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Tytuł:
The impact of acidic organic matter on the diversity of underwater vegetation in soft water lakes
Autorzy:
Bociag, K
Powiązania:
https://bibliotekanauki.pl/articles/56617.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
lake
organic matter
soft water lake
acidic organic matter
humic substance
diversity
underwater vegetation
dissolved organic matter
Opis:
This paper addresses underwater vegetation in soft water lakes which are influenced by the anthropogenic input of allochtonic dissolved organic matter (DOM) from drained bogs. The aim of this work is to test the hypothesis regarding the role of DOM in shaping the diversity of underwater vegetation. Large differences in underwater vegetation habitats, the limitation of their occurrence to increasingly shallower littoral (the depth of the lower limit of their occurrence decreased from 12 m up to 1 m) and the regression of underwater vegetation were observed in lake types ranging from oligohumic (median (Me) of DOC in water = 2.5 mg C dm-3) to polyhumic (Me of DOC = 35.6 mg C dm-3). The gradual simplification of internal plant patch structure occurred and the Shannon-Weaver diversity index decreased (Me 0.04 → 0.00). Fewer species were observed in the lakes (Me 9 → 2), and the underwater vegetation covered increasingly smaller areas. Species replacement did not occur and no invasive species appeared.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The disintegration of populations of underwater plants in soft water lakes enriched with acidic organic matter
Autorzy:
Szmeja, J
Bociag, K.
Powiązania:
https://bibliotekanauki.pl/articles/57349.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
soft water lake
disturbance
acidic organic matter
Isoetes lacustris
population structure
Sphagnum denticulatum
underwater plant
Lobelia dortmanna
Fontinalis antipyretica
Opis:
The characteristics of habitats, individuals and populations of four submerged macrophytes, Lobelia dortmanna L., Isoetes lacustris L., Sphagnum denticulatum Brid. and Fontinalis antipyretica Hedw., were studied in 12 soft water oligohumic lakes which had no inflow of allochtonic DOM and the DOC concentration in the water was <4.0 mg C dm-3 and 13 humic lakes enriched with allochthonous dissolved organic matter (DOM) from drained peat bogs and ranging in DOC water concentration from 4.1 to 44.0 mg C dm-3. The analyses of population disintegration were conducted basing on characteristics of individuals (size, habitat, fertility) and populations (aggregation density index, settlement index of the population area). The settlement index of the population area for Lobelia, Fontinalis, Isoetes, Sphagnum decreased from 8.4 to 6.2 g d.w. m-2, 4.6 to 0.01 g d.w. m-2, 85.4 to <0.001 g d.w. m-2 and 39.3 to 7.2 g d.w. m-2, respectively. Similar trends were observed in aggregation density. The general pattern of the disintegration of populations of these species was always similar. It was independent of the source macrophytes drew resources from or their susceptibility to environmental changes. Individuals began to be eliminated from the deep and central parts of the population area. The remainder of the populations, which persist in the shallowest, best-illuminated part of the area, are themselves endangered by disturbances caused by wavy motion. The only populations of submerged macrophytes which can survive in polyhumic lakes under such conditions are those which are resistant to disturbances common in the shallow littoral (Lobelia dortmanna, Fontinalis antipyretica).
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany żyzności trofii w ekosystemach miękkowodnych jezior Borów Tucholskich
Changes of trophy in soft water lakes of Tuchola Pinewoods (N Poland).
Autorzy:
Milecka, K.
Bogaczewicz-Adamczak, B.
