Log in

Relevant bibliographies by topics / Leikki / Journal articles

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

Journal articles on the topic 'Leikki'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 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 'Leikki.'

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

Varjakoski, Hanna. "Iällä leikittelyä tv-sarjoissa Vuosia nuoremmaksi ja Meidän tarina." Gerontologia 34, no. 1 (February 24, 2020): 43–58. http://dx.doi.org/10.23989/gerontologia.83560.

Full text

Abstract:

Artikkeli analysoi kahta suomalaista televisiosarjaa, joissa muuttumisleikin avulla muokataan osallistujista joko nuoremman tai vanhemman näköisiä. Tutkimus lähestyy aineistoa leikin näkökulmasta ja tarkastelee millä eri tavoin analysoitavissa tv-sarjoissa muokataan (muuttumis)leikin nimissä ikääntyviä ruumiita sosiaalisesti ja kulttuurisesti hyväksyttyihin muotoihin sekä rakennetaan elämän jälkipuoliskoon liittyviä kulttuurisia odotuksia, joista ikääntymisen väistämättömyydet on pitkälti pyyhitty pois. Leikin ambivalenssi luonne nousee pintaan etenkin käsiteltäessä raskaita ja ehkä pelottaviakin aiheita, kuten omaa ikääntymistä ja elämän rajallisuutta, sekä arvotettaessa ”vanhalta” näyttävää ruumista ”rumaksi” ja ongelmalliseksi tavalla, joka voi satuttaa ja loukata. Tämän lisäksi artikkeli pohtii, millaisia uusia näkökulmia leikin käsite voisi avata tapoihin, joilla ymmärrämme ikää, koska tv-sarjojen muuttumisleikeissä on kyse myös iällä leikittelystä. Tutkimuksessa ikä avautuu leikin käsitteen kautta jatkuvasti liikkeessä olevana ja muuntuvana. Leikki mahdollistaa uusia iän esittämisen ja tekemisen tapoja, leikittelyn eri-ikäisyyksillä ja liikkumisen iän jatkumolla edes takaisin.

APA, Harvard, Vancouver, ISO, and other styles

2

Jyrkinen, Kari. "Auto on leikki, auto on hauta." AVAIN - Kirjallisuudentutkimuksen aikakauslehti, no. 1 (March 1, 2009): 22–40. http://dx.doi.org/10.30665/av.74758.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Sintonen, Sara. "Paperileija olemisen mietiskelynä." Aikuiskasvatus 40, no. 2 (June 4, 2020): 147–51. http://dx.doi.org/10.33336/aik.95456.

Full text

Abstract:

Yrjö Hirnin suomalaisen leikkitutkimuksen perusteoksessa leikki ja taide suhteutuvat elämään oppimismatkana. Klassikon paluu -sarjassa esitellään teoksia, jotka ovat olleet merkityksellisiä aikuiskasvatuksen tutkijoille ja ammattilaisille opinnoissa, tutkimuksessa ja työssä.

APA, Harvard, Vancouver, ISO, and other styles

4

Sandbacka, Kasimir. "Työtä vai leikkiä?" AVAIN - Kirjallisuudentutkimuksen aikakauslehti, no. 2 (June 1, 2012): 19–33. http://dx.doi.org/10.30665/av.74869.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Hynnä, Kaisu, and Mari Lehto. "Leikkiä, tunneintensiteettejä ja kuolemaa." Lähikuva – audiovisuaalisen kulttuurin tieteellinen julkaisu 31, no. 3 (November 19, 2018): 3–5. http://dx.doi.org/10.23994/lk.76568.

Full text

Abstract:

Sosiaalisen median keskusteluissa tunteilla on keskeinen sija. Tunnereaktiot, aina ärtymyksestä sympatiaan ja koukkuun jäämisestä tylsistymiseen, kuuluvat olennaisesti sosiaalisen median kohtaamisiin. Lähikuva lähestyy sosiaalisen median ilmiöitä affektin käsitteen kautta. Erikoisnumerossa osallistutaan keskusteluun affektin merkityksistä analysoimalla trollausta, verkkokeskustelun tunneintensiteettejä, affektiivista mainontaa, selfieitä ja e-urheilua.

APA, Harvard, Vancouver, ISO, and other styles

6

Saarikoski, Petri, Markku Reunanen, and Jaakko Suominen. "”Leiki pöpiä – Kalle parantaa”." Tekniikan Waiheita 37, no. 3 (October 23, 2019): 6–30. http://dx.doi.org/10.33355/tw.86772.

Full text

Abstract:

Artikkeli käsittelee 1980-luvun alkupuoliskolla ilmestynyttä, Pekka Tolosen laatimaa Kalle kotipsykiatri -ohjelmaa, joka julkaistiin aluksi Apple II -mikrotietokoneelle Prosessori-lehdessä syyskuussa 1982. Sen tunnetuin variantti on MikroBitin ensimmäisessä numerossa keväällä 1984 ilmestynyt Commodore 64 -versio, jota oli kääntämässä Jyrki J. J. Kasvi. Ohjelma tunnetaan paitsi lukuisista koodivirheistään, joita yritettiin korjata useaan otteeseen, myös kotitietokoneharrastajien sitä kohtaan tuntemasta laajasta kiinnostuksesta. Artikkelissa käydään läpi psykiatriohjelman herättämää aikalaiskeskustelua ja sen merkitystä laajemmin osana aikansa ohjelmointikulttuuria, jota tukeneista medioista tärkeimmäksi nousivat kotitietokonelehdet. Teemme myös tarkemman, rakenteellisen analyysin Kalle kotipsykiatrin ohjelmakoodista.

APA, Harvard, Vancouver, ISO, and other styles

7

Bumann, D., and G. Puls. "Infestation with larvae of the sea anemone Edwardsia lineata affects nutrition and growth of the ctenophore Mnemiopsis leidyi." Parasitology 113, no. 2 (August 1996): 123–28. http://dx.doi.org/10.1017/s0031182000066361.

Full text

Abstract:

SUMMARYThe lobate ctenophore Mnemiopsis leidyi is a periodically abundant and voracious plankton predator in coastal waters along the east coast of the United States. In the 1980s it was accidentally introduced to the Black Sea where it caused a dramatic reduction in fisheries. We investigated how M. leidyi is affected by infestation with parasitic larvae of the sea anemone Edwardsia lineata. Infested M. leidyi contained 1–30 (median 7) E. lineata larvae. Within M. leidyi most larvae had their mouth in the gastrovascular system near the aboral end of the pharynx. Parasitic E. lineata ingested all food previously ingested and pre-digested by M. leidyi. Non-infested M. leidyi had higher growth rates than infested individuals, which had zero or negative growth rates. Egg production was similar for infested and non-infested M. leidyi of similar size. Simulation based on the empirical data suggests that growing, non-infested, M. leidyi are expected to have a larger life-time egg production than infested shrinking individuals. E. lineata could be at least partially responsible for the sharp decline of M. leidyi populations in fall in US coastal waters. Advantages and disadvantages of E. lineata as a potential candidate for the control of the artificially introduced M. leidyi population in the Black Sea are discussed.

