg/mL and triggered thrombin generation with low amounts of tissue factor. The FVIII-inhibited guinea pig plasma was corrected to normal CAT parameters at ∼30μg/mL NASP. Based on our findings in the CAT assay, we designed a dosage pattern for studying the procoagulant effect using TEG in FVIII-inhibited Dunkin Hartley guinea pigs (n=10) after intravenous administration of 0.1 to 1.6mg/kg NASP. The primary endpoint assessed was R-time (time to clotting). FVIII-inhibited guinea pigs showed a median R-time of ≥120min (no clotting), while R-time was reduced in a non-linear dose-dependent manner after administration of NASP down to 69min (0.4mg/kg NASP). Thus, the results generated in in vitro tests, were confirmed in vivo. This new animal model of induced hemophilia will support the development of alternative hemophilia therapeutics. Disclosures: Dockal: Baxter Innovations GmbH: Employment. Hoellriegl:Baxter Innovations GmbH: Employment. Zhang:Baxter Healthcare Corporation: Employment. Till:Baxter Innovations GmbH: Employment. Knappe:Baxter Innovations GmbH: Employment. Palige:Baxter Innovations GmbH: Employment. Schiviz:Baxter Innovations GmbH: Employment. Ehrlich:Baxter Innovations GmbH: Employment. Szabo:Baxter Healthcare Corporation: Employment. Muchitsch:Baxter Innovations GmbH: Employment. Scheiflinger:Baxter Innovations GmbH: Employment.

APA, Harvard, Vancouver, ISO, and other styles

33

Surnina, I. A. "ROLE OF THE PERIODICALS IN THE SOCIO-ECONOMIC TRANSFORMATION IN RUSSIA, 1857–1861 (“ECONOMICHESKIY UKAZATEL” OF V.I. VERNADSKY AND “VESTNIK PROMYSHLENNOSTI” OF F.V. CHIZHOV)." RUDN Journal of Studies in Literature and Journalism 22, no. 1 (2017): 156–66. http://dx.doi.org/10.22363/2312-9220-2017-22-1-156-166.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Ugryumova, M. V., and M. V. Fomenko. "Documenting the prevention and struggle of the Moscow zemstvo with cholera in the second half of the XIX – early XX centuries." Bulletin of Nizhnevartovsk State University, no. 4 (December 20, 2020): 111–20. http://dx.doi.org/10.36906/2311-4444/20-4/14.

Full text

Abstract:

Based on the analysis of archival materials and periodical zemstvo publications, the process of documenting the work of zemstvo institutions in the Moscow province in the prevention and control of cholera epidemics in the second half of the XIX early XX centuries is studied, and documents on the activities of individual County zemstvos are considered. Various groups of archival documents from the collections of the Central state archive of Moscow are analyzed, which comprehensively reveal the difficulties of fighting and preventive measures aimed at preserving the health of the population of the Moscow province in the second half of the XIX century at the beginning of the twentieth century: minutes of meetings of zemstvo assemblies, divisions of the zemstvo responsible for fighting epidemics (first of all, the Sanitary Bureau of the Moscow zemstvo), acts of inspections of the rural population, memoirs of zemstvo doctors, epistolary documents (memories are of primary importance, including personal records of the Governor F.V. Dzhunkovsky, the head of the Moscow zemstvo sanitary Bureau P.I. Kurkin). The results of the formation and development of documentation support for Moscow zemstvo epidemiological medicine in the system of General national health care, aimed at comprehensive protection of public health, its protection and preservation, are summarized. Stressed the paramount importance of the collection of the Moscow provincial Council and district zemstvo in Moscow province, deposited in Central state archive of Moscow, to recreate a complete picture of the formation and development of zemstvo medicine in the Moscow province.

APA, Harvard, Vancouver, ISO, and other styles

35

Bourouhou, Imane, and Farida Salmoun. "A study on the bacteriological characterization of the coastal Tangier seawater: Preliminary results." E3S Web of Conferences 234 (2021): 00014. http://dx.doi.org/10.1051/e3sconf/202123400014.