Powiązania:
https://bibliotekanauki.pl/articles/2074418.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
jezioro miękkowodne
badania paleoekologiczne
osad denny
badania pyłkowe
Bory Tucholskie
soft water lakes
pollen analysis
diatom analysis
trophy changes
Holocene
Tuchola Pinewoods
Opis:
Soft water lakes are mostly acid, poor in minerals and have a lot of free CO2 in their water and bottom sediments. So called Lobelia lakes, containing Lobelia dortmanna L., Isoëtes lacustris L., and Littorella uniflora (L.) Ascherson, are a type of soft water lakes. These species are rare in Poland and in Europe mainly because of eutrophication and anthropopression. Lobelia lakes and ecology of isoetids were described in many scientific articles, but their history is poorly recognised. Thus, for some years palaeoecological research has been done in the Tuchola Pinewoods to reveal the time of migration, spreading and development of Lobelia lakes. Pollen analysis and diatom analysis were done for the sediments of lakes: Nierybno, Okoń Duży, Linowskie, Moczadło and Nawionek (Fig. 1). Content of plant remains of Lobelia dortmanna nad Isoëtes lacustris, fossil diatoms and Pediastrum indicates phases of low and high trophy of Lake Nierybno (Fig. 5). The highest trophy was found in the Younger Dryas, in the middle Boreal Period and the oldest time of Subboreal Period. The lowest trophy was observed at the beginning of the Holocene, in the Atlantic Period and in modern times. Low trophy of the lake is related to acid or neutral pH of the water. Reconstruction of the lake history based on diatom analysis shows two main phases of the Nierybno ecosystem existence. In the early stages of the lake’s development it was an eutrophic basin with elevated pH. At the beginning of the Atlantic Period the pH decreased and content of nutrients in the water was reduced. Navicula radiosa, N. leptostriata and N. heimansioides, species typical for Lobelia lakes have been present since then. Generally Lobelia lakes are well preserved in the Tuchola Pinewoods due to low anthropopression and conservation activity of the Tuchola Pinewoods National Park and the Zaborski Landscape Park.
Źródło:
Przegląd Geologiczny; 2006, 54, 1; 81-86
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problemy uzdatniania wód powierzchniowych ujmowanych w rejonach podgórskich
Technological problems faced during treatment of soft surface waters in the piedmont area of South Poland
Autorzy:
Maćkiewicz, J.
Dziubek, A. M.
Powiązania:
https://bibliotekanauki.pl/articles/236352.pdf
Data publikacji:
2004
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
soft water
buffering
pH adjustment
water treatment
NOM removal
Opis:
Uzdatnianie wód o twardości poniżej 10 otw. (ok. 180 gCaCO3/m3) - tzw. wody miękkie - nastręcza wiele trudności technologicznych, wynikających z niskiej buforowości tych wód. Omówione w pracy miękkie wody powierzchniowe, występujące w rejonie Pogórza Sudeckiego, charakteryzują się niską mętnością, lecz podwyższoną barwą i wysoką zawartością substancji organicznych. Zwrócono szczególną uwagę na problemy technologiczne wynikające z chemizmu procesu koagulacji wód o niskiej zasadowości. Omówiono metody oczyszczania wód, szczególnie zawierających podwyższone ilości substancji organicznych, takie jak koagulacja w złożach filtracyjnych, filtracja powolna poprzedzona filtracją horyzontalną (HRF - Horizontal Roughing Filter), technologia MIEX-DOCŽ, wykorzystująca namagnetyzowane żywice anionowymienne. Podkreślono możliwość stosowania układów technologicznych eliminujących proces koagulacji, a także wskazano na inne problemy wynikające ze stosowania nowych rozwiązań w układach oczyszczania wody.
The treatment of low-hardness water (below appr. 180 gCaCO3/m3), i.e. soft water, raises many technological problems, resulting from a poor buffering. The surface waters reported on in this paper come from the Sudeten Piedmont Region and are characterized by a relatively low turbidity, as well as an increased coloured matter content and a high organic substances concentration. In this study, particular consideration was given to the technological problems that arise from the chemistry of soft water coagulation. Treatment methods were discussed (with emphasis on those for water with increased organic matter content), such as coagulation in filter beds, slow filtration with the HRF process as a prior step, or the MIEX-DOCŽ technology involving magnetized anion-exchange resins. Potential applications of technological trains with no coagulation process were analyzed, and the implications of using modified treatment technologies were considered.
