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Tytuł:
Frequency Dependent Incidence Model for Acute and Chronic Schistosomiasis
Autorzy:
Derick, Ngobi
Onuorah, Martins O.
Powiązania:
https://bibliotekanauki.pl/articles/1077429.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Schistosomiasis
acute
chronic
endemic
equilibrium
stability
Opis:
In this research work, a deterministic mathematical model for schistosomiasis transmission dynamics is presented. The model consists of five non-liniar ordinary differential equations incorporating the acute and chronic infectious compartments. The basic reproductive number, (the number of secondary infections when a single infectious individual is introduced into a population where everyone is susceptible) was obtained. Furthermore, we gained and analyzed for stability, the disease-free and endemic equilibrium. The qualitative feature of the model shows that the long-term behavior of the model is independent of initial conditions. Numerical simulation of the various state variables were obtained using matlab software.
Źródło:
World News of Natural Sciences; 2019, 23; 276-296
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Role of Faster R-CNN Algorithm in the Internet of Things to Detect Mask Wearing: The Endemic Preparations
Autorzy:
Nasution, Marah Doly
Al-Khowarizmi
Rahmat, Romi Fadillah
Lubis, Arif Ridho
Lubis, Muharman
Powiązania:
https://bibliotekanauki.pl/articles/27311978.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Faster R-CNN
IoT
mask
endemic
Opis:
Faster R-CNN is an algorithm development that continuously starts from CNN then R-CNN and Faster R-CNN. The development of the algorithm is needed to test whether the heuristic algorithm has optimal provisions. Broadly speaking, faster R-CNN is included in algorithms that are able to solve neural network and machine learning problems to detect a moving object. One of the moving objects in the current phenomenon is the use of masks. Where various countries in the world have issued endemic orations after the Covid 19 pandemic occurred. Detection tool has been prepared that has been tested at the mandatory mask door, namely for mask users. In this paper, the role of the Faster R-CNN algorithm has been carried out to detect masks poured on Internet of Thinks (IoT) devices to automatically open doors for standard mask users. From the results received that testing on the detection of moving mask objects when used reaches 100% optimal at a distance of 0.5 to 1 meter and 95% at a distance of 1.5 to 2 meters so that the process of sending detection signals to IoT devices can be carried out at a distance of 1 meter at the position mask users to automatic doors.
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 4; 691--696
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Znaczenie terminu „epidemia” w starożytnej literaturze grecko-rzymskiej (Próba analizy na wybranych przykładach)
The meaning of the term epidemic in ancient greek and roman literature. An attempt at an analysis of chosen examples
Autorzy:
Iwańska, Judyta
Powiązania:
https://bibliotekanauki.pl/articles/496176.pdf
Data publikacji:
2014-11-30
Wydawca:
Towarzystwo Naukowe Franciszka Salezego
Tematy:
epidemia
zaraza
endemiczny
epidemic
pestilence
endemic
Opis:
The article discusses the meaning of the term ‘epidemic’ in the literary sources of ancient Greece and Rome. It presents an attempt at tracing the semantics of the words no/soj, loimo/j and e)pidemi/a in Greek literature and illustrates various usage of e)pidemi/a before Hippocrates. It also shows what terms were used by Roman scribes to define pestilence or points out that Homer used the word in Illiad in the meaning of: “this one who liked passionately the frightening civil war”. Sophocles used ‘epidemios’ in King Oedipus referring to dissemination and propagation of the king’s fame. The authors before Hippocrates applied this term almost to any phenomenon (people, rain, war) except for disease. Hippocrates was the first one to adapt it to medical terminology. (P. Martin, E. Martin, 2,500-year …).
Źródło:
Seminare. Poszukiwania naukowe; 2014, 35, 4; 175-184
1232-8766
Pojawia się w:
Seminare. Poszukiwania naukowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of microsatellite markers for horse-chestnut (Aesculus hippocastanum), their polymorphism in natural Greek populations, and cross-amplification in related species
Autorzy:
Walas, L.
Iszkulo, G.
Barina, Z.
Dering, M.