APA, Harvard, Vancouver, ISO, and other styles

8

Best, Troy L., and Jason B. Jennings. "Myotis leibii." Mammalian Species, no. 547 (May 9, 1997): 1. http://dx.doi.org/10.2307/3504255.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Morton, Timothy. "Efnisleiki, leikur." Ritið 20, no. 1 (May 8, 2020): 197–202. http://dx.doi.org/10.33112/ritid.20.1.10.

Full text

Abstract:

Þýðingin sem birtist í Ritinu að þessu sinni er eftir Timothy Morton, heimspeking og prófessor við Rice háskóla. Morton er einn áhrifamesti heimspekingur okkar tíma en hann vinnur á mörkum margvíslegra list- og fræðigreina. Nýverið hélt hann fyrirlestur í Safnahúsinu sem fjallaði um vistfræðilega listsköpun og listsköpun á tímum aukinnar vistfræðilegrar meðvitundar. Þess má einnig geta að hann hefur unnið töluvert með heimsþekktum listamönnum á borð við Ólaf Elíasson og Björk. Það er því sérstaklega ánægjulegt og viðeigandi að fá texta eftir hann birtan í Ritinu að þessu sinni. Textann samdi Morton í tengslum við verk Hrafnhildar Arnardóttur, Efnisleikann, sem var framlag Íslands á Feneyjatvíæringnum árið 2019. Þýðandi er Oddný Eir Ævarsdóttir, heimspekingur og rithöfundur, og birtist hann hér með góðfúslegu leyfi höfundar. Timothy Morton hefur einkum beint sjónum sínum að vistfræðilegum málefnum í verkum sínum. Í því samhengi hefur hann meðal annars lagt áherslu á það sem hann kallar myrka vistfræði (e. dark ecology) og varpað ljósi á mikilvægi þess að manneskjan finni nýjar leiðir til að hugsa um tengsl sín við umhverfið, lífhvolfið og alheiminn. Hann veltir upp spurningum og varpar ljósi á þau sameiginlegu vandamál sem steðja að lífríkinu og vistkerfi jarðar nú á tímum mannaldar (e. Anthroposcene). Í þessu samhengi hefur Morton fært rök fyrir því að allt í veröldinni sé samtengt þannig að nær ómögulegt sé að skipta heiminum upp í tvenndir á borð við mann og náttúru eða setja þær fram sem andstæður. Veruleikinn, að hans mati, er í raun einn risastór samanflæktur möskvi (e. mesh). Í texta Mortons, um verk Hrafnhildar, er að finna svipaða nálgun því þar leggur hann áherslu á þétta samofna þræði á milli manneskju, umhverfis og dýra. Þar er einnig að finna myrka vistfræðilega undirtóna sem vísa veginn inn í litríkt verk Hrafnhildar um efnisleikann.

APA, Harvard, Vancouver, ISO, and other styles

10

Leinikki, Sikke. "Mikä rasittaa pätkätyössä?" Aikuiskasvatus 30, no. 4 (December 1, 2010): 280–87. http://dx.doi.org/10.33336/aik.93896.

Full text

Abstract:

Väitöstutkimuksessaan Sikke Leinikki tutki korkeasti koulutettujen pätkätyötä tekevien kertomuksia ja hän asemoi myös itsensä kokemuksellisesti osaksi tutkimaansa kohdetta. Leinikki tarjosi mallitarinoita, joiden avulla pätkätyöläinen voi reflektoida omaa elämäänsä. Kerronnan malleista nousi esille, miten vaikeaa pätkätyöläisen on asemoida itseään työyhteisössä ja miten paljon sosiaaliset verkostot vaikuttavat selviytymiseen. Artikkelissa Leinikki kuvaa, miten pätkätyö sitoo ja sulkee. Pätkätyö näyttäytyy pikemminkin työttömyyden kuin vakinaisen työsuhteen vaihtoehtona. – Sikke Leinikin väitöskirja Pelon ja toivon välissä : pätkätyöläisen urakerronta (Helsingin yliopisto 2009).

APA, Harvard, Vancouver, ISO, and other styles

11

Anninsky, B. E., G. A. Finenko, G. I. Abolmasova, E. S. Hubareva, L. S. Svetlichny, L. Bat, and A. E. Kideys. "Effect of starvation on the biochemical compositions and respiration rates of ctenophores Mnemiopsis leidyi and Beroe ovata in the Black Sea." Journal of the Marine Biological Association of the United Kingdom 85, no. 3 (June 2005): 549–61. http://dx.doi.org/10.1017/s0025315405011471.

Full text

Abstract:

The proximate biochemical composition and metabolic rates of ctenophores Mnemiopsis leidyi and Beroe ovata from the Black Sea were examined with respect to starvation conditions. Although organic matter content in B. ovata was two times higher than that of M. leidyi (2.51 ±0.53 and 1.14 ±0.17 mg g-1 of wet weight, respectively), these species did not significantly differ in their biochemical composition. In both species protein formed about 80% of the total organic matter, lipids amounted to about 10%. Carbohydrate and amino acids measured separately made up less than 6.5% of the total organic matter. Under experimental starvation (18 days at 16—18°C for B. ovata and 8 days at 12.4°C for M. leidyi), wet weights of both ctenophore species were reduced by 9.4% and 9.3% d-1, respectively. The rate of organic matter decrease was nearly two times lower than that of wet weight being on average 5.9% d-1 in M. leidyi and 5.5% d-1 in B. ovata. There was no trend in percentage of the four major biochemical categories with starvation time. The glycogen content in polysaccharides reached maximum values in freshly collected ctenophores (76.0 ±7.9% in B. ovata, and 86.6% in M. leidyi), but it was reduced substantially (34.4 ±2.7% in B. ovata and 18.3—28.8% in M. leidyi) with starvation. Monosaccharide content, expressed as a percentage of total carbohydrate, decreased from 39.9% to 13.5% in B. ovata, and from 45.8% to 14.3—23.2% in M. leidyi. The relationship between respiration rate (R) and wet weight (W) of individuals during the starvation can be expressed by power function R = R1 Wk (r2=0.85—0.94; P>0.001) for both ctenophore species. On average, k values were 0.95 and 0.83 in B. ovata and in M. leidyi, respectively. By the end of the starvation, metabolic rate per unit wet weight decreased by 33% in B. ovata and 46% in M. leidyi. Organic matter utilization was almost totally explained by respiration of ctenophores in the experiments and exceeded metabolic requirements of studied species by 11% and 15%, correspondingly. As compared with Mnemiopsis, Beroe has better tolerance to starvation which explains to some extent the success of the species survival during prolonged periods of food shortage in the Black Sea conditions.

APA, Harvard, Vancouver, ISO, and other styles

12

Shiganova, Tamara. "Changes in appendicularian Oikopleura dioica abundance caused by invasion of alien ctenophores in the Black Sea." Journal of the Marine Biological Association of the United Kingdom 85, no. 3 (June 2005): 477–94. http://dx.doi.org/10.1017/s0025315405011410.

