An improved L-lysine amperometric biosensor based on lysine oxidase immobilised onto a platinum electrode by glutaraldehyde co-crosslinking with bovine serum albumin is described. A thoroughly optimization of the enzyme immobilization procedure permitted the fabrication of a fast-response biosensor with high sensitivity and improved stability. Moreover, the relevant electrochemical study showed the possibility to tune the overall kinetic control of biosensor from merely diffusive to enzymatic or mixed by switching the pH from weakly alkaline to weakly acid values, respectively, as well as by controlling its hydrodynamic behaviour. The response time, t(0.95), evaluated in batch addition experiments, was lower than 6 s. Linear lysine responses up to 0.6 M were observed with a sensitivity of 4.4 mu A mM(-1), while detection limit at S/N = 3 was 1 mu M. The sensor has been tested for lysine determination of a pharmaceutical sample obtaining a good agreement with the expected values.. ...

Bacterial adhesins are modular cell-surface proteins that mediate adherence to other cells, surfaces, and ligands. The Antarctic bacterium Marinomonas primoryensis uses a 1.5-MDa adhesin comprising over 130 domains to position it on ice at the top of the water column for better access to oxygen and nutrients. We have reconstructed this 0.6-μm-long adhesin using a dissect and build structural biology approach and have established complementary roles for its five distinct regions. Domains in region I (RI) tether the adhesin to the type I secretion machinery in the periplasm of the bacterium and pass it through the outer membrane. RII comprises ~120 identical immunoglobulin-like β-sandwich domains that rigidify on binding Ca2+ to project the adhesion regions RIII and RIV into the medium. RIII contains ligand-binding domains that join diatoms and bacteria together in a mixed-species community on the underside of sea ice where incident light is maximal. RIV is the ice-binding domain, and the ...

Protéines de liaison de glace (IBP), également appelées protéines antigel, inhiber la croissance de la glace et sont un additif...

Protéines de liaison de glace (IBP), également appelées protéines antigel, inhiber la croissance de la glace et sont un additif...

Novel glycine oxidase (GlyOX) from Marinomonas mediterranea depends on cysteine tryptophilquinone (CTQ) and catalyzes the oxidative deamination of glycine to produce a glyoxylate, ammonia, and hydrogen peroxide. M. mediterranea GlyOX genes (goxA and goxB) were cloned and recombinant GlyOX was heterologously expressed by E. coli. The purification of recombinant GlyOX was carried out by metal affinity and DEAE-Toyopearl 650M column chromatographies. M. mediterranea GlyOX was homotetramic with a molecular mass of 76kDa and showed optimum activity around 30°C and at pH 5.0, and stability below 50°C and between pH 5.0 to 9.0. M. mediterranea GlyOX shows a strict substrate specificity toward glycine, and the Michaelis constant for glycine was 0.5mM. M. mediterranea GlyOX could determine the quantity of glycine in human serum and human blood plasma with high sensitivity. This study revealed the catalytic and structural properties of M. mediterranea GlyOX with high substrate specificity. ...

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The maximum size and age that clonal organisms can reach remains poorly known, although we do know that the largest natural clones can extend over hundreds or thousands of metres and potentially live for centuries. We made a review of findings to date, which reveal that the maximum clone age and size estimates reported in the literature are typically limited by the scale of sampling, and may grossly underestimate the maximum age and size of clonal organisms. A case study presented here shows the occurrence of clones of slow-growing marine angiosperm Posidonia oceanica at spatial scales ranging from metres to hundreds of kilometres, using microsatellites on 1544 sampling units from a total of 40 locations across the Mediterranean Sea. This analysis revealed the presence, with a prevalence of 3.5 to 8.9%, of very large clones spreading over one to several (up to 15) kilometres at the different locations. Using estimates from field studies and models of the clonal growth of P. oceanica, we estimated these

The pentose phosphate pathway is a process of glucose turnover that produces NADPH as reducing equivalents and pentoses as essential parts of nucleotides. There are two different phases in the pathway. One is irreversible oxidative phase in which glucose-6P is converted to ribulose-5P by oxidative decarboxylation, and NADPH is generated [MD:M00006]. The other is reversible non-oxidative phase in which phosphorylated sugars are interconverted to generate xylulose-5P, ribulose-5P, and ribose-5P [MD:M00007]. Phosphoribosyl pyrophosphate (PRPP) formed from ribose-5P [MD:M00005] is an activated compound used in the biosynthesis of histidine and purine/pyrimidine nucleotides. This pathway map also shows the Entner-Doudoroff pathway where 6-P-gluconate is dehydrated and then cleaved into pyruvate and glyceraldehyde-3P [MD:M00008 ...