Full text

Abstract:

This paper deals, on the one hand, with a study of bacteriological parameters of coastal water in the region of Tangier Ksar-Sghir, north of Morocco, and secondly, with an examination of the influence of temperature parameter on biological processes occurring within seawater. The bacteriological study concerns E. coli, fecal coliforms (F.C), total coliforms (T.C) and fecal streptococcus (F.S). A campaign of 25 sampling points spread over four layers of concentration was conducted in the coastal line during the year of 2017 and The overall results of tests were obtained using the Principal Component Analysis method. (PCA). The analysis has highlighted differentiated areas in term of sanitary quality. The highest values obtained were in the zone of Tangier-Med port showing high fecal contamination by pollution indicator bacteria (T.C, F.C, E. coli and F.S) with high temperature values that result in short-, medium- and long-term environmental pollution.

APA, Harvard, Vancouver, ISO, and other styles

36

Gao, Yun-Dong, and Xin-Fen Gao. "Taxonomic notes on Chinese Lilium L. (Liliaceae) with proposal of three nomenclatural revisions." Phytotaxa 172, no. 2 (June 13, 2014): 101. http://dx.doi.org/10.11646/phytotaxa.172.2.5.

Full text

Abstract:

In this revision, we treat Lilium wenshanense L.J. Peng & F.X. Li, L. jinfushanense L.J. Peng & B.N. Wang and L. huidongense J.M. Xu from China as synonyms of L. brownii F.E. Brown ex Miellez, L. taliense Franchet and L. lijiangense L.J. Peng, respectively. We justify the synonymy by demonstrating the existence of continuous morphological variation, which we observed in the field and among herbarium specimens.

APA, Harvard, Vancouver, ISO, and other styles

37

Shuhaimi-Othman, M., Y. Nadzifah, R. Nur-Amalina, and N. S. Umirah. "Deriving Freshwater Quality Criteria for Iron, Lead, Nickel, and Zinc for Protection of Aquatic Life in Malaysia." Scientific World Journal 2012 (2012): 1–7. http://dx.doi.org/10.1100/2012/861576.

Full text

Abstract:

Freshwater quality criteria for iron (Fe), lead (Pb), nickel (Ni), and zinc (Zn) were developed with particular reference to aquatic biota in Malaysia, and based on USEPA’s guidelines. Acute toxicity tests were performed on eight different freshwater domestic species in Malaysia which wereMacrobrachium lanchesteri(prawn), two fish:Poecilia reticulataandRasbora sumatrana, Melanoides tuberculata(snail),Stenocypris major(ostracod),Chironomus javanus(midge larvae),Nais elinguis(annelid), andDuttaphrynus melanostictus(tadpole) to determine 96 h LC50values for Fe, Pb, Ni, and Zn. The final acute value (FAV) for Fe, Pb, Ni, and Zn were 74.5, 17.0, 165, and 304.9 μg L−1, respectively. Using an estimated acute-to-chronic ratio (ACR) of 8.3, the value for final chronic value (FCV) was derived. Based on FAV and FCV, a criterion maximum concentration (CMC) and a criterion continuous concentration (CCC) for Fe, Pb, Ni, and Zn that are 37.2, 8.5, 82.5, and 152.4 μg L−1and 9.0, 2.0, 19.9, and 36.7 μg L−1, respectively, were derived. The results of this study provide useful data for deriving national or local water quality criteria for Fe, Pb, Ni, and Zn based on aquatic biota in Malaysia. Based on LC50values, this study indicated thatN. elinguis, M. lanchesteri, N. elinguis,andR. sumatranawere the most sensitive to Fe, Pb, Ni, and Zn, respectively.

