Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Seeds" wg kryterium: Wszystkie pola


Tytuł:
Garum or Grain? Crimea and the Provisioning of Constantinople (7th to 9th centuries)
Autorzy:
Curta, Florin
Powiązania:
https://bibliotekanauki.pl/articles/31234013.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Crimea
lead seals
crop cultivation
silos
cereal seeds
agricultural implements
amphorae
fishing industry
Opis:
Historians have relied for too long on written sources (the letters that Pope Martin I wrote from Cherson, as well as De Administrando Imperio) to assess the economic situation in the Crimea, especially in Cherson, during the so-called Dark Ages (7th to 9th centuries). Many still believe that that city could not have survived without shipments of grain from the outside, particularly from the lands along the southern coast of the Black Sea. Seals of Byzantine officials found in Cherson tell a different story, as they indicate commercial exchanges between the Crimea and Constantinople. If the peninsula participated in trade, something must have been offered in exchange for the goods coming from the Capital. The archaeological evidence strongly suggests that during the 8th and 9th centuries, the hinterland of Cherson, as well as the Kerch Peninsula (eastern Crimea) witnessed rapid economic development, largely based on the cultivation of crops. Silos found on several settlement sites, both open and fortified, suggest a surplus, which was most likely commercialized. If so, the closest markets were across the Black Sea, to the south, primarily in Constantinople. Other commodities, such as wine transported in amphorae, traveled in the opposite direction, across the Sea of Azov and into the interior of Khazaria. In exchange, the peninsula received shipments of grain, which were then re-exported to Constantinople. Far from relying on shipments of grain from the Capital, Cherson and the rest of the Crimean Peninsula in fact supplied Constantinople with food. Numerous vats for the production of fish sauce have been found in Cherson, and many were in operation before 900. A good deal of the garum served at tables in Constantinople between the 7th and the 9th century must have come from Cherson. The archaeological evidence therefore calls for a re-assessment of the economic situation in the Crimean Peninsula during the “Dark Ages”.
Źródło:
Studia Ceranea; 2023, 13; 271-286
2084-140X
2449-8378
Pojawia się w:
Studia Ceranea
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
_1H NMR spectra of trypsin inhibitors from seeds of Cucurbitaceae plants. Resonance signals of methyl groups.
Autorzy:
Siemion, Ignacy
Sobczyk, Katarzyna
Wilusz, Tadeusz
Polanowski, Antoni
Powiązania:
https://bibliotekanauki.pl/articles/1046025.pdf
Data publikacji:
1984
Wydawca:
Polskie Towarzystwo Biochemiczne
Źródło:
Acta Biochimica Polonica; 1984, 31, 2; 207-215
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A modern method of obtaining organic seeds of onion and radish
Nowoczesna metoda pozyskiwania nasion ekologicznych cebuli i rzodkiewki
Autorzy:
Domoradzki, M.
Szymura, J.
Lamkiewicz, J.
Kaniewska, J.
Powiązania:
https://bibliotekanauki.pl/articles/956431.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
organic seeds
seed technology
radish seed
onion seed
nasiona ekologiczne
obróbka nasion
rzodkiewka
cebula zwyczajna
Opis:
The paper presents the results of obtaining radish and onion seed on an organic farm and the results of processing seeds after harvesting. The proposed technology of seeds preparation for sowing involves processes of hydraulic separation, washing and leaching, drying, calibration, inoculation and coating. Plants were protected with preparations authorized for organic farming. Obtained organic seed material is consistent with current quality requirements.
Opracowano technologię przygotowania nasion do siewu na plantacje ekologiczne i wybrano metody obróbki po zbiorze nasion rzodkiewki i cebuli zwyczajnej. Celem pracy było opracowanie procedury pozyskania materiału siewnego tych nasion o wysokiej jakości, zgodnej z normami nasiennymi. Opracowane procesy obejmują: separację hydrauliczną, mycie, suszenie oraz kalibrację. Przed siewem należy wykonać otoczkowanie nasion ekologicznych. Podczas otoczkowania nasion inokulowano powierzchnię nasion zarodnikami grzyba Polyversum i Trichoderme viride w ilości 10 szt. zarodników na nasiono lub zaprawiano chitosanem w ilości 1% do masy nasion. Suszenie nasion inokulowanych powinno odbywać się w temperaturze obniżonej do 35°C, co wynikało z badań nad przeżywalnością mikroorganizmów. Uzyskano ekologiczny materiał nasienny zgodny z obowiązującymi wymaganiami jakościowymi, który skierowano do handlu.
Źródło:
Agricultural Engineering; 2015, 19, 1; 35-45
2083-1587
Pojawia się w:
Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Novel Bio-Waste Incorporated Alginate Sorbent for De-Fluoridation of Water
Autorzy:
Ayyappan, C. S.