Full text

Abstract:

Oikopleura dioica is the only recorded appendicularian in the Black Sea. During the last two decades major changes in the O. dioica population size as well as total zooplankton community structures were recorded when invasive ctenophore species appeared in the Black Sea ecosystem. The state of the O. dioica population, before the invasion of ctenophores Mnemiopsis leidyi and Beroe ovata, is reviewed. The effect of the invasion of these ctenophores on the total zooplankton and particularly on the O. dioica standing stock is summarized from our long-term data and published information. The abundance, biomass and species composition of zooplankton greatly decreased after the ctenophore Mnemiopsis leidyi invasion due to predation by M. leidyi. Specifically, the abundance of O. dioica declined at that period. But with increasing numbers of a new invader, the ctenophore Beroe ovata, a predator of M. leidyi, in 1999, the zooplankton community began to recover. The population density of Oikopleura dioica also gradually increased to a level that was within the range of its abundance before the M. leidyi outbreak and even higher due to increasing its prey bacteria, which was provoked by the mucus released by B. ovata.

APA, Harvard, Vancouver, ISO, and other styles

13

Bagheri, Siamak, Ulrich Niermann, Mashhor Mansor, and Foong Swee Yeok. "Biodiversity, distribution and abundance of zooplankton in the Iranian waters of the Caspian Sea off Anzali during 1996–2010." Journal of the Marine Biological Association of the United Kingdom 94, no. 1 (October 25, 2013): 129–40. http://dx.doi.org/10.1017/s0025315413001288.

Full text

Abstract:

The mesozooplankton of the south-western Caspian Sea, off Anzali, sampled from 1996–2010, had undergone severe changes, especially after the year 2001, when the invasive ctenophore Mnemiopsis leidyi bloomed for the first time. Native species vanished or decreased, while invasive species such as Pleopis polyphemoides, Acartia tonsa, M. leidyi and the larvae of Balanus sp., plus Hediste diversicolor dominated the zooplankton. It could be stated that the increasing amount of nutrients since the early 1980s led to a decrease of endemic species and smoothed the way for opportunistic invader species, which outcompeted and depleted the endemic species in their turn. However, the major changes in the zooplankton community and possibly the blooming of M. leidyi during 2001–2002 were triggered by changing weather patterns, when a period with heavy rain at the end of the 1990s was followed by a prolonged drought (2001–2002). It is not clear to what extent M. leidyi was responsible for the disappearance of endemic Copepoda and Cladocera species such as Eurytemora grimmi, Limnocalanus grimaldii, Cercopagis pengoi, and Polyphemus exiguous, because the mesozooplantic invader species seemed to be more successful competitors than the endemic Caspian Sea fauna. Compared with other areas of the Caspian Sea, the development of the M. leidyi stock was moderate in the area under investigation. Mnemiopsis leidyi numbers and biomass increased from the beginning of sampling in 2001 to about 600 n.m−3 and 40–60 g wet weight m−3 until 2003. Since then the stock oscillated in this range until 2010.

APA, Harvard, Vancouver, ISO, and other styles

14

Birinci Özdemir, Zekiye, Yakup Erdem, and Levent Bat. "Some population parameters of Mnemiopsis leidyi A. Agassiz, 1865 (Ctenophora: Lobata) in Sinop coasts of the Black Sea." Ege Journal of Fisheries and Aquatic Sciences 37, no. 3 (September 15, 2020): 285–91. http://dx.doi.org/10.12714/egejfas.37.3.11.

Full text

Abstract:

Some population parameters of gelatinous macrozooplankton species, Mnemiopsis leidyi, were studied in the present study carried out from January 2008 to December 2008 along the coasts of Sinop in the Black Sea. A total of 980 M. leidyi specimens were measured and weighed. The estimated average length and weight of the species were 3.2±0.060 cm and 7.3±0.250 g, respectively. The observed maximum and minimum lengths were 10.8 cm and 0.2 cm. The maximum and minimum weights measured were 63 g and 0.1 g. The length-weight relationship equation for M. leidyi was determined to be W = 0.7905L1.6406.

APA, Harvard, Vancouver, ISO, and other styles

15

Von Boehm, Jukka. "Leikin loppu luokkahuoneessa." AVAIN - Kirjallisuudentutkimuksen aikakauslehti, no. 2 (June 1, 2010): 25–39. http://dx.doi.org/10.30665/av.74792.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Brottveit, Ånund. "Leiken i elgskogen." Plan 35, no. 02 (April 15, 2003): 22–27. http://dx.doi.org/10.18261/issn1504-3045-2003-02-04.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Abraham, Wolf-Rainer, Andréia Bergamo Estrela, Manfred Rohde, John Smit, and Marc Vancanneyt. "Prosthecate sphingomonads: proposal of Sphingomonas canadensis sp. nov." International Journal of Systematic and Evolutionary Microbiology 63, Pt_9 (September 1, 2013): 3214–19. http://dx.doi.org/10.1099/ijs.0.048678-0.

Full text

Abstract:

Two stalked, aerobic, catalase- and oxidase-positive rod-shaped isolates, VKM B-1508 ( = CB 258) and FWC47T, were analysed using a polyphasic approach. While the morphology and the 16S rRNA gene sequence of strain VKM B-1508 were 100 % identical to the ones of Sphingomonas leidyi DSM 4733T, the morphology of FWC47T was different, and the closest recognized species were Sphingomonas oligophenolica S213T ( = DSM 17107T) and Sphingomonas leidyi DSM 4733T with 97.2 % and 97.0 % 16S rRNA gene sequence similarity, respectively. DNA–DNA hybridization studies supported the differentiation of strain FWC47T from S. oligophenolica and S. leidyi . Strain FWC47T grew optimally at 28–30 °C, and pH 6.0–8.0. The major respiratory quinone was Q10 and the major polyamine was sym-homospermidine. The major fatty acids were C17 : 1ω6c and C18 : 1ω7c and C15 : 0 2-OH was the major 2-hydroxy fatty acid. The major polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidyldimethylethylamine and unidentified sphingoglycolipids. The G+C content of the genomic DNA of strain FWC47T was 67.1 mol%. Strain FWC47T differed from S. leidyi by its ability to assimilate l-alanine, maltose and sucrose, by the presence of β-galactosidase and α-chymotrypsin, and the lack of valine arylamidase and β-glucosidase activities. Contrary to S. leidyi , FWC47T did not reduce nitrate and could not use fructose, acetate and N-acetyl-glusosamine. In the genus Sphingomonas , the dimorphic life cycle involving a prosthecate sessile and a flagellated swarmer cell was hitherto only known from Sphingomonas leidyi . Therefore, strain FWC47T represents an additional distinct prosthecate species in this genus for which the name Sphingomonas canadensis is proposed. The type strain is FWC47T ( = LMG 27141T = CCUG 62982T).

APA, Harvard, Vancouver, ISO, and other styles

18

Пузаков, М. В., and Л. В. Пузакова. "leidyi – новая группа DD41D-транспозонов в геноме мнемиопсиса Mnemiopsis leidyi." Генетика 55, no. 7 (2019): 788–97. http://dx.doi.org/10.1134/s0016675819070129.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Herd, Robert M. "Electrophoretic divergence of Myotis leibii and Myotis ciliolabrum (Chiroptera: Vespertilionidae)." Canadian Journal of Zoology 65, no. 7 (July 1, 1987): 1857–60. http://dx.doi.org/10.1139/z87-283.

Full text

Abstract:

Myotis ciliolabrum has recently been recognised as a species distinct from Myotis leibii. Electrophoretic divergence between the two species exceeds that of subspecies of other bats and is similar to that found between other species. Fixed allelic differences at two loci suggested that no introgression occurs. The electrophoretic data support the conclusion that M. ciliolabrum and M. leibii are distinct species.

