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196101
電子期刊
Débora de S. Silva-Camacho, and Joaquim N. de S. Santos, and Rafaela de S. Gomes, and Francisco G. Araújo
The aim of this study was to assess the ecomorphological patterns and diet of four Characiformes fish species in a poorly physically structured tropical reservoir. We tested the hypothesis that body shape and diet are associated, because environmental pressure acts on the phenotype, selecting traits according to the available resources. Ten ecomorphological attributes of 45 individuals of each species - Astyanax cf. bimaculatus (Linnaeus, 1758), Astyanax parahybae Eigenmann, 1908, Oligosarcus he...
關鍵字: fish
出版: Pensoft Publishers
ISSN: 1984-4670
來源: DOAJ
System ID: 417217
196102
電子期刊
Armani F. B., and Paltrinieri D.
Italy is the first European and world’s fifth largest producer of geothermal energy for power generation which actually accounts for less than 2% of the total electricity production of the country. In this paper after a brief introduction to the basic elements of high-enthalpy geothermal systems, we discuss the potentialities represented by the submarine volcanoes of the South Tyrrhenian Sea. In particular we focus on Marsili Seamount which, according to the literature data, can be considered as...
關鍵字: offshore
出版: EDP Sciences
ISSN: 2100-014X
來源: DOAJ
System ID: 417216
196103
電子期刊
Patricea Elena Bertea, and Adriana Zait
E-commerce continues to develop as an important channel for consumer purchases. This explains the growing interest in determining the most important variables which affect online consumer behavior, especially perceived risk as a well-known behavioral deterrent. Previous studies have proved a negative influence of perceived risk on the intention to adopt e-commerce. However, depending on the type of product and the population investigated, results were often contradictory and this relationship wa...
關鍵字: pilot
出版: Faculty of Economics & Business, Zagreb, CROMAR (Croatian Union of Marketing Associations)
ISSN: 0353-4790
來源: DOAJ
System ID: 417215
196104
電子期刊
Carlos del Mónaco, and Gerard Haiek, and Samuel Narciso, and Miguel Galindo
El Niño Southern Oscillation (ENSO) has generated global coral massive bleaching. The aim of this work was to evaluate the massive bleaching of coral reefs in Puerto Cabello, Venezuela derived from ENSO 2010. We evaluated the bleaching of reefs at five localities both at three and five meter depth. The coral cover and densities of colonies were estimated. We recorded living coral cover, number and diameter of bleached and nonbleached colonies of each coral species. The colonies were classified a...
關鍵字: coral
出版: Vicerractoría Investigación
ISSN: 0034-7744
來源: DOAJ
System ID: 417214
196105
電子期刊
J. Nouet, and G. Nehrke
Marine biogenic carbonates formed by invertebrates (e.g. corals and mollusks) represent complex composites of one or more mineral phases and organic molecules. This complexity ranges from the macroscopic structures observed with the naked eye down to sub micrometric structures only revealed by micro analytical techniques. Understanding to what extent and how organisms can control the formation of these structures requires that the mineral and organic phases can be identified and their spatial di...
關鍵字: marine
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 417213
196106
電子期刊
M. J. Blanco, and J. Mezcua, and E. Gurria
A "local earthquake tomography" of a large area encompassing the South of Iberia, the sea of Alboran, the Gibraltar arc, and Northern Morrocco, has been performed using first arrival times recorded at various Spanish and Morroccan seismic networks. A total of 52 stations and 639 earthquakes provided over 6300 first P arrivals and 4400 S arrivals. Three features of interest appear in the results: i) a continuous low velocity structure which correlates with the Betics, the Gibraltar arc and the Ri...
關鍵字: sea
出版: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
ISSN: 1593-5213
來源: DOAJ
System ID: 417212
196107
電子期刊
J. L. Sarmiento, and M. Gloor, and N. Gruber, and C. Beaulieu, and A. R. Jacobson, and S. E. Mikaloff Fletcher, and S. Pacala, and K. Rodgers
We show here an updated estimate of the net land carbon sink (NLS) as a function of time from 1960 to 2007 calculated from the difference between fossil fuel emissions, the observed atmospheric growth rate, and the ocean uptake obtained by recent ocean model simulations forced with reanalysis wind stress and heat and water fluxes. Except for interannual variability, the net land carbon sink appears to have been relatively constant at a mean value of −0.27 Pg C yr<sup>−1</sup> between 1960 and 19...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 417211
196108
電子期刊
Ivo Rohling Ghizoni-Jr., and Tobias Saraiva Kunz, and Jorge José Cherem, and Renato Silveira Bérnils
The composition and geographic distribution of reptiles in Santa Catarina are little known, particularly in the open areas of its plateau (covered with ombrophylous steppe) and Atlantic littoral (coastal dunes with thin, low, and predominant herbaceous vegetation known as restinga). Aiming to contribute to the knowledge of reptiles that inhabit these areas, this paper presents sixteen records of previously unknown or uncommon species in Santa Catarina: Acanthochelys spixii, Anops kingii, Cnemido...
關鍵字: coastal
出版: Universidade Federal de Santa Catarina
ISSN: 0103-1643
來源: DOAJ
System ID: 417210
196109
電子期刊
Christian Püntener, and Jérémy Anquetin, and Jean-Paul Billon-Bruyat
Background During the Late Jurassic, several groups of eucryptodiran turtles inhabited the shallow epicontinental seas of Western Europe. Plesiochelyidae are an important part of this first radiation of crown-group turtles into coastal marine ecosystems. Fossils of Plesiochelyidae occur in many European localities, and are especially abundant in the Kimmeridgian layers of the Swiss Jura Mountains (Solothurn and Porrentruy). In the mid-19th century, the quarries of Solothurn (NW Switzerland) alre...
關鍵字: coastal
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 417209
196110
電子期刊
Muhammad Zainuddin Lubis, and Wenang Anurogo, and Hanah Khoirunnisa, and Sudra Irawan, and Oktavianto Gustin, and Arif Roziqin
Punggur sea has many habitats, object, and structured of seabed with hight tide and wave. Side scan sonar is an underwater acoustic instrument for identification of seabed. This research aims to classify types of seabed and measure seabed identification into the sea water with grain size (dB), location, altitude (m) and target using side scan sonar instrument. This research also uses one types of side scan sonar in one places with 3 line of collecting data to get more variant seabed. Side scan s...
關鍵字: sea
出版: UIR Press
ISSN: 2503-216X
來源: DOAJ
System ID: 417208
196111
電子期刊
J. van der Molen, and J. van der Molen, and P. Ruardij, and K. Mooney, and P. Kerrison, and N. E. O'Connor, and E. Gorman, and K. Timmermans, and S. Wright, and M. Kelly, and A. D. Hughes, and E. Capuzzo, and E. Capuzzo
There is increasing interest in macroalgae farming in European waters for a range of applications, including food, chemical extraction for biofuel production. This study uses a 3-D numerical model of hydrodynamics and biogeochemistry to investigate potential production and environmental effects of macroalgae farming in UK and Dutch coastal waters. The model included four experimental farms in different coastal settings in Strangford Lough (Northern Ireland), in Sound of Kerrera and Lynn of...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 417207
196112
電子期刊
C. Bottini, and E. Erba, and D. Tiraboschi, and H. C. Jenkyns, and S. Schouten, and J. S. Sinninghe Damsté
Several studies have been conducted to reconstruct temperature variations across the Aptian Stage, particularly during early Aptian Oceanic Anoxic Event (OAE) 1a. There is a general consensus that a major warming characterized OAE 1a, although some studies have provided evidence for transient "cold snaps" or cooler intervals during the event. The climatic conditions for the middle–late Aptian are less constrained, and a complete record through the Aptian is not available. Here we present a recon...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1814-9324
來源: DOAJ
System ID: 417206
196113
電子期刊
M. O. Andreae, and O. C. Acevedo, and A. Araùjo, and P. Artaxo, and C. G. G. Barbosa, and H. M. J. Barbosa, and J. Brito, and S. Carbone, and X. Chi, and B. B. L. Cintra, and N. F. da Silva, and N. L. Dias, and C. Q. Dias-Júnior, and F. Ditas, and R. Ditz, and A. F. L. Godoi, and R. H. M. Godoi, and M. Heimann, and T. Hoffmann, and J. Kesselmeier, and T. Könemann, and M. L. Krüger, and J. V. Lavric, and A. O. Manzi, and A. P. Lopes, and D. L. Martins, and E. F. Mikhailov, and D. Moran-Zuloaga, and B. W. Nelson, and A. C. Nölscher, and D. Santos Nogueira, and M. T. F. Piedade, and C. Pöhlker, and U. Pöschl, and C. A. Quesada, and L. V. Rizzo, and C.-U. Ro, and N. Ruckteschler, and L. D. A. Sá, and M. de Oliveira Sá, and C. B. Sales, and R. M. N. dos Santos, and J. Saturno, and J. Schöngart, and M. Sörgel, and C. M. de Souza, and R. A. F. de Souza, and H. Su, and N. Targhetta, and J. Tóta, and I. Trebs, and S. Trumbore, and A. van Eijck, and D. Walter, and Z. Wang, and B. Weber, and J. Williams, and J. Winderlich, and F. Wittmann, and S. Wolff, and A. M. Yáñez-Serrano
The Amazon Basin plays key roles in the carbon and water cycles, climate change, atmospheric chemistry, and biodiversity. It has already been changed significantly by human activities, and more pervasive change is expected to occur in the coming decades. It is therefore essential to establish long-term measurement sites that provide a baseline record of present-day climatic, biogeochemical, and atmospheric conditions and that will be operated over coming decades to monitor change in the Amazon r...
關鍵字: pilot
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 417205
196114
電子期刊
C. FROGLIA, and M.C. DEVAL
The alien hippolytid shrimp Lysmatakempi Chace, 1997 (= Hippolysmatadentata Kemp, 1914) , never recorded after its original description fromthe Eastern Indian Ocean, is reported for the first time in the easternMediterranean Sea (Gulf of Antalya), with remarks on its taxonomy.
關鍵字: shrimp
出版: Hellenic Centre for Marine Research
ISSN: 1108-393X
來源: DOAJ
System ID: 417204
196115
電子期刊
Rumjantsev Yevgeny
The ecological and faunistic pecularities of parasite fauna of fishes in large oligotrophic lakes of Karelia were studied. These lakes belong typologically to different classes. The presence of glacial species of parasites in Onega Lake and sea relict representatives in Ladoga lake is shown.
關鍵字: fish
出版: Petrozavodsk State University
ISSN: 2304-6465
來源: DOAJ
System ID: 417203
196116
電子期刊
Y.-W. Luo, and I. D. Lima, and D. M. Karl, and C. A. Deutsch, and S. C. Doney
There are a number of hypotheses concerning the environmental controls on marine nitrogen fixation (NF). Most of these hypotheses have not been assessed against direct measurements on the global scale. In this study, we use ~ 500 depth-integrated field measurements of NF covering the Pacific and Atlantic oceans to test whether the spatial variance of these measurements can be explained by the commonly hypothesized environmental controls, including measurement-based surface solar radiation, mixed...
關鍵字: marine
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 417202
196117
電子期刊
Sukenda ., and Sri Nuryati, and Isni Rahmatika Sari
<p>ABSTRACT</p><p><br />Infectious myonecrosis (IMN) disease is a major disease in Indonesia shrimp farming. The disease is caused by infectious myonecrosis virus (IMNV). Currently, treatment and drug has not been obtained to control the virus. This research was conducted to determine the effect of Phyllanthus niruri extract in white shrimp (Litopenaeus vannamei) against IMNV infection. Healthy shrimp was given P. niruri extract 20 mg/kg of feed for seven days and after that the shrimp was chall...
關鍵字: shrimp
出版: Asosiasi Sains Akuakultur Indonesia
ISSN: 1412-5269
來源: DOAJ
System ID: 417201
196118
電子期刊
R. RODRIGUEZ, and E. FOUNTOULAKI, and K. GRIGORAKIS, and M. ALEXIS, and R. FLOS
The aim of this study was to investigate the potential effects of the harvesting season and fish size on the final quality of cage farmed gilthead sea bream (Sparus aurata). Morphometric analysis, fat stores estimation, fillet composition analysis, fillet fatty acids profile determination and sensory analysis were carried out on a commercially-sized cage farmed gilthead sea bream (Sparus aurata L.) population in April, June, July and November. Both season and size had a significant effect in mo...
關鍵字: sea
出版: Hellenic Centre for Marine Research
ISSN: 1108-393X
來源: DOAJ
System ID: 417200
196119
電子期刊
Beena Antony, and Elizabeth Varkey Cherian, and Rekha Boloor, and K Varadraj Shenoy
Burkholderia cepacia complex (BCC) is a significant opportunistic pathogen in hospitalized and immunocompromised patients, particularly in cystic fibrosis. It is widely distributed in natural habitats such as soil and water and frequently encountered in nosocomial outbreaks due to contaminated disinfectants and medical devices. However reports on outbreaks due to this organism are lacking from the Indian subcontinent. We report here a sporadic outbreak due to BCC which occurred in the pediatric ...
關鍵字: coastal
出版: Wolters Kluwer Medknow Publications
ISSN: 0377-4929
來源: DOAJ
System ID: 417199
196120
電子期刊
Malu Christine Barbosa Feitosa, and Ranyse Barbosa Querino, and Neusa Hamada
ABSTRACT Anagrus amazonensis Triapitsyn, Querino & Feitosa (Hymenoptera, Mymaridae) is a parasitoid that uses aquatic insect eggs as a host for the development of its immature stages. The objectives of this study are to record the interaction between A. amazonensis and its hosts and the aquatic plants used by these hosts to lay their eggs. Field work was conducted in floodplain lakes and upland (terra firme) streams, in four municipalities in Amazonas State, Brazil, where aquatic plants were sca...
關鍵字: aquatic
出版: Elsevier
ISSN: 0085-5626
來源: DOAJ
System ID: 417198
196121
電子期刊
Ong Muk Chen
This paper gives a discussion on the Computational Fluid Dynamics (CFD) applications in offshore engineering. Accurate hydrodynamic quantities are essential for engineering design. Offshore structures are generally subject to high Reynolds number flows. These high Reynolds number flow conditions (Re > 106) are difficult and expensive to achieve in an experimental setup. Therefore, it is attractive to use CFD to provide the essential hydrodynamic quantities for practical design. Verification and ...
關鍵字: offshore
出版: EDP Sciences
ISSN: 2100-014X
來源: DOAJ
System ID: 417197
196122
電子期刊
Takosoglu Jakub, and Laski Paweł, and Blasiak Slawomir, and Bracha Gabriel, and Pietrala Dawid, and Zwierzchowski Jaroslaw, and Nowakowski Lukas
Pneumatic directional valves are used in most industrial pneumatic systems. Most of them are two-stage valves controlled by a pilot valve. Pilot valves are often chosen randomly. Experimental studies in order to determine the flow-rate characteristics and parameters of pilot valves were not conducted. The paper presents experimental research of two piezo pilot valves.
關鍵字: pilot
出版: EDP Sciences
ISSN: 2100-014X
來源: DOAJ
System ID: 417196
196123
電子期刊
O. M. Volkova, and V. V. Belyaev, and S. P. Prishlyak, and O. O. Parhomenko, and V. A. Karapysh
Peculiarities of forming radioactive contamination of higher aquatic plants from Kyiv reservoir in 2010 was studied. For the first time the levels of content 137Cs and 90Sr in plants from different parts of reservoir was ana-lyzed. Content of 137Cs in plants was registered on the level from 5 to 588 Bq/kg, 90Sr – from 0,5 to 50 Bq/kg. Levels of radioactive contamination of higher aquatic plants depended on peculiarities of radionuclides migra-tion in water area of the reservoir with water masses...
關鍵字: aquatic
出版: Institute for Nuclear Research, National Academy of Sciences of Ukraine
ISSN: 1818-331X
來源: DOAJ
System ID: 417195
196124
電子期刊
Gregory Killough, and Danielle Battram, and Joanne Kurtz, and Gillian Mandich, and Laura Francis, and Meizi He
OBJECTIVES: "Pause-2-Play" is an obesity prevention program targeting screen-related sedentary behaviours and increasing physical activity among elementary school students. The program consisted of a Behavioural Modification Curriculum and a Health Promoting Afterschool Program. This pilot study reports program feasibility, practicability, and impact. METHODS: the 12-week pilot program was implemented with 32 grade five and six students. Program feasibility and practicability were assessed using...
關鍵字: pilot
出版: Instituto Materno Infantil de Pernambuco
ISSN: 1519-3829
來源: DOAJ
System ID: 417194
196125
電子期刊
Juliana Sheila de Araújo, and Maria de Fátima Pereira de Sá
Este trabalho teve como objetivo analisar, sob a ótica do desenvolvimento sustentável, características socioeconômicas do desenvolvimento da piscicultura no baixo rio São Francisco alagoano. Foram entrevistados piscicultores ativos e inativos da região, entre março e julho de 2005. Os resultados indicaram, principalmente, que o nível de renda pode ser determinante para o desenvolvimento de uma piscicultura comercial sustentável, com parte dos pequenos produtores dependendo de subsídio governamen...
關鍵字: fish
出版: Associação Nacional de Pós-Graduação e Pesquisa em Ambiente e Sociedade (ANPPAS)
ISSN: 1414-753X
來源: DOAJ
System ID: 417193
196126
電子期刊
Ricardo Martins Campos, and Ricardo De Camargo, and Joseph Harari
Este trabalho tem como objetivo identificar a influência atmosférica em escala sinótica sobre o oceano, para eventos extremos de maré meteorológica na costa sudeste brasileira. Para isso foram utilizados dados de elevação do nível do mar do Porto de Santos-SP, campos de vento e pressão em superfície das reanálises do modelo do NCEP abrangendo o Atlântico Sul, no período de 1951 a 1990. Foi possível identificar a variabilidade sazonal e o padrão de evolução dos sistemas atmosféricos associados ao...
關鍵字: sea
出版: Sociedade Brasileira de Meteorologia
ISSN: 0102-7786
來源: DOAJ
System ID: 417192
196127
電子期刊
Samia Challal, and Abdeslem Lyaghfouri
We consider a flow of fresh and salt groundwater in a two-dimensional heterogeneous horizontal aquifer. Assuming the flow governed by a nonlinear Darcy law and the permeability depending only on the vertical coordinate, we show the existence of a unique monotone solution that increases (resp. decreases) with respect to the salt (resp. fresh) water discharge. For this solution we prove that the free boundary is represented by the graph $x=g(z)$ of a continuous function. Finally we prove a limit b...
關鍵字: coastal
出版: Texas State University
ISSN: 1072-6691
來源: DOAJ
System ID: 417191
196128
電子期刊
Diaz Gaspar, and Coelho Fernando
We disclose herein a synthetic approach for the preparation of an unusual carbon skeleton, which was found in nor-sesquiterpenes isolated from marine corals. The main structural feature of this skeleton is the presence of two contiguous quaternary centers, one of them bears a spiro gamma-butyrolactone moiety. One of the quaternary centers was prepared with moderate stereoselectivity by the conjugate addition of lithium dimethylcuprate to 2-methylcyclohexenone, followed by the trapping of the int...
關鍵字: marine
出版: Sociedade Brasileira de Química
ISSN: 0103-5053
來源: DOAJ
System ID: 417190
196129
電子期刊
M. L. Fidalgo, and S. Casimiro
Textile plants consume large volumes of water and produce a great amount of wastewaters, which can be important sources of toxic discharges in receiving environments. The objective of this study was to evaluate the acute toxicity of textile effluents on the freshwater shrimp <i>A. desmarestii</i>. A whole effluent toxicity test procedure was used to determine the aggregate toxicity of three samples taken before and after wastewater treatment in a textile mill. The following LC<sub>50</sub> ...
關鍵字: shrimp
出版: Copernicus Publications
ISSN: 1399-1183
來源: DOAJ
System ID: 417189
196130
電子期刊
C.B. Dias, and L.G. Wood, and M.L. Garg
關鍵字: fish
出版: Elsevier
ISSN: 2352-3859
來源: DOAJ
System ID: 417188
196131
電子期刊
R. Morrow, and A. Carret, and F. Birol, and F. Nino, and G. Valladeau, and F. Boy, and C. Bachelier, and B. Zakardjian
Technological advances in the recent satellite altimeter missions of Jason-2, SARAL/AltiKa and CryoSat-2 have improved their signal-to-noise ratio, allowing us to observe finer-scale ocean processes with along-track data. Here, we analyse the noise levels and observable ocean scales in the northwestern Mediterranean Sea, using spectral analyses of along-track sea surface height from the three missions. Jason-2 has a higher mean noise level with strong seasonal variations, with higher noise in wi...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1812-0784
來源: DOAJ
System ID: 417187
196132
電子期刊
Nadine Havemann, and Martin M. Gossner, and Lars Hendrich, and Jèrôme Morinière, and Rolf Niedringhaus, and Peter Schäfer, and Michael J. Raupach
With about 5,000 species worldwide, the Heteroptera or true bugs are the most diverse taxon among the hemimetabolous insects in aquatic and semi-aquatic ecosystems. Species may be found in almost every freshwater environment and have very specific habitat requirements, making them excellent bioindicator organisms for water quality. However, a correct determination by morphology is challenging in many species groups due to high morphological variability and polymorphisms within, but low variabili...
關鍵字: aquatic
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 417186
196133
電子期刊
May Christine Modenesi, and Moysés Gonsalez Tessler, and Olga Cruz, and Armando Marcio Coimbra
This paper deals with the sedimentation and erosion dynamics of a sand-ridge on the Maçaguaçu River mouth on the São Paulo coastal plain, north of Caraguatatuba Bay. Sedimentological, climatic and hydrodynamic data were analysed from an integrative point of view, considering relationships between continental and marine antagonic forces. Even if incomplete these preliminary observation show that erosion only occurs when more intense rains and higher tidal cycles coincide and that even the intense...
關鍵字: marine
出版: Universidade de São Paulo
ISSN: 1679-8759
來源: DOAJ
System ID: 417185
196134
電子期刊
SUZANA G. LELES, and JEAN L. VALENTIN, and GISELA M. FIGUEIREDO
ABSTRACT Planktonic models represent a powerful tool for creating hypotheses and making predictions about the functioning of marine ecosystems. Their complexity varies according to the number of state variables and the choice of functional forms. We evaluated plankton models during the last 15 years (n =145) with the aims of understanding why they differ in complexity, evaluating model robustness, and describing studies of plankton modelling around the globe. We classified models into four group...
關鍵字: marine
出版: Academia Brasileira de Ciências
ISSN: 0001-3765
來源: DOAJ
System ID: 417184
196135
電子期刊
Armenta López, G.E., and Sumaya Martínez, M.T., and Spanopoulos Hernández, M., and Balois Morales, R., and Sánchez Herrera, M., and Jiménez Ruíz, E.
Oxidative stress is a type of damage caused by different kinds of pollutants such as xenobiotics, or by a deficiency in the body’s own antioxidant mechanisms. It occurs because of a disturbance in the balance between the formation of free radicals and cellular antioxidants, often resulting in cell damage and physiological disorders. Among the most common and studied impacts are: lipid oxidation, protein, and nucleic acid damage. As a strategy to offset or minimize such damage, including sources ...
關鍵字: fish
出版: Universidad Autónoma de Nayarit
ISSN: 2007-3380
來源: DOAJ
System ID: 417183
196136
電子期刊
Maria Stela Maioli Castilho, and Marlene Sofia Arcifa
Secondary production, density and biomass fluctuations, and some reproductive aspects of the rotifer Brachionus plicatilis were studied weekly for two years in a Brazilian coastal lagoon. Food (and secondarily temperature) seemed to be the main factor involved in the summer increments. In the first summer, a mass mortality of fish caused changes in the phytoplankton, which switched from the dominance of Cyanophyceae to Chlorophyceae and other groups. For two months, production, density and bioma...
關鍵字: coastal
出版: Vicerractoría Investigación
ISSN: 0034-7744
來源: DOAJ
System ID: 417182
196137
電子期刊
PREHADI
關鍵字: fishing
出版: MBI & UNS Solo
ISSN: 1412-033X
來源: DOAJ
System ID: 417181
196138
電子期刊
N. Pinardi, and G. Coppini
No abstract available.
關鍵字: oceanography
出版: Copernicus Publications
ISSN: 1812-0784
來源: DOAJ
System ID: 417180
196139
電子期刊
Rajan Vinod, and Kamath Vijay, and Shetty Ajoy, and Rajasekaran S
<b>Background</b> : Pedicle screw instrumentation of the deformed cervical and thoracic spine is challenging to even the most experienced surgeon and associated with increased incidence of screw misplacement. Iso-C3D based navigation has been reported to improve the accuracy of pedicle screw placement, however, there are very few studies assessing its efficacy in the presence of deformity. We conducted a study to evaluate the accuracy of Iso-C3D based navigation in pedicle screw fixation in the ...
關鍵字: navigation
出版: Wolters Kluwer Medknow Publications
ISSN: 0019-5413
來源: DOAJ
System ID: 417179
196140
電子期刊
Keshyiu Nakatani, and Flávio Lima Nascimento
A distribuição espacial e temporal de ovos e larvas de peixes no alto rio Ivinhema foi analisada objetivando determinar as áreas de desova e suas relações com fatores ambientais. Foram realizadas coletas mensais de setembro de 1994 a fevereiro de1995 em quatro pontos, no rio Ivinhema e em três tributários. Foi utilizada uma rede de plâncton cônico-cilindrica com malha de 0,5 mm, com fluxômetro, e as amostras fixadas em formol 4%. A abundância foi padronizada em 10 m<sup><small>3</small></sup> de...
關鍵字: fish
出版: Eduem - Editora da Universidade Estadual de Maringá
ISSN: 1679-9283
來源: DOAJ
System ID: 417178
196141
電子期刊
Ivlev M. L. , and Kuznetsov I. V. , and Semyonov D. N. , and Chirtsov A. V.
The assessment of the most informative methods of diagnostics of mechanisms with electric drive has been given; their realization in a measuring complex on the basis of the virtual device has been considered. The comparative analysis of vibration methods for the analysis of current spectra and the thermal method of nondestructive testing has been carried out. It has been stated that methods of vibration diagnostics are more sensitive to defects in the mechanical part of the electric drive (deter...
關鍵字: marine
出版: Murmansk State Technical University
ISSN: 1560-9278
來源: DOAJ
System ID: 417177
196142
電子期刊
Christian O Ramirez-Serrano Torres, and Edgardo Román-Guzmán, and Carlos-Manuel Ortiz-Mendoza
Background: We aimed to explore the frequency of occult cancer in patients with deep-vein thrombosis (DVT) at a general hospital in Mexico City. Materials and Methods: From March 2012 to February 2015, all patients with primary DVT of lower extremities attended in the emergency department of our hospital were studied. Initially, all patients were evaluated with clinical history, physical examination, basic laboratories, abdominal ultrasound, chest X-ray, and duplex venous ultrasonography. In a c...
關鍵字: pilot
出版: Wolters Kluwer Medknow Publications
ISSN: 1735-1995
來源: DOAJ
System ID: 417176
196143
電子期刊
Kovljenić Mina, and Savić Mirko
Households buy food products, that vary from cheap to expensive, from healthy to unhealthy, from basic to value-added. Beside the nutritional, economic factors have a major and often decisive significance on a households’ ability to afford certain food products. Income, price and housing costs have a significant influence on the purchase of food products. Aim of this paper is to investigate factors influencing the households’ ability to afford meat or fish in a meal every other day (or a vegetar...
關鍵字: fish
出版: Naučno društvo agrarnih ekonomista Balkana, Beograd; Institut za ekonomiku poljoprivrede, Beograd i Akademija ekonomskih nauka, Bukurešt
ISSN: 0352-3462
來源: DOAJ
System ID: 417175
196144
電子期刊
Antonio Sánchez Aguilar
La Industria de Construcción Naval es una actividad de gran tradición en nuestro país. A través de todo el litoral español ha existido, desde tiempos muy remotos, una gran vocación por la con strucción de barcos. Este apego a la Construcción Naval, que siempre ha sido una constante, ha dado como resultado un gran número de hombres altamente especializados, sin contar con esa legión de carpinteros de rivera, auténticos artesanos que en los varaderos se dedican a construir barcos de madera. Al pas...
關鍵字: naval
出版: Editorial Universidad de Sevilla
ISSN: 2340-2776
來源: DOAJ
System ID: 417174
196145
電子期刊
Arturo Gutiérrez Fernández , and Gregorio Pedro Gil Ortiz , and Manuel Ángel Cano Vélez
El sector naval viene siendo considerado como una de las actividades estratégicas de los países a la vez que motor de la industrialización. Su carácter estratégico está íntimamente relacionado con la defensa, de ahí, que los países hayan tratado de proteger siempre esta industria, sabiendo que, en 1986 los países comunitarios presentaban, tasas de importación y exportación en el sector del 11,7 y 19,4 por ciento, de manera que contaban con una industria que cubría las necesidades de esta activid...
關鍵字: naval
出版: Editorial Universidad de Sevilla
ISSN: 2340-2776
來源: DOAJ
System ID: 417173
196146
電子期刊
Vandana Jain, and Santosh Kumar, and Naval K Vikram, and Mani Kalaivani, and Surya Prakash Bhatt, and Rajni Sharma, and Kumar Kabra Sushil
Background & objectives: Cystic fibrosis (CF) is a life-limiting genetic condition resulting in chronic respiratory infections, pancreatic enzyme insufficiency and associated complications. This pilot study was undertaken to assess the glucose tolerance and insulin secretion and sensitivity among Indian children with CF. Methods: Children with CF under regular follow up at the Paediatric Pulmonology Clinic of a tertiary care hospital in New Delhi, India, were enrolled. Children who had a history...
關鍵字: pilot
出版: Wolters Kluwer Medknow Publications
ISSN: 0971-5916
來源: DOAJ
System ID: 417172
196147
電子期刊
Sung-Ho Hong, and Seung-Hwan Ju
We perform an experiment on lacquer formation with simple test device. The anti-lacquer is one of important issues to increase durability, and to improve performance in the engines because the lacquer formation cause sticking of fuel injection pump, scuffing of cylinder liners, and increase of lubricant oil consumption in the marine diesel engines. We suggest this simple test in order to save enormous experimental cost in marine diesel engines, and in order to have ease in performing the various...
關鍵字: marine
出版: Elsevier
ISSN: 2092-6782
來源: DOAJ
System ID: 417171
196148
電子期刊
S. Chen, and J. Beardall, and K. Gao
<i>Phaeocystis globosa</i>, a red tide alga, often forms blooms in or adjacent to coastal waters and experiences changes in pH and seawater carbonate chemistry caused by either diel/periodic fluctuation in biological activity, human activity or, in the longer term, ocean acidification due to atmospheric CO<sub>2</sub> rise. We examined the photosynthetic physiology of this species while growing it under different pH levels induced by CO<sub>2</sub> enrichment and investigated its acclimation to ...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 417170
196149
電子期刊
Mateus Corrêa Silveira, and Luiz Fernando Cuozzo Lemos, and Gabriel Ivan Pranke, and Carlos Bolli Mota
DOI: http://dx.doi.org/10.5007/1980-0037.2015v17n1p104   The visual system is fundamental for the control of gait stability. Visual deprivation or impairment can deteriorate walking stability in adults; however, in daily life, adults are exposed to different light intensities rather than visual deprivation. The objective of this study was to investigate gait stability in young adults exposed to different visual conditions. Ten adults without visual problems participated in the study. The subje...
關鍵字: pilot
出版: Universidade Federal de Santa Catarina
ISSN: 1415-8426
來源: DOAJ
System ID: 417169
196150
電子期刊
Jessica Cegielski, and Matthew S. Brook, and Jonathan I. Quinlan, and Daniel J. Wilkinson, and Kenneth Smith, and Philip J. Atherton, and Bethan E. Phillips
Background: Developing alternative exercise programmes that can alleviate certain barriers to exercise such as psychological, environmental or socio-economical barriers, but provide similar physiological benefits e.g. increases in muscle mass and strength, is of grave importance. This pilot study aimed to assess the efficacy of an unsupervised, 4-week, whole-body home-based exercise training (HBET) programme, incorporated into daily living activities, on skeletal muscle mass, power and strength....
關鍵字: pilot
出版: F1000 Research Ltd
ISSN: 2046-1402
來源: DOAJ
System ID: 417168