MAU BISNIS SIP ( Smart In Pays ) ??? ~Agen Pulsa ~Agen Tiket Pesawat ~Agen PPOB ( Listrik, Air, speedy, dll ) ~Voucher Hotel ~Tiket Kereta Api, Bus, Paket Tour, Umroh, dll Perkenalkan, terobosan baru dalam dunia networking berbasis Aplikasi, SMART IN PAYS Smart in Pays merupakan perusahaan yang bergerak dalam bidang aplikasi penyedia layanan multi-payment untuk memenuhi kebutuhan sehari-hari anda

Shelter has become one of the three basic needs of the human being. Shelter from natural elements such as rain, sun wind and heat had evolved the concept of the roof. The roof is not a contemporary product, but it is a ...

With this aim, the density of Paracentrotus lividus was estimated at six different locations around the Gulf of Alghero (Northwestern Sardinia, Italy). At each location, two areas were considered and within each area the number of P. lividus individuals was counted in 10 plots of dimensions 1 × 1 m each. The abundance of P. lividus and Sarpa salpa grazing marks was estimated on two shoots harvested at random in each plot. The number of P. lividus individuals varied greatly among the locations and between areas within each location. A sigmoid function was found to better describe the relation between P. lividus density and the number of its grazing marks. The distance class-frequency distribution of P. lividus grazing marks from the leaf base showed that this herbivore affected the length of the Posidonia oceanica leaf for about 700 mm, and that the attacks were concentrated at the lower portion of the leaf near the base. Conversely, a larger number of the S. salpa grazing bites were more ...

eng] The usefulness of vertical rhizome growth as an early indicator of fish farm impacts to Posidonia oceanica meadows was tested by comparing annual estimates of vertical rhizome growth, quantified retrospectively, at distances ranging between 5 and 1200 m from fish cages at four Mediterranean locations (Cyprus, Greece, Italy and Spain). The studied fish farms had been operating since, at least, 1997, producing between 150 and 1150 tons yr−1 of sea bream (Sparus aurata) and sea bass (Dicentrachus labrax), and, at Italy, also sharpsnout sea bream (Diplodus puntazzo). The reconstructed vertical rhizome growth spanned from 19 to 25 years of growth, depending on sites, and the average vertical rhizome growth before the onset of fish farm operations ranged between 4.48 and 8.79 mm yr−1. The vertical rhizome growth after the onset of farming activities declined significantly (t-test, P , 0.05) from the control station (at ,800 m from the farm; vertical growth rate averaged 6.79, 5.52, 3.89 and ...

Looking for online definition of osmometers in the Medical Dictionary? osmometers explanation free. What is osmometers? Meaning of osmometers medical term. What does osmometers mean?

Poster (2012, August 20). In the Mediterranean Sea, Posidonia oceanica meadows produce a huge amount of detritus, evaluated up to 300 to 2000 g dry wt m-2 yr-1. This litter is mainly composed of dead leaves but also of uprooted P ... [more ▼]. In the Mediterranean Sea, Posidonia oceanica meadows produce a huge amount of detritus, evaluated up to 300 to 2000 g dry wt m-2 yr-1. This litter is mainly composed of dead leaves but also of uprooted P.oceanica shoots and drift macro-algae from adjacent rocky bottoms. Although rich in refractory materials (lignin) and poor in P and N, these underwater accumulations of leaves are colonised by fungi, micro-algae (like diatoms), bacteria, but also by micro and macrofauna assemblages. These organisms could play an important role in leaf litter degradation and enrichment, but also in energy and carbon transfer from P.oceanica to higher trophic levels in adjacent coastal ecosystems. In this study we focus on the vagile macro-fauna (invertebrates with a size ...

The Protected Area is characterised by a variety of habitats, of European interest including sand dunes, Posidonia oceanica beds, the critically endangered Sea daffodil, submerged reefs, as well as hundreds of species of flora and fauna, some of which are of great importance. ...