APA, Harvard, Vancouver, ISO, and other styles

20

Fiori, Emanuela, Margherita Benzi, Carla Rita Ferrari, and Cristina Mazziotti. "Zooplankton community structure before and after Mnemiopsis leidyi arrival." Journal of Plankton Research 41, no. 6 (November 2019): 803–20. http://dx.doi.org/10.1093/plankt/fbz060.

Full text

Abstract:

Abstract In the present study, the temporal dynamics of zooplankton community of the North West Adriatic Sea (coastal area of Emilia-Romagna region, Italy) was monitored over 12 years. The distribution and abundance of zooplankton species were investigated in relation to physical and biological parameters (temperature, salinity, dissolved oxygen and chlorophyll-a). Since November 2015 the non-indigenous copepod Pseudodiaptomus marinus, Sato, 1913 has been observed in the study area. During summer 2016, the American comb jelly Mnemiopsis leidyi, A. Agassiz, 1865 was recorded there for the first time and its presence was continuously monitored since that time (weekly observations from August 2016 to December 2017). Our study confirmed that the environmental conditions of the study area were suitable for M. leidyi growth. In addition, due to the combined effects of temperature, salinity and food availability M. leidyi was able to survive during winter months. Particular attention was then given to zooplankton abundance and community changes between two time periods: before and after M. leidyi arrival. Statistical analysis revealed significant differences in zooplankton abundance between the two time periods and a decrease in species diversity and evenness was observed during summer 2016.

APA, Harvard, Vancouver, ISO, and other styles

21

Louppova, N. "The Abundance and Biomass Dynamic of Populations the Black Sea Macrozooplankton." Bulletin of Science and Practice 6, no. 5 (May 15, 2020): 74–82. http://dx.doi.org/10.33619/2414-2948/54/09.

Full text

Abstract:

The abundance and biomass dynamic of massive macrozooplankton of the Black Sea was studied over 3 years. Data on the dates of mass reproduction of Jellyfish Aurelia aurita and Ctenophore invaders Mnemiopsis leidyi and Beroe ovata were obtained. The dependence of M. leidyi reproduction on the season and temperature of the medium was established, and for the other two gelatinous, on the successful reproduction of Mnemiopsis.

APA, Harvard, Vancouver, ISO, and other styles

22

Саяпин, В. В. "Состояние желетелого макрозоопланкгона Азовского моря в 2018-2019 гг, "Наука Юга России"." Science in the South of Russia, no. 3 (2020): 62–68. http://dx.doi.org/10.7868/s25000640200307.

Full text

Abstract:

Приведены данные о состоянии азовоморских псевдопопуляций гребневиков-вселен-цсв Mnemiopsis leidvi A. Agassiz, 1865 и Beroe ovata Bruguiere, 1789 в 2018 и 2019 гг. Показаны особенности в характере распределения биомассы этих видов в указанный период. Отмечено смещение на более ранний срок захода М. leidvi и В. ovata в Азовское море по сравнению с литературными данными. Высказано предположение о его связи с повышением среднегодовых температур воды в северо-восточной части Черного моря.

APA, Harvard, Vancouver, ISO, and other styles

23

Finenko, G. A., N. A. Datsyk, and B. E. Anninsky. "Spatial distribution and feeding rate of gelatinous predators in inshore areas off Crimean coast in winter 2016." Marine Biological Journal 1, no. 3 (September 29, 2016): 42–49. http://dx.doi.org/10.21072/mbj.2016.01.3.07.

Full text

Abstract:

Gelatinous predators are the most important components of the Black Sea ecosystem. In spite of the numerous studies of different aspects of their biology (horizontal and vertical distribution, bioenergetical indices of the growth and energy transformation on organism and population levels) data on population conditions and their functioning in winter period is very scarce. In present study data on numerical abundance, biomass, size structure of jellyfish predators (Aurelia aurita, Mnemiopsis leidyi, Beroe ovata и Pleurobrachia pileus) and feeding intensity of two dominated species (A. aurita, M. leidyi) were investigated on 17 stations in inshore waters near Crimea in winter 2016. Sampling was carried out with the modified Bogorov – Rass net with 80 cm diameter, mesh 300 mkm by vertical tows from the bottom to the surface (0–100 m). Biomass of A. aurita varied from 30 to 1990 g·m-2 with higher values in the southern region. Other species biomass was much lower (maximum values are 170 g·m-2 of M. leidyi and 60 g·m -2 of P. pileus). High biomass of B. ovata (85 g·m-2), comparable with the summer values, was observed at a station in the northern shelf. A significant difference in biomass of the species between the regions was not revealed except a difference in B. ovata biomass in the northern and southern regions (p < 0.05). The bulk of all species populations were formed by adult individuals. The Bivalvia veligers were the main food items in A. aurita and different Copepoda stages – in M. leidyi. Daily rations in A. aurita were 0.009–0.107, in M. leidyi – 0.02–0.28 % C body and were much lower of jellyfish food requirements at that temperature conditions.

APA, Harvard, Vancouver, ISO, and other styles

24

Slesinger, Emily, Joseph A. Langan, Barbara K. Sullivan, David G. Borkman, and Theodore J. Smayda. "Multi-decadal (1972–2019) Mnemiopsis leidyi (Ctenophora) abundance patterns in Narragansett Bay, Rhode Island, USA." Journal of Plankton Research 42, no. 5 (August 14, 2020): 539–52. http://dx.doi.org/10.1093/plankt/fbaa035.

Full text

Abstract:

Abstract The influence of a warming climate on patterns of abundance and seasonality of the lobate ctenophore Mnemiopsis leidyi is of interest worldwide, especially in regions where the species occurs at or near the limits of its thermal niche or is shifting its spatial distribution poleward. A 47-year (1972–2019) time series of weekly observations of M. leidyi abundance in Narragansett Bay, the northern limit of its distribution in the Northwest Atlantic, was analyzed to identify links between abundance and environmental factors such as temperature. During this entire period, the species exhibited a striking degree of interannual variability with a gradual decline during the most recent years. Temperature influenced ctenophore abundance, with warmer winter and spring temperatures supporting higher abundances and longer bloom durations. Two blooms were typically observed each year, and both the summer and autumn bloom shifted earlier over time. Chlorophyll was an important factor in the abundance and bloom dynamics of reproductive stage ctenophores, where high levels of summer chlorophyll indicated lower autumn ctenophore abundance, suggesting top-down effects by M. leidyi. These results suggest that multiple factors affect M. leidyi abundance and phenology but that ctenophores in both native and introduced ranges may benefit from continued ocean warming.

APA, Harvard, Vancouver, ISO, and other styles

25

DICIOTTI, R., J. CULURGIONI, S. SERRA, M. TRENTADUE, G. CHESSA, C. T. SATTA, T. CADDEO, A. LUGLIE, N. SECHI, and N. FOIS. "First detection of Mnemiopsis leidyi (Ctenophora, Bolinopsidae) in Sardinia (S’Ena Arrubia Lagoon, Western Mediterranean): a threat for local fishery and species recruitment." Mediterranean Marine Science 17, no. 3 (July 28, 2016): 714. http://dx.doi.org/10.12681/mms.1719.