APA, Harvard, Vancouver, ISO, and other styles

38

Gavrilov, Konstantin, Aleksandr Otcherednoy, and Gennady Khlopachev. "Cultural Geography of the Paleolithic of the East European Plain: from the Micoquian to the Epigravettian. Conference — field workshop to the 100th anniversary of the birth of F.V. Zaverniaev." Camera Praehistorica 2, no. 3 (December 2019): 156–57. http://dx.doi.org/10.31250/2658-3828-2019-2-156-157.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Ferreira, Krysna Stephanny de Morais, and Carlos Eduardo de Mattos Bicudo. "Criptógamos do Parque Estadual das Fontes do Ipiranga, São Paulo, SP. Algae, 42: Bacillariophyceae (Surirellales)." Hoehnea 44, no. 1 (March 2017): 10–28. http://dx.doi.org/10.1590/2236-8906-34/2016.

Full text

Abstract:

RESUMO O levantamento florístico das Surirellales (Bacillariophyceae) do PEFI, Parque Estadual das Fontes do Ipiranga, São Paulo, SP, Brasil resultou da análise de 28 unidades amostrais. As amostras planctônicas foram coletadas com auxílio de rede de plâncton e as de perifíton pela raspagem de substratos duros ou coleta de macrófitas aquáticas submersas. O material foi oxidado e analisado aos microscópios de luz. Dois gêneros e 15 espécies foram identificados, dos quais nove são novas citações para o PEFI e são: Stenopterobia delicatissima (F.W. Lewis) L.A. Brébisson ex H. van Heurck, S. pelagica F. Hustedt, S. planctonica D. Metzeltin & H. Lange-Bertalot, S. curvula (W. Smith) K. Kramer, Surirella angusta F.T. Kützing, S. guatimalensis C.G. Ehrenberg, S. stalagma M.H. Hohn & J. Hellerman, S. splendida (C.G. Ehrenberg) F.T. Kützing e S. tenera W. Gregory.

APA, Harvard, Vancouver, ISO, and other styles

40

Panzer, B. "Mareš, F.V.: Diachronische Phonologie des Ur- und Frühslavischen. Hrsg. und redigiert v. A. Bergermayer und G. Holzer. Mit zwei von H. Vintr aus dem Tschechischen übersetzten sowie drei weiteren Aufsätzen." Kratylos 47, no. 1 (2002): 199–200. http://dx.doi.org/10.29091/kratylos/2002/1/43.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Olivera, Guido F. "La cuestion cubana en la OEA y la crisis del Sistema Interamericano. By F.V. Garcia Amador. Miami: University of Miami, Graduate School of International Studies, 1987. Pp. v, 138 (paper)." International Journal of Legal Information 16, no. 3 (1988): 232. http://dx.doi.org/10.1017/s0731126500022526.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Harbar, Olha, and Maiia Kostiuk. "SCIENTIFIC RESEARCH ON AGRICULTURE IN UMAN AGRICULTURAL INSTITUTE (END OF THE XIXth –THE SECOND HALF OF THE XXth CENTURY): DEVOTED TO ITS 175th ANNIVERSARY." Journal of Ukrainian History, no. 40 (2019): 92–102. http://dx.doi.org/10.17721/2522-4611.2019.40.12.

Full text

Abstract:

The article presents the historical and scientific analysis of the process of formation and development of scientific research on agriculture at Uman Agricultural Institute in the historical context. It was established that scientific research on agriculture dates back to 1868, when the Main School of Horticulture was reorganized in the Uman College of Agriculture and Horticulture. It was found that the first studies on soil cultivation and fertilization were conducted in the period from 1886-1912 by Professor M.K. Vasyliev. In 1912 Professor M.K. Vasyliev published the first Ukrainian textbook on plant growing and forestry called «Private agriculture or the study of field and meadow crops». It was established that the activity of V.V. Pashkevych at Uman School contributed to the further development of fruit and ornamental horticulture and viticulture in the Russian Empire, and later in Ukraine. It is noted that S.M. Vukolov, while working at Uman School of Horticulture and Agriculture, for the first time first organized teaching of vegetable growing on a scientific basis. It is emphasized that P.G. Shytt was the first school teacher who began to study the root system and nutrition of the fruit trees, the patterns of growth and cycling of their ontogenetic development. Great attention is paid to the exploratory works of Professor F.V. Zamorskyi, who, on the basis of the study of content and species composition of weeds in rye and wheat seeds, proposed wholly justified measures of weed control. It has been established that the personal contribution of the scientists and teachers of Uman School to the formation of scientific principles of agriculture is undoubtedly significant and contributes to the provision of high and stable crops of agricultural products. Particular attention is paid to the main scientific achievement of the prominent scientist-agronomist – Professor S.S. Rubin in horticulture and field agriculture. It was investigated that the main directions of his scientific and research work were: soil maintenance and fertilization in fruit plantations, crop rotation and soil cultivation under field crops.

APA, Harvard, Vancouver, ISO, and other styles

43

Voronchuk, Nazariy, Kateryna Bovsunovska, Alexander Davydko, Mykola Lynnyk, Oleksandr Мatviichuck, Andrii Pavlov, and Ievgen Nastenko. "Segmentation of Tuberculosis Lungs on Computer Tomography Images." Innovative Biosystems and Bioengineering 5, no. 2 (June 29, 2021): 117–24. http://dx.doi.org/10.20535/ibb.2021.5.2.233051.

Full text

Abstract:

Background. Tuberculosis is a chronic lung disease that occurs due to a bacterial infection and is one of the top ten causes of human death. As part of the automated diagnostic system, the detecting tuberculosis lesions on computed tomograms of the lungs in automatic mode is an urgent task. Objective. We are aimed to solve the lungs segmentation tuberculosis-affected areas problem on computer tomograms using digital image processing based on U-networks. Methods. The data for training the network were provided by the specialists of National Institute of Phthisiology and Pulmonology named after F.V. Yanovsky, NAMS of Ukraine. We performed the image segmentation by applying artificial intelligence using the convolutional neural network UNet, which has been developed for medical segmentation tasks. We considered three versions of UNet networks with different parameter values. A feature of U-Net is the absence of fully connected layers. This network is an example of an encoder-decoder architecture, which shows high results in problems of semantic image segmentation. In the last two models, we applied the technique of early stopping of training which avoids the effect of overfitting the network. The number of training epochs is set with a margin, and the process of training network parameters stops as soon as the model performance stops improving on the test data set. Results. The data set was divided into 320 samples (80%) for training, 40 samples (10%) for testing, and 40 samples (10%) for the exam. The effectiveness of the developed models was evaluated by the parameters: Precision, Recall, and Matthews correlation coefficient. The final model provides high performance on the exam, such as accuracy of 0.82, sensitivity of 0.75, Matthews correlation coefficient of 78%. Conclusions. The conducted studies using the UNet network allowed us to obtain high results for the segmentation of tuberculosis lesions on computed tomography images. The proposed network will be used in the further development of diagnostic systems for tuberculosis.

APA, Harvard, Vancouver, ISO, and other styles

44

I, D. Arya, Sharma Sudhir Chauhan Sudhir, and Arya Sarita. "Micropropagation of superior eucalyptus hybrids FRI-5 (Eucalyptus camaldulensis Dehn x E. tereticornis Sm) and FRI-14(Eucalyptus torelliana F.V. Muell x E. citriodora Hook): A commercial multiplication and field evaluation." African Journal of Biotechnology 8, no. 21 (November 2, 2009): 5718–26. http://dx.doi.org/10.5897/ajb09.822.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Razali, Mohd Najib, Amira Ermafiqka Anuar, Musfafikri Musa, and Najmuddin Mohd Ramli. "Remediation of Oil and Gas Sewage Effluents Using Physical Treatments." Journal of Chemical Engineering and Industrial Biotechnology 6, no. 1 (September 17, 2020): 12–19. http://dx.doi.org/10.15282/jceib.v6i1.4417.

