Erik Kjærner-Semb, and Fernando Ayllon, and Lene Kleppe, and Elin Sørhus, and Kai Skaftnesmo, and Tomasz Furmanek, and Frida T. Segafredo, and Anders Thorsen, and Per Gunnar Fjelldal, and Tom Hansen, and Geir Lasse Taranger, and Eva Andersson, and Rüdiger W. Schulz, and Anna Wargelius, and Rolf B. Edvardsen

Abstract Vgll3 is linked to age at maturity in Atlantic salmon (Salmo salar). However, the molecular mechanisms involving Vgll3 in controlling timing of puberty as well as relevant tissue and cell types are currently unknown. Vgll3 and the associated Hippo pathway has been linked to reduced proliferation activity in different tissues. Analysis of gene expression reveals for the first time that vgll3 and several members of the Hippo pathway were down-regulated in salmon testis during onset of pub...

John A. Gittings, and Dionysios E. Raitsos, and George Krokos, and Ibrahim Hoteit

Abstract In the tropics, thermal stratification (during warm conditions) may contribute to a shallowing of the mixed layer above the nutricline and a reduction in the transfer of nutrients to the surface lit-layer, ultimately limiting phytoplankton growth. Using remotely sensed observations and modelled datasets, we study such linkages in the northern Red Sea (NRS) - a typical tropical marine ecosystem. We assess the interannual variability (1998–2015) of both phytoplankton biomass and phenologi...

Masatoshi Hotta, and Ryogo Minamimoto, and Kazuhiko Yamada, and Kyoko Nohara, and Daisuke Soma, and Kazuhiko Nakajima, and Jun Toyohara, and Kei Takase

Abstract Background 4′-[Methyl-11C] thiothymidine (4DST) has been introduced as a new cell proliferation imaging PET tracer that incorporates into DNA directly. The aim of this prospective study was to evaluate the efficacy of 4DST PET/CT for predicting responses to neoadjuvant therapy in patients with esophageal cancer comparing with FDG PET/CT. Methods Twenty-six patients who had pre- and post-therapeutic 4DST and FDG PET/CT and underwent esophagectomy following neoadjuvant therapy were used f...

Johnny D. Farah, and Natalie Baddour, and Edward D. Lemaire

Abstract Background Functionality and versatility of microprocessor-controlled stance-control knee-ankle-foot orthoses (M-SCKAFO) are dictated by their embedded control systems. Proper gait phase recognition (GPR) is required to enable these devices to provide sufficient knee-control at the appropriate time, thereby reducing the incidence of knee-collapse and fall events. Ideally, the M-SCKAFO sensor system would be local to the thigh and knee, to facilitate innovative orthosis designs that allo...

Michael H. Hooper, and Anitra Carr, and Paul E. Marik

Kasper Janssen, and Helmut Saatkamp, and Hans Komen

Abstract Background Profitability of breeding programs is a key determinant in the adoption of selective breeding, and can be evaluated using cost-benefit analysis. There are many options to design breeding programs, with or without a multiplier tier. Our objectives were to evaluate different breeding program designs for aquaculture and to optimize the number of selection candidates for these programs. Methods The baseline was based on an existing breeding program for gilthead seabream, where im...

Daniele Volpe, and Elisa Pelosin, and Leila Bakdounes, and Stefano Masiero, and Giannettore Bertagnoni, and Chiara Sorbera, and Maria Giulia Giantin

Abstract Background Proprioceptive deficits have been largely documented in PD patients, thus external sensory signals (peripheral sensory feedback) are often used to compensate the abnormalities of proprioceptive integration. This pilot study aims to evaluate the feasibility and the effectiveness of a rehabilitation-training program, combined with the use of a sensory-motor orthotic in improving balance in a small sample of PD patients. Methods Twenty PD patients were randomly allocated into tw...