Selamat Siang semua, saya ingin membuat direct print struk untuk aplikasi ppob menggunakan framework CI, pas user klik cetak struk, struk langsung dicetak melalui printer dot metrik, seperti kalo kita belanja di minimarket.

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When you have the scientific name of a plant, you should easily find information on it with internet search engines, such as google.com. Posidonia oceanica or neptunegrass is a type of seagrass. It is an important native flowering plant forming vast underwater meadows in the Mediterranean Sea. It provides habitat, oxygen, and food for many other organisms. It can grow at a water depth of up to 40 meters. It is endangered by pollution, construction, drag netting, and an introduced algae, Caulerpa taxifolia. Neptunegrass has rhizomes, roots, ribbonlike leaves up to 1.5 meters long, and ball-like fruit. Its fruit and leaves often wash up on beaches. The fruit have air spaces allowing them to float. References Natural habitat (Posidonia oceanica L. Del.) Neptunegrass (Posidonia oceanica) Posidonia oceanica Simulation Posidonia oceanica photo Posidonia oceanica fruit balls ...

Temporal variability in species composition and abundance may enhance coexistence in ecological communities, especially when subjected to strong seasonal patterns. Species distribution through time may be related to many factors, such as changes in the structure and functioning of preferred habitats, variations in ecological interactions or asynchronous patterns in species life cycles. Here, data from a one-year survey of amphipod assemblages from a nearly undisturbed Posidonia oceanica meadow are used to investigate the seasonal patterns in species abundance and identity. Our results highlight the presence of a core group of species inhabiting the meadow throughout the year, although an in depth analysis reveals three differentiated seasonal assemblages corresponding to autumn, winter, and a warm season clustering of both spring and summer. The observed patterns suggest the interplay between different mechanisms drives the coexistence of amphipods over the whole year, including niche partitioning,

In this study, we investigated Cd, Cr, Cu, Pb, and Zn in the seagrass Posidonia oceanica (L.) Delile leaves and in the brown algae Cystoseira sp. sampled along a 280-km transect in the Tyrrhenian Sea, from the Ustica to Linosa Islands (Sicily, Italy) with the aim to determine their control charts (baseline levels). By applying the Johnsons (Biometrika 36:149-175, 1949) probabilistic method, we de ...

Els cefalaspídeus generalment són habitants de substrats tous, on viuen enterrats a diversos centímetres de profunditat a la recerca daliment. Algunes espècies habiten en fons de fang o pedres que són caladors darrossegament de vaixells de pesca i per això solen aparèixer entre les restes dels descarts no comercials de la pesca, com passa amb Scaphander lignarius, que pot arribar a 80 mm de longitud i que salimenta de foraminífers, poliquets, gasteròpodes i petits bivalves. En fons similars viuen Philine quadripartita i Ph. Catena, que salimenten de poliquets, foraminífers i bivalves. Les espècies de Retusa i Cylichna viuen en fons de sorra i fang o praderies de Posidonia oceanica alimentant-se de foraminífers i petits gasteròpodes. Les espècies del gènere Haminoea i Bulla són herbívores i viuen en fons fangosos de linterior de ports o fons de petites badies amb fanerògames marines, alimentant-se dalgues verdes, brunes i vermelles i fanerògames com Cymodocea nodosa, a ...

Pretre, J. G. (Jean Gabriel), b. 1769 (artist) and Risso, A. (Antoine), 1777-1845 (author), Chrysoma mediterranea and various depictions of Scyllarus arctus larva from Rissos Histoire naturelle des principales productions de lEurope méridionale, AMNH Research Library , Digital Special Collections, accessed October 26, 2020, https://lbry-web-007.amnh.org/digital/items/show/18683 ...

Ampia evoluzione nelle annate 2012 e 2011, scoprendo note di marmellata, frutta cotta, mora, frutti di bosco. Al naso i tratti marcanti di macchia mediterranea, di rosmarino ed erbe balsamiche, fanno, in modo armonico, da spalla al gusto tannico, graffiante ma raffinato. Il vino prodotto nellannata 2010 è un vero fuoriclasse: colore rosso rubino intenso, naso inizialmente timido, ma effettuando una breve roteazione del liquido nel bicchiere, siamo invasi da note di grafite, pepe, delicati frutti rossi. Ritroviamo i profumi della macchia mediterranea e del sottobosco. In bocca è liquirizia, tannino presente con eleganza, note tostate nel finale. Brunello di eccezionale qualità, assolutamente da riassaggiare tra qualche anno. Lannata 2009, pur essendo meno giovane della precedente, presenta al naso note di frutta matura e spezie, mai in bocca, il vino è fresco, il frutto è ancora giovane, croccante e tannico. Ottime prospettive di longevità ...