Powiązania:
https://bibliotekanauki.pl/articles/2078223.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Tertiary relict
endemic species
cross-amplification
polymorphism
Opis:
New nuclear microsatellite markers (SSRs) were developed for Aesculus hippocastanum, a relict tree species from the Balkan Peninsula. The development of microsatellites was done using the Illumina MiSeq PE300 platform. Out of a set of 500 SSRs designed, a subset of 13 loci was tested using 290 individuals from seven natural populations. Twelve species-specific loci were polymorphic. The number of alleles per locus ranged from 2 to 17 and expected heterozygosity from 0.089 to 0.800 with a mean value of 0.484. The population of Kalampaka had the lowest value of allelic richness (2.63) and gene diversity in comparison to the remaining populations. STRUCTURE analysis confirmed isolation of population Mariolata from the southern edge of the species range and genetic similarity among populations from the Pindos Mts. Additionally, the utility of new SSRs in 29 individuals from nine other Aesculus taxa was tested. Eleven markers gave polymorphic products for all tested species. For 24 individuals, a high-quality product was obtained for each marker. Results confirmed the utility of specific markers for future population genetics studies.
Źródło:
Dendrobiology; 2021, 85; 105-116
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic diversity of Galium cracoviense Ehrend. [Rubiaceae] - the Polish endemic plant
Autorzy:
Cieslak, E
Szelag, Z.
Powiązania:
https://bibliotekanauki.pl/articles/58412.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Rubiaceae
endemic plant
endemic species
Polska
Galium cracoviense
genetic diversity
population genetics
gene flow
glacial relict
isolated population
Opis:
Genetic diversity of Galium cracoviense, a narrow endemic species, limited to the small area in southern Poland and concentrated on Jurassic limestone outcrops near Częstochowa, was examined using the AFLP marker. Twenty nine individuals from three spatially isolated populations were used for the study. AFLP analysis yielded 157 bands, of which 110 (70%) were polymorphic. The AMOVA analysis revealed a substantially higher variation within populations (89.35%) than among them (10.65%). Values of parameters describing population genetic diversity, such as Shannon index and gene diversity index estimated for each population, were highly similar. The results indicate a high level of genetic polymorphism as well as a high genetic similarity of the isolated populations of G. cracoviense and thus an unconstrained gene flow between them. Based on the results we conclude that additional demographic and genetic studies, are necessary to monitor potential decrease of populations size resulting mainly from the mechanical destruction of plants and their habitats caused by intense tourism. Due to the small general range of occurrence, conservation should include the highest possible number of populations of G. cracoviense.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 2; 123-129
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution patterns and habitats of endemic vascular plants in the Polish Carpathians
Autorzy:
Piekos-Mirkowa, H
Mirek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/58249.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
endemic plant
Polska
Carpathians Mountains
vascular plant
habitat
distribution
Opis:
The paper deals with the richness and diversity of endemic and subendemic taxa in the Polish Carpathians. Based on critical studies in the literature and the authors' unpublished materials collected in the field, the distribution patterns of endemic species are analysed and discussed. The participation of endemics in the flora of single Carpathian ranges is assessed and analysed. The importance of the Tatra Mts as a centre of endemism is stressed. The frequency and altitudinal ranges of endemic taxa are characterized and their syntaxonomical spectrum is presented.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 4; 321-326
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of culture conditions on shikonin derivatives accumulation in nontransformed and transformed roots of Rindera graeca (A. DC.) Boiss. et Heldr. (A. DC.)
Autorzy:
Syklowska-Baranek, K.
Bolonkowska, O.
Jeziorek, M.
Szyszko, E.
Powala, J.
Pietrosiuk, A.
Powiązania:
https://bibliotekanauki.pl/articles/951268.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
Rindera graeca
Boraginaceae
endemic plant
root line
fresh biomass
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rhaponticum carthamoides regeneration through direct and indirect organogenesis, molecular profiles and secondary metabolite production
Autorzy:
Skala, E.
Grabkowska, R.
Sitarek, P.
Kuzma, L.
Wysokinska, H.
Powiązania:
https://bibliotekanauki.pl/articles/951228.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Rhaponticum carthamoides
endemic plant
perennial plant
herbaceous plant
organogenesis
seedling explant
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jodła sycylijska na skraju wyginięcia – czy istnieje szansa dla tego krytycznie zagrożonego gatunku?
Sicilian fir near to extinction – Is there any chance for this critically endangered species?