Robert Major, and Andrew Jeffs

Abstract New Zealand scampi (Metanephrops challengeri) is a commercially important deep-water lobster species that is caught by bottom trawling on areas of muddy seafloor on the continental shelf below 300 m. Efforts are being made to develop lower impact potting methods to harvest scampi, however, they can only be caught when out of their burrows and searching for food. This emergent food searching behaviour appears to be associated with periods of higher tidal flow. Such water flow will increa...

Sunarlan Sunarlan, and Kusnadi Kusnadi

The socio-economic condition of the traditional fishermen in Blimbingsari Village is considered to be less than the optimum. This problem has happened due to the diminishing revenue from fishing activities. The opportunity to work in the off-fishing sectors available are also limited, thus this creates a problem for the fishermen when it comes to earning an additional income. The objective of this article is to explore the alternative economic resources’ potential, with the aim of increasing the ...

Rukin Rukin

This research is based on the phenomenon of low construction in coastal village areas, primarily in relation to the economic development sector. This study was conducted in order to determine the low economic level of coastal rural communities and its abundant natural resources (SDA). The government has already issued a public policy related to economic empowerment and coastal zone management. However, the coastal village community’s economy remains very low. The qualitative and phenomenological...

Silvania Avelar, and Tessa S. van der Voort, and Timothy I. Eglinton

Abstract Background Determining national carbon stocks is essential in the framework of ongoing climate change mitigation actions. Presently, assessment of carbon stocks in the context of greenhouse gas (GHG)-reporting on a nation-by-nation basis focuses on the terrestrial realm, i.e., carbon held in living plant biomass and soils, and on potential changes in these stocks in response to anthropogenic activities. However, while the ocean and underlying sediments store substantial quantities of ca...

Eliane Blumer, and Jasmin Hügi, and René Schneider

The last decade transformed faceted navigation from a “nice-to-have” into a “must-have functionality” for all online web services that contain a search function. The movement has been started by commercial websites, such as online clothing stores, with the purpose of facilitating access to the products. Now, faceted search seems to be more and more well-known within the community of information institutions and their digital services, too, as for example the online catalogue of the Library of Co...

Ratiu Mariana, and Suteu Corina, and Oarga Ioan-Florin

This paper is the result of a study on the current situation in Romania regarding education and training on the occupational safety and health in the offshore industry. This study was conducted within a European project, which, among other things, has as intellectual outputs, identifying the main requirements related to learning needs and competencies and identifying the similar safety and health training courses for offshore industry at European level. Romania has transposed the European Union ...

Kagan Kircaburun, and Mark D. Griffiths, and Joël Billieux

Internet gaming disorder (IGD) has been related to a wide range of detrimental psychological and health consequences. The purpose of the present pilot study was to test the direct and indirect relationships between IGD and emotional trauma, body image dissatisfaction, social anxiety, loneliness, depression, and self-esteem. A total of 242 online gamers completed a survey comprising a comprehensive battery of psychometric self-report scales concerning aforementioned variables. Results indicated t...

Tatyana Lapina, and Khaled A. Selim, and Karl Forchhammer, and Elena Ermilova

Abstract PII superfamily consists of widespread signal transduction proteins found in all domains of life. Whereas they are well-studied in Archaea, Bacteria and Chloroplastida, no PII homolog has been analyzed in Rhodophyta (red algae), where PII is encoded by a chloroplast localized glnB gene. Here, we characterized relevant sensory properties of PII from the red alga Porphyra purpurea (PpPII) in comparison to PII proteins from different phyla of oxygenic phototrophs (cyanobacteria, Chlamydomo...

Nyssa J. Silbiger, and Cascade J. B. Sorte

Abstract Ocean acidification (OA) projections are primarily based on open ocean environments, despite the ecological importance of coastal systems in which carbonate dynamics are fundamentally different. Using temperate tide pools as a natural laboratory, we quantified the relative contribution of community composition, ecosystem metabolism, and physical attributes to spatiotemporal variability in carbonate chemistry. We found that biological processes were the primary drivers of local pH condit...