Źródło:
Ochrona Środowiska; 2004, R. 26, nr 4, 4; 17-20
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the aquatic moss Sphagnum denticulatum Brid. population abundance in a softwater lake over a period of three years
Autorzy:
Szmeja, J
Powiązania:
https://bibliotekanauki.pl/articles/57078.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
aquatic moss
population dynamics
Sphagnum denticulatum
population abundance
soft water lake
lake
phenology
Opis:
Changes in population abundance of submerged Sphagnum denticulatum Brid. were studied in an acidic and oligotrophic lake in NW Poland over three years. Individuals were counted in a moss carpet at a depth of 2.5 m on 4 experimental plots, 1 × 1 m each, every 30 days for 36 months using the SCUBA method. PAR intensity was seasonally variable (in winter higher than in summer). Changes in water pH, conductivity, HCO3- concentration, hydration and sediment pH were statistically insignificant (p > 0.05). In the summer of the second study year the moss carpet disappeared almost completely due to a massive bloom of filamentous green algae. Periods of growth, regression and regeneration were observed in the population. The stabilisation of population size took 24 months and followed the pattern: slight fluctuations, then rapid growth and repetition of slight fluctuations. The first stage lasted nine, the second four and the third nine months. These stages took place irrespective of seasons, temperature or PAR intensity. Each rapid increase in abundance lasted about 30 days, at PAR intensity >20% and water temperature ranging from 11 to 16oC (in winter, spring or autumn). The regression stage brought about by the algal bloom started in the second year (in summer) and lasted six months (until the end of January in the third year). The population regeneration began in winter (in February, water temperature 3.0oC, PAR about 20%, ice cover 0.15 m) and finished with the end of spring. The population of S. denticulatum shows a repetitive pattern of abundance variations, which is seriously disturbed in summer, especially after a warm spring, by a massive bloom of filamentous green algae.
Źródło:
Acta Societatis Botanicorum Poloniae; 2010, 79, 2; 167-173
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie wstępnego utleniania i korekty pH do usuwania substancji organicznych z wód miękkich
Enhancement of organic matter removal from soft water by applying pre-oxidation and pH adjustment as prior step to the coagulation process
Autorzy:
Gumińska, J.
Powiązania:
https://bibliotekanauki.pl/articles/236356.pdf
Data publikacji:
2004
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
wody miękkie
substancje organiczne
koagulacja
wstępne utlenianie
obniżanie pH
soft water
organic compounds
coagulation
pre-oxidation
pH adjustment
Opis:
W celu zwiększenia skuteczności usuwania związków organicznych niektóre stacje oczyszczania wody wprowadzają wstępne utlenianie przed procesem koagulacji. Stosowanie takiego rozwiązania jest jednak ograniczone z uwagi na niebezpieczeństwo pojawienia się ubocznych produktów utlenienia. Aby wyeliminować niekorzystne skutki tego procesu ważny jest właściwy wybór utleniacza (i jego dawki), który zapewni uzyskanie wymaganej jakości wody. Ze względu na możliwość tworzenia się kancerogennych THM nie powinno się stosować chloru, można natomiast rozpatrywać zastosowanie ozonu lub dwutlenku chloru. Wprawdzie w reakcji dwutlenku chloru z substancjami humusowymi również powstają THM, ale stanowią one 1¸25% ilości, która powstaje w czasie chlorowania. Skuteczność usuwania związków organicznych z wody jest największa w środowisku kwasowym (pHť5) i maleje wraz ze wzrostem pH powyżej tej wartości lub wartości optymalnej dla danej wody. W pracy zaprezentowano wyniki badań przeprowadzonych w skali laboratoryjnej i pilotowej, które miały na celu ustalenie, czy proces wstępnego utleniania, bądź wstępnego obniżania pH wody może mieć korzystny wpływ na usuwanie związków organicznych z wód miękkich w procesie koagulacji. Stwierdzono, iż możliwe jest usunięcie prekursorów THM w procesie koagulacji powierzchniowej, której skuteczność można zintensyfikować poprzez wstępne obniżenie pH wody przed dawkowaniem koagulantu.