Autorzy:
Sękiewicz, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1186043.pdf
Data publikacji:
2020-02-19
Wydawca:
Polskie Towarzystwo Dendrologiczne
Tematy:
biodiversity hotspot
conservation status
endemic
Mediterranean region
Sicilian fir
threatened species
Opis:
In the mountains of the north-central Sicily (Italy), a small and isolated population of Sicilian fir (Abies nebrodensis) has survived to the present day. It is the most unique species of the Sicilian flora, not only because of its taxonomic position, but mostly because of its endemic and relict status and the serious risk of extinction. The single natural population of this extremely rare species is currently represented by only 30 mature individuals scattered over a small area in the Madonie Mountains. This species has experienced intensive population decline since the end of the 17th century, and its situation became extremely critical in the first decades of the 19th century due to deforestation and overgrazing. Consequently, Sicilian fir was considered to be extinct about three decades before being rediscovered on the Madonie Mts. in 1937. Sicilian fir is recognized as one of the most endangered coniferous species in the world. It is classified as critically endangered by IUCN, and also included in the list of 50 most endangered plant species in the Mediterranean region. Currently, the limited population size, a small proportion of reproductive individuals, habitat loss, ongoing and projected climate change, and hybridization with other species pose serious threats to survival of this species. Therefore, it is extremely important to maintain actions focusing on in situ and ex situ conservation in order to preserve and protect the existing resources of Sicilian fir, which represents the natural heritage unique to the Mediterranean.
Źródło:
Rocznik Polskiego Towarzystwa Dendrologicznego; 2019, 67; 39-48
2080-4164
2300-8326
Pojawia się w:
Rocznik Polskiego Towarzystwa Dendrologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Last two hundred individuals: rediscovery of Scilla mesopotamica Speta [Hyacinthaceae], a threatened endemic species in Turkey
Autorzy:
Eker, I
Akan, H.
Powiązania:
https://bibliotekanauki.pl/articles/57209.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
rediscovery
Scilla mesopotamica
Hyacinthaceae
threatened species
endemic species
Turkey [geogr.]
conservation
Opis:
In this paper, the rediscovery of endemic and long missing species, Scilla mesopotamica Speta which had been only known from the type gathering, is given. The species has not been collected again after Sintenis in 1888, whose specimens served Speta for description of the new taxon. In 2004, the authors found it in a steppic rocky area, near Halfeti in Şanliurfa province, South East Anatolia, Turkey. After analyzing Sintenis' original collection notes, they concluded that this area is identical with the type locality. S. mesopotamica has an extremely limited distribution and is represented by less than 200 specimens in the single known population that covers less than 50 m2. Taxonomy of the species, detailed description with illustrations, geographical distribution, habitat, ecology and status of IUCN extinction risk and some comments on conservation of the plant are also presented.
Źródło:
Acta Societatis Botanicorum Poloniae; 2010, 79, 1; 31-36
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical composition of essential oil and antioxidant activity of Postia puberula, an endemic species from Iran
Autorzy:
Hemmati Hassan Gavyar, P.
Amiri, H.
Powiązania:
https://bibliotekanauki.pl/articles/12614017.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Iran
endemic species
Postia puberula
chemical composition
essential oil
antioxidant activity
Opis:
Essential oils from the leaves, stems and flowers of Postia puberula at the flowering stage were analyzed using GC and GC/MS. The results showed that leaves are abundant of cis-3-hexenyl benzoate (10.75%), benzyl benzoate (8.16%) and caryophyllene oxide (8.12%). The main compounds of stems were benzyl benzoate (21.92%), E-nuciferol (11.58%) and dibutyl phthalate (7.08%), while major components of flowers were benzyl benzoate (9.99%), caryophyllene oxide (8.14%) and E-nuciferol (8.13%). The antioxidant activities of methanol extract were evaluated by DPPH and β-carotene/linoleic acid assays. The results showed that in both methods, leaves had stronger antioxidant activity than other organs.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 1; 119-128
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A spatial study on Keshan disease prevalence and selenoprotein P in the Heilongjiang Province, China
Autorzy:
Wang, Yanan
Zhang, Xiao
Wang, Tong
Hou, Jie
Guo, Zhongying
Han, Xiaomin
Zhou, Huihui
Liang, Hong
Xing, Zhifeng
Powiązania:
https://bibliotekanauki.pl/articles/2095499.pdf
Data publikacji:
2021-09-03
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
prevalence
biomarker
prevention and control
endemic cardiomyopathy
selenoprotein P
spatial regression analysis
Opis:
ObjectivesFew spatial studies on Keshan disease (KD) prevalence and serum selenoprotein P (SELENOP) levels have been reported in the Heilongjiang Province, China. This study aimed to investigate the spatial relationships between KD prevalence, SELENOP levels, and the socio-economic status for the precise prevention and control of KD.Material and MethodsThe study was carried out in all the 66 KD endemic counties in the Heilongjiang Province using a non-probability sampling method of a key village survey based on county-wide case-searching. The participants completed a questionnaire and had their serum SELENOP levels measured using enzyme-linked immunosorbent assay. Thematic maps were created, and spatial regression analysis was performed by ordinary least squares using ArcGIS 9.0.ResultsOverall, 53 676 residents were surveyed based on case-searching, and blood samples were collected from 409 residents. In total, 50 chronic KD cases were identified with a total prevalence of 9.3/10 000 population. The prevalence in the Tangyuan County was the highest (250/10 000 population). The mean serum SELENOP level was 13.96 mg/l. The spatial regression analysis showed that KD prevalence positively correlated with SELENOP levels and negatively with per capita disposable income among rural residents.ConclusionsThe Tangyuan County should be considered for the precise prevention and control of KD. Further research is necessary to verify the reliability of SELENOP for estimating body selenium levels, and to better understand the relationship between selenium intake and KD in the investigated area.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2021, 34, 5; 659-666
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Floristic inventory of the habitats of the endangered montane grassland bird Nilgiri Pipit (Anthus nilghiriensis) at Palani Hills and Nilgiri Hills of southern Western Ghats, India
Autorzy:
Arigela, Ravi Kiran
Singh, Rajeev Kumar
K, Althaf Ahamed Kabeer
CK, Vishnudas
Powiązania:
https://bibliotekanauki.pl/articles/2183582.pdf
Data publikacji:
2022-03-30
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
endemic
grasses
invasive
Kerala
native
Tamil Nadu
threat
endemiczny
trawy
inwazyjny
zagrożenie
Opis:
The vegetation in the habitats of the endemic montane grassland bird Nilgiri Pipit at Palani Hills and Nilgiri Hills of southern Western Ghats is delineated in this study. Threats to the habitats of the Nilgiri Pipit by invasive plants species is also discussed.
W niniejszym opracowaniu scharakteryzowano florę i roślinność w siedliskach świergotka, endemicznego ptaka łąk górskich, występującego w Palani Hills i Nilgiri Hills w południowych Ghatach Zachodnich. Wyjaśniono zależność między endemicznymi trawami, a zagrożonym świergotkiem górskim. Omówiono tu również zagrożenia siedlisk świergotka przez inwazyjne gatunki roślin.
Źródło:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2022, 7; 129-144
2543-8832
2545-0999
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical Approaches to Trust; Their Implications for the Resolution of Intergroup Conflict
Autorzy:
Sztompka, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/441104.pdf
Data publikacji:
2015
Wydawca:
Wyższa Szkoła Europejska im. ks. Józefa Tischnera
Tematy:
endemic conflict
conflict resolution
trust
public sphere
konflikt endemiczny
rozwiązywanie konfliktów
zaufanie
sfera publiczna
Opis:
In the rich and evolving research of trust there are two opposite theoretical approaches. One in the tradition of Alexis de Tocqueville (1835), Robert Putnam (1993), Francis Fukuyama (1995) and many others considers trust as a quality of interpersonal relations emerging from below, turning into shared cultural resource and producing viable democracy and prosperous economy. The causal vector is from micro to macro, from interpersonal networks to organizations, institutions and the state. This is the dominant approach. But there is also an alternative perspective which claims that trust is facilitated or even enforced by the “civilized public sphere” (Papakostas 2012), or “institutionalized skepticism” (Cleary and Stokes 2006), i.e. the rational political and economic organization, and particularly the clear, stable, transparent and consistent law universalistically and efficiently applied and executed. Here the causal vector is from the state, organizations and institutions toward interpersonal trust, from macro to micro. Both approaches should not be considered as competing but rather as complementary. They have also different but complementary implications concerning the resolution of intergroup conflicts by building trust. For example, the earlier suggests cultivating trust from below by encouraging personal contacts, mutual acquaintance, cooperation, participation in common voluntary ventures by hostile groups. The latter approach would rather emphasize the need for enforcing trustworthiness by overarching, higher-level structure of organizations, institutions and laws assuring accountability, stability, transparency of social relations, through control and surveillance of both feuding parties. It is only the parallel employment of emergence and enforcement of trust that opens the possibility of gradual resolving of intergroup conflict.