Moninets S. Yu. , and Bazhenova A. I.

The development of the Arctic region is now especially relevant. The Arctic shelf is attractive due to hydrocarbon fields, and the Northern Sea Route remains the most important transport route linking Asia and Europe. However, the severe arctic climate does not contribute to the intensive development of the territory, and even carries a certain danger. This problem is especially acute in the eastern sector of the Arctic and even in the Far East as regions with underdeveloped infrastructure. Acci...

Å. B. Tornberg, and P. Håkansson, and I. Svensson, and P. Wollmer

Abstract Background Power output and force development during exercise are thought to be important indices of performance in elite athletes. The aim of this preliminary study was to determine the forces applied at the footrest during ergometric kayaking in individual kayakers at different competitive levels. Methods Three elite female kayakers participated voluntarily in the study. Oxygen consumption (VO2) and mean power were measured during paddling at three different work levels (15 W below on...

Fatima Al-Khelaifi, and Ilhame Diboun, and Francesco Donati, and Francesco Botrè, and Mohammed Alsayrafi, and Costas Georgakopoulos, and Karsten Suhre, and Noha A. Yousri, and Mohamed A. Elrayess

Abstract Background The outstanding performance of an elite athlete might be associated with changes in their blood metabolic profile. The aims of this study were to compare the blood metabolic profiles between moderate- and high-power and endurance elite athletes and to identify the potential metabolic pathways underlying these differences. Methods Metabolic profiling of serum samples from 191 elite athletes from different sports disciplines (121 high- and 70 moderate-endurance athletes, includ...

Hélvia W. C. Araújo, and Rosileide F. S. Andrade, and Dayana Montero-Rodríguez, and Daylin Rubio-Ribeaux, and Carlos A. Alves da Silva, and Galba M. Campos-Takaki

Abstract Background Biosurfactants are surface-active agents produced by microorganisms that have higher efficiency and stability, lower toxicity and higher biocompatibility and biodegradability than chemical surfactants. Despite its properties and potential application in a wide range of environmental and industrial processes, biosurfactants are still not cost-competitive when compared to their synthetic counterparts. Cost effective technologies and renewable raw substrates as agro-industrial a...

Catherine M. Sackley, and Christina H. Smith, and Caroline E. Rick, and Marian C. Brady, and Natalie Ives, and Smitaa Patel, and Rebecca Woolley, and Francis Dowling, and Ramilla Patel, and Helen Roberts, and Sue Jowett, and Keith Wheatley, and Debbie Kelly, and Gina Sands, and Carl E. Clarke, and on behalf of the PD COMM Pilot Collaborative Group

Abstract Background Speech-related problems are common in Parkinson’s disease (PD), but there is little evidence for the effectiveness of standard speech and language therapy (SLT) or Lee Silverman Voice Treatment (LSVT LOUD®). Methods The PD COMM pilot was a three-arm, assessor-blinded, randomised controlled trial (RCT) of LSVT LOUD®, SLT and no intervention (1:1:1 ratio) to assess the feasibility and to inform the design of a full-scale RCT. Non-demented patients with idiopathic PD and speech ...

A. Janin, and M. Rodriguez, and D. Sakellariou, and V. Lykousis, and C. Gorini

<p>The North Anatolian Fault in the northern Aegean Sea triggers frequent earthquakes of magnitudes up to <span class="inline-formula"><i>M</i>_w∼7</span>. This seismicity can be a source of modest tsunamis for the surrounding coastlines with less than <span class="inline-formula">50</span>&thinsp;<span class="inline-formula">cm</span> height according to numerical modelling and analysis of tsunami deposits. However, other tsunami sources may be involved, like submarine landslides. We ...

Haukur T. Gudmundsson, and Karen E. Hansen, and Bjarni V. Halldorsson, and Bjorn R. Ludviksson, and Bjorn Gudbjornsson

Abstract Background Although osteoporosis is an easily diagnosed and treatable condition, many individuals remain untreated. Clinical decision support systems might increase appropriate treatment of osteoporosis. We designed the Osteoporosis Advisor (OPAD), a computerized tool to support physicians managing osteoporosis at the point-of-care. The present study compares the treatment recommendations provided by OPAD, an expert physician and the National Osteoporosis Guideline Group (NOGG). Methods...

Rignell-Hydbom Anna, and Rylander Lars, and Axmon Anna

<p>Abstract</p> <p>Cohorts comprising fishermen's families on the east coast of Sweden have been found to have a high consumption of contaminated fish as well as high body burdens of persistent organochlorine pollutants (POPs). Their west coast correspondents are socio-economically similar, but with considerably lower POP exposure since the fish caught on the west coast is far less contaminated. The rationale for this was that the cohorts residing on the east coast of Sweden have been found to h...

JOSÉ M PULGAR, and FRANCISCO BOZINOVIC, and F. PATRICIO OJEDA

Determining habitat conditions that generate individual physiological variability represents key basic knowledge to understand the direction of animal's responses to habitat change. The coastal fish Scartichthys viridis inhabits low intertidal pools along the Chilean coast. Because seawater in the low intertidal is renewed during every tidal cycle, this zone is characterized by a low thermal variation and abundant food within and between localities. We evaluated whether seawater thermal conditio...

Sabina Cevoli, and Giulia Giannini, and Valentina Favoni, and Rossana Terlizzi, and Elisa Sancisi, and Marianna Nicodemo, and Stefano Zanigni, and Maria Letizia Bacchi Reggiani, and Giulia Pierangeli, and Pietro Cortelli

Abstract Background Drug withdrawal still remains the key element in the treatment of Medication Overuse Headache (MOH), but there is no consensus about the withdrawal procedure. Still debated is the role of the steroid therapy. The aim of this study was to evaluate the effectiveness of methylprednisolone or paracetamol in the treatment of withdrawal headache in MOH. Methods We performed a pilot, randomized, single-blinded, placebo controlled trial. MOH patients, unresponsive to a 3 months proph...

Ping Dai, and Sheng Luan, and Xia Lu, and Kun Luo, and Xianhong Meng, and Baoxiang Cao, and Jie Kong

Abstract Background Residual feed intake (RFI) was investigated as a measure of feed efficiency in a breeding population of Litopenaeus vannamei. Shrimp from 34 families were housed individually and feed efficiency and growth traits were recorded during two successive growth periods. The objectives of this study were (1) to estimate the heritability of RFI and related traits, including feed efficiency ratio (FER), average daily gain (ADG) and daily feed intake (DFI), (2) to determine the relatio...

Tao Su, and Qizhuang Jin, and Zhongyuan Liu

Abstract Background Critically ill patients requiring renal replacement therapy (RRT) are at risk of disease-related bleeding. Systemic heparinization should be avoided. AN69ST, a polyethyleneimine-treated polyacrylonitrile (AN69) membrane hemofilter, can be primed with heparin, improving its local anticoagulative activity. Prolonged intermittent RRT (PI-RRT) is of shorter duration and cheaper, considered as an alternative to continuous RRT. This study was performed to compare the success rate o...

Georgina Jones

Abstract This editorial introduces a new special series on the pilot and feasibility testing of patient-reported outcome measures (PROMs) in the on-line open access journal Pilot and Feasibility Studies. Pilot and feasibility studies are typically implemented to address issues of uncertainty before undertaking a larger definitive study such as a randomised controlled trial or large scale survey. This editorial considers the role that such pilot and feasibility testing plays in relation to the de...

Hossein Hamidi, and Erfan Mohammadian, and Amin Sharifi Haddad, and Roozbeh Rafati, and Amin Azdarpour, and Panteha Ghahri, and Adi Putra Pradana, and Bastian Andoni, and Chingis Akhmetov

Abstract The adverse impacts of CO2 emission on the global warming highlight the importance of carbon capture and storage technology and geological storage of CO2 under solubility trapping mechanisms. Enhancing the solubility of CO2 in formation water has always been the focus of research in the area of CO2 sequestration. Ultrasound techniques are one of the environmentally friendly methods that use high-intensity acoustic waves to improve gas solubility in liquids. Ultrasonic waves can alter th...

Richard L. Pyle, and Raymond Boland, and Holly Bolick, and Brian W. Bowen, and Christina J. Bradley, and Corinne Kane, and Randall K. Kosaki, and Ross Langston, and Ken Longenecker, and Anthony Montgomery, and Frank A. Parrish, and Brian N. Popp, and John Rooney, and Celia M. Smith, and Daniel Wagner, and Heather L. Spalding

Although the existence of coral-reef habitats at depths to 165 m in tropical regions has been known for decades, the richness, diversity, and ecological importance of mesophotic coral ecosystems (MCEs) has only recently become widely acknowledged. During an interdisciplinary effort spanning more than two decades, we characterized the most expansive MCEs ever recorded, with vast macroalgal communities and areas of 100% coral cover between depths of 50–90 m extending for tens of km2 in the Hawaiia...

A. Thibault de Chanvalon, and E. Metzger, and A. Mouret, and F. Cesbron, and J. Knoery, and E. Rozuel, and P. Launeau, and M. P. Nardelli, and F. J. Jorissen, and E. Geslin

We present a new rapid and accurate protocol to simultaneously sample benthic living foraminifera in two dimensions in a centimetre-scale vertical grid and dissolved iron and phosphorus in two dimensions at high resolution (200 μm). Such an approach appears crucial for the study of foraminiferal ecology in highly dynamic and heterogeneous sedimentary systems, where dissolved iron shows a strong variability at the centimetre scale. On the studied intertidal mudflat of the Loire estuary, foraminif...

S. Anand, and Y. S. Mayya

We examine the parameterized model of Stuart et al. (2013) vis-à-vis a diffusion-based model proposed by us earlier (Anand and Mayya, 2011) to estimate the fraction of aerosol particles surviving coagulation in a dispersing plume. While the Stuart et al. approach is based on the solutions to the coagulation problem in an expanding plume model, the diffusion-based approach solves the diffusion–coagulation equation for a steady-state standing plume to arrive at the survival fraction correlations....

Bilal Hussain, and Tayyaba Sultana, and Salma Sultana, and Muhammad Shahreef Masoud, and Zubair Ahmed, and Shahid Mahboob

Owing to white meat production Labeo rohita have vast economic importance, but its population has been reduced drastically in River Chenab due to pollution. Atomic absorption spectrophotometry showed a merciless toxicity level of Cd, Cu, Mn, Zn, Pb, Cr, Sn and Hg. Comet assay results indicated significant (p < .05) DNA fragmentation in Labeo rohita as 42.21 ± 2.06%, 31.26 ± 2.41% and 21.84 ± 2.21% DNA in comet tail, tail moment as 17.71 ± 1.79, 10.30 ± 1.78 and 7.81 ± 1.56, olive moment as 13.58...

Hiram Herrera-Barquín, and Antonio Leija-Tristán, and Susana Favela-Lara

We provide an updated list of the caridean shrimp species from the southern region of the Laguna Madre, Tamaulipas, Mexico, along with a key for taxonomic identification. The survey was conducted in 3 sites during 3 temporal seasons. A total of 2,989 specimens were collected belonging to 12 species, 6 genera, and to the following 4 families: Alpheidae, Hippolytidae, Palaemonidae, and Processidae. Hippolytidae was the most abundant family, followed by Palaemonidae, Alpheidae, and Processidae. The...

Adrienne Jochum, and Adrien Favre

Two heterobranch species, Stylocheilus striatus (Quoy &amp;amp; Gaimard, 1825) (Anaspidea, Aplysiidae) and Pleurobranchus&amp;nbsp;forskalii R&amp;uuml;ppel &amp;amp; Leuckart, 1828 (Nudipleura, Pleurobranchidae) are reported for the first time for Bazaruto&amp;nbsp;Island, Mozambique. Swarming behavior of Stylocheilus striatus, which was previously described for other localities,&amp;nbsp;was also observed for the first time in the Bazaruto Archipelago. The sea slugs were photographed in situ a...

Mulugeta Wakjira, and Abebe Getahun

The freshwaters of the East African nation of Ethiopia are divided into nine main drainage basins. One of these, the Omo-Turkana basin, spans a large part of southwestern Ethiopian highlands and northern Kenya, and consists of the Omo-Gibe (or simply, Omo) River and a northern portion of Lake Turkana. Despite some development activities, including proposed dam construction with potential impacts on ichthyofaunal diversity, the Ethiopian part of the basin generally lacks comprehensive study or fu...

Yander Diez García, and Abdiel Capote

Marine crustaceans constitute one of the best studied groups in the Cuban waters. However, the level of systematic knowledge about them differs among the ecoregions of the platform. This paper presents the systematic list of hermit, porcelain and brachyuran crabs of the coast of Santiago de Cuba, on the southeast platform of Cuba. The records of the species have been compiled between 2009 and 2013, in ten locations, which differ in the type of habitats. Additional material was examined in the co...

Tayná Martins, and Ana Vendel

A list of the species of fishes collected in the Barra de Camaratuba estuary, Paraiba, Brazil, is presented.Specimens were collected on a monthly basis between January and December 2012, using a fishing technique known locally as “Tomada”, an artisanal fish trap like a barrier. Forty species were collected, belonging to 27 genera and 20 families of the Teleostei. The Gerreidae was the most representative family, with 6 species, followed by the Lutjanidae and Tetraodontidae, with four species eac...

Roney de Paiva, and Sergio Lima, and Telton Ramos, and Liana Mendes

The purpose of this study was to inventory the ichthyofauna of the coastal Pratagi River basin, located on the east coast of the state, region with intense tourist activities. A total of 2,181 specimens were collected, from August 2011 to August 2013, using sieves, trawls, cast nets, traps and gillnets. Additionally, two species (Centropomus sp. and Lutjanus alexandrei) have only been recorded through underwater observations, summing 22 species and genera, 18 families and nine orders. Along the ...

Fany Merino-Virgilio, and Yuri Okolodkov, and Ana Aguilar-Trujillo, and Jorge Herrera- Silveira

Based on long-term monitoring (2001-2012) and four oceanographic cruises (2010-2012) in the coastal and shelf waters of the Yucatan Peninsula, SE Gulf of Mexico, a list of 306 strictly phytoplanktonic and tychoplanktonic species from 131 genera is presented: centric diatoms (83 species), raphid diatoms (47), araphid diatoms (22), Dinoflagellata (124), Cyanoprokaryota (18), Ebriacea (2), Chlorophyceae (3), Dictyochophyceae (2), Euglenophyceae (2), Cryptophyceae (1), Prymnesiophyceae (1), and Raph...

Fabrício Domingos, and Ralph Thomé, and Rosy Ribeiro, and Helena Souza, and Hélio Santos

Despite the economic and ecological importance of the Itapecerica River, there is no information about the local fish fauna. The aim of the present study was to provide a list of fish species in Itapecerica River, a tributary of the upper São Francisco River basin, inside an urban area. The specimens were collected quarterly from May 2010 to February 2012, using casting nets, trawl net and gillnets. We listed 29 species belonging to 21 genera of 14 families and 4 orders. Characiformes were repre...

Abdelkabir KAMILI, and Mohammed Rachid DOUKKALI

This work examines the impact of rising world prices of fishery products on the production and profitability of fishing activities as well as the state of exploited stocks. For this purpose, a computable general equilibrium model (CGME) coupled with a biological model is used. This model makes it possible to integrate the sustainability of exploited stocks. The results show that the continued increase in world prices for fish products would lead to a sharp increase in production accompanied by a...

R. Nahavandi; S. Rezvani; Gh. Vosoghi; B. Kazemi

We used PCR-RFLP method to identify cuttlefish (Sepia pharaonis) populations in the Persian Gulf and the Sea of Oman. Bottom trawling method was used to collect a range of 20 to 40 specimens from each 15 stations in the study area. Genomic DNA was extracted by phenol-chloroform method and one pair primer was designed for the analysis based on 18s rRNA gene nucleotide sequences. A PCR product with 502 pair bases in length was obtained for all specimens and subjected to digestion by eight restrict...

Zotti F, and Zotti R, and Albanese M, and Nocini PF, and Paganelli C

Francesca Zotti,1 Rinaldo Zotti,2 Massimo Albanese,1 Pier Francesco Nocini,1 Corrado Paganelli21Department of Surgery, Dentistry, Paediatric and Gynecology, University of Verona, 37134 Verona, Italy; 2Department of Orthodontics, School of Dentistry, University of Brescia, 25100 Brescia, ItalyPurpose: To determine whether the use of social media is useful in improving compliance and follow-up attendance among patients wearing retainers after orthodontic treatment.Patients and methods: Sixty post-...

Viktor GOURETSKI

This report describes the main features of the recently published World Ocean Experiment–Argo Global Hydrographic Climatology. This climatology is based on profile data from ships, Argo floats, and sensors attached to marine mammals. As an important deviation from the widely used climatologies produced previously by the National Oceanographic Data Center, the spatial interpolation was performed on local potential density surfaces, so that no ‘artificial water masses’ were created. In addition to...

Mariska Riana Greeff-Laubscher, and Ilze Beukes, and Gert Johannes Marais, and Karin Jacobs

Mycotoxins are toxic secondary metabolites produced by various filamentous fungi, of which Fusarium, Aspergillus and Penicillium are the three main genera. Fusarium verticillioides is one of the most dominant toxigenic fungal species, associated with fumonisin contamination in grain-based feeds, such as compound abalone feed. Mycotoxin production is influenced by temperature and available nutrients. In this study the aims were: to determine if abalone feed as growth substrate favours mycotoxin p...

Jinsung Chun, and Youngsoo Kim, and Jin Woo Choi, and Daesoo Kim, and Sungho Jo

Abstract Animals are capable of using visual cues to find the correct route during navigation. These visual cues, which contain spatial information on the direction towards the goal point, are perceived either allocentrically or egocentrically. In this study, we examined how navigating with these two types of visual cues affects the learning processes of rodents. To present egocentrically-stable spatial cues, we devised a head-mounted device that provided discriminative orientation cues that ind...

Cláudia R. Serra, and Eduarda M. Almeida, and Inês Guerreiro, and Rafaela Santos, and Daniel L. Merrifield, and Fernando Tavares, and Aires Oliva-Teles, and Paula Enes

Abstract The gastrointestinal microbiota plays a critical role on host health and metabolism. This is particularly important in teleost nutrition, because fish do not possess some of the necessary enzymes to cope with the dietary challenges of aquaculture production. A main difficulty within fish nutrition is its dependence on fish meal, an unsustainable commodity and a source of organic pollutants. The most obvious sustainable alternatives to fish meal are plant feedstuffs, but their nutritive ...

H.Z. Naghashyan, and A.R. Hakobyan, and A.A. Martirosyan

The aim of this work was to study and define the example of one pond fisheries of the Republic of glugеosis distribution of fish; the species composition of fish, affected by the causative agent of the disease; the intensity and extensity of invasion, and pathways of the pathogen into the territory of our Republic. Based on the results of the conducted research we can conclude that in pond farms of the Republic entered a new parasitic disease glugeosis, that threatens the successful development ...