Full text

Abstract:

The invasive comb jelly Mnemiopsis leidyi is a lobate ctenophore native of coastal and estuarine waters of the temperate western Atlantic Ocean. In the last decades this species has expanded its range of distribution, colonizing marine and transitional environments in Europe. In October 2015, during a survey fishing the European eel Anguilla anguilla in Sardinia (western Mediterranean), a massive bloom of this specie was observed in the eutrophic S’Ena Arrubia Lagoon for the first time. In November 2015, sampling was conducted at three stations in the lagoon and in a fyke net, in order to estimate the abundance of M. leidyi and to determine its impact on the fishing activity. The results showed an abundance of 2.83 ctenophores m-3. Specimens were all adults, measuring 18 - 62 mm total length. The abundant number of ctenophores (6837 individuals per fyke net) damaged fishing operations, reducing catches and affecting the performance of fishing gears. Since there is no effective mechanical, chemical or biological method to counter M. leidyi, the short term economic damage may be approached by new management measures of fisheries. In addition, other actions against the recurring of M. leidyi invasion, can include management strategies, in particular those finalized to reduce the high trophic state of the lagoon.

APA, Harvard, Vancouver, ISO, and other styles

26

Fischer, Andreas. "Ernst Leisi†." Anglia - Zeitschrift für englische Philologie 121, no. 1 (January 23, 2003): 1–3. http://dx.doi.org/10.1515/angl.2003.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Puzakov, M. V., and L. V. Puzakova. "leidyi Is a New Group of DD41D Transposons in Mnemiopsis leidyi Genome." Russian Journal of Genetics 55, no. 7 (July 2019): 825–34. http://dx.doi.org/10.1134/s1022795419070123.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Classen, Albrecht. "Medieval Combat in Colour: Hans Talhoffer’s Illustrated Manual of Swordfighting and Close-Quarter Combat from 1467, ed. and introduced by Dierk Hagedorn. Barnsley, S. Yorkshire: Greenhill Books, 2018, 319 pp., ill." Mediaevistik 32, no. 1 (January 1, 2020): 548–49. http://dx.doi.org/10.3726/med.2019.01.165.

Full text

Abstract:

The late Middle Ages witnessed the creation of numerous fencing books, mostly in Germany, illustrating the many different techniques, weapons, styles, strategies, and the movements, as Patrick Leiske discussed only recently in his Höfisches Spiel und tödlicher Ernst (2018; see my review here in vol. 32). Some of the true masters and teachers of this sport and fighting technique were Johannes Liechtenauer, Peter von Danzig, Sigmund Ringeck, and Hans Talhoffer, whom Leiske also discusses in a separate chapter.

APA, Harvard, Vancouver, ISO, and other styles

29

Stoncelytė, Raimonda, and Erika Masiliauskienė. "Ankstyvojo amžiaus vaikų adaptaciją ikimokyklinio ugdymo įstaigoje lemiantys veiksniai (Kauno miesto atvejis)." Jaunųjų mokslininkų darbai 49, no. 2 (December 18, 2019): 29–35. http://dx.doi.org/10.21277/jmd.v49i2.237.

Full text

Abstract:

Adaptacija ikimokyklinio ugdymo įstaigoje sudėtingas ir neramus procesas. Vaikas įpratęs laiką leisti su tėvais, būti jų prižiūrimas, todėl šis išsiskyrimas jam labai skausmingas. Ankstyvajame amžiuje vaikui rekomenduojama būti su mama, tačiau dažnai dėl susiklosčiusių aplinkybių nusprendžiama vaiką leisti į ikimokyklinę ugdymo įstaigą. Tėvai šiam procesui ruošiasi iš anksto, o pradėję leisti vaiką į ugdymo įstaigą privalo dirbti kartu su pedagogais. Niekam ne paslaptis, kad rasti laiko kokybiškam ir sėkmingam bendradarbiavimui darosi vis sunkiau. Nepaisant to, tiek tėvai, tiek ugdymo įstaiga turi suprasti, kad juos vienija tas pats tikslas – sėkmingas tolesnis vaiko ugdymas(is). Tyrimo probleminis klausimas – kokie ankstyvojo amžiaus vaikų (iki 3 metų) adaptacijos ikimokyklinio ugdymo įstaigoje ypatumai?Atlikto tyrimo rezultatai atskleidė, kad esminiai ankstyvojo amžiaus vaikų sėkmingos adaptacijos ikimokyklinio ugdymo įstaigoje ypatumai yra šie: nuolatinis keitimasis informacija (tėvai–pedagogai) apie vaiko savijautą; susitarimai dėl adaptaciją lengvinančių priemonių taikymo namuose ir ugdymo institucijoje, taip užtikrinant ugdomųjų veiksmų tęstinumą (grupės aplinka–namų aplinka); periodiniai pedagogų ir tėvų susitikimai adaptacijos klausimams aptarti; abipusis (tėvai–pedagogai) pasitikėjimas ir pagalba.

APA, Harvard, Vancouver, ISO, and other styles

30

Mashukova, Olga, Olga Danilova, and Lidia Melnik. "Variability of the ctenophore Mnemiopsis leidyi A.Agassiz (Ctenophora: Lobata) bioluminescence while regeneration." Ecologica Montenegrina 37 (November 17, 2020): 19–26. http://dx.doi.org/10.37828/em.2020.37.3.

Full text

Abstract:

The purpose of the current studies is identification of the bioluminescence variability of the ctenophores Mnemiopsis leidyi in the process of regeneration. It has been stated that the ctenophores M. leidyi being seriously injured with preserved statocyst still actively move but the amplitude and duration of their bioluminescence lessen to their minimums that is 17.08 quantum·s-1·cm-2 and 1.37 s respectively under chemical stimulation and 14.85·108 quantum·s-1·cm-2 and 1.25 s respectively under the mechanical impact. Having completed regeneration and restored the body weight up to the initial value, the ctenophores increased their light emission up to the maximum levels corresponding to 332.33 ± 16.61∙108 quantum·s-1·cm-2 under the chemical stimulation and to 219.45 ± 10.97∙108 quantum·s-1·cm-2 under the mechanical impact respectively. Several assumptions identifying the factors influencing the regeneration rate of the ctenophores M. leidyi and their bioluminescence variability range during their regeneration have been made. The possibility of applying bioluminescence for detecting ecological features associated with particular species is demonstrated.

APA, Harvard, Vancouver, ISO, and other styles

31

Gunnars, Kristjana, and Birgir Sigurðsson. "Óskastjarnan: Leikrit í fjórum þáttum." World Literature Today 73, no. 4 (1999): 760. http://dx.doi.org/10.2307/40155188.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Zhu, Leilei. "Leilei Zhu: Clinical Classification Consultant." Health Information Management Journal 36, no. 1 (April 2007): 49–51. http://dx.doi.org/10.1177/183335830703600109.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Shi, Leilei, Yufeng Liu, Qian Wang, Tiankuo Wang, Yubin Ding, Yi Cao, Zhe Li, and Hui Wei. "Correction: A pH responsive AIE probe for enzyme assays." Analyst 143, no. 3 (2018): 784. http://dx.doi.org/10.1039/c8an90010h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

van der Molen, J., J. van Beek, S. Augustine, L. Vansteenbrugge, L. van Walraven, V. Langenberg, H. W. van der Veer, K. Hostens, S. Pitois, and J. Robbens. "Modelling survival and connectivity of <i>Mnemiopsis leidyi</i> in the south-western North Sea and Scheldt estuaries." Ocean Science 11, no. 3 (June 4, 2015): 405–24. http://dx.doi.org/10.5194/os-11-405-2015.