To enhance the removal of organic pollutants some treatment plants include pre-oxidation into the treatment train as a prior step to coagulation. There is a risk that the oxidation reaction may yield undesired by-products. It is therefore essential to choose the right oxidant and its dosage. If chlorine increases the concentration of disinfection by-products (THM), ozone or chlorine dioxide should be considered. Although the reaction of chlorine dioxide with humic substances also produces THMs, the amount of the THMs produced constitutes 1 to 25% of the amount generated during chlorination. Organic matter removal by coagulation is the highest at pHť5. The objective of our study was to establish whether or not the inclusion of pre-oxidation, or pH adjustment into the treatment train has a desirable effect on the removal of organic compounds from soft water by coagulation. It was found that direct coagulation enabled the removal of THM precursors and that the efficiency of the process can be enhanced by the pH adjustment before treating the water with the coagulant.
Źródło:
Ochrona Środowiska; 2004, R. 26, nr 4, 4; 9-12
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of sodium hyaluronate on dehydration and water distribution in soft contact lenses
Autorzy:
Rajchel, D.
Krysztofiak, K.
Szyczewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/174392.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
contact lens dehydration
sodium hyaluronate
gravimetry
differential scanning calorimetry (DSC)
Opis:
The purpose of this investigation was to examine the influence of sodium hyaluronate (HA) solution on contact lens dehydration and the distribution of water in lens materials. These parameters were measured with gravimetry and differential scanning calorimetry. Five commercial soft contact lenses were used. They represented four FDA (Federal Drug Administration) groups: Air Optix Night&Day Aqua and Acuvue Oasys (I FDA group), Proclear 1-Day (II FDA group), PureVision (III FDA group) and 1-Day Acuvue Moist (IV FDA group). All materials were investigated with two preservative-free HA solutions 0.1% and 0.3%. HA solutions influenced the water content and the dehydration rate of some examined lenses. For three lenses (Oasys, Proclear, Moist) water content of HA lenses was greater than control. Significant slowdown of dehydration rate under HA during the first 20min was observed only for Proclear. PhaseI of dehydration increased significantly with HA solutions in case of Moist and Proclear. For Night&Day and Oasys phaseI appeared under HA solution while it was not present for control lenses. Duration of the phaseI was strongly correlated with water content of the lenses (R2=0.844). The amount of freezable and non-freezable water depended strongly on characteristics of lens material and its interaction with HA molecules. Proclear seems to be the most prone to attach HA molecules which affect changes in dehydration characteristics and water behavior in the polymer. PureVision might be considered as the most resistant to HA in terms of dehydration dynamics and water distribution. All measured parameters seem to be dependent more on material properties than HA concentration.
Źródło:
Optica Applicata; 2016, 46, 3; 483-496
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contribution of Soft-shelled Monothalamous Taxa to Foraminiferal Assemblages in the Adriatic Sea
Autorzy:
Sabbatini, Anna
Nardelli, Maria Pia
Morigi, Caterina
Negri, Alessandra
Powiązania:
https://bibliotekanauki.pl/articles/763441.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Soft-shelled foraminifera, Allogromiids, shallow water setting, Adriatic Sea, bioindicator
Opis:
Monothalamous foraminifera with organic and agglutinated test walls (‘‘allogromiids’’ sensu lato) deserve attention because of their importance in deep-sea and shallow-water soft-bottom communities and their crucial phylogenetic position at the base of the foraminiferal evolutionary tree. However, our knowledge of the biodiversity and ecology of monothalamous foraminifera is very incomplete and geographically patchy. Here, we present a short review based on the available data on monothalamous, soft-walled foraminiferal taxa from the Adriatic Sea in response to several environmental parameters (i.e., organic matter, oxygen, grain size, depth). The main results of the studies provide evidence of the importance of these foraminiferal taxa in this shallow, temperate latitude area;they represent a start for the identification of soft-shelled monothalamous morphotypes that could be potential bioindicators of environments influenced by inputs of fresh waters, increasing eutrophication and consequent fluctuations in bottom-water oxygenation. The contribution of this soft-shelled component to living benthic foraminiferal assemblages appears not negligible and excluding it from foraminiferal studies can potentially lead to a loss of ecological information. The study, therefore, provide an atlas of the Adriatic soft-shelled foraminiferal taxa in order to 1) encourage the species-level description, if possible, or alternatively a basic morphotype characterization, 2) facilitate future comparisons of taxa from similar settings, 3) promote their potential use in future biomonitoring investigations together with the hard-shelled foraminifera.