W bogatych i rozwijających się badaniach na temat zaufania można wyróżnić dwa kontrastujące ze sobą podejścia teoretyczne. Pierwsze, zakorzenione w tradycji autorów takich jak Alexis de Tocqueville (1835), Robert Putnam (1993) czy Francis Fukuyama (1995), ujmuje zaufanie jako jakość relacji międzyludzkich, która pojawia się oddolnie by następnie stać się kulturowym zasobem niezbędnym do utrzymania trwałej demokracji i dobrze prosperującej gospodarki. Wektor przyczynowy przebiega tu w kierunku od mikro do makro – od sieci międzyludzkich po organizacje, instytucje i państwo. To podejście jest podejściem dominującym. Ale istnieje też ujęcie alternatywne, zgodnie z którym zaufanie powstaje dzięki, lub w całości za sprawą, „cywilizowanej sfery publicznej” (Papakostas, 2012) czy też „zinstytucjonalizowanego sceptycyzmu (Cleary and Stokes, 2006), na który składa się racjonalna organizacja polityczno-gospodarcza, a w szczególności przejrzyste, stabilne i konsekwentne prawo, które jest powszechnie i skutecznie wdrażane i egzekwowane. Tutaj wektor przyczynowy biegnie w kierunku makro-mikro, od państwa, organizacji i instytucji do zaufania na poziomie interpersonalnym. Te dwa pojęcia należy traktować nie jako sprzeczne, lecz uzupełniające się. Co ważne ich implikacje w zakresie rozwiązywania konfliktów grupowych za pomocą budowania zaufania też się uzupełniają. I tak na przykład pierwsze podejście zakłada kultywowanie zaufania oddolnie poprzez promowanie kontaktów międzyludzkich, współpracy i dobrowolnego udziału członków wrogich grup we wspólnych przedsięwzięciach. Drugie natomiast kładzie raczej nacisk na potrzebę wzmacniania zaufania przy pomocy odgórnych struktur organizacji i instytucji oraz praw gwarantujących odpowiedzialność, stabilność i przejrzystość relacji społecznych poprzez kontrolę i uważne obserwowanie członków zwaśnionych grup. Bowiem tylko połączenie przejrzystości i konsekwentnego budowania zaufania daje możliwość stopniowego rozwiązywania konfliktów grupowych.
Źródło:
Kultura i Polityka; 2015, 17; 125-134
1899-4466
Pojawia się w:
Kultura i Polityka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Arbuscular mycorrhiza of endemic and endangered plants from the Tatra Mts
Autorzy:
Zubek, S
Turnau, K.
Blaszkowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/57673.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
conservation
endemic plant
Tatras Mountains
mycorrhizal status
endangered plant
botany
arbuscular mycorrhiza
plant species
Opis:
The mycorrhizal status of 24 plant species considered as endemic, endangered in Poland and included in the IUCN Red List of Threatened Plants is reported. Selected plants and rhizosphere soil samples were collected in the Tatra Mts (Western Carpathians). Individuals of seriously threatened taxa were obtained from seeds and inoculated with available AM fungal strains under laboratory conditions. AM colonisation was found in 16 plants; 9 species were of the Arum-type, 4 - Paris and 3 taxa revealed intermediate morphology. The mycelium of the fine endophyte (Glomus tenue) and dark septate fungi (DSE) were observed in the material collected in the field. 20 AMF species (Glomeromycota) found in the rhizosphere of the investigated plants were reported for the first time from the Tatra Mts. The results provide information that might be useful for conservation and restoration programmes of these species. Application of AMF in active plant protection projects is discussed.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The checklist of Impatiens Riv. ex L. (Balsaminaceae) in Nilgiri and Palani Hills of southern Western Ghats (India)
Autorzy:
S Jeevith
Arigela, Ravi Kiran
Rajeev Kumar Singh
K Althaf Ahamed Kabeer
C Rajasekar
C Kunhikannan
Powiązania:
https://bibliotekanauki.pl/articles/2183573.pdf
Data publikacji:
2022-07-26
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
Balsams
Endemic
Grasslands
Shola forests
Western Ghats
niecierpki
endemiczne
lasy Shola
łąki
Ghaty Zachodnie
Opis:
A comprehensive checklist of the genus Impatiens Riv. ex L. (Balsaminaceae) in Nilgiri and Palani of southern Western Ghats, India is presented. After thorough field explorations in these areas from 2012 to 2020 in different seasons, 38 species of Impatiens are recorded, in which 6 species are endemic to Western Ghats and 26 species are endemic to southern Western Ghats of India. Horticultural potential of 18 endemic species of balsam is also discussed.
W artykule zamieszczono obszerną listę gatunków z rodzaju Impatiens Riv. ex L. (Balsaminaceae), odnotowanych w Nilgiris i na Wzgórzach Palanis (południowa część Ghatów Zachodnich w Indiach). Po dokładnych badaniach terenowych, przeprowadzonych w różnych porach roku w latach 2012-2020, zarejestrowano na analizowanym obszarze 38 gatunków niecierpka, w tym 6 gatunków endemicznych dla całych Ghatów Zachodnich i 26 gatunków dla południowej części Ghatów Zachodnich. Krótko omówiono również potencjał ogrodniczy 18 endemicznych gatunków niecierpków.