Full text

Abstract:

The industrial effluents from the oil and gas industry contain harmful contaminants that bring detrimental effects to the aquatic life and human population. The primary concerns are the high value of Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), turbidity and heavy metal content such as ferum and copper in the effluents, which did not comply with the Environmental Quality Act (1974) Industrial Effluent (Regulations) 2009 of Malaysian Department of Environment (DOE). This research aims to study the efficiency of natural bio-coagulants in treating the industrial effluent from the oil and gas industry. The industrial effluent sample was treated by using two natural biocoagulants F.A and F.B and three commercial treatment agents (bio-solvent, alum, and poly aluminium chloride (PAC)). Different beakers consisting of 7.5 wt% of each agent were added into 1.5 L of wastewater sample and left for a week without mechanical assistance. For the second stage, only F.A and alum were used during the experiment. By using five different weight percentages: 2.5%, 5.0%, 7.5%, 10.0%, and 12.5%, the treatment agents were added into 100 ml of wastewater and left for a week without any mechanical assistance. Then, the samples were analyzed for each of the five parameters. The results showed F.A is the best agent in COD treatment, with 41% reduction; followed by alum with 36%, PAC with 26% and bio-solvent with 22% reduction, respectively. The obtained results also showed that F.A and alum are at optimum performances at 7.5 wt%. The F.A and alum efficiency are deteriorating when the dosage is below and above 7.5 wt%.

APA, Harvard, Vancouver, ISO, and other styles

46

Payevsky, V. A. "Contribution of Russian zoologists to the collecting and first descriptions of the World avian fauna." Proceedings of the Zoological Institute RAS 322, no. 2 (June 25, 2018): 144–59. http://dx.doi.org/10.31610/trudyzin/2018.322.2.144.

Full text

Abstract:

A brief overview is given of the formation of museum collections of birds in Russia, collected as a result of academic expeditions around the world and across Russia. The imperishable value of zoological collections, concentrated in zoological museums and institutes, is underlined. The results of expeditions are described in chronology, beginning with 18th century (they were conducted under the auspices of the Russian Academy of Sciences and the Imperial Russian Geographical Society): the First Siberian expedition (D.G. Messershmidt), the First Kamchatka and the Great Northern expeditions (V.I. Bering, А.I. Chirikov, G.F. Müller, G.V. Stöller, I.G. Gmelin, S.P. Krasheninnikov), Great academic expeditions across Russia (P.S. Pallas, S.G. Gmelin, I.A. Güldenstädt, I.I. Lepyokhin, I.P. Falk, I.G. Georgi), round-the-world sea expeditions (I.F. Kruzenshtern and Yu.F. Lisyansky, F.F. Bellingshausen and M.P. Lazarev, F.G. Kittlitz and A.K. Mertens), as well as expeditions to Brazil (G. I. Langsdorf and E.P. Menetries) and expedition of I.G. Voznesensky in Russian America, the Commanders and Kamchatka. Reference is made to the importance of zoological expeditions of K.F. von Baer, A.F. Middendorf, G.I. Radde, N.A. Severtsov, M.N. Bogdanov, G.E. and M.E. Grumm-Grzhimailo. Particular attention is paid to the great Asian campaigns to Central Asia in the late XIX – early XX century of NM. Przevalsky, V.I. Roborovsky, P.K. Kozlov, G.N. Potanin, M.V. Pevtsov, B.L. Grombchevsky, M.A. Pyltsov and N.A. Zarudny. The contribution of the ornithologists of Russia M.N.Bogdanov, M.M. Berezovsky, M.A. Menzbir, V.L. Bianchi, F.D. Pleske, V.I. Dybowski, V.A. Godlewski, M.I. Jankowski, V.K. Taczanowski, P.P. Sushkin and S.A. Buturlin to the bird systematics at the end of the 19th century and the beginning of XX century is described. In conclusion, it is said about the unique value of zoological collections for the study of taxonomy and phylogeny, including on the basis of molecular genetic studies.