Full text

Abstract:

Abstract. Three different models were applied to study the reproduction, survival and dispersal of Mnemiopsis leidyi in the Scheldt estuaries and the southern North Sea: a high-resolution particle tracking model with passive particles, a low-resolution particle tracking model with a reproduction model coupled to a biogeochemical model, and a dynamic energy budget (DEB) model. The results of the models, each with its strengths and weaknesses, suggest the following conceptual situation: (i) the estuaries possess enough retention capability to keep an overwintering population, and enough exchange with coastal waters of the North Sea to seed offshore populations; (ii) M. leidyi can survive in the North Sea, and be transported over considerable distances, thus facilitating connectivity between coastal embayments; (iii) under current climatic conditions, M. leidyi may not be able to reproduce in large numbers in coastal and offshore waters of the North Sea, but this may change with global warming; however, this result is subject to substantial uncertainty. Further quantitative observational work is needed on the effects of temperature, salinity and food availability on reproduction and on mortality at different life stages to improve models such as used here.

APA, Harvard, Vancouver, ISO, and other styles

35

van der Molen, J., J. van Beek, S. Augustine, L. Vansteenbrugge, L. van Walraven, V. Langenberg, H. W. van der Veer, K. Hostens, S. Pitois, and J. Robbens. "Modelling survival and connectivity of <i>Mnemiopsis leidyi</i> in the southern North Sea and Scheldt estuaries." Ocean Science Discussions 11, no. 3 (June 20, 2014): 1561–611. http://dx.doi.org/10.5194/osd-11-1561-2014.

Full text

Abstract:

Abstract. Three different models were applied to study the reproduction, survival and dispersal of Mnemiopsis leidyi in the Scheldt estuaries and the southern North Sea: a high-resolution particle tracking model with passive particles, a low resolution particle tracking model with a reproduction model coupled to a biogeochemical model, and a dynamic energy budget (DEB) model. The results of the models, each with its strengths and weaknesses, suggest the following conceptual situation: (i) the estuaries possess enough retention capability to keep an overwintering population, and enough exchange with coastal waters of the North Sea to seed offshore populations; (ii) M. leidyi can survive in the North Sea, and be transported over considerable distances, thus facilitating connectivity between coastal embayments; (iii) under current climatic conditions, M. leidyi may not be able to reproduce in large numbers in coastal and offshore waters of the North Sea, but this may change with global warming – however this result is subject to substantial uncertainty. Further quantitative observational work is needed on the effects of temperature, salinity and food availability on reproduction and on mortality at different life stages to improve models such as used here.

APA, Harvard, Vancouver, ISO, and other styles

36

Marchessaux, Guillaume, Bruno Belloni, Justine Gadreaud, and Delphine Thibault. "Predation assessment of the invasive ctenophore Mnemiopsis leidyi in a French Mediterranean lagoon." Journal of Plankton Research 43, no. 2 (February 4, 2021): 161–79. http://dx.doi.org/10.1093/plankt/fbab002.

Full text

Abstract:

Abstract Since 2000, the invasive ctenophore Mnemiopsis leidyi has been recorded in Mediterranean brackish lagoons. Quantitative data on its feeding behavior (i.e. potential ecological impact) in these particular environments are non-existent. In this study, we describe in situ predation dynamics of M. leidyi in the Berre Lagoon (south-eastern France) over a 22-month survey. Ctenophores were fixed in a solution of formalin in brackish water, allowing the study of the prey items in the gastric cavities at different time scales. The number of prey items ingested is influenced by the ctenophore biovolume, from 8 (0.5 mL) to 1 207 prey ind−1 (35 mL), and by temperature of 3.4°C (2 ± 2 prey ind−1) to 23.2°C (517 ± 295 prey ind−1). Gut evacuation time is strongly related to temperature and ranged from 80 (25°C) to 160 min (9°C). Mnemiopsis leidyi diet changed seasonally following in situ concentrations of prey. The less mobile preys such as mollusks and barnacles were the most impacted. The ctenophore predation pressure on the zooplankton assemblage could lead at time to a release of grazing pressure on phytoplankton and favor the eutrophication of the lagoon.

APA, Harvard, Vancouver, ISO, and other styles

37

Söli, Geir E. E. "Sticholeia - a new genus of Leiini, with comments on the systematic position of Allactoneura de Meijere (Diptera: Mycetophilidae)." Insect Systematics & Evolution 27, no. 1 (1996): 1–10. http://dx.doi.org/10.1163/187631296x00179.

Full text

Abstract:

AbstractA new genus, Sticholeia, is erected to comprise two new species, cheesmanae and dolichostyla, from New Guinea and Vanuatu, respectively, and an unnamed female from Indonesia. Members of the new genus have two ocelli, a row of strong bristles near the hind margin of the eyes, tibial trichia arranged in regular rows, and strongly prolonged male terminalia. Despite featuring some characters supposed to be diagnostic for the subfamily Manotinae, the new genus is attributed to the tribe Leiini of Sciophilinae. The genus may represent the sistergroup of Allactoneura de Meijere plus Leiella Enderlein. Judged from the distribution of characters among Leiini the monotypic tribe Allactoneurini is rejected.

APA, Harvard, Vancouver, ISO, and other styles

38

Geier, Anne-Kathrin, Christiane Saur, Stefan Lippmann, Melanie Nafziger, T. Frese, and Tobias Deutsch. "LeiKA: an optional German general practice teaching project for first-semester medical students: who is taking part and why? A cross-sectional study." BMJ Open 9, no. 10 (October 2019): e032136. http://dx.doi.org/10.1136/bmjopen-2019-032136.

Full text

Abstract:

ObjectivesThis study investigates students’ adoption of LeiKA, a new extracurricular longitudinal general practice (GP) teaching project. LeiKA aims to attract a broad range of students, not only those who are already planning to become GPs. This study compares participants’ and non-participants’ characteristics, career preferences and job-related value orientations to assess the programme’s initial potential to increase the number of students subsequently entering GP careers. Additionally, students’ motives for taking part in the programme were explored.DesignWe analysed administrative data and data from a cross-sectional questionnaire survey for the first three cohorts. LeiKA participants were compared with non-participants regarding baseline characteristics, career intentions and attitudes associated with GP careers. There was also a qualitative analysis of the reasons for taking part.SettingFaculty of Medicine, University of Leipzig, Germany.ParticipantsFirst-semester medical students in the years 2016–2018.ResultsIn the first 3 years, 86 of 90 LeiKA slots were taken, 9.0% (n=86/960) of those eligible to apply. LeiKA participants were a mean of 0.6 years older (LeiKA: 21.5 vs whole cohort: 20.9 years, p<0.001) and slightly more interested in long-term doctor–patient relationships (3.6 vs 3.3, scale from 1 ‘unimportant’ to 5 ‘very important’, p=0.018), but did not differ regarding other characteristics and attitudes. Although more participants definitely favoured a GP career (13.1% vs 4.9%, p=0.001), it was a possible option for most students in both groups (78.6% vs 74.0%). Early acquisition of skills and patient contact were the main motives for taking part, stated by 60.7% and 41.7% of the participants, respectively.ConclusionsThe extracurricular programme was taken up by a broad range of students, indicating its potential to attract more students to become GPs. The reasons for taking part that we identified may guide the planning of other similar projects.