Źródło:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2022, 7; 9-22
2543-8832
2545-0999
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dziwidło olbrzymie (Amorphophallus titanum), niezwykła bylina sumatry
Titan arum (Amorphophallus titanum), amazing perennial plant of Sumatra
Autorzy:
Wiatrowska, Blanka
Węgiel, Andrzej
Kęsy, Mateusz
Powiązania:
https://bibliotekanauki.pl/articles/1033714.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Przyrodników im. Kopernika
Tematy:
Amorphophallus titanum
endemic species
lowland equatorial evergreen rainforests
Sumatra
wiecznie zielone lasy tropikalne
gatunek endemiczny
Opis:
Amorphophallus titanum niezwykle rzadko obserwowany, endemiczny gatunek Sumatry, jest byliną wykształcająca jeden z największych kwiatostanów świata. Osiągająca ok. 3 m wysokości kolba i ujmująca ją purpurowa pochwa kwiatostanowa, skutecznie wabią zapylające roślinę chrząszcze, błonkówki oraz muchówki, które zwiedzione intensywnym zapachem padliny, ciepłem wydzielanym przez kwiatostan i jego barwą, kierują się ku znajdującym się w jego wnętrzu kwiatom. Mimo zadziwiających rozmiarów dziwidła olbrzymiego, jego biologia nie została dobrze poznana, a powierzchnia okołorównikowych lasów dwuskrzydlcowych Azji Południowo-Wschodniej, w których znajdują się jego nieliczne, naturalne stanowiska, z roku na rok kurczy się. Deszczowe lasy Indonezji i Malezji, będące jednym z głównych centrów różnorodności biologicznej na świecie, wycinane lub wypalane są bowiem pod plantacje olejowca gwinejskiego (Elaeis guineensis), które w samej Indonezji zajmują już ok. 7,7 mln ha.
Amorphophallus titanum, an extremely rare, endemic Sumatran species, is a perennial plant which forms one of the largest inflorescences in the world. Reaching up to approx. 3 m in height, the spadix is surrounded by a purple flower sheath which attracts the pollinators - beetles, hymenoptera and flies. Those, deceived by an intense scent of carrion emitted by the flowers and also by its colour, are lured to the flowers hidden inside the spadix. Despite its remarkable size, A. tutanum's biology has not been well known. The equatorial area of Dipterocarpaceae forests in SE Asia, which is the natural habitat of A. titanium, is dwindling. The Indonesian and Malay rainforests, ones of the main biodiversity hotspots in the world, are being cut and burnt down in order to establish African oil palm (Elaeis guineensis) plantations, which only in Indonesia cover an area of approx. 7,7 mln ha.
Źródło:
Kosmos; 2018, 67, 2; 257-262
0023-4249
Pojawia się w:
Kosmos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of water conditions on the phenology and age structure of Luronium natans [L.] Raf. populations
Autorzy:
Szmeja, J
Bazydlo, E.
Powiązania:
https://bibliotekanauki.pl/articles/56879.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
development stage
water condition
Luronium natans
age structure
European endemic plant
aquatic plant
phenology
population
Opis:
The study presents the results of the analysis of development stages of Luronium natans (L.) Raf. depending on water conditions (pH, light, total nitrogen, total phosphorus, organic carbon) in 21 populations in north-western Poland. The fractions of seedlings, juvenile, mature and generative stems, as well as the course of phenological phenomena were determined. Seedlings are sparse and can be found from May to July. Most of them occur in waters ranging from slightly acid to neutral (pH 6.0-7.0) with TP concentrations of 10-20 µg dm-3, TN concentrations < 1.0 mg dm-3 and DOC concentrations of 3.5-5.0 mg dm-3, on a mineral (5-10% OC) and fairly well lit (31-40% PAR) substrate. The generative phase lasts from May to October. The flowering period is between August and mid-September. Only 35.2±9.4% of flowering stems produce fruits. The plant flowers abundantly in waters with total nitrogen concentrations > 1.2 mg dm-3, that is above the level of TN concentrations most favourable to seedlings and both juvenile and mature individuals. TP and DOC concentrations, and light intensity (PAR) do not influence the size of the generative stems fraction in populations. However, sediment structure is of importance in this respect: about 62.9% of stems flower and fruit on a mineral substrate (< 1% OC), whereas only 17.4% do so on an organic one. The results of this study may be useful in the conservation of this endangered European endemic species.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical Modeling of Control Strategies for Visceral leishmaniasis
Autorzy:
Onyekwelu, Onuorah Martins
Baker, Nasasira
Powiązania:
https://bibliotekanauki.pl/articles/1839477.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Stability
equilibrium
parameterization
endemic
basic reproductive number
simulation
visceral Leishmaniasis
Visceral leishmaniasis
kala-azar
Cutaneous leishmanisis
Opis:
In this paper, a deterministic mathematical model for the transmission dynamics of Visceral leishmaniasis (VL) was formulated and analyzed. The basic reproductive number R0 was obtained using the next generation matrix method. The model which was parameterized using the 2011 cases of Visceral Leishmaniasis in South Sudan, was used to assess two control measures. Numerical simulation reveals that the exposed population is reduced by high detection rate, and low biting rate of sandflies. Further, our model simulation gave the values of the contact rate of susceptible human, α1 and the detection rate of new cases, σ at which the basic reproductive number is less than one, (R0 < 1), equal to one (R0 = 1) and greater than one (R0 > 1).