Źródło:
Acta Protozoologica; 2013, 52, 3
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing of Soft Self-Supporting Water Tank Used for Fire Protection of Civil Structures
Testowanie miękkiego, samonośnego zbiornika na wodę, używanego dla ochrony przeciwpożarowej obiektów cywilnych
Autorzy:
Bednarek, Z.
Skłodowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/136360.pdf
Data publikacji:
2008
Wydawca:
Szkoła Główna Służby Pożarniczej
Tematy:
ochrona przeciwpożarowa
zbiorniki wodne przeciwpożarowe
ochrona obiektów cywilnych
Opis:
Investigated flexible self supporting water tank is made of fibre reinforced rubber and can be used in fire-extinguishing actions to protect buildings and other civil engineering structures. Its self supporting ability results from the air-tight floating flange. Preliminary investigations of the rubber material done in the laboratory and of a prototype tank led to the tank redesign. Deformations of a new tank were measured under its operating conditions with four tons of water inside. Resulting hoop and longitudinal strains exceed four percent and are in agreement with theoretical considerations. Developed measurement methods can be adapted for testing the shell structures and other coverings made of technical fabrics.
Testowany elastyczny, samonośny zbiornik na wodę wykonany jest z gumy wzmocnionej włóknami i może być użyty w akcjach gaśniczych w celu ochrony budynków i innych obiektów cywilnych. Jego samonośna zdolność wynika ze szczelnego samonośnego kołnierza. Wstępne badania materiałowe gumy przeprowadzone w laboratorium, jak i badania prototypu zbiornika doprowadziły do zmian w jego projekcie. Dokonano pomiarów odkształceń w nowym zbiorniku, zawierającym 4 tony wody, w warunkach prowadzenia akcji. Powstałe obwodowe, jak i wzdłużne odkształcenia przekraczają 4% i zgadzają się z teoretycznymi założeniami. Opracowane metody pomiarów mogą być wykorzystane do testowania konstrukcji łupinowych oraz innych pokryć wykonanych z włókien technicznych.
Źródło:
Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej; 2008, 36; 5-16
0239-5223
Pojawia się w:
Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of diffusion dynamics of 22Na ions and water in raw soft link-sausage type 'Servolat'
Określenie dynamiki dyfuzji jonów 22Na i wody w wędlinach surowych typu Serwolatka
Autorzy:
Fiszer, W.
Zabielski, J.
Pezacki, W.
Powiązania:
https://bibliotekanauki.pl/articles/10491.pdf
Data publikacji:
1975
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Opis:
Za pomocą dodatku do farszu soli zawierającej radioizotop ²²Na mierzono w kiełbasach, w różnych fazach produkcji i magazynowania zmiany radioaktywności i zawartości suchej substancji tłuszczowej. Wyniki wskazują, że w trakcie dojrzewania i wędzenia dyfuzja jonów ²²Na oraz wody odbywa się w kierunku wewnętrznych i zewnętrznych warstw kiełbas. W trakcie magazynowania jony sodowe kierują się głównie do wnętrza. Dyfuzja jonów ²²Na jest zależna od wielu czynników wśród których główną rolę odgrywa wilgotność (40%). Potwierdzono, że w trakcie badania nie wystąpiło grawitacyjne przemieszczanie jonów sodowych i wody. Obliczono współczynniki dyfuzji jonów ²²Na i wody. Wyniki wskazują, że szybkość przemieszczania wody w trakcie dojrzewania i wędzenia jest 40-krotnie wyższa niż sodu. Szybkość ta obniżała się pod koniec badania do poziomu 4-krotnie wyższego.