Sreeja, S.
Bhalambaal, V. M.
Powiązania:
https://bibliotekanauki.pl/articles/124891.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
tamarind seeds
defluoridation
sodium alginate
column study
water purification
Opis:
This study evaluates the feasibility of using tamarind (Tamarindus indica) seed powder for de-fluoridation of fluoride contaminated water. Batch study confirmed that tamarind seeds in dry powder form could remove 87% of fluoride from water. This bio-sorbent can be used effectively in areas where fluoride concentrations are above the permissible limits of 1.5 mg·l-1 as per WHO Standard, 1984. Tamarind seed powder was incorporated in a matrix of sodium alginate and made into gel-beads. The beads were tested for de-fluoridation efficiency by conducting column studies. The effect of various factors, such as flow rate, retention time, and the number of runs on the efficacy of fluoride removal was also studied. The results revealed that flow rate did not seem to have much effect on the percentage fluoride removal but the fluoride concentration decreased drastically upon greater retention time and multiple runs.
Źródło:
Journal of Ecological Engineering; 2015, 16, 4; 8-13
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A novel proteomic approach to analyse methionine oxidation reveals protein oxidation patterns in Arabidopsis seeds
Autorzy:
Meimoun, P.
Valot, B.
Job, D.
Bailly, C.
Powiązania:
https://bibliotekanauki.pl/articles/80575.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
reactive oxygen species
nucleic acid
protein
oxidation
methionine
methionine sulphoxide reductase
protein oxidation
Arabidopsis
seed
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A protocol for synthetic seeds from Salvia officinalis L. shoot tips
Autorzy:
Grzegorczyk, I.
Wysokinska, H.
Powiązania:
https://bibliotekanauki.pl/articles/19244.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
synthetic seed
seed
Salvia officinalis
shoot tip
calcium alginate
cold storage
encapsulation
sage
perennial plant
Opis:
Shoot tips excised from shoot culture of Salvia officinalis were encapsulated in 2% or 3% (w/v) sodium alginate and exposed to 50 mM calcium chloride for complexation. Immediately or after 6, 12 or 24 weeks of storage at 4°C, the synthetic seeds were cultured for 6 weeks on half-strength MS medium supplemented with indole-3- acetic acid (IAA) (0.1 mg/l) and solidified with 0.7% agar. The frequency of shoot and root emergence from encapsulated shoot tips was affected by the concentrations of sodium alginate and additives in the gel matrix (sucrose, gibberellic acid, MS nutrient medium) as well as duration of storage. The frequency of shoot and root induction of non-stored synthetic seeds was highest with shoot tips encapsulated with 2% sodium alginate containing 1.5% sucrose and 0.5 mg/l gibberellic acid (GA3). Shoot tips maintained their viability and ability to develop shoots even after 24 weeks of storage when they were encapsulated in 3% alginate with 1/3 MS medium, sucrose (1.5%) and GA3 (0.25 mg/l). Root formation tended to decrease with storage time. Overall, 90% of the plantlets derived from stored and non-stored synthetic seeds survived in the greenhouse and grew to phenotypically normal plants. This procedure can enable the use of synthetic seed technology for germplasm conservation of S. officinalis, a plant species of high medical and commercial value.
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2011, 53, 1
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A stand for quasi-static loading measurements of seeds
Stanowisko do pomiaru obciazen quasi-statycznych nasion
Autorzy:
Sosnowski, S
Czerniakowski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/810218.pdf
Data publikacji:
1993
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
obciazenia sciskajace
odpornosc nasion
stanowisko pomiarowe
nasiona
obciazenia quasistatyczne
Opis:
This paper presents the description and application of the apparatus for quasi-static loading of leguminous seeds.