Źródło:
World News of Natural Sciences; 2021, 37; 102-116
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SEM observations of pollen grains, fruits and seeds of the Pieniny Mountains [South Poland] endemic species Erysimum pieninicum [Zapal.] Pawl. [Brassicaceae]
Autorzy:
Maciejewska-Rutkowska, I
Bednorz, L.
Fujiki, T.
Powiązania:
https://bibliotekanauki.pl/articles/58978.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
electron microscope
Erysimum pieninicum
fruit morphology
Polska
seed morphology
botany
pollen morphology
Brassicaceae
Pieniny Mountains
forest
endemic species
Opis:
Erysimum pieninicum (Zapał.) Pawł. (Brassicaceae) is an endemic species, growing only in Pieniny Mts. The aim of the presented work was to investigate its pollen morphology as well as its ultrastructural traits of pericarp and seed-coat. Pollen grains of this species were of small size, 3-zonocolpate with reticulate ornamentation. The external siliqua surface was of rugose sculpture, covered by numerous, stellate hairs. The internal surface of the fruit was naked and characterized by striate sculpture. The seed-coat ornamentation of E. pieninicum was of blister type.
Źródło:
Acta Societatis Botanicorum Poloniae; 2007, 76, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Salix x velchevii and S. x ardana [Salicaceae] - two new willow hybrids from the Bulgarian Rhodope Mts.
Autorzy:
Zielinski, J
Petrova, A.
Pancheva, Z.
Powiązania:
https://bibliotekanauki.pl/articles/59218.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Salix x velchevii
Salix x ardana
Salix xanthicola
endemic species
Salicaceae
willow
hybrid
new hybrid
Bulgaria
Rhodope Mountains
Opis:
Two previously unknown willow hybrids, Salix × velchevii (S. amplexicaulis Bory × S. xanthicola K.I. Chr.) and S. × ardana (S. alba L. × S. xanthicola K.I. Chr.), are described from the Bulgarian Rhodope Mts. This is the first report on hybridization in the endemic Balkan species S. xanthicola.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 2; 145-148
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic diversity of Galium cracoviense, G. oelandicum and G. sudeticum (Rubiaceae)
Autorzy:
Cieslak, E.
Szelag, Z.
Powiązania:
https://bibliotekanauki.pl/articles/58499.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
genetic diversity
Galium cracoviense
Galium oelandicum
Galium sudeticum
Rubiaceae
endemics
Leptogalium section
Galium
endemic species
genetic variability
geographic range
Opis:
Galium sect. Leptogalium Lange in NE Europe is represented by few, local endemic species which occur in the area covered by the continental ice sheet in the Pleistocene period. They are: G. cracoviense Ehrend. in S Poland, G. oelandicum (Sterner & Hyl.) Ehrend. in SE Sweden and G. sudeticum Tausch in SW Poland and N Czech Republic. 55 individuals from five populations of these species were analysed using AFLP markers. A total of 193 AFLP bands were detected using three combinations of primers; out of them 159 proved polymorphic (82.4%). The lowest values of Shannon's index and Nei's gene diversity were noted for G. oelandicum and the highest ones for G. sudeticum. The results indicate a relatively high level of genetic variability in each of endemic species in spite of that the studied species occupy very small areas and are represented by a low number of populations. We conclude that additional, demographic and genetic studies are necessary to monitor potential decrease of populations' size resulting mainly from the mechanical destruction of plants and their habitats caused by intense tourism or other human activities (as agriculture, e.g. grazing).
Źródło:
Acta Societatis Botanicorum Poloniae; 2010, 79, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growing the endangered species Astragalus nitidiflorus in the nursery: fertilization rate affects growth, and leaf nutrient and chlorophyll contents
Autorzy:
Vicente, M.J.