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PNEI REVIEW - Approccio integrato alla cura dello scompenso cardiaco ed aritmie ( Lapproccio integrato nella cura dello scompenso cardiaco e delle aritmie prevede il riconoscimento dei fattori ostacolanti il processo di guarigione del paziente e la definizione di un percorso di cura che incontri le esigenze del paziente stesso. Accanto alla terapia convenzionale, occorre controllare i fattori che potrebbero far precipitare il delicato equilibrio cardiovascolare (corretta gestione dellipertensione e dei tradizionali fattori di rischio cardiologici; attenzione alluso di farmaci antinfiammatori non steroidei e calcio antagonisti) e fornire al malato delle adeguate indicazioni sul suo stile di vita: cessazione del fumo e delluso di alcool; corretta alimentazione (dieta mediterranea) ed attività fisica aerobica per raggiungere un adeguato peso; restrizione salina ed idrica se necessari; utilizzare tecniche mente-corpo per una adeguata gestione dello stress e della depressione.)

PNEI REVIEW - Approccio integrato alla cura dello scompenso cardiaco ed aritmie ( Lapproccio integrato nella cura dello scompenso cardiaco e delle aritmie prevede il riconoscimento dei fattori ostacolanti il processo di guarigione del paziente e la definizione di un percorso di cura che incontri le esigenze del paziente stesso. Accanto alla terapia convenzionale, occorre controllare i fattori che potrebbero far precipitare il delicato equilibrio cardiovascolare (corretta gestione dellipertensione e dei tradizionali fattori di rischio cardiologici; attenzione alluso di farmaci antinfiammatori non steroidei e calcio antagonisti) e fornire al malato delle adeguate indicazioni sul suo stile di vita: cessazione del fumo e delluso di alcool; corretta alimentazione (dieta mediterranea) ed attività fisica aerobica per raggiungere un adeguato peso; restrizione salina ed idrica se necessari; utilizzare tecniche mente-corpo per una adeguata gestione dello stress e della depressione.)

Poster (2009, November 27). Posidonia oceanica is a seagrass endemic to the Mediterranean Sea, and is able to form large monospecific areas, called meadows. These meadows are critical features of the Mediterranean coastal zones, and ... [more ▼]. Posidonia oceanica is a seagrass endemic to the Mediterranean Sea, and is able to form large monospecific areas, called meadows. These meadows are critical features of the Mediterranean coastal zones, and are of great ecologic and economic importance. Posidonia oceanica meadows shelter high biomasses and biodiversities of amphipod crustaceans. In other temperate meadows, such as Atlantic Zostera marina meadows, the amphipods play an important part in the functioning of the ecosystem, notably in organic matter transfers from producers to higher level consumers. However, the situation in Posidonia oceanica meadows remains unclear, due to the lack of precise studies, and little is known about the trophic ecology of amphipods. In this context, our ...

LODA - The village board has directed its attorney to draw up an ordinance to prohibit garbage trucks from using the alley.. That means residents who are used to placing their garbage in the alley for pick-up will instead need to haul it to the front of their homes. The ordinance will spell out how much time they will have to get their containers out of their front yards.. The original proposal was to ban the trucks from the alleys just during the thawing/rainy season, February through May. But trustees acknowledged that the alleys are deteriorating so much that the trucks needed to stay out of them year-round.. Resident Paula McCadden asked the board to consider the ramifications of their action. She said because two different salvage companies serve the village, there will be two full days when trash containers are out near the streets. And she said there will be a cost involved for residents to purchase new containers since many people simply put their garbage in leaf-burning barrels that sit ...

Posidonia oceanica (Neptune grass) grows at depths varying from 5 to 40-50meters, depending on water clarity. It is endemic to the Mediterranean Sea and forms extensive underwater meadows which can be considered as the Mediterranean underwater equivalent of the tropical forests in land. It sustains a large variety of commercially important species. Both the meadows & the dead leaves of P. oceanica that one can find in the shore are protecting the coastline against erosion. It is particularly sensitive to organic pollution and to bottom trawling. Τhe protection and conservation of P. oceanica habitat is a top priority (EU Habitat Directive 92/43) and everyones responsibility. ...