APA, Harvard, Vancouver, ISO, and other styles

39

Kaila, Lauri, and Sakari Kerppola. "Elachista leifi sp. n. from northern Finland (Lepidoptera, Elachistidae)." Entomologica Fennica 3, no. 3 (September 1, 1992): 155–58. http://dx.doi.org/10.33338/ef.83606.

Full text

Abstract:

Elachista leifi sp. n. is described from material collected in Kuusamo, northern Finland. It is a very large species resembling E. kilmunella Stainton, E. parasella Traugott-Olsen and E. eskoi Kyrki & Karvonen. The species occurs on open bogs, swarming early in the morning at sunrise. The systematic position of E. leifi is discussed.

APA, Harvard, Vancouver, ISO, and other styles

40

Silvenius, Frans, Aaro Alaspää, Oiva Niemeläinen, and Kirsi Raiskio. "Nurmikon leikkuun polttoainekulutus ja kasvihuonekaasupäästöt osana viherrakennuskohteen elinkaariarviointia." Suomen Maataloustieteellisen Seuran Tiedote, no. 30 (January 31, 2014): 1–7. http://dx.doi.org/10.33354/smst.75409.

Full text

Abstract:

EU LIFE09 ENV FI 000570 ”LCA in Landscaping” – hankkeessa mitattiin nurmikon leikkuukoneen polttoainekulutusta erilaisissa olosuhteissa kesällä 2012. Mittaukset tehtiin puistonurmikolla MTT:llä Jokioisten toimipisteessä sekä Hämeenlinnassa Sairion puistoalueella. Mittatulosten perusteella laskettiin nurmikon leikkaamisen päästöt ja ilmastovaikutus eri leikkuuintensiteeteille. Leikkuuintensiteettejä olivat leikkuu viikoittain, leikkuu joka toinen viikko ja leikkuu 1 kerta kolmessa viikossa. Ilmastovaikutusta verrattiin muihin puistonurmikolla tehtävien hoitotoimenpiteiden (lannoittaminen ja kalkitus) aiheuttamaan ilmastovaikutukseen. Ilmastovaikutuksen lisäksi mitattiin ns. ”hukka-ajon” ja polttoaineenkulutusta erimuotoisilla lohkoilla. Hukka-ajo (%) ilmaisee, kuinka suuresta osasta leikattavaa lohkoa leikkuuyksikkö on kulkenut moneen kertaan. Hukka-ajomittauksia tehtiin Jokioisilla MTT:ssä, jonka lisäksi tehtiin täydentäviä mittauksia Hämeenlinnassa Sairion puistoalueella. Keskimääräinen polttoaineenkulutus Jokioisilla oli 4,2 l/ha bensiiniä ja työsuoritus noin 3400 m2/h ja Hämeenlinnassa 5,26 l dieseliä/ha (Kuva 3) työsuorituksen ollessa 7300 m2/h. Polttoaineenkulutus vaihteli runsaasti sekä samalla alueella että erialueilla tehdyissä mittauksissa. Verrattaessa nurmikon leikkuun ilmastovaikutuksia muihin nurmikon hoitotoimenpiteisiin havaittiin, että nurmikon leikkuun lisäksi suuri ilmastovaikutus on myös kalkituksella ja lannoituksella siten, että suurilla kalkitusmäärillä ja pienimmillä polttoaineenkulutuksen arvoilla kalkituksen ja lannoituksen osuus kasvihuonekaasupäästöistä on suurempi kuin ruohonleikkuun. Vastaavasti taas pienillä kalkitus- ja lannoitusmäärillä nurmikon leikkuun kasvihuonekaasupäästöt nousevat merkittävimmiksi. Tuloksista oli odotettavaa, että Hämeenlinnassa käytetyn suuremman leikkuukoneen työsuoritus oli suurempi kuin Jokioisilla käytetyn pienen koneen, mutta sitä, että pienemmän koneen pienempi hehtaarikohtainen polttoaineenkulutus oli yllättävä. Syyn arveltiin olevan pienemmän koneen pienemmässä painossa.

APA, Harvard, Vancouver, ISO, and other styles

41

Berry, Kenneth J., and Paul W. Mielke. "Indices of Ordinal Variation." Perceptual and Motor Skills 74, no. 2 (April 1992): 576–78. http://dx.doi.org/10.2466/pms.1992.74.2.576.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Björnsson, Hans. "Að leika guð - framfarir í erfðafræði." Læknablaðið 2019, no. 03 (March 5, 2019): 111. http://dx.doi.org/10.17992/lbl.2019.03.219.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Baiandina, Iu S. "Response of Mnemiopsis leidyi larvae to light intensity changes." Marine Biological Journal 5, no. 2 (June 30, 2020): 105–8. http://dx.doi.org/10.21072/mbj.2020.05.2.09.

Full text

Abstract:

A possible response to light of larvae of Black Sea ctenophore Mnemiopsis leidyi of two age groups (first to fourth day and one-two weeks after hatching) was experimentally studied. The larvae were placed in a Petri dish with seawater, in which two areas (light and dark) were created using a light source and a black opaque background. The number of larvae in each area was recorded for an hour after the start of the experiment. It was found that on average 77 % of the early stage larvae (first to fourth day) migrated to the dark area after an hour. We hypothesized that Mnemiopsis leidyi early stage larvae have negative phototaxis. Similar response of the older larvae (one-two weeks) was not recorded.

APA, Harvard, Vancouver, ISO, and other styles

44

Mashukova, O. V., and Yu N. Tokarev. "Variability of Mnemiopsis leidyi A. Agassiz (Ctenophora: Lobata) bioluminescence in relation to regeneration." Marine Biological Journal 1, no. 1 (March 9, 2016): 36–42. http://dx.doi.org/10.21072/mbj.2016.01.1.04.

Full text

Abstract:

Our previous works have been shown the light-emission of Mnemiopsis leidyi A. Agassiz, 1865 and Beroe ovata Mayer, 1912 is species-specific and variability of bioluminescence parameters (amplitude, energy and also light-emission duration) depending on temperature, food supply and other factors. Revealing of M. leidyi light-emission variability during their regeneration after impactof predaceous organism B. ovata was the aim of our investigations. Definition of ctenophores bioluminescence characteristics was carry out on the laboratory complex “Light”. The ctenophore bioluminescence was investigated by method of mechanical and chemical stimulation. The ctenophores, which were seriously injured but preserved their statocyst intact, went on actively moving but the characteristics of their light-emission lessened to minimal – 17.08·108 quantum·s−1·cm−2 and 1.37 s under chemical stimulation, and 14.85·108 quantum·s−1·cm−2 and 1.25 s under the mechanical impact, respectively. Having completed regeneration and restored the body weight to the initial, the ctenophores maximally increased light emission – to (332.33 ± 16.61·108) quantum·s−1·cm−2 under the chemical stimulation and to (219.45 ± 10.97·108) quantum·s−1·cm−2 under the mechanical excitation. Assumptions of the factors having an impact on M. leidyi regeneration intensity and their luminescence variability of throughout this process are made. Consequently, the possibility of bioluminescence applying for species ecology specification is shown.