Źródło:
Acta Alimentaria Polonica; 1975, 01, 3-4
0137-1495
Pojawia się w:
Acta Alimentaria Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of dehydration and water states in new and worn soft contact lens materials
Autorzy:
Krysztofiak, K.
Szyczewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/173833.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
contact lenses
dehydration
hydrogel
silicone hydrogel
Opis:
The purpose of this study was to examine the in vitro dehydration characteristics of new and worn conventional and silicone-hydrogel contact lenses. Four contact lens materials were investigated: three conventional hydrogels (etafilcon, nelfilcon, omafilcon) and one silicone-hydrogel (narafilcon). Gravimetric data were obtained with analytical balance with 1 min intervals. Quantitative parameters of water content and dehydration rate were calculated allowing quantitative description of dehydration process. Differential scanning calorimetry was used to monitor changes in water states in samples studied. As expected, dehydration behavior of each material is different in terms of mean dehydration rate values and phases of dehydration. Gravimetric data allowed us to distinguish three phases of dehydration. Interestingly, the effect of the osmolality of storing solutions on dehydration was found – lenses stored in hyperosmotic solutions needed more time to achieve equilibrium with the environment. Effect of wearing on dehydration patterns and water properties was confirmed. In worn samples, a decrease in water content was observed. Additionally, there was a change in water structure after 6 h of wearing in all lenses studied. This behavior may be ascribed to tear film components deposition and changes in surface wettability that appear during wearing.
Źródło:
Optica Applicata; 2014, 44, 2; 237-250
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perception, acceptability and decision-making determinants of Soft Seltzer, a novel winegrape non-alcoholic carbonated beverage category to health-conscious College students in California
Autorzy:
Sikalidis, Angelos K.
Kristo, Aleksandra S.
Kelleher, Anita H.
Maykish, Adeline
Powiązania:
https://bibliotekanauki.pl/articles/2054872.pdf
Data publikacji:
2020-12-18
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
Consumption
Purchase decision making
Soft Seltzer
Sparkling Water
Wine Grape
Infused
Fruit-Flavored Functional Beverage
California Wine Grapes
Opis:
The beverage industry is a signifi cant market that is seeing a growth albeit certain types of beverages such as wine and soda-type drinks are seemingly declining. There is certainly seen a growing interest for novel beverages, especially when creating healthy options aiming to support health via enhanced functional food/beverage properties. Furthermore, understanding how the public perceives and makes purchasing decisions towards novel and unconventional options is of key importance. The Soft Seltzer category is an emerging category defi ned as a sparkling waterbased low calorie, no added sugar, no artifi cial sweetener, non-alcoholic, carbonated beverage. In our pilot study herein, we aimed to assess interest and willingness to pay for such a product produced in Sonoma, California, specifically H2O/H2♡, a dealcoholized wine-type beverage enriched with vitamins, potassium, and calcium, using a perception and acceptability study to health-conscious college students in California. Respectivelly, healthy college students were provided an on-line acceptability questionnaire with 38 questions to evaluate the concept of the H2O beverage. Our participants indicated that they would be signifi cantly interested in purchasing such a beverage, while as for willingness to pay, a price for $9.99/4x16oz cans was deemed less than or about what is expected from a majority of participants. Our results taken together demonstrate that there is substantial interest and traction for such a beverage, especially given its natural origin and potential health benefi ts. Further research including tasting and health-related functional properties for the beverage in discussion is suggested. Additionally, lifestyle aspects and nuances beyond alcohol that are important to wine drinkers and other consumers could be delivered by novel beverages, hence aid in their success in the beverage market.