Wykonane stanowisko pomiarowe umożliwia określać wytrzymałość nasion przy obciążeniach ściskających w warunkach quasi-statycznych. Zastosowane czujniki i aparatura rejestrująca pozwalają uzyskać wykresy sił obciążających i deformacji nasion w poszczególnych pomiarach. Zakres badanych sił wynosi 0 - 600 N.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1993, 399; 241-242
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Theoretical Analysis of Cereal Seed Screening in a String Sieve
Autorzy:
Kaliniewicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/298351.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
string sieve
modelling
seeds
angle of inclination
Opis:
The conditions of the screening process in a fixed string sieve designed by the author have been formulated. The string sieve was designed for separating seeds of 5 cereal species (wheat, rye, barley, oats and triticale). The width of the separating groove was set at 1 mm at the beginning of the screen and 5 mm at the end of the screen. It has been assumed that seeds have a spheroidal shape and that their motion is initiated by positioning the string sieve at an appropriate angle. The results of a theoretical analysis revealed that at the given parameters of a string sieve, the above angle is determined only by the thickness and width of separated seeds. The sieve’s angle of inclination should be set at 45° to propel seeds into motion and at 50° to ensure the continuity of the screening process. Such a large setting angle is not recommended because it increases the sieve’s height and deteriorates the quality of the separation process. The problem can be solved by setting the separator bucket into motion and separating seeds at a small inclination angle of the string sieve.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2013, 16(3); 234-247
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acaconin, a chitinase-like antifungal protein with cytotoxic and anti-HIV-1 reverse transcriptase activities from Acacia confusa seeds
Autorzy:
Lam, Sze
Ng, Tzi
Powiązania:
https://bibliotekanauki.pl/articles/1040370.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
anti-HIV-1 reverse transcriptase
Acacia confusa
antifungal protein
antitumor
Opis:
From the seeds of Acacia confusa, a chitinase-like antifungal protein designated as acaconin that demonstrated antifungal activity toward Rhizoctonia solani with an IC50 of 30±4 µM was isolated. Acaconin demonstrated an N-terminal sequence with pronounced similarity to chitinases and a molecular mass of 32 kDa. It was isolated by chromatography on Q-Sepharose, SP-Sepharose and Superdex 75 and was not bound by either ion exchanger. Acaconin was devoid of chitinase activity. The antifungal activity against Rhizoctonia solani was completely preserved from pH 4 to 10 and from 0°C to 70°C. Congo Red staining at the tips of R. solani hyphae indicated inhibition of fungal growth. However, there was no antifungal activity toward Mycosphaerella arachidicola, Fusarium oxysporum, Helminthosporium maydis, and Valsa mali. Acaconin inhibited proliferation of breast cancer MCF-7 cells with an IC50 of 128±9 µM but did not affect hepatoma HepG2 cells. Its IC50 value toward HIV-1 reverse transcriptase was 10±2.3 µM. The unique features of acaconin include relatively high stability when exposed to changes in ambient pH and temperature, specific antifungal and antitumor actions, potent HIV-reverse transcriptase inhibitory activity, and lack of binding by strongly cationic and anionic exchangers.
Źródło:
Acta Biochimica Polonica; 2010, 57, 3; 299-304
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accelerated and natural ageing processes change the properties of plasma membrane in Norway spruce (Picea abies (L.) Karst.) seeds during storage
Autorzy:
Nowakowska, J
Rakowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/41613.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
plasma membrane
Norway spruce
natural aging process
Picea abies
vitality
vigor
storage
seed
Opis:
The present study examines the mechanism of natural and accelerated ageing processes in Norway spruce (Picea abies [L.] Karst.) seeds stored at low temperature for one (control) and eight years. The analyses of vitality, electrolyte leakage, protein composition and activity of the proton-pump ATPase (P-ATPase, EC.3.6.1.35) in plasma membrane of Norway spruce seeds have been investigated. Seeds collected in 1999 from northeastern Poland have been treated with accelerated ageing method and compared to the seeds of the same provenance, collected in 1992 (control). The vigor and the vitality of the Norway spruce seeds depend on the age of seeds. After 6 days of experiment both samples of seeds (artificially aged seeds and control) expressed the same percentage of germination and similar electrolyte leakage. Analysis of protein composition in the extracts showed an increased amount of some low molecular-weight proteins in artificially and naturally aged seeds compared to the control. Our results indicate similar level of P-ATPase activity in natural, artificially aged and control seeds. This suggests that natural ageing process can involve changes in plasma membrane protein composition but does not affect the P-ATPase activity.
Źródło:
Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Activity of phosphofructokinase and phosphoenolopyruvate carboxylase in Norway maple (Acer platanoides L.) seeds during dormancy breaking
Autorzy:
Krawiarz, K
Szczotka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/41615.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
phosphoenolopyruvate carboxylase
dormancy breaking
glucose
activity
sucrose
phosphofructokinase
Norway maple
Acer platanoides
seed
Opis:
We analysed changes in the activity of phosphofructokinase (PFK) and phosphoenolopyruvate carboxylase (PEPC), and in the glucose and sucrose contents of Norway maple seeds stratified at 3°C (dormancy broken) or treated at temperature 15°C (dormancy not broken). We found that changes in the activity of enzymes are not linear, and 2-3 stages may be distinguished. Dormancy breaking and seed germination is associated with a high activity of PFK and PEPC, and a high glucose level in embryo axes.