Posidonia oceanica, an endemic seagrass of the Mediterranean Sea harbors a high diversity of N2-fixing prokaryotes. One of these is Halothece sp., a unicellular N2-fixing cyanobacteria detected through nifH analysis from the epiphytes of P. oceanica. The most related strain in culture is Halothece sp. PCC 7418 and this was used as the test organism in this study. In the Mediterranean Sea, phosphorus (P) and iron (Fe) can be the major limiting nutrients for N2 fixation. However, information about the mechanisms of P-acquisition and the role of metals (i.e., Fe) in these processes for N2-fixing bacteria is scarce. From our genomic analyses of the test organism and other phylogenetically related N2-fixing strains, Halothece sp. PCC 7418 is one of the strains with the greatest number of gene copies (eight copies) of alkaline phosphatases (APases). Our structural analysis of PhoD (alkaline phosphatase type D) and PhoU (phosphate acquisition regulator) of Halothece sp. PCC 7418 showed the connection among

Goniadella bobrezkii (Annenkova, 1929) is a small goniadid worm identifiable by the number of anterior uniramous parapodia and by the position of the posterior spine-like notochetae arising dorsal to dorsal cirri. Although it was already reported in the Mediterranean Sea, it has never been found in the Italian waters. This study represents the first generic and specific record of G. bobrezkii along Italian coasts. A total of 25 specimens were collected in a Posidonia oceanica (L.) Delile bed, depth of 7 m, off Civitavecchia (Rome).

BACKGROUND: Sucrase-isomaltase (SI) is a tissue-based phenotypic marker that is an independent prognostic factor in colorectal cancer (CRC). DF3 and galectin 3 are two other tissue-based markers that are upregulated during neoplastic transformation. Because p53 mutations are acquired during neoplastic progression, we reasoned that alterations in SI and p53 may be associated despite an apparent lack of biological interaction. METHODS: Paraffin sections from 183 patients who underwent surgery at New England Deaconess Hospital (NEDH) between 1965 and 1977 were analyzed first by immunohistochemistry (IHC) for the expression of the markers SI, DF3, and galectin 3, which were scored as absent or present. Paraffin sections from a second group of 59 patients who underwent surgery at NEDH between 1985 and 1992 were analyzed by IHC for the expression of p53 as well as SI, DF3, and galectin 3. p53 nuclear staining was scored as absent or present. Previous work has shown that p53 is mutated in all cells with

The Wescor Vapro® Model 5600 Vapor Pressure Osmometer, can be used to determine the osmolality in any type of sample: fluids, viscous, and even tissue. As a result, the instrument has great versatility in clinical medicine or biomedical research. The Vapro 5600 requires a sample volume of only 10 microliters and osmolality is displayed in 90 seconds.. This late model instrument is in great condition and comes with sample discs, thermocouple cleaning solutions, starter set of osmolality standards and instruction manual. It is priced at about half the cost of a new unit and comes with a 60-day warranty.. ...

Highly magnified image (100,000 times magnification) showing a metal injected carbonate fossil in Posidonia Shale. The bright part is the metal which indicates the connected porosity. Width of the picture is 3 µm, see Klaver et al., (2016, http://dx.doi.org/10.1016/j.coal.2016.03.003) for further information. ...

Lab Tests Prototyping -Biogas produced from Posidonia -Acid Thermal Hydrolysis -Biogas produced increases from 40ml/GSSV to 170ml/GSSV […]

Seagrass are among the most important natural carbon sinks on Earth with Posidonia oceanica (Mediterranean Sea) considered as the most relevant species. Yet, the number of direct measurements of organic carbon burial rates in P. oceanica is still scarce and the effect of local environmental factors remains largely unexplored. In addition, P. oceanica meadows are declining due to the increase in anthropogenic pressure in coastal areas during the last century. The aim of this study is to assess the recent carbon sink capacity of P. oceanica and particularly the effect of human pressure and two environmental factors, water depth and exposure to wave energy (based on a fetch index), on the carbon burial rate since 1900. We conducted an extensive survey of sediment cores in meadows distributed across a gradient of depth, fetch, and human pressure around The Balearic Islands. Sediment and carbon accumulation rates were obtained from 210Pb concentrations profiles. Top-30 centimeters carbon stocks (6.1 ...

These Neptune balls are often expelled from the prairies during periods of strong waves or storms and wash up on the beaches. Although there are no studies that quantify the amount of aegagropilae expelled from the marine environment, it is estimated that about 1,470 pieces of microplastics are taken per kg of plant fibre, which is significantly higher than those captured through leaves or sand.. According to the analyses, the trapped microplastics in the prairies of the Posidonia oceanica are mainly filaments, fibers and fragments of polymers which are denser than the sea water such as polyethylene terephthalate or PET, Anna Sànchez-Vidal, member of the Department of Ocean and Earth Dynamics at the University of Barcelona, says in a news release. Sànchez-Vidal is also one of the authors of the study. We cannot completely know the magnitude of this plastic export to the land. However, first estimations reveal that Posidonia balls could catch up to 867 million plastics per year, she ...

Watch this video to learn about the Mosquito HTS from TTP Labtech. Dr Adam Shutes, Senior Scientist, Blueprint Medicines, discusses why mosquitos nanoliter liquid handling is central to the needs of their biotech business.

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience ...

The enzyme is involved in degradation of sulfoacetate. In this pathway the reaction is catalysed in the reverse direction. The enzyme is specific for sulfoacetaldehyde and NADP+ ...

Amanifar, N., Taghavi, M., Izadpanah, K., Babaei, G., (2014). Phytopathologia Mediterranea 53(2), 318-327. Mediterranean Phytopathological Union, Firenze, Italy. English language. ...

Dispenser starter kit for research experiments, R&D labs or the evaluation of your liquid media. Miniaturize your experiment by the dynamic single droplet volume of 2 - 70 nanoliter.

On the basis of phenotypical characteristics and analysis of 16S rRNA sequence, a new species belonging to a new genus is described, and the name Marinobacter hydrocarbonoclasticus is proposed. This organism, isolated from Mediterranean seawater near a petroleum refinery, is a gram-negative, aerobic, rod-shaped bacterium. It grows at NaCl concentrations of 0.08 to 3.5 M and uses various hydrocarbons as the sole source of carbon and energy. Its DNA has a guanine-plus-cytosine content of 52.7 mol%. The 16S rRNA analysis shows a clear affiliation between M. hydrocarbonoclasticus and the gamma group of the phylum Proteobacteria. A close phylogenetic relationship appears among the species Marinomonas vaga, Oceanospirillum linum, Halomonas elongata, and Pseudomonas aeruginosa. Because of the impossibility of finding a single most closely related species, we suggest that this bacterium be assigned to a new genus, at least temporarily. The possibility of a revision of this status when new data appear is,

The integrated nanoliter system is a measuring, separating, and mixing device that is able to measure fluids to the nanoliter, mix different fluids for a specific product, and separate a solution into simpler solutions. All features of the integrated nanoliter system are specifically designed for controlling very small volume of liquid (referred as microfluidic solutions). The integrated nanoliter systems scalability depends on what type of processing method the system is based on (refer as technology platform) with each processing method having its advantages and disadvantages. Possible uses for the integrated nanoliter system are in controlling biological fluids (refer as synthetic biology) and accurately detecting changes in cells for genetic purposes (such as single-cell gene expression analysis) where the smaller scale directly influences the result and accuracy. The integrated nanoliter system consists of microfabricated fluidic channels, heaters, temperature sensors, and fluorescence ...

TY - JOUR. T1 - Graphene gas osmometers. AU - Dolleman, Robin. AU - Cartamil Bueno, Santiago. AU - van der Zant, Herre. AU - Steeneken, Peter. N1 - Accepted Author Manuscript. PY - 2016. Y1 - 2016. N2 - We show that graphene membranes that separate two gases at identical pressure are deflected by osmotic pressure. The osmotic pressure is a consequence of differences in gas permeation rates into a few-layer graphene enclosed cavity. The deflection of the membrane is detected by measuring the tension-induced resonance frequency with an interferometric technique. Using a calibration measurement of the relation between resonance frequency and pressure, the time dependent osmotic pressure on the graphene is extracted. The time dependent osmotic pressure for different combinations of gases shows large differences that can be accounted for by a model based on the different gas permeation rates. In this way, a graphene-membrane based gas osmometer with a responsivity of ~60 kHz mbar-1 and nanoscale ...

2 Dokuz Eylül University, Faculty of Sciences, Department of Chemistry, Division of Biochemistry, Kaynaklar Campus, İzmir, Turkey DOI : 10.4194/1303-2712-v17_6_50 Viewed : 262 - Downloaded : 217 Importance of the artificial intelligence in the chemical processes has been increased in the recent studies. Although biosorption is widely studied topic in chemistry, modelling of biosorption data is based on very old equations. However, use of artificial intelligence in the biosorption based studies can give important clues to researchers. For this purpose, the biosorption of tetracycline by using Posidonia oceanica from the Mediterranean Sea was studied in this study. According to classical evaluation, the data were well in line with pseudo-second order kinetic and Langmuirs isotherm. In the artificial neural network modelling, the best back propagation algorithm, optimum number of hidden neuron and optimum training:validation:testing ratio were found as Bayesian Regulation, 16 and 70:10:20, ...

The class Bolidophyceae includes a single genus Bolidomonas and two species (Bolidomonas pacifica and B. mediterranea) described from marine waters.. The Bolidophyceae was established by Guillou et al. (1999), as a new class of picoplankton isolated from both the equatorial Pacific and the Mediterranean Sea. One genus, Bolidomonas, and two species, Bolidomonas pacifica and B. mediterranea, have been described. Guillou et al. also proposed a subspecies of B. pacifica: B. pacifica var. eleuthra. Bolidomonas pacifica swims differently than B. mediterranea, and their flagella are oriented differently with respect to one another (Fig. 1). B. pacifica swims in a consistently straight pattern, and the flagella are oriented at a 90° angle with respect to one another. In contrast, B. mediterranea demonstrates frequent changes in swimming direction, and flagella are oriented at a 180° angle with respect to one another ...

The phylum Echinodermata is well known for its extensive regenerative capabilities. Although there are substantial data now available that describe the histological and cellular bases of this phenomenon, little is known about the regulatory molecules involved. Here, we use an immunochemical approach to explore the potential role played by putative members of the transforming growth factor-β (TGF-β) family of secreted proteins in the arm regeneration process of the crinoid Antedon mediterranea. We show that a TGF-β-like molecule is present in normal and regenerating arms both in a propeptide form and in a mature form. During regeneration, the expression of the mature form is increased and appears to be accompanied by the appearance of an additional isoform. Immunocytochemistry indicates that TGF-β-like molecules are normally present in the nervous tissue and are specifically localized in both neural elements and non-neural migratory cells, mainly at the level of the brachial nerve. This ...

FOR IMMEDIATE RELEASE CONTACT: Tricia Braid (309) 557-3257 BLOOMINGTON, Ill.--Jeff Jarboe, a farmer from Loda, Ill., and Illinois Corn Growers Association President, released the following statement after learning of the U.S. Environmental Protection Agencys (EPA) final decision regarding the Renewable Fuel Standard (RFS) Renewable Volume Obligation (RVO) for 2014, 2015, and 2016.

Article of periodic. published at : Ecologia mediterranea. Editor : Millesime : 1988, vol. 14, no1-2 [pp. 155-183]. Bibliographic references : 3 p. ...

အိုရှန်းနီးယား (အင်္ဂလိပ်: Oceania; UK: /ˌoʊʃiˈɑːniə, ˌoʊsi-/[1] သို့မဟုတ် US: /ˌoʊʃiːˈæniə/),[2] Oceanica ဟုလည်း ခေါ်ဆို[3]) ဆိုသည်မှာ ပင်လယ်သမုဒ္ဒရာများအတွင်းတွင် အသီးသီးပြန့်ကျဲနေသော ကျွန်းကြီးကျွန်းငယ်များ အသီးသီးဖြင့် ဖွဲ့စည်းထားသည့် အစုအဝေးကြီးကို ဆိုလိုသည်။ ထိုထက် တိကျစွာဆိုရလျှင် ပစိဖိတ်သမုဒ္ဒရာအတွင်းတွင် ရှိသော အင်ဒိုနီးရှား နှင့် ဩစတြေးလျ နိုင်ငံများမှ တောင်အမေရိကတိုက်ကြားရှိ ...