Martínez-Sánchez, J.J.
Franco, J.A.
Bañón, S.
Powiązania:
https://bibliotekanauki.pl/articles/11858781.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Spain
plant cultivation
Astragalus nitidiflorus
endangered species
endemic plant
plant growth
leaf nutrient content
chlorophyll content
fertilization rate
nodulation
Opis:
Astragalus nitidiflorus is an endangered legume endemic to the southeast of the Iberian Peninsula. This species develops symbiotic relationships with N-fixing bacteria. However, the problem of isolating its rhizobia has not been solved. Because poor N fixation in plants can be corrected by fertilization, the effect of N-P-K fertilizers on growth, leaf chlorophyll and mineral ions was studied. Plants of A. nitidiflorus were grown in 100%-substrate with different N-P-K fertilizer rates (mg l–1): 1-1-8 (S0), 69-29-35 (SL), 144-43-131 (SM) and 245-58-235 (SH). A treatment with substrate plus soil from the natural habitat and no fertilizers (T0) was included. The reference foliar contents of N, P and K were 42.5, 3.5 and 36.5 mg g–1, respectively. Although the species did not form root nodules when grown in substrate, T0 plants produced active nodules that allowed the plants to grow properly without fertilization. In the absence of nodules, both N fertilization (~144 mg l–1) and Fe fertilization (>12 mg l–1) are vital, as is, to a lesser extent, K fertilization (~75 mg l–1 K2O). The S0 and SL reduced leaf chlorophyll, while SM prevented its degradation.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 4; 129-136
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cochlearia polonica Frohl. (Brassicaceae), a narrow endemic species of southern Poland: history of conservation efforts, overview of current population resources and genetic structure of populations
Autorzy:
Cieslak, E.
Kazmierczakowa, R.
Ronikier, M.
Powiązania:
https://bibliotekanauki.pl/articles/56510.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Cochlearia polonica
Brassicaceae
endemic species
Southern Poland
history
conservation effort
current population
population resource
genetic structure
genetic variation
population structure
Opis:
Cochlearia polonica Fröhl. (Brassicaceae) is one of the rarest species in the Polish and European flora and a taxon endemic to a very small area in southern Poland. Due to industrial activities and subsequent transformation of habitats it was extinct in all natural localities around 1994. The persistence of the species was ensured thanks to the active protection efforts including a series of transplantations based on the material from the last and decreasing natural population. The history of conservation efforts of C. polonica provides a model example of successful active protection in the European flora. Here, we provide a complete review comprising the following aims: (i) outline of the discovery and taxonomic conceptions on C. polonica, (ii) review of conservation efforts aimed at preserving its populations, (iii) description of the existing population resources, and (iv) analysis of the genetic structure of all existing populations based on previously published data and new, supplementary results.
Źródło:
Acta Societatis Botanicorum Poloniae; 2010, 79, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ultrastructural changes in blood cells in the hematopoietic organs of Lake Baikal fish exposed to phenol
Autorzy:
Yakhnenko, V.
Klimenkov, I.
Belyshenko, A.
Powiązania:
https://bibliotekanauki.pl/articles/363134.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
blood cells
endemic fish
hematopoietic organs
immune system
immunocytes
nonendemic fish
krwinki
ryby endemiczne
układ krwiotwórczy
układ odpornościowy
immunocyty
ryby nieendemiczne
Opis:
Baikal Lake fish: stone sculpin (Paracottus knerii), yellowfin (Cottocomephorus grewigkii) and perch (Perca fluviatilis) were exposed for 14 days to phenol (6mg˖L-1). The reaction of blood cells in all studied species had a similar character, whilst, also revealing distinctions. Fast activation of immune processes was found in the pelagic yellowfin. These changes were slower at the coastal stone sculpin. Quantitative changes of blood cells were minor in the coastal nonendemic perch. After four days of exposure, the cells of fish showed signs of destructive processes: strong vacuolization of cytoplasm and partial destruction of the cell membrane. In the cell nucleus the chromatin was condensed, the perinuclear space had expanded and the nuclear membrane had been partly destroyed. In another experiment, stone sculpin and perch were first exposed to phenol for 30 days and then they were kept for another 30 days in water without phenol. In the kidneys and spleen of stone sculpin the processes of lymphopoiesis were observed, whereas in perch the processes of lymphopoiesis and myelopoiesis occurred.
Źródło:
Environmental Biotechnology; 2014, 10, 2; 73-79
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 34

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