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Tytuł:
Innovations Under the Concept of ‘Turning Garbage into Gold’ in Fisheries Waste Management
Autorzy:
Yusuf, Muhammad
Powiązania:
https://bibliotekanauki.pl/articles/474928.pdf
Data publikacji:
2013
Wydawca:
Fundacja Upowszechniająca Wiedzę i Naukę Cognitione
Tematy:
new entrepreneurship
innovation and creativity
Indonesia
fisheries waste
crab shell powder
Opis:
This paper discusses the encouragement of creativity and innovation in creating opportunities for entrepreneurship turning useless materials into valuable resources. It is necessary to know the thought process and planning in the entrepreneurship idea to create a new business at this time. One of the brilliant philosophies about entrepreneurs is that they are those who can “turn garbage into gold”. This concept describes the important character of entrepreneurs who foresee business opportunities and have the intelligence to transform trash into cash. This means that they have the necessary ability to create innovation and value-added products for sale. The analyzed case study involves innovation in using fisheries waste specifically derived from crab industries in Indonesia. The study presents empirical perspectives including (1) potential business of crab shell waste (2) technology in innovative use of shell to added value product (3) business analysis and commercialization. Ultimately, we present the concept of a new business by linking theories of entrepreneurial innovation and technology transfer in order to gain environmental balance.
Źródło:
Journal of Entrepreneurship, Management and Innovation; 2013, 9, 4; 101-122
2299-7075
2299-7326
Pojawia się w:
Journal of Entrepreneurship, Management and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Purification and characterization of antibacterial proteins from granular hemocytes of Indian mud crab, Scylla serrata
Autorzy:
Yedery, Roshan
Reddy, Kudumula
Powiązania:
https://bibliotekanauki.pl/articles/1040635.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
innate immunity
Scylla serrata
hemocytes
crab
antibacterial protein
Opis:
Marine invertebrates depend upon antimicrobial peptides (AMPs) as a major component of innate immunity, as they are rapidly synthesized and diffuse upon pathogen invasion. In this study, we report the identification and characterization of a 11 kDa antimicrobial protein, which we name SSAP (for Scylla serrata antimicrobial protein), from granular hemocytes of the mangrove crab S. serrata. The protein is highly similar to scygonadin, a male-specific AMP isolated from the ejaculatory duct of S. serrata. SSAP was isolated using various chromatographic techniques, viz. ion-exchange, ultra filtration and RP-HPLC, and demonstrated antibacterial activity against Gram positive and Gram negative bacteria. Full length mRNA encoding SSAP was amplified using a combination of RT-PCR and RACE. The nucleotide sequence revealed a full-length ORF of 381 bp coding for a preprotein of 126 amino acids comprising a signal peptide of 24 amino acids and a mature protein of 102 amino acids with a predicted mass of 11435 Da and pI of 5.70. Unlike scygonadin, SSAP is expressed in several tissues of both male and female crabs, as evidenced by RT-PCR, Northern and Western blot analyses. The study suggests that SSAP might be an isoform or a variant of scygonadin and might play an important role in regulating the immunity of the crab upon microbial infection.
Źródło:
Acta Biochimica Polonica; 2009, 56, 1; 71-82
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gonad maturity in female Chinese mitten crab Eriocheir sinensis from the Southern Baltic Sea – the first description of ovigerous females and the embryo developmental stage
Autorzy:
Wojcik, D.
Normant, M.
Powiązania:
https://bibliotekanauki.pl/articles/47779.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
gonad maturity
Chinese mitten crab
Eriocheir sinensis
female
non-native species
embryo
development stage
Baltic Sea
Źródło:
Oceanologia; 2014, 56, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Chinese mitten crab Eriocheir sinensis on blue mussel Mytilus edulis trossulus – laboratory studies of claw strength, handling behavior, consumption rate, and size selective predation
Autorzy:
Wojcik, D.
Normant, M.
Dmochowska, B.
Fowler, A.
Powiązania:
https://bibliotekanauki.pl/articles/47901.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
non-indigenous species
Chinese mitten crab
Eriocheir sinensis
blue mussel
Mytilus edulis trossulus
population abundance
coastal water
Baltic water
Źródło:
Oceanologia; 2015, 57, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Size Distribution and Sex Ratio of the Blue Swimming Crab (Portunus (Portunus) pelagicus Linnaeus, 1758) Commodities in Gebang Mekar Village, Cirebon Regency, West Java, Indonesia
Autorzy:
Shabrina, Nabilla
Khan, Alexander M. A.
Gumilar, Iwang
Supriadi, Dedi
Powiązania:
https://bibliotekanauki.pl/articles/1031889.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Portunus pelagicus
blue swimming crab
carapace width
gebang mekar village
sex ratio
Opis:
Blue swimming crab (Portunus (Portunus) pelagicus (Linnaeus, 1758)) is included as one of the fishery commodities that has high economic value and becomes one of the primadonnas in the field of fisheries. Besides in the local market, the blue swimming crabs can be one of the high levels and promising export commodities. The purpose of this research is to determine the size distribution and sex ratio from blue swimming crab in Java Sea near Gebang Mekar Village, Cirebon Regency. This research was conducted in Gebang Mekar Village, Cirebon Regency at September 2019 – October 2019 using the case study method with descriptive analysis and quantitative approach. Primary data used are the carapace width of blue swimming crab, amount of male and female blue swimming crab and female blue swimming crab containing egg. The results of the research that blue swimming crab catched by crab gillnet in Java Sea near Gebang Mekar Village, Cirebon Regency have sex ratio 1:1 and the growth of male crabs in these waters was faster than that of female crabs.
Źródło:
World News of Natural Sciences; 2020, 30, 2; 232-242
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Miocene burrows of the Ghost Crab Ocypode and their environmental significance (Mykolaiv Sands, Fore-Carpathian Basin, Ukraine)
Autorzy:
Radwański, A.
Wysocka, A.
Górka, M.
Powiązania:
https://bibliotekanauki.pl/articles/138926.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
baden
krab
miocen środkowy
nora
Ocypode
paleośrodowisk
Paratetydy
sedymentologia
Ukraina
Badenian
burrows
Ghost Crab Ocypode
Middle Miocene
palaeoenvironment
Paratethys
sedimentology
Ukraine
Opis:
The huge lithosome of the Middle Miocene (Early Badenian) Mykolaiv Sands, developed at the external margin of the Fore-Carpathian Basin in western Ukraine, is recognized to represent a shallowing-up sequence. Special attention is paid to burrows of the Ghost Crab Ocypode which are pantropical in present-day littoral habitats. In the Stratyn section, burrows of this type become a crucial tool in the interpretation of basin bathymetry, which starts from distal offshore depths, through the foreshore, to the backshore where the Ocypode burrows record a temporary break in sedimentation. Lithification of the sand layers and the Ocypode burrows subsequently progressed in beachrock mode. The Stratyn section demonstrates that the development of submerged shoals and/or emergent parts, throughout the huge mass of the Mykolaiv Sands, is probably responsible for their great variation in thickness in western Ukraine, which has long proved difficult to explain.
Źródło:
Acta Geologica Polonica; 2012, 62, 2; 217-229
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Epibiota associated with setae on Chinese mitten crab claws (Eriocheir sinensis H. Milne-Edwards, 1853): a first record
Autorzy:
Normant, M.
Korthals, J.
Szaniawska, A.
Powiązania:
https://bibliotekanauki.pl/articles/47515.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
claw
new habitat
fresh water
Eriocheir sinensis
brackish water
animal morphology
Chinese mitten crab
crab
Opis:
Eriocheir sinensis H. Milne-Edwards, 1853 is a non-native species found in European waters. Analyses of mitten crabs caught in brackish waters (Gulf of Gdańsk, Poland) and in freshwater (Havel River, Germany) have indicated that numerous epibionts (possibly temporary) inhabit the dense setal mats that cover the chelipeds. Of the 950 associates found on 22 crabs collected from brackish water, the most abundant were Nematoda (82.3%), followed by Bivalvia (10.3%), Crustacea (5.6%), Oligochaeta (1.2%) and Gastropoda (0.6%). In comparison, 1280 specimens (Chironomidae – 67.6% and Halacaridae – 32.4%), were identified from 13 crabs collected in freshwater. As this crab can migrate long distances, it is capable of transporting native and non-native species via its mittened claws to new habitats.
Źródło:
Oceanologia; 2007, 49, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Epibiotic mites associated with the invasive Chinese mitten crab Eriocheir sinensis – new records of Halacaridae from Poland
Autorzy:
Normant, M.
Zawal, A.
Chatterjee, T.
Wojcik, D.
Powiązania:
https://bibliotekanauki.pl/articles/48732.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
epibiotic mite
mite
Chinese mitten crab
Eriocheir sinensis
Halacaridae
non-native species
Oribatida
Hydrachnidia
Polska
Źródło:
Oceanologia; 2013, 55, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Chinese mitten crab Eriocheir sinensis - an immigrant from Asia in the Gulf of Gdańsk
Autorzy:
Normant, M.
Chrobak, M.
Skora, K.
Powiązania:
https://bibliotekanauki.pl/articles/48447.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
crustacean
coastal water
Eriocheir sinensis
Baltic Sea
Gdansk Gulf
immigrant
Asia
exotic species
Chinese mitten crab
crab
Opis:
The present paper reports the occurrence of the Chinese mitten crab Eriocheir sinensis H.M ilne Edwards, 1854 in the coastal waters of the Gulf of Gdańsk, and attempts an initial characterization of the crabs occurring in this area.
Źródło:
Oceanologia; 2002, 44, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Chinese mitten crab Eriocheir sinensis (Decapoda: Grapsidae) from Polish waters
Autorzy:
Normant, M.
Wiszniewska, A.
Szaniawska, A.
Powiązania:
https://bibliotekanauki.pl/articles/47486.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Decapoda
Odra estuary
Eriocheir sinensis
Baltic Sea
Polish water
Chinese mitten crab
crab
Grapsidae
Opis:
The Chinese mitten crab Eriocheir sinensis Milne-Edwards, 1854 is a newcomer to the Baltic Sea. Previous studies have shown that since the 1940s single large specimens of this species have been caught annually in Polish waters. The invasion of the Chinese mitten crab has been reported from many European countries, including Poland, where it is especially abundant in the Odra Estuary. Of 186 specimens captured in Lake Dąbie in August 1998, 45% were females and 55% males. The carapace width of these crabs varied between 53 and 88 mm and the average wet weight was 169±45.3 g.
Źródło:
Oceanologia; 2000, 42, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using Applied Statistics for Accurate Size Classification of the Endangered Tachypleus tridentatus Horseshoe Crab
Autorzy:
Mohamed, Rozihan
Paul, Nur Alisa
Isa, Nor Syuhaida
Damanhuri, Joni Haryadi
Shahimi, Salwa
Pati, Siddhartha
John, Akbar
Nelson, Bryan Raveen
Powiązania:
https://bibliotekanauki.pl/articles/1839597.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
conservation
fishery
indicator
horseshoe crab
ecology
wild stock
Opis:
The Tachypleus tridentatus (Chelicerata: Xiphosura) is an arthropod that usually displays high site fidelity by restricting its distribution to natal vicinities. Briefly, shore perturbation from boating (Kudat), electric, cyanide and bombing (Kunak) and tourism (Semporna) in Sabah can impair the T. tridentatus growth and produce sexually mature adults with unusual size. The 8-point morphometry of Tachypleus tridentatus from Kudat (Sulu Sea), Kunak and Semporna (Celebes Sea), produces the final output constituting accurate size classification for the species. Meanwhile, T. tridentatus are sexually dimorphic (p = 0.968–0.989), where male T. tridentatus (from Kudat) has prosoma width (27.75 ± 2.68 cm) and weight (1050 ± 610 g) in smaller ranges when compared to the female (33.27 ± 4.68 cm; 3020 ± 1480 g) using the same comparison. In addition, the T. tridentatus populations from Kunak (prosoma width: male = 28.91 ± 1.48 cm, female = 29.44 ± 5.47 cm; weight: male = 800 ± 275 g; female = 2550 ± 155 g) and Semporna (prosoma width: male = 21.73 ± 1.34 cm, female = 24.42 ± 1.36 cm; weight: male = 485 ± 306 g, female = 1320 ± 640 g) differed site-wise. The descriptive statistics (average and standard deviation) relate 7.1–23.0% of T. tridentatus with negative size class. However, the applied statistics using stepwise analysis and regression curve (r2 = 0.566–0.833), relates 30.4% of T. tridentatus with negative size class. Considering weight to produce 100% T. tridentatus with positive size class, it is biased because some crabs are gravid with eggs and if attained unpaired (male and female), they may have recently fed. Therefore, the prosoma (male), interorbit (female) and telson lengths are identified as most appropriate for the size classification of T. tridentatus. Thus, the findings provide a novel baseline for conservation studies that monitor symmetrical and unusual growth in the T. Tridentatus wild stocks.
Źródło:
Journal of Ecological Engineering; 2021, 22, 4; 273-282
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zwichnięty czas uczenia się – paideia o rozwidlających się ścieżkach
THE LEARNING TIME IS OUT OF JOINT – PAIDEIA OF FORKING PATHS
Autorzy:
Maliszewski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/579408.pdf
Data publikacji:
2013
Wydawca:
Kujawsko-Pomorska Szkoła Wyższa w Bydgoszczy
Tematy:
czas zwichnięty
duch czasu
paideia
uczenie się
opór
sens
edukacyjny rytm
efekt kraba
the time is out of joint
Zeitgeist
learning
resistance
sense
a rhythm of education
the crab effect
Opis:
Tekst jest pedagogicznym komentarzem do słynnej frazy Szekspira i aluzją do znanego opowiadania Jorge Luisa Borgesa. Jesteśmy zrobieni z tkanki czasu. A niestety czas edukacji jawi się jako zwichnięty. Utraciliśmy nad nim kontrolę. Utraciliśmy głęboką więź z tradycją, rytm sprzyjający dojrzewaniu, antycypacyjny rozmach i dreszcz. Czas uczenia się uległ zwichnięciu, ponieważ edukacja nie oparła się historii i duchowi doraźności. W tej sytuacji pilnym pedagogicznym zadaniem jest walka o wartościowy czas. Czwartym wymiarem czasu – poza przeszłością, teraźniejszością i przyszłością – jest sens. W odzyskiwaniu czasu pedagogicznego istotny jest opór wobec „pościgu za Godotem” i dyspozycja do powolnego czytania. Uczenie się to rozwidlanie czasu.
The text is the pedagogical commentary to the famous phrase of Shakespeare and an allusion to the well-known short story by Jorge Luis Borges. We are all made from the tissue of time. And unfortunately time of education seems to be out of joint. We have lost control of it. We have lost a deep connection to tradition, the rhythm favourable to maturation, anticipatory panache and shiver. The learning time has been dislocated because education was not able to resist history and a spirit of immediacy. In this situation, educational urgent task is to fight for the quality time. The fourth dimension of time – apart from past, present, and future - is sense. In the recovery of the pedagogic time there are important: a resistance to „pursuit for Godot” and a disposition for slow reading. The learning is forking of the time.
Źródło:
Rocznik Naukowy Kujawsko-Pomorskiej Szkoły Wyższej w Bydgoszczy. Transdyscyplinarne Studia o Kulturze (i) Edukacji; 2012-2013, 7-8; 78-90
1896-5903
Pojawia się w:
Rocznik Naukowy Kujawsko-Pomorskiej Szkoły Wyższej w Bydgoszczy. Transdyscyplinarne Studia o Kulturze (i) Edukacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biosorption Performance of Biodegradable Polymer Powders for the Removal of Gallium(III) ions from Aqueous Solution
Autorzy:
Lee, Ching-Hwa
Lin, Hang-Yi
Cadogan, Elon I.
Popuri, Srinivasa R.
Chang, Chia-Yuan
Powiązania:
https://bibliotekanauki.pl/articles/778539.pdf
Data publikacji:
2015
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
chitosan
crab shell powder
gallium
Langmuir-Freundlich
kinetics
Opis:
Gallium (Ga) is considered an important element in the semiconducting industry and as the lifespan of electronic products decrease annually Ga-containing effluent has been increasing. The present study investigated the use of biodegradable polymer powders, crab shell and chitosan, in the removal of Ga(III) ions from aqueous solution. Ga(III) biosorption was modeled to Lagergren-first, pseudo-second order and the Weber-Morris models. Equilibrium data was modeled to the Langmuir, Freundlich and Langmuir-Freundlich adsorption isotherms to determine the probable biosorption behavior of Ga(III) with the biosorbents. The biosorbents were investigated by Fourier Transform Infrared Spectroscopy, X-ray Diffraction and Scanning Electron Microscopy/Energy Dispersive Spectra analysis.
Źródło:
Polish Journal of Chemical Technology; 2015, 17, 3; 124-132
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and characterization of composites based on hydroxyapatite nanoparticles and chitosan extracted from shells of the freshwater crab Potamon algeriense
Autorzy:
Lakrat, Mohammed
Fadlaoui, Soufiane
Aaddouz, Mohamed
El Asri, Ouahid
Melhaoui, Mohammed
El Miloud, Mejdoubi
Powiązania:
https://bibliotekanauki.pl/articles/1033995.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
Potamon algeriense
bone tissue engineering
chitosan
freshwater crab
nanocomposites
nanocrystalline hydroxyapatite
Opis:
Nanocrystalline hydroxyapatite (n-HAp), which has low crystallinity, has attracted great attention due to its similarity to the inorganic part of human bone. Therefore, many studies have focused on creating new formulations combining n-HAp with some biopolymers, such as chitosan, in order to imitate biological bone tissue. The importance of chitosan and its derivatives in biomedical applications has grown significantly in the last three decades due to its biodegradability and renewable source. Besides, chitosan and its derivatives present excellent biocompatibility and biofunctionality, which make them promising materials in bone tissue engineering. In the present study, the chitosan was, first, extracted from the shell of the freshwater crab species Potamon algeriense following demineralization, deproteinization, decolouration (raw chitin) and deacetylation (chitosan) steps. Then, a novel composite based on n-HAp and extracted chitosan (CTS) with varying chitosan contents, from 5% to 20% (w/w), was synthesized and characterized for potential application in tissue regeneration. The obtained composites were characterized using X-ray diffraction, Fourier transform infrared spectroscopy and thermogravimetric analysis. The precipitated n-HAp/CTS nanocomposites similar to natural bone are promising composites for bone tissue engineering applications.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2020, 25; 132-142
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silurian synziphosurine horseshoe crab Pasternakevia revisited
Autorzy:
Krzeminski, W.
Krzeminska, E.
Wojciechowski, D.
Powiązania:
https://bibliotekanauki.pl/articles/20993.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Silurian
horseshoe crab
arthropod
Pasternakevia
paleontology
Arthropoda
Xiphosura
Bunodidae
phylogenesis
Ukraine
stratigraphy
Opis:
The synziphosurine horseshoe crab Pasternakevia was until now known only from a single specimen. Herein we describe three new specimens from the outcrop close to the type locality of monotypic P. podolica that show several features that were unknown or only assumed in this genus. These characters include: a smooth surface of the carapace; an opisthosoma composed of ten segments, the first one being a microtergite (strongly reduced first opisthosomal segment usually hidden under the carapace), two or three last segments fused into a metasoma, and the telson. Pasternakevia is included in Bunodidae due to a hypertrophied tergite 2, but it is linked to the Pseudoniscidae by the shape of the opisthosoma.
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł

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