Źródło:
Journal of Marketing and Consumer Behaviour in Emerging Markets; 2020, 2(11); 33-54
2449-6634
Pojawia się w:
Journal of Marketing and Consumer Behaviour in Emerging Markets
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of lipopolysaccharide on the development of oxidative-nitrosative stress in salivary glands and soft periodontal tissues of rats under conditions of water avoidance stress
Autorzy:
Pletnov, Vadym
Tkachenko, Olexiy
Akimov, Oleh
Mykytenko, Andrii
Powiązania:
https://bibliotekanauki.pl/articles/40570868.pdf
Data publikacji:
2024-06-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
bacterial lipopolysaccharide
nitric oxide
salivary glands
soft periodontal tissues
water avoidance stress
Opis:
Introduction and aim. Violation in the salivary glands will inevitably cause changes in periodontium, and periodontitis can disrupt the functioning of the salivary glands. The purpose of the work is to evaluate changes in NO-synthase and arginase activities, pro- and antioxidant balance in rat salivary glands and soft periodontal tissues during administration of bacterial lipopolysaccharide (LPS) and water avoidance stress (WAS) modeling. Material and methods. The experiment was performed on 24 rats. The animals were divided into 4 groups: control, WAS, animals injected intraperitoneally with 0.4 μg/kg of bacterial LPS of Salmonella typhi, WAS+LPS. Results. Water avoidance stress led to decrease of inducible NO-synthase (iNOS) activity in salivary glands by 1.63 times, but decreased arginase activity by 1.15 times, superoxide production increased by 1.53 times, catalase activity decreased by 1.2 times, and malonic dialdehyde (MDA) increased by 1.19 times compared to the control. Lipopolysaccharide led to increase of constitutive NO-synthases (cNOS) activity in salivary glands by 1.48 times, but decreased arginase activity by 6.15 times, catalase activity increased by 2.6 times and superoxide dismutase activity decreased by 2.74 times, and MDA increased by 6.84 times compared to the control. Water avoidance stress + LPS in salivary glands led to decrease of cNOS and arginase activity by 1.09 and 1.19 times, respectively, superoxide production increased by 1.88 times, catalase and superoxide dismutase activity decreased by 1.06 times and 1.34 times, respectively, and MDA increased by 2.44 times compared to the control. Water avoidance stress led to increase of iNOS activity in periodontium by 1.44 times and arginase activity decreased by 1.37 times, superoxide production increased 1.32 times, catalase activity and superoxide dismutase activities decreased by 1.27 times and by 1.53 times, respectively, and MDA increased by 1.31 times compared to the control. Lipopolysaccharide led to increase of iNOS activity in the periodontium by 3.88 times, arginase activity decreased by 2.69 times, superoxide production increased 1.64 times, catalase activity increased by 4.32 times, and MDA increased by 4.51 times compared to the control. Water avoidance stress + LPS in periodontium led to increase of iNOS and cNOS activities by 1.95 times and 1.53, respectively, arginase activity decreased by 1.39 times, superoxide production increased 1.66 times, catalase activity increased by 1.11 times, and MDA increased by 1.53 times compared to the control. Conclusion. The combination of LPS and WAS leads to changes in NO production and oxidative stress in salivary glands and the periodontium.
Źródło:
European Journal of Clinical and Experimental Medicine; 2024, 22, 2; 404-416
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model of multipath propagation of ultrasonic pulses generated in soft tissue by linear arrays
Autorzy:
Celmer, M.
Opieliński, K. J.
Powiązania:
https://bibliotekanauki.pl/articles/332417.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
model of multipath propagation of ultrasonic pulses
linear arrays of ultrasonic transducers
crosstalk
acoustical field
water
tissue
Opis:
Arrays of ultrasonic transducers used in medical diagnosis for safe and non-invasive visualization of the inside of a human body usually consist of many elementary piezoceramic transducers. In such an electromechanical construction of the array, while activating individual transducers, creation of crosstalk can be observed in the form of propagation of electric voltage and mechanical vibration on neighboring elements, which leads to distortion of the generated acoustical field, and in consequence reduces the quality of reconstructed medical images. Complexity of the problem rises rapidly in the case of arrays forming ultrasonic beams. In this paper, authors developed a numerical amplitude-phase model of multipath propagation of ultrasonic pulses generated in a soft tissue-like medium by such arrays. The model allowed simulation of acoustic field distributions, and to examine the influence of beam focusing in transmission mode on these distributions, taking into account electrical and mechanical crosstalk.
Źródło:
Hydroacoustics; 2016, 19; 37-48
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
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