Źródło:
Dendrobiology; 2002, 47
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adjustment of grain combine harvester assemblies to decrease damage and quantitative losses of rape seeds during one-stage harvest
Regulacje zespolow kombajnu w celu ograniczenia uszkodzen i strat ilosciowych nasion rzepaku podczas zbioru jednoetapowego
Autorzy:
Grochowicz, M
Szpryngiel, M.
Powiązania:
https://bibliotekanauki.pl/articles/797980.pdf
Data publikacji:
1995
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
rzepak
straty
nasiona
kombajny zbozowe
uprawa roslin
zbior kombajnowy
adaptacja
zbior
zbior jednofazowy
uszkodzenia nasion
Opis:
A standard grain combine harvester in its factory version causes great losses and damage of rape seeds during harvesting. These losses are resulting from a different reaction of rape plants from that of cereals to the operation of combine working elements. In the course of many years invetigations the sources and causes of these losses have been determined. A technology of harvesting, which allowed to decrease quantitative losses and seed damages was elaborated. An adequate combine adaptation and optimum selection of working parameters of its assemblies for the actual physical state of canopy, varieties, time of harvesting and agrometeorological factors have been made.
Standardowy kombajn zbożowy w wersji fabrycznej powoduje duże straty i uszkodzenia nasion rzepaku w czasie zbioru. Straty te wynikają z innej reakcji rzepaku niż zbóż na działanie elementów roboczych kombajnu. W czasie wieloletnich badań określono źródła i przyczyny powstawania tych strat. Opracowano technologię zbioru, która pozwoliła na ograniczenie strat ilościowych i uszkodzeń nasion, dzięki zastosowaniu odpowiednich adaptacji kombajnu oraz optymalnemu dostosowaniu parametrów pracy jego zespołów do aktualnego stanu fizycznego łanu, odmian, terminu zbioru i czynników agrometeorologicznych.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1995, 427; 41-44
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adsorption of Lead, Zinc, and Nickel Ions from Wastewater Using Coriander Seeds as an Adsorbent
Autorzy:
Shamkhi, Hibatallah Jamil
Hussein, Tamara Kawther
Powiązania:
https://bibliotekanauki.pl/articles/2025731.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
coriander seed
adsorption
heavy metals
isotherm model
wastewater
kinetic model
Opis:
This research focused on using coriander seeds as low cost adsorbent to remove heavy metals ions such as lead, zinc, and nickel from wastewater. Different parameters were studied to obtain the best results, such as pH, contact time, adsorbent dosage, concentration of initial metals and agitation speed. The highest results were obtained at pH 6, 105 min contact time, 1 g/100 ml dosage, 50 mg/l initial concentration of metal ions and 200 rpm agitation speed at temperature 25 ± 2 °C, which were 95.926%, 89.799% and 79.255% for lead, zinc and nickel ions, respectively. The results were also categorized as the Langmuir and Freundlich models, and found that the Freundlich isotherm fit the experimental data better than the Langmuir isotherm. The pseudo-second order was shown to have a high degree of fitness based on kinetic data. The adsorbent was characterized using a variety of techniques, including Fourier transform infrared spectroscopy (FTIR), Field Emission Scanning Electron Microscope (FESEM).
Źródło:
Journal of Ecological Engineering; 2022, 23, 1; 158-168
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adsorption of Zn(II) ions from aqueous environment by surface modified Strychnos potatorum seeds, a low cost adsorbent
Autorzy:
Senthil, Kumar P.
Powiązania:
https://bibliotekanauki.pl/articles/949520.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
adsorption
isotherms
kinetics
shrinking core model
Zn(II)
Opis:
The surface modified Strychnos potatorum seeds (SMSP), an agricultural waste has been developed into an effective adsorbent for the removal of Zn(II) ions from aqueous environment. The Freundlich model provided a better fit with the experimental data than the Langmuir model as revealed by a high coefficient of determination values and low error values. The kinetics data fitted well into the pseudo-second order model with the coefficient of determination values greater than 0.99. The influence of particle diffusion and film diffusion in the adsorption process was tested by fitting the experimental data with intraparticle diffusion, Boyd kinetic and Shrinking core models. Desorption experiments were conducted to explore the feasibility of regenerating the spent adsorbent and the adsorbed Zn(II) ions from spent SMSP was desorbed using 0.3 M HCl with the efficiency of 93.58%. The results of the present study indicates that the SMSP can be successfully employed for the removal of Zn(II) ions from aqueous environment.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 3; 35-41
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aerodynamic and geometric properties of amaranth seeds
Autorzy:
Kram, B.
Szot, B.
Powiązania:
https://bibliotekanauki.pl/articles/25403.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
aerodynamic property
amaranth
measurement
dynamic pressure
seed mass
geometrical property
seed
Źródło:
International Agrophysics; 1999, 13, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies