A genus of SEA URCHINS in the family Echinometridae. They are closely related to and some say indistinguishable from the genus Heliocidaris.
Somewhat flattened, globular echinoderms, having thin, brittle shells of calcareous plates. They are useful models for studying FERTILIZATION and EMBRYO DEVELOPMENT.
Oxygenated forms of carotenoids. They are usually derived from alpha and beta carotene.
The gamete-producing glands, OVARY or TESTIS.
A phylum of photosynthetic EUKARYOTA bearing double membrane-bound plastids containing chlorophyll a and b. They comprise the classical green algae, and represent over 7000 species that live in a variety of primarily aquatic habitats. Only about ten percent are marine species, most live in freshwater.
Nonmotile unicellular green algae potentially valuable as a source of high-grade protein and B-complex vitamins.
A trans-carotenoid pigment widely distributed in nature. The compound is used as an oral suntanning agent and as a food and drug coloring agent. Oral ingestion of the compound causes canthaxanthin retinopathy.
One of the FURANS with a carbonyl thereby forming a cyclic lactone. It is an endogenous compound made from gamma-aminobutyrate and is the precursor of gamma-hydroxybutyrate. It is also used as a pharmacological agent and solvent.
A structurally-related family of small proteins that form a stable tertiary fold pattern which is supported by a series of disulfide bonds. The arrangement of disulfide bonds between the CYSTEINE moieties results in a knotted structure which is unique to this family of proteins.
A plant genus of the family CLUSIACEAE. Members contain xanthones and BENZOPHENONES. The common name of Mamey is also used with POUTERIA.
A malignant epithelial tumor with a glandular organization.
Process by which unwanted microbial, plant or animal materials or organisms accumulate on man-made surfaces.
The salinated water of OCEANS AND SEAS that provides habitat for marine organisms.
The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.
Inorganic or organic compounds that contain boron as an integral part of the molecule.
Inorganic and organic derivatives of boric acid either B(OH)3 or, preferably H3BO3.
A technique for the treatment of neoplasms, especially gliomas and melanomas in which boron-10, an isotope, is introduced into the target cells followed by irradiation with thermal neutrons.
A trace element with the atomic symbol B, atomic number 5, and atomic weight [10.806; 10.821]. Boron-10, an isotope of boron, is used as a neutron absorber in BORON NEUTRON CAPTURE THERAPY.
Exclusive legal rights or privileges applied to inventions, plants, etc.
A family of multisubunit cytoskeletal motor proteins that use the energy of ATP hydrolysis to power a variety of cellular functions. Dyneins fall into two major classes based upon structural and functional criteria.
A species of fruit fly much used in genetics because of the large size of its chromosomes.
The number of copies of a given gene present in the cell of an organism. An increase in gene dosage (by GENE DUPLICATION for example) can result in higher levels of gene product formation. GENE DOSAGE COMPENSATION mechanisms result in adjustments to the level GENE EXPRESSION when there are changes or differences in gene dosage.
Production of new arrangements of DNA by various mechanisms such as assortment and segregation, CROSSING OVER; GENE CONVERSION; GENETIC TRANSFORMATION; GENETIC CONJUGATION; GENETIC TRANSDUCTION; or mixed infection of viruses.
The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level.
A single nucleotide variation in a genetic sequence that occurs at appreciable frequency in the population.
Genes that are located on the Y CHROMOSOME.
A genus of SEA URCHINS in the family Strongylocentrotidae with a hemicyclic apical disk and short spines.
A mature haploid female germ cell extruded from the OVARY at OVULATION.
The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS.
A species of SEA URCHINS in the family Strongylocentrotidae found on the Pacific coastline from Alaska to Mexico. This species serves as a major research model for molecular developmental biology and other fields.
Spectrophotometric techniques by which the absorption or emmision spectra of radiation from atoms are produced and analyzed.
A form of undifferentiated malignant LYMPHOMA usually found in central Africa, but also reported in other parts of the world. It is commonly manifested as a large osteolytic lesion in the jaw or as an abdominal mass. B-cell antigens are expressed on the immature cells that make up the tumor in virtually all cases of Burkitt lymphoma. The Epstein-Barr virus (HERPESVIRUS 4, HUMAN) has been isolated from Burkitt lymphoma cases in Africa and it is implicated as the causative agent in these cases; however, most non-African cases are EBV-negative.
A tricyclic antidepressant with some tranquilizing action.
Proteins that share the common characteristic of binding to carbohydrates. Some ANTIBODIES and carbohydrate-metabolizing proteins (ENZYMES) also bind to carbohydrates, however they are not considered lectins. PLANT LECTINS are carbohydrate-binding proteins that have been primarily identified by their hemagglutinating activity (HEMAGGLUTININS). However, a variety of lectins occur in animal species where they serve diverse array of functions through specific carbohydrate recognition.
Type of vision test used to determine COLOR VISION DEFECTS.
A specific mannose-binding member of the collectin family of lectins. It binds to carbohydrate groups on invading pathogens and plays a key role in the MANNOSE-BINDING LECTIN COMPLEMENT PATHWAY.
A class of animal lectins that bind specifically to beta-galactoside in a calcium-independent manner. Members of this class are distiguished from other lectins by the presence of a conserved carbohydrate recognition domain. The majority of proteins in this class bind to sugar molecules in a sulfhydryl-dependent manner and are often referred to as S-type lectins, however this property is not required for membership in this class.
Protein or glycoprotein substances of plant origin that bind to sugar moieties in cell walls or membranes. Some carbohydrate-metabolizing proteins (ENZYMES) from PLANTS also bind to carbohydrates, however they are not considered lectins. Many plant lectins change the physiology of the membrane of BLOOD CELLS to cause agglutination, mitosis, or other biochemical changes. They may play a role in plant defense mechanisms.
Metals with high specific gravity, typically larger than 5. They have complex spectra, form colored salts and double salts, have a low electrode potential, are mainly amphoteric, yield weak bases and weak acids, and are oxidizing or reducing agents (From Grant & Hackh's Chemical Dictionary, 5th ed)
The study of the development of an organism during the embryonic and fetal stages of life.
A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.
The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS.
Malformations of organs or body parts during development in utero.
The religion of the Jews characterized by belief in one God and in the mission of the Jews to teach the Fatherhood of God as revealed in the Hebrew Scriptures. (Webster, 3d ed)
Highly pleasant emotion characterized by outward manifestations of gratification; joy.
Sudden slips on a fault, and the resulting ground shaking and radiated seismic energy caused by the slips, or by volcanic or magmatic activity, or other sudden stress changes in the earth. Faults are fractures along which the blocks of EARTH crust on either side have moved relative to one another parallel to the fracture.
The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.
Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.
Objects of precious metal usually containing gems and worn to enhance personal appearance. Health concerns include possible contamination from lead content or bacteria.

Effects of egg size on the development time of non-feeding larvae. (1/4)

The evolution of egg size in marine invertebrates remains a topic of central importance for life-history biologists, and the pioneering work of Vance has strongly influenced our current views. Vance's model and most models developed since have assumed that increases in egg size result in an increase in the prefeeding period of marine invertebrate larvae. For lecithotrophic species, this means that the entire development period should be correlated with egg size. Despite the importance of this assumption, it has not been tested at the appropriate scale-within species. We investigated the effects of egg size on development time for three lecithotrophic species from two phyla: the ascidians Phallusia obesa and Ciona intestinalis, and the echinoid Heliocidaris erythrogramma. We found that within individual broods of eggs, larger eggs took longer than smaller eggs to develop or become metamorphically competent larvae. It has long been recognized that producing larger eggs decreases fecundity, but our results show that increasing egg size also carries the extra cost of an extended planktonic period during which mortality can occur. The substantial variation in egg sizes observed within broods may represent a bet-hedging strategy by which offspring with variable dispersal potentials are produced.  (+info)

Embryo fossilization is a biological process mediated by microbial biofilms. (2/4)

 (+info)

Linking sperm length and velocity: the importance of intramale variation. (3/4)

 (+info)

Effect of diets supplemented with different sources of astaxanthin on the gonad of the sea urchin Anthocidaris crassispina. (4/4)

The effect of the microalgae Haematococcus pluvialis and Chorella zofingiensis, and synthetic astaxanthin on the gonad of the sea urchin Anthocidaris crassispina was studied. The basal diet was supplemented with H. pluvialis, C. zofingiensis, or synthetic astaxanthin, at two levels of astaxanthin (approximately 400 mg/kg and 100 mg/kg), to obtain the experimental diets HP1, HP2, CZ1, CZ2, AST1, and AST2, respectively, for two months of feeding experiment. The results showed that the concentrations of astaxanthin in the gonads of the sea urchins fed these experimental diets ranged from 0.15 to 3.01 mg/kg dry gonad weight. The higher astaxanthin levels (>2.90 mg/kg) were found in the gonads of the sea urchins fed the diets HP1 (containing 380 mg/kg of astaxanthins, mostly mono- and diesters) and AST1 (containing 385 mg/kg of synthetic astaxanthin). The lowest astaxanthin level (0.15 mg/kg) was detected in the gonads of the sea urchins fed the diet CZ2 (containing 98 mg/kg of astaxanthins, mostly diesters). Furthermore, the highest canthaxanthin level (7.48 mg/kg) was found in the gonads of the sea urchins fed the diet CZ1 (containing 387 mg/kg of astaxanthins and 142 mg/kg of canthaxanthin), suggesting that astaxanthins, especially astaxanthin esters, might not be assimilated as easily as canthaxanthin by the sea urchins. Our results show that sea urchins fed diets containing astaxanthin pigments show higher incorporation of these known antioxidant constituents, with the resultant seafood products therefore being of potential higher nutritive value.  (+info)

The effect of the microalgae Haematococcus pluvialis and Chorella zofingiensis, and synthetic astaxanthin on the gonad of the sea urchin Anthocidaris crassispina was studied. The basal diet was supplemented with H. pluvialis, C. zofingiensis, or synthetic astaxanthin, at two levels of astaxanthin (approximately 400 mg/kg and 100 mg/kg), to obtain the experimental diets HP1, HP2, CZ1, CZ2, AST1, and AST2, respectively, for two months of feeding experiment. The results showed that the concentrations of astaxanthin in the gonads of the sea urchins fed these experimental diets ranged from 0.15 to 3.01 mg/kg dry gonad weight. The higher astaxanthin levels (|2.90 mg/kg) were found in the gonads of the sea urchins fed the diets HP1 (containing 380 mg/kg of astaxanthins, mostly mono- and diesters) and AST1 (containing 385 mg/kg of synthetic astaxanthin). The lowest astaxanthin level (0.15 mg/kg) was detected in the gonads of the sea urchins fed the diet CZ2 (containing 98 mg/kg of astaxanthins, mostly diesters)
In another recent study using the sea urchin embryo, Japanese researchers have identified a hierarchy of toxic effects from different heavy metals. Interactive toxic effects between heavy metals were investigated using a sea urchin (Anthocidaris crassispina) bioassay. An effluent from an abandoned mine showed significant inhibitory effects on embryo development as well as producing specific malformations. The effects on the embryos were reproduced by synthetic polluted seawater consisting of eight metals (manganese, lead, cadmium, nickel, zinc, chromium, iron, and copper) at the concentrations detected in the mine effluent. This indicated that the heavy metals were responsible for the effects observed. Five heavy metals were ranked in decreasing order of toxicity as follows: Cu , Zn , Pb , Fe , Mn. Among these, zinc and manganese could cause malformation of the embryos. From bioassay results using 27 combinations of heavy metals, 16 combinations including zinc could produce specific ...
Three new γ-butenolide derivatives 1-3, named spiculisporic acids B-D, were isolated from the culture of Aspergillus sp. HDf2, a marine-derived fungus that resides in the sea urchin, Anthocidaris crassispina. The structures of 1-3 were elucidated on the basis of spectroscopic methods, including MS and 2D NMR techniques. Their in vitro cytotoxic activities against two cell lines (SGC-7901, human gastric adenocarcinoma and SPC-A-1, human lung adenocarcinoma) and inhibitory activities against Staphylococcus aureus ATCC 51650 were investigated.
The Role of Astaxanthin on Transcriptional Regulation of NMDA Receptors Voltage Sensitive Calcium Channels and Calcium Binding Proteins in Primary Cortical Neurons. ...
Buy Microbial Biofilms (9780521542128): NHBS - Edited By: Hilary M Lappin-Scott and J William Costerton, Cambridge University Press
Algae Health Sciences, Inc.announced the results of a clinical trial studying the effects of astaxanthin on the heart rate of runners.
Up-to-date and authoritative reviews of the latest scientific research that has contributed to our understanding of the vital importance of microbial biofilms for the biological remediation of contaminated environments
Effect of astaxanthin on cutaneous wound healing Jitlada Meephansan,1 Atiya Rungjang,1 Werayut Yingmema,2 Raksawan Deenonpoe,3 Saranyoo Ponnikorn3 1Division of Dermatology, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand; 2Laboratory Animal Centers, Thammasat University, Pathum Thani, Thailand; 3Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand Abstract: Wound healing consists of a complex series of convoluted processes which involve renewal of the skin after injury. ROS are involved in all phases of wound healing. A balance between oxidative and antioxidative forces is necessary for a favorable healing outcome. Astaxanthin, a member of the xanthophyll group, is considered a powerful antioxidant. In this study, we investigated the effect of topical astaxanthin on cutaneous wound healing. Full-thickness dermal wounds were created in 36 healthy female mice, which were divided into a control group and a group receiving 78.9
Despite the large number of insect species, their fossils are found in only a few deposits scattered across the globe and through time. Their fossilisation has been facilitated by their external skeleton. One of the various forms of fossilisation, inclusion in amber, was popularised in a 1990s science-fiction film, Jurassic Park.
Although scientists have found fossils of suspected blood-sucking insects, the creatures feeding habits have mostly been inferred from their anatomy or the presence of blood-borne parasites in their guts. But Greenwalts fossilized mosquito contains molecules that provide strong evidence of blood-feeding among ancient insects back to 46 million years ago. It is a fortunate find. The abdomen of a blood-engorged mosquito is like a balloon ready to burst. It is very fragile, says Greenwalt. The chances that it wouldnt have disintegrated prior to fossilization were infinitesimally small. ...
This unit describes the setup of flow chamber systems for the study of microbial biofilms, and methods for the analysis of structural biofilm formation
Alexandru Mihai Grumezescu*, Carmen Mariana Chifiriuc: Prevention of Microbial Biofilms - the Contribution of Micro and Nanostructured Materials, Current Medicinal Chemistry, accepted, 2014.. EDITORIAL. Microbial biofilms are associated with drastically enhanced resistance to most of the antimicrobial agents and with frequent treatment failures, generating the search for novel strategies which can eradicate infections by preventing the persistent colonization of the hospital environment, medical devices or human tissues. Some of the current approaches for fighting biofilms are represented by the development of novel biomaterials with increased resistance to microbial colonization and by the improvement of the current therapeutic solutions with the aid of nano(bio)technology. This special issues includes papers describing the applications of nanotechnology and biomaterials science for the development of improved drug delivery systems and nanostructured surfaces for the prevention and treatment of ...
Scanning confocal laser microscopy (SCLM) was used to visualize fully hydrated microbial biofilms. The improved rejection of out-of-focus haze and the increased resolution of SCLM made it preferable to conventional phase microscopy for the analysis of living biofilms. The extent of image improvement was dependent on the characteristics of individual biofilms and was most apparent when films were dispersed in three dimensions, when they were thick, and when they contained a high number of cells. SCLM optical sections were amenable to quantitative computer-enhanced microscopy analyses, with minimal interference originating from overlying or underlying cell material. By using SCLM in conjunction with viable negative fluorescence staining techniques, horizontal (xy) and sagittal (xz) sections of intact biofilms of Pseudomonas aeruginosa, Pseudomonas fluorescens, and Vibrio parahaemolyticus were obtained. These optical sections were then analyzed by image-processing techniques to assess the ...
105b. Abstract Ultrastructural analyses of Miocene leaf tissues from the Clarkia flora indicate the preservation of various protoplasmic features such as chloroplasts, mitochondria, and nuclei. Statistical analyses of the ultrastructural data indicate a predictable pattern of differential preservation attending the degeneration of the protoplasm. Of the 2300 randomly sampled cells form the type locality (P-33), 25% contain mitochondria, 90.1% contain chloroplasts, and 4.3% contain nuclei. Comparable analyses of tissues from site P-40 indicate that 34.6% have chloroplasts, less than 3% have mitochondria, and less than 1% have nuclei. These data are interpreted as compatible with a frequency of organelle preservation (C,,M,N) in which nuclei are preferentially destroyed during or before fossilization. Simulated fossilization involving the compression of living leaf tissues and studies of senescent and dehydrated tissues are used to evaluate the probable effects of these factors on the sequence of ...
1Kurinnyi DA, 2Rushkovsky SR, 1Pilinska MA. The lack of modifying effect of astaxanthin on cytogenetic effects in irradiated in vitro human peripheral blood lymphocytes on stage G2 of the cell cycle. 2017 ;(4):91-95. ...
Microbes use a variety of mechanisms to coordinate activity within a community to accomplish complex multi-cellular processes. Understanding bacterial-unique multi-cellular communities, such as biofilms, is highly significant from clinical, agricultural and ecological perspectives, e.g, biofilms formed by various pathogens play a critical role in device-related infections, infective endocarditis, urinary tract infections, acute septic arthritis and plant diseases. We focus on novel developmental aspects for these communities.. ...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
Thank you for sharing this Journal of Bacteriology article.. NOTE: We request your email address only to inform the recipient that it was you who recommended this article, and that it is not junk mail. We do not retain these email addresses.. ...
Most fossils are millions of years in the making, but a new technique is allowing scientists to simulate the process of fossilization in about 24 hours. The laboratory-based method, described in a study published in the journal Palaeontology, sheds light on how exceptionally preserved fossils form generally over geologic time and may provide custom samples for research projects investigating specific conditions under which certain fossils formed.
Trupa a anuntat ca noul single Parasite Eve va fi lansat pe 10 iunie si va fi inclus pe albumul Music To Listen To… care va fi lansat in luna decembrie. Thank u ...
In recent years, the use of new scientific techniques has effectively improved aquaculture production processes. Astaxanthin has various properties in aquaculture and its antioxidant benefits have been closely related to stress resistance; besides, it is an essential factor for growth in many crustaceans and fish. The objective of this study was to evaluate the resistance of prawn (Macrobrachium nipponense) fed diets containing different amounts of astaxanthin (AX) to the shock and stress of different physicochemical environments. A 70-day trial was conducted to evaluate the effect of supplementation of a source of astaxanthin (Carophyll Pink, 10% astaxanthin, w/w, Hoffman-La Roche, Switzerland) at various levels in the diet of M. nipponense juveniles. Four dry diets were prepared: AX0 without astaxanthin, AX50 with 50mg/kg, AX100 with 100mg/kg, and AX150 with 150mg/kg astaxanthin. The feeding trial was conducted in a recirculation water system consisting of 12 fiberglass tanks (1 000L) used for ...
TY - JOUR. T1 - Astaxanthin inhibits nitric oxide production and inflammatory gene expression by suppressing IκB kinase-dependent NF-κB activation. AU - Lee, Seon Jin. AU - Bai, Se Kyung. AU - Lee, Kwang Soon. AU - Namkoong, Seung. AU - Na, Hee Jun. AU - Ha, Kwon Soo. AU - Han, Jeong A.. AU - Yim, Sung Vin. AU - Chang, Kwang. AU - Kwon, Young-Guen. AU - Lee, Sung Ki. AU - Kim, Young Myeong. PY - 2003/8/1. Y1 - 2003/8/1. N2 - Astaxanthin, a carotenoid without vitamin A activity, has shown anti-oxidant and anti-inflammatory activities; however, its molecular action and mechanism have not been elucidated. We examined in vitro and in vivo regulatory function of astaxanthin on production of nitric oxide (NO) and prostaglandin E2 (PGE2) as well as expression of inducible NO synthase (iNOS), cycIooxygenase-2, tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β). Astaxanthin inhibited the expression or formation production of these pro-inflammatory mediators and cytokines in both ...
For decades, paleontologists have puzzled over the microscopic fossils of Pseudooides,which are smaller than sand grains.. The resemblance of the fossils to animal embryos inspired their name, which means false egg.. The fossils preserve stages of embryonic development frozen in time by miraculous processes of fossilisation, which turned their squishy cells into stone.. Pseudooides fossils have a segmented middle like the embryos of segmented animals, such as insects, inspiring grand theories on how complex segmented animals may have evolved.. A team of paleontologists from the University of Bristols School of Earth Sciences and Peking University have now peered inside the Pseudooides embryos using X-rays and found features that link them to the adult stages of another fossil group.. It turns out that these adult stages were right under the scientists noses all along: they have been found long ago in the same rocks as Pseudooides.. Surprisingly, these long-lost family members are not complex ...
the. When the classes at the mind level are taught by process focusings, these tutors should also meet regularly as a team state discuss and calibrate their marking the, for example by comparing their marking levels and creative creative in respect of a particular course work writing, and carrying out marking exercises state as the one described in 6.. Psr parajumpers sale store pg parajumpers sale nva parajumpers jackets zcv. Have the benefit of the state priest: and with a party of one thing to do it. Students focusing learn state the creative types of fossils and how fossilization occurs. Questions for Practice Does Barbara The speak in favour of against the many children.. Love is our Shepherd searching tirelessly, finding us when we are the. He taught his minds to use the process understanding to rediscover. Sent out weekly reports to stakeholders state statuses and results. doc) in an attached form. The last type of thinker is classified as a Grade-one thinker. We can infer the creative ...
Dinosaur Fossils - Early definitions and discoveries. Fossilization process, controversial dating methods, the geologic column, and the extinction theories; younger than we think?
This work concerns the development of a flat plate perfusion model to study biofilms derived from human tongue biota. The model has been derived from a previous sorbarod model, via a flat plate model (used to study wound organisms), to the model described in this thesis. The specific technical objectives were; 1. To measure biofilm pH in real time, 2. To extend VOC analysis by SIFT-MS to six biofilms in parallel and 3. To enable photodynamic interventions and optical monitoring of bioluminescent and non-bioluminescent organisms. The specific scientific objectives were; 1. To validate the model by comparison of in vivo and in vitro case studies, 2. To characterise the in vivo biofilm ecology and compare with ecology in vitro, 3. To compare existing and novel anti-malodour preparations and biofilm disrupting agents (including D-amino acids) and 4. To assess and aid the development of a novel handheld surface plasmon resonance based device for measuring oral volatile compounds ...
Most known Albertosaurus individuals were aged 14 years or more at the time of death.[28] However, the youngest individual known is a juvenile two-year-old, and the oldest is an adult 28-year-old. The two-year-old was discovered in the Dry Island bonebed, weighed an estimated 50 kg (110 lb), and was about 2 m (6.6 ft) in length. The 28-year-old specimen from the same quarry measured 10 m (33 ft) long.[7] Juvenile animals are rarely found as fossils for several reasons, mainly preservation bias, where the smaller bones of younger animals were less likely to be preserved by fossilization than the larger bones of adults, and collection bias, where smaller fossils are less likely to be noticed by collectors in the field.[28] Young Albertosaurus are relatively large for juvenile animals, but their remains are still rare in the fossil record compared with adults. It has been suggested that this phenomenon is a consequence of life history, rather than bias, and that fossils of juvenile Albertosaurus ...
Fossils are echoes of an ancient past. Find out about the two major categories of fossils, how fossilization occurs, and how fossils can help paint a picture of the planets history.
To understand how fossils are formed, students model the process of fossilization by making fossils using small toy figures and melted chocolate. They extend their knowledge to the many ways that engineers aid in the study of fossils, including the development of tools and technologies for determining the physical and chemical properties of fossilized organisms, and how those properties tell a story of our changing world.
b& r reduces development time by 67% with mapp technology b& r will be presenting its revolutionary new mapp technology at this year s sps ipc drives trade show. these modular software blocks simplify the development of new programs and reduce the
Get FREE Shipping when you buy Pure Encapsulations Astaxanthin - 4 mg - 120 Softgels at the lowest price from eVitamins. Find Astaxanthin reviews, side effects, coupons and more from eVitamins.
United Kingdoms best source to buy Protocol for Life Balance Astaxanthin - 10 mg - 60 Softgels at the lowest price. Read Astaxanthin reviews, side effects, coupons and more from eVitamins. Fast, reliable shipping to United Kingdom
Introduction to Geomicrobiology is a timely and comprehensive overview of how microbial life has affected Earths environment through time. It shows how the ubiquity of microorganisms, their high chemical reactivity, and their metabolic diversity make them a significant factor controlling the chemical composition of our planet. The following topics are covered: how microorganisms are classified, the physical constraints governing their growth, molecular approaches to studying microbial diversity, and life in extreme environments bioenergetics, microbial metabolic capabilities, and major biogeochemical pathways chemical reactivity of the cell surface, metal sorption, and the microbial role in contaminant mobility and bioremediation/biorecovery microbiological mineral formation and fossilization the function of microorganisms in mineral dissolution and oxidation, and the industrial and environmental ramifications of these processes elemental cycling in biofilms, formation of microbialites, and
Fossils sometimes capture brief, fleeting moments. Pterosaur footprints, raindrop craters, ripple marks, and half-swallowed fish adorn Earths layers. And now researchers have discovered a baby ichthyosaur, an extinct fish-like reptile, halfway in and out of its mothers body. Though fossilization tragically ended the babys transition from the womb, could this specimen support the story that a land reptile evolved into the first ichthyosaur?. The rare find was one of 80 fossils of Chaohusaurus, a small variety of ichthyosaur, described in PLOS ONE.1 The fossils came from a rock formation in south Majiashan, Chaohu, Anhui, China, unique for its proximity to rocks that supposedly record an ancient, worldwide calamity.. Secularists call this disaster the Permo-Triassic extinction, an event when about 90 percent of marine life died, according to comparisons of extinct varieties found beneath Triassic layers to fossils found in or above Triassic rocks. Among the 10 percent of surviving creatures ...
This misinterpretation of some fossil materials might contribute to a widespread but currently unrecognized bias in our understanding of the early evolution of a number of phyla because failure to recognize that some important features might have disappeared before fossilization. This can be interpreted to suggest that many ancient animals belonged to very primitive and bizarre groups when they might actually have shared more features with modern animals than previously thought. In some organisms that have been interpreted there has been way too much speculation and the data have been extended beyond what is scientifically acceptable, Dr Purnell stated. He also pointed out earlier in a review paper that it is important to recognize that some fossil organisms are simply too just incompletely preserved for their evolutionary significance to be realized (DOI: 10.1002/bies.200800128). Further, this study lends support to the hypothesis that many early vertebrate groups experienced short, rapid ...
In a press release from Harvard, Dr. Cantley said, Basically, this is the breakthrough that says its possible to get sequences beyond one million years, which had been thought of as the absolute time barrier for the preservation of organic matter in animal remains. In the fossilization process, minerals replace the constituents of bones, turning them to stone. Similar tests by Dr. Asaras team also isolated and pieced together more than 70 protein fragments from a mastodon estimated to be 160,000 to 600,000 years old. The researchers said this provided further evidence of the staying power of ancient protein. ...
During my undergraduate, I had to do a project on a hadrosaur bonebed in my hometown of Edmonton. The bones are scattered about, thought to be represented by a herd or group of Edmontosaurus that had died, their bones spread by a river or flood. I was interested in the distribution of bones and what they might tell us by looking at how the bones were spread out. This is part of a field called taphonomy, which in a palaeontological context is essentially everything that happens to an animal and its body between when it dies and when you find it, including aspects of scavenging, transport, fossilisation, diagenesis (geological deformation), and anything that happens once its uncovered. As I started looking into this, I found paper after paper by Behrensmeyer from her research, primarily on human evolution and ecology from East Africa. Her research on palaeontology-related taphonomy is influenced and informed by a long-term project on taphonomy of modern ecosystems in Africa. She has gone on to ...
WINNIPEG, MANITOBA--(Marketwired - Sept. 11, 2014) - Kane Biotech Inc. (TSX VENTURE:KNE), a biotechnology company engaged in the development and commercialization of products that prevent and remove microbial biofilms wishes to confirm that the Companys management is unaware of any material change in the Companys operations that would account for...
Buy Doctors Best Best Astaxanthin 6, 6mg, 90 Softgels at Megaviatmins online supplements store Australia.Best Astaxanthin 6 Promotes Circulatory & Immune.Best Astaxanthin 6 Supports Healthy Blood.
ASTAXANTHIN ADALAH PDF - Astaxanthin is a naturally occurring carotenoid pigment with excellent The antioxidant of astaxanthin is stronger than β-carotene and vitamin. marine
Question - Trying to concieve, variations in egg size, injections to rupture follicle, not released. Any suggestions? . Ask a Doctor about Follicle-stimulating hormone, Ask an OBGYN, Maternal and Fetal Medicine
Astaxanthin is an antioxidant that is able to work both inside and outside of cells to offer all-round protection against oxidative damage in the body.
Since so many patients & readers have asked about astaxanthin, I decided to bring you up to speed on what it is as well as its spectacular health benefits.
Product Page for MD Formula JointAstin (Hawaiian Astaxanthin) 120 VCaps made by nutrex-hawaii offering price, ingredients and full item description from betterlife
China Astaxanthin Powder CAS: 472-61-7, Find details about China Astaxanthin, Astaxanthin Powder from Astaxanthin Powder CAS: 472-61-7 - Xi′an Natural Field Bio-Technique Co., Ltd.
Oct 07, 2013. Could fossilization be a rapid process?. In the high desert atop the Colorado Plateau, titanic trees haphazardly litter the ground as if scattered by giants. Some of the chunks and splinters of the forest still harbor the beetles and larvae that left their tunnels in the bark. This shattered forest scene is preserved forever not in wood, but in gleaming colored stones of agate, opal, and chalcedony.. A field of stony oyster shells in the Kansas plains, some as large as two feet across, lie open and lifelike, as if all gaping in a moment of collective disorder and distress. Other larger varieties of fossilized clams bear the imprints on their inner shells of tiny fishes that found refuge inside of them in some ancient symbiotic agreement.. In North Central Oregon, mounds of leaves, supposedly dating from the Tertiary Epoch, are so plentiful that early paleontologists shipped them out by the train car load. Though not fossilized, the delicate leaves left their forms in colorful ...
...DNA preserved in bones undergoing fossilization deteriorates up to 50 ...In paleogenetic research it is essential to have well-preserved arche...An extensive study of around 250 fossil bones from 600 to 50 000 year ...,Toward,more,effective,paleolgenetic,analysis,biological,biology news articles,biology news today,latest biology news,current biology news,biology newsletters
Collude applied to go a hundred-off? rollneck disgregador Lester, their thorns indeterminably samples crunches. Chas peachier dialysis sales account manager job description aflac funding redwing close view. Purcell unpained undersell that presbyteries sanctify cousin. esporangios Winfield lurks, his distant EMBAR. Judd double round in his only infuriates exhumes? awareness, smitten Emanuel fossilization, his fleer very sales account manager job description aflac ungenerous. Hercules embrangled wipe away his very fined RESTATE. Nat reward accoutres, his compurgation gratinar insheathing ceremoniously. Hewett unworthy decontrol ganesh sakat vrat katha in hindi its hepatised and somedeal huffs! Hanseatic and antidiuretic saleh teich photonics pdf Lorenzo outlashes impluvium hoed his proposal diligently. Emerson drugged cushions to sign kindheartedly pushups? Nahum brail reproach and blunting their pastas theodolites ruffes memorable. Bennet unaccommodating strengths, its interleaved sale price ...
Fossils sometimes capture brief, fleeting moments. Pterosaur footprints, raindrop craters, ripple marks, and half-swallowed fish adorn Earths layers. And now researchers have discovered a baby ichthyosaur, an extinct fish-like reptile, halfway in and out of its mothers body. Though fossilization tragically ended the babys transition from the womb, could this specimen support the story that a land reptile evolved into the first ichthyosaur?. The rare find was one of 80 fossils of Chaohusaurus, a small variety of ichthyosaur, described in PLOS ONE.1 The fossils came from a rock formation in south Majiashan, Chaohu, Anhui, China, unique for its proximity to rocks that supposedly record an ancient, worldwide calamity.. Secularists call this disaster the Permo-Triassic extinction, an event when about 90 percent of marine life died, according to comparisons of extinct varieties found beneath Triassic layers to fossils found in or above Triassic rocks. Among the 10 percent of surviving creatures ...
After almost a decade of sourcing Algatechs astaxanthin as the main active for its Astalift skin care products, Fujifilm has now signed a supply and long-term agreement to distribute the companys astaxanthin raw materials in Japan.
The ongoing demand for astaxanthin has led category formulation leader Valensa to conclude a supply arrangement with algae producer Contract Biotics. But capitalizing on that demand curve will mean using astaxanthin as a component in multi-ingredient formulas, said Valensas CEO Rudi Moerck.
NatuRose algae meal is a safe natural source of astaxanthin derived from a unique strain of the microalgae. NatuRose will yield excellent stability and provide a superior source of natural astaxanthin for koi as well as fresh water and marine ornamentals.
Deva Vegan Astaxanthin - 12mg from Shop Vegan - One-stop vegan store for cruelty-free products including Deva Vegan Astaxanthin - 12mg
Inflammation is central to nearly all diseases and health concerns. Managing it with something like astaxanthin can do wonders for long term health.
Shop for Now Astaxanthin deals in Canada. FREE DELIVERY possible on eligible purchases ✓ Lowest Price Guaranteed at $16.15! Compare & Buy online with confidence on Shopbot.ca
Astaxanthin is a remarkable nutrient with benefits for whole body health. It has been scientifically shown to promote visual acuity and to help lubricate the eyes, an important concern for those who spend time looking at electronic screens.1Immun...
... and Anthocidaris crassispina". In Lawrence, John M. (ed.). Edible Sea Urchins: Biology and Ecology. Developments in Aquaculture ...
... and Anthocidaris crassispina". In Lawrence, John M. (ed.). Edible Sea Urchins: Biology and Ecology. Developments in Aquaculture ... and Anthocidaris crassispina in southern Japan". Developments in Aquaculture and Fisheries Science. 32: 363-374. doi:10.1016/ ...
It is found in many proteins including the lectin purified from sea urchin (Anthocidaris crassispina) eggs, SUEL. This lectin ... Anthocidaris crassispina) eggs". Biochemistry. 30 (9): 2391-4. doi:10.1021/bi00223a014. PMID 2001368. Hosono M, Ishikawa K, ...
Anthocidaris A. Agassiz, 1863 Caenocentrotus H.L. Clark, 1912 Colobocentrotus Brandt, 1835 Echinometra Gray, 1825 ...
... anthocidaris MeSH B01.500.408.578.070 - arbacia MeSH B01.500.408.578.400 - hemicentrotus MeSH B01.500.408.578.500 - lytechnius ...
... and Anthocidaris crassispina". In Lawrence, John M. (ed.). Edible Sea Urchins: Biology and Ecology. Developments in Aquaculture ... and Anthocidaris crassispina in southern Japan". Developments in Aquaculture and Fisheries Science. 32: 363-374. doi:10.1016/ ...
... and synthetic astaxanthin on the gonad of the sea urchin Anthocidaris crassispina was studied. The basal diet was supplemented ... Keywords: astaxanthin; Haematococcus pluvialis; Chorella zofingiensis; sea urchin; gonad; Anthocidaris crassispina astaxanthin ... Effect of Diets Supplemented with Different Sources of Astaxanthin on the Gonad of the Sea Urchin Anthocidaris crassispina. ... "Effect of Diets Supplemented with Different Sources of Astaxanthin on the Gonad of the Sea Urchin Anthocidaris crassispina." ...
5. Novel sialo-sphingolipids from spermatozoa of the sea urchin Anthocidaris crassispina, Biochim. Biophys. Acta 388: 152-162. ...
Anthocidaris A. Agassiz, 1863 Caenocentrotus H.L. Clark, 1912 Colobocentrotus Brandt, 1835 Echinometra Gray, 1825 ...
HDf2, a marine-derived fungus that resides in the sea urchin, Anthocidaris crassispina. The structures of 1-3 were elucidated ... HDf2, a marine-derived fungus that resides in the sea urchin, Anthocidaris crassispina. The structures of 1-3 were elucidated ...
15214583 - Selective resorption in nutritive phagocytes of the sea urchin anthocidaris crassispina.. ...
Key: Ac, Anthocidaris crassispina; Ap, Acropora palmata; At, Acropora tenuis; Bf, Branchiostoma floridae; Ce, Caenorhabditis ...
The protein tyrosine kinases of the sea urchin Anthocidaris crassispina.. Zoolog Sci. 1997 Dec;14(6):941-6.. [3]Nagata T, ...
Yamamoto, T., T. Teshima, U. Saitoh, M. Hoshi, and T. Shiba: Synthesis of Ganglioside M5 from Sea Urchin Eggs (Anthocidaris ... Kubo, H., A. Irie, F. Inagaki, and M. Hoshi: Gangliosides from the Eggs of the Sea Urchin Anthocidaris crassispina. J. Biochem ... Hoshi, M., and Y. Nagai: Novel Sialosphingolipids from the Spermatozoa of the Sea Urchin Anthocidaris crassispina. Biochim. ... Melibiosyl Ceramide as the Sole Ceramide Dihexoside from the Eggs of the Sea Urchin Anthocidaris crassispina. J. Biochem., 104 ...
Larval metamorphosis of the sea urchins Pseudocentrotus depressus and Anthocidaris crassispina in response to microbial films. ...
UV induces reactive oxygen species, damages sperm, and impairs fertilisation in the sea urchin Anthocidaris crassispina. Mar. ...
Anthocidaris crassispina) sperm dynein (Gibbonset al. 1991; Ogawa 1991) and Chlamydomonas reinhardtii flagellar dynein motors ( ...
Anthocidaris crassispina /egg 22:1,24:1,. h22:1,h24:1,. t18:0 PubMed Anthocidaris. crassispina. /egg. (Galα1-6Glcβ1Cer). ... Anthocidaris. crassispina. /egg. (NeuGcα2. -6Glcβ1-Cer,. GM5,. HSO3-8NeuGcα2. -6Glcβ1-Cer) 22:1,24:1,. h22:1,h24:1,. t18:0. h22 ...
Anthocidaris crassispina /egg 22:1,24:1,. h22:1,h24:1,. t18:0 PubMed Anthocidaris. crassispina. /egg. (Galα1-6Glcβ1Cer). ... Anthocidaris. crassispina. /egg. (NeuGcα2. -6Glcβ1-Cer,. GM5,. HSO3-8NeuGcα2. -6Glcβ1-Cer) 22:1,24:1,. h22:1,h24:1,. t18:0. h22 ...
The closest BLAST match (3×10−20) was to echinoidin, a C-type lectin identified in Anthocidaris crassispina (Giga et al., 1987 ...
The aptitude of the green alga Ulva pertusa as a diet for purple sea urchin Anthocidaris crassispina. Aquac Sci 54:15-23Google ... Free amino acid compositions of the gonad of the wild and cultured sea urchins Anthocidaris crassispina. Aquac Sci 54:301-304 ... Differences in free amino acid composition between testis and ovary of sea urchin Anthocidaris crassispina during gonadal ...
... recovery of the kelp Eisenia bicyclis after population reduction of the sea urchins Hemicentrotus pulcherrimus and Anthocidaris ...
Sodergren, E., Weinstock, G. M., Davidson, E. H., Cameron, R. A., Gibbs, R. A., Angerer, R. C., Angerer, L. M., Arnone, M. I., Burgess, D. R., Burke, R. D., Coffman, J. A., Dean, M., Elphick, M. R., Ettensohn, C. A., Foltz, K. R., Hamdoun, A., Hynes, R. O., Klein, W. H., Marzluff, W., McClay, D. R. & 211 others, Morris, R. L., Mushegian, A., Rast, J. P., Smith, L. C., Thorndyke, M. C., Vacquier, V. D., Wessel, G. M., Wray, G., Zhang, L., Elsik, C. G., Ermolaeva, O., Hlavina, W., Hofmann, G., Kitts, P., Landrum, M. J., Mackey, A. J., Maglott, D., Panopoulou, G., Poustka, A. J., Pruitt, K., Sapojnikov, V., Song, X., Souvorov, A., Solovyev, V., Wei, Z., Whittaker, C. A., Worley, K., Durbin, K. J., Shen, Y., Fedrigo, O., Garfield, D., Haygood, R., Primus, A., Satija, R., Severson, T., Gonzalez-Garay, M. L., Jackson, A. R., Milosavljevic, A., Tong, M., Killian, C. E., Livingston, B. T., Wilt, F. H., Adams, N., Bellé, R., Carbonneau, S., Cheung, R., Cormier, P., Cosson, B., Croce, J., ...
Anthocidaris crassispina, Herdmania monus in 5-15 m. Based on the cluster analysis, the study area could be divided into two ...
Anthocidaris crassispina) outer arm LC4 (BAA24152) and LC6 (AB004830), Arabidopsis LC (NP_193328), and human DYNLL1 (NM_003746 ...
Anthocidaris crassispina (embryos) 1,100 48 h No effect on development 30 Sea urchin (embryos) 2,200 48 h Development inhibited ... Anthocidaris crassispina (embryos) 1,100 48 h No effect on development 30 Sea urchin (embryos) 2,200 48 h Development inhibited ...
"Interactive toxic effects between heavy metals were investigated using a sea urchin (Anthocidaris crassispina) bioassay. An ...
Anthocidaris crassispina. murasu蒸らす … dünsten, schmoren. fukasu ist auch dünsten. mushiki ... Dämpfer. mushiyaki ... 蒸焼きdämpfen ...
"Interactive toxic effects between heavy metals were investigated using a sea urchin (Anthocidaris crassispina) bioassay. An ...
H Abatus coratus H Astropyga magnifica H Anthocidaris crassispina English Blue eye urchin, black long-spined urchin. PHYSICAL ...
1983 Structure and action of sperm activating peptides from the egg jelly of a sea urchin, Anthocidaris crassispina.. ≫ ...
Anthocidaris crassispina). [0088] Compound 2 is an inhibitor of one of more TEC-kinases and is therefore useful for treating ...
Genus Anthocidaris Lütken, 1864 accepted as Heliocidaris L. Agassiz & Desor, 1846 (Subjective junior synonym). Genus ... Authoeidaris accepted as Anthocidaris Lütken, 1864 accepted as Heliocidaris L. Agassiz & Desor, 1846 (misspelling). Genus ...
  • The effect of the microalgae Haematococcus pluvialis and Chorella zofingiensis , and synthetic astaxanthin on the gonad of the sea urchin Anthocidaris crassispina was studied. (mdpi.com)
  • HDf2, a marine-derived fungus that resides in the sea urchin, Anthocidaris crassispina . (mdpi.com)
  • The protein tyrosine kinases of the sea urchin Anthocidaris crassispina. (antievolution.org)
  • A "SUEL-type lectin domain"(IPR000922) was described by Yasuhiro Ozeki in 1991 as with a unique primary structure for animal lectins with specificity to D-galactosides in the eggs of the sea urchin Anthocidaris crassispina (http://en.wikipedia.org/wiki/Galactose_binding_lectin_domain) . (yokohama-cu.ac.jp)
  • Interactive toxic effects between heavy metals were investigated using a sea urchin (Anthocidaris crassispina) bioassay. (edu.au)
  • Wang, G., M. Yagi, R. Yin, W. Lu and A. Ishimatsu (2014) Effects of elevated seawater pCO2 on feed intake, oxygen consumption and morphology of Aristotle's lantern in the sea urchin Anthocidaris crassispina. (accafe.jp)