APA, Harvard, Vancouver, ISO, and other styles

47

Тишкина, Т. В. "The Need to Preserve the Memory of F.V. Gebler, a Researcher of Altai and One of the Founders of the Barnaul Museum (Based on the Materials of Local Lore Organizations in the 1920s)." Izvestiya of Altai State University Journal, no. 2(100) (June 8, 2018): 140. http://dx.doi.org/10.14258/izvasu(2018)2-24.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Journal, Baghdad Science. "Effect of Waste Water Bacteria and some chemical properties on drinking Water in AL-Mada,in Treatment Plan Station." Baghdad Science Journal 8, no. 1 (March 6, 2011): 35–38. http://dx.doi.org/10.21123/bsj.8.1.35-38.

Full text

Abstract:

Three stations were chosen on the water treatment plan of al- madaan .The Samples collected from the (Raw water) and the Sedimentation, filtration and storage water and the drinking water of outlet. Coliform densities T.S and F.C and TS and F.S and total bacterial count as bacteriological pollution indicators, as moste probable number (MPN) method was studied in test. Also some of the chemical characteristics of the water like pH , total suspended solid T.S.S, T.D.D.and S04 , T.Hardness , Ca++ , Mg++ . From the results it were indicated . The study showed the drinking water of outlet (distriputed in system) was agree with WHO criteria and Iraqi limits standards .

APA, Harvard, Vancouver, ISO, and other styles

49

MEYER, FABRÍCIO SCHMITZ, and FERNANDO BITTENCOURT DE MATOS. "The recognition of Tibouchina setosociliata Cogn. (Melastomataceae, Melastomeae) and its transfer to Pleroma D. Don." Phytotaxa 305, no. 3 (April 28, 2017): 201. http://dx.doi.org/10.11646/phytotaxa.305.3.7.

Full text

Abstract:

Pleroma setosociliatum (Cogn.) F.S. Mey. & F.B. Matos, from the states of Paraná and Santa Catarina, Brazil, has been indicated, still as a name in Tibouchina, as a synonym of T. dubia (Cham.) Cogn. on several floras and electronic databases. However, field observations and a more detailed analysis of herbarium specimens, including the types, led to the conclusion that these two species are distinct. They differ from each other not only in geographic distribuition, but also in growth habit, leaf size, indument, and dimensions of the connectives on antesepalous stamens. Tibouchina setosociliata is here transferred to Pleroma on the basis of morphology and results of a previously published molecular phylogeny.

APA, Harvard, Vancouver, ISO, and other styles

50

Gonzalez, Victor H. "Recent fieldguides to neotropical stingless bees." Journal of Melittology, no. 40 (November 11, 2014): 1. http://dx.doi.org/10.17161/jom.v0i40.4818.

Full text

Abstract:

Book review of:Oliveira, F.F., de, B.T.T. Richers, J.R. da Silva, R.C. Farias, & T.A. de Lima Matos. 2013. Guia Ilustrado das Abelhas “Sem-Ferrão” das Reservas Amanã e Mamirauá, Amazonas, Brasil (Hymenoptera, Apidae, Meliponini). IDSM [Instituto de Desenvolvimento Sustentável Mamirauá]; Tefé, Brazil; 267 pp. ISBN 978-85-88758-27-8 [paperback].Giraldo, C., A. Rodríguez, F.J. Chamorro, D. Obregón, P. Montoya, N. Ramírez, V. Solarte, & G. Nates-Parra. 2011. Guía Ilustrada de Polen y Plantas Nativas Visitadas por Abejas: Cundinamarca, Boyacá, Santander, Sucre, Atlántico y Sierra Nevada de Santa Marta, Colombia. Unibiblos, Universidad Nacional de Colombia; Bogotá, Colombia; 230 pp. ISBN 978-95-87199-83-3 [spiral bound].

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!