APA, Harvard, Vancouver, ISO, and other styles

45

Isaacson, Lanae Hjortsvang, and Elías Snæland Jónsson. "Fjörbrot fuglanna: Leikrit í tuttugu atriðum." World Literature Today 74, no. 2 (2000): 419. http://dx.doi.org/10.2307/40155736.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Pang, K., and M. Q. Martindale. "Mnemiopsis leidyi Spawning and Embryo Collection." Cold Spring Harbor Protocols 2008, no. 12 (November 1, 2008): pdb.prot5085. http://dx.doi.org/10.1101/pdb.prot5085.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Chen, Hong, Mareike Jogler, Manfred Rohde, Hans-Peter Klenk, Hans-Jürgen Busse, Brian J. Tindall, Cathrin Spröer, and Jörg Overmann. "Reclassification and emended description of Caulobacter leidyi as Sphingomonas leidyi comb. nov., and emendation of the genus Sphingomonas." International Journal of Systematic and Evolutionary Microbiology 62, Pt_12 (December 1, 2012): 2835–43. http://dx.doi.org/10.1099/ijs.0.039636-0.

Full text

Abstract:

‘ Caulobacter leidyi ’ DSM 4733T has been shown to be affiliated with the family Sphingomonadaceae instead of the Caulobacteraceae , and due to its poor characterization has been omitted from the current edition of Bergey’s Manual of Systematic Bacteriology and removed to limbo. We isolated a novel sphingoglycolipid-containing dimorphic prosthecate bacterium, designated strain 247, from a pre-alpine freshwater lake. Strain 247 and ‘ Caulobacter leidyi ’ DSM 4733T were characterized in detail. The rod-shaped cells were Gram-stain-negative, aerobic, catalase- and oxidase-positive, and formed a stalk or polar flagellum. Both strains grew optimally at 28–30 °C, and pH 6.0–8.0. The major fatty acids were C18 : 1ω7c, C16 : 0 and 11-methyl C18 : 1ω7c. C14 : 0 2-OH represents the major 2-hydroxy fatty acid. Q-10 was the major respiratory quinone and the major polar lipids were diphosphatidylglycerol, phosphatidyldimethylethanolamine, phosphatidylglycerol, phosphatidylmonomethylethanolamine, phosphatidylethanolamine, phosphatidylcholine, three glycolipids, two phosphoaminolipids and two unidentified sphingoglycolipids. The major polyamine was sym-homospermidine. The G+C content of genomic DNA of strains 247 and DSM 4733T was 67.6 mol% and 67.0 mol%, respectively. According to 16S rRNA gene sequence analysis and DNA–DNA hybridization, strains DSM 4733T and 247 were phylogenetically closely related (99.6 % 16S rRNA gene sequence similarity, 82.9 % DNA–DNA hybridization value) and affiliated to the genus Sphingomonas . The closest recognized species was Sphingomonas aquatilis DSM 15581T (98.1 % sequence similarity). In addition, the presence of cystine arylamidase, absence of β-galactosidase, and the inability to utilize l-arabinose, galactose and sucrose distinguished strains DSM 4733T and 247 from most other members of the family Sphingomonadaceae . So far, the dimorphic life cycle that involves a prosthecate and a flagellated stage is unique for strains DSM 4733T and 247 among all members of the family Sphingomonadaceae . Therefore, Caulobacter leidyi is reclassified as Sphingomonas leidyi, with the type strain DSM 4733T ( = ATCC 15260T = CIP 106443T = VKM B-1368T) and strain 247 (DSM 25078 = LMG 26658) as an additional strain of this species.

APA, Harvard, Vancouver, ISO, and other styles

48

KAŠĖTAITĖ, RASA. "KIŠENINIŲ KNYGŲ LEIDYBOS SITUACIJA LIETUVOJE." Knygotyra 55 (January 1, 2010): 235–48. http://dx.doi.org/10.15388/kn.v55i0.3482.

Full text

Abstract:

Vilniaus universiteto Knygotyros ir dokumentotyros institutasUniversiteto g. 3, LT-01513 Vilnius, LietuvaEl. paštas: rasa.kasetaite@kf.stud.vu.ltStraipsnyje nagrinėjama šiandienos Lietuvos kišeninių knygų leidybos situacija. Ji įvertinta remiantis Didžiosios Britanijos ir JAV kišeninių knygų leidybos patirtimi. Analizuojami kišeninių knygų minkštais viršeliais pranašumai ir trūkumai, palyginti su knygomis kietais viršeliais, ir kišeninių knygų pritaikomumas Lietuvos knygų rinkoje. Surinkti duomenys apie 2000–2009 metais išleistus kišeninius leidinius parodė, kad gausiau knygas kišeniniu formatu imta leisti nuo 2006 m. Tai lėmė naujos leidyklos, leidžiančios išskirtinai meilės romanus kišeniniu formatu, įkūrimas. 2008–2009-ieji būtų laikomi kišeninių knygų leidybos pagausėjimo laikotarpiu: kitos leidyklos irgi ėmėsi leisti knygas mažesniu formatu. Straipsnyje pristatomos leidyklos, kišeninių knygų serijos, tiriami leidyklų pozicionavimo ir kišeninių knygų reklamos rinkodaros veiksmai, leidyklų patirtis, analizuojamas knygos vartotojų požiūris į kišenines knygas remiantis leidyklų ir knygynų darbuotojų įžvalgomis.

APA, Harvard, Vancouver, ISO, and other styles

49

Efimenko, V. "Leiko Uliana Makarivna. Necrologue." Bulletin of Taras Shevchenko National University of Kyiv. Astronomy, no. 60 (2019): 49. http://dx.doi.org/10.17721/btsnua.2019.60.49.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Biryukova, Maria Georgievna. "TROPHOLOGY OF CTENOPHORE MNEMIOPSIS LEIDYI AFTER NATURALIZATION IN ECOSYSTEM OF CASPIAN SEA." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2021, no. 1 (March 17, 2021): 61–81. http://dx.doi.org/10.24143/2073-5529-2021-1-61-68.

Full text

Abstract:

Trophological studies of ctenophore Mnemiopsis leidyi conducted in the Caspian Sea more often included species at the later stage of development, as a result, juveniles, metamorphic larvae and larvae were ignored. Ctenophore is known to start feeding since the moment the larva emerges from the egg. Studying the availability of food resources and their size range allowed to trace a certain dependence in the diet of ctenophore, and to determine at which stage of development the jellylike organism in the population feeds most intensively. During the period of naturalization of invasion in the Caspian Sea (1998-2016) there has been registered an increasing number of species with an empty gastrovascular cavity (GVC) in the Mnemiopsis population. According to the analysis results obtained during the study period, the share of individuals with empty GVC in the North Caspian increased to 77.8%, which is associated not with the climatic or hydrological factors, as in 2015 and 2016, but with the availability of food items and internal competition for food resources. There has been found the diversity of the items making food stuff of Mnemiopsis in nature. The main food component is mesozooplankton, as well as meroplankton (cirriped nauplii, larvae of polychaete worms). In food requirements ctenophore does not show selectivity of food resources, the basis of its food make the most available forms of zooplankters.

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!